CROSS REFERENCE TO RELATED APPLICATIONS This application claims the benefit of and priority to U.S. Provisional Patent Application No. 62/130,906, filed on Mar. 10, 2015 and is related to U.S. patent application Ser. No. 14/046,047, filed on Oct. 4, 2013, both hereby incorporated by reference.
BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to encasements for mattresses and more particularly to various configurations of an outer encasement, an optional inner encasement or inner cover, or an optional separate cover which facilitates mattress maneuverability, which includes lifting, sliding, installation, removal, and rotation (hereinafter maneuvering) of a mattress assembly with respect to a box spring, foundation, or fixed or adjustable platform (hereinafter foundation) or alternatively facilitates maneuvering, sliding, installation, removal, and rotation of the mattress core with respect to the outer encasement and can optionally facilitate bed making.
2. Description of the Prior Art
Two (2) general types of encasements are known in the art. Both factory installed encasements (also known as OEM which stands for original equipment manufacturer) and aftermarket encasements are known. Both types of encasements are discussed below.
Factor Installed Encasements Factory installed encasements are used to cover various mattress cores, such as, innersprings, gel, and memory foam, or other mattress cores, pads, sections, assemblies, or components thereof, hereinafter referred to as mattress cores, used to form mattresses and mattress foundations or box springs. Some known mattresses are formed from a block or layers or sections of memory foam that is covered at the factory with a decorative encasement or 5 sided cover. Such factory-installed encasements are meant to be permanently installed. Unfortunately, should the decorative encasement become soiled with liquid or other fluid, the mattress is essentially ruined and requires replacement.
Another problem with factory-installed encasements is that any degradation or compression of the mattress core requires the entire mattress to be replaced. For example, the degree of firmness or loft of mattresses with foam cores varies with age and the weight of the user. As such, one side of the mattress may degrade or compress more than the other side, making the one side uncomfortable. In order to solve this problem, the mattress may be either replaced or covered with a “mattress topper”. Both of these solutions are expensive. Alternatively, the mattress can be rotated to even out the wear on both sides. Unfortunately, such mattresses are relatively heavy and thus are relatively cumbersome to rotate or maneuver.
After Market Encasements After market mattress encasements are used as prophylactic covers over an entire mattress to protect the mattress from various types of spills or stains, such as pet stains. Such encasements are also available for box springs and foundations. Examples of such encasements are disclosed in US Patent Application Publication Nos.: US 2012/0260426; US 2012/0255120; 2012/0192356; 2012/0167302; and 2011/00100856 as well as U.S. Pat. Nos. 8,087,111 and 8,156,588, all hereby incorporated by reference.
Some known after-market encasements are made from a vinyl material. There are several problems with such vinyl encasements. One such problem is that they are uncomfortable. Another problem relates to cleaning them after being soiled with blood, urine or other matter. Such vinyl encasements cannot be laundered. In order to solve this problem, encasements made from launderable materials have been developed. For example, U.S. Pat. No. 8,087,111 discloses an encasement formed from two layers; an inner layer and an outer layer. The outer layer of the encasement is formed from cotton or other common encasement material. The outer layer of the encasement is also known to be formed from other materials commonly used for mattress protectors, as well as bedding fabric, such as polyester knitted fabric or a polyester-cotton blend. The inner layer is formed with a waterproof membrane, for example, a thermoplastic polyurethane coating or other suitable waterproof coating.
Because of the need for laundering such encasements, some known encasements are formed with a zipper along one to three sides forming a pocket on one end for installation and removal of the mattress for laundering. In order to remove an encasement, the zipper is unzipped along one or more sides, the mattress is lifted from the box spring or foundation. The encasement is then removed entirely from the mattress. To install or re-install a new or freshly laundered encasement, once the mattress is lifted, it is flipped upside down so that the mattress top is in contact with the foundation and the dust cover, normally on the bottom of the mattress, is facing upwardly. Next, the mattress is slid off one end of the foundation to enable the pocket to be slipped over one end of the mattress. The mattress is then lifted off of the bed and held or balanced on edge so that the encasement can be installed onto the rest of the mattress. The encasement is then slipped over the rest of the mattress. The mattress is repositioned onto the bed and again flipped over so that the dust cover is resting on the foundation and the comfort top is facing upwardly. The top layer of the encasement, with the waterproof membrane, is then zipped to the bottom layer of the encasement to complete the installation. Such a task is very cumbersome and due to the weight of the mattress requires multiple individuals.
There are various situations that require a mattress to be lifted in addition to removing and installing encasements. More specifically, mattresses are known to be lifted in connection with bed making. In particular, various institutional facilities, such as hotels and healthcare facilities require the beds be made with flat sheets. Bed making in such institutional facilities with such flat sheets requires the sheets to be tucked between the mattress and the foundation. In order to tuck the sheets between the mattress and the foundation, the mattress has to be lifted.
Mattresses are relatively heavy items. Both foam and hybrid foam/coil spring mattresses are known. The weight of a mattress varies as a function of the coil core size, the gauge of the coil and the type of foam material used. An average king size mattress weighs between 85 and 115 pounds. High end king size mattresses with latex or memory foam can weigh as much as 300 pounds (mattressdirectonline.com). As such, lifting the mattress for bed making or to remove an encasement can be an extremely difficult task for an individual to perform. In hotels and motels, where housekeepers must make up multiple beds every day, cumulative repeated lifting of mattresses by a single housekeeper can be quite debilitating.
Another problem with encased mattresses relates to the difficulty in maneuvering a mattress, for example to install or remove a bed skirt. For one thing, encasements cause the mattress handles to be covered making an encased mattress difficult to maneuver. The problem is especially acute if there is a bed skirt on the foundation. In that case, maneuvering the mattress causes the bed skirt to move out of position. In such a situation, the mattress has to be removed from the foundation. The bed skirt is then positioned over the foundation. In order to avoid moving the bed skirt during installation of the mattress, the mattress has to be lifted over the foundation and bed skirt and lowered onto the foundation. This is a very cumbersome task and requires more than one person.
Thus, there is a need for an encasement that can easily be installed or removed for changing or laundering that facilitates bed making as well as maneuvering of a mattress, even in applications that include a bed skirt. There is also a need for further minimizing or eliminating the burden for housekeeping individuals that need to make beds with fitted sheets.
SUMMARY OF THE INVENTION Briefly, the invention relates to an encasement system for a mattress. Various embodiments of the encasement system in accordance with the invention are disclosed. All of the embodiments include an inner and/or an outer encasement, which may be a decorative encasement, for example, normally provided on new mattresses by mattress manufacturers. Unlike factory installed outer encasements, the outer encasements disclosed herein are removable and are generally formed from 2 covers, for example, a top cover and a bottom cover. One or both covers may be removed, for example, to replace one or more layers or sections of a foam mattress or innerspring core, mattress core, or the encasement itself. The top cover may be removed for replacement or laundering. Various embodiments of the encasement systems are disclosed. In one embodiment, an outer encasement receives a mattress core and defines an outer mattress assembly which cooperates with an outer cover to facilitate maneuvering of the outer mattress assembly with respect to the foundation. Alternatively, both the outer mattress assembly along with the outer cover may be maneuvered over the surface of the foundation. In another embodiment of the encasement system, a removable outer decorative encasement is disclosed for receiving a mattress core forming an outer mattress assembly. This embodiment allows the mattress core to be maneuvered over the inside bottom surface of the outer decorative encasement. Alternatively, this latter embodiment allows the outer mattress assembly to be maneuvered with respect to the foundation. In yet another embodiment, a removable inner encasement is disclosed for receiving a mattress core forming an inner mattress assembly. The inner mattress assembly is received in an outer decorative encasement forming an outer mattress assembly. In this embodiment, the mattress core can be maneuvered with respect to the inner encasement and the inner encasement can be maneuvered with respect to the outer decorative encasement and the outer mattress assembly can be maneuvered with respect to the foundation. Another embodiment of the encasement system is similar to the last mentioned embodiment except this embodiment includes an inner cover formed as an open top five sided cover in lieu of the inner encasement. All of the various embodiments of the encasement system are available as a passive device, which provides the features mentioned above, and an active device, which additionally can be used to selectively maneuver or lift the mattress to facilitate bed making.
Other embodiments include inner encasements formed from top and bottom covers which are removable and are connected to a separate band or strip. The upper and lower covers as well as the band may optionally be formed from a decorative fabric. The upper and lower covers are removably attached to the strip with, for example, opposing 180 degree zippers to allow the upper and lower covers to be removed and re-installed. The 180 degree zippers allow the upper cover to be re-attached to the strip after the mattress core and the upper cover have been rotated 180 degrees. The lower cover can be flipped down over the foundation exposing its interior slick surface to an underside of the mattress core. The mattress core including the top cover can then be rotated and reconnected by way of the 180 degree zippers. A bottom panel of the lower covered is zippered on 3 or 4 sides to facilitate installation and removal of the mattress core.
In other embodiments, an inner encasement is provided with top and bottom covers which are together. An additional cover is provided. The additional cover is removably attachable to the top cover of the inner encasement directly or by way of a flap that is connected to the top cover of the inner encasement in a way that conceals the inner encasement zipper. The bottom surface of the additional cover may be provided with attachment provisions for attachment of the additional cover to the foundation. An inner bottom surface of the additional cover and/or the bottom surface of the bottom cover of the inner encasement may be provided as slick surfaces. These slick surfaces facilitate rotation of the encased mattress core when the additional cover is flipped down over the foundation. The additional cover may also include an inflatable air volume for levitating the mattress for maneuvering.
In yet other embodiments, an inner encasement and separate outer top and bottom covers is disclosed. The inner encasement is used to encase the mattress core. The inner encasement includes removable and re-installable top and bottom covers. These inner encasement covers are removably attachable to each other to encase a mattress core. The outer covers are attached to each other by way of 180 degree zippers. These outer covers may be un-attached so that the top outer cover can be folded down over the platform to enable the encased mattress core and top outer cover to be rotated 180 degrees. The 180 degree zippers allow the top outer cover to be re-zippered to the bottom outer cover. In some embodiments, the bottom outer cover is provided with an inflatable air volume to facilitate mattress maneuvering.
In other embodiments, an inner encasement is provided which includes a top cover and a bottom cover removably attached together. One or both of an outer top cover or an outer bottom cover may be attached to the inner encasement or to a flap that is attached to the inner encasement. In embodiments that include a bottom cover, an inflatable volume may be provided to facilitate maneuvering of the mattress.
Other embodiments of encasements are configured as “one size fits all”. These embodiments include top cover and a bottom cover that are zippered on 3 sides. Both the top cover and the bottom cover include a horizontal panel and vertical side panels. In accordance with this embodiment, the vertical side panels and optionally the horizontal panel of the top cover are made from a fabric that is stretchable in a vertical direction. An inner surface of the bottom cover may be formed as a slick surface. The slick surface facilitates horizontal rotation of the mattress core when the top and bottom covers are un-zippered. In this mode, the bottom cover is folded down over the foundation and the top cover is flipped over to one side. The bottom cover may be further configured with an inflatable volume to further facilitate mattress maneuvering.
In yet another embodiment, a fitted mattress cover is provided that can easily be secured in place. The mattress cover includes a horizontal panel and vertical side panels. The vertical side panels are attached to the periphery of the horizontal panel. A free end of the vertical side panels includes an elastic band. The horizontal panel and vertical panels are configured to fit somewhat loosely over the mattress. Zippers are used to cinch the corners. In particular, a zipper is attached to 2 or 4 of the corners. After the mattress cover is in place over the mattress, the zippers are zipped to snug the cover to the mattress.
Various configurations of the encasements are provided. In one embodiment, an encasement cover is formed from 2 pieces. One piece is in a “C” shape and forms 3 vertical side walls. The other piece is in an “L” shape and forms the horizontal panel and the fourth vertical sidewall. Another embodiment [c-c] pieces. In another embodiment, both the top and bottom covers can be formed from 2 pieces of material. The top cover is formed from a “C” shaped piece of material that forms a top horizontal panel and 2 vertical sidewalls. The bottom cover is also formed from a “C” shaped piece of material that forms a bottom horizontal panel and 2 vertical side panels. The 2 sidewalls from the top cover plus the 2 sidewalls from the bottom cover may be removably attached together to form an encasement from 2 pieces of material. A clam shell configuration of a mattress encasement is provided that is removably attached along 3 sides. In addition, 2 of the vertical side panels adjacent the unattached side of the top cover are also removably attached to facilitate a mode in which the side panels are folded down over the foundation. A stretchable material may also be used to bridge the gap between the zippered vertical panels and a vertical panel that connects the top horizontal panel to the lower horizontal panel.
DESCRIPTION OF THE DRAWING These and other advantages of the present invention will be readily understood with reference to the following specification and attached drawing wherein:
FIG. 1A is a front elevational view of one embodiment of an active encasement with an integrated inflatable volume.
FIG. 1B is similar to FIG. 1A but illustrating an alternative embodiment of the encasement in which the inflatable volume is integrated into a separate cover that may be attached and detached from the encasement by conventional techniques.
FIG. 1C is a bottom view of the encasement shown in FIG. 1A illustrating an optional air valve with an optional cap integrally formed in a bottom panel of the encasement for releasing excess air from the encasement after the encasement has been installed on a mattress.
FIG. 1D is a section view of the encasement illustrated in FIG. 1A illustrating an optional filter, such as a HEPA filter, in fluid communication with the interior of the encasement for filtering air into and out of the encasement.
FIG. 1E illustrates an embodiment of passive encasement in which a zipper is disposed along three (3) edges of an end vertical side panel, illustrating the encasement zipped and unzipped.
FIG. 1F is similar to FIG. 1E but illustrating a zipper disposed along three (3) edges of a side vertical side panel, illustrating the encasement zipped and unzipped.
FIG. 2A is an exploded isometric view of a passive embodiment illustrating a mattress core, an inner encasement and an outer encasement.
FIG. 2B is an isometric view of mattress supported by a foundation in which the mattress is covered with an encasement, for example, as illustrated in FIG. 2A, and shown with the encasement partially unzipped at one end.
FIG. 2C is an enlarged partial sectional view of one corner of the mattress illustrated in FIG. 2.
FIG. 3 is an isometric view of a mattress covered with an active encasement having an integrated inflatable volume with a plurality of air discharge holes and an attachment point, shown with a bed skirt covering the foundation and with the encased mattress removed from the foundation.
FIG. 4 is similar to FIG. 3 except illustrating an alternative embodiment of the active encasement.
FIG. 5 is a partial isometric view of an air supply for use with the encasement disclosed herein, shown with a conduit for feeding the inflatable volume, illustrating one embodiment of an optional air discharge valve in the conduit for regulating the airflow.
FIG. 6 is a sectional view of the valve illustrated in FIG. 5, shown with the valve closed.
FIG. 7 is similar to FIG. 6 but shown with the valve partially open.
FIG. 8 is similar to FIG. 4 but without air discharge holes but including an attachment point and an embodiment of an air discharge valve as illustrated in FIG. 8A, wherein the air discharge hole is shown integrated into the inflatable volume for varying the air discharge from the inflatable volume.
FIG. 8A is view of the air discharge valve illustrated in FIG. 8, shown partially open.
FIG. 9 is similar to FIG. 8 but shown with an alternate embodiment of the air discharge valve as illustrated in FIG. 9A.
FIG. 9A is an isometric view of an alternate embodiment of an air discharge valve illustrated in FIG. 9, shown partially open.
FIG. 10 is similar to FIG. 4, but illustrating an embodiment in which the porosity of the bottom panel of the encasement is used to control the air discharge as shown in FIG. 10A.
FIG. 10A is a partial enlarged view of a portion of the bottom panel of the encasement illustrating the air flow there through.
FIG. 11 is a partial sectional view of an active encasement with an inflatable volume with a center attachment point and air exit holes as illustrated in FIGS. 3 and 4, which illustrates the air flow into and out of the inflatable volume which provides the lift.
FIGS. 12 and 13 are isomeric views illustrating a mattress being removed from a foundation covered with a bed skirt.
FIG. 14 illustrates one embodiment of an encasement in accordance with the invention which includes three zippered sides, shown with all three zippered sides unzipped and with a bottom panel in contact with a bed skirt covering the foundation and the top panel of the encasement on the floor at one end of the bed and a portion of the unzipped vertical side panel resting on an interior surface of the bottom panel of the encasement, illustrating a person unfolding that portion of the vertical side panel down so that all of the vertical side panels of the encasement are all folded down and disposed over the side panels of the bed skirt, shown with an air pump attached to the underside of the encasement
FIG. 15 illustrates the person sliding the mattress on top of the interior surface of the bottom panel of the encasement, shown with air pump attached to the underside of the encasement.
FIG. 16 illustrates a top panel of the encasement being placed over the top of the mattress, shown with the pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIG. 17 is similar to FIG. 16, shown with an upper side panel portion of a vertical side panel and a lower portion of a vertical side panel being zipped together, also shown with the pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIG. 17A is an enlarged partial view of a portion of one corner of mattress and foundation illustrated in FIG. 16, illustrating the zipper at the corner of the encasement partially unzipped.
FIG. 18 is an isometric view of a mattress encased with an active encasement, illustrating the upper and lower side panel portions of a vertical panel on one side of the encasement being unzipped in preparation for rotation of the mattress, shown with the pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIG. 19 illustrates the top panel of the encasement removed from the mattress and draped on the floor at one end of the mattress, shown with the pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIG. 20 illustrates the lower vertical side panel portion on one side of the encasement being folded down over the bed skirt, shown with the pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIG. 21 illustrates rotation of the mattress relative to an interior surface of the bottom panel while the encasement and bed skirt remains in place, shown with the pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIG. 22A is an exploded isometric drawing of an alternate embodiment of the encasement as illustrated in FIG. 1B, illustrating a mattress removed from the encasement and separated from the foundation, shown with an inflatable volume integrated into a separate cover, also shown with connection means on the bottom of the cover configured to mate with corresponding connection means on the foundation.
FIG. 22B similar to FIG. 22A but shown with a bed skirt over the foundation and no connection means.
FIG. 23 is similar to FIG. 22B but shown with the cover attached to the foundation and illustrating the encased mattress being rotated with respect to the cover, shown with the pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIG. 24 is similar to FIG. 22B but shown with the cover and integrated inflatable volume attached to the mattress over the encasement, shown with the pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIG. 25 is a partial sectional view illustrating the horizontal air flow and mattress lift direction when the inflatable volume is inflated, shown with the air pump connected to the inflatable volume, which is integrated into the bottom panel of the encasement.
FIG. 26 is a sectional view of a mattress encased by an active encasement, shown with the inflatable volume inflated illustrating a person making a bed with flat sheets, shown with the pump connected to the inflatable volume, which is integrated into the bottom panel of the encasement.
FIG. 27 is a partial sectional view of the mattress and foundation illustrated in FIG. 26, shown enlarged.
FIG. 28 is similar to FIG. 26 illustrating a portion of a flat sheet being tucked under the mattress, between the bottom surface of the inflatable volume and a bed skirt.
FIG. 29A is an isometric view of an encased mattress separated from an adjustable platform, shown with connection means on the bottom of the encasement configured to be attached to corresponding means on the adjustable platform.
FIG. 29B is an isometric view of the encased mattress and adjustable platform illustrated in FIG. 29A, shown in a contorted position.
FIG. 29C is isometric view of an active encasement installed on a mattress carried by an adjustable platform, shown with the encased mattress removed from the adjustable foundation.
FIG. 30 is an isometric view of an optional vertical adjustment device, installed in various locations on the side panels of an encasement installed on a mattress to tighten the encasement with respect to a mattress in a vertical direction, shown with an air pump connected to the inflatable volume which is integrated into the bottom panel of the encasement.
FIGS. 31-36 are partial isometric views of various optional adjustment devices for use with the encasement disclosed herein.
FIG. 37 is an isometric view of an optional separate cover for use with the encasement disclosed herein.
FIG. 37A is an alternate embodiment of the cover illustrated in FIG. 37 illustrating an embodiment in which the side panels overlap a portion of the rectangular panel of the cover, shown in a position in which it is attached to the underside of a mattress encasement.
FIG. 37B is similar to FIG. 37A but shown in a position in which the cover is flipped down over a foundation.
FIG. 37C is a bottom view of the embodiment illustrated in FIG. 37A.
FIG. 37D is a cross-sectional view of an alternate embodiment of an encasement.
FIG. 37E is a bottom view of the encasement illustrated in FIG. 37D.
FIGS. 38A-38H illustrate the steps involved to remove a mattress from a foundation to install a bed skirt and an encasement in accordance with the invention.
FIGS. 39A-F illustrate the steps involved in rotating a mattress in accordance with the present invention.
FIG. 40 illustrates a mattress encased with an active encasement, shown supported by a foundation covered by a bed skirt and also shown with optional horizontal adjustment devices to snug the encasement relative to the mattress.
FIG. 41 is similar to FIG. 40 but illustrates a passive version of the mattress encasement system.
FIG. 42 is an exploded isometric view of an embodiment of the encasement system illustrating a foam core, an outer encasement, and a separate outer cover, shown with the mattress foam core, outer encasement, and the external cover removed from the foundation, also shown with optional air pump attached to the expandable volume integrally formed in the outer cover.
FIG. 42A is a sectional view of the embodiment illustrated in FIG. 42 in elevation along a short axis of the mattress, in which the separate outer cover is illustrated as a passive device.
FIG. 42B is similar to FIG. 42A but illustrating the separate outer cover as an active device which includes an inflatable volume integrated into a bottom surface of the cover.
FIG. 42C is similar to FIG. 42 but illustrates an embodiment for an adjustable foundation in which the outer cover includes one or more attachment points for mating with corresponding attachment points on an adjustable foundation.
FIG. 43 is an exploded isometric view of another embodiment of the encasement system illustrating a foam mattress core and an outer encasement, shown with the mattress foam core and the outer encasement removed from the foundation, also shown with optional air pump attached to the bottom of the encasement.
FIG. 43A is a sectional view of the embodiment illustrated in FIG. 43 in elevation along a short axis of the mattress, in which the outer encasement is illustrated as a passive device.
FIG. 43B is similar to FIG. 43A but illustrating the outer encasement as an active device which includes an inflatable volume integrated into a bottom surface of the outer encasement.
FIG. 43C is similar to FIG. 43 but illustrates an embodiment for an adjustable foundation in which the outer cover includes one or more attachment points for mating with corresponding attachment points on an adjustable foundation.
FIG. 44 is an exploded isometric view of another embodiment of the encasement system illustrating a mattress foam core, an outer encasement, and an inner encasement, shown with the mattress foam core, the outer encasement and the inner encasement removed from the foundation, also shown with optional air pump attached to the outer encasement.
FIG. 44A is a sectional view of the embodiment illustrated in FIG. 44 in elevation along a short axis of the mattress, in which the outer encasement is illustrated as a passive device.
FIG. 44B is similar to FIG. 44A but illustrating the outer encasement as an active device which includes an inflatable volume integrated into a bottom surface of the outer encasement.
FIG. 44C is similar to FIG. 44 but illustrates an embodiment for an adjustable foundation in which the outer cover includes one or more attachment points for mating with corresponding attachment points on an adjustable foundation.
FIG. 45 is an exploded isometric view of yet another embodiment of the encasement system illustrating a mattress foam core, an outer encasement, and an inner cover, shown with the mattress foam core, the outer encasement and the inner cover removed from the foundation, also shown with optional air pump attached to the outer encasement.
FIG. 45A is a sectional view of the embodiment illustrated in FIG. 45 in elevation along a short axis of the mattress, in which the outer encasement is illustrated as a passive device.
FIG. 45B is similar to FIG. 45A but illustrating the outer encasement as an active device which includes an inflatable volume integrated into a bottom surface of the outer encasement.
FIG. 46A is an isometric drawing of a mattress with an encasement consisting of top and bottom covers connected to a center strip.
FIG. 46B is an isometric drawing of a mattress core with a center strip with the top and bottom covers removed.
FIG. 46C is a simplified diagram of pair of 180 degree zippers, i.e. chiral zippers, used to connect the top and bottom covers to the center strip for embodiments in which the mattress core and top cover are rotatable.
FIG. 47 is an isometric view illustrating the top and bottom covers which include the 180 degree zippers illustrated in FIG. 46C, attached on all 4 sides.
FIG. 48 is a simplified isometric view of the center strip illustrated in FIG. 46B, shown with an upper and lower toothed zipper strip for attachment to the upper encasement cover and lower encasement cover respectively.
FIG. 49 is a simplified drawing if the two 180 degree zippers used to attach the top and bottom covers to the center strip illustrated in FIG. 48.
FIG. 50 is an exploded isometric view of an exemplary embodiment of an active cover configured to be zipped onto an aftermarket mattress encasement.
FIG. 51 is a sectional view of an alternate embodiment of the bottom encasement cover illustrated in FIG. 50 but shown with a separate flip cover with an inflatable volume disposed on top of the flip cover.
FIG. 52 is similar to FIG. 51, shown with the inflatable volume disposed below the flip cover.
FIG. 53 is an isometric view of an exemplary embodiment of an encasement with a top cover attached to a bottom cover on all 4 sides that can be used as an inner encasement or an outer encasement with a separate removable outer cover.
FIG. 54 is an isometric view of exemplary embodiment of an encasement with a removable bottom panel that is zippered on 4 sides, shown with one corner of the bottom panel folded down.
FIG. 55 is similar to FIG. 54 but including a bottom panel that is zippered on 3 sides and shown with the bottom panel folded down.
FIG. 56 is an end sectional view in elevation of an embodiment illustrating a mattress core encased by an inner encasement having removable top and bottom covers that are removably attached each other and a separate outer passive cover that is removably attached to the top cover of the inner encasement.
FIG. 57 is similar to FIG. 56 but illustrating a side elevational view.
FIG. 58 is similar to FIG. 56 but illustrating an active version.
FIG. 59 is similar to FIG. 57 but illustrating an active version.
FIG. 60 is similar to FIG. 56 but illustrating the passive outer cover attached to a flap that is attached to the top cover of the inner encasement.
FIG. 61 is similar to FIG. 60 but illustrating an active outer cover attached to a flap that is attached to the top cover of the inner encasement.
FIG. 62 is an end sectional view in elevation of an embodiment of an encasement with removably attachable top and bottom covers for encasing a mattress core and an outer encasement having top and bottom covers that encase the mattress core and the inner encasement, shown with a passive bottom cover of the outer encasement.
FIG. 63 is similar to FIG. 62 but illustrating an active bottom cover of the outer encasement.
FIG. 64A is a sectional view in elevation of a mattress core encased by an inner encasement, which, in turn, is encased with an outer encasement and having top and bottom covers that are removably attachable to the inner encasement.
FIG. 64B is similar to FIG. 64A but shown with only a top cover that is removably attachable to the inner encasement.
FIG. 640 is similar to FIG. 64A but shown with only a bottom cover that is removably attachable to the inner encasement.
FIG. 65 is an end sectional view in elevation illustrating a mattress core encased by an inner encasement having top and bottom covers that are removably attachable to each other, further illustrating an outer encasement having a top cover and a passive bottom cover in which the outer top and bottom covers are removably attachable to separate flaps that are attached to the inner encasement.
FIG. 66 is similar to FIG. 65 but illustrating a side elevational view.
FIG. 67 is similar to FIG. 65 but illustrating an active outer cover.
FIG. 68 is a sectional view in elevation of a mattress core encased by an inner mattress encasement having a top and bottom cover removably attachable to each other; also illustrating an outer encasement having a top and bottom cover, the top outer cover removably attachable to the top inner cover and the bottom outer cover removably attachable to the bottom inner cover.
FIG. 69 is an exploded isometric view of an encasement having a top cover and a bottom cover in which the top cover is removably attachable to the bottom cover on 3 sides and in which the side panels and the top panel of the top cover are made from a stretchable material, shown with the top cover completely removed from the bottom cover.
FIG. 70 is an isometric view of the encasement illustrated in FIG. 69 shown with the top cover attached to the bottom cover, shown in a relaxed configuration.
FIG. 71 is similar to FIG. 70 but shown with the top cover in an expanded configuration.
FIG. 72 is similar to FIG. 69 that includes a top cover that may be vertically stretched and additionally illustrates a version in which the lower cover is configured for passive mattress rotation.
FIG. 73 illustrates various embodiments for the bottom panel of the lower cover illustrated in FIG. 72.
FIG. 74 is similar to FIG. 72 but additionally includes a levitation panel that can be attached to the bottom panel of the bottom cover or can form the bottom panel of the bottom cover.
FIG. 75 illustrates an embodiment in which the levitation panel is disposed on top of the bottom panel of the bottom cover of the encasement illustrating air inlet and air outlet holes on the bottom panel for mattress levitation.
FIG. 76 is similar to FIG. 75 but illustrating the levitation as the bottom panel of the lower cover.
FIG. 77 is similar to FIG. 75 but illustrating the levitation panel attached to the bottom of the bottom panel of the encasement.
FIG. 78 is an exploded isometric view of an exemplary levitation panel for use with the embodiment illustrated in FIG. 77.
FIG. 79 is an isometric view of a cover for an encasement or a fitted sheet which includes cinched corners.
FIGS. 80 and 81 are isometric views illustrating the steps in creating the cinched corners illustrated in FIG. 79.
FIG. 82 illustrates an exemplary zipper for use in cinching the corners on the cover or sheet illustrated in FIG. 79 in a zipped configuration and an unzipped configuration.
FIGS. 83 and 84 are partial isometric views illustrating the steps in creating the cinched corners stretchable sides and an elastic bead attached to the free ends of the vertical side panels of the cover.
FIG. 85 is a partial isometric view of a cover with one corner shown with the zipper in a zipped configuration.
FIG. 86A is a partial isometric view of an alternate embodiment of the cover with the cinched corners in which contiguous side panels are cut to form a cut-out with elastic or non-elastic material attached adjacent to the edges of the side panels and a zipper is attached to the edges of the side panels.
FIG. 86B is similar to FIG. 86A but with a cut-out along one of the side panels between 2 corners.
FIG. 86C-86F illustrate the process for attaching a zipper to 2 adjacent side panels on a cover.
FIG. 87 is an exploded perspective of a 2-piece encasement cover formed from a “C” shaped piece and an “L” shaped piece.
FIG. 88 is an isometric view of the 2 pieces sewn together, shown with cinch zippers removed from the corners.
FIG. 89 is similar to FIG. 88 shown with a zipper installed on one corner.
FIG. 90 is an isometric view illustrating an underside view of the cover illustrated in FIG. 89 shown with zippers installed on 2 corners.
FIG. 91 is an isometric view of a 3-piece cover.
FIG. 92 is an isometric view of the cover illustrated in FIG. 91 shown with zippers removed from 2 corners.
FIG. 93 is similar to FIG. 92 shown with a zipper installed on 1 corner.
FIG. 94 an isometric view illustrating an underside view of the cover illustrated in FIG. 93 shown with zippers installed on 2 corners.
FIG. 95 is an exploded isometric view of a 2-piece encasement formed from 2 “C” shaped sections.
FIG. 96 is similar to FIG. 95 but illustrating a zipper installed on all exposed edges.
FIG. 97 is an isometric view of an embodiment of a clam shell encasement, shown in a closed configuration, shown with a zipper attached to all exposed edges.
FIG. 98 is similar to FIG. 97 but shown in a partially open configuration.
FIG. 99 is similar to FIG. 98 but shown inverted and in an open configuration.
FIG. 100 is a partial isometric view of the encasement illustrated in FIG. 98 shown with a material bridging the gap formed in one of the corners.
FIG. 101 is an isometric view of an inner spring mattress single or double sided mattress encased with an encasement with removable top and bottom covers.
FIG. 102 is a top view of the encased mattress illustrated in FIG. 101, illustrating the operation of the dual zippers.
FIG. 103 is an isometric view of a bottom cover of the encasement illustrated in FIG. 101.
FIG. 104 is an isometric view of an encasement shown unzipped and further illustrating a zipper protection device.
FIG. 105 is an exploded perspective view of an active encasement cover shown with a drawstring and also shown with the 2 layers forming the inflatable volume.
FIG. 106 is an exploded isometric of an alternate configuration of an encasement.
DETAILED DESCRIPTION The encasement system disclosed in FIGS. 42-45 relates to various configurations of an outer encasement, an optional inner encasement or inner cover and an optional external cover. As will be discussed below, the encasement system facilitates mattress installation and removal, mattress rotation, lifting, and movement, (hereinafter referred to as maneuvering) of the mattress core or mattress core, as discussed below.
Various embodiments of an encasement and the encasement system are disclosed. In particular, FIGS. 1A-41 disclose an aftermarket outer encasement and the process for making and using the aftermarket outer encasement. FIGS. 42-45 illustrate embodiments of various encasement system configurations suitable for use as a factory installed OEM (original equipment manufacturer) device. Additional embodiments are illustrated in FIGS. 46A-46C, 47-63, 64A-64C, 65-85, 86A-86D and 87-106.
General Considerations The various attributes of aftermarket encasements illustrated in FIGS. 1A-41 are also applicable to the factory installed OEM encasement systems described and illustrated in FIGS. 42-45. Additional embodiments are illustrated in FIGS. 46A-46C, 47-63, 64A-64C, 65-85, 86A-86D and 87-106 that include both OEM and aftermarket embodiments.
Aftermarket encasements can be relatively easily installed or removed over a mattress supported by a foundation and are as generally described and illustrated in FIGS. 1A-41. Such encasements are formed to encapsulate a mattress and generally include a top panel, a bottom panel, optional four side panels and a conventional, or alternatively, a non-conventional zipper and optional zipper enclosure, as well as zippers and zipper enclosures typically used for encasements (hereinafter “zipper”).
Both aftermarket and OEM encasements may include an inflatable volume to facilitate maneuvering of a mattress/mattress core with respect to the box spring, foundation or platform. An exemplary inflatable volume is disclosed in U.S. Pat. No. 8,006,331, hereby incorporated by reference.
As used herein, a side panel is understood to mean those portions or the encasement that cover the side panels of the mattress core, inner encasement, or inner cover when the encasement is installed. One or more of the side panels may be zippered together. In embodiments in which one, two, or three side panels are zippered together, the un-zippered side panel(s) may be fixedly attached to connect the top panel to the bottom panel. It is to be understood that one of more of the side panels or portions thereof may be formed from at least one extended portion of the top panel and/or the bottom panel. In such embodiments the side panel portions may be zipped or otherwise attached to its corresponding side panel, top panel, or bottom panel.
The top and bottom panels, as well as the side panels, may be made from a conventional encasement material or a material commonly used for mattress protectors, as well as conventional bedding material, as described above. The underside of the top panel and optionally the inside of the side panels and bottom panel may be coated with a waterproof coating, such as polyurethane, to form a waterproof membrane.
In another alternative embodiment, the encasement may be formed with an oversized top and bottom panels that are zippered together on at least one side. The top and bottom panels are sized to cover the top and bottom surfaces, respectively, as well as at least one of the sides of the mattress. An extending portion which extends from the top and bottom surfaces of the mattress fits up against the sides the mattress. In this embodiment, one, two, three or four edges of the top and/or bottom panels may be zippered to the side panels.
In accordance with one aspect of one embodiment of the invention, the bottom panel of the external encasement is formed with a slick interior surface and a non-slick exterior surface. In this embodiment, the encasement is unzipped and the top and side panels are positioned below the surface of the mattress. In a rotate mode of operation, the exterior non-slick surface allows the mattress to be maneuvered while maintaining the position of the bottom panel of the encasement relative to the foundation and without affecting the position of any underlying bed skirt while the slick interior surface facilitates maneuvering of the mattress. The encasement also facilitates installation and removal of the encasement over a mattress or a foundation, such as a box spring or platform, while eliminating the need to lift or flip the mattress.
Optional straps may be provided, rigidly affixed to the encasement. The straps allow the encasement to be snugged against the mattress or foundation to enable the encasement to be used with a relatively wide range of mattress and foundation depths and still provide a snug fit.
In embodiments in which the inflatable volume is formed as part of a separate cover, the cover is simply detached from the encasement and attached to the box spring, foundation or platform which may be covered with a bed skirt. In this application, the mattress can be maneuvered, actively or passively, with the encasement fully installed with respect to the mattress. After the mattress is maneuvered, for example, rotated 180 degrees, the separate cover with the integral inflatable volume may be reattached to the mattress.
OEM Encasement Systems
With reference to FIGS. 42-45, four (4) exemplary embodiments of an OEM encasement system are disclosed that include a removable outer encasement alone or that cooperates with an inner encasement and/or an inner cover or separate outer cover or coated undersurface of a the mattress core in order to facilitate maneuvering of the mattress or mattress core, as discussed below. In addition to maneuverability, these embodiments enable relatively quick and easy replacement of the mattress core and/or outer encasement. In addition, these embodiments allow bed skirts to be easily installed and replaced. Both active and passive embodiments of each of the various embodiments are disclosed. The active embodiments, as discussed below, lift the mattress to facilitate mattress maneuvering and/or bed making, for example, as illustrated in FIG. 28.
A first exemplary embodiment of the encasement system is illustrated in FIGS. 42, 42A, 42B and 42C. As will be discussed in more detail below, the first embodiment includes an outer encasement 206, which may be a decorative encasement and permanently or removably attached around the mattress core 208, similar to FIGS. 1e and 1f. The outer encasement 206 may alternatively include a partially removable cover, as illustrated in FIG. 42 or totally removable top cover.
FIG. 42C is similar to FIG. 42 but illustrates an embodiment for an adjustable foundation in which the outer cover includes one or more attachment points for mating with corresponding attachment points on an adjustable foundation.
This embodiment also includes a separate external cover 218 that is removably attachable to the underside of the outer encasement 206 or alternatively attachable to a box spring, foundation, or fixed or adjustable platform (hereinafter” foundation”) 202. The outer encasement 206 is for receiving the mattress core 208 forming an outer mattress assembly. As will be discussed in more detail below, the outer encasement 206 allows the mattress core 208 to be replaced either partially or completely and allows the mattress core 208 to be maneuvered with respect to the outer encasement 206.
This embodiment allows the outer mattress assembly to maneuver, actively or passively, with respect to an external cover 204. FIG. 42A illustrates an embodiment that can be used for passive maneuvering while FIG. 42B illustrates an embodiment that can be used for active maneuvering.
As used herein, active maneuvering refers to mattress maneuvering that relies on an inflatable volume. Passive maneuvering refers to mattress maneuvering that relies on slick surfaces either on the bottom surface 210 (FIG. 42) of the outer encasement 206 or a slick surface 216 on the external cover 204.
Referring to FIG. 42A, the external cover 204 may be removably attached to the outer encasement 206, or alternatively to the foundation 202. In this embodiment, one or both of the bottom surface 210 (FIG. 42) of the outer encasement 206 or the interior surface 216 of the external cover 222 may be formed as a slick surface in order to facilitate maneuvering of the outer mattress assembly with respect to the external cover 204.
Alternatively, the external cover 204 can be permanently attached to the outer encasement 206. In this embodiment, one or both of the outwardly facing surface 220 of the separate external cover 204 or the top surface of the foundation 202 may be formed with a slick surface to allow the entire assembly, i.e., the mattress assembly+cover, to maneuver with respect to the foundation 202.
As mentioned above, active maneuvering is optionally available. FIG. 42B illustrates one embodiment of active maneuvering. In this embodiment, the external cover 204 is formed with an inflatable volume or bladder 219 on its bottom surface 220. As shown in FIG. 42, an external air pump 221 is used to supply air to the inflatable volume 219 by way of an air inlet, in an active mode of mattress maneuvering. Alternatively, the inflatable volume 219 may be formed on a top surface 216 (FIG. 42) of the cover 204. In this embodiment, the external air pump 221 is connected to the inflatable volume 219 on a top side 216 of the external cover 204.
Alternatively, the inflatable volume 219 can be integrally formed or disposed in contact with (hereinafter “integrally formed”) the mattress, the mattress core 208 or the foundation 208. For example, the inflatable volume 219 can be integrally formed on the top surface 203 of the foundation 202. In another alternative embodiment, the inflatable volume 219 can be integrally formed with respect to the bottom surface 210 of the outer decorative encasement 206 or a bottom surface 205 of the mattress core 208.
In certain embodiments, the air pump 221 will be maneuvered along with mattress assembly components being maneuvered. For example, in embodiments where the inflatable volume 219 is integrally formed on a bottom surface 210 of the outer encasement 206, the air pump 221 will be maneuvered along with the maneuvering of the mattress assembly. In other embodiments, for example, the embodiment illustrated in FIGS. 42 and 42B, the air pump 221 will remain stationary when the mattress assembly is maneuvered with respect to the external cover 204 and foundation 202. In the embodiments in which the inflatable volume 219 is integrally formed on the bottom surface 210 of the outer encasement 206, for example, the air pump 221 will be moved when the host component is maneuvered.
With the embodiment illustrated in FIGS. 42, 42A, and 42B, there are various configurations possible for active management and passive management for a mattress system. Each of these configurations is discussed below.
With respect to passive configurations, the embodiments illustrated in FIGS. 42 and 42A enable at least six possible configurations of passive mattress maneuvering. In one configuration, the mattress core 208 is maneuverable with respect to an outer encasement 206. In this configuration, one or both of an underside 205 (FIG. 42A) of the mattress core 208 and an inner surface 207 of the outer encasement 206 may be formed with a slick surface. In this configuration, the slick surfaces 205 and 207 are in constant contact with each other. However, the mattress core 208 is held in place by the outer encasement 206. In order to maneuver the mattress core 208 with respect to the outer encasement 206, the top panel 212 (FIG. 42) and the side panels 214 of the outer encasement 206 folded down below the bottom surface 205 of the mattress core 208. Once the top panel 212 and the side panels 214 of the outer encasement 206 are below the bottom surface 205 of the mattress core 202, the mattress core 208 can be freely rotated with respect to the outer encasement 206.
The outer encasement 206 has 6 panels; a top panel 212, a bottom panel 210, and 4 side panels 214. The top panel 212 may be opened up as shown or completely removed to enable the side panels 214 of the outer encasement 206 to be folded down over the cover 204 and the foundation 202; below the bottom surface 205 of the mattress core 208.
As mentioned above, the mattress core 208 disposed within the outer encasement 206 forms an outer mattress assembly. In an alternate configuration, the outer mattress assembly can be maneuvered with respect to the cover 204. In this configuration, the external cover 204 is removably attached to the foundation 202. One or both of the bottom surface 210 of the outer encasement 206 or an inner surface 216 of the cover 204 may be formed with a slick surface. In this configuration, the outer mattress assembly may be rotated with respect to the external cover 204 in a rotate mode of operation.
In an alternative configuration, which defines a rotate mode of operation, the external cover 204 is detached from the foundation 202 and removably attached to the underside of the outer mattress assembly. In this configuration the mattress assembly+the external cover 204 rotate with respect to the foundation 202. One or both of the bottom surface 220 of the external cover 204 or a top surface 203 of the foundation 202 may be formed with a slick surface to enable the mattress assembly, including the external cover 204, to be maneuvered with respect to the foundation 202.
It is also understood that a bottom surface 220 of the cover 204 may be provided with one of more attachment devices 222 and 224 to removably attach the external cover 204 to cooperating attachment devices 228 and 226 formed on the foundation 202. In this configuration, the attachment devices 222, 224, 228, and 226 allow the external cover 204 to be removably secured to the foundation 202. In one configuration in which the external cover 204 is removably attached to the foundation 202, the attachment devices 222, 224, 228, and 226 prevent movement of the external cover 204 during maneuvering of the outer mattress assembly. When such an encasement system is used on an adjustable foundation, the attachment devices may be used to secure the outer mattress assembly in place for different configurations of the adjustable foundation.
Alternately, in lieu of the attachment devices 222, 224, 226, 228, one or both of either the bottom surface 218 of the external cover 204 the top surface 203 of the foundation 202 may be at least partially formed with a non-slick surface which are configured to prevent unintentional movement of the outer mattress assembly+external cover 204 with respect to the foundation 202. Although the attachment devices are described and illustrated with respect to FIG. 42, the discussion above applies to the embodiments illustrated in FIGS. 43-45.
The encasement system illustrated in FIG. 42 can also be used for bed skirt management. Although a bed skirt is not shown in FIG. 42, the encasement system can be maneuvered, as discussed above, without altering the position of the bed skirt. There are two possible configurations for the bed skirt. In a first configuration the bed skirt (not shown) is placed over the foundation 202. Subsequently, the external cover 204 is removably attached of the foundation 202 over the bed skirt. The mattress is then maneuvered onto the foundation. During maneuvering of the outer mattress assembly, the external cover 204 holds the bed skirt firmly in place relative to the foundation 202. When the maneuvering is complete, the external cover 204 may be removed from the foundation 202 and re-attached to the outer mattress assembly. Alternatively, the external cover 204 can be attached to the foundation 202 under the bed skirt. In this configuration the bed skirt is placed over the external cover 204. In a normal mode the external cover 204 is attached to the foundation 202. When the outer mattress assembly is rotated, the external cover 204 is attached to the outer mattress assembly, thus securing the bed skirt in place between the external cover and the outer mattress assembly. At the completion of the maneuvering of the outer mattress assembly, the bed skirt and external cover 204 are reattached to the foundation 202.
In embodiments as illustrated FIGS. 43-45 that do not include an external cover, the outer and/or inner encasements can be used to prevent movement of the bed skirt with respect to the foundation during maneuvering of the mattress core, or inner or outer mattress assembly. More specifically, in these embodiments the sidewalls of these encasements or covers can be folded down in order to hold the bed skirt in place during maneuvering of the mattress core or inner or outer mattress assembly with respect to the foundation.
The encasement system illustrated in FIG. 42 is also amenable to various active configurations. In all such configurations, an inflatable volume 219, for example as illustrated in FIG. 42B, may be disposed on different surfaces of the encasement system as will be discussed below. There are various configurations of the active encasement system. Each of these configurations facilitates bed making and maneuvering of the mattress core or mattress assembly, which may consist of the mattress core 208 encased by the outer decorative encasement 206 and may include the outer cover 204, as discussed below.
In a first configuration, the inflatable volume 219 is integrally formed with a top surface 203 of the foundation 202. In this configuration, in an active mode of maneuvering, the external cover 204 is attached to the mattress assembly. When the inflatable volume 219 is inflated, the outer mattress assembly, including the external cover 204 can be easily maneuvered. In this configuration, the external pump 221 and air inlet are not attached to the external cover 204 but instead are attached to the foundation 202. In a normal mode of operation, the external cover 204 may be attached to the foundation 202 by the attachment devices 222, 224, 226, and 228 or alternatively one or both of the bottom surface 220 of the external cover 204 or the top surface 203 of the foundation 202 may be formed at least partially with non-slick surfaces. In configurations which include the attachment devices 222, 224, 226, 228, the mattress assembly adjacent to unsecured portions of the external cover 204 will be lifted to facilitate bed making. The external cover 204 may also be attached to the mattress assembly in the normal mode of operation. In this configuration, the inflatable volume 219 will lift the mattress assembly and the eternal cover 204 to facilitate both bed making and mattress maneuvering.
In alternate configuration, the inflatable volume may be attached to a bottom surface 220 or a top surface 216 of the external cover 204. In either of those configurations the external cover 204 may be attached to the foundation 202 or alternatively to the outer mattress assembly. This configuration facilitates bed making and mattress maneuvering.
The inflatable volume 219 may alternately be formed on the interior or exterior surface of the bottom panel 210 or the outer encasement 206. In this configuration 221, the air inlet is not attached to the external cover 204, as shown in FIG. 42, but rather is attached to the outer encasement 206. This configuration allows for mattress maneuvering as well as bed making. It is to be understood that although FIG. 42 illustrates an air pump 221 and an air inlet, these components are not necessary for passive maneuvering of the mattress assembly, illustrated in FIGS. 42-45.
Referring to FIG. 42, the inflatable volume 219 illustrates a center attachment point 221. It is to be understood that one or more attachment points can be used. It is also to be understood that the attachment point 221 may be a grommet, or stitch point or pattern, or other means which attaches the two sheets of material together that form the inflatable volume 219. These sheets may be either directly attached together as shown in FIG. 42B or alternatively attached so that the sheets are spaced apart. For example, the two sheets may be attached together with loops, strips of material, or attached together in other conventional or non-conventional ways or fasteners which allow the two sheets to be spaced apart during inflation and yet attached together. As shown in FIG. 42B, the attachment point 221 shows that the two sheets of material are directly attached together at one point.
FIG. 42C is similar to FIG. 42 but illustrates an embodiment for an adjustable foundation in which the outer cover includes one or more attachment points for mating with corresponding attachment points on an adjustable foundation.
With respect to the various embodiments illustrated in FIGS. 42-45, the inflatable volume 219 could have air exit holes (not shown). Air exit holes on the inflatable volumes 219 on the underside of the outer encasement 206 or on inflatable volumes 219 on a top side of the foundation 202 cause the outer mattress assembly to “ride” or hover over the foundation 202 in a maneuver mode to facilitate bed making and in a normal mode of operation, the outer mattress assembly rests on top of the foundation 202.
A second exemplary embodiment of the encasement system is illustrated in FIGS. 43, 43A and 43B. This embodiment includes an outer removable decorative encasement 278 that encases the mattress core 208 forming a mattress assembly 209 (FIG. 43A). The outer encasement 278 (FIG. 43) may be removably or permanently attached around the mattress core 208, similar to FIGS. 1E and 1F, or alternatively, be formed with a partially or totally removable top cover 274 and/or partially or totally removable bottom cover 276. This embodiment allows the outer mattress assembly to be maneuvered, actively or passively, with respect to the foundation 202. This embodiment also allows the mattress core 208 to be maneuvered with respect to the outer encasement 278.
This embodiment allows active and passive maneuvering of the outer mattress assembly. Passive maneuvering is discussed below in connection with FIG. 43A. Active maneuvering is discussed in connection with FIG. 43B.
With respect to passive maneuvering, various configurations are possible. In one configuration in which the mattress core 208 is maneuvered with respect to the outer encasement 278, one or both of the bottom surface 272 of the mattress core 208 or inner surface 280 of the outer encasement 278 may be formed with slick surfaces to enable the mattress core 208 to be maneuvered with respect to the outer encasement 278. In order to maneuver the mattress core 208 with respect to the outer decorative encasement 278, the removable top panel 274 is removed or at least partially detached to enable the side panels of the outer encasement 278 to be folded down to enable the mattress core 208 to be rotated or otherwise maneuvered by way of the slick surfaces on one or both of the bottom surface 272 of the mattress core 208 or inner surface 280 of the outer encasement 278. After the maneuvering is complete, the side panels of the outer encasement 278 are folded up and the removable top panel 274 is reconnected to the side panels.
The mattress assembly 209 consisting of the outer encasement 278 and the mattress core 208 may also be maneuvered with respect to the foundation 202. In this configuration, one or both of the bottom surface 280 of the outer decorative encasement 278 or a top surface 203 of the foundation may be formed with a slick surface to allow the mattress assembly 209 to be maneuvered with respect to the foundation 202. In this embodiment, once the mattress assembly 209 maneuvering is complete, the mattress assembly 209 is re-secured to the foundation 202 by way of the attachment points, discussed above.
In the embodiment illustrated in FIG. 43, active maneuvering is optionally available. FIG. 43B illustrates one embodiment of active maneuvering. In this embodiment, an inflatable volume 279 is attached to a bottom surface 280 of the outer decorative encasement 278. In addition, as shown in FIG. 43, an air pump 221 and air inlet is attached to or integrally formed to the inflatable volume 279. Alternatively, an inflatable volume 279 can be integrally formed in the top surface 203 of the foundation 202 or may be integrally formed on a fixed or adjustable foundation 202.
In order to activate the active mode, the air pump 221 (FIG. 43) is turned on to inflate the inflatable volume 279. Once inflated the mattress assembly 209 can be maneuvered. Once the mattress assembly 209 is in the desired position, the pump 221 is turned off.
In certain embodiments, the air pump 221 will be maneuvered along with the mattress assembly 209 during the maneuvering of the mattress assembly. For example, in embodiments where the inflatable volume 279 is integrally formed on a bottom surface 280 of the outer encasement 278, as shown in FIG. 43, the air pump 221 will be maneuvered along with the maneuvering of the mattress assembly 209. In other embodiments, for example, where the inflatable volume is integrally formed on a top surface 203 of the foundation 202, the air pump 221 will remain stationary when the mattress assembly 209 is maneuvered with respect to the foundation 202.
FIG. 43C is similar to FIG. 43 but illustrates an embodiment for an adjustable foundation in which the outer cover includes one or more attachment points for mating with corresponding attachment points on an adjustable foundation.
A third exemplary embodiment of the encasement system is illustrated in FIGS. 44, 44A and 44B. This embodiment includes an inner encasement 240, which encases a mattress core 208, and an outer encasement 246, which encases the inner encasement 246 and the mattress core 208. As used herein, the combination of the inner encasement 240 and the mattress core 208 is referred to as the inner mattress assembly.
The inner encasement 240 may be permanently or removably attached around the mattress core 208, similar to FIGS. 1e and 1f, or alternatively include a partially or totally removable top cover 243 and/or partially or totally removable bottom cover 244. This embodiment allows maneuvering, actively or passively, of the inner mattress assembly relative to the inner bottom surface 248 of the outer encasement 249.
The embodiment illustrated in FIG. 44 allows both active and passive maneuvering of the mattress core 208 with respect to the inner encasement 246. This embodiment also allows maneuvering, actively or passively, of the inner mattress assembly with respect to the outer encasement 249. Finally, the outer encasement 249, containing the inner mattress assembly may also be maneuvered, actively or passively, relative to the foundation 202.
Active and passive configurations are illustrated in FIGS. 44A and 44B respectively. There are various configurations of the active embodiments illustrated in FIG. 44B that are discussed below. The various configurations of the passive embodiments illustrated in FIG. 44A are also discussed below.
With respect to the passive embodiments, the mattress core 208 can be maneuvered with respect to the inner encasement 246. In this configuration, one or both of a bottom surface 205 of the mattress core 208 or an interior bottom surface 247 of the inner encasement 246 can be formed with a slick surface. In this configuration, the removable top panel, for example the removable top panel 243, is removed and the side panels 246 are folded down to allow the mattress core 208 to be maneuvered with respect to the inner encasement 246.
In another configuration, the inner mattress assembly can be maneuvered with respect to the outer encasement 249. In this embodiment, one or both of the bottom surface 244 of the inner encasement 246 and an interior bottom surface 248 of the outer decorative encasement 243 are formed with a slick surface. This configuration allows the inner mattress assembly to be maneuvered with respect to the outer encasement 249. In order to maneuver the inner mattress assembly with respect to the outer encasement 249, the removable panel 250 is removed and the side panels 254 are folded down The inner mattress assembly can then be maneuvered with respect to the outer decorative encasement 249.
FIG. 44 C is similar to FIG. 44 but illustrates an embodiment for an adjustable foundation in which the outer cover includes one or more attachment points for mating with corresponding attachment points on an adjustable foundation.
A fourth exemplary embodiment of the encasement system is illustrated in FIGS. 45, 45A, and 45B. This embodiment includes an inner 5-sided open-top cover 262 (also identified herein as an “inner cover”) which covers the underside of a mattress core 208, and an outer encasement 263, which encases the inner cover 262 and the mattress core 208.
As used herein, the inner cover 262 and the mattress core are also referred to as an “inner mattress assembly”. The inner cover 262 may be permanently or removably attached to the mattress core 208, and alternatively includes a partially or totally removable top panel (not shown) and/or partially or totally removable bottom panel. The inner cover 262 is formed with an open top, a bottom panel 273 and a plurality of side panels 266.
As discussed below, this embodiment allows maneuvering similar to the embodiment illustrated in FIGS. 44, 44A and 44B. In particular, the embodiment illustrated in FIG. 45 allows both active and passive maneuvering of the mattress core 208 with respect to the inner cover 262. This embodiment also allows maneuvering, actively or passively, of the inner mattress assembly with respect to the outer decorative encasement 263. Finally, the outer mattress encasement 263, containing the inner mattress assembly, may also be maneuvered, actively or passively, relative to the box spring, foundation or platform.
Active and passive configurations for this embodiment are illustrated in FIGS. 45A and 45B respectively. There are various configurations of the active embodiments illustrated in FIG. 45B that are discussed below. The various configurations of the passive embodiments illustrated in FIG. 45A are also discussed below.
With respect to the passive embodiments, as illustrated in FIG. 45A, the inner core 208 can be maneuvered with respect to the inner cover 262. In this configuration, one or both of a bottom surface 217 of the mattress core 208 or an interior bottom surface 273 of the inner cover 262 can be formed with a slick surface. In this configuration, a top panel 269 of an outer decorative encasement 263 is partially or totally removed to enable the side panels of the outer decorative encasement 263 to be folded down. Next, the side panels 266 of the cover 262 may be folded down to allow the mattress core 208 to be maneuvered with respect to the inner cover 262.
In another configuration, the inner mattress assembly can be maneuvered with respect to the outer decorative encasement 263. In this embodiment, one or both of the bottom surface 273 of the inner cover 262 and an interior bottom surface 271 of the outer decorative encasement 263 are formed with a slick surface.
In order to maneuver the inner mattress assembly relative to the outer decorative encasement 263, the side panels 267 of the outer decorative encasement 263 are folded down over the foundation 202 to enable the outer mattress assembly to be maneuvered with respect to the foundation 202. In this configuration, one or both of the bottom surface 267 of the outer decorative encasement 263 or a top surface 203 of the foundation 202 are formed with a slick surface. Once the outer mattress assembly is in the desired position with respect to the foundation 202, the optional attachment devices, discussed below, can be reattached between the foundation 202 and the underside of the outer decorative mattress encasement 263 to prevent unintended movement of the outer mattress assembly with respect to the foundation 202.
As mentioned above, active maneuvering is also contemplated for this embodiment, FIGS. 45 and 45B illustrate active embodiments. In this embodiment, an inflatable volume 312 (FIG. 45B) may be integrated into a bottom panel 265 (FIG. 45) of the outer decorative encasement 263. The interior bottom surface 271 of the outer decorative encasement 263 may be formed with a slick surface in order to also enable passive rotation of the inner mattress assembly relative to the outer decorative encasement 263, as discussed above. The active mode is as discussed above.
The various embodiments of the encasement system described above are amenable to being used on fixed foundations, box springs, or platforms and adjustable foundations or platforms. Exemplary fixed foundations are illustrated in FIGS. 42C-45C.
The various components mentioned above are described below. In particular, mattress cores 208 are well known in the art and may include one or more layers of so-called memory foam, as shown, or be constructed of conventional or non-conventional innerspring materials and components. In multi-layer embodiments of the mattress foam cores, one or more of the layers may have different levels of firmness to provide different levels of comfort from soft to hard.
The outer encasement 206 may be formed from conventional decorative material, for example, material normally used for factory installed mattress covers. The outer encasement 206 includes a bottom panel 210, a top panel 212 and a plurality of side panels, generally identified with the reference numeral 214. The bottom edges of the side panels 214 may be fixedly joined on end by conventional fastening means, such as by sewing to the bottom panel 210. A top edge of one of the side panels 214 may be fixedly attached to one edge of the top panel 212. The remaining side panels 214 may be removably attached to the other edges of the top panel 212, for example, by way of a conventional fastening means, such as a three sided zipper 215 (FIGS. 42A and 42B) or a Velcro® fastener forming a hinge. Alternatively, the zipper 215 may extend around four sides of the encasement to allow the top panel 212 (FIG. 42) to be completely removable.
The internal cover 262 and the external cover 204 may be formed, for example, as discussed below. In addition, the external cover 204 may optionally be formed with optional attachment mechanisms 222 and 224 for securing the external cover 204 and the mattress assembly to mating attachment mechanisms 226 and 228 on adjustable foundation 202. The attachment mechanisms 222, 224, 226 and 228 are known to be provided on foundations 202 configured as adjustable platforms.
Aftermarket Encasement Embodiments With reference to FIGS. 1A-41, various embodiments of an aftermarket encasement are illustrated and discussed below. As mentioned above, the various attributes of these aftermarket encasements are applicable to the factory installed encasement systems described above.
In a first embodiment of the aftermarket encasement, an inflatable volume is integrally formed in a bottom panel of the encasement. In a second embodiment of the invention the inflatable volume is integrally formed in a detachable separate cover. In a third embodiment, a separate cover is used with the first embodiment. All three embodiments are illustrated and described below. In a fourth embodiment, the encasement is formed with extended side panels that can be folded over to overlap the bottom panel and be attached thereto.
The first embodiment of the encasement includes an integral inflatable volume as illustrated in FIGS. 1A, 2, 2A, 3, 4, 8-11 and 29. The second embodiment of the invention is illustrated in FIGS. 1B and 22. FIG. 37 illustrates a separate cover which forms part of the third embodiment. In this embodiment, a separate cover, for example, an add-on device, is used with the encasement device illustrated in FIG. 1a providing an alternative method for rotating the mattress.
FIGS. 12-17a illustrate the installation of a first embodiment of an encasement. FIGS. 18-21 illustrate rotation of a mattress encased with a first embodiment. FIGS. 23 and 24 illustrate rotation of a mattress in accordance with the second embodiment, illustrated in FIG. 1b. FIGS. 38 and 39 illustrate rotation of a mattress in accordance with the third embodiment. FIGS. 37d and 37e illustrate a fourth embodiment of the encasement.
FIGS. 26-28 illustrate the ease of bed making using the invention. FIGS. 30-36 illustrate different methods of tightening the encasement relative to the mattress in a vertical direction. FIGS. 40 and 41 illustrate tightening of an encasement relative to a mattress in a horizontal direction. FIGS. 5, 6, 7, 8A, 9A and 10A illustrate different techniques for controlling the air flow from the inflatable volume.
The principles of the encasement set forth herein are applicable to various mattresses including box springs and mattresses supported by fixed foundations, such as box springs, as well as adjustable platforms, as illustrated in FIG. 29. As shown in FIG. 29, for example, the air pump 53 and conduit 49 are attached on one end of the encasement. However, it is to be understood that the nozzle and air pump can be connected anywhere on the inflatable volume.
FIGS. 1c and 1d illustrate optional features of the invention that may be incorporated into the encasements in the various embodiments of the invention, discussed above. Specifically, an optional air valve, such as a conventional valve, for example, a conventional plastic air valve 49 with an optional cap 51 attached thereto with a strap 53, may be integrated into the encasement 30. Specifically, the air valve 49 may be attached anywhere on the encasement 30 except for the inflatable volume. For example, plastic valve may be attached to the top panel 32 or bottom panel 34 or one of the side panels 36 or 38. The plastic valve 49 facilitates removing air from the encasement 30 so that the encasement 30 can be packed for travel for use on hotel and motel mattresses. The plastic valve 49 allows air to be removed to minimize the space the encasement 30 will take in a suitcase or travel bag. The air may be removed manually or mechanically, for example, by way of a vacuum cleaner.
After the encasement 30 is used on a hotel or motel mattress, it is preferable to zip up the encasement 30, remove the air, as discussed above, and transport the encasement in a zipped up condition until the encasement can be laundered. This is done to prevent mites, bed bugs, allergens, certain microbes, and the like from the hotel or motel mattress from being released in a suitcase or travel bag. A HEPA filter 55 (FIG. 1D) may be fixedly attached to an interior or exterior surface of the encasement 30, for example, the surface 46 as shown in FIG. 1d, to cover the airway of the valve 49 to prevent bed bugs or dust mites or bacteria or allergens picked up from the hotel or motel mattress from escaping through the air valve 49.
Alternatively, the air valve can be omitted and a small aperture formed anywhere on the encasement covered with a HEPA filter may be used. The HEPA filter 55 can also be used with the various adjustable air valves, for example, the air discharge valves 83 and 85, as illustrated in FIGS. 9a and 9b, as well as the air exit holes 67, illustrated in FIGS. 3 and 4, for example.
First Embodiment As mentioned above, a first embodiment of the invention which includes an integrally formed inflatable volume is illustrated in FIGS. 1a, 2, 2a, 3, 4, 8-10, 11 and 29. Referring first to FIG. 1A, the active encasement is shown and identified with the reference numeral 30. The encasement includes a top panel 32, a bottom panel 34 and four side panels, generally referred to with the reference numeral 36. One or more of the four side panels 36 include a zipper 40 or other conventional attachment means which define an upper side panel portion 42 and a lower side panel portion 44. In embodiments in which one, two or three side panels are zippered, the un-zippered side panel 38 may be formed as a single piece and connects the top panel 32 to the bottom panel 34 on the one side.
Alternatively, only one side panel of the encasement may be zippered, as illustrated in FIGS. 1E and 1F. Referring first to FIG. 1D, an embodiment is illustrated in which a short side panel of the encasement is zippered. FIG. 1F illustrates an embodiment in which a long side panel is zippered.
Referring back to FIG. 1A, the top and bottom panels 32 and 34 are generally rectangular in shape and are configured to fit the length and width of standard bed sizes. US standard mattress sizes are provided below in Table 1. It is to be noted that the principles of the invention are also applicable to non-US mattress sizes, as well as non-standard sizes. As will be discussed below, the principles of the invention also apply to mattresses having different depths, even so-called “deep pocket” mattresses.
TABLE 1
US Standard Mattress Sizes
Length × width Length × width
dimension dimension
Common Term in inches in centimeters
Twin 39 × 75 99 × 190
X-Long Twin 39 × 80 99 × 203
Full 54 × 75 137 × 190
Queen 60 × 80 153 × 203
King 76 × 80 198 × 203
California King 72 × 84 182 × 213
The encasement 30 provides the standard protection for a mattress from spills, allergens, parasites and/or stains but also provides additional features which relate to the management of the mattress, as discussed below. These features are provided by the novel construction of the encasement 30, as discussed below.
The bottom panel 34 is configured to facilitate various mattress management features without compromising the ability of the encasement 30 to provide protection from stains and parasites. Specifically, the bottom panel 34 includes an interior surface 46 and an exterior surface 48. The interior surface 46 is formed as a slick surface while the exterior surface 48 is formed with an integrally formed inflatable volume, generally identified with the reference numeral 48 from an at least partially non-slick material, generally identified with the reference numeral 47. In the first embodiment the non-slick material 47 helps provide a frictional grip between the encasement and the foundation or bed skirt while the mattress is being rotated and during installation or removal of the encasement, as discussed below.
Various materials can be used for the bottom panel 34 having a slick interior surface 46 and the non-slick material 47. All of these materials including the materials used for the balance of the encasement 30 may be launderable. As used herein, the terms “slick” and “non-slick” refer to their respective relative co-efficient of friction. In other words, the encasement disclosed herein contemplates materials in which the “slick” surface has a relatively lower co-efficient of friction than the “non-slick” surface. Exemplary materials are provided below. As used herein, the materials and or coatings may be formed as a single layer or multiple layers.
The non-slick exterior material 47 of the bottom panel can be created on one side of a slick material by way of a coating or sewing or fusing a non-slick backing to one side of the non-slick material. Other conventionally available materials are also suitable for the bottom panel 34 having a slick interior surface 46 and a non-slick exterior material 47. For example, 70 Denier Heat Sealable (backside) 100% Nylon Rip Stop material is suitable for use for the bottom panel 34 other materials with similar coefficients of friction with a coating on one side, for example, urethane, silicone, or coated or bonded or sewn or fused thermal plastic or heat sealable coatings. Alternatively, a non-slick material can be used for the bottom panel 47 with a slick coating or a fabric with a slick side and a non-slick side.
Such nylon or polyester rip stop material is known to come in widths of 32″-104″ inches wide and weigh about 0.9-4.4 ounces per square yard. Such material can easily be pieced together to accommodate various mattress widths if necessary. Nylon or polyester rip stop material suitable for use with the encasement disclosed herein is available from various sources, such as, Quest Outfitters of Sarasota, Fla. (questoutfitters.com). Their nylon taffeta material is described in detail at Questoutfitters.com/coated.html#HEAT_SEALABLE, hereby incorporated by reference. Suitable nylon or polyester taffeta material is also available from Rockywoods in Loveland, Colo. (rockywoods.com), Their nylon taffeta material is described in detail at rockywoods.com/Fabrics-Hardware-Patterns-Kits/Medium-Weight-Nylon-Fabrics/Heat-Sealable-70-Denier-Nylon-Taffeta, hereby incorporated by reference.
Non-woven materials may also be used for the bottom panel 34 having a slick side and a non-slick side. For example, Tyvek® polyethylene non-woven fabric, as manufactured by the DuPont Corporation and described in detail at 2.dupont.com/Products_and_Services/en_VN/nwn.html may be used Other materials having two slick sides can also be used, such as, silicone impregnated nylon rip stop, for example, as available from Seattle Fabrics, Inc., seattlefabrics.com/nylons.html. Other materials can also be used with a coating applied to one side. Moreover, different materials can be used for each cover in an application.
Various other materials with a slick side and a non-slick side are also suitable for the bottom panel 34. For example, the following exemplary materials may be used:
-
- Warp-knit fabric with a polyurethane laminate coating or a silicone coating.
- A non-woven material with a polyurethane laminate coating or a silicone coating.
- Tricot fabric with a polyurethane backing or a silicone coating
- Neoprene fabric with a polyurethane backing or a silicone coating.
- Ballistic nylon or polyester fabric with polyurethane backing or a silicone coating.
- Polyester knit fabric with polyurethane backing or a silicone coating.
- Cotton/polyester terry fabric with a polyurethane backing or a silicone coating.
- Jacquard knit fabric with polyurethane backing or a silicone coating.
- Coral fleece fabric with a polyurethane backing or a silicone coating.
- Microfiber/polyester knit with polyurethane backing or a silicone coating.
- A stitch bond fabric with a polyurethane laminate coating or a silicone coating.
- Nylon or polyester rip stop with a silicone coating on one side and a polyurethane coating on the other side
- Typical nylon or polyester ripstop with a silicone coating on one side and a polyurethane coating on the other side
- Woven or non-woven fiberglass fabric with a silicone coating on one side and a polyurethane coating on the other side
- A stitch bond fabric, available from Tietex, item no 944164, style no. C243, wherein the fabric is 32% rayon, 22% polyester, 6% twaron and 40% coat.
- Calendared nylon or polyester rip stop with a silicone coating on one side and a polyurethane coating on the other side
- Calendared nylon or polyester taffeta with a silicone coating on one side and a polyurethane coating on the other side
- Calendared suitable fabric with a silicone coating on one side and a polyurethane coating on the other side
- Nylon or polyester rip stop with a silicone coating on one side and uncoated on the other side
- Nylon or polyester rip stop with a polyurethane coating on the other side and no coating on the other side
- Crypton fabric with a silicone coating on one side and uncoated on the other side
- Crypton fabric with a polyurethane coating on the other side and no coating on the other side
- Polyester fabric with a silicone coating on one side and uncoated on the other side
- Polyester fabric with a polyurethane coating on the other side and no coating on the other side
- Tencel fabric with a silicone coating on one side and uncoated on the other side
- Tencel fabric with a polyurethane coating on the other side and no coating on the other side
Materials having a similar co-efficient of friction may also be used. All such materials are considered to be within the broad scope of the invention.
The following textile materials may also be used for the various surfaces discussed above. These textile materials can be used uncoated or coated on one or both sides as indicated below to control the co-efficient of friction to create a slick surface or a non-slick surface relative to the co-efficient of friction on the opposite side.
70 DENIER X 70 DENIER NYLON RIP STOP
70 DENIER X 70 DENIER POLYESTER RIP STOP
70 DENIER NYLON & POLYESTER BLEND
70 DENIER NYLON TAFFETA
70 DENIER POLYESTER TAFFETA
30 DENIER POLYESTER OR NYLON RIP STOP OR TAFFETA
210 DENIER OXFORD NYLON
210 DENIER OXFORM POLYESTER
210 DENIER NYLON & POLYESTER BLEND
NEOPRENE
BALLISTIC NYLON OR POLYESTER OR POLYESTER BLEND
WARP-KNIT FABRIC
POLYVINYL CHLORIDE (PVC)
POLYETHYLENE SHEETING
POLYPROPYLENE SHEETING
NON-WOVEN FABRIC
OLEFIN
POLYOLEFIN
POLYETHYLENE (PE, LLDPE, HDPE)
STITCH-BOND FABRIC
COTTON BLEND
TERRY MATERIAL
TRICOT
NYLON COATED MATERIAL
POLYESTER COATED MATERIAL
PRESSURE SENSITIVE BACKED MATERIAL
LAMINATED MATERIAL
HIGH DENSITY & MOLECULAR WEIGHT POLYETHYLENE FILM
POLYETHYLENE VINYL ACETATE
TENCEL FABRIC
CRYPTON FABRIC
JERSEY KNIT FABRIC
STRETCH POLYESTER KNIT
STRETCH POLYESTER KNIT BLENDS
STRETCH POLYESTER KNIT WITH ELASTANE
STRETCH POLYESTER KNIT WITH SPANDEX
POLYESTER NYLON BLENDS
POLYESTER NYLON ELASTANE BLENDS
PLYESTER NYLON SPANDEX BLENDS
FABRIC WITH CERTAIN METALS WOVEN INTO THEM FOR
THERAPEUTIC OR ANTIBACTERIAL OR EMF DAMPENING
PROPERTIES, SUCH AS COPPER, NICKEL, OR SILVER
The following materials may be coated, laminated, bonded, impregnated, embossed, fused, layered between, or backed onto a side of the textile material(s) to provide a relatively high co-efficient of friction and thus may be used to provide a relatively non-slick surface, relative to the opposite side.
POLYURETHANE
POLYVINYL CHLORIDE (PVC)
POLYETHYLENE VINYL ACETATE
THERMO PLASTIC
RUBBER
HEAT SEALABLE
WATER REPELLENT
ACRYLIC
ADHESIVE
UNCOATED or utilizing the inherently low friction coefficient of an uncoated fabric
FOAM
SILICONE
BLENDED POLYMER
NYLON
POLYESTER
THERMOPLASTIC ELASTOMER (TPE)
TEFLON
THERMOPLASTIC POLYURETHANE
BLENDED COATING OF ANY OF THE ABOVE
The following materials may be coated, laminated, bonded, impregnated, embossed, fused, layered between, or backed onto a side of the textile material(s) to provide a relatively low co-efficient of friction and thus may be used to provide a relatively slick surface, relative to the opposite side,
SILICONE
TEFLON
PETROLEUM BASE
POLYURETHANE
DIRT WEAR RESISTANT
HEAT SEALABLE
SLICK FIBER WOVEN INTO FABRIC
UNCOATED or utilizing the inherently low friction coefficient of an uncoated fabric
BLENDED POLYMERS
NYLON
POLYESTER
THERMOPLASTIC ELASTOMER
POLYETHYLENE VINYL ACETATE
BLENDED COATING OF ANY OF THE ABOVE
THERMOPLASTIC POLYURETHANE
The top panel 32 defines an interior surface 52 and an exterior surface 50. The interior surface 52 is formed with a waterproof coating or membrane, for example, polyurethane or other conventional waterproof coating. The exterior surface 50 is formed from cotton or other common encasement material or a material commonly used for mattress protectors, as well as conventional bedding or launderable material, such as polyester or a polyester-cotton. The waterproof membrane may be coated on one side of the upper panel 32.
Various other materials can be used which are waterproof and/or spill proof and/or, moisture proof and/or anti-bacterial and/or anti-allergen and/or anti-microbial and/or anti-mite and/or bed bug proof. For example, a bamboo knit fabric with a TPU or PU lamination. Bamboo is naturally occurring anti-bacterial material. The TPU or PU lamination provides waterproofing and anti-allergen, anti-dust-mite, and anti-bed bug protection. Other fabrics with a nano-silver finish with a TPU or PU coating. The Nano-silver finish is a non-allergic material. These materials can be used alone or in combination with other materials disclosed herein.
Various configurations for the side panels 36 and 38 are contemplated. For example, the side panels 36 and 38 may be formed from the same material as the bottom panel 34 or the top panel 32 or alternatively from other materials, such as permanent conventional or non-conventional bedding materials, for providing stain and/or allergen and/or parasite protection. The side panel 38 may be integrally formed with the top panel 32 and/or the bottom panel 34 or attached thereto by permanent conventional and/or non-conventional means, such as by sewing and/or RF welding and/or heat sealing and/or dielectric sealing and/or welding and/or ultrasonic sealing and/or heat sealing and/or bonding and/or utilizing adhesive and/or or weaving. The split side panels 36 may be formed from the same material as the bottom panel 34 or top panel 32. The side panels 36 are formed with an upper portion 42 and a lower portion 44 that are joined together by a zipper 40. The upper and lower portions 42 and 44, respectively, may be formed as a continuous strip that serves one or more side panels 36. The upper portions are attached to the top panel 32 by permanent conventional means, such as by sewing and/or RF welding and/or heat sealing and/or dielectric sealing and/or welding and/or ultrasonic sealing and/or heat sealing and/or bonding and/or utilizing adhesive and/or or weaving. The lower portion is similarly attached to the bottom panel 34. The upper and lower portions 44 and 42, respectively, may be formed as part of the upper and lower panels 32 and 34, respectively. The zipper 40 may be attached to the upper portion 42 and the lower portion 44 of the side panels 36 by permanent conventional means, such as sewing and/or RF welding and/or heat sealing and/or dielectric sealing and/or welding and/or ultrasonic sealing and/or heat sealing and/or bonding and/or utilizing adhesive and/or or weaving.
In order to facilitate installation of the encasement 30 on a mattress or foundation, a zipper 40 is provided from corner to corner, for example, on each of the zippered sides 36. The zipper 40 may be a conventional zipper that extends from one corner 54 on one side to the corner 56 on the third side, as illustrated in FIGS. 2 and 2a. The zipper 40 may be attached to the sides 36 by permanent conventional and/or non-conventional means, such as by sewing and/or RF welding and/or heat sealing and/or dielectric sealing and/or welding and/or ultrasonic sealing and/or heat sealing and/or bonding and/or utilizing adhesive and/or or weaving and any conventional means. As will be discussed in more detail below, the configuration of the zipper 40 facilitates installation of the encasement and also facilitates maneuvering of the mattress. As mentioned above, the upper and lower panels may be oversized and used without discrete side panels.
FIGS. 3 and 4 illustrate a mattress encased with different embodiments of an active encasement with an integral inflatable volume 63. Both embodiments illustrate an encased mattress 30 removed from a foundation 60 covered by a bed skirt 62. The inflatable volume 63 may be configured in various shapes and may include a conduit 49 and an air inlet nozzle 51. The air inlet nozzle 51 and the conduit 49 allow air from an external air supply 53 (FIG. 5) to be delivered to the inflatable volume 63. As best illustrated in FIG. 11, in both embodiments of the invention, the inflatable volume 48 is formed with a piece of material 53 attached to the bottom surface 47 of the bottom panel 34 by various methods, for example, as disclosed in U.S. Pat. No. 8,246,706, hereby incorporated by reference. One or more air exit holes, i.e., non-adjustable air valves, generally referred to with the reference numeral 67, may be provided as well as one or more grommets or attachment points 65. As shown best in FIG. 11, the grommet or attachment point 65 is used to attach the material layer 53 to the bottom panel 34 in one location. It is contemplated that the grommet 65 may be omitted and alternatively multiple grommets or attachment points may be provided. The grommets 65 may be used to provide stability when the inflatable volume 63 is inflated.
As shown in FIG. 11, the arrows 71, 73 and 79 indicate the direction of the air flow into the inflatable volume 48. The arrows 75 and 77 illustrate the air being discharged from the air holes 67. The air being discharged from the air holes 67. The difference in air pressure between the air coming into the inflatable volume and air exiting the inflatable volume creates a lift to cause the mattress to lift relative to the foundation, as indicated by the lift arrows 87.
More specifically, the lifting force provided is directly proportional to the input air pressure to the inflatable volume relative to the air pressure exiting the inflatable volume multiplied by the area of the mattress. The lifting force directly opposes the downward force of the mattress due to weight of the mattress due to gravity. As such, the amount of lift of the mattress can be varied by varying the pressure of the air exiting the air discharge holes 67 and/or by way of the adjustable valves.
Various techniques are available for varying the pressure of the air exiting the air discharge holes 67. All but one of the techniques discussed below illustrate adjustable type devices in which the air pressure can be manually adjusted. One method of varying the pressure is illustrated in FIGS. 5-7. In this method, the pressure is varied by way of an air discharge valve 81 disposed in series with the conduit 49 from the air supply pump 53. Opening the air discharge valve 81 bleeds off air pressure from the air supply pump 53, thus supplying lower pressure air to the inflatable volume 63 (FIG. 11), thereby creating relatively less lift.
FIGS. 8, 8A, 9 and 9A illustrate alternate optional adjustable air valves for varying the air pressure. FIGS. 8 and 8a illustrate the use of a zipper 83 which may be integrated on the material layer 53 (FIG. 11) as illustrated in FIG. 8. Similarly, FIGS. 9 and 9A illustrate an alternate type of valve 85 which may be juxtaposed on the material layer 53 (FIG. 11) as illustrated in FIG. 9.
FIGS. 10 and 10A illustrate a non-adjustable method of controlling the pressure of the air exiting the inflatable volume 48. In this embodiment, the pressure is controlled by selecting a material with a porosity that provides the desired air pressure.
Of course, the pressure inside the inflatable volume can be controlled with one or more air discharge holes 67 (FIG. 11) in combination with one or more of the techniques discussed above. Alternatively, one or more of the techniques discussed above can be used to control the pressure inside the inflatable volume 48. All of such permutations and combinations are contemplated to be within the broad scope of the invention. Moreover, the principles of the encasement disclosed herein apply to embodiments with and without grommet(s) or attachment point(s) 65.
In accordance with another aspect of the invention, the encasement 30 (FIG. 1A) can be configured so that the size of the bottom portion of the encasement 30 is standard for all encasement depths. In this embodiment, the size of the top portion of the encasement 30 is formed to accommodate various encasement depths. In such an embodiment, the encasement 30 may be zippered on all four sides. The top portion includes the top panel 32 and the upper portions 42 of all four side panels 36. The bottom portion includes the bottom panel 34 and the lower portions 44 of all four side panels 36. In this embodiment, the transverse length (normal to the longitudinal length) of the upper portion 42 and the lower portion 44 of the side panels are not equal. The transverse length of the lower portion 44 of the side panel 36 may be set to a standard value. In order to accommodate encasements of different depths, the transverse length of the upper portions 42 of the side panels may vary as function of the overall depth of the encasement.
For example, a bottom portion of the encasement with a transverse length of 4 inches may be used with 8 inch and 10 inch encasements. For a mattress encasement with an 8-inch depth, an upper portion 42 with a 4-inch transverse length is used along with the 4-inch lower portion 44. For a 10-inch encasement, an upper portion 42 with a 6-inch transverse length is used along with the 4 in lower portion 44. Thus, the bottom portion of the encasement 30 may be standardized for different encasement depths.
Installation of Bed Skirt and Encasement In accordance with one aspect of the invention, FIGS. 12-17A illustrate the installation of a bed skirt 62 over a foundation 60 and the installation of an encasement 30 over the bed skirt 62 carried by the foundation 60. Unlike known encasements, installation and removal of the encasement 30 does not require extensive lifting or flipping of the mattress 58, as discussed above. In addition to facilitating installation and removal of the encasement over a mattress 58 or bed skirt 62, the encasement 30 provides various mattress management features, such as:
-
- Holding a bed skirt 62 in place while the encasement 30 is being installed on the mattress 58.
- Holding a bed skirt 62 in place while the mattress 58 is being rotated.
- Enabling the mattress 58 to be more easily rotated without lifting the mattress 58.
- Enabling the mattress 58 to be easily installed or removed to change and/or launder the bed skirt or the encasement.
Turning first to FIG. 12, the mattress 58 is slid off the foundation 60 and stood on one end, as illustrated. If desired, a bed skirt 62 may be installed or removed over the foundation 60. An important aspect of the invention is that the encasement 30 will hold the optional bed skirt 62 in place while the encasement 30 is being removed from or installed over the mattress 58. Once the bed skirt 62 is installed as illustrated in FIG. 13, the encasement 30 is placed over the bed skirt 62. As shown in FIG. 14, the encasement 30 is completely unzipped and the top cover 32 is disposed on the floor adjacent one end of the mattress 58.
As shown in FIG. 14, the bottom portions 44 of the side panels 36 are resting on top of the slick interior surface 46 of the bottom panel 34. Prior to sliding the mattress 58 in place, lower portions 44 of the side panels 36 are folded down over the bed skirt 62 or alternatively, the foundation 60. Once the bottom portions 44 of the side panels 36 are completely folded down, the mattress 58 is slid in place over the interior surface 46 of the bottom panel 34 of the encasement 30, as illustrated in FIG. 15. The interior surface 46 of the bottom panel 34 is formed with a slick surface to facilitate sliding the mattress 58 into place. The exterior material 47 of the bottom panel 34 holds the encasement 30 in place over the bed skirt 62 or foundation 60 while the mattress 58 is being slid in place.
Once the mattress 58 is in place, the top panel 32 of the encasement is placed over the top of the mattress 58, as shown in FIG. 16. The encasement 30 is then zipped up by way of the zipper 40, as shown in FIG. 17.
Mattress Maneuvering First Embodiment FIGS. 18-21 illustrate a novel method of mattress management which relates to maneuvering a mattress 58 with an encasement 30. As mentioned above, mattresses can be relatively heavy and difficult to rotate. Moreover, an encasement covers up the mattress handles making it even more difficult to rotate the mattress. The novel method for rotating a mattress with an encasement overcomes these problems.
Initially, as shown in FIG. 18, the zipper 40 is unzipped around all three sides 36. Once the zipper 40 is unzipped, the top panel 32 is draped on the floor on one end, as shown in FIG. 19. Next, as illustrated in FIG. 20, the lower portions 44 of the side panels 36 (FIG. 19) are folded over the sides of the bed skirt 62 or alternatively the sides of the foundation in applications where a bed skirt 62 is not used. Once the lower portions 44 of the side panels 36 are all folded down, the mattress 58 can be rotated, for example, 180 degrees, in a horizontal plane, as generally illustrated in FIG. 21. This is done to even out mattress wear and body impressions or indentations. In this application, the mattress handles (not shown) are exposed to facilitate rotation. The slick interior surface 46 (FIG. 1a) of the bottom panel 34 facilitates rotation while the non-slick exterior surface 48 of the bottom panel 34 holds the bottom panel 34 in place against the bed skirt 62 or alternatively, the foundation 60.
Once the mattress 58 is rotated in place, the top cover 32 is placed over the mattress 58, as shown in FIG. 16. The encasement 30 is then zipped up by way of the zipper 40, as shown in FIG. 17.
Second Embodiment In an alternate embodiment of the invention, the inflatable volume 163 is formed as part of a separate cover 166 (FIG. 1B). In this embodiment, the encasement 130 is similar to the encasement 30 (FIG. 1A) except the encasement 130 does not include an inflatable volume integrally formed on the exterior surface of the bottom panel 34. Rather, in this embodiment, the exterior surface 147 of the bottom panel 134 of the encasement 130 may be formed at least partially as a slick surface or inherent coefficient of friction of mattress bottom, coated or uncoated.
The cover 166 includes a generally rectangular panel 168 optionally configured to attach to the bottom panel 134 of the encasement 30 and four (4) side panels generally identified with the reference numeral 170, which may be formed from a stretchable material. An inflatable volume 163 including a conduit 171 and an air intake nozzle 172 are formed on an exterior surface 174 of the rectangular panel 168. The cover 166 including the rectangular panel 168, the side panels 170 and the inflatable volume 148 may be configured, for example, as set forth above and disclosed in U.S. Pat. No. 8,246,706, hereby incorporated by reference, except as noted below. An interior surface 176 of the rectangular panel 168 is formed as a slick surface that is configured to cooperate with the slick surface 147 formed on the exterior of the bottom panel 134 of the encasement 130. In addition, the side panels 170 may be made from an elastic material, as set forth in the '706 patent or alternatively a non-elastic material. The inflatable volume 163 including any exposed exterior surface 174 of the rectangular panel 138 may be formed as a non-slick surface as defined herein.
Alternatively, the cover 166 (FIG. 1B) as well as the cover 200 (FIG. 37) may be formed from a single bottom panel with no side panels and attached to the encasement 130 with conventional fasteners or not attached at all. The cover 166 includes an inflatable volume, while the cover 200 does not. In these configurations, the panels 166, 200 may be attached by conventional means, such as Velcro, hook and loop, straps and/or buckle, buttons, snaps, zippers or other conventional fasteners as illustrated in FIGS. 31-37, 40 and 41. As used herein, the terms “attach” or “attached” means the side panels of the cover 166 (FIG. 1b) are juxtaposed over the sides of the encasement 130 or foundation 60 or bed skirt 62. Alternatively, “attach” or “attached” means attached by way of conventional fasteners, for example, as described herein.
The cover 166 and the encasement 130 may include conventional or non-conventional attachment means for attaching the cover 166 to the bottom panel 134 of the encasement 130 so that the slick surface 176 of the panel 168 engages and is in contact with the slick exterior surface 147 of the encasement 130. Virtually any type of attachment means is suitable, such as snaps, buckles, Velcro attachment or other conventional or non-conventional means are suitable for attaching the cover 166 to the encasement 130.
Mattress Maneuvering Second Embodiment In a normal mode of operation (FIG. 24), the cover 166 (FIG. 1B) is attached to the encasement 130 so that the inflatable volume 163 is in contact with the bed skirt 62 or foundation 60 and the slick surface 176 (FIG. 1B) of the cover 166 is in contact with the bottom surface 147 of the encasement 130. In this mode of operation, the side panels 170 of the cover 166 may be configured to hide the zipper 140 on the encasement 130. Since the bottom non-slick surface 174 of the cover 166 is in contact with the foundation 60 or bed skirt 62, it will provide a friction grip to hold the encased mattress 130 in place with respect to the foundation 60 of bed skirt 62.
In order to rotate the mattress 58, as shown in FIGS. 22-24, without removing the encasement 130, the cover 166 or the alternate cover consisting of a bottom panel with no side panels, is detached from the mattress 58 and the encasement 130 and folded down or juxtaposed over the foundation 60 or bed skirt 62 defining a rotate mode of operation, as illustrated in FIG. 22. In this mode of operation, the slick surface 176 of the cover 166 will be in contact with the bottom panel 134 of the encasement 130. The encased mattress 58 can then be rotated in a horizontal plane, as illustrated in FIG. 23, without removing the encasement 130 from the mattress 58. After the mattress 58 is rotated, the cover 166 may be removed from the foundation 60 or bed skirt 62 and attached to the encasement 130.
Third Embodiment The third embodiment includes an encasement 130, as illustrated in FIG. 1a and a separate cover 200. In this embodiment of the invention, an encased mattress 58 can be rotated with an encasement 130, as illustrated in FIG. 1a, without removing the encasement 130. In this embodiment, a separate cover, for example, a cover like the covers 20, 22, described in detail in US Patent Application Publication No. 2013/0212809 A1, hereby incorporated by reference, may be provided, for example, as an add-on device for the encasement 130, as illustrated in FIG. 1A. The cover 200 (FIG. 37) includes generally rectangular panel with a non-slick surface 202 on one side and a slick surface 204 on an opposing side and may include four side panels 206.
An alternate embodiment of the cover 200 is illustrated in FIG. 1 and identified with the reference numeral 201. In this embodiment, the cover 201 includes a rectangular panel 203 and four (4) side panels 206. As shown best in FIG. 37A, the side panels 206 are extended and are folded over so as to overlap the underside of the rectangular panel 203. In this embodiment, the rectangular panel 203 may be made from a homogeneous material with no coatings in which both sides are slick. Alternatively, the rectangular panel 203 can include a slick or non-slick coating on one side or be made from a slick or non-slick material. Similarly, the side panels 206 may be made from another homogeneous material with no coatings in which both sides are non-slick. Alternatively, the side panels 206 can include or non-slick coatings and may be made from slick or non-slick material. The overlapping side panels 206 are fastened to the underside of the rectangular panel 203 by stitching or other permanent conventional means. By eliminating fabric coatings, the cover 201 can be made much less expensively than the cover 200. The cover 200 may alternatively include an inflatable volume similar to the cover 166 (FIG. 1B).
Mattress Maneuvering Third Embodiment In a normal mode of operation (FIG. 39), the cover 200 is attached to the outside of the encasement 130 so that the non-slick surface 202 is in contact with the foundation 60 or bed skirt 62 and the slick surface 204 is in contact with the bottom surface of the encasement 130. In a rotate mode of operation (FIG. 38), the cover 200 is detached from the encasement 130 and attached or juxtaposed over the foundation 60 or bed skirt 62. In this configuration the bottom surface of the inflatable volume 63 is in contact with the slick surface 204 of the cover 200. After the mattress 58 is rotated in a normal position, the cover 200 can be reattached to the encasement 130.
Mattress rotation with the cover 201, illustrated in FIGS. 37A, 37B and 37C, is the same as with the cover 200, illustrated in FIG. 39. FIG. 37A illustrates the cover 201 in a normal mode of operation. In this mode of operation, the cover 201 is attached to the underside of the encasement 130. As shown best in FIG. 37a, the non-slick extensions 207 of the side panels 206 on the underside of the rectangular panel 203 will be in contact with the foundation 60 or bed skirt 62. In a rotate mode of operation, the cover 201 is folded down and attached to the foundation 60 or bed skirt 62, as illustrated in FIG. 37B. In this mode of operation, a slick surface of the cover 201 will be in contact with the underside of the encasement 130 (FIG. 1A), which may be formed with a slick surface. In this configuration, the surface of the inflatable volume 63 will be in contact with the slick surface of the cover 201 facilitating rotation.
Fourth Embodiment FIGS. 37d and 37e illustrate a fourth embodiment of the invention. In this embodiment, similar to the embodiment illustrated in FIGS. 37A-37C, is configured to reduce the need for coatings on the material. Referring to FIG. 37D, an encasement 230 is illustrated. The encasement 230 is similar to the encasement 130 (FIG. 1B) and is configured to be used with a separate cover with an inflatable volume, such as the cover 166, illustrated in FIG. 1B, or the cover (FIG. 37A). Alternatively, the encasement 230 may have an integral inflatable volume similar to FIG. 1A.
This embodiment includes a top cover 232, side covers 236 and a zipper 240, as well as a bottom panel 247. Except for the bottom panel 247, the encasement 230 is similar to the encasement 130, illustrated in FIG. 1B. In this embodiment, the bottom panel 247 may be formed from a homogeneous material with no coatings having slick surfaces on both sides. As shown best in FIG. 37D, the side panels 236 are formed to be extended so that the extensions 249 can be folded down over to overlap the underside of the bottom cover 247 and attached thereto by stitching or other permanent conventional means. In this embodiment, the side panels 236 are formed from a non-slick material, and may reduce the need to provide any coatings on the bottom panel 247.
Bed Making The inflatable volume 63 (FIG. 1A) facilitates bed making, as illustrated in FIGS. 25-28. In particular, with reference to FIG. 25, the inflatable volume 63 is able to lift the mattress 58 with respect to the foundation 60 or bed skirt 62 to facilitate bed making. In a normal mode of operation, the air supply 53 is off and the encased mattress 58 sits firmly on the foundation 60 or bed skirt 62. When the air supply 53 is turned on the encased mattress 58 is lifted, as illustrated in FIG. 25-28. In particular, in response to air from the air supply 53 moving into the inflatable volume 63, as indicated by the in-flow arrows 252, this causes the optional inflatable volume 63 to expand, thus lifting the encased mattress 58, as shown and indicated by the lift arrows 253. Excess air is continuously vented through the adjustable or non-adjustable air valves.
FIGS. 26-28 illustrate the bed making process. Referring first to FIG. 26, a mattress 58 with an encasement 30 is shown supported by a foundation 60 with optional bed skirt 62. As shown in FIGS. 26-28, once the air supply 53 is turned on in an active mode, the encased mattress 58 is lifted, as discussed above, allowing a flat sheet 175 to be tucked between the encased mattress 58 and the foundation 60 or bed skirt 62, as best shown in FIG. 28, thus facilitating making of the bed without requiring excessive lifting of the mattress 58.
In embodiments, as illustrated in FIGS. 37A-37C, the side panel extensions 207 (FIG. 37A) may be formed from a slick material or material with a slick coating to facilitate tucking the sheets between the mattress 58 and a foundation 60 or platform.
One Size Fits all As mentioned above, although the length and width dimensions of mattresses are standard, the depth dimensions vary considerably. In order to reduce the number of encasements that need to be manufactured, encasements are known to be manufactured to accommodate several depths for each mattress standard length and width size. A few commonly available encasements have depth ranges as set forth below.
-
- 6-9″ depth
- 7-12″ depth
- 9-12″ depth
- 11-18″ depth
Unfortunately, depending on the actual mattress depth, such encasements do not provide a snug fit. For example, a 6-inch depth mattress will not fit very snug in an encasement made to fit mattresses 6 to 9 inches thick.
In order to provide a snug fit for encasements relative to the depth of mattresses and foundations, exemplary optional adjustable devices, for example, straps 72-82 are illustrated in FIGS. 31-37, respectively. Other adjustable devices are suitable. These adjustment devices may be connected between the upper portion 42 and the lower portion 44 of the side panels 36, as shown in FIG. 30. The adjustment devices may also be provided on the fixed side or un-zippered panel 38 (FIG. 1) to allow the encasement 30 to be snugged up against the mattress. In addition, the side panels 36 and 38 may be pleated to allow the excess portions to be neatly folded.
The straps illustrated in FIGS. 31-36 may be incorporated with conventional and non-conventional encasements or alternatively in combination with the novel encasements illustrated and described herein. These adjustment devices may also be used to attach the cover 166 (FIG. 1B) or cover 200 (FIG. 37) to the encasement 30 (FIG. 1A) or encasement 130 (FIG. 1B). All of such embodiments are contemplated for use by the encasement disclosed herein.
FIG. 40 illustrates optional horizontal adjustment devices, configured as straps, generally identified with the reference numeral 86. These horizontal straps 86 can be used to snug the encasement 30, 130 with respect to the mattress 58 in a horizontal direction. The straps 86 may be disposed below the zipper 40. As shown, Velcro® cinch type straps may be provided. Other adjustment devices are contemplated for tightening the encasement 30, 130 relative to the mattress 58. For example, the straps 72-82, discussed above, as well as buttonholes and buttons, or other conventional adjustment devices may be used. It is also contemplated that combinations of vertical and horizontal adjustment devices can be used.
FIG. 41 illustrates and alternate embodiment of the horizontal adjustment devices 86 in FIG. 40. In this embodiment, a ring 88 is provided to enable the strap 86 to be looped there through and tightened. Both embodiments, illustrated in FIGS. 40 and 41 may be used as horizontal adjustment devices, as shown, and/or vertical adjustment devices.
Additional Embodiments Additional embodiments are illustrated in FIGS. 46A-46C, 47-63, 64A-64C, 65-85, 86A-86D and 87-106.
FIGS. 46A, 46C, 47, 48 and 49 disclose an embodiment of an encasement for a foam mattress core, generally identified with the reference numeral 320, which includes a top cover 322 and a bottom cover 324, for example, decorative covers. Each cover 322, 324 may be removably attachable to a band 326, for example, a center band, by way of, for example, a pair of separate 180 degree zippers 328, 330 (FIGS. 46C and 49) or other conventional fasteners. The upper cover 322 and the lower cover 324 are used to encase the mattress core (not shown). The band 326 may be provided with the core or one of the covers 322, 324.
In order to provide passive rotation, a top surface 216 (FIG. 47) of the bottom cover 324 may be formed as a slick surface by way of an inherent or slick fabric layer over the foam core to allow the foam core and the upper cover 322 to rotate 180 degrees. The zippers 328, 330 attaching the top cover 322 and the bottom cover 324 to the band 326 are 180 degree zippers that allow the covers 322, 324 to be re-attached after rotation of the top cover 322 with respect to the bottom cover 324. By rotating the mattress, the life of the mattress can be increased up to double its life without rotation.
FIG. 50 illustrates an aftermarket active embodiment of the encasement illustrated in FIGS. 46A, 46B, 48 and 49. In this embodiment, the top cover 322 may be replaced with a new top cover 322′ and attached to the band 326 by way of the top set of zippers 328, 330 (FIG. 49). A bottom cover 336 replaces the bottom cover 324 and includes an inflatable volume, as discussed above and is in flow communication with an external air pump 221. A top edge of the bottom cover 336 is provided with a pair of 180 degree zippers in order to match up with the 180 degree zippers on the band 326. In order to account for the expansion of the inflatable volume, buttons 339 are provided on the core or the band 326. These buttons 339 are received in button holes 340 which include vertical slots aligned with the button hole 340. The slots allow the bottom panel and integrated inflatable volume to move away from the bottom surface 341 of the core when the inflatable volume is inflated.
FIGS. 51 and 52 illustrate alternate embodiments of the active bottom cover 336 illustrated in FIG. 50, FIG. 51 is a sectional view of an alternate embodiment of the bottom encasement cover 336 that includes a separate outer flip cover. FIG. 52 is similar to FIG. 51 but includes a separate inner flip cover.
Referring first to FIG. 51, an active bottom cover is illustrated that is configured as bottom panel with an integrated inflatable volume. A soft hose 354 is built into sides of the cover 352 and is connected to one end of the inflatable volume. A pump 321 is attached to the hose 354. In this mode, the pump 321 is turned on to facilitate rotation of the mattress core.
In an active mode, the pump 321 is turned on to inflate the inflatable volume which levitates the mattress core to enable the desired maneuvering. The mattress core can then be maneuvered. Once the mattress core is in the desired position, the pump 321 is turned off.
FIG. 52 illustrates an alternate embodiment that is similar to the embodiment illustrated in FIG. 51. In this embodiment, a cover 360 includes an inflatable volume 362. The inflatable volume 362 is attached to an external pump 321. In an active mode, the inflatable volume is inflated by the pump 321. The mattress core is then rotated with respect to the foundation. After the mattress core is in the desired position, the pump 321 is turned off.
FIGS. 53-55 illustrate alternate embodiments of the encasement. These embodiments do not include a center band 326. Referring first to FIG. 53 first, an encasement for a mattress core (not shown) includes a top removable cover 370 and a bottom removable cover 372. The covers 370, 372 are zippered together an all four sides, for example, by way of a pair of zippers, as illustrated in FIG. 49, to enable the top 370 and bottom 372 covers to be completely removed.
As shown in FIGS. 54 and 55, the bottom panel 380 of the bottom cover 372 may be removably attachable on 3 or 4 sides. FIGS. 54 and 55, respectively, to enable the mattress core 382 (FIG. 55) to be installed through the bottom of the bottom cover 372.
Alternatively, in an embodiment as illustrated in FIG. 46B, in which the top and bottom covers are attached to a center band, a 3 or 4 sided third zipper (not shown) may be disposed between the zippers for the top and bottom covers to enable the mattress core 382 to be installed from the top side. In this embodiment, the third zipper is unzipped detaching or peeling back the top cover. The bottom cover is laid in place with the sides drooping down. The mattress core is installed and the sides of the bottom cover are pulled up and attached to the center band, as discussed above. The top cover is then attached to the center band by way of the third zipper and the mattress is complete.
FIGS. 56-68 illustrate different embodiments for encasements for encasing a mattress core. These embodiments relate to different permutations of inner encasements, outer encasements, top covers and bottom covers.
FIGS. 56-59 illustrate various embodiments of an encasement with a removable bottom cover. The removable bottom cover increased functionality as discussed below. The removable bottom cover illustrated in FIGS. 56 and 57 allows passive maneuvering. The removable bottom cover as illustrated in FIGS. 58 and 59 allows for active maneuvering.
FIG. 56 illustrates an end elevational view in section while FIG. 57 relates to a side elevational view. These figures illustrate an embodiment which includes an upper outer cover 402, which may be a decorative cover, and a lower inner cover 400 form an encasement for a mattress core 404. The covers 400 and 402 may be attached together by way of a pair of zippers, for example, as illustrated in FIG. 49 and identified as zipper #2. Zipper #2 allows the top outer cover 402 to be connected to the inner bottom cover 400.
The removable bottom cover, identified with the reference numeral 406, is attached to zipper #1. Zipper #1 is attached to the upper outer cover 402, above zipper #2 to conceal zipper #2. Zipper #1 like zipper #2 may be of the type illustrated in FIG. 49.
In order to provide passive maneuvering, an exterior surface 410 of the lower inner cover 400 and/or a top surface of bottom cover 406 may be formed with a slick surface. In order to passively maneuver the encased mattress core, the bottom cover 406 is unzipped or otherwise disconnected from the upper outer cover 402. The bottom cover 406 is then folded down. The encased mattress core 404 can then be maneuvered with respect to the bottom cover 406. Once the encased mattress core 404 is in the desired position, the bottom cover 406 is folded up and re-connected to zipper #1.
FIGS. 58 and 59 illustrate a bottom cover 420 which provides active mattress maneuvering. FIG. 58 illustrates an end elevational view in section while FIG. 59 illustrates a side elevational view. The attachment of the upper outer cover 402 to the lower inner cover 400 by way of zipper #2 is the same as discussed above. The attachment of the lower outer cover 420 to zipper #1 is the same as the attachment of the cover 406 to zipper #1, as discussed above.
The only difference between the embodiment illustrated in FIGS. 56 and 57 and the embodiments illustrated in FIGS. 58 and 59 relates to the inflatable volume, generally identified with the reference numeral 422, integrally formed with the lower outer lower cover 420.
The inflatable volume 422 allows the encased mattress core 404 to be levitated for active maneuvering. In order to enable active maneuvering, the pump 321 is turned on. After the desired mattress maneuvering is accomplished, the air pump 321 is turned off.
The lower outer cover 420 optionally allows for passive maneuvering. In order to provide passive maneuvering, the bottom surface 430 of the lower inner cover 400 and/or a top surface 432 of the lower outer cover 420 may be provided with slick surfaces.
In order to engage the passive mode for the lower outer cover 420, the lower outer cover 420 must be unzipped from zipper #1 and folded down over the foundation (not shown). The encased mattress core 404 can then be passively maneuvered. Once the encased mattress core 404 is in the desired position, the lower outer cover 420 is re-zippered to Zipper #1.
FIGS. 60 and 61 are similar to FIGS. 56-59. The only difference is that zipper #1 is attached to a flap 430, that, in turn is attached to the upper outer cover 402.
FIGS. 62 and 63 relate to another alternate embodiment of a mattress core encased by an inner encasement and an outer encasement. These embodiments include a top cover and a bottom cover connected together to form an outer encasement. Both embodiments include an upper inner cover 402 and a lower inner cover 400 that are attached together by way of a zipper 440, for example, a pair of zippers as illustrated in FIG. 49.
Referring first to FIG. 62, an outer encasement is formed by an upper outer cover 442 and a lower outer cover 444. These covers 442, 444 are connected together on at least 3 sides by way of a zipper 44.
Passive maneuvering capability is only available if the covers 442, 444 are zipped on all 4 sides. In order to provide the capability for passive maneuvering, a bottom surface 448 of the lower inner cover 400 and/or the top surface 450 of the lower outer cover 444 may be formed as a slick surface. In order to passively maneuver the encased mattress core 404, the lower outer cover 444 is unzipped on all 4 sides and folded down. The encased mattress core is maneuvered. Once the encased mattress core 404 is in the desired position, the lower outer cover 444 is re-attached to the upper outer cover 442.
FIG. 63 illustrates an active version of the embodiment illustrated in FIG. 62. This embodiment includes an upper outer cover 442 and a lower outer cover 460. The lower outer cover 446 is attached to the upper outer cover 442 by way of a zipper 440 along at least three sides. The lower outer cover 460 includes an inflatable volume 462 which facilitates active maneuvering, as discussed above.
Passive maneuvering capability is only available if the covers 442, 460 are zipped on all 4 sides. In order to provide the capability for passive maneuvering, a bottom surface 448 of the lower inner cover 400 and/or the top surface 464 of the lower outer cover 460 may be formed as a slick surface. In order to passively maneuver the encased mattress core 404, the lower outer cover 460 is unzipped on all 4 sides and folded down. The encased mattress core 404 is maneuvered. Once the encased mattress core 404 is in the desired position, the lower outer cover 464 is re-attached to the upper outer cover 442
FIGS. 64A-64C illustrate a mattress core 404 encased in an inner encasement formed from an upper inner cover 402 and a lower inner cover 400. FIG. 64 A illustrates an upper outer cover 470 and a lower outer cover 472. With reference to FIG. 678, The inner covers 400 and 402 may be connected together by way of a set of zippers (not shown) attached to the upper and lower inner covers 400,402, The outer covers 470 and 472 may likewise be connected together by another set of zippers (not shown) for example, as illustrated in FIG. 49, attached to zipper halves carried by the inner covers.
FIGS. 64B and 64C illustrate a single outer cover attached to a zipper (not shown) attached to the band 326. FIG. 64B illustrates an embodiment without a top cover 470 while FIG. 64C illustrates an embodiment without a bottom cover 472.
FIGS. 65-67 illustrate a passive and active embodiment of a mattress core encased by an inner and outer encasement in which the upper and lower covers of the outer encasement are attached to flaps, which, in turn, are attached to the inner encasement.
Referring first to FIGS. 65 and 66. FIG. 65 is an end elevational view in section of an alternate embodiment of a mattress core encased by an inner encasement and an outer encasement. FIG. 66 is a side elevational view of the device illustrated in FIG. 65.
Referring first to FIG. 65, an inner encasement is formed from a lower inner cover 400 and an upper inner cover 402 that are connected together by way of a pair of zippers, identified as zipper #3, for example, as illustrated in FIG. 49, attached to the inner encasement. A pair of flaps 500 and 502 are provided for attaching an upper outer cover 504 and a lower outer cover 506 to the inner encasement. The flaps 500 and 502 are attached to the inner encasement. The upper outer cover 504 is attached to the flap 500 by way of a set of zippers, identified as zipper #1, for example, as illustrated in FIG. 49. The lower cover 506 is attached to the flap 502 by way of a set of zippers, identified as zipper #2, for example, as illustrated in FIG. 49. FIG. 67 is similar to FIGS. 65 and 66 except the lower outer cover 510 is formed with an integrated inflatable volume 512.
FIGS. 69-77 illustrate various embodiments of a “one size fits all encasement. FIGS. 69-73 illustrate a passive embodiment while FIGS. 74-78 illustrate an active embodiment. These embodiments include an encasement that includes a top cover 550 and a bottom cover 552 that are zippered on 3 sides. The top cover 550 and the bottom cover are otherwise attached, e.g. for example, sewn, together on the one end. Both the top cover 550 and the bottom cover 552 include a horizontal panel and vertical side panels. In accordance with this embodiment, the vertical side panels and optionally the horizontal panel are made from a fabric that is stretchable. By providing stretchable fabrics, the encasement can be used for mattresses of different sizes.
The one size fits all encasement can be configured to provide passive and active maneuvering. FIGS. 72 and 73 illustrate embodiments with passive maneuvering while FIGS. 74-77 illustrate embodiments with active maneuvering.
Referring first to FIG. 72, an inner surface 554 of the bottom cover 552 may be formed as a slick surface to provide passive maneuvering. Various exemplary materials are identified in FIG. 73 for the bottom panel of the lower cover 552.
The slick surface 554 facilitates horizontal rotation of the mattress core (not shown) when the top and bottom covers 550, 552 are un-zipped. In this mode, the bottom cover 552 is folded down over the foundation (not shown) and the top cover 550 is flipped over to one side. The mattress (not shown) is maneuvered taking advantage of the slick surface on the inner slick surface 554 on the bottom cover 552. Once the mattress is in the desired position, the top cover 550 is folded back over the mattress. The top cover 550 and the bottom cover 552 are zipped back together.
The bottom cover 552 may be further configured with an inflatable volume 553 to further facilitate active mattress maneuvering. In this embodiment, the bottom panel 55 of the bottom cover 552 is integrated with an inflatable volume 553. Various exemplary embodiments of an inflatable volume are illustrated in FIGS. 74-78 for the inflatable volume.
The inflatable volume 553 facilitates maneuvering of a mattress. In an active mode of operation, the inflatable volume 553 is inflated by way of an air pump (not shown). The mattress (not shown) is then maneuvered. After the mattress is in the desired position, the air pump is turned off.
FIGS. 79-86F disclose a fitted mattress cover 560 that can easily be snugged in place. Various embodiments of the mattress cover are disclosed. FIGS. 79-85 illustrate a first embodiment. FIG. 86A illustrates a second embodiment. FIG. 86B illustrates a third embodiment. FIGS. 86C-86F illustrate a fourth embodiment.
Referring first to FIGS. 79-85, a mattress cover 560 is shown that includes a horizontal panel 580 and vertical side panels 582. The vertical side panels 582 are attached to the periphery of the horizontal panel 580. A free end of the vertical side panels may include an elastic band 584. The horizontal panel 580 and vertical panels 582 are configured to fit somewhat loosely over the mattress (not shown). Zippers, generally identified with the reference numeral 586, are used to cinch the corners. In particular, a zipper is attached to 2 or 4 of the corners of the cover 560. The zippers 586 are attached to adjacent vertical panels so that each zipper half is attached to an adjacent vertical panel, forming a V pattern, as illustrated in FIGS. 79-85. In use, after the mattress cover 560 is in place over the mattress, the zippers 586 are zipped to snug the corners and thus the cover 560 to the mattress.
FIG. 86A illustrates a second embodiment in which adjacent vertical panels 582 are cut out, as shown. A piece of elastic 590 may be attached across the gap to join adjacent side panels 582 together created by the cutout to allow for stretch when the side panels are folded down. Mating zipper halves 586A and 586B are attached to cut-out vertical panels 582. FIG. 86B illustrates a third embodiment and is similar except the cut-out and the zipper halves are disposed between the two corners. In use, the cover 460 is disposed over a mattress (not shown) and the zippers are zipped up to snug the cover relative to the mattress.
FIGS. 86C-86F illustrate a fourth embodiment. In this embodiment, adjacent side panels 582 are cut out, as shown. Zipper halves 586A and 586B are attached to the exposed edges of adjacent vertical panels 582. An elastic band 590 is affixed to a free end of the vertical panels 582 along the edge. In use, the cover 460 is disposed over a mattress (not shown) and the zippers are zipped up to snug the cover relative to the mattress.
FIGS. 87-96 illustrate three different embodiments of encasement covers that can be made from 2 or 3 component parts. These covers can be used as top and bottom covers for a mattress or mattress core encasement. FIGS. 87-90 disclose a first embodiment illustrating a 2-piece encasement cover in which the component pieces are formed as in a C-L configuration. FIGS. 91-94 illustrate a second embodiment of an encasement cover, illustrating a 3-piece encasement cover. FIGS. 95 and 96 illustrate a third embodiment illustrating an alternate 2-piece encasement cover in which the component pieces are formed as in a C-C configuration.
Referring first to FIGS. 87-90, the two-piece encasement cover, generally identified with the reference numeral 600 includes an L-shaped piece 602 and a C-shaped piece 604. The L-shaped piece 602 may be formed from a single piece of material and is used to form a top panel 606 and one side panel 608. A top side of the L-shaped material is formed with a slick surface while the opposing side has a non-slick surface. The C-shaped piece 604 may be formed from a single piece of material. This material can be the same or different than the material used for the L-shaped piece. The material for the C-shaped piece can be elastic or non-elastic. The elastic can be a continuous or non-continuous band of fabric pieces or sections. The side panels 612 and 616 are attached, for example, sewn, to the perimeter edge of the top panel 606 of the L-shaped piece. The free ends of the side panels 612 and 616 are attached to the edges of the side panel 608 to form the completed cover 600, as illustrated in FIG. 88. Zippers 618 and 620 may be attached to corners of the C-shaped section, as discussed above, to cinch the corners relative to a mattress or mattress core, as illustrated in FIGS. 88 and 89, to form the encasement cover 600, illustrated in FIG. 90.
FIGS. 91-94 illustrate a second embodiment formed as a 3-piece cover 650. The 3-piece cover 650 includes a C-shaped piece 652 that defines a top panel 652 and 2 side panels 656 and 658, formed, for example, from a continuous piece of material. The 3-piece cover includes 2 side panels 660 and 662. A top surface of the C-shaped piece may be formed from a continuous piece of material with a slick surface. The bottom surface of the C-shaped piece is formed with a non-slick surface. The side panels 660 and 662 may be formed from the same or different material that the C-shaped piece 652. The side panels may be formed from elastic that may be continuous or non-continuous band of fabric or pieces or sections.
The side panels are attached along the top edge of the panel. The extending edges of the side panels 612 and 616 are attached to the edges of the side panel 608 to form the cover 650, as shown in FIG. 88. Zippers 651 and 653 may be attached to the corners, as shown in FIGS. 93 and 94.
FIGS. 95 and 96 illustrate a third embodiment illustrating an encasement cover 660 formed from 2 C-shaped sections 662 and 664. The section 662 forms a top panel 664 and 2 opposing side panels 666 and 668. Similarly, the section 660 forms a panel 670 and 2 side panels 672 and 674. The top section may be formed from a stretch material to accommodate mattresses of different depths. The bottom section 660 may be formed with a slick inner surface and a non-slick outer surface. The top section 662 may be attached to the top section by way of zippers 676 that are zipped on 3 or 4 sides as shown in FIG. 96. In those embodiments where the top section 662 and the bottom section 660 are zipped on all 4 sides, the top section 662 can be removed. In embodiments in which the top section 662 and the bottom section 660 are zippered together on 3 sides, the fourth side is otherwise attached by attaching, e.g. sewing, the side panel 668 on the section 662 to the side panels 672 and 674 of the section 660. Also, the bottom edge of the side panel 668 of the section 662 is attached to the edge of the panel 670 of the section 660.
FIGS. 97-100 illustrate another alternate embodiment of an encasement formed in a clam shell configuration, generally identified with the reference numeral 670. The clam shell configuration includes a top panel 671, a bottom panel 673 and 4 side panels 672. The top panel 671 is removably attached along 3 sides. In addition, 2 of the vertical side panels 672 adjacent the attached side 675 of the top cover 671 are also removably attached to facilitate a mode in which the side panels 672 are folded down over a foundation (not shown). A stretchable material 677 may be used to bridge the gap between the zippered vertical panels 672 and a vertical panel 675 that connects the top horizontal panel 671 to the lower horizontal panel 673.
A top surface of the lower panel 673 is formed with a slick to facilitate passive mattress maneuvering. In this mode, the top cover 671 is un-zipped and moved to one side. The side panels 672 are folded down for passive mattress maneuvering. After the mattress (not shown) is in the desired position, the side panels 672 are folded up and the top cover 671 is zipped up.
FIGS. 101-103 and 106 illustrate an embodiment of an encasement for use with an integrated double sided foam/inner spring mattress or a dual sided foam mattress or a single sided mattress, generally identified with the reference numeral 700 (FIG. 101). Such dual sided combination coil spring foam mattresses are known to include coil springs sandwiched between one or more layers of foam.
In this embodiment, the encasement includes a top cover 702 (FIG. 106) and a bottom cover 704, which may be removably attachable to each other, as shown in FIG. 101, or attachable to a center band 706, as shown in FIG. 106, or an inner encasement or inner band. FIG. 106 illustrates a center band 706 attached to an inner encasement, shown with the mattress core removed.
In the embodiment illustrated in FIG. 101, the top cover 702 may be attached to the bottom cover 704 by way of a pair of zippers 710, as illustrated in FIG. 103. In the embodiment illustrated in FIG. 106, 2 sets of zippers 710 are required. One set is used to attach the top cover 702 to the band 706. Another set is used to attach the bottom cover 704 to the band 706.
In order to facilitate insertion of the mattress core into the encasement, for embodiments that include a top and bottom cover, these embodiments may include an extra 3 or 4 sided zipper on a bottom panel, as illustrated in FIG. 54 or 55, or an additional 3 or 4 sided zipper in parallel with the zippers for the attachment of the top and bottom covers, enable the top cover to be peeled back or removed to facilitate installation of the mattress core.
Embodiments are contemplated which only include a bottom cover or a top cover. In these embodiments, the bottom or top cover can be removably attached to a band or inner encasement or cover, for example, by way of 180 degree zippers, as discussed above.
All of the embodiments disclosed herein may be formed as either a passive encasement or an active encasement to facilitate mattress rotation. By rotating a mattress, the life of the mattress can be increased up to double its life without rotation. Single sided combination mattresses cannot be flipped and can only be rotated in a horizontal direction. With a double sided mattress, the mattress core can be flipped and rotated 180 degrees again further increasing the life of the mattress to enable mattress warranties to be extended up to 20 years or more. Alternatively, the entire mattress with both covers installed can be rotated horizontally, flipped over and rotated horizontally again.
Active embodiments include an inflatable air volume which may be integrated into a bottom cover 704. In a rotate mode of operation, the bottom cover 704 is unzipped from the upper cover 702 (FIG. 102) or alternatively, the band 706 (FIG. 106). The side panels of the lower cover 704 are folded down to enable the mattress core (not shown) to rotate with respect to the bottom cover. After the side panels of the bottom cover 704 are folded down, an external air pump (not shown) is turned on to inflate the inflatable volume. After the inflatable volume is inflated, the mattress core is rotated. After the mattress core is in the desired position, the bottom cover 704 is re-zipped to the upper cover 702 or alternatively the band 706 (FIG. 106).
For passive rotation, an inner surface 216 of the bottom cover 704 or alternatively the bottom surface of the mattress core is formed as a slick surface. Alternatively, a bottom surface of the mattress core may be formed as a slick surface. Passive rotation involves rotating the mattress core (not shown). In this method, the bottom cover 704 is unattached from the top cover 702 or the band 706 (FIG. 106) and the sides of the bottom cover 704 are folded down. The mattress core is then rotated 180 degrees. After the mattress core has been rotated, the side panels of the lower cover 704 are folded up to enable the bottom cover to be re-zipped to the top cover 702 (FIG. 106) or the band 746. The 180 degree zippers allow the covers to be reattached.
As used herein, the term mattress core is intended to mean foam mattresses, combination spring and foam mattresses. The term mattress is also intended to refer to both single sided and dual sided foam mattresses and combination mattresses.
FIG. 104 illustrates a clam shell type encasement 800 that includes a passive encasement zipper containment system 802 to provide protection against parasites, dust mites and allergens. An exemplary passive encasement zipper containment system is disclosed in US Patent Application Publication No. 2015/0359352, hereby incorporated by reference. As shown, the encasement 800 includes an upper cover 804 and a lower cover 806. These covers 804, 806 are zippered with a zipper (not shown) together on 3 sides. The passive zipper containment systems 802 are disposed at the corners of the encasement, as shown.
FIG. 105 is an exploded perspective view of an active encasement cover, generally identified with the reference numeral 900 which includes an integrated inflatable volume 902. The inflatable volume 902 forms the bottom panel of the cover 900. The cover 900 also includes 4 side panels, generally identified with the reference numeral 904. In an exemplary embodiment, the side panels are formed to be 11 inches high.
The inflatable volume 902 is formed from 2 layers of material 906 and 908 that are attached together along the periphery. These layers 906, 908 are also attached together at one or more attachment points 910. These layers 906, 908 may be made from 110 GSM white integrated 100% polyester fabric with thick TPU lamination. An air exit valve 912 is provided, for example, a zipper. The inflatable volume 902 may also include one or more air exit holes (not shown).
Obviously, many modifications and variations of the present invention are possible in light of the above teachings. For example, materials for the covers and slick surfaces other than those mentioned above can be which have similar coefficient of friction characteristics. Thus, it is to be understood that, within the scope of the appended claims, the invention may be practiced otherwise than as specifically described above.
What is claimed and desired to be secured by a Letters Patent of the United States is:
