Compartmentalized Patents (Class 5/720)
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Patent number: 6966091Abstract: An innerspring assembly comprising at least two sets of coil springs. In one embodiment, a first set of coil springs has a first elevation, a second set of coil springs has a second elevation different from the first elevation, and wherein one of the first and second sets of coil springs is compressed upon initial loading of the innerspring assembly, and wherein each of the first and second sets of coil springs is compressed upon continued loading of the innerspring assembly. In another embodiment, a first set of coil springs is pre-loaded to a first compressed state and a second set of the coil springs is pre-loaded to a second compressed state that exhibits a different degree of firmness relative to the first compressed state. In yet another embodiment, a first set of the coil springs has a barrel-shaped outer profile while a second set of the coil springs has an hourglass-shaped outer profile.Type: GrantFiled: November 26, 2003Date of Patent: November 22, 2005Assignee: Barber Manufacturing Company, Inc.Inventor: James R. Barber
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Patent number: 6952850Abstract: A no-fip mattress is constructed of a mattress core, a first padding layer positioned on top of the core, wherein the first padding layer has a density in the range from about 0.5 pounds per cubic foot to about 3 pounds per cubic foot and a firmness in the range from about 8 IFD to about 45 IFD. A second padding layer is adjacent to the first padding layer, wherein the second padding layer has a density in the range from about 0.5 pounds to about 1.9 pounds, and an IFD in the range from about 5 to about 23. A bottom support layer is beneath the core, and comprises a relatively dense and firm material.Type: GrantFiled: November 10, 2003Date of Patent: October 11, 2005Assignee: Denver Mattress LLCInventors: Barney D. Visser, Robert L. Rensink
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Patent number: 6948205Abstract: The present invention relates to a mattress (10), for use as a bed, which mattress comprises substantially resilient material such as a foam rubber, spring devices (4) such as coil springs being provided in the mattress, in order to distribute the pressure exerted upon the mattress. The mattress according to the invention is characterised in that the mattress comprises at least two layers (1,2) placed one on top of the other, blind holes (3) for the accommodation of the spring devices (4) being made in at least one of said two layers, which blind holes connect to the boundary face between the two layers.Type: GrantFiled: January 4, 2002Date of Patent: September 27, 2005Assignee: Beter Bed Holding N.V.Inventors: Cornelus Johannes Van Der Wurf, Irene Clementine Mirjam Best
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Patent number: 6944899Abstract: A mattress construction with a multi-strand coil spring is disclosed. The multi-strand coil spring can be designed with the same performance characteristic as a conventional solid wire coil spring, but at a lower manufacturing and material cost.Type: GrantFiled: October 15, 2003Date of Patent: September 20, 2005Assignee: Dreamwell, Ltd.Inventor: Richard F. Gladney
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Patent number: 6931685Abstract: A one-sided mattress construction includes a spring assembly with asymmetric spring coils. Only the bottom portion of each spring coil is attached, either to adjacent spring coils or to a bottom surface of the mattress. The top portion of each spring may have a narrowing taper that permits the top to move independent of other adjacent springs.Type: GrantFiled: September 12, 2003Date of Patent: August 23, 2005Assignee: Dreamwell, Ltd.Inventors: Bernhard W. Kuchel, Michael S. DeFranks
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Patent number: 6898813Abstract: An innerspring assembly includes a first plurality of interconnected strings of pocketed first springs. A second plurality of strings of springs is provided and so incorporated in the innerspring assembly that at least one string of springs of the second plurality is placed between two neighboring strings of the first plurality of interconnected springs, wherein the second springs have a diameter which is smaller than a diameter of the first springs.Type: GrantFiled: October 24, 2002Date of Patent: May 31, 2005Assignee: AGRO Federkernproduktions GmbHInventor: Wolfgang Grothaus
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Patent number: 6883196Abstract: An innerspring assembly comprising a plurality of strips of pocketed coil springs, each including axially interconnected spring pockets having a pocket height. The strips of pocketed coil springs are comprised of overlapping plies of material adjoined together by axially offset cross seams extending generally along the pocket height to define the spring pockets, with each spring pocket containing a coil spring. In one embodiment, the overlapping plies of at least two strips are coupled together by connecting seams extending along the pocket height and axially offset from the cross seams. In another embodiment, the overlapping plies of at least three strips are interconnected. In another embodiment, overlapping edges of the plies of material are adjoined by a closing weld seam positioned adjacent an end surface of the pocketed coil springs, with the overlapping plies of material of at least two strips interconnected by connecting welds positioned along the pocket height.Type: GrantFiled: November 26, 2003Date of Patent: April 26, 2005Assignee: Barber Manufacturing Company, Inc.Inventor: James R. Barber
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Patent number: 6862763Abstract: A bedding or seating product comprising a spring assembly made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. Selected pockets of fabric are shorter than adjacent pockets, so coil springs in the selected pockets are under a greater load than adjacent coil springs. In one preferred embodiment, every other pocket is under a greater load than the adjacent pockets, resulting in a checkerboard arrangement in at least one area of the product.Type: GrantFiled: December 2, 2002Date of Patent: March 8, 2005Assignee: L&P Property Management CompanyInventors: Niels S. Mossbeck, Terry W. Moser
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Patent number: 6829798Abstract: A bedding or seating product comprises a pocketed spring assembly having a plurality of parallel strings of springs joined to each other. Each of said strings of springs comprises a row of interconnected pockets, each of the pockets containing at least one spring encased in a fabric pocket and with more than one line of attachment between at least selected adjacent pockets. At least one spacer strip or at least one scrim sheet extends between the interconnected pockets of at least one string of springs and is secured thereto to provide stability in the pocketed spring assembly.Type: GrantFiled: January 8, 2003Date of Patent: December 14, 2004Assignee: L&P Property Management CompanyInventor: Thomas J. Wells
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Patent number: 6826796Abstract: A bedding or seating product is provided comprising a pocketed spring assembly made up of a plurality of parallel strings of springs joined to each other. Each string of springs comprises a row of interconnected pocketed springs. The pockets of fabric are vertically shortened with seams to create pockets of the same height, each containing a spring. The springs are vertically offset from one another due to the location of the seams. Upon an initial load, only some of the pocketed springs are compressed.Type: GrantFiled: August 6, 2003Date of Patent: December 7, 2004Assignee: L&P Property Management CompanyInventor: Niels S. Mossbeck
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Patent number: 6813791Abstract: A bedding or seating product comprising a pocketed spring assembly made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a plurality of interconnected pocketed coil springs. The product has multiple sections of differing firmness attributable in part to differing heights of the pockets of the strings of springs. Filler is placed above the lower sections of the pocketed spring assembly.Type: GrantFiled: March 4, 2003Date of Patent: November 9, 2004Assignee: L&P Property Management CompanyInventors: Niels S. Mossbeck, Thomas J. Wells
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Patent number: 6804847Abstract: A pocketed spring core includes a plurality of springs which are arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material. A first cover sheet is placed over and connected to the spring strands, and a second cover sheet is placed under the spring strands and connected thereto. At least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips.Type: GrantFiled: May 13, 2003Date of Patent: October 19, 2004Assignee: Agro Federkernproduktions GmbHInventor: Wolfgang Grothaus
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Publication number: 20040194221Abstract: A directional lock for a caster. The caster has a wheel assembly including a wheel rotatable about a wheel axis and a housing for supporting the wheel. The housing defines a cavity for receiving a portion of the wheel. Also, the caster includes a stem supported by the housing and positionable in a chassis element, the wheel assembly being pivotally attached to the stem. The directional lock has an engagement portion and a base portion coupled to the engagement portion such that the engagement portion is movable relative to the base portion. The engagement portion is for engaging the wheel assembly to locate the wheel assembly in a predetermined position relative to the chassis element. The base portion is adapted to cooperate with the chassis element to maintain the engagement portion in a predetermined relation to the chassis element.Type: ApplicationFiled: April 4, 2003Publication date: October 7, 2004Inventors: Ralph Thompson, Geoff Rutherford
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Publication number: 20040172767Abstract: A bedding or seating product comprising a pocketed spring assembly made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a plurality of interconnected pocketed coil springs. The product has multiple sections of differing firmness attributable in part to differing heights of the pockets of the strings of springs. Filler is placed above the lower sections of the pocketed spring assembly.Type: ApplicationFiled: March 4, 2003Publication date: September 9, 2004Applicant: L&P Property Management CompanyInventors: Niels S. Mossbeck, Thomas J. Wells
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Publication number: 20040158929Abstract: A mattress construction with a stranded wire spring is disclosed. The stranded wire spring can be designed with the same performance characteristic as a conventional single strand coil spring, but at a lower manufacturing and material cost.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: Dreamwell, Ltd.Inventor: Richard F. Gladney
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Patent number: 6772463Abstract: A stiffening system for the perimeter edges of a foam core mattress comprising a coil spring (or other spring-based) structure disposed along one or more perimeter edges (e.g., one or both side edges, the foot, the head, or a combinations thereof including the foot and both side edges) of a mattress having a foam sleeping area. The perimeter spring structure is rectangular or square in cross-section and provides sufficient stiffness for comfortable seating on the edges of the mattress and is joined to the foam core by planar fabric elements that span the joint between them and are attached to both. The sleep area provides the softness and other salutary effects of a foam sleeping surface while the stiffer spring perimeter element provides the rigidity need for comfortable seating and wear resistance.Type: GrantFiled: March 20, 2002Date of Patent: August 10, 2004Assignee: Dreamwell Ltd.Inventors: Rick Gladney, Kevin Damewood
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Publication number: 20040148706Abstract: A mattress comprises a core, a first padding layer and a second padding layer positioned on top of the core. A bottom support layer is disposed below the core. The bottom support layer is relatively dense and firm to support the core.Type: ApplicationFiled: November 10, 2003Publication date: August 5, 2004Applicant: Denver Mattress Co. LLCInventors: Barney D. Visser, Robert L. Rensink
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Publication number: 20040133988Abstract: An innerspring assembly comprising a plurality of strips of pocketed coil springs, each including axially interconnected spring pockets having a pocket height. The strips of pocketed coil springs are comprised of overlapping plies of material adjoined together by axially offset cross seams extending generally along the pocket height to define the spring pockets, with each spring pocket containing a coil spring. In one embodiment, the overlapping plies of at least two strips are coupled together by connecting seams extending along the pocket height and axially offset from the cross seams. In another embodiment, the overlapping plies of at least three strips are interconnected. In another embodiment, overlapping edges of the plies of material are adjoined by a closing weld seam positioned adjacent an end surface of the pocketed coil springs, with the overlapping plies of material of at least two strips interconnected by connecting welds positioned along the pocket height.Type: ApplicationFiled: November 26, 2003Publication date: July 15, 2004Inventor: James R. Barber
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Publication number: 20040128773Abstract: An innerspring assembly comprising at least two sets of coil springs. In one embodiment, a first set of coil springs has a first elevation, a second set of coil springs has a second elevation different from the first elevation, and wherein one of the first and second sets of coil springs is compressed upon initial loading of the innerspring assembly, and wherein each of the first and second sets of coil springs is compressed upon continued loading of the innerspring assembly. In another embodiment, a first set of coil springs is pre-loaded to a first compressed state and a second set of the coil springs is pre-loaded to a second compressed state that exhibits a different degree of firmness relative to the first compressed state. In yet another embodiment, a first set of the coil springs has a barrel-shaped outer profile while a second set of the coil springs has an hourglass-shaped outer profile.Type: ApplicationFiled: November 26, 2003Publication date: July 8, 2004Inventor: James R. Barber
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Publication number: 20040128771Abstract: A bedding or seating product comprises a pocketed spring assembly having a plurality of parallel strings of springs joined to each other. Each of said strings of springs comprises a row of interconnected pockets, each of the pockets containing at least one spring encased in a fabric pocket and with more than one line of attachment between at least selected adjacent pockets. At least one spacer strip or at least one scrim sheet extends between the interconnected pockets of at least one string of springs and is secured thereto to provide stability in the pocketed spring assembly.Type: ApplicationFiled: January 8, 2003Publication date: July 8, 2004Applicant: L&P Property Management CompanyInventor: Thomas J. Wells
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Publication number: 20040117913Abstract: A bed construction having a one-sided mattress assembly supported on a rigid foundation. The one-sided mattress assembly includes a core of pocketed coil springs having a layer of resiliently compressible material covering the upper surface thereof and having a bottom surface constructed of a substantially rigid material without a compressible layer. The core of coil springs is. attached to the bottom surface around its periphery. The foundation has a rigid inner construction and a noncompressible top layer. The bed construction reduces the amount of compressible padding in the mattress by one-half and consequently the mattress is capable of exhibiting a substantial reduction in the amount of permanent deflection in use.Type: ApplicationFiled: December 9, 2003Publication date: June 24, 2004Applicant: Dreamwell, Ltd.Inventors: Rick F. Gladney, Kurtis Ling, Douglass D. Kinde
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Publication number: 20040103479Abstract: A bedding or seating product comprising a spring assembly made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. Selected pockets of fabric are shorter than adjacent pockets, so coil springs in the selected pockets are under a greater load than adjacent coil springs. In one preferred embodiment, every other pocket is under a greater load than the adjacent pockets, resulting in a checkerboard arrangement in at least one area of the product.Type: ApplicationFiled: December 2, 2002Publication date: June 3, 2004Applicant: L&P Property Management CompanyInventors: Niels S. Mossbeck, Terry W. Moser
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Patent number: 6742202Abstract: A support system has an array of telescoping columns that are each extended by a means such as a spring. The ends of the extended columns define a plane of support for a body resting on the array of columns. The columns move perpendicular to the plane of support, and independently, in response to the weight of a body resting upon them. The means for keeping the columns extended may be passive or active, and the columns may be moved independently by actuators connected to them. The columns may be assembled into modules, which can in turn be assembled into support systems of arbitrary size and shape.Type: GrantFiled: March 12, 2002Date of Patent: June 1, 2004Inventor: B. Thomas Jones
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Patent number: 6694554Abstract: A resilient structure having a fiber batt with coil springs disposed therein and respective coil spring paths. Each of the coil spring paths extending from a respective coil spring and having a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring. A method is also provided for heating the coil springs and inserting the coil springs into a side wall of the fiber batt to produce the coil spring paths that have a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring.Type: GrantFiled: April 19, 2002Date of Patent: February 24, 2004Assignee: L&P Property Management CompanyInventor: Larry I Bullard
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Patent number: 6684435Abstract: A bedding or seating product comprises a pocketed spring assembly having a plurality of parallel strings of springs joined to each other. Each of said strings of springs comprises a row of interconnected pockets, each of the pockets containing at least one spring encased in a fabric pocket. Some of the pockets contain two coil springs, an outer spring and an inner spring, the inner spring extending between the end turns of the outer spring and being wound generally coaxially with the outer spring. The end turns of the inner and outer coil springs are adjacent one another.Type: GrantFiled: October 24, 2002Date of Patent: February 3, 2004Assignee: L&P Property Management CompanyInventor: Thomas J. Wells
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Patent number: 6681428Abstract: A pocketed coil spring unit and associated method of assembly combines top and bottom sheets with bonding of the sidewalls of adjacent rows of pocketed coil springs. With this combination, a posturized spring unit is produced in a commercially efficient manufacturing process. The top and bottom sheets extend perpendicularly to the rows of pocketed coil springs and the adjacent rows of pocketed coil springs are bonded on the sidewalls of the fabric pockets in the absence of the top and bottom sheets. As such, the spring unit can be customized for posturization to provide a firmer supporting foundation at the locations of the top and bottom sheets and a more individualized flexible construction in the regions of the inter-row sidewall bonding.Type: GrantFiled: March 27, 2002Date of Patent: January 27, 2004Assignee: L&P Property Management Co.Inventor: Thomas J. Wells
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Patent number: 6668406Abstract: A spring unit (2) for incorporation into a bed, divan bed, mattress, or other upholstery unit comprises a first spring (4) and a second spring located (6) within said first spring (4). The first spring (4) may be a pocketted spring, or the second spring may be a pocketted spring, or both of said springs may be pocketted springs, the pockets of said pocketted springs being composed of a woven material and/or a synthetic material.Type: GrantFiled: June 9, 1999Date of Patent: December 30, 2003Assignee: A Harrison (Bedding) LimitedInventors: Peter Douglas Spinks, Simon Paul Spinks
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Patent number: 6643876Abstract: A mattress comprises a core of springs having a fabric covering, such as fabric pockets. A top padding layer is positioned on top of the core, and a bottom support layer is disposed below the core. The bottom support layer is bonded to the fabric covering to couple the bottom support layer to the core.Type: GrantFiled: November 21, 2001Date of Patent: November 11, 2003Assignee: Denver Mattress Co., LLCInventors: Barney D. Visser, Robert L. Rensink
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Patent number: 6591436Abstract: A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintained in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of pocketed coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24, 26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).Type: GrantFiled: June 19, 2001Date of Patent: July 15, 2003Assignee: Spuhl AG St. GallenInventors: Ugo de Santis, Roland Graf, Niels S. Mossbeck, Thomas J. Wells
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Patent number: 6591438Abstract: The present invention relates to a spring mattress comprising springs enclosed in casings, a so-called pocket mattress, and a method and a device for manufacturing such a mattress. The spring mattress according to the invention comprises a plurality of interconnected coil springs (1) enclosed in casings (2), for at least one of the springs, the casing portions arranged at the spring ends being moved towards each other, through the spring, and interconnected with the aid of connecting means.Type: GrantFiled: September 18, 2001Date of Patent: July 15, 2003Assignee: Stjernfjadrar ABInventor: Kenneth Edling
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Publication number: 20030110566Abstract: The article disclosed, with method for its manufacture, is a pocketed-spring construction made by joining juxtaposed subassemblies or modules formed by the interconnection of two rows of pocketed springs at intervals of two springs or more according to the resistance to compression desired. Various module joinder techniques are shown and described.Type: ApplicationFiled: December 19, 2001Publication date: June 19, 2003Applicant: Sidhil Technology, LLCInventor: Walter Stumpf
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Patent number: 6574811Abstract: A method of assembling strings of pocketed coil springs into an innerspring assembly which may be used as the core of a mattress, cushion or similar body support foundation uses a fabric material, preferably having an adhesive component, between rows of pocketed coil springs. The adhesive material serves to bond the rows of springs to each other and to position them relative to one another to prevent expansion and/or contraction of the spring assembly.Type: GrantFiled: September 27, 2000Date of Patent: June 10, 2003Assignee: L & P Property Management CompanyInventor: Niels S. Mossbeck
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Publication number: 20030093864Abstract: A mattress comprises a core of springs having a fabric covering, such as fabric pockets. A top padding layer is positioned on top of the core, and a bottom support layer is disposed below the core. The bottom support layer is bonded to the fabric covering to couple the bottom support layer to the core.Type: ApplicationFiled: November 21, 2001Publication date: May 22, 2003Inventors: Barney D. Visser, Robert L. Rensink
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Publication number: 20030074736Abstract: An innerspring assembly includes a first plurality of interconnected strings of pocketed first springs. A second plurality of strings of springs is provided and so incorporated in the innerspring assembly that at least one string of springs of the second plurality is placed between two neighboring strings of the first plurality of interconnected springs, wherein the second springs have a diameter which is smaller than a diameter of the first springs.Type: ApplicationFiled: October 24, 2002Publication date: April 24, 2003Applicant: AGRO FEDERKERNPRODUKTIONS GMBHInventor: Wolfgang Grothaus
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Patent number: 6523812Abstract: The invention discloses a spring unit for use in a sprung unit such as a bed, divan bed, mattress, or other upholstered unit, the spring unit comprising a pocket of fabric or other suitable material and having at least two sub-pockets, each of said sub-pockets containing a resilient member. The pocket will preferably be divided across, laterally, or diagonally so as to form said at least two sub-pockets. The spring unit may be formed with two sub-pockets or three or more sub-pockets each containing a resilient member. The sub-pockets may be of equal length or of differing lengths, and the resilient members will preferably be springs which may be of equal lengths or of differing lengths and of equal or differing rates of compression. The pocket will be divided by fabric or other suitable material which is integral with the pocket or by discrete piece(s) of fabric or other suitable material secured to said pocket to form said sub-pockets.Type: GrantFiled: November 10, 2000Date of Patent: February 25, 2003Assignee: A Harrison (Bedding) LimitedInventors: Peter Douglas Spinks, Simon Paul Spinks
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Patent number: 6499275Abstract: A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintained in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of pocketed coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24, 26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).Type: GrantFiled: June 16, 2000Date of Patent: December 31, 2002Assignee: Spuhl AG St. GallenInventors: Roland Graf, Niels S. Mossbeck, Thomas J. Wells
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Publication number: 20020184712Abstract: A bed construction having a one-sided mattress assembly supported on a rigid foundation. The one-sided mattress assembly includes a core of pocketed coil springs having a layer of resiliently compressible material covering the upper surface thereof and having a bottom surface constructed of a substantially rigid material without a compressible layer. The core of coil springs is attached to the bottom surface around its periphery. The foundation has a rigid inner construction and a noncompressible top layer. The bed construction reduces the amount of compressible padding in the mattress by one-half and consequently the mattress is capable of exhibiting a substantial reduction in the amount of permanent deflection in use.Type: ApplicationFiled: May 21, 2002Publication date: December 12, 2002Inventors: Rick F. Gladney, Kurtis Ling, Douglas D. Kinde
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Patent number: 6490744Abstract: A bedding or seating product comprising a spring assembly made of a plurality of strings of springs connected to each other. Each string of springs comprises a plurality of individually pocketed coil springs. Within each pocket is a coil spring and at least one cushioning pad secured to the coil spring. In one embodiment, one cushioning pad is secured to the upper end turn of the coil spring. In an alternative embodiment, cushioning pads are secured to the upper and lower end turns of the coil spring.Type: GrantFiled: November 2, 2000Date of Patent: December 10, 2002Assignee: L&P Property Management CompanyInventor: Martin Schulz, Jr.
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Patent number: 6487738Abstract: An all mechanical support surface that tracks the flotation properties of a true fluid and utilizes a series of constant restoring force springs connecting reciprocating pistons which have supporting surfaces with multiple degrees of freedom to define a user supporting surface that assumes the shape of the user and minimizes the force differential on different areas of the user's skin.Type: GrantFiled: March 20, 2000Date of Patent: December 3, 2002Assignee: Offspring, LLCInventor: Robert H. Graebe
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Publication number: 20020162173Abstract: It is proposed a new construction system for mattress made of latex including sacked springs, that allows an assembly without glueings or fastenings of mechanical type and allows to supply different bearing surfaces for the human body with different support densities, suitable for the different zones of human body in the rest position and related manufacturing method.Type: ApplicationFiled: April 25, 2002Publication date: November 7, 2002Inventor: Fabio Formenti
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Publication number: 20020152554Abstract: A spring unit (2) for incorporation into a bed, divan bed, mattress, or other upholstery unit comprises a first spring (4) and a second spring located (6) within said first spring (4). The first spring (4) may be a pocketted spring, or the second spring may be a pocketted spring, or both of said springs may be pocketted springs, the pockets of said pocketted springs being composed of a woven material and/or a synthetic material.Type: ApplicationFiled: June 9, 1999Publication date: October 24, 2002Inventors: PETER DOUGLAS SPINKS, SIMON PAUL SPINKS
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Publication number: 20020124321Abstract: A pocketed coil spring unit and associated method of assembly combines top and bottom sheets with bonding of the sidewalls of adjacent rows of pocketed coil springs. With this combination, a posturized spring unit is produced in a commercially efficient manufacturing process. The top and bottom sheets extend perpendicularly to the rows of pocketed coil springs and the adjacent rows of pocketed coil springs are bonded on the sidewalls of the fabric pockets in the absence of the top and bottom sheets. As such, the spring unit can be customized for posturization to provide a firmer supporting foundation at the locations of the top and bottom sheets and a more individualized flexible construction in the regions of the inter-row sidewall bonding.Type: ApplicationFiled: March 27, 2002Publication date: September 12, 2002Applicant: L&P Property Management CompanyInventor: Thomas J. Wells
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Patent number: 6408469Abstract: A bed construction having a one-sided mattress assembly supported on a rigid foundation. The one-sided mattress assembly includes a core of pocketed coil springs having a layer of resiliently compressible material covering the upper surface thereof and having a bottom surface constructed of a substantially rigid material without a compressible layer. The core of coil springs is attached to the bottom surface around its periphery. The foundation has a rigid inner construction and a noncompressible top layer. The bed construction reduces the amount of compressible padding in the mattress by one-half and consequently the mattress is capable of exhibiting a substantial reduction in the amount of permanent deflection in use.Type: GrantFiled: December 22, 2000Date of Patent: June 25, 2002Assignee: Simmons CompanyInventors: Rick F. Gladney, Kurtis Ling, Douglass D. Kinde
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Patent number: 6397418Abstract: The present invention relates to a spring mattress having two superposed layers of springs, which are enclosed in covers, and a method of manufacturing a mattress of this kind. The characterizing features of the invention are that the springs of the upper layer are positioned essentially straight above the corresponding springs in the lower layer, and that the covers are joined together in such a manner that the springs in the lower layer are affected at least to some extent by the spring above, in the upper layer, independently of neighboring springs.Type: GrantFiled: August 7, 2000Date of Patent: June 4, 2002Assignee: Stjernfjadrar ABInventor: NilsEric Stjerna
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Patent number: 6374442Abstract: A pocketed coil spring unit and associated method of assembly combines top and bottom sheets with bonding of the sidewalls of adjacent rows of pocketed coil springs. With this combination, a posturized spring unit is produced in a commercially efficient manufacturing process. The top and bottom sheets extend perpendicularly to the rows of pocketed coil springs and the adjacent rows of pocketed coil springs are bonded on the sidewalls of the fabric pockets in the absence of the top and bottom sheets. As such, the spring unit can be customized for posturization to provide a firmer supporting foundation at the locations of the top and bottom sheets and a more individualized flexible construction in the regions of the inter-row sidewall bonding.Type: GrantFiled: January 28, 2000Date of Patent: April 23, 2002Assignee: L&P Property Management Co.Inventor: Thomas J. Wells
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Patent number: 6370717Abstract: A bed mattress assembly is disclosed. The bed mattress assembly includes at least one bed mattress unit having a frame to be coupled with at least a buffer pad. At least one cover fitted over the buffer pad is capable of being releasably clamped by a plurality of clamping elements so as to retain the cover in position relative to the frame. At least one of the claming elements extends over the joint between two adjacent bed mattress units, allowing the two adjacent bed mattress units to be jointed into an integral structure.Type: GrantFiled: September 22, 2000Date of Patent: April 16, 2002Inventor: Pei-Chin Kao
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Publication number: 20020029424Abstract: An encased coil bed assembly includes a plurality of rows of coil springs enclosed within fabric pockets and sandwiched between felt mat layers. The felt mat layers are connected about their periphery to border rods by a plurality of hog rings. The fabric material is glued together and hog-ringed to the border rods. A plurality of reinforcement straps are provided across the bed between border rods to provide added support to prevent bowing of the bed.Type: ApplicationFiled: September 13, 2001Publication date: March 14, 2002Inventor: Donald K. Balsavich
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Patent number: 6347423Abstract: The subject matter is a cushion core construction in which individual elements of cushion material in plug-like form are connected together in a string by capturing them between two strips of flexible sheet material which are joined together between adjacent elements to hold the elements in place. The preferred structural unit is a two-row module formed by joining two such strings at intervals of at least two elements to enable them to stand alone, and to facilitate their handling in their assembly with like modules to form a more extensive core.Type: GrantFiled: September 29, 2000Date of Patent: February 19, 2002Assignee: Sidhil Technology, LLCInventor: Walter Stumpf
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Patent number: 6317912Abstract: A composite mattress is comprised of a rectangular intermediate base with four upper sidewalls extending vertically above the base adjacent the edges of the base forming an upper cavity, four lower sidewalls extending vertically below the base adjacent the edges of the base forming a lower cavity, a spring mattress comprised of a plurality of coil springs individually encased within material pockets positioned in the lower cavity below the base, an air mattress comprised of a plurality of adjustable air cell units formed with independent air cells positioned in the upper cavity above the base, and a cover encasing the entire composite mattress.Type: GrantFiled: March 8, 2000Date of Patent: November 20, 2001Inventors: Kurtis F. Graebe, Randy M. Marling
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Patent number: 6295673Abstract: A method of assembling strings of pocketed coil springs into an innerspring core which may be used as the core of a mattress, cushion or similar body support foundation uses a reinforcing material, preferably having an adhesive component, between rows of pocketed coil springs. The reinforcing, adhesive material serves to bond the rows of springs to each other and to reinforce the pockets to prevent wear between coils in frictional relation.Type: GrantFiled: December 8, 1998Date of Patent: October 2, 2001Assignee: L & P Property Management CompanyInventor: Niels S. Mossbeck