Abstract: Antenna devices are provided, including tightly coupled arrays, transmitarrays, and reflectarrays. An antenna device can include a plurality of substrates each having an antenna element. The substrates can be provided in connected series or in an array. The substrates can be part of an origami array such that the entire array is foldable. The substrates can optionally be attached to a framework that can actuate the substrates to different configurations. By bending, folding, or otherwise repositioning the substrates/array, the electromagnetic characteristics of the antenna device can be easily reconfigured for the desired task.

Abstract: A collapsible and portable rocking chair includes left and right frame side assemblies collectively defining forward and rear leg members, armrests, seat support members and back support members. The chair also includes transverse connectors connecting the left and right frame said assemblies and supporting the chair in its set-up condition. The connectors are pivotally connected to one another as well as to the left and right frame side assemblies to facilitate folding of the chair frame to a collapsed and bundled condition where all the frame members are pivoted and/or slid relative to one another to a generally parallel condition. Each frame side assembly is supported on a fulcrum point for rocking movement of the chair frame. A rocker mechanism is attached to the chair frame to support the chair during rocking movement and to facilitate rocking of the chair in connection with the user's shifting weight.

Abstract: A person lifting assembly to assist a person who has fallen get to a standing position includes a plurality of legs that define a first set of legs and a second set of legs. Each of the legs has a telescopically adjustable height. A base is attached to each set of legs such that the base has an adjustable height. A pair of armrests that have an adjustable height is included. Each of the armrests is attached to and extends between one of the sets of legs. A plurality of lifting units where each of the legs has a lifting unit mounted therein that extends into an associated one of the pair of armrests. Each of the lifting units extends or retracts an associated one of the legs with respect to the base to lift or lower the base with respect to the floor surface.

Abstract: A leg support assembly includes a lower frame including a pair of arms orientated parallel to each other. A pad is attached to the arms. An upper frame has an open end and an open central area. The open end is directed towards the pad. A plane of the upper frame is orientated parallel to a plane of the lower frame. A flexible material is attached to the upper frame and extends across the open central area. The flexible material supports an elevated leg of a person. A plurality of supports is attached to and extends between the upper and lower frames and retains the upper frame vertically above the lower frame. The plurality of supports is hingedly coupled to the lower and upper frames to allow lowering or raising of the upper frame relative to the lower frame.

Abstract: A scissor-lift platform comprises a scissor mechanism (1) and scissor elements (3) that are connected to form scissor element pairs by central bearings (2). At least one scissor element (3) of a scissor element pair has a bearing receiving element (4) that is removably connected to the scissor element (3) in order to receive the central bearing (2).

Abstract: A collapsible chair has a frame selectively moveable between a collapsed configuration of the chair and an extended configuration of the chair, and a seat that is coupled to the frame. The seat has a first material layer and a second material layer wherein the first layer and the second layer cooperatively define a seat pocket. A seat pad is selectively moveable between a stored configuration wherein the seat pad is located in the seat pocket and a portable configuration inside the seat membrane pocket and a portable configuration, wherein the seat pad is removed from the seat pocket and usable as a portable seat pad.

Abstract: A support mechanism for supporting an object, such as a table, has at least four legs and an interconnection means connecting the legs. Each leg has a beam portion with an inner end and an outer end. The beam portion of each leg is connected to the interconnection means by a respective pivot having a pivot axis located between the inner and outer ends of the beam portion. Each respective pair of adjacent legs has a protrusion fixed to one of the legs of that pair of adjacent legs and extending from that one leg to act on the other leg of that pair of adjacent legs. In use, the outer end of the beam portion of one leg moves in an upwards direction and the outer end of the beam portions of the adjacent legs moves in a downwards direction to accommodate uneven ground surfaces.

Abstract: An extendable and retractable column which is formed from at least three linked sections. The linked sections include a plurality of individual sections linked end to end. As the linked sections are extended, each of the individual sections of the linked chains engage individual sections of adjacent linked chains to form a column. As the linked sections are retracted, each of the individual sections of the linked chains disengage from the individual section of the adjacent linked sections and the individual linked sections may be rolled up for compact storage.

Abstract: An applicator, for a cosmetic liquid, such as nail polish, includes a reservoir and a removable cap sealing an opening in the reservoir. The applicator may be quite small, holding nail polish for a single application to a person's nails, having a number of legs that can opened so that the applicator can rest on a table. Alternately, the applicator may be built to be handled like a pen, with a piston that is driven to supply the liquid. Features are provided for the attachment of two or more such applicators to one another.

Abstract: A pallet for use in transporting merchandise includes a pallet body having a top surface for supporting merchandise. A foot-driven winch is mounted on the pallet body, and a flexible tie-down for restraining merchandise on the pallet body is connected to the winch. In a preferred method of using the pallet, a plurality of such pallets are disposed inside a vehicle with the pallets defining a surface which substantially spans the width of the floor of the vehicle and on which a delivery person can stand to access merchandise on the pallets. The delivery person can remove merchandise from the pallets while remaining inside the vehicle and then can move the merchandise to outside the vehicle without having to perform any lifting. As a result, sickness of delivery persons due to exposure to the weather during delivery and injuries due to lifting of merchandise can be decreased.

Abstract: A foldable support frame assembly includes a row of support units arranged along a first direction. Each of the support units includes two support frames. Each of the support frames includes two parallel braces, a top rail connected fixedly between upper end portions of the linking rods, and a bottom rail connected fixedly between lower end portions of the braces. The braces of each of the support units constitute two first scissor-linkages spaced apart from each other along a second direction perpendicular to the first direction. The foldable support frame assembly further includes a plurality of second scissor-linkages arranged alternately with the support units along the first direction, and a positioning mechanism for maintaining each of the first and second scissor-linkages in an unfolded state.

Abstract: An adjustable tripod stand having independently adjustable legs includes an upright member for supporting an object, such as a drum, at its upper end. A pair of independently movable collar members are slidably mounted on the upright member and longitudinally adjustable relative to and past one another and to an upright portion for selective positioning thereon. A releasable fastener on the collars secures them to the upright member at selected positions. Three movable leg members are connected at their upper ends, two to one of the collar members and one to the other collar member. Movement of the collar members permits the stand to be erected in limited or confined areas. The stand preferably includes a leg extender member slidably mounted on the exterior one of the leg members, which is movable a selected distance permitting the stand to be positioned on different levels, such as stairs.

Abstract: A stand for supporting a structure (e.g., a notebook) for holding one or more pages includes a mounting member adapted to engage the structure. A support member secured to the mounting member is moveable between a stowed and support positions. The support member includes a pair of legs defining at least in part a base of the support member. Each of the legs is selectively reconfigurable between a first configuration in which the leg has a relatively shorter length and a second configuration in which the leg has a relatively longer length. When the legs are in the relatively shorter configuration, the stand may be used to support the structure in an inclined position on a work surface. When the legs are in the longer configuration, the stand may be used to retain the structure in self-supporting configuration so the structure can support itself upright on the work surface.

Abstract: A support structure for a rig above a wellhead, such as a snubbing unit, is provided which directs loads from the rig into the ground to minimize stress on the wellhead components. The support structure generally comprises a support plate to be secured onto a wellhead and onto which the rig is secured and at least three ground engaging members distributed around and connected to the support plate, with the ground engaging members accepting the load placed on the support plate. The ground engaging members can be independently vertically adjustable, such as jack stands, for distributing the load between the ground engaging members. The support structure can also be adapted to be movable between a compact shipping position and a deployed operating position.

Abstract: A foldable frame comprises a front leg frame and a rear leg frame, each having one or more leg units foldable or detachable with one another. The front leg frame and the rear leg frame are rotatable with each other such that the foldable frame can be folded to a small size. The foldable frame also utilizes a receiving frame pivotally or steadily configured on the frame body for receiving the detachable infant carrier. A recliner apparatus is further configured between the receiving frame and the frame body for adjusting the receiving frame together with the infant carrier to different reclining angle for convenient use.

Abstract: A painting stand for supporting articles to be painted. The painting stand includes a pair of bow members being for selectively supporting the articles to be painted. One of the bow members is operationally coupled to the other one of the bow members whereby the bow members are actuatable between a deployed position and a storage position. The deployed position is defined by one of the bow members is positioned at angle to the other one of the bow members to selectively support the articles. The storage position is defined by one of the bow members is positioned substantially adjacent to the other one of the bow members to facilitate storage of the bow members. A pair of extension members are operationally coupled to the bow members whereby each of the extension members extends from one of the bow members to the other one of the bow members. The extension members maintain the bow members at the desired angle when the bow members are in the deployed position.

Abstract: A spring-loaded shelf for an existing beverage cooler, which obviates the need for a user to reach more deeply within the confines of the cooler for a beverage as the contents of the cooler become depleted. The spring-loaded shelf has a base, a platform pivotally attached to the base by two scissor-type linkages, and a lifting mechanism for selectively and automatically raising the platform with respect to the base upon the scissor-type linkages, as the weight of the beverages placed upon the platform gradually decreases. Use of the spring-loaded shelf prevents injury to the user while retrieving a beverage from the cooler, and also provides for increased accessibility and visibility of the contents of the cooler.

Abstract: The present invention discloses a collapsible stand for a bench-top power tool, and a portable power tool therefore. The stand includes a plurality of legs spaced about a central axis and pivotally interconnected by a plurality of cross members. Each leg has an upper end for supporting the power tool and a lower end for contacting an underlying support surface in an expanded position of the stand. The stand may be collapsed wherein the legs and cross members collectively converge toward the central axis as the legs and cross members each translate towards an orientation that is parallel to the central axis.

Abstract: A locking mechanism for a support leg hingedly attached to a support surface includes a base, attached to the support surface, with a plurality of angularly spaced, radial teeth, and a coupler, attached to the support leg, having a plurality of angularly spaced, radial teeth configured to mate with the teeth of the base. A selectively releasable engagement mechanism is configured to engage and disengage the teeth of the base with the teeth of the coupler, to allow selective rotation of the support leg between an extended position and a folded position, and to lock the leg in the extended or folded position.

Abstract: A multiple-purpose foldable frame includes a plurality of reinforcement rods, an adaptation holder, a plurality of sleeves and arms in conjunction with a plurality of posts and pivot holders. One end of each reinforcement rod is pivoted to a respective pivot holder at the lower end of each post and extending towards the center of the frame at a certain inclination with another end of the reinforcement rod pivoted to the adaptation rod. Each sleeve is inserted onto a respective post. One end of each arm is pivoted to a respective sleeve and another end to a respective reinforcement rod. Each arm is provided with a track to hold onto the reinforcement rod.

Abstract: A folding collapsible stand for supporting a table saw includes a rectangular top frame and a plurality of folding collapsible legs respectively pivoted to the top frame and respectively formed of a top tube, a bottom tube, a connector, and a pivot. The connector is mounted in the bottom tube, having a top stop device and two bottom extension strips. The bottom extension strips each have a knob that is engaged into a locating hole in the bottom tube to hold the top tube and the bottom tube in straight when the respective folding collapsible leg is extended out. Pressing the knob of each bottom extension strip away from the locating hole of the bottom tube allows the bottom tube to be turned relative to the top tube to a collapsed position.

Abstract: A backpacker's portable cooking stand that can be used for outdoor cooking and can be foldable to a compact configuration includes a cooking platform for mounting over a source of heat, and foldable legs that are pivoted to over center attitudes for stable use of the cooking stand over a fire and are folded to a compact configuration for travelling.

Abstract: A multi-leg stand mainly includes a vertical main tube and a tripod structure connected to a lower end of the main tube. The tripod structure includes an inner tube around which a locking element and three unions are sequentially mounted from top to bottom. Three legs are separately connected at inner ends to the three unions. When the locking element engages with the first union at a first locking position, the three legs are folded to locate at the same side of the main tube, and when the locking element engages with the first union at a second locking position, the three legs are equally angularly spaced and radially extended. And, when the locking element is in a releasing position on the inner tube, the three unions may be freely turned in one direction with only one hand to quickly and accurately move into the folded or the spaced position.

Abstract: A retainer for holding a plurality of waterfowl decoys has at least three arms pivotally mounted on a pin so as to be moveable between a first position in which the arms are aligned parallel to each other for storage and a open position in which the arms are angularly oriented with respect to one another. The device includes a locking pin for fitting into a first set of holes in the three arms for locking the arms in the first position and fitting into a second set of holes in the arms for locking the arms in the second position. The device further includes a moveable post at the end of each arm for retaining a waterfowl decoy and a ratchet engagement between the post and the arm to permit manual movement of the post with respect to the arm to its desired orientation to retain the post in the desired orientation after it has been positioned without requiring the tightening or untightening of screws and the like.

Abstract: A locking mechanism for a support leg hingedly attached to a support surface. The locking mechanism includes a base, attached to the support surface, with a plurality of angularly spaced, radial teeth, and a coupler, attached to the support leg, having a plurality of angularly spaced, radial teeth configured to mate with the teeth of the base. A selectively releasable engagement mechanism is configured to engage and disengage the teeth of the base with the teeth of the coupler, to allow selective rotation of the support leg between an extended position and a folded position, and to lock the leg in the extended or folded position.

Abstract: A foldable frame for supporting a fabric thereon includes at least three pairs of frame legs each of which comprises a pair of first and second frame legs pivotally connected together where the first and second frame legs cross, an upper frame joint for pivotally connecting top ends of the first frame legs, a lower frame joint for pivotally connecting lower ends of the second frame legs wherein the lower frame joint is positioned below and aligning with the upper frame, and a coupling joint including a slider axle slidably connected between the upper and lower frame joints, a tubular holder affixed on the slider axle between the upper and lower frame joints, and a locker means affixed to the lower frame joint wherein the locker means is adapted for rotatably engaging with the tubular holder in order to lock up the lower frame joint on the slider axle and adjust a distance between the upper and lower frame joints, so as to regulate the tension of the fabric.

Abstract: A folding table for use with a table saw. The folding table including an upper support surface to hold the table saw and a leg mechanism slidably connecting to the upper support surface through slots in the sides of the upper support surface. An actuator plate is provided to lock the leg mechanism in an open position whereby the legs support the upper support surface and a closed position whereby the leg mechanism is compact and fits closely with the upper support section. The actuator plate moves between a locked position, whereby the leg mechanism is secured in the open or closed position by pins in a curved lateral slot or straight lateral slot in the actuator plate, respectively, and a released position where the pins move between the curved and the straight slots. Indicator tabs can also be provided to show if the actuator plate is in the locked or released position.

Abstract: A golf club carrier having opposing sides supporting clubs horizontally on clips has a first condition resting on the ground with its legs spread and only feet of the unit contacting the ground, and a second horizontally-collapsed condition which is assumed as soon as the carrier is lifted from the ground. The golfer can carry the unit with an arm hanging freely at his or her side with little or no concern of the carrier contacting his or her legs or trousers while walking. An actuator extending below the rest of the unit comes into contact with the ground when next stopping to take a golf shot, and this actuator automatically spreads the legs to open the unit as its legs contact and are supported on the ground.

Abstract: A foldable table frame includes a table support apparatus which includes a set of our tabletop support arms slidably connecting at their inner, crossing ends to two opposing tabletop support arm holders and at their outer ends pivotally connecting to four frame top joints, such that each set of two tabletop support arms opposedly face with each other and are parallel to the other set of the two tabletop support arms. The table support apparatus further includes a pair of table support pillars for providing greater stability for the table support apparatus for supporting a foldable tabletop, each connecting at its upper end between the respective pair of tabletop support arm holders and at its lower end to a foldable table frame body. The foldable table frame is arranged to allow being pushed together in one motion to fold up the foldable table frame or pulled open to unfold the foldable table frame for the foldable tabletop to mount thereon.

Abstract: A collapsible tripod stool (16) which comprises three legs (18) with a structure (20) for crisscrossing the legs (18) together. A flexible seat (22) is also provided. A facility (24) is for attaching the flexible seat (22) onto flattened curved top ends (26) of the legs (18). When the legs (18) with the flexible seat (22) are put in an open position and placed upon the ground (28), a person (30) can sit upon the flexible seat (22). When the legs (18) with the flexible seat (22) are put in a closed position, the person (30) can comfortably carry it anywhere for any kind of outdoor activity.

Abstract: Disclosed is a shore which has a durability with respect to loads not only in a longitudinal direction and a lateral direction but also in a lengthwise direction, and which can be automatically folded without requiring extra work.

Abstract: A foldable leg assembly includes an adjacent pair of upright rail retaining legs, an adjacent pair of upright rail positioning legs, four sliding blocks and two parallel support rails. Each of the rail retaining legs has a rail accommodation chamber for accommodating one of the support rails therein when the leg assembly is folded and stored. Each of the rail positioning legs is provided with a rail positioning seat for positioning an upper end of one of the support rails when the leg assembly is erected. The rails are retained on the rail retaining legs, in such a manner that each of the rails is pivotable between a horizontal position, where the rail is positioned on one of the rail retaining legs and one of the rail positioning legs, and an erected position, where the rail can fall into the chamber of the corresponding rail retaining leg. A table top bridges the rails for use.

Abstract: A retractable distributed array antenna has a multiplicity of radiative elements arranged in a beam-forming array of desired configuration and resolvable into a plurality C of columns, with each column having at least one of the antenna radiator elements. Each of a number P of elongated column members, up to but not exceeding C in number, supports the antenna elements of an associated column. The column members are arranged with their elongated dimension generally parallel to one another. The adjacent end portions of each pair of column member, or of a column member and a central stowage module, are joined by a spring-loaded hinge assembly, which urges the joined column member end portions away from each other, to place the columns of elements into the desired distributed array antenna configuration, if no retroactive forces are present.

Abstract: An easily foldable conga stand (S) that takes little space and facilitates the setup of a conga (100).

Abstract: A rack for growing plants including a collapsible open frame having wire holes, through which a cord is inserted to set up a netting stretched in the collapsible open frame, and upright supports to support the collapsible open frame, each upright support having a forked top end terminated to a downward hook hooked in a hole on either corner on the collapsible open frame and an upward angle bar to support the collapsible open frame at either corner.

Abstract: A portable chamber-pot comprises a seat portion (2) without a collection chamber supported on a pair of foldable side legs (14,16). A disposable liner (30) has a pair of handles (46) which can be looped around the legs (14) and has a main portion which can be draped over the seat portion (2) to define a collecting chamber. Following use the handles are knotted together and the liner (30) and contents are removed and disposed of and the legs (4, 16) can then be folded under the seat portion (2) for compact storage.

Abstract: Portable cooking apparatus including a support base, a support column and a grill member. The support column is pivotally attached to the support base for movement from a first position, adjacent the support base, to a second position extending upwardly from the support base. The grill member is selectively positionable on the support column and removable therefrom to allow the support column to assume the first position.

Abstract: Three or more vertical posts or decorative support members are connected to the ends of three or more articulable, serially connected linkage members by a base support pin or member proximate the bottom end of each of the vertical posts through the holes in the ends of the linkage members. The linkage members are disposed parallel to the supporting surface having their free and overlapping ends connected between the bottom end of the vertical post and the base support pin. The vertical posts are each provided with a receptacle for holding a decorative or utilitarian object proximate the top thereof. The vertical posts can be of various lengths to achieve a variety of decorative effects. The linkage members are arranged at an angle to each other to provide 3 or more points of support for the assembled structure.

Abstract: A folding framework for a wheelchair has side frames interconnected by front and rear toggle braces each preferably formed from a pair of U-shaped arms of spring wire and a linkage extends between the hinges of the toggle braces. A securing arm is latchable with the linkage to hold the structure in an erected condition, the arrangement being such that the side frames are maintained parallel to one another. Direct drive motors may be mounted on wheels and to facilitate folding the hinges of the toggle brace may be offset relative to the fore and aft line of the vehicle so that when folded the side frames are offset relative to one another and the motors overlap. Preferably a diagonal brace extends below the folding framework to maintain parallel alignment of the side frames and a latching arm co-operates with the linkage between the toggle braces so that on lifting the latching arm, the linkage and the toggle braces are displaced in the closing direction.

Abstract: A sawhorse including a pair of V-cut-out or shaped side portions joined together by a vertical hinged portion. The sawhorse is openable for use and when folded side by side together can easily be carried.

Abstract: A collapsible support structure for supporting items, such as chair backs. The support structure, in an erect position, has two vertical members interconnected at their bottoms by a collapsible, preferably horizontal, member. Each end of the horizontal member is also pivotally connected to the other vertical member by a diagonal support member that extends between each end of the horizontal member and an upper portion of the opposite vertical member. When the structure is erect, the diagonal support members form an "X". Stiffening members, which are preferably generally vertical, are spaced from the vertical members and extend between the horizontal member and the diagonal support members. Both the horizontal member and the diagonal support members are formed of a plurality of pivotally interconnected links, at least one of which is modified to maintain the links in a desired angular position when the support structure is erected.

Abstract: A foldable chair frame formed by elongate rigid members which are interpivotted and foldable into a compact bundle of elements. The rigid members include a base formed by a laterally collapsible X-frame, two back members, two lower brace members connected to two upper brace members by knuckle joints, two seat support members and two upwardly extending back rest members. The invention resides in the provision of a laterally collapsible bracing frame located at the lower end of the back members adjacent the X-frame and arranged to be locked to hold the chair in the unfoldable (usable) position while permitting the back rest members to be moved between a forward position, suitable for a person sitting in the chair, to a backward position, suitable for a person reclining in the chair.

Abstract: A foldable stand for a bassinet or the like has four upright legs in a rectangular configuration when unfolded. At each end of the stand, the legs are rigidly interconnected by a horizontal bar supporting the corresponding end of the bassinet. Above the support bars at opposite ends of the stand, opposed U-shaped guard rails are pivotally mounted to the tops of the legs such that when deployed the guard rails bracket the lower ends of the bassinet. A diagonal cross brace is pivotally connected at one end to a point near the bottom of each leg and at the other end to the end of the U-shaped guard rail which is connected to the top of the corresponding leg on the same side of the stand. There are four such cross braces, two of which crisscross on each side of the stand and are pivotally interconnected like scissors so that the two end pairs of legs can be collapsed toward each other while remaining parallel as the cross braces close and the guard rails tip upright.

Abstract: A collapsible volume frame, when erected, presents in each of two opposite side elevations a side space frame defined by four points which if joined would form a quadrilateral; and presents further space frames in the four other aspects. The side space frames are braced by at least one frame element disposed transversely and articulated to them in a triangulated manner. Releasable means resist collapse of the volume frame. These side and further space frames are foldable so that the volume frame when collapsed forms a bundle.