Abstract: The present invention is directed to multipositional accessory shelf support mechanism for placing items (e.g., hand-held items such as a computer mouse) on a shelfing surface so that such items are readily accessible while a user is operating his or her computer. Specifically, the present invention comprises a first and second bracket means connected to each other by at least one pair of linkage arms. The first bracket means is attached to a work surface, preferably a keyboard support tray. The second bracket means is capable of supporting an accessory shelf. In one alternative embodiment, the first and second bracket means are pivotally connected to each other. This linkage enables the accessory shelf positioned thereon to be vertically maneuvered upwardly or downwardly. The first bracket means may be removably attached to the work surface. This enables the support assembly to be removed from one area of the work surface and then attached to another area.

Abstract: An accessory has an elongate support member which is adjustable in length to accommodate attachment to various items such as strollers, wheelchairs, walkers, and the like, and has attachment means for removably attaching the support member thereto. At least one hook for carrying items such as a handbag, shopping bags, a diaper bag, etc., is formed upon the support member. A drink holder formed upon the support member adjusts in size to accommodate various sizes of drinks. The drink holder is pivotally mounted such that the drink remains upright regardless of the angular orientation of the support member. A drink holder used independently of the accessory is also disclosed.

Abstract: The invention relates to a latch mechanism for coupling a horizontal platform at a selected vertical position on a supporting structure, wherein the mechanism includes a frame member having a plurality of walls arranged to define an enclosed area and a multi-sided bracket for engaging the supporting structure to couple the frame member to the supporting structure. A locking bar extends through the frame member and bracket to engage with the supporting member and is movable between a locking position and an unlocking position. A blocking plate is coupled to the frame member and positioned outside of the enclosed area and is movable by gravity between a blocking position to prevent movement of the locking bar to the unlocking position and a releasing position to allow movement of the locking bar to the unlocking position.