Abstract: A stool includes a collapsible frame, a triangular seat and a back. The frame includes a bottom hub with three telescopingly adjustable legs and enlarged feet. A top hub is rotatably coupled to the bottom hub for 360 degree rotation, and includes three seat-supporting arms that extend from the top hub, and a pair of uprights that extend from two of the arms. The seat hook-attaches to loops on ends of the arms, and the back extends between the uprights. The legs and arms are pivoted to their respective hubs, but the pivots are slightly frictional so that the arms and legs remain in adjusted positions, with stops on the hubs stopping the legs and arms in their upwardly-pivoted use positions. The frictional pivots include lubricious plastic that facilitates quiet unfolding of the stool, which is important when hunting.

Abstract: A tree stand for hunting includes a frame constructed to stably engage a tree trunk in an elevated position, a seat pivoted to the frame, and a back support pivotally supported by a link mechanism to a telescoping upright of the frame above the seat. Vertical and angular adjustment of the back support allows the hunter to adjust the back support for optimal ergonomic lumbar support and for user preference. Further, the back support and seat can be pivotally adjusted to provide a partial-standing perched position for the hunter. Also, the tree stand can be folded flat for storage and transport.

Abstract: A cam-type door latch assembly comprises a handle and an arm assembly terminating in a finger-like cam and pivotal to bring the cam into engagement with a conventional locking pin assembly. The arm assembly is selectively adjustable for lengthening or shortening the arm assembly, thereby adjusting the contact force between the cam and the locking pin and, consequently, the door closing force. The arm assembly comprises a sleeve enclosing a wedge nut and a cam arm having offsetting inclined faces which are tightened against each other with a threaded connector to lock the wedge nut and cam arm in position in the sleeve when the cam has been properly adjusted relative to the locking pin.

Abstract: A cam-type door latch assembly comprises a handle and an arm assembly terminating in a finger-like cam and pivotal to bring the cam into engagement with a conventional locking pin assembly. The arm assembly is selectively adjustable for lengthening or shortening the arm assembly, thereby adjusting the contact force between the cam and the locking pin and, consequently, the door closing force. The arm assembly comprises a sleeve enclosing a wedge nut and a cam arm having offsetting inclined faces which are tightened against each other with a threaded connector to lock the wedge nut and cam arm in position in the sleeve when the cam has been properly adjusted relative to the locking pin.