Abstract: According to the present invention, there is provided a novel auxiliary passenger seat cushion system adaptable to fit onto a passenger seat of a motorcycle. The auxiliary passenger seat cushion is used with a motorcycle seat having a width defined between opposite sides thereof. The passenger seat cushion system has a seat member having an upper surface configured for seating a passenger and an opposite lower surface positionable adjacent to the motorcycle seat and having a width greater than that of the motorcycle seat. The passenger seat cushion system also includes at least two stop members associated with the lower surface of the seat member and adjustably positionable relative to the width of the lower surface of the seat member so that one stop member is urgable against each of the opposite sides of the motorcycle seat. In another embodiment of the invention, the seat cushion member is composed of a number of separable sections for breakdown and storage into an auxiliary storage compartment.

Abstract: An expandable mesh frame is disclosed for stretching and holding a mesh fabric. The frame consists of four frame rails held together by four corner pieces. The corner pieces fit within the ends of the frame rails to construct the frame and in action with the frame rails provide a selective locking mechanism. When the frame rails are rotated in one direction, as when a fabric mesh is in place on the frame and tension is applied to the mesh, the corner pieces and the frame rail are in an alignment that allows for zero tolerance locking; however, when the frame rails are rotated in the oppposite direction, as when the frame is being disassembled, there is an excess of tolerance between the frame rail and corner pieces. The selective locking mechanism allows for a frame that is easily assembled and disassembled because of the excess tolerance when the frame is in the slack position.