Abstract: An improved trolley for use on a track. The improved trolley is of a sandwich construction having a wear resistant interior and a pair of metal end plates. The wear resistant material is preferably plastic or other material designed to avoid damaging a track along which the trolley rides. The end plates are preferably stainless steel and of a diameter greater than the diameter of the center wheel to prevent the trolley from becoming dislodged from a track. By providing a sandwich of long wearing and non brittle materials, the longevity of the trolley is increased and corrosion concerns associated with prior art devices is substantially alleviated.

Abstract: An improved chair back tilt apparatus for a wheelchair. The apparatus includes a seat and a back support pivotally coupled to the seat. A backrest is slidably coupled to the back support and coupled to the seat by a rigid L-shaped support. A linear motion actuator is secured between the seat and the back support to recline the seat. As the seat reclines, the L-shaped support pulls the backrest downward. The L-shaped support also forces the backrest upward as the seat is returned to its original position thereby substantially eliminating back shear associated with prior art back tilt systems.

Abstract: A secured container closure system is provided for preventing access to the container's contents by small children while allowing ease of access to the container contents by persons of limited strength or dexterity. The system is provided with a first cap having a smooth exterior and being provided with a catch. The first cap is provided within a second cap which has an opening which allows access to the catch. Both the exterior of the first cap and the interior of the second cap are smooth to reduce torque transfer between the second cap and the first cap. A key is provided which may be extended through the opening and engaged to the catch to allow torque transfer between the second cap and first cap for either opening or closing the container. The key may be of an extended length or secured to a wall to allow greater leverage in opening or closing the container.