Abstract: A collapsible mobility device is comprised of a base with a vertical support and a seat, all supported on wheels. The base is capable of being folded in upon itself. The vertical support is capable of being extended and retracted. The seat can be pivoted in an upward position. The wheels can be locked in various positions so that the device is capable of serving as a stool, a swivel chair, a wheelchair, a luggage rack, a walker and a wheeled cane. Ultimately the entire device can be collapsed to a size such that it can be stored in an overhead bin or under the seat of a commercial aircraft or other common carrier.

Abstract: Apparatus for making tactile impressions, such as a Braille matrix, on paper. The apparatus includes a paper receiver, pins, a driver, and a rotating print wheel. The receiver accepts paper, and the driver selectively extends pins toward the paper. The print wheel rolls over the pins, pressing the paper and pins in close contact. Consequently, the pins leave a tactile impression on the paper.

Abstract: A cart assembly for a partially-immobilized animal. It includes a plastic cradle, having wheels, adapted to support and partially encompass the hind portion of the animal. A harness, secured over the head of the animal, is fastened to the plastic cradle.

Abstract: A piston valve comprising a housing and a piston slidably engaged therein. The valve is especially adapted to be molded of plastic for use in fuel lines of lawn mowers and other small gasoline-powered engines. Also, a combination fuel tank and piston valve assembly.