Abstract: A bicycle that is powered by a hydraulic motor operatively associated with the rear wheel of the vehicle, with the actuation being by fluid under pressure delivered to the motor by a first rotary pump actuated by the feet of the rider, and a second pump that is energized by reciprocal up and down movement of the handle bars of the vehicle. The first and second pumps may be operated either independently or jointly. The bicycle includes a reservoir for hydraulic fluid and an accumulator for hydraulic fluid that is maintained in a pressurized condition therein. A manually operated, multiposition valve mounted on the vehicle permits the rider to control the flow of the hydraulic fluid. When the valve is in a first position and either the first or second pump actuated, hydraulic fluid is drawn from the reservoir, discharged through the motor to rotate the rear wheel of the vehicle, and the fluid thereafter discharged back to the reservoir.

Abstract: An inflatable enclosure that includes a tubular header that is anchored to the ground or to the floor, which header has a number of spaced valved apertures therein through which a pressurized gas may flow outwardly but not inwardly. First and second continuous pliable sheets have their peripheral edge portions bonded to opposite sides of the header. A number of inflatable pliable tubes are disposed side-by-side between the sheets and bonded thereto, with first ends of the tubes in communication with the valved apertures, and second end of the tubes in communication with normally closed valved means. A pressurized gas inlet is provided in the header. When pressurized gas is discharged into the header it flows through the one way valved apertures into the tubes to inflate the latter, with the inflated tubes and sheets cooperating to define an enclosure that extends upwardly above the header. The tubes and sheets when the valve means is placed in an open position collapse into a compact configuration.

Abstract: An air inflatable bed-like device for supporting either one or two users in outstretched positions, with the device including independently operable air actuated means to support the back of each user at a desired angle relative to the floor on which the device rests.