Patent ID: 8807182

Claim:
An automatic tire pressurizing and regulating system for maintaining a predetermined air pressure in a tire and wheel assembly, comprising one or more pumping devices supported on a belt, the belt having fluid pathways for transporting fluid from an ambient air source to an interior chamber of the tire and wheel assembly, a fill valve in communication with the fluid pathways and the pumping devices, the pumping devices having a regulating and pressurized reservoir, a make-up reservoir, and a piston continuously separating the two reservoirs, wherein the fill valve comprises a valve body having a fluid conduit system, the fluid conduit system being in fluid communication with a pressurized air supply port and (1) the interior chamber of the tire and wheel assembly, the regulating and pressurized reservoir, an ambient air supply, and the make-up reservoir, said make-up reservoir fluidly isolated from said regulating and pressurized reservoir within the pumping devices except when said fill valve operates to inject into or release air from the interior chamber, of the tire and wheel assembly, and regulating and pressurized reservoir.