Patent ID: 7975986

Claim:
An all-air jack for lifting a vehicle load, the jack comprising: an upper frame assembly and a lower frame assembly; steel guide bars on either side of the upper and lower frame assemblies to ensure movement of the jack is unidirectional and stabilized; an upper plate at a top end of the upper frame assembly adapted to support the vehicle load; an upper air bellow positioned in the upper frame assembly; a lower air bellow positioned in the lower frame assembly; an upper air bellow attachment plate fastened to the upper air bellow; a lower air bellow attachment plate fastened to the lower air bellow and parallel to the upper air bellow attachment plate; air bellow plate fasteners fastening together the upper air bellow attachment plate and the lower air bellow attachment plate; a coil air tube in fluid communication with the upper air bellow; an upper air bellow air feed tube in fluid communication with the coil air tube; a lower air bellow air feed tube in fluid communication with the lower air bellow; and a main air supply in fluid communication with the coil air tube and the lower air bellow air feed tube to supply air thereto, wherein when air flow is supplied from the main air supply, air flows to the lower air bellow via the lower air bellow air feed tube and air flows to the upper air bellow through the upper air bellow air feed tube and the coil air tube to inflate the lower and upper air bellows an equal amount; and wherein the air coil extends as air is supplied thereto to raise the upper plate of the jack.