Patent ID: 9598271
Date: 2017-03-21
CPC Classifications: B66F

Claim:
1. A portable automobile lift including a pair of mechanically unconnected jack assemblies, each said jack assembly comprising: a) a base, a support platform and a pair of links connecting said base to said support platform; b) a hydraulic actuator connected between said base and said support platform and operable to move said support platform between a lowered position adjacent to said base and at least one raised position spaced above said base, said actuator having a piston, a base end port and a rod end port, a first one of said ports providing fluid communication between a source of pressurized hydraulic fluid and a first side of said piston for raising said support platform; and c) a power assist canister connected to said other of said ports of said actuator, said power assist canister holding a charge of pressurized compressible fluid, said pressurized compressible fluid exerting a force on a second side of said piston and assisting in lowering of said support platform when said pressurized hydraulic fluid is drained away from said first side of said piston.