Patent ID: 7478704

Claim:
A lift cart comprising: a frame, a wheel on said frame permitting the cart to be moved over a surface, brake means on said frame and adapted to act against said wheel to prevent movement of the cart over the surface, a lift platform mounted on said frame for vertical movement thereon, an actuating system for effecting movement of said platform, a tank for containing compressed air mounted on said frame, and air conduit means for directing compressed air from said tank to said brake means and said actuating system, said actuating system comprising a reservoir containing hydraulic fluid, a lift cylinder, a hydraulic fluid conduit connecting said reservoir and said lift cylinder, and a pneumatically actuated shut-off valve in said hydraulic fluid conduit, a manually actuated valve in said air conduit means for controlling the flow of compressed air to said reservoir, whereby compressed air from the tank may controllably be admitted to the reservoir containing hydraulic fluid for actuating the lift cylinder and effecting movement of the platform.