Patent ID: 7464914
Filing Date: 2008-12-16
Classification: B66F

Abstract:
1. A power unit for use with a jack stand comprising: a rectangular frame base with a forward end having a horizontal forward support plate for receiving a jack stand therein and a rearward end having a vertical rear plate with a central aperture for receiving an actuator shaft therein, and having a left shoe with a longitudinal track on the inner side thereof, and having a right shoe with a longitudinal track on the inner side thereof; a screw-threaded actuator shaft having a distal portion, and a proximal end extending through the aperture of the rear plate with the proximal end rotatably retained within the aperture and further for use with an external handle to facilitate rotation thereof; a lateral axel having a central threaded aperture therein for receiving the distal end of said threaded actuator shaft; and having guide caps extending from the ends thereof into the respective left and right longitudinal track of the shoes, with said lateral axel slidably retained within the longitudinal tracks; a pair of lift arms, acting in parallel, each having a forward end and a rearward end with the rearward end pivotally attached to said lateral axel adjacent the respective guide cap; a pair of connecting arms, acting in parallel, each having a forward end pivotally attached near the forward end of the respective left shoe and right shoe of said frame base, and having a rearward end pivotally attached at a pivot point on said lift arm; and a pair of leveling pads, acting in parallel, each pivotally attached to the forward end of said respective lift arm for providing a level lifting platform.