Patent ID: 7648121

Claim:
A two-position lift bridge for use with a mobile commercial jack stand power unit, with the power unit including a generally rectangular frame having a forward end and a rearward end thereof; a pair of longitudinal side flanges extending upwardly therefrom, with the rearward end having a hydraulic cylinder attached along the longitudinal center thereof and having a rear cover extending from the side flanges at the rearward end of the frame and over the cylinder, a lifting means mounted on the frame including a pair of parallel lift arms having forward ends thereon with the forward ends each having a leveling pad pivotally attached to the outer side thereof; wherein each leveling pad includes a vertical generally rectangular portion that is attached to the outer side of the lift arm and having a horizontal upper edge, with a rectangular flange extending outward therefrom and having a vertical aperture therein, whereas the forward ends of the lift arms are extendable by the hydraulic cylinder, the lift bridge comprising: a rectangular plate having a length of about the length of the rectangular flanges of the leveling pads of the power unit, a width of about the width of and between the two rectangular flanges of the leveling pads of the power unit, a forward end, a rearward end, an upper surface, a bottom surface, a pair of sides, and the bottom surface of the sides having a pair of pins extending downward therefrom for engaging the apertures in the leveling pads, with said bridge for being positioned laterally and horizontally on the leveling pads at the forward ends of the lift arms, whereby the power unit is operable for use as a load lifting jack; and said bridge is alternatively for being positioned on the rear cover of the power unit, whereby the power unit is operable for use with a jack stand.