Patent ID: 7413168

Claim:
An automatic-slide-forward-bridge assembly 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, a lifting means mounted on the frame including a hydraulic cylinder attached along the longitudinal center thereof and a pair of parallel lift arms having rearward ends for being pushed by the cylinder and having forward ends extendable upward and having leveling pads pivotally attached to the outer sides thereof, wherein each leveling pad includes a generally rectangular plate oriented vertically having a rearward edge and an upper edge with a longitudinal flange extending outward from the upper edge thereon for use with the lift bridge, and for use with a means for biasing the lift bridge toward the forward ends of the lift arms, the lift bridge comprising: a rectangular plate having an upper surface, a bottom surface, a forward end, a rearward end, and a pair of sides, with each side having an inner longitudinal channel for engaging the outward flange of the respective leveling pad, and each side further having a finger extending rearward from the rectangular plate with a flange extended downward for abutting the rearward edge of the leveling pad; and means for biasing said bridge toward the forward ends of the lift arms.