Patent ID: 7785039

Claim:
An assembly for driving pier sections and for foundation lifting, the assembly comprising: (a) a “T” bar having a stem, a left arm, and a right arm, the stem having upper and lower ends and having a vertically extending and rearwardly opening channel, said channel being fitted for receipt of the pier sections; (b) means for alternatively clamping and releasing pier sections, said means having an upper end; (c) attaching means interconnecting the stem's lower end and the clamping and releasing mean's upper end; (d) a sleeve having a bore fitted for sliding receipt of the pier sections; (e) left and right linear motion actuators, each having upper and lower ends, the upper ends of the left and right linear motion actuators being respectively fixedly attached to the “T” bar's left and right arms, and the lower ends of the left and right linear motion actuators each being connected to the sleeve; and (f) a foundation hooking member fixedly attached to and extending forwardly from the slide sleeve.