Patent ID: 7726913

Claim:
An apparatus for installing a subterranean pile comprising, a) a first elongate tube comprising a top and a bottom portion, an outlet located at said bottom, an exterior surface, an interior surface, and a interior profile located within the interior surface of said bottom portion; b) a second elongate tube being slidably located within said first tube, comprising a top and a bottom portion, an exterior profile located on the exterior of said second tube's bottom portion, said exterior profile adapted to mate with said interior profile of said first tube, wherein when said profiles come into contact with each other said outlet of said first tube is sealed, at least one opening on said second tube's exterior profile allowing communication between an interior and an exterior of said second tube; c) a collar assembly encircling proximate the upper portion of said tubes, comprising a first collar and a second collar, said first collar encapsulating said second collar, whereby, an annular space is provided for said second collar to move slidably within said first collar both longitudinally and rotationally, said second collar slidably encircling said first tube and securely affixed to said second tube, whereby when said second collar is displaced longitudinally along said first tube said second tube moves in unison with said second collar.