Patent ID: 9022695
Filing Date: 2015-05-05
Classification: E02D

Abstract:
1. In combination, pressurized hydraulic fluid, and an apparatus for securing a hollow pile in the ground, the pile being tubular and having a wall with an inner surface, the apparatus being positionable within the pile and comprising: a housing receiving said pressurized hydraulic fluid, having an interior and having a plurality of circumferentially spaced-apart apertures; a plurality of circumferentially spaced-apart protrusions slidably extending through the apertures of the housing, each of the protrusions having an arcuate-shaped stopping member, the protrusions radially extending outwards and being moveable outwards from the housing for selectively deforming portions of the wall of the pile and creating anchor knobs in the pile upon said pressurized hydraulic fluid being applied to the interior of the housing; and a plurality of circumferentially spaced-apart support members operatively connecting to and extending outwardly from the housing, the support members having outer surfaces that are arcuate-shaped and being shaped to selectively abut and support the inner surface of the wall of the pile when the anchor knobs are being formed, the support members being moveable from a retracted position in which the support members are radially inwardly spaced-apart from the inner surface of the wall of the pile to an extended position in which the support members abut the inner surface of the wall of the pile, and wherein the arcuate-shaped stopping members of the protrusions are shaped to abut the support members upon the anchor knobs being formed and are shaped to inhibit radially outwards movement of the protrusions thereafter.