Patent ID: 7165915

Claim:
An apparatus for stabilizing the structural foundation of a building having a concrete slab, comprising: an elongated screw anchor including a shaft with a lower end and an upper end and auger threads extending from said lower end for screwing into the earth with the upper end exposed at the level of the earth, jacking tool assembly including a mounting sleeve telescopically mounted on the upper end of said shaft of said screw anchor and a jack and pile bearing plate connected to said mounting sleeve for abutting the upper end of said shaft of said screw anchor, lifting screw openings formed in said jack and pile bearing plate on opposite sides of said mounting sleeve, a foundation-lifting bracket positioned below said jack platform including an L-shaped foundation engaging plate having a laterally extending support flange for engaging beneath the lower edge of a foundation and an upwardly extending positioning flange for engaging against the side of the foundation, parallel strengthening plates mounted to said laterally extending support flange and said upwardly extending positioning flange of said L-shaped foundation engaging plate for straddling said mounting sleeve, a pair of inverted elevator brackets mounted on opposite sides of said parallel strengthening plates, each inverted elevator bracket being L-shaped with a laterally extending plate mounted to said upwardly extending flange of said L-shaped foundation engaging plate and to one of said parallel strengthening plates, and an upwardly extending plate mounted to said upwardly extending flange of said L-shaped foundation engaging plate, and forming with said parallel strengthening plates and said L-shaped foundation engaging plate a pair of laterally spaced U-shaped receptacles, and a lifting screw opening formed in said laterally extending plate of each said inverted elevator brackets, connector openings formed in said upwardly extending positioning flange of said L-shaped foundation engaging plate positioned laterally of said inverted elevator brackets such that keeper bolts can be extended through said upwardly extending positioning flange of said L-shaped foundation engaging plate and into the foundation for connecting the L-shaped foundation engaging plate to the foundation, and lifting screws extending vertically through said lifting screw openings of said inverted elevator brackets and through said lifting screw openings of said jack and pile bearing plate, and connectors mounted to the ends of said lifting screws for suspending said foundation-lifting bracket from said jacking tool assembly.