Jerry Bob Stephens

US Patent:

50060155, Apr 9, 1991

Filed:

Mar 12, 1990

Appl. No.:

7/491721

Inventors:

Jerry B. Stephens - Paris TX
Richard E. Jackson - Powderly TX
David H. Conder - Powderly TX

International Classification:

E02D 720

US Classification:

405230

Abstract:

Apparatus for simultaneously driving two parallel pile members that function to raise and reposition building foundation structures. The apparatus consists of a foundation support member, a frame assembly removably attached to the foundation support member, and a hydraulic ram and pile gripping assembly supported within said frame assembly. Alternately, the apparatus consists of a founation support member, a pile gripping assembly and a hydraulic ram removably interconnected between said foundation support member and said pile gripping assembly. As the hydraulic ram is actuated, the pile gripping assembly grips the pile members upon the start of downward movement relative to the pile members and completion of the stroke drives the pile members into the earth to a predetermined point of resistance. The apparatus then functions to raise and reposition the foundation after which the foundation is held in place by the pile members.

US Patent:

51353350, Aug 4, 1992

Filed:

Feb 8, 1991

Appl. No.:

7/652666

Inventors:

Jerry B. Stephens - Paris TX
Richard E. Jackson - Powderly TX
David H. Conder - Powderly TX

International Classification:

E02D 500
E02D 2748

US Classification:

405230

Abstract:

Apparatus for simultaneously driving two parallel pile members that function to raise and reposition building foundation structures. The apparatus consists of a foundation support member, a frame assembly removably attached to the foundation support member, and a hydraulic ram and pile gripping assembly supported within said frame assembly. Alternately, the apparatus consists of a foundation support member, a pile gripping assembly, and a hydraulic ram removably interconnected between said foundation support member and said pile gripping assembly. As the hydraulic ram is actuated, the pile gripping assembly grips the pile members upon the start of downward movement relative to the pile members and completion of the stroke drives the pile members into the earth to a predetermined point of resistance. The apparatus then functions to raise and reposition the foundation after which the foundation is held in place by the pile members.