Patent ID: 8506206

Claim:
A composite pile comprising two or more rigid hollow tubes interconnected together end-to-end by a pile connector, a boring head secured to a leading lower end of a lowermost one of said tubes, and a force transmitting member removably connectable to a top end of an uppermost one of said rigid hollow tubes to receive a driving force for driving each said two or more rigid hollow tubes into the soil, said pile connector having opposed axially aligned projecting pile connecting members extending from opposed parallel faces of a transverse impact transfer disc and extending a predetermined distance in adjacent open ends of said tubes to maintain said tubes in axial alignment with one another, said impact transfer disc being dimensioned to extend to an outer periphery of circumferential end edges of said rigid hollow tubes interconnected end-to-end and to receive said end edges in contact with said opposed parallel faces to transfer said driving force substantially uniformly between said end edges of said tubes interconnected together, and wherein said pile connecting members are formed by a pair of inter-engaging pile connecting plates, said pile connecting plates being dimensioned to extend said predetermined distance and in frictional engagement with an inner side wall of said rigid hollow tubes from said adjacent open ends, interconnection means to interconnect said pile connecting plates together in transverse relationship along a central longitudinal axis thereof, said impact transfer disc having cross-slots dimensioned for receiving said interconnected pile connecting plates therethrough, and removable connection means to secure said interconnected pile connecting plates to said impact transfer disc at substantially mid-length of said pile connecting plates.