Patent ID: 8888413

Claim:
A pile coupling for connecting a hollow end portion of a rotatable cylindrical first pile shaft to an end portion of a second pile shaft, the pile coupling comprising: a metallic body formed as one piece having a first end, a second end opposite said first end, and a longitudinal axis extending between said first end and said second end, said body comprising a socket having a side wall adapted to closely receive the end portion of the second pile shaft, said socket extending axially into said body from said second end to a socket bottom which faces toward said second end and confronts the second pile shaft, when assembled; a shoulder between said first end and said second end extending laterally outward from said body and facing toward said first end; a cylindrical portion adapted to fit closely within the hollow end portion of the first pile shaft, said cylindrical portion extending axially from said first end toward said second end, beyond said socket bottom and up to said shoulder, which confronts the first pile shaft when assembled; and a first pair of aligned transverse fastener holes in said cylindrical portion between said shoulder and said socket bottom and extending through said side wall of said socket.