Patent ID: 9650753
Date: 2017-05-16
CPC Classifications: E02D,F24T,Y02E

Claim:
1. A multi-purpose, sealable coupler for use in a pipe pile assembly having an axis of rotation, the coupler to receive a socket for imparting a driving force to pipe pile segments and the coupler and to strengthen and seal the connection between pipe pile segments, the coupler comprising: an open cylinder having an internal stop ring, wherein the internal stop ring divides a first internal portion having threads from a second unthreaded portion, the threads of the first internal portion interchangeably receives a grout plug assembly in removable, threaded engagement and one of the pipe pile segments in drivable, threaded engagement, the internal stop ring extends radially inward toward the axis of rotation further than the threads such that the internal stop ring inhibits over-threading of one of the pipe pile segments and serves to sealably seat the grout plug assembly against the internal stop ring when the grout plug assembly is removably threaded fully into the first internal portion and inhibits over-insertion of one of the pipe pile segments into the second unthreaded portion; and an external ring configured to receive the socket and to transfer the driving rotational force from the socket through the coupler to the pipe pile assembly.