Patent ID: 8662541

Claim:
A fitting connectable to an end portion of a pipe, the fitting comprising: an insert member having a leading end and a generally cylindrically-shaped body configured to be received at least partly within the end portion of the pipe, the body of the insert member having a forward section located adjacent the leading end and a ramp section which tapers radially inward away from the forward section; a sealing member coupled to the forward section of the body of the insert member in spaced relation to the leading end thereof and configured to be received at least partly within the end portion of the pipe when the insert member is received at least partly within the end portion of the pipe for sealingly engaging an inner surface of the end portion of the pipe; a retention member coupled to the ramp section of the body of the insert member adjacent the sealing member and configured to be received at least partly within the end portion of the pipe, the retention member engaging the inner surface of the end portion of the pipe to help frictionally secure the end portion of the pipe on the insert member when the insert member is received at least partly within the end portion of the pipe; and the retention member deforming in shape to impart an increased retention force to the end portion of the pipe in response to a force tending to decouple the end portion of the pipe from the insert member.