Importance

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Abstract

A pipe joint has a tubular retainer for inserting pipes to be coupled therein, a joint body fitted over the retainer and having a socket holder, and a tubular socket movably disposed around the socket holder. When connecting the pipes to each other, the pipes are inserted into the retainer and positioned therein, the joint body is fitted over the retainer, and the socket holder is brought over the socket holder until the socket is held against a positioning member on the socket holder. A spring in a positioning groove in the socket holder is resiliently displaced radially outwardly partly into a smaller-diameter recess in the socket while partly remaining in the positioning groove, whereupon the socket is retained on the joint body against removal. To disconnect the pipes from each other, the positioning member is removed out of abutment against the socket, and the socket is moved toward a step of the socket holder to cause the spring to be moved from the smaller-diameter recess into a larger-diameter recess contiguous thereto. The spring is now displaced from the positioning groove to disengage the socket from the joint body. The socket is then released from the joint body.

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First Claim