Process of making a socket on a pipe of thermoplastic material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 1, 2003
Issued Date -
N/A
app pub date -
Aug 7, 2000
filing date -
Feb 19, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of forming a socket on a pipe of thermoplastic material is disclosed. In the process, an end section of the pipe is heated in a heating station. Then, the pipe is transferred to a socket-forming station having a socket-forming mandrel. This is followed by the socket-forming mandrel being introduced into the pipe end section, heated to a suitable socket-forming temperature, and the end section being formed into a socket. Prior to the pipe end section being heated in the heating station, a support is introduced into the end section in order to internally support the end section. The support remains in the end section after the socket-forming mandrel is introduced into the pipe and in the process the support is pushed deeper into the pipe.
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