Pipe end forming methods and pipe clamp
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United States of America Patent
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Apr 28, 2020
Grant Date -
May 11, 2017
app pub date -
Jun 16, 2015
filing date -
Jun 16, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
Methods for forming a pipe end for a pipe having an inner surface lined with a liner are provided, wherein the pipe is cut at an axial location to provide a first end having an initial inner diameter defined by an inner surface of the pipe; and a length of the pipe is expanded from the first end to form an upset, bell end where an inner diameter of the upset, bell end is larger than the initial diameter, thereby defining an annulus between the inner surface of the pipe and the liner. A clamp for limiting a pipe's movement during various operations is also provided.
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