Method and apparatus for circumferential interior treatment of pipe elbows
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United States of America Patent
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Aug 16, 2011
Grant Date -
Feb 12, 2009
app pub date -
Jul 25, 2008
filing date -
Jul 26, 2007
priority date (Note) -
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Abstract
A method for the circumferential interior treatment of pipe elbows, including a step of positioning a working member within a pipe elbow and moving the working member along a portion of a length of the pipe elbow between selected working positions, while concurrently manipulating the pitch and rotational positioning of the pipe elbow to maintain a concentric rotation of the pipe elbow about the working member.
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