Internal girth weld liquid coating cart
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United States of America Patent
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Aug 11, 2015
Grant Date -
Oct 17, 2013
app pub date -
Jul 26, 2011
filing date -
Jul 26, 2010
priority date (Note) -
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Abstract
The invention relates to a machine for coating the interior of a pipe. The machine can be pulled through and positioned within a pipe or pipeline by a internal pipe tractor, and can be used to apply viscous liquids, including two part epoxies and urethanes, to the interior wall of the pipe. The machine is typically used for the overcoating of portions of pipe having defects in their internal coatings, for example, at their girth welds.
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