IN-PIPE EVERSION DEVICE AND METHOD OF USE
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United States of America Patent
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app pub date -
Feb 11, 2011
filing date -
Feb 11, 2011
priority date (Note) -
Abandoned
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Abstract
An eversion and installation device and method for in-pipe use to line an underground pipe with a resin impregnated lining tube. A pressure vessel has a slotted gasket and a flapper, along with rollers allowing a collapsed lining tube to be extended into and through the vessel and cuffed and secured to the leading end of the vessel. The vessel is then lowered through a manhole passage onto the floor or trough of the pipe before fluid pressure is applied to evert the tube into the pipe.
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