Reinstatement of an existing connection in a lined conduit
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United States of America Patent
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Sep 13, 2011
Grant Date -
Dec 13, 2007
app pub date -
Apr 27, 2007
filing date -
Apr 27, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A process and apparatus for internally reinstating a connection in a lined conduit is provided. The connection may be a branch pipe or corporation stop that may or may not protrude into the conduit. It may be milled prior to lining. The process includes the step of locating the connection visually or with a probe, such as all eddy current probe. forming at an opening in the lining at the connection and then installing a T-nut with a sealing gasket facing the liner to hold the liner in place and form a seal between the T-nut and liner and the connection. The apparatus includes a motor coupled to a turntable with drive to install the T-nut and a supply of T-nuts mounted on a slide for loading the T-nuts onto the drive for installation of the T-nuts without having to remove the assembly between each installation.
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