Installation of flexible lining with flexible collar for lining lateral pipelines
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United States of America Patent
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N/A
Issued Date -
Sep 29, 2005
app pub date -
May 24, 2005
filing date -
Apr 23, 1990
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method for installation of a flexible resin impregnable liner for lining a lateral pipe which leads into a main pipe having at one end a flexible collar for installation at the location where the lateral liner meets the main, wherein after installation the collar extends along the interior of the main seating against the opening of the lateral. The flexible liner is installed by inserting the liner into the lateral pipe and using fluid under pressure to expand the lining against the lateral wall to form seals with the collar at the lateral/main pipe junction.
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