Methods and apparatus for relining service pipe
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United States of America Patent
Stats
-
Mar 30, 1982
Grant Date -
N/A
app pub date -
May 13, 1980
filing date -
May 13, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus are provided for relining a fluid transmission pipe in which a deformable stiffener is inserted in one end of a plastic liner, the plastic liner is inserted into the transmission line with the stiffener first, a plastic sealant is placed around the end of the plastic liner in the transmission pipe and the stiffener is expanded intermediate its ends in the plastic liner to force the liner end into tight contact with the transmission pipe interior with sealant surrounding the contact area.
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