Method of forming an end seal for a pipe liner
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United States of America Patent
Stats
-
Feb 20, 1990
Grant Date -
N/A
app pub date -
Jul 26, 1988
filing date -
Jul 26, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In order to effectively seal the space between a preexisting pipe and a repair lining that has been inserted into the pipe and radially expanded in order to generally conform to the interior of the pipe, a form is inserted between the ends of the pipe and lining before the lining is radially expanded, the lining therefore conforms to the interior of the pipe along its length and to the interior of the form at its ends, the form is removed, a sealing ring is inserted into the space left by the form and is there sealingly compressed, and an element is inserted into that space axially outside the sealing ring in order to retain it in position and preferably to compress it axially of the pipe.
First Claim
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Cited Art Landscape
Patent Citation Ranking
- 10 Citation Count
- B23P Class
- 0 % this patent is cited more than
- 35 Age