Method of lining pipelines and passageways
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United States of America Patent
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-
Apr 23, 1996
Grant Date -
N/A
app pub date -
Jul 1, 1994
filing date -
Sep 6, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A lining process for a pipeline or passageway employs a resin impregnated lining tube which is everted into a collapsed preliner tube in the passageway to be lined. A constraining element allows the preliner tube to expand only in the vicinity of the everting face so that a pool of resin is formed between the everting face and the preliner tuber adjacent to the constraining element. In this manner, air is prevented from communicating with the everting face.
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