Method of lining a passageway
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United States of America Patent
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-
Nov 22, 1988
Issued Date -
N/A
app pub date -
Jan 28, 1987
filing date -
Mar 24, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of lining a passageway comprising pulling a first flexible lining pipe sized to the passageway to be lined into the passageway, the first lining tube comprising at least one resin absorbent layer impregnated with curable synthetic resin, and by the eversion into the first lining tube of a second flexible lining tube sized to the first tube inner diameter, to the inner surface of which a second lining tube before eversion is applied an initiator for the resin impregnating the first lining tube whereby, as the second lining tube everts into and along the first tube when in the passageway, the first tube is pressed against the passageway surface by fluid pressure used to evert the second tube, and also the initiator comes into contact with the resin of the first tube and commences and effects cure of the same.
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