Method of lining a passageway

Details Method of lining a passageway Method of lining a passageway

1987-01-28

1988-11-22

Cashion, Jr., Merrell C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156285, 156287, 156294, 264262, 264270, 264512, 264566, B32B 3108

Patent

active

047863455

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.

REFERENCES:
patent: 3132062 (1964-05-01), Lang
patent: 4064211 (1977-12-01), Wood
patent: 4135958 (1979-01-01), Wood
patent: 4456401 (1984-06-01), Williams

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