Pressure-expandable conduit liner

Details Pressure-expandable conduit liner Pressure-expandable conduit liner

1998-01-22

1999-08-03

Brinson, Patrick

Pipes and tubular conduits

Repairing

Patches

138141, 138128, 138174, 138124, 428 362, F16L 5518, F16L 914

Patent

active

059311991

ABSTRACT:
Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.

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