Lining of pipelines and passageways

Details Lining of pipelines and passageways Lining of pipelines and passageways

1989-02-10

1990-12-25

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

138 98, 156287, 156294, 156 94, 264 36, 264573, 264269, 425 11, B29C 6336

Patent

active

049801163

ABSTRACT:
In order to line a pipeline or passageway active in conveying effluent without interrupting the flow of effluent therethrough, a first bypass conduit is passed through the section to be lined before the lining is inserted and the effluent is pumped therethrough, a second bypass conduit is passed through the lining after it has been inserted but before is has been fixed in position, the effluent is then pumped through that second conduit, the lining is fixed in position, normal effluent flow resumes, and the second conduit can be removed for future use.

REFERENCES:
patent: 3052265 (1962-09-01), Nevill
patent: 4009063 (1977-02-01), Wood
patent: 4064211 (1977-12-01), Wood
patent: 4350548 (1982-09-01), Zenbayashi et al.
patent: 4385885 (1983-05-01), Wood
patent: 4589446 (1986-05-01), Allen
patent: 4643855 (1987-02-01), Parkes et al.
patent: 4671840 (1987-06-01), Renaud
patent: 4678370 (1987-07-01), Allen
patent: 4786345 (1988-11-01), Wood

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