Lining of pipelines and passageways

Details Lining of pipelines and passageways Lining of pipelines and passageways

1985-01-07

1986-11-11

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Prestressing solid body and uniting in stressed condition

156287, 156293, 264269, 264516, B29C 4132

Patent

active

046221964

ABSTRACT:
The invention provides that in inserting a resin impregnated liner into a pipeline or passageway and shaping same to the passageway surface, followed by curing of the resin to form a rigid lining inside the pipeline or passageway, there are placed in the passageway reinforcing circumferential coils or members which bond to the liner and provide extra resistance to compressive hoop stress.

REFERENCES:
patent: 3494813 (1970-02-01), Lawrence et al.
patent: 4064211 (1977-12-01), Wood
patent: 4368091 (1983-01-01), Ontsuga et al.
patent: 4432824 (1984-02-01), Cook et al.
patent: 4434115 (1984-02-01), Chick

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