Flexible hard pipe

Details Flexible hard pipe Flexible hard pipe

1989-03-08

1989-09-05

Bryant, III, James E.

Pipes and tubular conduits

Distinct layers

Bonded to each other

138122, 138129, 138154, 138173, 138150, F16L 1111

Patent

active

048629243

ABSTRACT:
A flexible hard pipe in which over a soft inner pipe wall a hard belt-like member is helically wound. The belt-like member has a double-hook shape in which a flat inner surface is fused to the inner pipe wall. A raised hook portion overlaps a hook portion of the fused portion of a neighboring wrap.

REFERENCES:
patent: 3204666 (1965-09-01), Lindsay et al.
patent: 4140154 (1979-02-01), Kanao
patent: 4383555 (1983-05-01), Finley
patent: 4403631 (1983-09-01), Abdullaev et al.
patent: 4487232 (1984-12-01), Kanao
patent: 4531551 (1985-07-01), Eichelberger et al.
patent: 4620569 (1986-11-01), Von Glanstatten et al.

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