Flexible pipe

Details Flexible pipe Flexible pipe

1984-03-19

1985-10-29

Bryant, III, James E.

Pipes and tubular conduits

Combined

With end structure

138129, 138130, 138132, 138133, 138174, 285149, F16L 1116

Patent

active

045495815

ABSTRACT:
A flexible pipe for transporting various fluids such as oil, gas, water or the like. The flexible pipe comprises at least one internal plastic sheath which may be provided on an inner carcass, a short pitched metal armor layer provided on the internal plastic sheath to mainly share a circumferential force due to inner pressure, a long pitched metal armor layer provided on the short pitched metal armor layer to mainly share a longitudinal force and an external plastic sheath provided on the long pitched armor layer. The short pitched armor layer includes a first layer portion of metal strip having a recess provided in one surface and spirally wound with an opening of the recess outwardly directed and a second layer portion of metal strip having a recess provided in one surface and spirally wound with an opening of the recess of the metal strip for the second layer portion inwardly directed and with legs formed by the recess engaged across the recesses of adjacent turns of the metal strip for the first layer portion. The legs of the metal strips for the first and second layer portions have the facing surfaces outwardly inclined toward the opening of the recess.

REFERENCES:
patent: 1756698 (1930-04-01), Oden
patent: 3531143 (1970-09-01), Horvath et al.
patent: 3578029 (1971-05-01), Cullen et al.
patent: 3874064 (1975-04-01), Chevalier
patent: 3936118 (1976-02-01), Thiery et al.
patent: 4273160 (1981-06-01), Lowles
patent: 4326561 (1982-04-01), Kutnyak
patent: 4403631 (1983-09-01), Abdullaeu et al.

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