Multi-component tubular structure for underwater conveyance of f

Details Multi-component tubular structure for underwater conveyance of f Multi-component tubular structure for underwater conveyance of f

1986-10-29

1988-04-26

Bryant, III, James E.

Pipes and tubular conduits

Combined

138120, 138178, 405171, 405172, F16L 104

Patent

active

047398000

ABSTRACT:
A multi-component tubular structure for underwater conveyance of fluids comprising a plastic pipe, annular concrete ballast weights threaded along said pipe, and steel pulling rods. The pulling rods give the tubular structure tensile strength needed for underwater pipe laying, while the annular weights give overall uniform mechanical protection to the plastic pipe and a controlled negative buoyancy during the laying operation of the empty pie, and stability for the operating pipe. The tubular structure of the present invention combines the known advantages of plastic pipe, i.e., high flexibility, resistance to corrosion, with the advantages of coated steel pipe, i.e., ease of laying by the "bottom pull" method, high immersed wieght, and overall external mechanical protection.

REFERENCES:
patent: 2419053 (1947-04-01), Bennett
patent: 3162214 (1964-12-01), Bazinet
patent: 3267969 (1966-08-01), Mallard
patent: 3290429 (1966-12-01), Prescott et al.

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