Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1979-03-19
1980-11-18
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405173, F16L 100, F16L 5512
Patent
active
042342686
ABSTRACT:
For lifting from deep sea beds a pipeline trunk, a device is disclosed which is composed by a compact framework of square outline which supports a sealing and pulling head and paired jaw assemblies having sloping surface seats to engage the outer surface of the pipe to be lifted, said jaws being actuated by hydraulic and pneumatic motive means so as to grip the pipe surface firmly. A pipe-cutting device is also provided, which has two discrete cutting units, and the sealing and pulling head is removable from said frame and can be both slid and rotated as to position it correctly coaxially with the pipe trunk.
REFERENCES:
patent: 3578233 (1971-05-01), Meister
patent: 3751932 (1973-08-01), Matthews
patent: 3842612 (1974-10-01), Arnold
patent: 4028903 (1977-06-01), Dietrich
patent: 4041719 (1977-08-01), Baugh
patent: 4068492 (1978-01-01), Reneau
patent: 4091514 (1978-05-01), Motes-Conners
Saipem S.p.A
Taylor Dennis L.
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