Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1985-05-15
1986-01-07
Husar, Cornelius J.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405168, 441 10, F16L 104, B63B 2214
Patent
active
045631085
ABSTRACT:
A pressure-actuated release mechanism is assembled using a prebuckled pipe segment as a pressure-triggering mechanism. The trigger mechanism is employed to attach buoys to an offshore structure or pipeline under construction. The attached buoys move with the structure or newly added pipe string toward the sea bottom, easing the descent. As a preselected external pressure is sensed, the buckle in the pipe segment propagates and the trigger mechanism actuates, releasing buoys from the structure or pipeline as each buoy in turn reaches the same depth or pressure.
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patent: 3727417 (1973-04-01), Shaw
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patent: 4015435 (1977-04-01), Shaw
patent: 4020514 (1977-05-01), Bourgeois
patent: 4063430 (1977-12-01), Lamy
patent: 4067199 (1978-01-01), Jegousse
Husar Cornelius J.
Shell Oil Company
Stodola Nancy J.
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