Fluid controlled pipe connectors

Details Fluid controlled pipe connectors Fluid controlled pipe connectors

1976-02-17

1977-11-08

Schroeder, Werner H.

Pipe joints or couplings

With assembly means or feature

285 85, 285308, 285DIG21, F16L 3500

Patent

active

040572676

ABSTRACT:
Pipe connectors particularly useful in securing sections of an underwater marine riser together, including a pin received in a box which are secured to one another by a plurality of lock dogs mounted in the box and movable radially inwardly against a portion of the pin by fluid actuated pistons to force the pin and box firmly together, the dogs being retained in position by fluid operated lock pistons. The lock pistons are operated by fluid pressure to shift them to an unlocking position, the fluid actuated pistons being operated by fluid pressure to shift the dogs outwardly and disconnect the pin and box from each other.

REFERENCES:
patent: 3155401 (1964-11-01), Musolf
patent: 3228715 (1966-01-01), Neilon et al.
patent: 3455578 (1969-07-01), Hanes
patent: 3695633 (1972-10-01), Hanes
patent: 3851897 (1974-12-01), Piazza et al.

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