Emergency pipeline shut-off apparatus

Details Emergency pipeline shut-off apparatus Emergency pipeline shut-off apparatus

1979-04-16

1981-11-10

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

138 94, 137 15, 137318, F16L 5510, B23B 4108

Patent

active

042992559

ABSTRACT:
An emergency pipeline shut-off apparatus for interpositioning within a fluid transmitting pipe circuit in which a resilient plug stopper is capable of alternative placement between an open and closed position to allow or block passage of the fluid respectively. Remote stopper activation elements cooperate with control members and locking features to position the stopper in the desired open or closed configuration followed by the automatic locking of the stopper in that particular position. The remote stopper control device can be expressly reactivated to be withdrawn from its locked position.

REFERENCES:
patent: 2588188 (1952-03-01), Weisman
patent: 3091260 (1963-05-01), Milanovits et al.
patent: 3685544 (1972-08-01), Ball et al.
patent: 3948282 (1976-04-01), Yano
patent: 4019541 (1977-04-01), Koppl

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