Shock actuated valve

Details Shock actuated valve Shock actuated valve

1989-04-24

1990-04-10

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

251 74, F16K 1736

Patent

active

049151223

ABSTRACT:
A shock actuated valve including a first structure mounted to swing about a first axis and which is releasably retained by a first latch in a first position, with the latch being automatically releasable when the device is subjected to earthquake forces or other shock forces, and a second structure including a valve and which is mounted to swing about a second axis and is releasably retained in an open valve position by a second latch controlled by the first swinging structure. When shock forces cause release of said first structure for swinging movement from its reset position, such swinging movement automatically releases the second structure and its valve for spring urged swinging movement in a direction closing the valve.

REFERENCES:
patent: 3791396 (1974-02-01), Nelson
patent: 4185507 (1980-01-01), Domyan
patent: 4475565 (1984-10-01), Keller et al.
patent: 4503717 (1985-03-01), Keller et al.
patent: 4513629 (1985-04-01), Keller et al.
patent: 4542760 (1985-09-01), Flauiani
patent: 4603591 (1986-08-01), Sibley et al.

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