Earthquake activated valve

Details Earthquake activated valve Earthquake activated valve

1997-07-08

1998-12-29

Michalsky, Gerald A.

Fluid handling

Control by change of position or inertia of system

251 65, F16K 1736

Patent

active

058530193

ABSTRACT:
An earthquake activated valve assembly is attached to a gas line downstream of a gas meter. The valve assembly has a ball check which rolls to a closed position for the valve upon agitation, by for example an earthquake.

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patent: 5601108 (1997-02-01), Perry
patent: 5620022 (1997-04-01), Manoogian

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