Earthquake fire safety system

Details Earthquake fire safety system Earthquake fire safety system

1981-11-18

1983-11-15

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

200 6147, F16K 1736

Patent

active

044149948

ABSTRACT:
An earthquake safety system employing a shock triggered electrical switch for opening electrical contacts in the cables between the power utility input to a building and the distribution circuit breaker box. The switch is adjustable to be closed by earthquakes of predetermined magnitudes. Normally-closed solenoid gas and water valves coupled to breakers in the circuit breaker box will close upon the opening of the contacts to prevent gas fire and water damage and loss of water main pressure.

REFERENCES:
patent: 1666122 (1928-04-01), Denniston
patent: 2207406 (1940-07-01), Jones
patent: 3634885 (1972-01-01), Barkley
patent: 4263928 (1981-04-01), Kobayashi

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