Alarm for removal of a fire extinguisher

Details Alarm for removal of a fire extinguisher Alarm for removal of a fire extinguisher

1975-09-02

1977-03-29

Swann, III, Glen R.

Communications: electrical

Systems

Call station

169 51, 340274R, G08B 1308

Patent

active

040152502

ABSTRACT:
A source of electrical energy, a normally closed momentary contact switch, and an electrically energizable warning device are connected in a series circuit and mounted with respect to a fire extinguisher mount such as a cabinet or bracket so that the switch is held open when the extinguisher is fully installed in the mount, but is allowed to close as an incident to removal of the extinguisher from the mount, as by opening the cabinet door. A manually operable switch may be added for disabling the normal circuit operation when desired. The circuitry may be contained in a housing hingedly connected to the mount, to facilitate servicing the circuit without removing the extinguisher.

REFERENCES:
patent: 2279933 (1942-04-01), Wells
patent: 2683260 (1954-07-01), Lavelle
patent: 2965890 (1960-12-01), Robillard
patent: 3067822 (1962-12-01), Hattenhauer
patent: 3340522 (1967-09-01), Chick et al.
patent: 3644920 (1972-02-01), Cartledge
patent: 3797006 (1974-03-01), Reininger
patent: 3842410 (1974-10-01), Gopperton
patent: 3893095 (1975-07-01), DeJong

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