Fire extinguishers – Fluid systems – Gas
Patent
1977-11-09
1980-01-15
Love, John J.
Fire extinguishers
Fluid systems
Gas
169 26, 169 75, 169 52, A62C 3500
Patent
active
041834097
ABSTRACT:
Disclosed is an automatic fire-extinguishing system comprising one or more portable automatic fire-extinguishers placed at desired locations within a region wherein automatic extinguishment should be effected when a fire occurs therein. Each of the fire-extinguishers includes integrally a bomb containing a fire-extinguishing gas under a pressure condition and a gas jetting nozzle connected through a valve to the bomb. At least one fire sensor is arranged at a desired location within the region. Each fire extinguisher is provided with an electro-mechanical means for opening the valve, an electrical means for actuating the opening means and an internal gas pressure detecting switch, and; an electric control circuit formed by the combination of the electric circuit of the opening means, electrical actuating means and the gas pressure detecting switch which are connected in series. If a plurality of fire extinguishers are utilized, the electric control circuits of these fire extinguishers are connected in series in such a way that the electrical actuating means of one fire extinguisher is capable of being actuated in response to a fire signal from the fire sensor while the electrical actuating means of the other fire extinguishers are capable of being actuated by an output signal of the internal gas pressure detecting switch of an adjacent upstream fire extinguisher.
REFERENCES:
patent: 3713491 (1973-01-01), Grabowski
patent: 4013128 (1977-03-01), Davis
Love John J.
Security Patrols Co., Ltd.
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