Fire extinguishers – Special applications – Condition responsive control
Patent
1980-07-07
1981-12-15
Spar, Robert J.
Fire extinguishers
Special applications
Condition responsive control
13762518, 137628, 169 16, 169 20, 251 634, A62C 3706
Patent
active
043054692
ABSTRACT:
A fire protection system including a discharge valve for discharging a pressurized extinguishing agent from a storage container into a distribution manifold. Discharge of the agent is induced by a pneumatic release mechanism that responds to the application of fluid pressure. Mounted in predetermined protection zones are a plurality of discharge nozzle arrays, each connected to the outlet of a distribution valve, the inlet of which is connected to the distribution manifold. Each distribution valve comprises a valve closure movable between a closed position that seals the valve inlet from the valve outlet and an open position that permits fluid flow therebetween, a pneumatic actuator for moving the valve closure to the open position in response to the presence of fluid pressure and a fluid pressure transfer mechanism that transmits fluid pressure from the actuator to the discharge valve release mechanism in response to movement of the valve closure to its open position.
REFERENCES:
patent: 1724891 (1929-08-01), Anderson
patent: 3865192 (1975-02-01), Dunphy
patent: 3949812 (1976-04-01), Hay
patent: 4082148 (1978-04-01), Wilms
Silverberg Fred A.
Spar Robert J.
Toupal John E.
Walter Kidde and Company, Inc.
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