Fire extinguishing system

Details Fire extinguishing system Fire extinguishing system

1974-11-12

1976-04-13

Love, John J.

Fire extinguishers

Special applications

Condition responsive control

169 9, 160 20, A62C 3706

Patent

active

039498123

ABSTRACT:
A fire extinguishing system includes a container of extinguishing agent and a valve for controlling the discharge of the extinguishing agent. The discharge control valve is opened and closed by a pneumatic cylinder operated by pressurized gas through a solenoid-actuated directional control valve. The solenoid of the directional control valve is coupled with a pneumatic timing relay actuated by a temperature sensor. With this arrangement, a pre-determined amount of extinghishing agent is discharged from the container and delivered to the hazard area and then the discharge shut-off. The discharge cycle is repeated, if necessary, until the fire is extinguished. The system is then automatically reset and ready to deliver further extinguishing agent on demand. The system also includes manual or automatic means for purging the delivery line downstream of the discharge control valve.

REFERENCES:
patent: 1958893 (1934-05-01), Kintner et al.
patent: 2933139 (1960-04-01), O'Rear
patent: 3507333 (1970-04-01), Quant et al.
patent: 3602313 (1971-08-01), Achs
patent: 3865192 (1975-02-01), Dunphy

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