Fire extinguishers – Special applications – Condition responsive control
Patent
1986-01-16
1987-01-20
Kashnikow, Andres
Fire extinguishers
Special applications
Condition responsive control
55217, 55302, 55432, 169 66, 406 12, A62C 3704
Patent
active
046374736
ABSTRACT:
A fire suppression system including a housing for receiving particulate matter and defining an inlet opening and an outlet opening, an input duct connected to the inlet opening, an air mover for forcing air through the input duct into the housing and out of the outlet openings, and filter means disposed in the housing and sealed between the inlet opening and the outlet opening so as to remove in the housing the particulate matter entrained by air entering through the inlet opening. Also included are an inlet sensor providing an inlet output signal dependent on the inlet temperature of combined gas and particulate matter entering the housing through the inlet opening, an outlet sensor providing a discharge output signal dependent on the outlet temperature of air discharged through the outlet opening, and a difference circuit receiving the inlet and discharge output signals and providing a difference signal in response to a predetermined minimum difference therebetween. A detector provides a detection signal in response to the presence of combustion products within the enclosure and a control circuit responds to the difference signal by deactivating the air mover and responds to the detection signal by activating an actuator to release a fire extinguishing agent into the housing.
REFERENCES:
patent: 3480330 (1969-11-01), Hirs et al.
patent: 3521430 (1970-07-01), Vanderlip et al.
patent: 3912015 (1975-10-01), Garbee et al.
patent: 4281717 (1981-08-01), Williams
patent: 4487266 (1984-12-01), Gillis et al.
Gillis Joseph P.
Jess Norval M.
Jarcho Harold G.
Kashnikow Andres
Kidde, Inc.
Toupal John E.
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