Fire detection and extinguishment system

Details Fire detection and extinguishment system Fire detection and extinguishment system

1994-02-09

1996-01-23

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340521, 340511, 340517, 340628, 340578, 169 23, 169 60, G08B 1900

Patent

active

054868114

ABSTRACT:
Early fire detection and extinguishment is provided by a plurality of fire etection units, each associated with a localized portion of a protected space and including condition sensors specifically appropriate to the environment of that localized portion of a protected space by a selected combination of condition sensors. A fire alarm annunciator and at least one controlled fire extinguishment system portion, or a stand-alone fire extinguishment system, is provided for each fire detection unit. A central control unit preferably includes a profile detector which evaluates outputs of one or more condition sensors over time to reduce false alarm rates while increasing sensitivity to early stage fires.

REFERENCES:
patent: 4005754 (1977-02-01), Linden et al.
patent: 4148022 (1979-04-01), Hetznecker
patent: 4319229 (1982-03-01), Kirkor
patent: 4749986 (1988-06-01), Otani et al.
patent: 4785292 (1988-11-01), Kern et al.
patent: 4796205 (1989-01-01), Ishii et al.
patent: 5260687 (1993-11-01), Yamauchi et al.
patent: 5281951 (1994-01-01), Okayama

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