Method, apparatus and system for fire detection

Details Method, apparatus and system for fire detection Method, apparatus and system for fire detection

2006-03-28

2006-03-28

Nguyen, Phung T. (Department: 2632)

Communications: electrical

Condition responsive indicating system

Specific condition

C073S023200

Reexamination Certificate

active

07019657

ABSTRACT:
An apparatus for detecting and indicating the presence of combustion products comprising a first combustion product monitor for monitoring for the presence of a first combustion product and quantifying said first product; a second combustion product monitor for monitoring for the presence of a second combustion product and quantifying said second product; and, an alarm connected to the first and second combustion product monitors for triggering an alarm when an alarm condition is satisfied, said alarm condition being at least one of the group consisting of the quantified presence of the first combustion product exceeding a first-product threshold level and the quantified presence of the second combustion product exceeding a first second-product threshold level; and, the quantified presence of the second combustion product exceeding a second second-product threshold level.

REFERENCES:
patent: 5659292 (1997-08-01), Tice
patent: 5691704 (1997-11-01), Wong
patent: 5841021 (1998-11-01), De Castro et al.
patent: 6107925 (2000-08-01), Wong
patent: 6166647 (2000-12-01), Wong

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