Combustion products detector having self-actuated periodic testi

Details Combustion products detector having self-actuated periodic testi Combustion products detector having self-actuated periodic testi

1988-03-08

1990-10-23

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340514, 340515, 340516, G08B 1710

Patent

active

049655566

ABSTRACT:
Disclosed is an improved combustion products smoke alarm that includes an electronic circuit which automatically tests the detector's operation repetitively at periodic intervals, or periodically sounds the detector's alarm to remind the occupant to manually test the detector's operation. In the preferred embodiment, this periodic testing or reminding occurs at weekly intervals. Thus, occupants living about such a smoke alarm, after experiencing this repetitive sounding of the detector's alarm for some time, will come to anticipate its sounding and notice its absence if the smoke alarm becomes inoperative.

REFERENCES:
patent: 3801972 (1974-04-01), Ho Kim
patent: 4088986 (1978-05-01), Boucher
patent: 4266218 (1981-05-01), Kadash
patent: 4321466 (1982-03-01), Mallory
patent: 4388615 (1983-06-01), Ford et al.
patent: 4481502 (1984-11-01), Dawson
patent: 4595914 (1986-06-01), Siegel

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