Automatic self-testing combustion products detector and...

Details Automatic self-testing combustion products detector and... Automatic self-testing combustion products detector and...

G - Physics

08

B

358/30, 340/77

G08B 17/10 (2006.01) G08B 17/11 (2006.01) G08B 29/00 (2006.01) G08B 29/14 (2006.01)

Patent

CA 1338061

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.

591821

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