Combustion products detector having self-actuated periodic testing signal
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United States of America Patent
Stats
-
Oct 23, 1990
Grant Date -
N/A
app pub date -
Mar 8, 1988
filing date -
Mar 8, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Family
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Cited Art Landscape
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