Alarm system having plural diverse detection means
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United States of America Patent
Stats
-
Mar 9, 1982
Grant Date -
N/A
app pub date -
Jun 9, 1980
filing date -
Jun 9, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for detecting a fire emergency condition employs three separate and diverse sensors; a heat detector, a smoke detector, and an infrared radiation detector. Either or all of these detectors can activate the alarm. Additionally, the infrared radiation detector can be used to control the energization of the room's artificial illumination means. All sensors are mounted in a common housing and a mirror or lens arrangement is provided to focus the infrared radiation upon the appropriate detector.
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Family
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Cited Art Landscape
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