Illumination – Sound equipment illuminator
Patent
1982-12-27
1984-02-14
Lechert, Jr., Stephen J.
Illumination
Sound equipment illuminator
362186, 362200, 362208, 362253, 362276, 362802, 200 60, 340521, 340540, 340636, H04M 122
Patent
active
044320418
ABSTRACT:
A self-contained, portable lighting apparatus is disclosed. The apparatus functions as an escape light in conjunction with smoke detector alarms in that it is activated by detecting the sound of such alarms. A lighting unit includes circuitry for detecting the alarm of a smoke detector, integrating the detected signal over a predetermined time to minimize the incidence of false alarm, circuitry for delaying the shutting off of the light after the alarm signal has ceased and circuitry for detecting a low voltage condition of the batteries and for providing an intermittent sound that is indicative of a low voltage battery condition.
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Pfisterer Richard E.
Schultz Richard M.
Firex Corporation
Lechert Jr. Stephen J.
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