Warning device status circuit including a status output device
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United States of America Patent
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Apr 4, 2006
Grant Date -
Sep 30, 2004
app pub date -
Apr 7, 2004
filing date -
May 3, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A warning device including a status and function indicator circuit for indicating the status and function of the warning device. In a visual warning device such as a strobe light, the status and function indicator circuit includes a status output device such as an LED. The LED and associated circuitry are configured to indicate both proper operation of the visual warning device and, in the event of a device failure, will indicate whether the fault lies with circuitry for the visual warning device or simply with a warning output device.
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