Apparatus for detecting the passage of glowing embers
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United States of America Patent
Stats
-
Nov 11, 1980
Grant Date -
N/A
app pub date -
Aug 3, 1978
filing date -
Aug 3, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An infrared detector of sufficient sensitivity and stability to provide for the reliable detection of a glowing ember moving through an enclosed carrier system (duct or conveyor) in which a photo-resistive device for viewing the interior of the carrier is connected into suitable circuitry that does not respond to slowly changing ambient light, but which produces a voltage pulse in response to a moving glowing ember passing through the field of view of the detector; said voltage pulse being utilized to provide an output signal which may actuate an alarm or release extinguishant.
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