Duct smoke detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 19, 1988
Grant Date -
N/A
app pub date -
Jul 28, 1986
filing date -
Jul 28, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for sensing smoke in a duct includes a housing with inlet and outlet ports and a flow chamber which directs gas flow on a path between the ports and to and from a smoke detector. A vaned rotor on the path is visible through a window in the housing gives a visual indication of the existence or nonexistence and direction of gas flow and thus whether or not normally flowing duct gas is being sensed.
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Family
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Cited Art Landscape
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