Duct detector

Details Duct detector Duct detector

G - Physics

01

N

G01N 1/22 (2006.01) F16L 55/00 (2006.01) G01N 1/10 (2006.01) G01N 1/14 (2006.01) G01N 1/24 (2006.01) G08B 17/10 (2006.01)

Patent

CA 2299919

A duct-type smoke detector has an elongated housing from which extend inflow and outflow sampling tubes. A fire sensor is located in the housing between the tubes. An aspirator, such as a centrifugal blower is carried within the housing adjacent to a proximal end of the inflow tube. A flow output from the blower is directed toward the sensor. A closed channel can extend between a proximal end of the inflow tube and the fire sensor. The aspirator can be located in the channel.

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