Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Scott Lang0
Date of Patent
January 17, 2012
Patent Application Number
12428972
Date Filed
April 23, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
An aspirated smoke detector includes a smoke sensor, an aspirator and variable speed control circuits. As the concentration of smoke increases, the speed control circuits can increase aspirator speed from a first, nominal value to a second, higher value.
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