Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 15, 2011
Patent Application Number
12003833
Date Filed
January 2, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
A blower includes a housing and an impeller. The housing has a main inlet and at least one secondary inlet. The impeller is disposed in the housing and has a hub, a plurality of blades and at least one annular plate. Those blades are disposed around the hub. The annular plate is connected to those blades and partially blocked the secondary inlet.
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