Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 4, 2011
Patent Application Number
11889421
Date Filed
August 13, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A centrifugal fan. The centrifugal fan has at least one air inlet and one air outlet, and at least one set of rotor blades. A sidewall extends downward from an inner margin of the air inlet to define an air-gathering chamber in the housing of the centrifugal fan for increasing airflow pressure and heat dissipating efficiency.
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