Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chellappa Balan0
John Decker0
Date of Patent
April 17, 2012
0Patent Application Number
120743280
Date Filed
March 3, 2008
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A cooling fan comprises an impeller which includes a plurality of radially extending blades, each of which includes a blade hub, a blade tip and a blade midspan approximately midway between the hub and the tip. In addition, each blade comprises a blade suction surface, and substantially the entire blade suction surface is visible from the forward looking aft direction.
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