Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Thomas R. Chapman0
Date of Patent
September 19, 2006
0Patent Application Number
107642830
Date Filed
January 23, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides a centrifugal fan including a hub adapted for rotation about a central axis and a plurality of blades arranged about the central axis and coupled for rotation with the hub. Each of the blades includes a curvature in a plane that extends through the blade and is tangent to a cylinder which extends through the blade and is centered along the central axis.
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