Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 23, 2007
0Patent Application Number
110465930
Date Filed
January 28, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A fan blade comprises an airfoil having a generally elliptical top surface and a generally elliptical bottom surface. The fan blade has a lower radius of curvature toward its leading edge as compared to a higher radius of curvature toward its trailing edge. When mounted to a rotating hub member, elliptical fan blades may provide air movement at significant efficiencies.
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