Fan blade

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Description

FIG. 1 is a perspective bottom view of a fan blade in use.

FIG. 2 is a perspective top view of the fan of FIG. 1.

FIG. 3 is a bottom view of the fan of FIG. 1.

FIG. 4 is a top view of the fan of FIG. 1.

FIG. 5 is a front side view of the fan of FIG. 1.

FIG. 6 is a rear side view of the fan of FIG. 1.

FIG. 7 is a left side view of the fan of FIG. 1.

FIG. 8 is a right side view of the fan of FIG. 1.

FIG. 9 is perspective bottom view of another fan having three twisted blades with a hub.

FIG. 10 is a perspective top view of the fan of FIG. 9.

FIG. 11 is a bottom view of the fan of FIG. 9.

FIG. 12 is a top view of the fan of FIG. 9.

FIG. 13 is a front side view of the fan of FIG. 9.

FIG. 14 is a rear side view of the fan of FIG. 9.

FIG. 15 is a left side view of the fan of FIG. 9; and,

FIG. 16 is a right side view of the fan of FIG. 9.

The broken line showing of the hub is included for the purpose of illustrating environmental structure and forms no part of the claimed design.

Claims

The ornamental design for a fan blade, as shown.

Referenced Cited
U.S. Patent Documents
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Other references
  • HVAC, Exhaust Fans, Attic Ventilators, [online] Grainger.com, Grainger, for the ones who get it done, 3 pages, [retrieved on Apr. 21, 2006] Retrieved from: http://www.grainger.com/Grainger/wwg/productIndex.shtml?operator=searchProductBySu....
  • U.S. Appl. No. 29/152,381, filed Dec. 1, 1959, Szydlowski.
  • HVAC, Exhaust Fans, Attic Ventilators, [onlin] Grainger.com, Grainger, for the ones who get it done, 3 pgs, [retrieved on Apr. 21, 2006] Retrieved From: http://www.grainger.com/Grainger/wwg/productIndex.shtml?operator=searchProductBySu....
Patent History
Patent number: D600340
Type: Grant
Filed: Nov 14, 2008
Date of Patent: Sep 15, 2009
Assignee: University of Central Florida Research Foundation, Inc. (Orlando, FL)
Inventors: Danny S. Parker (Cocoa Beach, FL), Bart Hibbs (Altadena, CA)
Primary Examiner: Lisa P Lichtenstein
Attorney: Law Offices of Brian S. Steinberger, P.A.
Application Number: 29/312,827
Classifications
Current U.S. Class: Fan Or Ventilator Blade (D23/413)