Winglet for a fan blade

- Delta T Corporation
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Description

FIG. 1 is a top perspective view of the present invention;

FIG. 2 is a bottom perspective view of the present invention;

FIG. 3 is a top elevational view of the present invention;

FIG. 4 is a bottom elevational view of the present invention;

FIG. 5 is a left elevational view of the present invention;

FIG. 6 is a right elevational view of the present invention;

FIG. 7 is a front elevational view of the present invention; and,

FIG. 8 is a back elevational view of the present invention.

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

Claims

The ornamental design for a winglet for fan blade, as shown and described.

Referenced Cited
U.S. Patent Documents
3524712 August 1970 Keen et al.
4968216 November 6, 1990 Anderson et al.
5564901 October 15, 1996 Moore
5725355 March 10, 1998 Crall et al.
5823480 October 20, 1998 La Roche
6039541 March 21, 2000 Parker et al.
6161797 December 19, 2000 Kirk et al.
6244821 June 12, 2001 Boyd et al.
6517315 February 11, 2003 Belady
6565320 May 20, 2003 Surles et al.
6719533 April 13, 2004 Bird
6776578 August 17, 2004 Belady
6884034 April 26, 2005 Parker et al.
20030095864 May 22, 2003 Ivanovic
Foreign Patent Documents
3819145 December 1989 DE
100134 March 1917 GB
2050530 July 1981 GB
Other references
  • U.S. Appl. No. 11/046,341, filed Jan. 28, 2005, Aynsley.
  • U.S. Appl. No. 11/046,593, filed Jan. 28, 2005, Anysley.
  • U.S. Appl. No. 11/777,344, filed Jul. 13, 2007, Anysley.
  • U.S. Appl. No. 60/589,945, filed Jul. 21, 2004, Anysley.
  • Airfoil Design: HVLS dated Dec. 9, 2002.
  • A Fan for All Seasons, Bell & Howell Information and Learning, American Society of Mechanical Engineers, Mechanical Engineering, vol. 121(12), pp. 58-60.
  • Screenshots from http://www.b737.org.uk, printed on May 2004.
  • Screenshots from oea.larc.nasa.gov, printed May 2004.
  • Screenshots from Penn State Engineering website, printed May 2004.
  • Boeing 747-400 Twin-Aisle Jet Airliner, USA, Screenshot from http://www.aerospace-technology.com/projects/747/7473.html, printed on Aug. 11, 2008.
  • 747-400, Screenshot from http://www.boeing.com/commercial/747family/pf/pfexterior.html, printed on Aug. 11, 2008.
  • General Exterior Arrangement 737, Screenshot from http://www.boeing.com/commercial/737family/pf/pfexterior.html, printed on Aug. 11, 2008.
  • Image: Winglet and nav light arp.jpg, Screenshot from http://en.wikipedia.org/wiki/Image: Wingletandnavlightarp.jpg, printed Aug. 11, 2008.
  • KC-135A in flight—closeup of winglet with attached tufts, Screenshot from http://www.dfrc.nasa.gov/gallery/Photo/KC-135/Small/EC79-1148l.jpg, printed Aug. 11, 2008.
  • KC-135A in flight-winglet study, EC79-11314, Screenshot from http://www.dfrc.nasa.gov/gallery/Photo/KC-135/Small/EC79-11314.jpg, printed Aug. 11, 2008.
  • KC-135A in flight-winglet study, EC79-11484, Screenshot from http://www.dfrc.nasa.gov/gallery/Photo/KC-135/Small/EC79-11484.jpg, printed Aug. 11, 2008.
  • Montoya, L.C., KC-135 Winglet Flight Results, NASA Dryden Flight Research Center, pp. 145-156.
  • NASA—NASA Dryden Technology Facts-Winglets, Screenshot from http://www.nasa.gov/centers/dryden/about/Organizations/Technology/Facts/TF-2004-15-D, printed on Aug. 11, 2008.
  • Winglet detail, Screenshot from http://upload.wikimedia.org/wikipedia/commons/5/53/Wingletdetail.jpg, printed on Aug. 11, 2008.
  • Wingtip device, Screenshot from http://en.wikipedia.org/wiki/Wingtipdevice, printed Aug. 11, 2008.
  • EPO Search Report dated Aug. 21, 2006 for Application No. EP 05250653.2.
  • EPO Search Report dated Aug. 22, 2006 for Application No. EP 05250654.0.
  • EPO Search Report dated Jul. 1, 2008 for Application No. EP 05250632.2.
  • EPO Search Report dated Jul. 1, 2008 for Application No. EP 05250653.2.
  • EPO Search Report dated Jul. 1, 2008 for Application No. EP 02 250654.0.
  • Dairy Notes, University of California Cooperative Extension (May 1999).
  • Fairbank, W.C. et al., A Large Paddle Fan for Livestock Cooling Canadian Society of Agricultural Engineering (Jun. 1989).
  • International Search Report dated Aug. 19, 2005 for Application No. PCT/US05/02703.
  • Jain et al., Experimental Investigation of the Flow Field of a Ceiling Fan, ASME Heart Transfer/Fluids Engineering Summer Conference; Paper No. HT-FED-2004-56226 (Jul. 2004).
  • Notice of Allowance dated Jun. 2, 2007 for U.S. Appl. No. 11/046,341.
  • Office Action dated Feb. 23, 2007 for U.S. Appl. No. 11/046,341.
  • Office Action dated Jan. 25, 2007 for U.S. Appl. No. 11/046,593.
  • Office Action dated May 14, 2007 for U.S. Appl. No. 11/046,593.
  • Written Opinion dated Aug. 19, 2005 for Application No. PCT/US05/02703.
  • Technical Guide: Commercial Industrial & Special Application Ceiling Fans.
Patent History
Patent number: D587799
Type: Grant
Filed: Aug 15, 2008
Date of Patent: Mar 3, 2009
Assignee: Delta T Corporation (Lexington, KY)
Inventor: Richard A. Oleson (Lexington, KY)
Primary Examiner: Lisa P Lichtenstein
Attorney: Frost Brown Todd LLC
Application Number: 29/322,996
Classifications
Current U.S. Class: Fan Element (D23/411)