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Patent
   D672868
Priority
Feb 09 2012
Filed
Feb 09 2012
Issued
Dec 18 2012
Expiry
Dec 18 2026
Inventors
Williams, …
Assg.orig
DELTA T CO…
Assg.curr
DELTA T, L…
Entity
unknown
Referenced by
12
References
38
Maint.:
n/a
The ornamental design for a winglet for fan blade, as shown and described.

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 plan view of the present invention;

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

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

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

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

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

The broken lines showing a portion of a fan blade and a portion of a winglet mounting structure are included for the purpose of illustrating environmental structure and form no part of the claimed design.
INVENTORS:

Williams, Jason Andrew

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
9011099, Jun 19 2012 SkyBlade Fan Company High volume low speed fan
9638209, Jul 08 2015 Ceiling fan blade attachment
9726192, Mar 31 2015 ASSA ABLOY ENTRANCE SYSTEMS AB Fan blades and associated blade tips
9874214, Jan 28 2014 4Front Engineered Solutions, Inc.; 4FRONT ENGINEERED SOLUTIONS, INC Fan with fan blade mounting structure
D717936, Feb 27 2014 DELTA T, LLC Blade tip
D723678, Jun 17 2013 DELTA T, LLC Winglet for a ceiling fan
D732657, Feb 27 2014 DELTA T, LLC Winglet
D857877, Mar 12 2018 Sunonwealth Electric Machine Industry Co., Ltd. End plate of a blade of a ceiling fan
D865939, Sep 04 2017 Sunonwealth Electric Machine Industry Co., Ltd. End plate for a ceiling fan blade
D965135, Dec 17 2019 DELTA T, LLC Winglet for fan
ER5971,
ER7639,
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1041913,
2014032,
3524712,
4662823, Oct 28 1985 COOKE, FRANK, L Air turbulence blades for ceiling fans
4968216, Oct 12 1984 The Boeing Company Two-stage fluid driven turbine
5226783, Jul 30 1990 Usui Kokusai Sangyo Kaisha Ltd. Axial flow fan with centrifugal elements
5564901, Dec 14 1993 Moore Fans LLC Low noise fan
5725355, Dec 10 1996 General Electric Company Adhesive bonded fan blade
5823480, Apr 05 1993 Wing with a wing grid as the end section
6039541, Apr 07 1998 University of Central Florida; FLORIDA, UNIVERSITY OF CENTRAL High efficiency ceiling fan
6161797, Nov 25 1996 Dugan Air Technologies, Inc.; QUIET WING TECHNOLOGIES, INC ; DUGAN AIR TECHNOLOGIES, INC Method and apparatus for reducing airplane noise
6244821, Feb 19 1999 DELTA T, LLC Low speed cooling fan
6334705, Oct 01 1998 GSLE SUBCO L L C Fluid mixing impellers with shear generating venturi
6517315, May 29 2001 HEWLETT-PACKARD DEVELOPMENT COMPANY, L P Enhanced performance fan with the use of winglets
6565320, Nov 13 2000 Borgwarner, INC Molded cooling fan
6719533, Jul 11 2002 JPMORGAN CHASE BANY High efficiency ceiling fan
6776578, May 29 2001 Hewlett Packard Enterprise Development LP Winglet-enhanced fan
6884034, Apr 07 1998 RESEARCH FOUNDATION OF THE UNIVERSITY OF CENTRAL FLORIDA INCORPORATED Enhancements to high efficiency ceiling fan
6939108, Jan 06 2003 DELTA T, LLC Cooling fan with reinforced blade
7284960, Jul 21 2004 DELTA T, LLC Fan blades
7401974, May 09 2006 EKATO Ruehr- und Mischtechnik GmbH Agitator with finned agitator blade end
7654798, Jul 21 2004 DELTA T, LLC Fan blade modifications
7934907, Jul 21 2004 DELTA T, LLC Cuffed fan blade modifications
8075273, Jul 21 2004 DELTA T, LLC Fan blade modifications
8079823, Jul 21 2004 DELTA T, LLC Fan blades
8162613, Mar 01 2007 DELTA T, LLC Angled airfoil extension for fan blade
871729,
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D587799, Aug 15 2008 DELTA T, LLC Winglet for a fan blade
D642674, Aug 15 2008 DELTA T, LLC Winglet for a fan blade
DE3819145,
EP1619391,
GB100134,
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WO2006022812,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 08 2012WILLIAMS, JASON ANDREWDELTA T CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0276770380 pdf
Feb 09 2012DELTA T CORPORATION(assignment on the face of the patent)
Nov 02 2017DELTA T CORPORATIONDELTA T, LLCCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0460220852 pdf
Dec 22 2017DELTA T, LLC F K A DELTA T CORPORATION CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENTPATENT SECURITY AGREEMENT0451080832 pdf
Jul 26 2021CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENTDELTA T, LLC F K A DELTA T CORPORATION RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL FRAME 045108 0832 0576060105 pdf
Sep 24 2021DELTA T, LLCU S BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENTSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0621420205 pdf
Sep 24 2021DELTA T, LLCGOLDMAN SACHS BANK USA, AS COLLATERAL AGENTSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0621420273 pdf
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