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United States Patent D793,350
Kenchappa August 1, 2017

Heat sink


CLAIM The ornamental design for a heat sink, as shown and described.
Inventors: Kenchappa; Rajagopal (Farmington, MI)
Name City State Country Type

DENSO International America, Inc.



Assignee: DENSO International America, Inc. (Southfield, MI)
Appl. No.: D/532,048
Filed: July 1, 2015

Current U.S. Class: D13/179
Current International Class: 1303
Field of Search: ;D13/179,122,182

References Cited [Referenced By]

U.S. Patent Documents
4884631 December 1989 Rippel
D378915 April 1997 Widmayer
D379799 June 1997 Widmayer
D381011 July 1997 Widmayer
D388399 December 1997 Widmayer
D398589 September 1998 Dodson
D402025 December 1998 Dodson
6421239 July 2002 Huang
D481017 October 2003 Hsia
D644616 September 2011 Yu
D672728 December 2012 Lin
D717745 November 2014 Schubert
D722576 February 2015 Zimmer
2005/0108877 May 2005 Peterson
2008/0066888 March 2008 Tong et al.
Foreign Patent Documents
2006-278923 Oct 2006 JP
Primary Examiner: Rivard; Jennifer
Assistant Examiner: Rivas; April


FIG. 1 is a front perspective view illustrating the claimed heat sink design.

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawing illustrate portions of the heat sink that form no part of the claimed design

The article of the present design relates to a heat sink for an electronic component and other sources are operating at excessively high temperatures in open/closed area in automotive industry, such as a Head-up Display (HUD) for a vehicle. The HUD has a light source to project an image or graphics on a windshield of the vehicle. The heat sink includes a bottom plate and a plurality of fins arranged parallel to the vehicle moving direction on the bottom plate. It will extract more heat at the time of acceleration and deceleration of the vehicle. The bottom plate is configured to be attached to the light source and prevent the light source from operating at excessively high temperatures. The typical fin structure gains the surface area and improves the efficiency of heat exchange.

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