The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8593814 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 26, 2013

Filed:

Jul. 12, 2011
Applicants:

Jin-biao Ji, Shenzhen, CN;

Zhi-jiang Yao, Shenzhen, CN;

Li-fu Xu, Shenzhen, CN;

Inventors:

Jin-Biao Ji, Shenzhen, CN;

Zhi-Jiang Yao, Shenzhen, CN;

Li-Fu Xu, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); F28F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A heat sink includes a contact portion, a first support rib, a second support rib, a third support rib and a fourth support rib radially extended from the contact portion, and a plurality of parallel fins radially extended from the first support rib, the second support rib, the third support rib and the fourth support rib between two adjacent support ribs. The contact portion contacts with a first heat source. A distance from the contact portion to an edge of the plurality of parallel fins between the first support rib and the second support rib is a first distance. A distance from the contact portion to an edge of the plurality of parallel fins between the third support rib and the fourth support rib is a second distance. The first distance is less than the second distance.


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