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.:
Date of Patent:
Oct. 26, 2004
Filed:
Jan. 17, 2003
HeBen Liu, Shenzhen, CN;
Hon Hai Precision Ind. Co., Ltd., Taipei Hsien, TW;
Abstract
A heat sink assembly having a retaining device includes a heat sink ( ), a retention frame ( ), a rectangular fastener ( ), four pins ( ), and four springs ( ). The heat sink includes a base ( ) defining four bores ( ) therein. The frame is secured to a printed circuit board ( ) around an electronic package ( ), and defines a pair of through holes ( ). A pair of posts ( ) depends from opposite sides of the fastener. The pins are received through the bores of the base and in the fastener. The springs surround the pins respectively between the base and the fastener. The posts are deformably extended through the through holes thereby compressing the springs and sandwiching the base between the frame and the springs. The springs cooperatively provide evenly distributed pressing forces on the base. The heat sink is thus easily, firmly and evenly secured to the electronic package.