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:
Aug. 17, 2004
Filed:
Dec. 16, 2002
HeBen Liu, Shenzhen, CN;
Hon Hai Precision Ind. Co., LTD, Taipei Hsien, TW;
Abstract
A retaining device for attaching a heat sink ( ) to a CPU ( ) mounted on a circuit board ( ). The retaining device includes a pair of clips ( ), a backplate ( ), and four pins ( ). Each clip includes a central pressing portion ( ), two resilient portions ( ) adjacent the pressing portion, two shoulders ( ) adjacent the resilient portions, and two arms ( ). Each shoulder defines first and second cutouts ( ). Each pin forms a blocking head ( ), and a bottom blocking stop ( ). The pins are extended through the backplate, the circuit board and the heat sink. The heads are initially received through the first cutouts, and then engaged on the shoulders at the second cutouts. The heads press downwardly on the clips, and the stops press upwardly on the backplate. Thus, the clips and the backplate firmly sandwich the heat sink, the CPU and the circuit board therebetween.