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:
Jun. 29, 2010
Filed:
Dec. 18, 2007
Qiang Zhang, Shenzhen, CN;
Zhi-ya Yang, Shenzhen, CN;
Wun-chang Shih, Taipei Hsien, TW;
Yi-chyng Fang, Taipei Hsien, TW;
Qiang Zhang, Shenzhen, CN;
Zhi-Ya Yang, Shenzhen, CN;
Wun-Chang Shih, Taipei Hsien, TW;
Yi-Chyng Fang, Taipei Hsien, TW;
Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Shenzhen, Guangdong Province, CN;
Foxconn Technology Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A cooling fan includes a fan housing () having a central tube () extending upwardly therefrom, a bearing () received in the central tube, a stator () mounted around the central tube, a rotor (), and a cover (). The bearing defines a bearing hole () therein. The rotor includes a hub (), a plurality of blades () extending outwardly from the hub, and a shaft () extending downwardly from the hub into the bearing hole of the bearing. The cover is mounted around the shaft and arranged on the bearing to seal a top end of the bearing. The cover is made of powders by sintering and thus has a plurality of pores to generate capillary force to absorb lubricant oil leaking out of the bearing.