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:
Feb. 02, 2010
Filed:
Aug. 01, 2006
Chin-wen Yeh, Tu-Cheng, TW;
Chin-long Ku, Tu-Cheng, TW;
Hsieh-kun Lee, Tu-Cheng, TW;
Foxconn Technology Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
An electric fan includes a fan base (), a bearing () and a rotor assembly (). The fan base forms a central tube () receiving the bearing therein. The rotor assembly includes a fan hub (), and a pivot axle () joined to the fan hub. The pivot axle pivotably extends into the bearing. The bearing has an outer wall () with a plurality of bulwarks () circumferentially formed thereon. At least one partition hole () corresponding to the bulwarks is defined in the bearing. The at least one partition hole effectively prevents a radially inward pressure exerted by the central tube on the bearing from being exerted to the pivot axle via the bearing. Therefore, a friction between the bearing and the pivot axle is reduced.