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:
May. 22, 2012
Filed:
Sep. 12, 2008
Applicants:
Ah-yee Shu, Taoyuan Hsien, TW;
Hao-ming Chen, Taoyuan Hsien, TW;
Chui-hsien Chiu, Taoyuan Hsien, TW;
Chi-hao Hsieh, Taoyuan Hsien, TW;
Ching-chuang Mai, Taoyuan Hsien, TW;
Inventors:
Ah-Yee Shu, Taoyuan Hsien, TW;
Hao-Ming Chen, Taoyuan Hsien, TW;
Chui-Hsien Chiu, Taoyuan Hsien, TW;
Chi-Hao Hsieh, Taoyuan Hsien, TW;
Ching-Chuang Mai, Taoyuan Hsien, TW;
Assignee:
Delta Electronics, Inc., Taoyuan Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a fan including a stator and a rotor coupled to the stator. The stator has a base and a bearing disposed inside the base. The rotor has a shaft supported by the bearing. Furthermore, the shaft has a concave structure formed on a surface thereof, or the bearing has a groove structure formed on a surface thereof.