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:
Apr. 16, 2002
Filed:
Nov. 22, 2000
Applicant:
Inventors:
Jih-Jong Hsu, Taichung, TW;
Tsann-Huei Chang, Taichung, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 7/08 ;
U.S. Cl.
CPC ...
H02K 7/08 ;
Abstract
A motor main shaft has a plurality of rolling bearings, a plurality of spacing rings, and a sleeve, which are all provided with a plurality of microfins to prevent the overheating of the main shaft in motion. The microfins serve to promote the heat convection.