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:
Jul. 03, 2001
Filed:
Apr. 19, 1999
Applicant:
Inventor:
Richard Lee, Taipei, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 1/00 ;
U.S. Cl.
CPC ...
B63H 1/00 ;
Abstract
An improved structure of a radiating fan comprises a blade seat, an axle center and a bearing. The central portion of the blade seat is installed with the axle center made of precision ceramic material, the outer peripheral surface of the axle center is covered by a hollow bearing made of precision ceramic material. Since the axle center and the bearing made of precision ceramic material have the advantages of long lifetime, low noise, and without using lubricating oil. Thus it is better than the axle center made of stainless steel and the oil bearing made of copper.