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. 28, 2005
Filed:
Aug. 19, 2003
Applicants:
Alex Horng, Kaohsiung, TW;
Yin-rong Hong, Kaohsiung, TW;
Ching-sheng Hong, Kaohsiung, TW;
Inventors:
Assignee:
Sunonwealth Electric Machine Industry Co., Ltd., Kaohsiung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D029/54 ;
U.S. Cl.
CPC ...
Abstract
A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, an impeller being mounted on the base and having a plurality of blades, a plurality of ribs each extending between the base and the casing along a radial direction of the base, and at least one guiding ring fixedly mounted to the ribs. The guiding ring has an axial length that is longer than a width of the guiding ring in the radial direction. The guiding ring guides and divides airflow passing through the air outlet when the impeller is turning.