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. 31, 2005
Filed:
Sep. 02, 2003
Alex Horng, Kaohsiung, TW;
Yin-rong Hong, Kaohsiung, TW;
Ching-sheng Hong, Kaohsiung, TW;
Sunonwealth Electric Machine Industry Co., Ltd., Kaohsiung, TW;
Abstract
A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, and a plurality of ribs each mounted between the base and the casing. An impeller is mounted on the base and includes a plurality of blades. Each rib includes in sequence at least a first radial guiding portion, a first circumferential guiding portion, and a second radial guiding portion. Each of the first radial guiding portion and the second radial guiding portion extends in a direction having an inclining angle with an axial direction of the air outlet. The first radial guiding portion, the first circumferential guiding portion, and the second radial guiding portion guide airflow passing through the air outlet and increase wind pressure of the airflow when the impeller is turning.