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.

Date of Patent:
Feb. 24, 2015

Filed:

Dec. 09, 2011
Applicants:

Chun-fa Tseng, Kaohsiung, TW;

Yu-nien Huang, Taoyuan County, TW;

Cheng-yu Cheng, Taoyuan County, TW;

Da-wei Wu, Taoyuan County, TW;

Inventors:

Chun-Fa Tseng, Kaohsiung, TW;

Yu-Nien Huang, Taoyuan County, TW;

Cheng-Yu Cheng, Taoyuan County, TW;

Da-Wei Wu, Taoyuan County, TW;

Assignee:

Quanta Computer Inc., Taoyuan Shien, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/66 (2006.01); F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
F04D 29/703 (2013.01); F04D 29/663 (2013.01);
Abstract

A centrifugal fan is provided. The centrifugal fan includes a housing, a driving device, and blades. The housing includes a circular base and at least two struts. Each of the struts physically connects the circular base and the remainder of the housing, and each of the struts includes two peripheral edges. The driving device is placed on the circular base. Each of the blades has an arc shape and the blades are located in the housing. The driving device rotates the blades. The two peripheral edges of each of the struts form orthogonal curves with the blades.


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