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:
Nov. 15, 2011
Filed:
Jan. 03, 2008
Applicants:
Li-hui Hsiao, Taoyuan Hsien, TW;
Tsung-yu Lei, Taoyuan Hsien, TW;
Yen-chun Huang, Taoyuan Hsien, TW;
Inventors:
Li-Hui Hsiao, Taoyuan Hsien, TW;
Tsung-Yu Lei, Taoyuan Hsien, TW;
Yen-Chun Huang, Taoyuan Hsien, TW;
Assignee:
Delta Electronics, Inc., Taoyuan Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A passive fan includes a frame, at least one impeller and at least one driving device. The impeller is disposed in the frame. The driving device is disposed in the body of the frame and separated from the impeller, and drives the impeller to rotate. The driving device is an independent motor, a driver, a rotating wheel or a driving gear.