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:
Mar. 09, 2010
Filed:
Aug. 07, 2006
Applicants:
Sheng-chang LU, Penghu County, TW;
Hung-jen Wei, Nantou, TW;
Tzu-huan Hsu, Taipei County, TW;
Inventors:
Assignee:
Qisda Corporation, Taoyuan County, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); G03B 21/16 (2006.01); H05K 5/00 (2006.01); F24F 13/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electronic device. The electronic device comprises a heat source, a housing having an inlet and an outlet, a fan disposed in the housing and selectively rotating at a first speed and a second speed higher than the first speed to generate air flow in the housing to cool the heat source, and a plurality of louvers disposed on the housing, having adjustable angles and selectively positioned at a first angle and a second angle. When the louvers are positioned at the first angle, the fan rotates at the first speed, and when the louvers are at the second angle, the fan rotates at the second speed.