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:
Apr. 20, 2010
Filed:
Dec. 14, 2006
Chia-feng Wu, Taoyuan Hsien, TW;
Cheng-chieh Liu, Taoyuan Hsien, TW;
Ching-sen Hsieh, Taoyuan Hsien, TW;
Yueh-lung Huang, Taoyuan Hsien, TW;
Wen-shi Huang, Taoyuan Hsien, TW;
Chia-Feng Wu, Taoyuan Hsien, TW;
Cheng-Chieh Liu, Taoyuan Hsien, TW;
Ching-Sen Hsieh, Taoyuan Hsien, TW;
Yueh-Lung Huang, Taoyuan Hsien, TW;
Wen-Shi Huang, Taoyuan Hsien, TW;
Delta Electronics, Inc., Taoyuan Hsien, TW;
Abstract
A fan system includes a driving device, a speed detecting device and a logic device. The driving device generates a speed detecting signal and a predetermined alarm signal. The speed detecting device, which is electrically connected with the driving device, receives the speed detecting signal, and generates a low speed signal when the speed detecting signal is lower than a reference signal. The logic device is respectively electrically connected with the driving device and the speed detecting device, and generates an alarm signal when the logic device receives the predetermined alarm signal or the low speed signal.