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:
Sep. 20, 2011
Filed:
Oct. 16, 2008
Applicants:
Ming-chih Sun, Taipei Hsien, TW;
Kai Huang, Taipei Hsien, TW;
Inventors:
Ming-Chih Sun, Taipei Hsien, TW;
Kai Huang, Taipei Hsien, TW;
Assignee:
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/08 (2006.01); F04D 29/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
An exhaust fan includes a fan frame, a fan, and a shielding plate. The fan frame defines a hollow shell, the hollow shell defines an air flow passage with an air inlet and an air outlet. The fan is received in the hollow shell, the fan includes a hub and a plurality of fan blades extending outward in a radial direction from circumference of the hub. The shielding plate is disposed at the air inlet side of the hub and covers an end surface of the hub facing the air inlet side. The shielding plate is separated from the hub.