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:
Oct. 30, 2012
Filed:
Dec. 03, 2007
Applicants:
Shun-chen Chang, Taoyuan Hsien, TW;
Yi-ching Chiu, Taoyuan Hsien, TW;
Inventors:
Shun-Chen Chang, Taoyuan Hsien, TW;
Yi-Ching Chiu, Taoyuan Hsien, TW;
Assignee:
Delta Electronics, Inc., Taoyuan Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 25/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fan includes a fan frame, a front impeller and a rear impeller. The fan frame has a frame body and a plurality of connecting elements. The front impeller has a first bushing disposed at the central portion of the frame body. Two ends of each connecting element are respectively connected with the frame body and the first bushing. The rear impeller has a second bushing partially telescoped into the first bushing.
Chang, Shun-Chen. (2012). Fan with impellers coupled in series and fan frame thereof (U.S. Patent No. 8297914). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8297914
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile