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.:

US 8157513 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 17, 2012

Filed:

Apr. 09, 2008
Applicants:

Hidenobu Takeshita, Kyoto, JP;

Toshikazu Fukunaga, Kyoto, JP;

Tsunenori Tatsuno, Kyoto, JP;

Inventors:

Hidenobu Takeshita, Kyoto, JP;

Toshikazu Fukunaga, Kyoto, JP;

Tsunenori Tatsuno, Kyoto, JP;

Assignee:

Nidec Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/54 (2006.01);
U.S. Cl.
CPC ...
Abstract

An axial flow fan according to the present invention comprises an impeller which rotates about a central axis and including a plurality of blades, a hollow member accommodating therein the impeller, a base portion which is arranged at the hollow member and supports the base portion in a rotatable manner, a plurality of inner air guide members each connected to the base portion, and a plurality of outer air guide members each connected to the hollow member. The inner air guide members and the outer air guide members each include a first edge member and a second edge portion. A length of the first edge member and that of the second edge member of the outer air guide member are greater than those of the first edge member and the second edge member of the inner air guide member.


Find Patent Forward Citations

Takeshita, Hidenobu. (2012). Axial flow fan (U.S. Patent No. 8157513). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8157513

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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