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:
Feb. 13, 2018
Filed:
Oct. 25, 2013
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Yusuke Oda, Yokohama, JP;
Tomoko Nonaka, Hamamatsu, JP;
Masaaki Nishizawa, Kitasaku-gun, JP;
Shinichi Uchikawa, Kitasaku-gun, JP;
MINEBEA CO., LTD., Kitasaku-gun, JP;
Abstract
There is provided with an axial fan comprising an impeller having a plurality of vanes; a motor rotating the impeller; a casing housing the impeller and the motor; a motor base mounting the motor; and a plurality of spokes connecting the motor base and the casing, wherein the motor base has a plurality of reinforcement ribs thereon, the plurality of reinforcement ribs being equal to or more than the plurality of spokes in number, and wherein the casing has a natural frequency equal to or higher than a frequency being transmitted to the casing from the motor when the motor is rotated at a rotation speed of 20000 rpm or more.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile