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:
Mar. 15, 2016
Filed:
Jan. 25, 2013
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Takayuki Mashima, Kitasaku-gun, JP;
Yoichi Kawai, Kitasaku-gun, JP;
MINEABEA CO., LTD., Kitasaku-gun, JP;
Abstract
A fan device includes a rotorand recessesto be filled with claylike weights. The rotorincludes an impellerand a shaft. The impellerhas a huband vanes. The recessesare provided on a surfacethat crosses an axial direction of the hub. Each recesshas a first areaand a second area. The first areais circumferentially arranged and extends in a substantially circumferential direction. The second areais connected to an outer circumferential side of the first areaand has a shorter length in the circumferential direction than the first area. The weightis closely adhered to wall surfacesandformed along a radial direction in the second areaso as to prevent separation thereof.