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. 23, 2012
Filed:
Jun. 12, 2009
Takaya Otsuki, Kyoto, JP;
Tatsuya Akase, Kyoto, JP;
Tsunenori Tatsuno, Kyoto, JP;
Toshikazu Fukunaga, Kyoto, JP;
Kazumi Takeshita, Kyoto, JP;
Tomohiko Ogasawara, Kyoto, JP;
Takaya Otsuki, Kyoto, JP;
Tatsuya Akase, Kyoto, JP;
Tsunenori Tatsuno, Kyoto, JP;
Toshikazu Fukunaga, Kyoto, JP;
Kazumi Takeshita, Kyoto, JP;
Tomohiko Ogasawara, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
An impeller in a centrifugal fan includes a support portion having a cylindrical outer circumferential surface coaxial or substantially coaxial with a center axis and a plurality of moving blades arranged on the outer circumferential surface of the support portion independently of one another and configured to draw an air along the center axis and expel the air radially outwards when rotated about the center axis together with the support portion. At least one of the moving blades includes a first blade portion connected to, and extending radially outwards from, the outer circumferential surface of the support portion, at least one second blade portion having a radial inner end portion radially spaced apart from the outer circumferential surface of the support portion and a connecting member arranged to interconnect the first blade portion and the second blade portion.