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:
Aug. 25, 2015
Filed:
Sep. 04, 2012
Applicants:
Daigo Yamano, Azumino, JP;
Fumihide Sasaki, Matsumoto, JP;
Inventors:
Daigo Yamano, Azumino, JP;
Fumihide Sasaki, Matsumoto, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); F04D 29/42 (2006.01); F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); F04D 29/4213 (2013.01); F04D 29/4226 (2013.01); F04D 29/703 (2013.01);
Abstract
A centrifugal fan introducing air via an inlet port in a direction of a rotation axis and discharging the air via an outlet port in the a direction of a centrifugal force produced by rotation includes: an impeller having a plurality of vanes around the rotation axis; and a housing including the inlet port and supporting the impeller such that the impeller is allowed to freely rotate in the housing. An inclined portion is formed at least at a part of edge portion of the inlet port, the inclined portion widening to the side that the impeller is disposed.