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.

Date of Patent:
Aug. 05, 2014

Filed:

Nov. 10, 2011
Applicant:

Takamasa Yamashita, Kyoto, JP;

Inventor:

Takamasa Yamashita, Kyoto, JP;

Assignee:

Nidec Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

A blower fan includes a housing arranged to accommodate an impeller, wherein an upper surface portion of the housing includes a motor fixing portion, a peripheral portion, and a plurality of ribs interconnecting the motor fixing portion and the peripheral portion, the upper surface portion including a plurality of air intake ports defined between the motor fixing portion, the peripheral portion and the plurality of ribs being arranged to oppose the impeller; and the peripheral portion includes a peripheral low portion arranged to surround or substantially surround outer peripheries of the air intake ports and positioned lower than upper surfaces of the plurality of ribs and a peripheral high portion provided with rib extension portions continuously extending from the plurality of ribs and positioned higher than an upper surface of the peripheral low portion.


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