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.:

US 6917521 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 12, 2005

Filed:

Dec. 26, 2002
Applicants:

Kentaro Tomioka, Sayama, JP;

Kenichi Ishikawa, Hamura, JP;

Katsumi Hisano, Matsudo, JP;

Kei Matsuoka, Kawasaki, JP;

Hideyuki Toma, Kodaira, JP;

Inventors:

Kentaro Tomioka, Sayama, JP;

Kenichi Ishikawa, Hamura, JP;

Katsumi Hisano, Matsudo, JP;

Kei Matsuoka, Kawasaki, JP;

Hideyuki Toma, Kodaira, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D029/44 ;
U.S. Cl.
CPC ...
Abstract

An electronic apparatus is provided with a housing containing a heat generating component, and a blower unit contained in the housing and used to cool the heat generating component. The blower unit includes an impeller, and a casing containing the impeller. The casing has suction ports, a chamber located around the impeller and a discharge port located at the downstream end of the chamber. The chamber has a depth gradually increased radially away from the impeller.


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