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:
Nov. 11, 2003
Filed:
Mar. 08, 2002
Applicant:
Inventor:
Satoshi Masuo, Kitasaku-gun, JP;
Assignee:
Minebea Co., Ltd., Kitasaku-gun, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 2/938 ;
U.S. Cl.
CPC ...
F04D 2/938 ;
Abstract
In an axial flow fan motor having openings through which air can flow linearly in the axial direction provided between a plurality of blades which rotate along with the rotation of the motor, the plurality of blades are arranged at different intervals or at equal intervals every other blade circumferentially around the rotation axis of the motor. With this axial flow fan motor, when two axial flow fan motors are stacked in the axial direction and either one is selectively used, the blades of the other fan motor that is stopped do not obstruct airflow from the fan motor that is being driven.