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 10947994 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 16, 2021

Filed:

Jul. 13, 2016
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Kazuchika Tsuchida, Tokyo, JP;

Naho Adachi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/62 (2006.01); F04D 29/056 (2006.01); F04D 29/04 (2006.01); F04D 25/16 (2006.01); F04D 29/053 (2006.01); F16C 19/54 (2006.01); F04D 17/08 (2006.01); B25F 5/00 (2006.01); F04D 17/16 (2006.01); F04D 29/051 (2006.01); F04D 29/58 (2006.01);
U.S. Cl.
CPC ...
F04D 29/62 (2013.01); B25F 5/008 (2013.01); F04D 17/08 (2013.01); F04D 17/16 (2013.01); F04D 25/166 (2013.01); F04D 29/04 (2013.01); F04D 29/051 (2013.01); F04D 29/053 (2013.01); F04D 29/056 (2013.01); F16C 19/54 (2013.01); F04D 29/5806 (2013.01); F16C 2360/44 (2013.01);
Abstract

An electric blower includes: a motor including a rotary shaft; a first centrifugal fan fixed to a first end side of the rotary shaft; a second centrifugal fan fixed to a second end side of the rotary shaft opposite to the first end side; and a casing surrounding the motor, the first centrifugal fan and the second centrifugal fan. In the electric blower, first force applied by the first centrifugal fan to the rotary shaft in a first direction in an axial direction of the rotary shaft and second force applied by the second centrifugal fan to the rotary shaft in a second direction in the axial direction of the rotary shaft are opposite to each other during rotation of the rotary shaft.


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