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:
Feb. 07, 2017

Filed:

Sep. 08, 2015
Applicant:

Kyocera Document Solutions Inc., Osaka-shi, Osaka, JP;

Inventor:

Noriko Masuta, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 17/04 (2006.01); F04D 29/28 (2006.01); F04D 29/62 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F04D 17/04 (2013.01); F04D 29/282 (2013.01); F04D 29/624 (2013.01); F04D 29/661 (2013.01);
Abstract

A cross-flow fan () including a plurality of impellers (to) connected in a direction of a rotation axis, each of the impellers (to) including: a plurality of blades (to); a first connection portion () having at least one projection; and a second connection portion () having concavities in a larger quantity than the projection, wherein, in a connection between the first connection portion () of one of the impellers (to) and the second connection portion () of another one of the impellers (to), the projection of the one of the impellers (to) and one part of the concavities of the other one of the impellers (to) are fitted to each other in one fitted state among N (N is an integer not smaller than two) ways of fitted states of having a matched rotation axis.


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