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:
Nov. 07, 2023

Filed:

Aug. 02, 2022
Applicant:

Sanyo Denki Co., Ltd., Tokyo, JP;

Inventor:

Yoshihisa Yamazaki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 19/00 (2006.01); F04D 29/52 (2006.01);
U.S. Cl.
CPC ...
F04D 19/002 (2013.01); F04D 29/522 (2013.01);
Abstract

Provided is an axial fan including: a rotor blade; a base portion placed on a rotation axis of the rotor blade and on a downstream side in an air-blowing direction of the rotor blade; and an outer frame portion where the rotor blade and the base portion are housed, wherein the base portion includes an inclined portion in an end portion, on the downstream side in the air-blowing direction, of the base portion, the inclined portion reducing in diameter toward the downstream side in the air-blowing direction, the inclined portion includes opening portions and hollow ribs, the opening portions are placed at predetermined intervals in a peripheral direction of the inclined portion, and each of the hollow ribs surrounds a peripheral part on an outer side of each of the opening portions, sticking out from the inclined portion toward the downstream side in the air-blowing direction along the rotation axis.


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Yamazaki, Yoshihisa. (2023). Axial fan (U.S. Patent No. 11808271). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11808271

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