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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 12589880 B1

PDFFull Text
Date of Patent:
Mar. 31, 2026

Filed:

Apr. 20, 2022

Rotor, and propeller driving device and aircraft using the same

Applicant:

Amotech Co., Ltd., Incheon, KR;

Inventors:

Jeong Hoon Lee, Incheon, KR;

Seung Jin Choi, Incheon, KR;

Assignee:

AMOTECH CO., LTD., Incheon, KR;

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Oluseye Iwarere

Assistant Examiner:

Nicholas Lee Setzer

Int. Cl.
CPC ...
B64D 33/08 (2006.01); B64D 27/30 (2024.01); B64D 27/32 (2024.01); B64D 27/34 (2024.01); H02K 1/278 (2022.01); H02K 1/28 (2006.01); H02K 5/20 (2006.01); H02K 7/08 (2006.01); H02K 9/06 (2006.01); H02K 9/19 (2006.01); H02K 9/22 (2006.01); H02K 21/16 (2006.01);
U.S. Cl.
CPC ...
B64D 33/08 (2013.01); B64D 27/30 (2024.01); B64D 27/32 (2024.01); B64D 27/34 (2024.01); H02K 1/278 (2013.01); H02K 1/28 (2013.01); H02K 5/203 (2021.01); H02K 5/207 (2021.01); H02K 7/083 (2013.01); H02K 9/06 (2013.01); H02K 9/19 (2013.01); H02K 9/223 (2021.01); H02K 21/16 (2013.01);
Abstract

Provided are a rotor, and a propeller driving device and an aircraft using same. The propeller driving device includes: a housing in which an upper cover and a lower cover having a plurality of through holes are respectively coupled to an upper portion and a lower portion of a cylindrical case; a stator arranged inside the case; a rotor arranged at a distance from the stator; and a rotary shaft connected to the rotor through a plurality of bridges and having both ends rotatably supported by an upper bearing and a lower bearing positioned at respective centers of the upper cover and the lower cover, wherein inner cooling of a motor is formed by an air flow passage that passes through a plurality of through holes of the upper cover and the lower cover and a plurality of spaces formed between the plurality of bridges.

Find Patent Forward Citations

Lee, Jeong. (2026). Rotor, and propeller driving device and aircraft using the same (U.S. Patent No. 12589880). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12589880

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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