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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 12438424 B1

PDFFull Text
Date of Patent:
Oct. 07, 2025

Filed:

Oct. 18, 2022

Electric fan

Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventor:

David H. Menheere, Norval, CA;

Assignee:

PRATT & WHITNEY CANADA CORP., Longueuil, CA;

Attorney:

Norton Rose Fulbright Canada LLP

Primary Examiner:

Gary A Nash

Int. Cl.
CPC ...
H05K 7/20 (2006.01); B64D 35/021 (2024.01); F04D 25/04 (2006.01); H02K 9/06 (2006.01); H02K 16/00 (2006.01); H02K 16/02 (2006.01); B64D 27/34 (2024.01); F16H 1/22 (2006.01); H02K 7/116 (2006.01);
U.S. Cl.
CPC ...
H02K 16/00 (2013.01); B64D 35/021 (2024.01); F04D 25/045 (2013.01); H02K 16/02 (2013.01); B64D 27/34 (2024.01); F16H 1/22 (2013.01); H02K 7/116 (2013.01); H02K 9/06 (2013.01); H05K 7/20163 (2013.01); H05K 7/20918 (2013.01);
Abstract

An electric fan for producing thrust to propel an aircraft is disclosed. The electric fan comprises a stator, a fan rotor rotatably mounted relative to the stator and an electric motor mounted to the stator and drivingly engaged with the fan rotor to cause rotation of the fan rotor relative to the stator. The fan rotor comprises an annular body defining a flow passage therethrough and a plurality of fan blades disposed in the flow passage and mounted for common rotation with the annular body about a fan rotation axis. The electric motor has a motor rotation axis that differs from the fan rotation axis.

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Menheere, David. (2025). Electric fan (U.S. Patent No. 12438424). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12438424

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