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.:
Date of Patent:
Oct. 06, 2026
Filed:
Feb. 16, 2023
Applicant:
Borgwarner Inc., Auburn Hills, MI (US);
Inventor:
Tyler R. Garrard, Arden, NC (US);
Assignee:
BorgWarner Inc., Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 15/03 (2025.01); H02K 1/04 (2006.01); H02K 7/00 (2006.01); H02K 7/18 (2006.01);
U.S. Cl.
CPC ...
H02K 15/03 (2013.01); H02K 1/04 (2013.01); H02K 7/003 (2013.01); H02K 7/1823 (2013.01);
Abstract
A rotor assembly configured to be used by an electric motor includes an output shaft; one or more permanent magnets coupled with the output shaft to prevent angular displacement of the permanent magnet(s) relative to the output shaft; one or more composite sleeves positioned concentrically and radially outwardly relative to the permanent magnets; and a barrier coating applied to the composite sleeve that prevents contact with a surface of the sleeve(s) exposed to an ambient environment.