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:
Jul. 21, 2026
Filed:
Mar. 20, 2024
GM Global Technology Operations Llc, Detroit, MI (US);
Rebecca K. Risko Cattell, Royal Oak, MI (US);
Edward L. Kaiser, Orion, MI (US);
Cheongun Han, Novi, MI (US);
Matthew James Bozich, Warren, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A rotor for an electric machine includes a rotor core having one or more cavities internal to the rotor core, the cavities defined by a wall of the rotor core. Laminations are stacked together to form the rotor core, and the laminations define the cavities. A body or bodies, which may be magnets, extend within the cavities. A subset of the laminations each include a tab system with at least one tab configured to preload the body to a seated position against the wall, and to maintain the bodies in the seated position within the cavity.