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:
Sep. 01, 2026
Filed:
Nov. 08, 2024
GM Global Technology Operations Llc, Detroit, MI (US);
Mark R. Claywell, Birmingham, MI (US);
Brad J. Heckman, Oxford, MI (US);
Eric F. Grimminger, Rochester Hills, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A rotor includes a laminate core that defines poles and pole shoes. The pole shoes define slots for receiving wire coils. An outer wedge is disposed in the slots. The outer wedge includes a top portion disposed at an outer diameter of the rotor. The top portion includes an upper surface and a lower surface. The upper surface and the lower surface create a continuous curve that compresses against the pole shoes. The upper surface creates a first seal and the lower surface creates a second seal. The outer wedge also includes a bottom portion which continuously connects to the top portion and is in contact with the coil wires. The bottom portion includes a winding support surface and a wedge tip surface. The winding support surface connects to the lower surface of the top portion. The wedge tip surface extends towards the laminate core along the wedge central axis.