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:
Aug. 26, 2025
Filed:
Aug. 03, 2023
Applicant:
Milwaukee Electric Tool Corporation, Brookfield, WI (US);
Inventors:
Russell M. Rapant, Menomonee Falls, WI (US);
Andrew T. Beyerl, Pewaukee, WI (US);
Assignee:
MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/28 (2006.01); H02K 1/17 (2006.01); H02K 15/12 (2006.01);
U.S. Cl.
CPC ...
H02K 1/28 (2013.01); H02K 1/17 (2013.01); H02K 15/12 (2013.01); Y10T 29/49012 (2015.01); Y10T 29/53143 (2015.01);
Abstract
A method of forming a molded rotor assembly for an electric motor includes providing a lamination stack, molding an insulative material to the lamination stack to form an integral fan and magnet retention coupled to the lamination stack, the lamination stack and the integral fan and magnet retention together forming a rotor body, and pressing a shaft into a central aperture formed in the rotor body to achieve an interference fit between the shaft and the lamination stack.