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:
Feb. 23, 2021
Filed:
May. 20, 2020
Milwaukee Electric Tool Corporation, Brookfield, WI (US);
Andrew T. Beyerl, Pewaukee, WI (US);
Keith Boulanger, Kenosha, WI (US);
Alex Huber, Brookfield, WI (US);
William A. Elger, West Bend, WI (US);
Jeffrey M. Wackwitz, Waukesha, WI (US);
Milwaukee Electric Tool Corporation, Brookfield, WI (US);
Abstract
A power tool including a housing, a controller within the housing, and a brushless motor within the housing and controlled by the controller. The brushless motor includes a stator assembly, a rotor core, and a rotor enclosure. The stator assembly includes a stator core having stator laminations defining a stack length in an axial direction. The rotor enclosure includes a front end cap provided on a first side of the rotor core having a front bearing holder; and a rear end cap provided on a second side of the rotor core. The brushless motor further includes a fan, a front bearing, and a rear bearing. The front bearing holder and the fan define a bearing-to-fan length in the axial direction between axial ends of the front bearing holder and the fan, wherein a difference between the bearing-to-fan length and the stack length is less than 23.5 millimeters.