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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.:

US 11654543 B1

PDFFull Text
Date of Patent:
May. 23, 2023

Filed:

Oct. 06, 2021

Brushless motor system for power tools

Applicant:

Black & Decker Inc., New Britain, CT (US);

Inventors:

Craig A. Oktavec, Forest Hill, MD (US);

David J. Smith, Columbia, MD (US);

Jarrett A. Dunston, Anderson, SC (US);

Andrew M. Palich, Ellicott City, MD (US);

Michael R. Marjomaa, York, PA (US);

Kevin L. Pulley, White Marsh, MD (US);

Assignee:

Black & Decker Inc., New Britain, CT (US);

Attorney:

Amir R. Rohani

Primary Examiner:

Eyamindae C Jallow

Int. Cl.
CPC ...
B25F 5/00 (2006.01); B25F 5/02 (2006.01); H02K 3/487 (2006.01); H02K 3/52 (2006.01); H02K 5/20 (2006.01); H02K 9/22 (2006.01); H02K 11/33 (2016.01); B24B 23/02 (2006.01); H02K 7/116 (2006.01); H02K 7/14 (2006.01); H02K 9/06 (2006.01); H02K 11/215 (2016.01); H02K 7/08 (2006.01); H02K 9/04 (2006.01); H02K 1/14 (2006.01); H02K 1/2706 (2022.01); H02K 3/18 (2006.01); H02K 21/16 (2006.01); H02K 3/34 (2006.01); H02K 5/10 (2006.01); H02K 3/38 (2006.01);
U.S. Cl.
CPC ...
B25F 5/008 (2013.01); B24B 23/028 (2013.01); B25F 5/02 (2013.01); H02K 1/146 (2013.01); H02K 1/2706 (2013.01); H02K 3/18 (2013.01); H02K 3/34 (2013.01); H02K 3/487 (2013.01); H02K 3/522 (2013.01); H02K 5/10 (2013.01); H02K 5/207 (2021.01); H02K 7/08 (2013.01); H02K 7/116 (2013.01); H02K 7/145 (2013.01); H02K 9/04 (2013.01); H02K 9/06 (2013.01); H02K 9/227 (2021.01); H02K 11/215 (2016.01); H02K 11/33 (2016.01); H02K 21/16 (2013.01); H02K 3/38 (2013.01); H02K 2203/09 (2013.01); H02K 2203/12 (2013.01); H02K 2213/03 (2013.01);
Abstract

A stator for a brushless DC (BLDC) motor includes a stator core having stator teeth extending radially inwardly towards a center bore, stator windings respectively wound around the stator teeth, and insulating inserts having substantially the same longitudinal length as the stator core. The insulating inserts are longitudinally received between adjacent stator windings at or near inner tips of the adjacent stator teeth to substantially seal the center bore of the stator assembly from the stator windings.

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