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.

Date of Patent:
Mar. 25, 2025

Filed:

Feb. 01, 2022
Applicant:

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

Inventors:

Dustin Jefferies, Baltimore, MD (US);

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

Marcus E. E. Rydin, Baltimore, MD (US);

Justin H. Ayers, Jarrettsville, MD (US);

Sumiteru Mori, Baltimore, MD (US);

John B. Fogle, White Hall, MD (US);

Kristopher Cochran, Middle River, MD (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 3/52 (2006.01); F16C 17/02 (2006.01); F16C 35/06 (2006.01); H02K 1/2706 (2022.01); H02K 5/06 (2006.01); H02K 5/173 (2006.01); H02K 7/08 (2006.01); H02K 7/14 (2006.01); H02K 11/00 (2016.01); H02K 11/215 (2016.01); H02K 11/33 (2016.01); H02K 11/38 (2016.01); H02K 21/16 (2006.01); B25F 5/00 (2006.01); B25F 5/02 (2006.01);
U.S. Cl.
CPC ...
H02K 3/522 (2013.01); F16C 17/02 (2013.01); F16C 35/06 (2013.01); H02K 1/2706 (2013.01); H02K 5/06 (2013.01); H02K 5/1732 (2013.01); H02K 7/083 (2013.01); H02K 7/145 (2013.01); H02K 11/0094 (2013.01); H02K 11/215 (2016.01); H02K 11/33 (2016.01); H02K 11/38 (2016.01); H02K 21/16 (2013.01); B25F 5/001 (2013.01); B25F 5/02 (2013.01); F16C 2380/26 (2013.01); H02K 2203/03 (2013.01); H02K 2211/03 (2013.01); H02K 2213/03 (2013.01);
Abstract

A power tool is provided including a housing having a grip portion with a grip circumference of smaller than or equal to approximately 120 mm; and a brushless direct-current (BLDC) motor at least partially disposed within the grip portion of the housing and configured to output a maximum power output of at least 450 watts. The motor includes a stator including a stator core and stator windings; and a rotor rotatably received within the stator and including a rotor shaft extending along a longitudinal axis and a series of permanent magnet rings mounted sequentially along the longitudinal axis and surrounding the rotor shaft, each permanent magnet including a plurality of magnetic poles.


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