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:
Dec. 26, 2023
Filed:
Feb. 01, 2022
Black & Decker Inc., New Britain, CT (US);
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);
John D. Cox, Lutherville, MD (US);
Kristopher Cochran, Middle River, MD (US);
Barak N. Gohn, Shrewsbury, PA (US);
BLACK & DECKER, INC., New Britain, CT (US);
Abstract
A power tool is provided including a housing including a grip portion; and a brushless direct-current (BLDC) motor at least partially disposed within the grip portion of the housing. The motor includes a stator having a rotor core, a rotor, and front and rear bearing support structures. The stator core includes a non-segmented construction with a maximum diameter of approximately smaller than or equal to 34 mm, and a ratio of a motor size (Km) constant of the motor to a length of the motor is in the range of approximately 0.39 to 0.59 (Nmm/√W)/mm. When powered by a 20 V battery pack, a ratio of a maximum power output of the motor to a volume of the motor is at least approximately 0.0106 W/mm{circumflex over ( )}3.