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. 30, 2022
Filed:
Feb. 19, 2020
Black & Decker Inc., New Britain, CT (US);
Andrew M. Palich, Ellicott City, MD (US);
Michael R. Marjomaa, Mount Wolfe, PA (US);
Kevin L. Pulley, White Marsh, MD (US);
David J. Smith, Columbia, MD (US);
Dennis A. Bush, Dillsburg, PA (US);
Mark T. Cherry, White Marsh, MD (US);
Black & Decker Inc., New Britain, CT (US);
Abstract
A power tool is provided including a brushless DC (BLDC) motor having a stator assembly and a rotor; a substantially-cylindrical motor housing having an open end for receiving the stator assembly, a rear end, a substantially-cylindrical bearing pocket formed in the rear end to receive the rear bearing of the motor therein, and a radially-extending slot formed at or near its rear end; and a positional sensor board radially received within the slot along a central receiving axis. The positional sensor board includes a curved inner edge shaped to be positioned around the bearing pocket and includes positional sensors mounted around the curved inner edge and facing the rotor to sense a rotational position of the rotor. The curved inner edge is disposed on a side corner of the positional sensor board such that the positional sensor board is asymmetrically-shape in a direction of the receiving axis.