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:
Jun. 18, 2024
Filed:
Jan. 07, 2022
Black & Decker Inc., New Britain, CT (US);
Brian E. Friedman, Baltimore, MD (US);
Peter Hague Wadeson, Silver Spring, MD (US);
Eric Louis Kunz, Shrewsbury, PA (US);
Bhanuprakash Villuri, Towson, MD (US);
Tyler Petrus, Baltimore, MD (US);
Wing W. Lin, Bel Air, MD (US);
BLACK & DECKER INC., New Britain, CT (US);
Abstract
A power tool includes a housing, a brushless motor received in the housing, a power switch coupled to the housing and actuatable by a user, a controller configured to control power delivery to the motor in response to actuation of the power switch, and an output spindle configured to rotate when the motor is energized. The controller is configured to maintain an amount of current delivered to the motor to be less than or equal to a current limit by turning off or reducing power to the motor for a time period if the current exceeds the current limit and then restarting power delivery to the motor. The time period is greater than the duration of one full current cycle.