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:
Sep. 01, 2026
Filed:
Apr. 27, 2023
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);
Abhinav Jayakumar, Baltimore, MD (US);
BLACK & DECKER INC., New Britain, CT (US);
Abstract
An impact power tool includes a motor, a controller, and an impact mechanism configured to rotationally drive an output spindle. The controller is configured to control power delivered to the motor, during a third phase of operation after a second phase of operation and starting upon expiration of a predetermined time period. The third phase has one or more of a third non-zero target rotational speed, a third duty cycle setting, a third conduction band setting, or a third advance angle setting. The controller is configured to control power delivered to the motor, during a fourth phase of operation after the third phase upon detection of a reduction in load on the output spindle or cessation of impacting. The fourth phase has one or more of a fourth non-zero target rotational speed, a fourth duty cycle setting, a fourth conduction band setting, or a fourth advance angle setting.