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. 16, 2025
Filed:
Mar. 07, 2025
Black & Decker Inc., New Britain, CT (US);
Geoffrey S. Howard, Columbia, MD (US);
Matthew J. Lazzaro, Forest Hill, MD (US);
Tal Gottesman, Lutherville, MD (US);
Thomas Streett, Fallston, MD (US);
Daniel L. Schwarz, Timonium, MD (US);
Parth Amrapurkar, Owings Mills, MD (US);
Scott M. Rudolph, Aberdeen, MD (US);
Kristian Brian Sims, Baltimore, MD (US);
Black & Decker Inc., New Britain, CT (US);
Abstract
A power tool includes an electrostatic clutch assembly disposed between a motor and an end effector. A control circuit causes a first voltage to be applied to a first electrode of the electrostatic clutch assembly and a second voltage to be applied to a second electrode of the electrostatic clutch assembly, the first voltage being different from the second voltage, generating a first attractive force between the first and second electrodes, causing a shaft and a clutch housing to be coupled to each other when a torque on one of the shaft or the clutch housing is less than or equal to a first threshold value, and allowing the one of the shaft or the clutch housing to rotationally slip relative to the other of the shaft or the clutch housing when the torque on the one of the shaft or the clutch housing exceeds the first threshold value.