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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12576549-B2, on 17 March 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000001882

Electrostatic clutch for power tool

Published
Permanent URL
Classification
Tools & Tooling › Powered Hand Tools
Inventors
HOWARD GEOFFREY S, LAZZARO MATTHEW, VELDERMAN MATTHEW J
Assignee
BLACK & DECKER INC
Original source
US-12576549-B2, the United States Patent and Trademark Office, 17 March 2026
Document SHA-256
a77a69eb0ad4ced51ae5283481b4317dd3afb9390ea6311e8657d3a59b4bf4ac

Abstract

A power tool that includes a housing, a motor, an end effector, an electrostatic clutch assembly, and a control circuit is provided. In a first mode of operation, the control circuit causes a first voltage to be applied to a first electrode and a different second voltage to be applied to a second electrode, generating a first attractive force between the first and second electrodes, which causes an output member to rotate together with an input member when a torque on the output member is less than or equal to a first threshold value and which causes the output member to rotationally slip relative to the input member when the torque on the output member exceeds the first threshold value, interrupting torque transmission from the input member to the output member.

Publication information

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Citation

OpenTechnical Publication OT-2026-000001882, “Electrostatic clutch for power tool,” published September 15, 2026 at 19:09:16 UTC, https://opentechnical.org/p/OT-2026-000001882.

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