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:
Feb. 24, 2026
Filed:
Sep. 20, 2021
Husqvarna Ab, Huskvarna, SE;
Magnus Rosén, Alingsås, SE;
Victor Johansson, Partille, SE;
David Dufke, Veberöd, SE;
Johan Berg, Alingsås, SE;
HUSQVARNA AB, Huskvarna, SE;
Abstract
A hand-held electrically powered cut-off tool () for cutting concrete and stone by a rotatable cutting disc (), the cut-off tool () comprising an electric motor () arranged to be controlled by a control unit () via a motor control interface (), wherein the control unit () is arranged to obtain data indicative of an angular velocity of the cutting disc (), and to detect a kickback condition based on a decrease in angular velocity, wherein the control unit () is arranged to control an electromagnetic braking of the electric motor () in response to detecting a kickback condition, wherein the control unit () is arranged to determine an angular acceleration associated with the electric motor (), and to detect the kickback condition based on a comparison between the determined angular acceleration and a configurable detection threshold.