Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
John C. Vanko0
Robert A. Usselman0
David Beers0
Date of Patent
July 2, 2013
Patent Application Number
12875354
Date Filed
September 3, 2010
Patent Citations Received
Patent Primary Examiner
Patent abstract
An overspeed protection subsystem is provided for a power tool having an electric motor. The overspeed protection subsystem is comprised of: a motor switch coupled in series with the motor; a motor control module interfaced with the motor switch to control switching operation of the motor switch; and an overspeed detection module that determines rotational speed of the motor and disables the power tool when the rotational speed of the motor exceeds a threshold.
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