Blount, Inc.

Oregon Tool, Inc.

Stephen Jones

Jonathan Ziring

Noah Erickson

Thomas Pitts

An electric hand tool that includes an electric motor, an electrical position indicator for operation by a user, and a control unit for controlling power delivery from a power supply to an electric motor, based signals received from the electrical position indicator. The electrical position sensor may be coupled to a trigger operable by a user, and the electrical position sensor may be configured to detect the relative position of the trigger and to only operate in the middle of its possible range. The control unit may determine if the signals received from the electrical position indicator are out of a defined range. If the signals received from the electrical position indicator are out of a defined range, the control unit may register a fault, such as a fully open and/or fully short fault.

Trigger potentiometer

A electric power tool, comprising a control system electrically coupled to a power supply and a motor to supply current to the motor, where the motor may be coupled to a driven element of a tool so as to drive the driven element. The control system may have a continuous power mode and a boost power mode to supply current to the motor at a greater amount than in continuous power mode, and may be configured to switch between the continuous power mode and the boost power mode based upon a sensed load on the electric motor. In some embodiments, the control system may switch to a cutback power mode to supply current to the motor at a lower amount than in continuous power mode is the load does not decrease before a predetermined time elapses.

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Portland, OR, United States of America

Stephen Jones