Milwaukee Electric Tool Corporation

William E Check

Matthew J Mergener

Andrew T Beyerl

Michael Kolden

Matthew P Wycklendt

John W Thiele

Todd C Hunkins

Troy Charles Thorson

Brandon L Verbrugge

Michael Naughton

Scott David Schneider

Scott D Eisenhardt

Thomas G Simeone

Steven W Hyma

Toby J Lichtensteiger

Matthew P Wychlendt

A power tool with a combined printed circuit board (PCB) that reduces internal wiring of the power tool and provides a large amount of air flow to internal components. In some instances, the combined PCB has a surfboard shape and includes a motor control unit and power switching elements (Field Effect Transistors or FETs). The combined surfboard PCB is located above the trigger, but below the motor and drive mechanism. In other instances, the combined PCB has a doughnut shape and is located coaxially with a motor shaft. The combined PCB may be positioned between a doughnut-shaped control PCB and the motor.

Brushless DC motor power tool with combined PCB design

A powered dispensing tool includes a housing, a motor positioned within the housing, a rack coupled to the motor for powered translation in at least one of a forward direction and a reverse direction, and a transmission selectively coupling the motor and the rack. The transmission includes an input ring rotatable in response to rotation of the motor in a first direction corresponding with powered translation of the rack in the forward direction, a first clutch member engaged with the rack through an intermediate gear, and a second clutch member that receives torque from the input ring and that is movable in response to rotation of the motor in the first direction toward a first position engaging the first clutch member. The second clutch member is also movable in response to rotation of the motor in an opposite, second direction toward a second position disengaged from the first clutch member.

Powered dispensing tool

A power tool includes a tool housing defining a cavity and a pocket formed in a wall of the tool housing. A motor is positioned within the cavity, and a trigger mechanism is moveably coupled to the tool housing. A speed selector switch is positioned within the pocket, the speed selector switch including a push-button operable to receive a speed selection and a plurality of speed indicators. The speed selector switch is operable to output a speed signal based on the speed selection, and the speed indicators indicate the speed selection. The power tool further includes a controller operable to receive the speed signal from the speed selector switch, the speed signal indicative of a selected speed, receive an activation signal from the trigger switch, and operate the motor at the selected speed upon receiving the activation signal.

Power tool having a speed selector switch

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Milwaukee, WI, United States of America

William E Check