Milwaukee Electric Tool Corporation

Todd C Hunkins

Matthew J Mergener

Andrew T Beyerl

Michael Kolden

Matthew P Wycklendt

William E Check

John W Thiele

Gary D Meyer

John S Scott

Jonathan A Zick

Scott D Bublitz

Richard H Jungmann

Michael W Phillips

Daniel J Alberti

Kenneth Jordan

John Sara, Iii

Nancy Uehlein-Procter

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 power tool includes a housing assembly having a first housing portion and a second housing portion supported for pivoting movement relative to the first housing portion about a pivot axis. The first housing portion supports a motor. The second housing portion includes a chuck for supporting a tool element. The power tool also includes a gear supported within the housing assembly for rotation relative to at least one of the first and second housing portions about the pivot axis. The gear is operable to transfer drive force from the motor to the tool element.

Power tool, battery, charger and method of operating the same

Growing community of inventors

Eagle, WI, United States of America

Todd C Hunkins