Milwaukee Electric Tool Corporation

Matt Lombardo

Jeffery D Spraggon

Bryan C Kendall

Ian McConeghy

Spencer D Stingl

Hunter Wiehe

Alan J Rehfeldt

Jesse Gibb

A rotary hammer includes a housing and a mode selection dial supported in the housing. The mode selection dial includes a cam. The housing supports a motor providing a rotational output. The housing supports a linkage moveable between a first position and a second position in response to engagement by the cam. A loss-of-control detection system measures acceleration of the housing and disables the motor upon the acceleration exceeding an acceleration threshold. The housing supports an operating mode detection system including a magnet and a Hall-effect sensor. The magnet is coupled to the linkage and moveable therewith between a third position corresponding to the first position of the linkage and a fourth position corresponding to the second position of the linkage. The Hall-effect sensor provides an output signal indictive of the position of the magnet. The loss-of-control detection system is selectively disabled based upon the output signal.

Operating mode detection system for rotary hammer

Growing community of inventors

Muskego, WI, United States of America

Matt Lombardo