Milwaukee Electric Tool Corporation

Michael R Sande

Ian A Duncan

Jacob Paul Schneider

Troy Charles Thorson

Alex Huber

Scott Robert Fischer

Hans T Banholzer

Ryan Allen Dedrickson

Mackenzie J Nick

Maxwell L Merget

Michael Halverson

Peter Malak

Guang Hu

Nicholas C Mantych

Wei Chao Xu

Fan Bin Zeng

Qiao Cai

Michael A Matthews

Evan Brown

Nikos A Gainacopulos

Jingyuan Liang

Derek J Schwab

Joseph J Drees

Joseph T Lottes-Paukner

Steve Cunningham

Dereek J Schwab

A power tool includes a housing with a motor housing portion and a handle portion extending from the motor housing portion, a motor supported within the motor housing portion, a drive assembly operatively coupled to the motor, the drive assembly producing vibrations during operation of the power tool, a battery receptacle located within the handle portion, a battery at least partially insertable into the battery receptacle along a battery axis, the battery configured to provide power to the motor, and a vibration mitigation system configured to reduce transmission of the vibrations produced by the drive assembly to the battery.

Power tool with battery vibration mitigation

A rotary power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor. The rotary power tool further includes a non-contact speed selector switch that is separate from the trigger switch and configured to adjust a rotational speed of the motor. The non-contact speed selector switch is positioned in a foot of the handle portion opposite the motor housing portion.

Non-contact speed selector switch in rotary power tool

A power tool supportable by a lanyard. The power tool includes a motor housing, a motor arranged in the motor housing, a front housing, an output member extending from the front housing, a gear case, and a gear train arranged in the gear case. The gear train configured to transfer torque from the motor to the output member. The power tool further includes a first fastener securing the front housing to the motor housing and a bracket to which the lanyard is attachable. The bracket is fastened to one of the front housing, the motor housing, or the gear case by a second fastener that does not secure the front housing to the motor housing.

Power tool

A telescoping tool includes a pole assembly, a driveshaft, a plurality of bearings, and at least one connection member. The pole assembly includes an outer pole and an inner pole. The inner pole is slidably received in the outer pole. The pole assembly is movable between a retracted configuration and an extended configuration. The driveshaft extends longitudinally in the outer pole and the inner pole. Each bearing of the plurality of bearings includes a driveshaft passage defined therein. The driveshaft passage receives the driveshaft therethrough. Each bearing further includes an end connection passage defined therein. The at least one connection member joins adjacent bearings of the plurality of bearings. The at least one connection member is disposed in the end connection passage of each of the adjacent bearings.

Telescoping tool with collapsible bearing assembly

An impact tool includes an electric motor and a housing containing the electric motor, the housing including a battery receptacle. The battery receptacle includes an isolation member configured to selectively and detachably couple to a battery pack to electrically connect the battery pack to the electric motor. The isolation member includes opposed rails configured to be received into sliding engagement with channels formed in the housing. The battery receptacle also includes an elastomeric damper supported within the housing. During operation of the impact tool, the isolation member is configured to translate relative to the housing and impact the elastomeric damper which, in turn, is configured to attenuate the transmission of vibration from the housing to the battery pack.

Impact tool

A tool includes a housing, a drive assembly including an output shaft extending from the housing such that a tool element for performing work on a workpiece is attachable to the output shaft, and a bushing disposed within the housing. The bushing rotatably supports the output shaft. The bushing is impregnated with lubricant such that the bushing is self-lubricating, and the bushing has an impregnation ratio between about 5% and about 25%.

Lubricant-impregnated bushing for impact tool

A rotary power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor. The rotary power tool further includes a non-contact speed selector switch positioned in the housing. The non-contact speed selector switch is configured to adjust a rotational speed of the motor. The non-contact speed selector switch is separate from the trigger switch.

A rotary impact tool includes a housing, an electric motor, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece of at least 900 ft-lbs of fastening torque. An anvil has a bore defining a hexagonal cross-sectional shape and having a nominal width of 7/16 inches. A hammer is rotationally and axially movable relative to the anvil for imparting the consecutive rotational impacts upon the anvil. A spring biases the hammer in an axial direction toward the anvil. A battery pack has a nominal voltage of at least 18 Volts and a nominal capacity of at least 5 Ah. The rotary impact tool has an overall weight including the battery pack that is less than or equal to 7.5 pounds. A ratio of the fastening torque to the overall weight is greater than or equal to 120 ft-lbs per pound.

Rotary impact tool

A power tool is supportable by a lanyard. The power tool includes a motor housing, a motor arranged in the motor housing, front housing, an output member extending from the front housing, a gear case, and a gear train arranged in the gear case. The gear train is configured to transfer torque from the motor to the output member. The power tool also includes a first fastener securing the front housing to the motor housing, and a bracket fastened to one of the front housing, the motor housing, or the gear case by a second fastener that does not secure the front housing to the motor housing. The power tool also includes a support member secured to the one of the front housing, the motor housing, or the gear case by the bracket. The support member is attachable to the lanyard.

A power tool includes a housing having a motor housing portion and a front casing coupled to the motor housing portion. The power tool also includes an electric motor positioned within the motor housing portion, a drive assembly having an output shaft to which a tool element for performing work on a workpiece is attachable, and a powdered metal bushing disposed within the front casing that rotatably supports the output shaft.

System for cooling a power tool. One exemplary power tool includes a housing including an air intake and an air exhaust. The power tool further includes a motor and a fan configured to pull cooling air into the housing through the air intake, and exhaust the cooling air out of the housing through the air exhaust. The power tool further includes a plurality of field-effect transistors (FETs). The FETs couple the stator coils to a power source. The power tool further includes a FET board within the housing. The power tool further includes a heat sink within the housing. The heat sink includes a first mounting portion and a second mounting portion. Each of the mounting portions includes a horizontal fin extending toward a respective side of the housing. A plurality of vertical fins extends from a top surface of each of the horizontal fins.

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Waukesha, WI, United States of America

Michael R Sande