Milwaukee Electric Tool Corporation

Wyatt R Silha

Jacob Paul Schneider

Jeffrey M Wackwitz

Cameron R Schulz

John Gordon Marx

Joel D Snyder

Kyle C Fassbender

John Stanley Dey, Iv

Hans T Banholzer

Samuel Sheeks

David M Schwalbach

Jacob D Rosenthal

Zhi Wei Meng

Paul Rossetto

Qiang Li

Mark E Brouwer

Qian Guo Qin

Zachery Meyer

Pu Shao Zhang

Kyle J Radovich

Donald J Truettner

Vasil Zhmendak

Omid Shirazi

Nathan J Gustafson

Chien-Chih Chao

David J Gaulke

Francis X Summins

John S Iv Dey

A charger includes a housing with an interface positioned in a front wall and configured to engage a battery pack. The interface includes charging terminals positioned between a first rail and a second rail, a first groove positioned between the first rail and a wall of the housing, and a second groove positioned between the second rail and the wall of the housing. The interface is in communication with an interior of the housing. A fan is coupled within the housing adjacent the interface, and an air passage member includes a hollow body that has a first end coupled to the fan and a second end spaced apart from the first end extending through another wall of the housing. The fan is operable to suck an air flow into the housing from outside the housing and guide the air flow through the air passage member to the interface.

Battery pack and charger system

A battery pack includes a housing, at least one battery cell, and a handle assembly. The battery cell is disposed within the housing. The handle assembly is coupled to the housing. The handle assembly includes a first handle catch, an elongate flexible member, a second handle catch, and a grip layer. The elongate flexible member has a first end and a second end. The elongate flexible member is coupled to the first handle catch. The first handle catch is disposed nearer to the first end than to the second end. The second handle catch is coupled to the elongate flexible member nearer to the second end than to the first end. The grip layer is disposed on at least a portion of each of the first handle catch, the elongate flexible member, and the second handle catch.

Battery pack with handle

A battery charger may include a printed circuit board (PCB) having a first portion supporting alternating current (AC) electrical components and a second portion supporting direct current (DC) electrical components; an indicator including a light-emitting diode (LED) supported on the first portion of the PCB and operable to emit light; and an isolating member positioned on the first portion between the AC electrical components and the LED. A trace on the PCB may be electrically connected to the second portion of the PCB, the trace extending from the second portion and along the first portion, and the LED may be electrically connected to and receiving DC power through the trace, the LED being selectively positioned along a length of the trace. The LED may be positioned more than about 8 mm from the AC electrical components.

Battery charger including an isolating member

A power tool comprises a housing defining a grip portion, a motor having a motor drive shaft, a drive assembly including a crankshaft configured to receive torque from the motor drive shaft, an output assembly having an output member configured to receive torque from the crankshaft, a bearing rotatably supporting the crankshaft, a retainer configured to prevent translation of the bearing along the crankshaft past the retainer, and a transducer assembly disposed between the grip portion and the output member to measure the amount of torque applied through the output member.

Powered ratcheting torque wrench

Battery pack

Charger and charger system

A power tool includes a housing defining a grip portion, a motor having a motor drive shaft, a drive assembly coupled to the motor drive shaft and driven by the motor, an output assembly coupled to the drive assembly and having an output member that receives torque from the drive assembly, causing the output member to rotate about an axis, and a transducer assembly disposed between the grip portion and the output assembly to measure the amount of torque applied through the output member, when the motor is deactivated, in response to the power tool being manually rotated about the axis.

A battery pack including a housing having a first portion and a second portion coupled to the first portion. The first portion has a first wall and an interface extends from the first wall. The interface includes a plurality of terminal apertures that provide access to electrical terminals within the housing. The second portion has a second wall, and the second wall is positioned opposite the first wall. A first plurality of vents extends through the first wall and a second plurality of vents extends through the second wall. A cumulative surface area of the first plurality of vents is different than a cumulative surface area of the second plurality of vents.

A battery pack charging system includes a battery pack interface configured to receive a battery pack, a charging circuit coupled to the battery pack interface to provide charging current to the battery pack interface, and a controller coupled to the charging circuit and configured to control supply of charge current to the battery interface. The battery pack charging system further includes a power supply circuit coupled to the charging circuit, a filter circuit coupled to the power supply circuit and including a nanocrystalline ferrite common mode choke, and an alternating current plug configured to connect the filter circuit to an alternating current power source.

Charger with nanocrystalline ferrite choke

A battery charger includes a housing having support structure for simultaneously supporting at least two batteries of different types for charging including a first battery of a first type and a second batter of a second type. The battery charger further includes charger electronics supported by the housing and operable to output charging current to charge the first battery and charging current to charge the second battery. A fan is operable to cause air flow through the housing. A fan speed of the fan is adjustable based on a temperature of the battery charger (i) while at least one of the at least two batteries is coupled to the battery charger for charging and (ii) while no batteries are coupled to the battery charger for charging.

Battery charger

Battery charger including printed circuit board having an AC portion and a DC portion

Growing community of inventors

Milwaukee, WI, United States of America

Wyatt R Silha