Milwaukee Electric Tool Corporation

Techtronic Power Tools Technology Limited

Troy Charles Thorson

Jeffrey Scott Holly

Jeffrey M Wackwitz

Beth E Cholst

Jeremy R Ebner

John S Scott

Jeffrey Charles Hessenberger

Andrew J Weber

David A Bierdeman

Nathan Bandy

Travis W Leathrum

Jacob Paul Schneider

James Wekwert

Randy S McDonald

Christopher Berg

Dale Borchardt

Michael Kolden

Marcus Wechselberger

Thomas Richard Bednar

Andrew R Wyler

James O Myrhum, Jr

Mackenzie J Nick

David C Graf

Andrew T Beyerl

Sean T Kehoe

Jacob N Zimmerman

Mitchell T Neuhoff

Matthew J Mergener

Jason D Thurner

Scott W Anderson

Ryan Allen Dedrickson

Michael Naughton

Luke J Skinner

Scott D Eisenhardt

Benjamin R Suhr

Daniel R Garces

Hans T Banholzer

William A Elger

Daryl S Richards

Kyle J Radovich

Emily C Doberstein

Mark D Willer

David R Bauer

Joseph H Ellice

David Hlavac

Leonard F Mikat-Stevens

Jason David Hetcher

Jason M Julius

Michael L Welliver

Edward Arthur Raleigh

David Brian Griep

Todd W Johnson

Mark Alan Kubale

Roger Dean Neitzell

Timothy Ryan Obermann

Gareth J Mueckl

Dennis J Grzybowski

Scott D Bublitz

Brandon L Verbrugge

John Stanley Dey, Iv

Jonathan E Abbott

Terry L Timmons

Timothy J Bartlett

John Gordon Marx

Jonathan Paul Lobert

Patrick Dennis Gallagher

Matthew N Thurin

Alex Huber

Scott H Micoley

Steven N Winkel

Cameron R Schulz

Scott David Schneider

Thomas Paul James

Thomas G Simeone

Andrew Delmar Van Hoorn

Jay J Rosenbecker

Michael S Steele

Jonathan A Zick

James G Ballard

Ryan James Denissen

Mitchell Carlson

Maxwell L Merget

Koon For Chung

David Paul Serdynski

Jonathon R Gasteiner

Michael A Verhagen

Matthew Post

Evan M Glanzer

Michael R Sande

Logan M Hietpas

Jarrod Kotes

William E Check

John E Koller

Connor P Sprague

Justin Miller

Marc S D'Antuono

Peter J Davies

Richard H Jungmann

Casey D Garces

Benjamin J Ludy

A power tool adapted to impart axial impacts to a tool bit includes a housing having a motor housing portion and a handle portion extending transversely from the motor housing portion, an electric motor supported in the motor housing portion and defining a motor axis, a non-rotatable barrel extending from the motor housing portion and defining a barrel axis parallel to the motor axis, a reciprocation drive assembly coupled to the electric motor and configured to convert torque from the electric motor to reciprocating motion of a piston received within the barrel for reciprocation therein along the barrel axis, a striker received within the barrel for reciprocation in response to the reciprocation of the piston, and an anvil at least partially received within the barrel and positioned between the striker and tool bit. The anvil communicates axial impacts to the tool bit in response to reciprocation of the striker.

Chisel hammer

A power tool including a housing, a trigger, a motor coupled to an output member, and a motor drive circuit coupled to the motor. The power tool further includes a motor controller coupled to the motor drive circuit. The motor control circuit is configured to detect a position change of the trigger, determine one or more parameters associated with the position change, and generate an output based on the one or more determined parameters and a variable trigger mapping function. The output is then output to the motor drive circuit.

Adaptive trigger mapping

A powered fastener driver includes a driver blade and a drive unit having an output shaft for providing torque to move the driver blade from the bottom-dead-center position toward the top-dead-center position. A rotary lifter is engageable with the driver blade and configured to receive torque from the output shaft of the drive unit in a first rotational direction for returning the driver blade from the bottom-dead-center position toward the top-dead-center position. A kickout arrangement is defined between the lifter and the output shaft and configured to permit limited movement of the lifter relative to the output shaft between a first position and a second position. The kickout arrangement having a curvilinear slot defined in the rotary lifter in which a portion of the output shaft is received. Movement of the rotary lifter from the first position toward the second position causes the slot to move relative to the output shaft, while the output shaft remains within the slot.

Lifter mechanism for a powered fastener driver

A powered fastener driver including a housing, an inner cylinder within the housing, and a piston movable within the inner cylinder from a TDC position to a BDC position. The piston has a diameter of less than 1.7 inches. A stroke length of the piston is between the TDC position and the BDC position measuring greater than 3 inches. A driver blade is attached to the piston for movement therewith along a driving axis. A lifter is operable to move the piston and driver blade from the BDC position toward the TDC position. A drive unit is operably coupled to the lifter to provide torque thereto, causing the lifter to rotate. A source of pressurized gas is in fluid communication with the inner cylinder. A pressure of the pressurized gas acting on the piston at the TDC position is greater than 180 psi.

Powered fastener driver

A trimmer head includes a housing rotatable about a rotational axis. The housing includes a main body defining a cavity, and a cap removably coupled to the main body. The trimmer head additionally includes a spool supported in the cavity and operable to support line to be dispensed, a retainer positioned between the housing and the spool. and a first ring protruding from a distal end of the housing.

String trimmer head

A wireless hoist system including a first hoist device having a first motor and a first wireless transceiver and a second hoist device having a second motor and a second wireless transceiver. The wireless hoist system includes a controller in wireless communication with the first wireless transceiver and the second wireless. The controller is configured to receive a user input and determine a first operation parameter and a second operation parameter based on the user input. The controller is also configured to provide, wirelessly, a first control signal indicative of the first operation parameter to the first hoist device and provide, wirelessly, a second control signal indicative of the second operation parameter to the second hoist device. The first hoist device operates based on the first control signal and the second hoist device operates based on the second control signal.

Wireless hoist system

A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a ready position and a driven position, a lifter to move the driver blade from the driven position to the ready position, and a transmission including an output shaft operatively coupled to the lifter to provide torque to the lifter. The fastener driver also includes an input to provide torque to the transmission and a clutch positioned downstream of the input and operably coupled to the output shaft to limit an amount of torque transferred to the output shaft and the lifter. In response to an application of a reaction torque to the output shaft above a predetermined threshold, torque from the input is diverted from the output shaft via the clutch.

Gas spring-powered fastener driver

A gas spring-powered fastener driver includes a cylinder, a storage chamber cylinder having pressurized air in communication with the cylinder, a moveable piston positioned within the cylinder, a driver blade extending from a first side of the piston and movable therewith between a top-dead-center position and a bottom-dead-center position, a one-way seal carried onboard the piston and disposed between the piston and the cylinder, the one-way seal being configured permit a bypass flow of pressurized air from the first side of the piston, past the one-way seal, and into a space within the cylinder adjacent an opposite, second side of the piston during movement of the piston and driver blade from the top-dead-center position to the bottom-dead-center position, thereby increasing a pressure of the pressurized air within the cylinder and storage chamber cylinder, and a pressure relief valve in fluid communication with the storage chamber cylinder.

Gas spring-powered fastener driver with pressure mechanism

A reciprocating saw including a motor defining a motor axis, the motor including a front end and a back end, the front end including a front face defining a first vertical plane, and the back end including a rear face defining a second vertical plane parallel to the first vertical plane. The reciprocating saw also includes a dual-eccentric scotch yoke mechanism coupled to the motor. The scotch yoke mechanism includes a spindle driven to reciprocate relative to the motor along a spindle axis parallel to the motor axis, the spindle including a rear end nearest to the motor. The scotch yoke mechanism also includes a counterweight driven to reciprocate relative to the motor. The spindle is arranged above the motor. As the spindle reciprocates forward and backward, the rear end extends into a space defined between the first and second vertical planes.

Reciprocating saw

A battery pack that is connectable to and supportable by a power tool (e.g., a hand-held power tool). The battery pack includes a top housing having a support member. The support member of the battery pack top housing is configured or operable to reinforce a support portion of the battery pack that is used to connect the battery pack to the power tool. By reinforcing the support portion of the battery pack, an interface between the battery pack and the power tool is able to withstand greater forces (e.g., from vibrations caused by the power tool).

Support member for battery pack top housing

A power tool including a housing that has a battery pack receiving portion configured to receive an interface of a battery pack, device contacts extending from the housing and configured to mechanically and electrically engage with the battery pack, and a latching mechanism supported by the housing and including an actuator and a latch member configured to selectively engage the interface of the battery pack. The actuator is pivotable to operatively pivot the latch member.

Locking mechanism for a battery pack on a portable electric device

A power tool includes a housing, a motor positioned substantially within the housing, a drive mechanism supported by the housing and coupled to the motor, a battery pack electrically coupled to the motor, and an isolation system. The isolation system includes an interface member positioned substantially within the housing. The interface member receives a portion of the battery pack to electrically couple the battery pack to the motor. The isolation system also includes a plurality of isolators coupled between the housing and the interface member to isolate the battery pack from the housing during operation of the power tool.

Power tool including a battery pack isolation system

A powered fastener driver includes a housing, a nosepiece coupled to the housing, a driver blade movable within the nosepiece between a ready position and a driven position, a canister magazine coupled to the nosepiece and including collated fasteners arranged in a coil, and a pusher mechanism coupled to the nosepiece for individually transferring collated fasteners from the canister magazine to a driver channel in the nosepiece, wherein the pusher mechanism includes: a linkage assembly having a support arm, a finger pivotably coupled to the support arm, a lever pivotably coupled to the support arm via and a fork pivotably coupled to the lever via a second fixed pivot, and a feeder arm engaged with the fork. The feeder arm pushes fasteners into the driver channel as the pusher mechanism is actuated by the impact of the driver blade during a retraction stroke of the driver blade.

Pusher mechanism for powered fastener driver

A power tool includes a housing, a motor positioned within the housing, an impulse assembly coupled to the motor to receive torque therefrom, the impulse assembly including a cylinder at least partially forming a chamber containing a hydraulic fluid, an anvil positioned at least partially within the chamber, and a hammer positioned at least partially within the chamber and engageable with the anvil for transferring rotational impacts to the anvil, the hammer including a through hole, and a valve configured to control flow of the hydraulic fluid through the through hole.

Power tool with impulse assembly including a valve

Growing community of inventors

Cedarburg, WI, United States of America

Troy Charles Thorson