Black Decker Inc.

Timothy W French, Jr

Christopher Pedicini

Robert S Gehret

Terry L Turner

Jason Carl McRoberts

Andrew Walker

Scott M Rudolph

Jennifer A Resh

Graham Bone

Tyler Knight

David Proudlock

Steven Swaddle

Wei Chen

Jonathan Priestley

Shaun M Lovelass

Jin Fujun

Jarrett A Dunston

Michael F Cannaliato

Ross Arthur Billings

Gale Anthony Heslop

Michael R Marjomaa

Dustin Jefferies

Marcus E E Rydin

Evan M Cain

A power tool is provided including a housing having an elongated body having an outer diameter that is at most approximately 34 mm, and an outer-rotor electric motor disposed within the elongated body of the housing. The electric motor is configured to provide a maximum power output of approximately greater than or equal to 470 watts and a maximum output speed of greater than 25,000 rotations-per-minutes (RPM) when powered by the battery pack having a maximum rated voltage of 20V and rated capacity of 2 Amp-hours.

Power tool having an outer-rotor brushless motor

A hand-held tool that includes a housing. The housing includes a handle. A tool also includes a motor assembly, a battery assembly and a circuit board. The motor assembly includes a motor, the motor including a rotatable motor output shaft, a motor positive terminal and a motor negative terminal. The motor assembly also includes a first rigid conductive electrical connector having a first end fixed to the motor positive terminal and a second end fixed to the circuit board. The battery assembly includes a battery cell with a battery cell positive terminal and a battery cell negative terminal. The battery assembly further includes a second rigid conductive electrical connector having a first end fixed to the battery cell positive terminal and a second end fixed to the circuit board.

Power and home tools

A distributed winding arrangement for an electric motor is provided that reduces brush arcing while reducing the size of the commutator. The electric motor is comprised generally of an armature having a plurality of spaced apart posts defining a plurality of spaced apart winding slots; a stator disposed coaxially with the armature; and a commutator having a plurality of commutator bars, where the number of commutator bars is an integer greater than the number of winding slots but less than twice the number of winding slots provided by the armature.

Distributed winding arrangement for an electric motor

A power tool including a housing with an electric motor in the housing. The motor has a stator and an armature, the stator having field coils and the armature having an armature shaft on which a commutator is affixed. A pair of brush boxes are located in the housing on opposite sides of the commutator. An orbit mechanism coupled to the armature shaft and a platen is coupled to the orbit mechanism. The field coils comprise a first field coil facing a front of the sander and a second field coil facing a rear of the sander and the brush boxes are rotationally offset from the field coils with respect to a vertical axis of the sander.

Low height quarter sheet sander

A reduced height quarter sheet sander has a housing having first and second halves mated together. An upper portion of the housing provides a handle. A pair of brush boxes is disposed in the housing on opposite sides of a commutator of an electric motor disposed in the housing. In an aspect, a switch disposed in the handle of the housing and a terminal block (at which a cordset that enters the housing terminates) disposed in the handle of the housing have generally the same horizontal elevation as the brush boxes (when the sander is lying upright). In an aspect, the stator is disposed in the housing so that the field coils extend across the housing from one half to the other half and outside the lower screw bosses.

A reduced height quarter sheet sander has a housing having first and second halves mated together. An upper portion of the housing provides a handle. An electric motor is disposed in the housing. The electric motor has a stator and an armature. The stator has field coils and the armature has an armature shaft on which a commutator is affixed. A pair of brush boxes is disposed in the housing on opposite sides of the commutator. The brush boxes lie in a horizontal elevation when the sander is upright. An orbit mechanism is coupled to the armature shaft and a platen is coupled to the orbit mechanism. In an aspect, a switch disposed in the handle of the housing and a terminal block (at which a cordset that enters the housing terminates) disposed in the handle of the housing have generally the same horizontal elevation as the brush boxes (when the sander is upright).

A fastening tool that drives a fastener into a work-piece. The tool includes a motor that is connected to a transmission. The transmission includes a flywheel. The tool also includes a driver mechanism that is adapted to drive the fastener into the work-piece. The flywheel is connected to the driver mechanism when the flywheel is in a flywheel firing position. The tool includes a control module that detects a flywheel position and compares the flywheel position to the flywheel firing position. The control module also adjusts the flywheel position based on the comparison. The control module ensures that the transmission has enough rotations to ensure that enough momentum can be generated to drive the fastener into the work-piece.

Electronic control of a cordless fastening tool

Growing community of inventors

Hampstead, MD, United States of America

Timothy W French, Jr