Black Decker Inc.

Joerg Zellerhoff

Daniel Puzio

Robert S Gehret

Joao Norona

Stuart E Garber

Stephen P Osborne

Brian E Friedman

Michael Kenneth Forster

John Charles Vanko

Scott J Eshleman

Robert Alan Usselman

Tal Gottesman

Joseph Patrick Kelleher

John D Cox

Daniel L Krout

Eric E Hatfield

Robert G Kusmierski

Aris C Cleanthous

Michael C Doyle

Eva J Dixon

Amanda Miller

Corey G Robertson

Jeffrey D Delcamp

Anatoliy Nosov

Craig Alan Schell

Sankarshan N Murthy

A power tool includes a tool body including a motor having an output member that drives an accessory. A chuck is coupled for rotation with the output member relative to the tool body and configured to retain the accessory. The chuck has a chuck body that defines at least one light pipe formed therethrough. A light source disposed on a light ring coupled to the tool body and includes at least one light. Each at least one light source aligns with each of the at least one light pipe intermittently during rotation of the chuck.

Lighted power tool

A power tool includes a housing, an output shaft having a tool axis, and a motion sensor that senses motion of the tool housing. A control circuit receives an input signal from the motion sensor, to make a first determination, based on the input signal, whether the tool is being operated in a horizontal mode or a vertical mode. The control circuit makes a second determination, based on the input signal, whether the tool axis is substantially level when the tool is being operated in the horizontal mode or the tool axis is substantially plumb when the tool is being operated in the vertical mode. An indicator receives an output signal from the control circuit that causes the indicator to indicate whether the tool axis is level when being operated in the horizontal mode or plumb when being operated in the vertical mode.

Level, plumb, and perpendicularity indicator for power tool

A power tool having a light for illuminating an area proximate a movable end effector. The light may be mounted in such a way as to transmit light through a rotatable collar on the power tool, through or through a member of a housing of the power tool, or from the moving end effector. The light may be powered by a power source that is used for moving the end effector or from a generator that generates electrical power when the power tool is used.

Power tool with light for illuminating workpiece

A power tool includes a tool body having an output member that drives an accessory. An end effector is coupled for rotation with the output member. A light source is disposed on the end effector. A primary coil assembly is configured on the tool body and mounted concentric to the output member. The primary coil assembly includes a primary coil that is electrically connected to a power source of the power tool. A secondary coil assembly is configured on the end effector and mounted concentric to the output member. The secondary coil assembly includes a secondary coil that is electrically connected to the light source. Current flowing through the primary coil creates a magnetic field that causes current to flow through the secondary winding and power the light source.

Power tool with light for illuminating a workpiece

Power tool with a light for illuminating a workpiece

Growing community of inventors

Towson, MD, United States of America

Joerg Zellerhoff