Black Decker Inc.

Jeffery D Delcamp

Stephen P Osborne

Michael Kenneth Forster

Paul S White

Daniel L Krout

Brian E Friedman

Jason K Leh

Eric E Hatfield

Robert G Kusmierski

Brian C Sterling

Eva J Dixon

Amanda Miller

Corey G Robertson

A power tool including a motor, light unit, and switch unit for selectively connecting the motor and light unit to a power source. A control module includes a controller coupled to a first electronic switch to control power delivery to the motor based on a position of the switch unit, and to a second electronic switch to control power delivery to the light source based on a position of the switch unit. A timer is configured to keep the light unit illuminated for a predetermined amount of time after the switch unit has been activated or deactivated. The control module also includes a boot circuit with a semiconductor switch that continues to deliver power to the controller and to the light unit when the switch unit is deactivated subsequent to being activated, to enable the light unit to remain illuminated after the switch unit has been deactivated.

Power tool with light unit

A power tool includes a housing having a large diameter rear portion and a narrow diameter nosepiece. An end effector is rotatably coupled to the housing. A holder with a substantially annular holder body is received over the nosepiece and non-rotatably coupled to the housing. A substantially annular cover having at least one transparent surface, and an internal annular groove, is received at least partially inside the holder body, and non-rotatably and axially fixed with respect to the holder. A substantially annular printed circuit board is received at least partially inside the annular groove in the cover, and non-rotatably and axially fixed with respect to the cover. A plurality of lighting elements is operatively connected to the printed circuit board and radially disposed about the printed circuit board. The lighting elements are aligned with the at least one transparent surface so as to illuminate a workpiece.

Power tool with light emitting assembly

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Baltimore, MD, United States of America

Jeffery D Delcamp