The Black and Decker Manufacturing Company

Black Decker Inc.

Stanley Alan Markle

Alvydas Petras Karasa

Lee Webber Ramstrom

Keith Moore

Roberta Scheiner Hall

Donald William Zurwelle

Inflator

A combined on/off and reversing switch, particularly for an electric screwdriver having a reversible motor, has a switch plate which can be rotatably mounted on an end of the motor. Terminals of the motor extend through the switch plate and are selectively contacted by ends of two resiliently flexible contact strips carried by the switch plate. An actuating member is moved along a selected path to rotate the switch plate to select 'forward' and 'reverse', and then depressed inwardly to flex an end of the appropriate contact strip to complete energization of the motor. The contact strips resiliently bias the actuating member outwardly to switch the motor 'off' when the actuating member is released. Switching the motor 'on' from a neutral 'off' position of the switch involves a two part movement of the actuating member. The switch is of simple and compact construction.

Combined on/off and reversing switch and electric device therewith

An improved chuck key and spring pocket for holding the key. The key comprises a sliding cross bar having paddle ends, and the spring pocket cooperates with this cross bar. The pocket opening accepts the key in one orientation only, and then the paddles are used to cam the key tightly into the pocket.

Chuck key holder

Cordless electric tool

Securing means particularly for slide-in type battery pack to be used in cordless electric power tools. An L-shaped latch is pivoted on the tool, and its short leg cooperates with a release mechanism at the remote end of the battery pack. A release member, spring loaded on the battery pack, urges the latch away from the pack during disengagement. A thermostated subassembly of the cells within the battery pack is also disclosed.

Battery pack and latch

Growing community of inventors

Lutherville, MD, United States of America

Stanley Alan Markle