Disston, Inc.

Richard Nelson Paul

James E Edgell

Lynn D Lineback

A cordless electric device has an external side pocket for receiving a battery pack power source. The battery pack includes a pair of standard AC prongs projecting from one flat sidewall. The prongs may be received by a set of openings in the device pocket for powering the tool or may be inserted into an ordinary AC household receptacle for charging the batteries. A spring-loaded switch located on the same pack sidewall has a first normal position for connecting the batteries to a rectifier for charging and a second actuated position for connecting the batteries directly to the prongs for powering the device. The device is provided with a manually operable mechanism for contacting the spring-loaded switch in the pack and thereby switching the pack from a charge to a discharge mode. In a specific embodiment, the actuating mechanism comprises a trigger mounted on a pistol-type soldering gun. The trigger has a movable post member made integral with the trigger for contacting the battery pack switch when the trigger is depressed. The prong contacts in the device may, therefore, be directly connected to the device load unit so that the on-off switching function is performed solely by the trigger mechanism without the need for a separate electrical switch on the device.

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Danville, VA, United States of America

Richard Nelson Paul