Adapter bulb for providing external electrical connection between powered vehicles and trailers

Claim 1

A new and improved adapter bulb assembly for providing an external electrical connection between a powered vehicle and a trailer towed thereby, said assembly comprising: bulb means; first connector means removably positionable within a tail-light receiving socket associated with said vehicle; first electrical lead means of finite length including first and second ends in electrical communication with said first connector means at said first ends and extending outwardly therefrom; second connector means attached to said first electrical lead means at said second ends and being in electrical communication therewith; second electrical lead means of finite length including first and second ends attached to and being in electrical communication with filament means forming a part of said bulb means at said first ends; said second electrical lead means extending outwardly through an aperture formed through a metallic base portion of said bulb means said bulb means further including a rubber grommet positioned in said aperture, said second electrical lead means extending through said rubber grommet, and, third connector means attached to said second ends of said second electrical lead means and being in electrical communication therewith, and wherein said second and third connector means comprise separable connectors which may be selectively joined together to establish electrical communication between said first and second electrical lead means, and further including fourth connector means attachable to said trailer, said bulb means being positionable in said fourth connector means, and wherein said fourth connector means comprises a tail-light receiving socket attached to said trailer.