Vehicle light bulb with extending electrical wires

Details Vehicle light bulb with extending electrical wires Vehicle light bulb with extending electrical wires

1977-12-30

1979-04-24

Smith, Alfred E.

Electric lamp and discharge devices

With envelope

Having base and connector

362226, H01J 554

Patent

active

041514394

ABSTRACT:
To connect the respective rear light circuits of a towing vehicle and a trailer, the conventional rear light bulbs of a towing vehicle are replaced with otherwise conventional rear light bulbs, each modified by having extending electrical wires passing from its base contacts upwardly in its conventional round base, while at the same time passing through a depression groove of its otherwise conventional glass envelope, and thereafter freely extending a selected distance for attachment to the rear light circuits of a trailer. These otherwise conventional rear light bulbs with their extending electrical wires are made by a method centering on the selective heating of a portion of the glass of an initially conventional glass envelope to create on its exterior the weathertight depression groove extending for a length slightly longer than the depth of its round base.

REFERENCES:
patent: 3137448 (1964-06-01), Holzhause
patent: 3335389 (1967-08-01), Reichardt
patent: 3344265 (1967-09-01), Dillabough, Jr.
patent: 3400293 (1968-09-01), Reichardt
patent: 3458849 (1969-07-01), Marks et al.

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