Baseless incandescent lamp

Details Baseless incandescent lamp Baseless incandescent lamp

1984-07-30

1986-08-05

Dixon, Harold

Electric lamp and discharge devices

Incandescent lamps

313318, H01J 548

Patent

active

046045538

ABSTRACT:
A baseless incandescent lamp having various embodiments all with a single glass unit forming an outer envelope, complementary threads for mating with an electrical socket and an insulative stem is disclosed. The baseless incandescent lamp further comprises a filament rigidly disposed by the insulated stem within the outer envelope and connected between a pair of inner leads. The inner leads are connected to respective outer leads wherein one of the outer leads is connected to at least a portion of the complementary threads by a layer of electrically conductive metal. In one embodiment the other outer lead extends through a central opening of a plastic stem occupying a hollow portion of the outer envelope and is externally and electrically connected to the plastic stem by a layer of the electrically conductive metal.

REFERENCES:
patent: 620640 (1899-03-01), Cazin
patent: 621292 (1899-03-01), Cazin
patent: 1940509 (1933-12-01), Pupala
patent: 3548243 (1970-12-01), Magherini

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