Filament lead-in support for tungsten halogen capsule for headli

Details Filament lead-in support for tungsten halogen capsule for headli Filament lead-in support for tungsten halogen capsule for headli

1978-03-13

1979-08-28

Segal, Robert

Electric lamp and discharge devices

Incandescent lamps

Plural filaments or glowers

313115, 313318, H01K 142, H01K 908

Patent

active

041662326

ABSTRACT:
In the manufacture of a capsule for a sealed beam lamp or vehicle headlight, two coiled filaments on lead-in wires are supported in a holder with sufficient rigidity to accurately maintain a predetermined spacing between the filaments during a subsequent press sealing operation. The filaments are then inserted into an open-ended glass tube and the open end is press sealed onto the filament lead-in wires at the same time that wire supports are embedded in the press seal. The wire supports are then connected to mounting rods in the finished capsule.

REFERENCES:
patent: 3801178 (1974-04-01), Berge
patent: 3829729 (1974-08-01), Westlund et al.
patent: 4088918 (1978-05-01), Gates et al.

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