Filament shield for sealed headlamp and mounting method therefor

Details Filament shield for sealed headlamp and mounting method therefor Filament shield for sealed headlamp and mounting method therefor

1976-04-05

1977-11-15

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

313113, 313117, 313240, H01J 100, H01K 102

Patent

active

040587495

ABSTRACT:
The two legs of a headlamp filament are welded to a headlamp filament shield to form a subassembly intermediate in the manufacturing process. The rigid nature of the filament/shield subassembly thereupon allows handling during assembly without displacing the filament from its precise location with respect to the shield as required by modern automotive headlamps. The filament/shield subassembly is welded to support pins in its final location in the lamp. A portion of the filament shield, orginally providing an electrical short circuit across the filament is trimmed away after welding to the support pins to make the lamp operational.

REFERENCES:
patent: 3518478 (1970-06-01), Bardin
patent: 3646385 (1972-02-01), Wichert
patent: 3824421 (1974-07-01), Schuringa et al.
patent: 3962596 (1976-06-01), Draper
patent: 3979622 (1976-09-01), Rijnders et al.

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