Filament connector means for electric incandescent lamp

Details Filament connector means for electric incandescent lamp Filament connector means for electric incandescent lamp

1980-09-02

1983-01-25

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Incandescent lamps

313332, 313331, 313309, H01K 142, H01K 908

Patent

active

043705898

ABSTRACT:
The inner ends of the lead-in wires of an electric incandescent lamp are serrated and welded to uncoiled leg portions of the tungsten filament so that the members are fused to one another at a plurality of spaced points or locations and provide strong reliable electrical junctures. The filament leg portions are in bridging relationship with the serrations on the ends of the lead wires and form high-resistance areas of contact during the welding operation that permits high-quality welds to be made efficiently without the use of a flux material, even in halogen-cycle type lamps that require the welding of molybdenum lead wires to a tungsten filament.

REFERENCES:
patent: 2145186 (1939-01-01), Meeker et al.
patent: 2191189 (1940-02-01), Wade
patent: 2249672 (1941-07-01), Spanner
patent: 2345641 (1944-04-01), Van Sant
patent: 2632126 (1953-03-01), Curtis
patent: 3361924 (1968-01-01), Agdur et al.

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