Electric lamp and method of making

Details Electric lamp and method of making Electric lamp and method of making

1986-04-18

1987-10-27

Moore, David K.

Electric lamp and discharge devices

Electrode and shield structures

With lead wire or connector

313331, 313579, 313315, 174 506, 174 5064, 445 27, 29DIG23, H01J 550, H01J 6106, H01K 150

Patent

active

047032219

ABSTRACT:
An electric lamp including a glass envelope having at least one conductive foil hermetically sealed within the press-sealed end portion thereof, the foil being electrically connected at one end to a side rod support wire which projects within the envelope's bulb portion to form part of the lamp's filament structure. A sound electrical connection between the support wire and conductive foil is attained by providing the end portion of the support wire with a relatively flat configuration and knurling a surface of this flattened end. This knurled surface, being welded to the foil, provides such a connection without the use of flux or the like. A method of making this lamp is also disclosed.

REFERENCES:
patent: 3668456 (1972-06-01), Anderson
patent: 3868528 (1975-02-01), Lake et al.
patent: 3991337 (1976-11-01), Noteltiers
patent: 4110657 (1978-08-01), Sobieski
patent: 4370589 (1983-01-01), De Caro et al.

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