Incandescent lamp seal means

Details Incandescent lamp seal means Incandescent lamp seal means

1979-09-12

1980-12-09

Thomas, Earl C.

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

313222, 313318, 106 52, C03C 304, H01J 548, H01K 138, H01K 142

Patent

active

042387051

ABSTRACT:
Hermetic seal construction for an incandescent lamp is described wherein a composite inlead structure is employed. A pair of inleads connected to the resistive incandescent filament in said lamp are joined at the opposite ends to larger diameter inlead wires in the hermetic seal region. The glass envelope of said lamp utilizes glasses having the following compositional limits in percent by weight:

REFERENCES:
patent: 3582703 (1971-06-01), Takahashi et al.
patent: 3912960 (1975-10-01), Danko
patent: 3978362 (1976-08-01), Dumbaugh, Jr. et al.
patent: 4012263 (1977-03-01), Shell
patent: 4060423 (1977-11-01), Thomas
patent: 4145631 (1979-03-01), Saito
patent: 4149103 (1979-04-01), Gates et al.

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