Electrical current inlet particularly for discharge tubes of hig

Details Electrical current inlet particularly for discharge tubes of hig Electrical current inlet particularly for discharge tubes of hig

1983-02-22

1985-07-23

Chatmon, Saxfield

Electric lamp and discharge devices

Electrode and shield structures

With lead wire or connector

313623, 313333, 174 5052, 174 5064, H01J 550

Patent

active

045310742

ABSTRACT:
Electrical current supply terminal, especially for discharge tubes of light sources having a high pressure gas discharge.
The invention is concerned with an electrical feed through, especially for discharge tubes of light sources having high pressure gas discharge, which current supply terminal is passed through a ceramic material, preferably from aluminum oxide and with a binding material is hermetically binded thereto, the heat expansion coefficient of which is appropriately selected and which is preferably vitreous enamel.
In order to eliminate the difficulties resulting from the different heat expansion coefficient of ceramics, binding material and the metal material, the feed through is formed from a bundle of metallic threads.
The bundle comprises preferably strands or braids and as material preferably molybdenum or tungsten is used.

REFERENCES:
patent: 1608799 (1926-11-01), Marschner
patent: 1834132 (1931-12-01), Miller
patent: 4376905 (1983-03-01), Kerekes

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