Electric lamp and discharge devices – Electrode and shield structures – With lead wire or connector
Patent
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
Nagy Janos
Oldal Endre
Chatmon Saxfield
Katona Gabriel P.
Tungsram Rt.
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