Universal burning ceramic lamp

Details Universal burning ceramic lamp Universal burning ceramic lamp

1980-03-31

1982-08-03

Gensler, Paul L.

Electric lamp and discharge devices

Liquid electrode discharge devices

Auxiliary starting or holding electrode

313225, 313229, H01J 6124

Patent

active

043429386

ABSTRACT:
A high pressure alkali metal vapor lamp envelope of alumina ceramic has an externally projecting metal tube serving as an inlead and as a reservoir for excess sodium-mercury amalgam. The ability of the lamp to withstand heavy vibration without the occurrence of voltage rise and drop-out caused by expulsion of amalgam droplets from the reservoir is enhanced by flattening the end portion of the metal tube to a least dimension adequate to increase the capillary attraction to better than twice the force of gravity.

REFERENCES:
patent: 3825788 (1974-07-01), Pfaue et al.
patent: 3892993 (1975-07-01), Timmermans
patent: 4035682 (1977-07-01), Bubar
patent: 4052636 (1977-10-01), Strok
patent: 4065691 (1977-12-01), McVey

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