Orientation independent ignitron

Details Orientation independent ignitron Orientation independent ignitron

1979-06-12

1981-04-28

Demeo, Palmer C.

Electric lamp and discharge devices

With temperature modifier

For liquid electrode

313 34, 313171, H01J 724, H01J 1306, H01J 1332

Patent

active

042648394

ABSTRACT:
Orientation independent ignitron 10 has a cooled cathode 28 which carries thin mercury film 58 which is held in place by surface tension forces so that it is independent of orientation. Ignitor 48 starts conduction which continues until mercury exhaustion or shut off by an external circuit. During nonconductive portions of the duty cycle, the mercury recondenses on the cooled cathode 30.

REFERENCES:
patent: 2740911 (1956-04-01), Doolittle
patent: 2821511 (1958-01-01), Lewin
patent: 3119943 (1964-01-01), Holliday et al.
patent: 3659132 (1972-04-01), Eckhardt
patent: 4060748 (1977-11-01), Bayless

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