Thermionic cathode supporting device

Details Thermionic cathode supporting device Thermionic cathode supporting device

1979-12-20

1982-01-19

Dixon, Harold A.

Electric lamp and discharge devices

Electrode and shield structures

Point source cathodes

313270, 313337, 403146, H01J 116

Patent

active

043119417

ABSTRACT:
A thermionic cathode supporting device which comprises an electroconductive member adapted to support a thermionic cathode tip and a tip supporting heaters which hold said tip, a pressing means for resiliently pressing the above mentioned members from the outside thereof. The device is so arranged that the pressing force is easily adjustable and can be miniaturized, and applicable for the various different types of cathode devices of an electron gun or the like.

REFERENCES:
patent: 1414737 (1922-05-01), Gulick
patent: 2917333 (1959-12-01), Liesen
patent: 3668457 (1972-06-01), Gardner et al.
patent: 3889829 (1975-06-01), Dutton
patent: 4068145 (1978-01-01), Nakagawa et al.
patent: 4143292 (1979-03-01), Hosoki et al.

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