Cathode holder for an electron beam generator

Details Cathode holder for an electron beam generator Cathode holder for an electron beam generator

1990-09-10

1992-05-26

Albritton, C. L.

Electric heating

Metal heating

By arc

21912134, 373 13, B23K 1500

Patent

active

051170850

ABSTRACT:
The cathode holder 4 has two terminals 8, 9 which are rigidly connected to one another and together form a flange 20 which by means of a pressure bearing with spheres 27, 28 made of a ceramic material is supported in a carrier flange 3 connected to the control electrode 5. The spheres 27, 28 rest in rolling paths aligned in radial direction to the optical axis 14 and provide a centering of the cathode 7 with respect to the control electrode 6 which is independent of expansions.

REFERENCES:
patent: 3187216 (1965-06-01), Sciaky
patent: 3274425 (1966-09-01), Sciaky
patent: 4998004 (1991-03-01), Lawrence et al.

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