Cathode cup having support flanges sloped symmetrically in oppos

Details Cathode cup having support flanges sloped symmetrically in oppos Cathode cup having support flanges sloped symmetrically in oppos

1979-02-16

1981-05-19

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313451, H01J 2904, H01J 2948

Patent

active

042687764

ABSTRACT:
An electron discharge device including an evacuated envelope having therein an indirectly heated cathode comprised of a metallic cathode cup having a cylindrical wall provided with an outwardly extended pair of opposing axially sloped flanges which contactingly engage respective opposing bevelled surfaces of a dielectric support ring encircling the wall and having an inner periphery radially spaced therefrom.

REFERENCES:
patent: 3087082 (1963-04-01), Osborne et al.
patent: 3249790 (1966-05-01), Schaefer
patent: 3333138 (1967-07-01), Szegho
patent: 4106840 (1978-08-01), Tyson

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