Electrically resistive arc suppressor shadowing getter flash

Details Electrically resistive arc suppressor shadowing getter flash Electrically resistive arc suppressor shadowing getter flash

1976-07-26

1980-09-02

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313481, H01J 2994, H01J 2996

Patent

active

042208939

ABSTRACT:
This disclosure depicts an arc-suppression means for use in cathode ray tubes having an electron gun and ancillary electrical circuits susceptible to damaging electrical arcing currents, and wherein getter means are used to capture residual gases in the evacuated envelope of the tube. The arc-suppression means is electrically resistive and is connected in an electrical path between the gun and a high voltage source, and its surface is physically exposed to a deposit of getter material when the getter is flashed. The arc-suppression means includes shadowing means for shadowing at least portions of the exposed surface from a deposit of the getter material to prevent the creation of an electrically conductive shorting path capable of permitting an arc to bypass or substantially nullify the arc-suppression means.

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patent: 3143681 (1964-08-01), Schlesinger
patent: 3508105 (1970-04-01), Pappadis
patent: 3564327 (1971-02-01), Johnson
patent: 3802757 (1974-04-01), Benda et al.
patent: 3848154 (1974-11-01), Bowes et al.
patent: 3882348 (1975-05-01), Paridaens
patent: 3906281 (1975-09-01), Nakamura et al.
patent: 3906282 (1975-09-01), Krackhardt et al.
patent: 3909655 (1975-09-01), Grimmett et al.
patent: 3939376 (1976-02-01), Reash
patent: 3961221 (1976-06-01), Benda et al.

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