Degassing a CRT with modified RF heating of the mount assembly t

Details Degassing a CRT with modified RF heating of the mount assembly t Degassing a CRT with modified RF heating of the mount assembly t

1981-04-23

1983-10-18

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Including evacuating, degasifying or getter or fluent...

445 6, H01J 900, H01J 939

Patent

active

044103107

ABSTRACT:
While a CRT is being baked at temperatures up to about 450.degree. C. and exhausted of gases prior to sealing, the mount assembly is heated to higher temperatures with RF energy. In the novel method, a selected portion of the mount assembly is shielded from the RF energy in such manner that it is not heated above about 350.degree. C.

REFERENCES:
patent: 2532315 (1950-12-01), Johnson et al.
patent: 3115732 (1963-12-01), Stewart
patent: 3589791 (1971-06-01), Kanellopoulos
patent: 3873879 (1975-03-01), Hughes
patent: 3922049 (1975-11-01), Sawicki
patent: 4217521 (1980-08-01), Dietch et al.
patent: 4234814 (1980-11-01), Chen et al.
RCA Technical Notes, Jun. 1960 Issue, RCA Tn No. 385.
RCA Technical Note No. 1244, "Glow Discharge Processing to Eliminate Afterglow in Color Kinescopes," by Karl G. Hernqvist.

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