Electron tube having glass-to-metal-to-glass seal

Details Electron tube having glass-to-metal-to-glass seal Electron tube having glass-to-metal-to-glass seal

1981-02-11

1986-08-26

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Envelope

313318, 220 21A, H01J 522, H01J 2990

Patent

active

046085165

ABSTRACT:
An electron tube is disclosed in which an envelope glass bulb and a glass stem having an electron gun assembly mounted thereon and accommodated within the bulb are sealed to each other. The sealed interface portion between the bulb and the stem incorporates concentrically with the electron gun assembly a metallic ring member made of an alloy or metal material having a good bonding ability to the glass materials of the bulb and the stem. The sealing is effected by a high frequency heating of the metallic ring member. An ohmic heating may be additionally used.

REFERENCES:
patent: Re25791 (1965-06-01), Claypoole
patent: 2568460 (1951-09-01), Nolte
patent: 3061664 (1962-10-01), Kegg
IBM Technical Disclosure Bulletin, vol. 15, No. 8, Jan. 1973, "Gas Panel Sealant", Beckerman et al.

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