Method of manufacturing a cathode-ray tube

Details Method of manufacturing a cathode-ray tube Method of manufacturing a cathode-ray tube

1976-11-10

1978-04-18

Kendall, Ralph S.

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

427106, 427122, 427372B, 106 75, 106 84, 252502, 252510, H01J 2988

Patent

active

040852350

ABSTRACT:
A suspension comprising electrically conductive material, a binder, and from 3% to 30% by weight of sodium carbonate or potassium carbonate is applied to a wall portion of a cathode-ray tube and then dried and fired. This provides a layer in which hardly any bubbles have formed during the firing of the cathode-ray tube and which during firing produces no gases which detrimentally influence the emission of the cathode.

REFERENCES:
patent: 2462763 (1949-02-01), Nightingall
patent: 3518116 (1970-06-01), Stock
patent: 3947608 (1976-03-01), Duinker et al.

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