Cathode ray tube and a ventilator used in its baking process

Details Cathode ray tube and a ventilator used in its baking process Cathode ray tube and a ventilator used in its baking process

1978-12-05

1980-08-12

Lazarus, Richard B.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 64, H01J 920, H01J 938

Patent

active

042170150

ABSTRACT:
Method of manufacturing a cathode tube and for a ventilator used in its baking process which eliminates the need for a pre-baking process, and polyvinyl-alcohol (PVA) in the phosphor coating and an acrylic resin layer are completely baked and decomposed during the process of the frit-sealing furnace. A ventilator is used in its baking process. The panel portion and a funnel portion are placed in a frit-sealing furnace with a mutually coupled condition so that both portions are frit-sealed and the phosphor is baked. A bulb formed of the panel and funnel portions is provided with a ventilator means to carry out the baking operation.

REFERENCES:
patent: 2570165 (1951-10-01), Shekels
patent: 2655408 (1953-10-01), Williams
patent: 2694851 (1954-11-01), Marra
patent: 2937107 (1960-05-01), Phillips
patent: 3200479 (1965-08-01), Peterson
patent: 3819409 (1974-06-01), Phillips

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