Method and apparatus for manufacturing cathode-ray tubes

Details Method and apparatus for manufacturing cathode-ray tubes Method and apparatus for manufacturing cathode-ray tubes

1990-04-16

1990-12-25

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

Including evacuating, degasifying or getter or fluent...

445 45, 445 25, H01J 938

Patent

active

049799193

ABSTRACT:
This invention relates to a method of and an apparatus for baking the silicate films, which are formed on the front glass panels of cathode-ray tubes by a spraying or coating operation, so as to fix the films stably to the front glass panels. The front glass panels only, which are positioned in opposition to infrared ray radiation panels provided in the upper portion of a heating furnace body, are heated with the radiant heat from the infrared ray radiation panels. The radiant heat-screening isolation plates are provided between the front glass panels and funnels, and at least a part, which is below these isolation plates, of the furnace body is opened or cooled.

REFERENCES:
patent: 2824364 (1958-02-01), Bovenberk
patent: 2856174 (1958-10-01), Daley et al.
patent: 3732061 (1973-05-01), Hackley
patent: 3894858 (1975-07-01), Rogers
patent: 3912482 (1975-10-01), La Grouw et al.
patent: 4204721 (1980-05-01), Hubert et al.
patent: 4498884 (1985-02-01), Stover et al.

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