Getter comprising U-shaped channel ring having two ring holders

Details Getter comprising U-shaped channel ring having two ring holders Getter comprising U-shaped channel ring having two ring holders

1977-03-04

1979-01-09

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Envelope

313174, H01J 2984, H01J 3100

Patent

active

041340418

ABSTRACT:
A color television picture tube comprising a glass cone portion, a glass window portion and a metal screening cone. The metal screening cone is located within the volume defined by the glass cone portion and the glass window portion. At least a major portion of the metal screening cone is distanced away from the glass cone portion. An evaporable getter device is placed between the metal screening cone and the glass cone portion. Getter material vapors from the getter device evaporate in a direction substantially parallel to the surfaces of the glass window portion, the glass cone portion and the metal screening cone.

REFERENCES:
patent: 3719433 (1973-03-01), Rabusin
patent: 3816788 (1974-06-01), Reash

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