Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1988-11-10
1990-01-02
Wieder, Kenneth
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313402, 445 30, H01J 2907
Patent
active
048915467
ABSTRACT:
A front assembly is disclosed for a tension mask color cathode ray tube. The assembly comprises a faceplate having a tensed foil shadow mask supported by mask support means, and means for shielding the faceplate from a high-energy beam used to trim waste material from the mask following its attachment to the mask support means.
REFERENCES:
patent: 4686416 (1987-08-01), Dougherty et al.
patent: 4695761 (1987-09-01), Fendley
patent: 4804881 (1989-02-01), Strauss
Dougherty Lawrence W.
Fendley James R.
Prazak Charles J.
Strauss Paul
Wieder Kenneth
Zenith Electronics Corporation
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