CRT funnel with compliant corners and CRT envelope incorporating

Details CRT funnel with compliant corners and CRT envelope incorporating CRT funnel with compliant corners and CRT envelope incorporating

1992-05-18

2000-01-25

O'Shea, Sandra

Electric lamp and discharge devices

Cathode ray tube

Envelope

H01J 2901

Patent

active

060182172

ABSTRACT:
Accelerated thermal upshock rates in the exhaust cycle of a CRT envelope are attained for CRTs, and especially a tension mask CRT having a shadow mask-supporting rail frame affixed to a flat, skirtless front panel. The corner walls of the CRT funnel are made with thinner walls to provide an increased compliance of the normally very rigid corners of the funnel-to-panel seal area. Panel-fracturing stresses generated in the funnel-to-panel seal area corners during upshock are thus alleviated allowing for faster CRT throughput during manufacture.

REFERENCES:
patent: 3161314 (1964-12-01), Pfleeger et al.
patent: 4686416 (1987-08-01), Dougherty et al.

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