Cathode ray tube device having reinforcing frame

Details Cathode ray tube device having reinforcing frame Cathode ray tube device having reinforcing frame

1991-12-31

1994-04-19

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Envelope

220 21A, 348822, H01J 2986, H01J 2987

Patent

active

053048903

ABSTRACT:
A cathode ray tube has a metal funnel welded to a metal skirt. The skirt is reinforced to resist tensile stress. Reinforcement is accomplished by thickening the skirt, or corner portions thereof; by welding one or more reinforcing members to the inside or outside of the skirt; by bending the edges of the skirt and funnel and welding the bent parts together; by welding reinforcing plates to corners of the skirt and winding a tension band around the skirt; or by providing a rigid frame with compression members to press inward on the skirt.

REFERENCES:
patent: 2132783 (1938-10-01), Goldmark
patent: 2222197 (1940-11-01), Engels
patent: 2635205 (1953-04-01), Olson
patent: 2866187 (1958-12-01), Fisch
patent: 3248480 (1966-04-01), Browning et al.
patent: 4016364 (1977-04-01), Rogers
patent: 4054913 (1977-10-01), Lerner
patent: 4432464 (1984-02-01), Seats et al.
patent: 4522309 (1985-06-01), Overall et al.
patent: 4720657 (1988-01-01), Tischer
patent: 4990825 (1991-02-01), Tsukui et al.

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