Color television picture tubes with improved implosion protectio

Details Color television picture tubes with improved implosion protectio Color television picture tubes with improved implosion protectio

1975-10-20

1977-05-03

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358246, 358247, 220 21A, 220 23A, 313477R, H01J 3100

Patent

active

040218503

ABSTRACT:
This disclosure depicts a novel system for implosion protecting a color television picture tube having a faceplate with a rearwardly extending side surface and a mating funnel. The system is illustrated as comprising, in part, a high tensile strength frame which surrounds and overlies at least a portion of the side surface of the faceplate and which is cemented to the faceplate. The system further comprises a crack retarder which is located about the circumference of the tube, but which is spaced axially rearwardly from the frame. The system assists in retaining in position the shards of a shattered faceplate and also assists in retarding the propagation of cracks in the tube, thereby providing for a relatively gradual buildup of pressure in the tube.

REFERENCES:
patent: 2222197 (1940-11-01), Engels
patent: 2697311 (1954-12-01), Polan
patent: 3220592 (1965-11-01), Powell et al.

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