Implosion resistant cathode ray tube

Details Implosion resistant cathode ray tube Implosion resistant cathode ray tube

1978-03-27

1979-09-25

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

220 21A, H04N 565

Patent

active

041692748

ABSTRACT:
A cathode ray tube envelope resistant to implosion includes a funnel member having a flared portion sealed to a skirt portion joined to a viewing portion of a face plate member having a mould line rearward of the skirt and viewing portion jointure. A pair of "U" shaped flat rimbands having a re-enforcing ridge encircle the skirt portion with a forward edge intermediate the mould line and jointure of the skirt and window portions. A tension strap is applied intermediate the forward edge and re-enforcing ridge of the rimbands.
The implosion-resistant envelope is fabricated by sealing the flared portion of the funnel member to the skirt portion of the face plate member encircling the skirt portion with the "U" shaped rimbands with the forward edge of the rimbands intermediate the jointure of the window and skirt portions and the mould line and compressing the rimbands with a strap member disposed intermediate the forward edge and re-enforcing ridge of the rimbands.

REFERENCES:
patent: 3162933 (1964-12-01), Trax
patent: 3220593 (1965-11-01), Powell
patent: 3350154 (1967-10-01), Minneman
patent: 3508310 (1970-04-01), Eisses
patent: 3569990 (1971-03-01), Inglis
patent: 3845530 (1974-11-01), Platt

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