Implosion-resistant cathode ray tube structure and fabrication p

Details Implosion-resistant cathode ray tube structure and fabrication p Implosion-resistant cathode ray tube structure and fabrication p

1978-09-12

1980-09-09

Griffin, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

220 21A, H04N 565

Patent

active

042220750

ABSTRACT:
An implosion-resistant cathode ray tube has an evacuated envelope with a face panel having a substantially rectangular-shaped viewing portion extending to an upturned flanged portion with corners having a given radius of curvature and a metal band encircling and exerting a compressive force on the upturned flanged portion and an "L"-shaped bracket member with a base portion connected to an upstanding attachment portion has the base portion positioned intermediate the metal band and the corner of the envelope and is of a width to provide contact of the encircling metal band with the envelope corner on the given radius of curvature. The implosion-resistant cathode ray tube is fabricated by a process wherein an envelope having a rectangular-shaped viewing portion with corners of a given radius of curvature is selected, encircled by a metal band, and an "L"-shaped bracket member having a base portion of a width to provide contact of the metal band on the given radius of curvature of the envelope corner is disposed intermediate the metal band and the envelope corner.

REFERENCES:
patent: 3317172 (1967-05-01), Balint
patent: 4080631 (1978-03-01), Puhak

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