Cathode-ray tube having implosion protection means with openings

Details Cathode-ray tube having implosion protection means with openings Cathode-ray tube having implosion protection means with openings

1993-05-03

1994-09-13

Coles, Sr., Edward L.

Television

Video display

Cathode-ray tube

315 8, 335210, 348823, 348825, H04N 565

Patent

active

053473671

ABSTRACT:
A cathode-ray tube comprises an evacuated envelope having a faceplate panel with a sidewall joined to a funnel. A shrinkfit implosion protection band surrounds at least a portion of the sidewall and is in contact therewith. A plurality of openings are formed in the implosion protection band to support a degaussing coil. The implosion protection band is improved over prior bands by providing a cavity in the band around at least three sides of each of the openings. The cavity is directed toward the sidewall of the panel so that the openings in the band are spaced therefrom.

REFERENCES:
patent: 4940920 (1990-07-01), Giannantonio
patent: 5036577 (1991-08-01), Swank
patent: 5057929 (1991-10-01), Hermann
patent: 5181123 (1993-01-01), Swank

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