Implosion protection for TV tubes

Details Implosion protection for TV tubes Implosion protection for TV tubes

1979-04-13

1981-01-13

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

220 21A, H01J 2987

Patent

active

042452554

ABSTRACT:
There has been provided a television tube having a funnel, panel, and neck portion fused together in a conventional manner. A circumferential implosion protection controlled surface discontinuity is formed in a rearward portion of the funnel for establishing a stress concentration location near a point of maximum stress therefor, such that in the event of a destructive impact to the panel, the tube will crack along the controlled surface discontinuity and reduce the implosion potential of the tube.

REFERENCES:
patent: 2123957 (1934-06-01), Orth
patent: 2236708 (1939-05-01), Grimditch
patent: 2799123 (1950-10-01), Steenis
patent: 2907906 (1956-05-01), Swedlund

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