CRT Internal shielding means for a spun glass envelope funnel se

Details CRT Internal shielding means for a spun glass envelope funnel se CRT Internal shielding means for a spun glass envelope funnel se

1982-02-26

1985-04-23

Demeo, Palmer

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313479, 315 85, H01J 2980, H01J 2986, H01J 152

Patent

active

045132216

ABSTRACT:
The invention relates to internal magnetic shielding means for a cathode ray tube using a spun-funnel envelope portion. The sidewall of the shielding structure is of discretely shaped contour to provide a desired spatial compatibility with at least portions of a projecting glass ridge on the interior surface of the funnel.

REFERENCES:
patent: 3005122 (1961-10-01), Coleman et al.
patent: 3959686 (1976-05-01), Davis et al.
patent: 4069354 (1978-01-01), Pekosh
patent: 4198587 (1980-04-01), Vehoeven et al.
patent: 4467241 (1984-08-01), Hines

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