Color picture tube with shadow mask supporting assembly

Details Color picture tube with shadow mask supporting assembly Color picture tube with shadow mask supporting assembly

1988-04-25

1989-09-12

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313404, H01J 2981

Patent

active

048663336

ABSTRACT:
A color picture tube comprises a panel of a substantially rectangular shape, a phosphor screen formed on the inner surface of the panel, a stud pin which is made of a rod with a tapered portion and which is mounted on the inner side surface of the panel, a spring member having a through hole and fitted with the tapered portion of the stud pin through the through hole, and a shadow mask mounted on the panel through the stud pin and the spring member so as to be opposite or adjacent to the phosphor screen, wherein if the spring member is in contact with the stud pin at least two positions, the following inequality is satisfied:

REFERENCES:
patent: 2951167 (1960-08-01), Kegg et al.
patent: 3334259 (1967-08-01), Shrader
patent: 3387160 (1968-06-01), Schwartz
patent: 3553517 (1971-01-01), DeBernardis
patent: 3610990 (1971-10-01), Yamazaki
patent: 3873875 (1975-03-01), Miller
patent: 4300071 (1981-11-01), Dougherty et al.
patent: 4387321 (1983-06-01), Gijrath
patent: 4644222 (1987-02-01), Brunn
patent: 4652292 (1987-03-01), Tokita et al.

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