Tension mask frame assembly and cathode ray tube having the...

Details Tension mask frame assembly and cathode ray tube having the... Tension mask frame assembly and cathode ray tube having the...

2006-08-01

2006-08-01

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

C313S405000, C313S407000

Reexamination Certificate

active

07084560

ABSTRACT:
A tension mask frame assembly for a color cathode ray tube (CRT) includes a frame and a tension mask installed to apply tension to the support members, and wherein a plurality of electron beam passing holes are formed. The frame includes; a pair of first and second support members separated by a predetermined distance; first and second elastic members installed between the first and second support members, and supporting the first and second support members; and first, second, third, and fourth holder units installed on the first and second support members and the first and second elastic members, and respectively including first, second, third, and fourth holders and first, second, third, and fourth springs fixed to the first, second, third, and fourth holders. The thermal expansion coefficient of the material forming the third and fourth holders is no more than that of the material forming the first and second elastic members.

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patent: 2001-1878 (2001-01-01), None
patent: 2001-65365 (2001-10-01), None

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