Hook spring of shadow mask frame assembly for color cathode ray

Details Hook spring of shadow mask frame assembly for color cathode ray Hook spring of shadow mask frame assembly for color cathode ray

1995-12-28

1998-02-10

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313405, H01J 2907

Patent

active

057172803

ABSTRACT:
A hook spring of a shadow mask frame assembly for a cathode ray tube is formed by joining two metals having different thermal expansion coefficients over a predetermined range of temperatures. One ends of the hook spring is coupled with a stud pin installed at the inner side of a panel and the other end is coupled with a circumferential surface of a frame. The two metals are stainless steel and N48, and a volume ratio of the stainless steel and N48 is 5:5 to 6:4. Excessive compensation for thermal expansion of the shadow mask frame assembly can be reduced in the range of 80.degree..about.120.degree. C.

REFERENCES:
patent: 4792719 (1988-12-01), Ornstein
patent: 5502350 (1996-03-01), Uehara et al.

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