Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1992-01-31
1993-08-03
O'Shea, Sandra L.
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313404, H01J 2907
Patent
active
052332667
ABSTRACT:
The improved color picture tube includes an evacuated glass envelope having a rectangular faceplate panel. The panel includes a shadow mask assembly mounted therein by support means located at the four corner of the panel. Each support means includes a stud attached to the glass envelope. The improvement comprises the support means also including, at each of the four corners, a first spring and a second spring. Each spring is elongated, with a first portion thereof attached to the mask assembly and a second portion thereof cantilevered away from the assembly. The first spring extends peripherally in a first direction with respect to the assembly, and the second spring extends peripherally in a second direction with respect to the assembly. The first spring includes an aperture within the second portion that engages a respective stud. A section of the second portion of the second spring overlaps the second portion of the first spring. The overlapped portions of the first and second springs are attached together.
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Cosma Pedro E.
Spina Paolo
Irlbeck Dennis H.
O'Shea Sandra L.
Tripoli Joseph S.
Videocolor S.p.A.
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