Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1995-11-15
1997-01-14
O'Shea, Sandra L.
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313404, 313407, 313408, H01J 2980
Patent
active
055943004
ABSTRACT:
The present invention provides an improvement in a color picture tube having a tensioned mask and support frame assembly. Each of the mask and the support frame is rectangular and has two long sides that parallel a central major axis thereof and two short sides that parallel a central minor axis thereof. The mask has a substantially cylindrical contour, being curved along the major axis and straight along the minor axis. The improvement comprises the frame including two first members that parallel the major axis and two second members, attached to the ends of the first members, that parallel the minor axis. Each of the first members includes a rigid section and a compliant section cantilevered from the rigid section. The mask is attached to the distal ends of the cantilevered compliant sections.
REFERENCES:
patent: 2669675 (1954-02-01), Lawrence
patent: 3030536 (1962-04-01), Hackett et al.
patent: 4495437 (1985-01-01), Kume et al.
patent: 4866334 (1989-09-01), Fendley et al.
patent: 4994712 (1991-02-01), Strauss
patent: 5053674 (1991-10-01), Gismondo et al.
patent: 5214349 (1993-05-01), Sakata et al.
Bauder Richard C.
Michalchuk Joey J.
Nosker Richard W.
Ragland, Jr. Frank R.
Haynes Mack
Irlbeck Dennis H.
O'Shea Sandra L.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
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