Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Patent
1987-06-04
1989-05-09
Ramsey, Kenneth J.
Electric lamp or space discharge component or device manufacturi
Process
With assembly or disassembly
21912163, 21912179, B23K 2602
Patent
active
048285234
ABSTRACT:
A front assembly for a color cathode ray tube is disclosed. The tube includes a faceplate having on its inner surface a centrally disposed phosphor screen embraced by a peripheral sealing area adapted to mate with a funnel. A faceplate-mounted frame-like shadow mask support structure secured to the inner surface of the faceplate between the sealing area and the screen has a mask-receiving surface for receiving and supporting a foil shadow mask and holding the mask in tension by laser weldments. The weldments according to the invention are spaced close enough to hold the mask in tension without distortion, yet spaced widely enough to provide for relatively rapid welding and strong, independent welds.
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Welding Engineer, Aug. 1970, pp. 42-44.
Improvements in the RCA Three--Beam Shadow Mask Color Kinescope, by Grimes et al., IRE, Jan. 1954.
Fendley James R.
Wichmann Janice L.
Ramsey Kenneth J.
Zenith Electronics Corporation
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