Compositions – Electrically conductive or emissive compositions – Free metal containing
Patent
1975-09-29
1977-04-19
Padgett, Benjamin R.
Compositions
Electrically conductive or emissive compositions
Free metal containing
252518, 252520, 106 1, 106 53, 106 47R, H01B 108
Patent
active
040187179
ABSTRACT:
Internal arcing in a cathode ray tube is substantially prevented by coating a portion of the interior of the funnel and neck of the tube with an electrically conductive composition, and coating a portion of the interior of the funnel and neck of the tube with an electrically resistive composition. The electrically conductive composition comprises about 10-30 weight percent iron and about 90-70 weight percent of a glass frit. The electrically resistive composition comprises about 8-24 weight percent iron, about 2-8 weight percent TiO.sub.2 and about 90-68 weight percent glass frit. The use of conventional "dag" coatings is eliminated. The cathode ray tube is especially useful as a picture tube in a color television receiver in which high operating voltages are employed.
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patent: 3907585 (1975-09-01), Francel et al.
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Francel Josef
Lemke Galen D.
Dence Richard B.
Holler Edward J.
McLary Steve M.
Owens--Illinois, Inc.
Padgett Benjamin R.
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