Patents Represented by Attorney Clinton S. James, Jr.

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  • Glass for projection cathode ray tube faceplate
    Patent number: 4830990
    Abstract: This invention relates to glass compositions especially suitable for projection cathode ray tube faceplates which are essentially free from PbO and other readily reducible metal oxides, fluorine, ZnO, TiO.sub.2, and MgO, and which consist essentially, in weight percent, of______________________________________ Li.sub.2 O 0.75-3 Li.sub.2 O + Na.sub.2 O + K.sub.2 O 11-16 Na.sub.2 O 5-7 CaO + SrO + BaO 21.5-26 K.sub.2 O 5-7 Al.sub.2 O.sub.3 1-2 SrO 7.5-10 ZrO.sub.2 2-7 BaO 14-16 CeO.sub.2 0.4-0.8 CaO 0-3 SiO.sub.2 55-60.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: May 16, 1989
    Assignee: Corning Glass Works
    Inventor: John H. Connelly