Patents Represented by Attorney C. S. Janes

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  • Glazes for glass-ceramic articles
    Patent number: 4582760
    Abstract: The present invention is concerned with the preparation of glazes which are especially suitable for application to glass-ceramic articles containing potassium fluorrichterite as substantially the sole crystal phase. The glazes consist essentially, expressed in terms of weight percent on the oxide basis, ofSiO.sub.2 :46-50Al.sub.2 O.sub.3 :5-8ZrO.sub.2 :0.3-1Li.sub.2 O:1-2Na.sub.2 O:2-3.5K.sub.2 O:1-2CaO:1-4ZnO:2-6SrO:2-6B.sub.2 O.sub.3 :9-11PbO:20-25.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: April 15, 1986
    Assignee: Corning Glass Works
    Inventors: George H. Beall, Paul S. Danielson, John E. Megles, Jr., Walter H. Tarcza