Patents by Inventor Terence Stanley Busby

Terence Stanley Busby has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High zirconia containing glass ceramic cement
    Patent number: 3967969
    Abstract: A glass ceramic cement comprising by weight 20% to 45% ZrO.sub.2, 20% to 60% Al.sub.2 O.sub.3, 0% to 27% SiO.sub.2, 0% to 30% CaO, 0% to 10% Na.sub.2 O, the cement including at least one material selected from the group B.sub.2 O.sub.3 and PbO, in the amounts up to 35% and 25% respectively, sufficient to assist in taking ZrO.sub.2 into solution during the melting of said glass ceramic cement, B.sub.2 O.sub.3 in the absence of PbO being in an amount more than 5%, PbO in the absence of B.sub.2 O.sub.3 being in an amount more than 2%.
    Type: Grant
    Filed: July 9, 1974
    Date of Patent: July 6, 1976
    Assignee: National Research Development Corporation
    Inventors: Terence Stanley Busby, Geoffrey Charles Cox