Patents by Inventor by Shirley A. Kamin, administratrix

by Shirley A. Kamin, administratrix 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).

  • Composite ceramic articles and method of making
    Patent number: 3993844
    Abstract: Ceramic bodies coated or joined to one another with ceramic eutectic compositions of alumina, silica and rare earth oxides melting below 1600.degree. C are described. An exemplary composition contains about 20 weight percent alumina, 58 weight percent silica, and 22 weight percent yttria. Composite structures of such bodies exhibit good to excellent thermal shock resistance, resistance to chemical attack, and joint strengths between bodies and coatings or between various silica, alumina and rare earth oxide based ceramics joined together or to each other.
    Type: Grant
    Filed: December 30, 1974
    Date of Patent: November 23, 1976
    Assignee: GTE Sylvania Incorporated
    Inventors: William T. Kiger, George J. Kamin, deceased, by Shirley A. Kamin, administratrix