Patents Assigned to Quality Hermetics Limited
  • Glass seal
    Patent number: 4029897
    Abstract: Hermetic glass seals of high electrical resistivity are provided. Glass compositions suitable for use in such seals and based on lead-silica glasses are described. Glass compositions having particular efficacy in a nuclear reactor environment also are described.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: June 14, 1977
    Assignee: Quality Hermetics Limited
    Inventors: Peter Mayer, M. Krishna Murthy, Albert H. Brooks, John A. Topping