Patents Assigned to David M. Corneille
  • Thermionic cathode and process for preparing the same
    Patent number: 4436651
    Abstract: A thermionic cathode is disclosed employing an alkaline earth metal hydroxy oxy carbonate as an emission material. Cathodes in accordance with the present invention are capable of operating in the range of 650.degree. C. to 800.degree. C. and can be formed by compressing a powdered mixture of the emission material and a metal.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: March 13, 1984
    Assignee: David M. Corneille
    Inventor: David M. Corneille