Patents by Inventor Edwin T. Chan

Edwin T. Chan 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).

  • Xenon arc lamp with compressive ceramic to metal seals
    Patent number: 4179037
    Abstract: A high pressure arc lamp envelope having an anode portion and cathode portion, separated by a ceramic insulator, is configured to prevent the high pressure from causing tensile stresses in the ceramic and its associated hermetic seals. The window seal is configured to reduce tensile stresses in the window and to place the metal-to-window bond of the seal in compression.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: December 18, 1979
    Assignee: Varian Associates, Inc.
    Inventors: Edwin T. Chan, Stanley R. Jepson