Patents by Inventor Eric M. Ek

Eric M. Ek 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).

  • Low thermal stress electrode
    Patent number: 4375044
    Abstract: A collector for use in a travelling wave tube includes a central metallic re that has a peripheral ceramic insulator with the central metallic core having a plurality of circumferentially spaced primary slots extending inwardly from the periphery and an equal number of secondary slots extending perpendicular to the primary slots adjacent the periphery of the electrode. The primary slots define a plurality of fingers and the secondary slots act as hinges for the fingers.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: February 22, 1983
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Eric M. Ek