Patents by Inventor Evangelos Argoudelis

Evangelos Argoudelis 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).

  • Tunable coil assembly
    Patent number: 4008450
    Abstract: A tunable coil assembly including a toroid or ring core and a variable cylindrical core means attached to the toroid core. The variable core means includes a slug movable within an electrically insulative coil form or holder. A turn(s) of electrically conductive wire is wound around both the toroid core and the adjustable core means. Another turn(s) of the wire may be wound around only the toroid core.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: February 15, 1977
    Assignee: Filtech Corporation
    Inventor: Evangelos Argoudelis