Patents by Inventor Kenneth David Fitchew

Kenneth David Fitchew 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).

  • Protection circuits
    Patent number: 4099217
    Abstract: A surge protection circuit for repeaters in a co-axial telecommunications cable where the power supply is through the cable conductors includes a cold-cathode discharge tube connected so as to provide a discharge path, when a surge occurs, for a capacitor through the power tapping resistor so that the discharge current through the power tapping resistor is in opposition to the normal current through the resistor.
    Type: Grant
    Filed: February 11, 1977
    Date of Patent: July 4, 1978
    Assignee: The Post Office
    Inventor: Kenneth David Fitchew