Patents by Inventor Eugene M. Smith

Eugene M. Smith 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).

  • Ground-fault protective scheme for multiple-source electric distribution system
    Patent number: 3949272
    Abstract: A ground-fault protective scheme for a three-phase electric distribution system that comprises two sources having neutral points that are interconnected by a neutral conductor and a separate ground connection for each neutral point located at or near the neutral point. The protective scheme responds correctly to a ground fault even though the current resulting from such ground fault may return to its source through either of said ground connections and may distribute itself in any proportion between said ground connections.
    Type: Grant
    Filed: November 19, 1974
    Date of Patent: April 6, 1976
    Assignee: General Electric Company
    Inventor: Eugene M. Smith