Patents by Inventor Thomas J. French

Thomas J. French 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).

  • Patent number: 6029297
    Abstract: A multi-purpose electrician pliers tool having an elongate body with a forward end and a rearward end and constructed of a first member and a second member pivotally secured together by a pivot pin. The first and second members include forwardly extending and overlapping jaw portions on a forward side of the pivot pin and define therebetween a plurality of opposing and pivotally interengaging locations corresponding to a plurality of different wire fabricating features located on both forward and rearward sides of the pivot pin.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: February 29, 2000
    Inventor: Thomas J. French
  • Patent number: 4843208
    Abstract: A plasma torch head adapted to cut longitudinal slots in tubes from the interior is disclosed. The plasma torch head includes an outer body made of reinforced fiberglass. An adhesive is used to affix fiberglass components of the torch head together to form a gas tight seal. As a cut is made, the outer body of the torch becomes charred. At the end of each cut the torch head is either replaced or rebuilt. Gas to support the plasma and electric power is supplied to the torch head via an electrically conductive tube concentric with the major axis of the torch head.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: June 27, 1989
    Assignee: EPRI
    Inventors: Thomas J. French, Lester R. Harrell, Anthony L. Dellinger