Patents by Inventor Edward K. Ellis

Edward K. Ellis 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).

  • Narrow prep MIG welding
    Patent number: 5900167
    Abstract: MIG welding apparatus includes a torch body; a machine barrel extending forwardly of the torch body; a contact tip extending forwardly from the machine barrel; and a pair of gas supply tubes extending along and substantially parallel to the contact tip, enabling reduction in the weld prep angle to about three degrees.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: May 4, 1999
    Inventors: James L. Rudnicki, Edward K. Ellis, Douglas J. Merrill, Lawrence E. Rentz