Patents by Inventor Robert F. Stetson

Robert F. Stetson 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).

  • Orifice tip
    Patent number: 4112288
    Abstract: An orifice tip for a plasma arc welding and cutting torch is described wherein the tip is comprised of an isotropic graphite of substantially uniform thermal conductivity and with a very small particle and pore size, thereby providing substantially superior operating life.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: September 5, 1978
    Assignee: General Atomic Company
    Inventors: William R. Pieren, Robert F. Stetson