Patents by Inventor Arthur F. Gulbrandsen

Arthur F. Gulbrandsen 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).

  • Apparatus for converting coal
    Patent number: 4411871
    Abstract: An apparatus, for the rapid heating and subsequent reaction of carbonaceous material and hydrogen, comprising a cylindrical reactor shell; a first inlet conduit, coaxial with the shell, terminating inside the shell and having the terminal discharge end covered with a metal that resists carbide formation which leads to plugging; a second inlet conduit whose discharge end is in proximity to the discharge end of the first conduit; and suitable insulation means between the first and second conduits.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: October 25, 1983
    Assignee: Cities Service Company
    Inventors: Arthur F. Gulbrandsen, Uriel M. Oko