Patents by Inventor Nikolas G. Ponghis

Nikolas G. Ponghis 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).

  • Electric arc plasma torch
    Patent number: 4596918
    Abstract: The plasma torch has a hot cathode (3) connectable to the negative poles of a main current course and of an arcing current source, an anode (2) connectable to the positive pole of the main current source, and an intermediate arcing electrode (6) connectable to the positive poles of both sources. An inert gas is introduced (at 8) between the cathode (3) and the arcing electrode (6). A plasma-producing gas is introduced (at 4) between the arcing electrode (6) and the anode (2). A fuel supply line (17) may open into the space between the arcing electrode (6) and the anode.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: June 24, 1986
    Assignee: Centre de Recherches Metallurgiques Centrum voor Research in de Metallurgie
    Inventor: Nikolas G. Ponghis
  • Operating a blast furnace with the injection of hot reducing gases
    Patent number: 4521246
    Abstract: Hot reducing gases, mainly containing CO, H.sub.2, and optionally N.sub.2, as well as smaller quantities of H.sub.2 O and CO.sub.2, are injected through some of the tuyeres. Hot air, hot superoxygenated air, recycled gas, or combustion vapor containing sufficient CO.sub.2 is injected through the other tuyeres.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: June 4, 1985
    Assignee: Centre de Recherches Metallurgiques-Centrum voor Research in de Metallurgie
    Inventors: Nikolas G. Ponghis, Arthur G. Poos