Patents by Inventor Alexander Kolm

Alexander Kolm 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).

  • Plasma burner operated by means of gaseous mixtures
    Patent number: 4469932
    Abstract: The present invention relates to a plasma burner for metallurgical furnaces which is operated with gaseous mixtures, wherein an addition gas is fed to the plasma burner via a ring conduit into the inside of the burner. The gas conduction pipes on the addition-gas outlet are arranged at a predetermined angle to the longitudinal axis of the burner, 35.degree. to 45.degree.. The point of intersection between plasma arc and addition gas is 25 to 45 mm in front of the rod-shaped cathode. In order to increase the output with constant arc current and without chemical reaction with as molten material, hydrogen or nitrogen is used as addition gas; and when a chemical reaction is desired, oxygen or oxygen-containing gas mixtures are used.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: September 4, 1984
    Assignee: VEB Edelstahlwerk
    Inventors: Karl Spiegelberg, Herbert Hoffmann, Helmfried Jeske, Alexander Kolm, Fred Ebeling