Patents by Inventor Gunther Nothhelfer

Gunther Nothhelfer 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).

  • Process for injecting brown coal into a blast furnace
    Patent number: 4266968
    Abstract: In a process for injecting fine-grain brown coal or lignite into a blast furnace through tuyere arches thereof, the initial speed at which coal dust, after leaving the supply conduit, moves towards the center of the blast furnace hearth is substantially lower than the speed at which the hot blast is blown into the furnace.
    Type: Grant
    Filed: March 25, 1980
    Date of Patent: May 12, 1981
    Assignees: Rheinische Braunkohlenwerke A.G., Arbed S.A.
    Inventors: Heinz G. Daldrup, Gunther Nothhelfer, Friedrich H. Franke, Raymond Limpach