Patents by Inventor Klaus Schulz, deceased

Klaus Schulz, deceased 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 continuously refining molten metals
    Patent number: 4052043
    Abstract: The continuous refining of molten metal is carried out in a refining apparatus having communicating first and second refining stage spaces. Refining gas, such as oxygen, is blown into the molten metal in the presence of a slag layer on the molten metal. The molten metal and the slag are conveyed as two separate non-intermingled streams through the refining stage spaces, as distinguished from a slag-metal emulsion. The slag in the second refining stage space is caused continuously to flow back into the first refining stage space to form a slag layer on the molten metal in the first refining stage space. Refining gas is blown into the molten metal in the first refining stage space below the slag layer, and the molten metal is conveyed from the first refining stage space to the second refining stage space while preventing the flow of slag from the first refining stage space to the second refining stage space.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: October 4, 1977
    Assignee: Stahlwerke Peine-Salzgitter AG
    Inventors: Paul Rheinlander, Gustav Mahn, Klaus Schulz, deceased, Ingrid Ruhland, legal representative, Klaus Berner
  • Process for continuously refining molten metals
    Patent number: 3985549
    Abstract: The disclosed process of continuously refining molten metal is carried out in a refining apparatus having communicating first and second refining stage spaces. Refining gas, such as oxygen, is blown into the molten metal in the presence of a slag layer on the molten metal. The molten metal and the slag are conveyed as two separate non-intermingled streams through the refining stage spaces, as distinguished from a slag-metal emulsion. The slag in the second refining stage space is caused continuously to flow back into the first refining stage space to form a slag layer on the molten metal in the first refining stage space. Refining gas is blown into the molten metal in the first refining stage space below said slag layer, and the molten metal is conveyed from said first refining stage space to said second refining stage space while preventing the flow of slag from said first refining stage space to said second refining stage space.
    Type: Grant
    Filed: May 7, 1975
    Date of Patent: October 12, 1976
    Assignee: Stahlwerke Peine-Salzgitter Aktiengesellschaft
    Inventors: Paul Rheinlander, Gustav Mahn, Klaus Berner, Klaus Schulz, deceased, by Ingrid Ruhland, legal representative