Patents by Inventor Ulrich Bleeck

Ulrich Bleeck 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).

  • Foam prevention compositions and processes for use in steel production
    Patent number: 4473397
    Abstract: The present invention provides a process for preventing foaming over in the case of converting pig iron into steel, as well as for lowering the phosphorus content, by blowing in oxygen in the presence of basic, slag-foaming materials, with the simultaneous blowing of finely particulate calcium carbide into and/or on to the melt, wherein finely particulate calcium carbide is introduced in an amount corresponding to the oxygen excess of the slag at the point of time at which the rate of decarbonizing increases, the slag foams up and/or the slag indicates an increased oxygen potential.The present invention also provides a composition and apparatus for carrying out this process.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: September 25, 1984
    Assignee: SKW Trostberg Aktiengesellschaft
    Inventors: Ulrich Bleeck, Alfred Freissmuth, Dietrich Radke