Patents by Inventor Uwe Hasche

Uwe Hasche 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).

  • Method of utilizing secondary raw materials containing iron, zinc and lead
    Patent number: 6494933
    Abstract: The invention relates to a method of utilizing secondary raw materials containing iron, zinc and lead, preferably steelmaking dusts, in a rotary tubular furnace customarily equipped for the rolling process, with basically adjusted rolling slag. By reducing the portion of the carbon carriers in the burden, the energy balance of the rolling process is improved on one hand, and the throughput of the rotary tubular furnace used is increased on the other hand. By improving the quality of the rolling slag, the capability of utilizing the same is favored.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: December 17, 2002
    Assignees: B. U. S. Zinkrecycling Freiberg GmbH, FNE Forschungsinstitut fur Nichteisen-Metalle
    Inventors: Eberhard Saage, Uwe Hasche, Wolfgang Dittrich, Diethart Langbein