Patents by Inventor Heiko Weisel

Heiko Weisel 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 sintering iron oxide-containing materials on a sintering machine
    Patent number: 5476533
    Abstract: A sinterable mixture comprising iron-containing materials and solid fuel is sintered on a sintering machine; to decrease the rate at which exhaust gas is to be removed and to produce a desirable sinter, a part of the exhaust gas is enriched to an oxygen content of up to 24% by the addition of higher-oxygen gases and is then recirculated as a recycle gas, and exhaust gas is removed as a tail gas from the process only at a rate which corresponds to the rate of the gas which is formed during the sintering process plus the rate of the gas added for enriching plus the rate of inleaked air which has infiltrated from the outside minus the rate of oxygen consumption.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: December 19, 1995
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Fred Stieler, Norbert Magedanz, Walter Gerlach, Jurgen Otto, Martin Hirsch, Fred Cappel, Detlev Schlebusch, Hermann Schmidt, Heiko Weisel, Hans-Joachim Werz