Patents by Inventor Martin Kienow

Martin Kienow 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).

  • Patent number: 4634685
    Abstract: A refractory article for casting of liquid melts, especially steel, fabricated from a mixture of Al.sub.2 O.sub.3, graphite, a flux component, a synthetic resin binder and a metallic powder. The flux component contains a first flux with a melting point from 550.degree. to 900.degree. C. and a second flux that becomes active in the mixture in a temperature ranging from 1350.degree. and 1550.degree. C. The refractory article need not be heated before use, and the carbon contained therein, which determines the strength of the article, is retained for a much longer period during use, so that the article will have a long service life.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: January 6, 1987
    Assignee: Didier-Werke AG
    Inventors: Siegfried Pohl, Ernst Luhrsen, Peter Jeschke, Ortwin Rave, Martin Kienow, Werner Richter