Patents by Inventor Jorg Schropfer

Jorg Schropfer 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).

  • Corrosion and wear-resistant chill casting
    Patent number: 5795540
    Abstract: A corrosion and wear-resistant chill cast part is formed from an iron composition comprising from 26 to 36 percent Cr; 0 to 10 percent Ni; 2 to 6 percent Mo; 0 to 3 percent Cu; 0 to 0.2 percent N; 0 to 1.5 percent Si; 0 to 1.5 percent Mn; 4 to 9 percent V; and 1.4 to 1.9 percent C. All percents are by weight of the total composition. The remainder of the composition is Fe and impurities.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: August 18, 1998
    Assignee: KSB Aktiengesellschaft
    Inventors: Anja Dwars, Wolfgang Prechtl, Jorg Schropfer, Hermann Tischner