Patents by Inventor Karl-Heinrich Schröder

Karl-Heinrich Schröder 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).

  • Casting material for indefinite rollers with sleeve part and method for producing the same
    Patent number: 6805757
    Abstract: A method of the production and processing of alloyed casting material for a working part of an indefinite chill roll, a corresponding casting material and a composite indefinite chill roll incorporating the casting material. The method comprises providing a melt of a certain composition, casting the melt and subjecting the resultant body to a heat treatment. The composition of the melt is adjusted so as to afford a certain graphite and carbide distribution.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: October 19, 2004
    Assignee: Eisenwerk Sulzau-Werfen R. & E. Weinberger AG
    Inventors: Michael Windhager, Bernhard Feistritzer, Karl-Heinrich Schröder, Karl-Heinz Ziehenberger