Patents by Inventor Frank E. Brauns

Frank E. Brauns 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).

  • Manufacture of steel from ores containing high phosphorous and other undesirable constituents
    Patent number: 4244732
    Abstract: The production of relatively low phosphorous, semifinished steel from blended presized granules of high phosphorous iron ore and limestone, directly and selectively reducing the iron oxide to sponge iron and calcined lime with the current of hot reducing gases in a shaft furnace, charging heated granules directly to a melting furnace to obtain semifinished steel and slagging off phosphorous and other undesirable components and thereafter refining the semifinished steel in a conventional electric furnace.
    Type: Grant
    Filed: March 27, 1979
    Date of Patent: January 13, 1981
    Assignees: Kaiser Engineers, Inc., Societe Nationale de Siderurgie
    Inventor: Frank E. Brauns