Patents by Inventor Willi Stempel

Willi Stempel 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).

  • Apparatus for metallurgical treatment of molten steel
    Patent number: 5263690
    Abstract: A unit for the metallurgical treatment of molten steel, located in steel teeming ladles, by heating and vacuum treatment. The ladle-metallurgical treatment unit serves for the mutual treatment of steel meltings by heating and vacuum treatment. It consists of two treatment stations, each of which is provided with a stationary tank 1, 2 for incorporating the steel teeming ladle 3, 4, and each is provided with a laterally movable vacuum lid mechanism 13. A heating device with a swiveling heating lid 9, which is arranged centrally between the two treatment stations, is brought into the working position over one of the two steel teeming ladles 3, 4.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: November 23, 1993
    Assignee: Man Gutehoffnungshutte
    Inventors: Gunter Wolters, Willi Stempel, Gerhard Juenemann