Patents by Inventor John H.K. Piepenhagen

John H.K. Piepenhagen 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: 4218048
    Abstract: A shrouding apparatus, suspended from a bottom pour vessel carries a vertical shroud tube at one end for surrounding a molten metal pouring stream and a counterweight at its other end to force the shroud tube against the bottom of the pouring vessel. The apparatus includes means for introducing a protective atmosphere to the interior of the shroud.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: August 19, 1980
    Assignee: Georgetown Texas Steel Corp.
    Inventors: Michael J. Vanecek, John H. K. Piepenhagen, Michael J. Neale, Steven M. Lasiter, Raymond A. Bailey
  • Patent number: 4043384
    Abstract: A spray apparatus for a continuous casting machine for delivering spray water to all faces of a partially solidified metal casting as it emerges from the bottom of a tubular mold, in which the spray apparatus includes a water source, a water distribution ring around the outside of the mold, and downwardly extending water pipes, each pipe carrying a nozzle at its lower extremity, which nozzle is directed toward a face of the hot casting as it emerges from the mold. The invention is characterized by the entire spray apparatus being protected by the walls of the mold from the effects of the heat and breakout of molten metal.
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: August 23, 1977
    Assignee: Georgetown Texas Steel Corporation
    Inventors: John H.K. Piepenhagen, Michael J. Vanecek