Patents by Inventor Hans-Dirk Piwowar

Hans-Dirk Piwowar 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: 7455098
    Abstract: A permanent chill mold for the continuous casting of metal, having a mold cavity (2) which has a pouring slot (3), an exit opening (4) and a casting cone (6). At least one concave bulging (7) is provided that extends in the casting direction (G), which begins at a distance (A) below a predetermined casting bath level position (5) and extends up to the exit opening (4).
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: November 25, 2008
    Assignee: KME Germany AG & Co. KG
    Inventors: Hans-Günter Wober, Gerhard Hugenschütt, Dietmar Kolbeck, Raimund Boldt, Frank Maiwald, Daniel Reinelt, Hans-Dirk Piwowar, Dirk Rode
  • Publication number: 20070125511
    Abstract: A permanent chill mold for the continuous casting of metal, having a mold cavity (2) which has a pouring slot (3), an exit opening (4) and a casting cone (6). At least one concave bulging (7) is provided that extends in the casting direction (G), which begins at a distance (A) below a predetermined casting bath level position (5) and extends up to the exit opening (4).
    Type: Application
    Filed: November 29, 2006
    Publication date: June 7, 2007
    Inventors: Hans-Gunter Wober, Gerhard Hugenschutt, Dietmar Kolbeck, Raimund Boldt, Frank Maiwald, Daniel Reinelt, Hans-Dirk Piwowar, Dirk Rode
  • Publication number: 20070125512
    Abstract: A permanent chill mold for the continuous casting of metals. At least one partial region of the outer surface of the permanent chill mold (1) is provided with cooling channels (2, 2a, 2b, 2c). The depth and/or the width of the cooling channels (2, 2a, 2b, 2c) are greatest in the middle of a sidewall of the permanent chill mold (1), and they decrease in the direction of the corner region (4) of the sidewall. Because of this, a uniform heat dissipation can be implemented, and thereby higher casting speeds are possible.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 7, 2007
    Inventors: Hans-Gunter Wober, Gerhard Hugenschutt, Dietmar Kolbeck, Raimund Boldt, Frank Maiwald, Daniel Reinelt, Hans-Dirk Piwowar, Dirk Rode
  • Patent number: 6874564
    Abstract: A liquid-cooled mold for a continuous casting of metals, including mold plates made of copper or a copper alloy, which are connected respectively to an adapter plate or a cooling-water tank by clamping bolts. The mold is characterized in that the clamping bolts are fastened to plateau pedestals which project in an island-like manner from the cooling arrangement side of the mold plate, which jut at least partially into a cooling arrangement gap formed between the mold plate and the adapter plate or the cooling-water tank, respectively, and have a streamlined shape adjusted to the flow direction of the cooling arrangement.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: April 5, 2005
    Assignee: KM Europa Metal AG
    Inventors: Gerhard Hugenschütt, Thomas Rolf, Dietmar Kolbeck, Hans-Günter Wobker, Dirk Rode, Roland Hauri, Hans-Dirk Piwowar, Hans-Jürgen Hemschemeier
  • Publication number: 20040069439
    Abstract: A liquid-cooled mold for a continuous casting of metals, including mold plates made of copper or a copper alloy, which are connected respectively to an adapter plate or a cooling-water tank by clamping bolts. The mold is characterized in that the clamping bolts are fastened to plateau pedestals which project in an island-like manner from the cooling arrangement side of the mold plate, which jut at least partially into a cooling arrangement gap formed between the mold plate and the adapter plate or the cooling-water tank, respectively, and have a streamlined shape adjusted to the flow direction of the cooling arrangement.
    Type: Application
    Filed: August 18, 2003
    Publication date: April 15, 2004
    Inventors: Gerhard Hugenschutt, Thomas Rolf, Dietmar Kolbeck, Hans-Gunter Wobker, Dirk Rode, Roland Hauri, Hans-Dirk Piwowar, Hans-Jurgen Hemschemeier