Patents by Inventor Jurgen Sardemann

Jurgen Sardemann 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).

  • Stirring of molten metal core in a casting as withdrawn from a machine for continuous casting
    Patent number: 4256165
    Abstract: One or more electromagnetic stirring elements are mounted on arms and/or holders, extending from a carriage which runs on a stationary bed and in a direction transversely to the direction of casting. The stirring elements are either directly positioned in the direction of carriage movement or orthogonally thereto. Multiphase elements can be positioned from three different directions to circumscribe the casting.
    Type: Grant
    Filed: June 26, 1979
    Date of Patent: March 17, 1981
    Assignees: Mannesmann Aktiengesellschaft, AEG-Elotherm GmbH
    Inventors: Axel von Starck, Hans E. Gerbig, Hans Schrewe, Jurgen Sardemann, Josef Glaser
  • Electromagnetic stirring apparatus
    Patent number: 4244419
    Abstract: An electromagnetic stirring apparatus for stirring the liquid center core of a continuous casting. The casting is supported by and transported over guide rolls while a changing electromagnetic field is induced within the liquid casting core by induction coils positioned beneath the casting. Fingers of a stack of ferromagnetic plates form the cores of the induction coils and are positioned between the guide rolls and are close enough to the casting to induce a strong field therein.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: January 13, 1981
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Axel von Starck, Hans-Erwin Gerbig, Hans Schrewe, Jurgen Sardemann
  • Method of ascertaining the effectiveness of cooling rollers in continuous casting machines
    Patent number: 4149580
    Abstract: Effectiveness of internal cooling of the rollers in a withdrawal path for continuously cast ingots is determined by measuring the drop in surface temperature of the ingot when in engagement with the rollers. For this, a thermo element is affixed to the ingot's surface and its output is recorded or otherwise processed.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: April 17, 1979
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Jurgen Sardemann, Klaus Wunnenberg