Patents by Inventor Gerd Thiemann

Gerd Thiemann 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).

  • Publication number: 20070051152
    Abstract: The invention provides a device for heating a metal strip, which device allows the metal strip to be heated precisely and rapidly to a predetermined temperature, while taking up little space. The invention also relates to an apparatus that is suitable for producing hot-rolled metal strip, with which apparatus, despite the small overall space available, optimal heating, in terms of the hot-rolling process, of the rolling stock may be carried out. For this purpose, the device according to the invention is equipped with at least one inductively operating heating device, which comprises an inductor inducing an electromagnetic field, which inductor extends over the conveying path of the metal strip to be heated and the position of which is adjustable transversely to the conveying path depending on the width of the metal strip.
    Type: Application
    Filed: May 24, 2004
    Publication date: March 8, 2007
    Inventors: Rolf Degenhardt, Hans Figge, Hans-Ulrich Lindenberg, Gerd Thiemann
  • Publication number: 20050089210
    Abstract: The invention relates to a flatness measurement and control system for metal strip, which makes it possible to obtain improved strip or coil quality by a simple and effective measurement of departures from flatness and to control the finishing parameters through the evaluation of a line pattern on the strip surface or on the end face of a coil as it is coiled.
    Type: Application
    Filed: October 2, 2003
    Publication date: April 28, 2005
    Inventors: Ulrich Muller, Gustav Peuker, Detlef Sonnenschein, Detlef Winter, Michael Degner, Gerd Thiemann
  • Patent number: 6874724
    Abstract: The invention relates to a method and a device for the positionally correct winding up of a metal strip in a coiling device, the hot strip being fed to the coiling device by a driving device with driving rollers, the driving rollers being tiltable in relation to one another by a controller by means of actuators for changing the gap between the driving rollers, and the controller being fed the position of the edge of the hot strip upstream of the driving device as a measured variable and as a setpoint reference variable, an optimization of the winding result of the rolled strip coil being achieved by the surface geometry of the rolled strip being determined as a measured variable and fed to the controller.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: April 5, 2005
    Assignees: BFI VDeh-Institute fur angewandte Forschung GmbH, Thyssen-Krupp Stahl AG
    Inventors: Ulrich Muller, Andreas Wolff, Gerd Thiemann, Michael Degner
  • Patent number: 6721620
    Abstract: Method of measuring and/or controlling flatness during rolling. The flatness deviation is measured and expressed using orthogonal polynomials. A controlled variable is generated using an Internal Mode Control by comparing the expressed deviation with values of orthogonal polynomials supplied by a model. The comparison provides a control difference to control variables that influence bending, pivoting and axial displacement of the rolls and by multizone cooling.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: April 13, 2004
    Assignee: BFI-VDEh-Institut fur angewandte Forschung GmbH
    Inventors: Mohieddine Jelali, Ullrich Muller, Gerd Thiemann, Andreas Wolff
  • Publication number: 20030102401
    Abstract: The invention relates to a method and a device for the positionally correct winding up of a metal strip in a coiling device, the hot strip being fed to the coiling device by a driving device with driving rollers, the driving rollers being tiltable in relation to one another by a controller by means of actuators for changing the gap between the driving rollers, and the controller being fed the position of the edge of the hot strip upstream of the driving device as a measured variable and as a setpoint reference variable, an optimization of the winding result of the rolled strip coil being achieved by the surface geometry of the rolled strip being determined as a measured variable and fed to the controller.
    Type: Application
    Filed: January 10, 2003
    Publication date: June 5, 2003
    Inventors: Ulrich Muller, Andreas Wolff, Gerd Thiemann, Michael Degner
  • Publication number: 20020050070
    Abstract: Method of measuring and/or controlling flatness during rolling, in which the flatness errors are broken down into independent components.
    Type: Application
    Filed: August 17, 2001
    Publication date: May 2, 2002
    Inventors: Mohieddine Jelali, Ullrich Muller, Gerd Thiemann, Andreas Wolff
  • Patent number: 6286349
    Abstract: The invention relates to a flatness measurement and control system for metal strip, which makes it possible to obtain improved strip or coil quality by a simple and effective measurement of departures from flatness and to control the finishing parameters through the evaluation of a line pattern on the strip surface or on the end face of a coil as it is coiled.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: September 11, 2001
    Assignees: Betriebsforschungsinstitut VDEh-Institut fur angewandte Forschung GmbH, Gesellschaft fur Optische Messtechnik GmbH, Krupp-Hoesch-Stahl AG
    Inventors: Ulrich Müller, Gustav Peuker, Detlef Sonnenschein, Detlef Winter, Michael Degner, Gerd Thiemann
  • Publication number: 20010012388
    Abstract: The invention relates to a flatness measurement and control system for metal strip, which makes it possible to obtain improved strip or coil quality by a simple and effective measurement of departures from flatness and to control the finishing parameters through the evaluation of a line pattern on the strip surface or on the end face of a coil as it is coiled.
    Type: Application
    Filed: March 4, 1998
    Publication date: August 9, 2001
    Applicant: BETRIEBSFORSCHUNGSINSTITUT VDEH-INSTITUT FUR ANGEWANDTE FORSCHUNG GMBH
    Inventors: ULRICH MULLER, GUSTAV PEUKER, DETLEF SONNENSCHEIN, DETLEF WINTER, MICHAEL DEGNER, GERD THIEMANN