Patents by Inventor Dietmar Letzig

Dietmar Letzig 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).

  • Method and device for producing a magnesium sheet
    Patent number: 9895731
    Abstract: The present invention relates to a process and to an apparatus for producing a magnesium sheet from a magnesium strip in a rolling device, said process having lower material heat losses compared to known processes and requiring a lower expenditure on apparatus. In the process, the magnesium strip, after preheating, is guided through at least one roll nip formed by at least one pair of counter-rotating working rollers, which comprise a main roller body. The process is characterized in that at least one of the two counter-rotating working rollers comprises at least one heat-insulating sheath surrounding the main roller body.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: February 20, 2018
    Assignee: Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH
    Inventors: Gerrit Kurz, Dietmar Letzig, Werner Stahl
  • METHOD AND DEVICE FOR PRODUCING A MAGNESIUM SHEET
    Publication number: 20160271662
    Abstract: The present invention relates to a process and to an apparatus for producing a magnesium sheet from a magnesium strip in a rolling device, said process having lower material heat losses compared to known processes and requiring a lower expenditure on apparatus. In the process, the magnesium strip, after preheating, is guided through at least one roll nip formed by at least one pair of counter-rotating working rollers, which comprise a main roller body. The process is characterized in that at least one of the two counter-rotating working rollers comprises at least one heat-insulating sheath surrounding the main roller body.
    Type: Application
    Filed: December 3, 2014
    Publication date: September 22, 2016
    Inventors: Gerrit Kurz, Dietmar Letzig, Werner Stahl