Patents by Inventor Hartmut Kirstein

Hartmut Kirstein 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: 7121130
    Abstract: The invention relates to a method and an installation for hot-rolling strips using a reversible Steckel rolling frame (8), each side of which is equipped with a respective furnace coiler (9, 10) and a driving mechanism (17,18), provided between the furnace coiler (9, 10) and Steckel rolling frame (8). The aim of the invention is to crop particularly thin, hot strips. To achieve this, the strip is cropped during the reversible rolling process by a single pair of flying cropping shears (20), positioned between one of the driving mechanisms (17) and the Steckel rolling frame (8). The cropping shears comprise in particular a drum blade.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: October 17, 2006
    Assignee: SMS Demag AG
    Inventors: Hartmut Kirstein, Heiko Reichel
  • Publication number: 20050285316
    Abstract: The invention relates to a method and an installation for hot-rolling strips using a reversible Steckel rolling frame (8), each side of which is equipped with a respective furnace coiler (9, 10) and a driving mechanism (17, 18), provided between the furnace coiler (9, 10) and Steckel rolling frame (8). The aim of the invention is to crop particularly thin, hot strips. To achieve this, the strip is cropped during the reversible rolling process by a single pair of flying cropping shears (20), positioned between one of the driving mechansims (17) and the Steckel rolling frame (8). Said cropping shears comprise in particular a drum blade.
    Type: Application
    Filed: December 10, 2003
    Publication date: December 29, 2005
    Inventors: Hartmut Kirstein, Heiko Reichel
  • Patent number: 4397205
    Abstract: For cutting metal plate with curved edges so that the transverse cuts are perpendicular to the chord of the curve, the leading plate end is laterally located against an abutment close to the cutter, and the plate is swivelled about the abutment until the plate edge at the position of the trailing end cut is in a position corresponding to the leading end at the abutment. The plate edge position is monitored by extensible feelers which also measure the curvature of the plate edge.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: August 9, 1983
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Hartmut Kirstein