Patents by Inventor Hans Kirchhoff

Hans Kirchhoff 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: 4554813
    Abstract: Device to separate without gaps the trailing end of a leading individual length of rolled stock and the leading end of a following length, which are parted from a rolled billet by cross-cutting shears, in the live-roller feed bed upstream of cooling beds, comprises a separate trough section disposed downstream of a switch in the form of a separating diverter subdivided into two parallel longitudinal sections, one with a fixed trough section and one vertically displaceable trough section which forms a depressed portion at a lower level.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: November 26, 1985
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hugo Feldmann, Theodor Gipperich, Hans Kirchhoff, Rolf Stodt
  • Patent number: 4505374
    Abstract: Rolled stock running out of a rolling mill is parted into lengths suitable for the cooling bed. Rolled stock cross sections of various sizes are retarded both at approach speeds of more than approximately 20 m/sec and slower, alongside the cooling bed in an approach roller feed bed and then transversely conveyed over the cooling bed. In order to avoid requiring an uneconomically long cooling bed as a result of the sequence times of the lengths of rolled stock, three or more longitudinal braking sections are arranged side by side to enable thin lengths at a high approach speed to be retarded in rapid succession and conveyed across to the cooling bed. Covering means of the braking sections are constructed to provide additional retardation of the lengths, e.g. by blowing air, by lowering brake shoes or by the action of linear electromagnetic motors.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: March 19, 1985
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hugo Beerens, Hugo Feldmann, Theodor Gipperich, Hans Kirchhoff, Siegfried Kusel, Claus G. Schlanzke, Dieter Nobis
  • Patent number: 4363394
    Abstract: Rolled stock is conveyed from two side-by-side rolling mills to two cooling beds. Stock can be conveyed from each mill to either one or the other of the cooling beds. Two swingable rollerway sections are provided in each rolled stock line connecting the mills and the cooling beds. These sections can be swung out to transfer stock from one rolled stock line to the other.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: December 14, 1982
    Assignee: Schloemann-Siemag Aktiengesellschaft
    Inventor: Hans Kirchhoff