Patents by Inventor Klaus-Rainer Baldner

Klaus-Rainer Baldner 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: 4788842
    Abstract: The invention relates to a method and apparatus for open-die forging of workpieces in forging presses at high forging temperatures, more particularly steel billets or ferrous alloy billets between about 800 and 1250 degrees Celsius. In conventional open-die forging it is often not possible to complete the forging process in a single heat, and the workpiece must therefore be reheated. Also, with direct contact between workpiece and tool, cracks occur, particularly in the vicinity of bulges, the prevention or straightening of which requires repeated transverse hammer- or pressure-forging, so lengthening the cooling time. The total energy consumption for deformation and heating of the workpieces is therefore relatively high.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: December 6, 1988
    Assignee: SMS Hasenclever Maschinenfabrik GmbH
    Inventors: Reiner Kopp, Klaus-Rainer Baldner, Paul-Josef Nieschwitz