Patents by Inventor Dietmar Herren

Dietmar Herren 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: 5049054
    Abstract: In a press having an upper punch and lower punch and a tool mount to be inserted into the press and connected to the lower punch via a lower coupling plate and to the upper punch via an upper joining piece, and a framework mounted displaceably on a base plate of the mount and consisting of connecting rods rigidly connecting the lower coupling plate with the matrix holding plate, die carriers being moved relative to the base plate from their filling position downward into the compacting position and from the compacting position into the ejecting position, which corresponds to the filling position (the so-called ejection method), at lease one additional die carrier, like the matrix holding plate, works by the withdrawal method, this die carrier being moved from the filling position downward into the compacting position and from the compacting position downward into the withdrawing position.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: September 17, 1991
    Assignee: Dorst-Maschinen- und Analagenbau, Otto Dorst und Dipl.-Ing. Walter Schlegel GmbH & Co.
    Inventors: Hubert Schaidl, Hermann Good, Roland Fleissner, Josef Schroferle, Dietmar Herren
  • Patent number: 4482307
    Abstract: A press designed for producing true-to-size workpieces from powder material has upper and lower platens, a base plate, a die support plate and a lower stamp, which is moved hydraulically in translation in relation to the base plate and the die plate. The die plate and the base plate are parts of a frame structure using pull-rods and having the die plate and a lower joining plate as parts thereof. The frame structure is joined with the top platen of the press by way of a connection piece, which may be moved in translation in relation to the frame structure in the direction of pressing, whereas the lower platen of the press is joined up with the lower joining plate. To get an even density in the pressed workpieces and to make possible the use of modern electronic control systems the lower stamp of the press is made up of at least two lower stamp parts which are supported on machine parts.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: November 13, 1984
    Assignee: Dorst-Maschinen und Anlagenbau Otto Dorst und Dipl.-Ing. Walter Schlegel _GmbH & Co.
    Inventors: Hubert Schaidl, Dietmar Herren