Patents by Inventor Dietrich Kreuzgruber

Dietrich Kreuzgruber 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).

  • Press for forming sheet metal elements
    Patent number: 4541318
    Abstract: In a press comprising upper and lower turntables for carrying respective sets of upper and lower press tools, each upper press tool is movable to an operating position in which said press tool is adapted to be coupled to a ram. To ensure a free access of the workpiece to the press tools adjacent to the lower press tools, each lower press tool is mounted in the lower turntable to be individually vertically displaceable relative thereto. Only the lower press tool which is in operating position is supported in the frame and the other lower press tools are lowered.
    Type: Grant
    Filed: July 24, 1984
    Date of Patent: September 17, 1985
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventor: Dietrich Kreuzgruber