Patents by Inventor Achim Kreher

Achim Kreher 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).

  • Method of processing sheet-like workpieces in a strip-shaped manner
    Patent number: 6675681
    Abstract: The invention relates to a method for machining platelike workpieces in a striated manner, whereby, in work steps, the material plate is machined by a controlled linear unit in a striated manner and always in the same X-axis direction. The invention also relates to a device for carrying out said method.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: January 13, 2004
    Assignee: Gebrueder Leonhardt GmbH & Co. KG
    Inventors: Karlheinz Beyrich, Achim Kreher, Michael Georgi
  • Apparatus for sheet-metal plate processing to be employed at inclined C-frame presses
    Patent number: 6079308
    Abstract: An apparatus is provided for a plate processing at inclined C-frame presses for an automatic cutting of tin-can covers and lids of tin cans and the like from sheet-metal plates with a piston plunger of a press moving up and down, where the sheet-metal plate is led step-by-step past under the piston plunger of the press. The apparatus includes a u-shape-formed frame 1. The longitudinal traverses 2 are in each case connected through a c-shaped bracing 3 to a C-shaped press frame 4.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: June 27, 2000
    Assignee: Gebruder Leonhardt Im-Und Export GmbH & Co. KG
    Inventors: Karlheinz Beyrich, Uwe Hattwig, Frieder Kraus, Achim Kreher, Wilfred Lang