Patents by Inventor Dietmar Kaden

Dietmar Kaden 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: 7032738
    Abstract: The invention relates to a device for returning machined workpieces from the delivery side of a first machining unit to the feeding side of the first or of another machining unit. The inventive device comprises the following: a transfer device (1) for transferring the machined workpieces to the delivery side of the first machining unit; a lifting device for lifting the workpieces, which are delivered by the transfer unit, into a return position located above the transfer unit, and; a return device (2) for conveying the workpieces, which are delivered by the lifting device, back to the feeding side of the first or the other machining unit. The transfer device (1) comprises a transfer table with interspaced first supporting elements (4) for the workpieces. The lifting device comprises at least one lifting table (3, 3?, 3?) that, in turn, has interspaced second support elements (5), which can be upwardly guid through between the first support elements (4) of the transfer table.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: April 25, 2006
    Assignee: Ligmatech Automationssysteme GmbH
    Inventors: Bodo Tönnigs, Dietmar Kaden
  • Publication number: 20040168884
    Abstract: The invention relates to a device for returning machined workpieces from the delivery side of a first machining unit to the feeding side of the first or of another machining unit. The inventive device comprises the following: a transfer device (1) for transferring the machined workpieces to the delivery side of the first machining unit; a lifting device for lifting the workpieces, which are delivered by the transfer unit, into a return position located above the transfer unit, and; a return device (2) for conveying the workpieces, which are delivered by the lifting device, back to the feeding side of the first or the other machining unit. The transfer device (1) comprises a transfer table with interspaced first supporting elements (4) for the workpieces.
    Type: Application
    Filed: April 12, 2004
    Publication date: September 2, 2004
    Inventors: Bodo Tonnigs, Dietmar Kaden
  • Patent number: 6607069
    Abstract: The invention relates to a mechanism for returning processed work pieces (7) from the output side to the loading side of a processing unit, which mechanism has a transfer mechanism (1) to transfer the work pieces (7) at the output side of the processing unit, a return mechanism (2) for transporting work pieces (7) delivered by the transfer mechanism (1) back to the loading side of the processing unit or to a further processing unit, and a lifting mechanism to lift the work pieces (7) to a return position located above the output position, whereby the lifting mechanism is located between the transfer mechanism (1) and the return mechanism (2) and has a lifting platform (3), with the lifting mechanism having a crank drive (4), by means of which the lifting platform (3) can be raised and lowered.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: August 19, 2003
    Assignee: Ligmatech Automationssysteme GmbH
    Inventors: Bodo Tönnigs, Dietmar Kaden
  • Publication number: 20020195312
    Abstract: The invention relates to a mechanism for returning processed work pieces (7) from the output side to the loading side of a processing unit, which mechanism has a transfer mechanism (1) to transfer the work pieces (7) at the output side of the processing unit, a return mechanism (2) for transporting work pieces (7) delivered by the transfer mechanism (1) back to the loading side of the processing unit or to a further processing unit, and a lifting mechanism to lift the work pieces (7) to a return position located above the output position, whereby the lifting mechanism is located between the transfer mechanism (1) and the return mechanism (2) and has a lifting platform (3), with the lifting mechanism having a crank drive (4), by means of which the lifting platform (3) can be raised and lowered.
    Type: Application
    Filed: May 9, 2002
    Publication date: December 26, 2002
    Inventors: Bodo Tonnigs, Dietmar Kaden
  • Patent number: 5700128
    Abstract: A feed and stacking device for slab-shaped workpieces has a rigid frame which is pivotally mounted on a base stand for movement between a horizontal position and a raised position. A support bar is movable along the length of the frame and carries a plurality of vacuum operated pick-up devices for transferring a workpiece from a stack to a processing device or vice versa.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: December 23, 1997
    Assignee: Ligmatech Maschinenbau GmbH
    Inventors: Bodo Tonnigs, Dietmar Kaden