Patents by Inventor Walter Dworschak

Walter Dworschak 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 and control device for determining a register error
    Patent number: 7162956
    Abstract: A method and control device for determining a register error, whereby at least one register mark is printed and at least one sensor records the register mark, whereby the sheet edge of the sheet is recorded by the sensor, and the register error is determined from the sensor data and the target data.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: January 16, 2007
    Assignee: Eastman Kodak Company
    Inventors: Dieter Karl-Heinz Dobberstein, Walter Dworschak, Christian Friedrich Engeln, Heiko Hunold, Patrick Metzler, Karlheinz Walter Peter, Rolf Johannes Spilz, Stefan Theden
  • Method and control device for determining a register error
    Publication number: 20060013468
    Abstract: A method and control device for determining a register error, whereby at least one register mark is printed and at least one sensor records the register mark, whereby the sheet edge of the sheet is recorded by the sensor, and the register error is determined from the sensor data and the target data.
    Type: Application
    Filed: August 6, 2003
    Publication date: January 19, 2006
    Inventors: Dieter Dobberstein, Walter Dworschak, Christian Engeln, Heiko Hunold, Patrick Metzler, Karlheinz Peter, Rolf Spilz, Stefan Theden
  • Device for conveying sheets in a printing machine
    Patent number: 6092800
    Abstract: A device for conveying thin workpieces in a machine used in printing technology, which device includes at least one moving conveying element, on whose surface are formed areas of changing charge density, the adherence of the workpiece on the conveying element being supported by electrostatic forces wherein contacts are provided for forming the areas of changing charge density, the contacts touching the conveying element and being connected to at least one voltage source, and an electric current flow being present, via the contacts in the material of the conveying element.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: July 25, 2000
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Christian Compera, Walter Dworschak, Gerhard Bartscher, Patrick Metzler