Patents by Inventor Wilfried Kuhn

Wilfried Kuhn 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).

  • Printing machine construction
    Patent number: 4029009
    Abstract: A first and a second printing roller are provided, each of which prints a different side of a sheet. A transfer roller is located between these printing rollers and forms tangent points with the same.
    Type: Grant
    Filed: July 17, 1975
    Date of Patent: June 14, 1977
    Assignee: VEB Polygraph Leipzig Kombinat fur Polygraphische Maschinen und Ausrustungen
    Inventors: Wilfried Kuhn, Wilfried Micklausch
  • Sheet transfer system for a printing machine
    Patent number: 3992993
    Abstract: A printing machine has an upstream and a downstream printing station each provided with a printing roller. A sheet transfer roller is located between the stations for transferring sheets from the printing roller of the upstream station to that of the downstream station; it defines a tangent point with the printing roller of the upstream station. A first and a second mechanical gripper system are mounted on the transfer roller for swinging movement towards and away from one another. A suction gripper system is also provided on the transfer roller for engaging a trailing edge portion of a sheet on the periphery of the printing roller of the upsteam station, prior to arrival of the trailing edge of the sheet at the tangent point, and for lifting the trailing portion off the periphery.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: November 23, 1976
    Assignee: VEB Polygraph Leipzig Kombinat fur Polygraphische Maschinen und Ausrustungen
    Inventors: Wilfried Kuhn, Horst Krause