Patents by Inventor Heinz Dobriwolski

Heinz Dobriwolski 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).

  • Apparatus for the in-register positioning of a cutting plate on a cutting cylinder, preferably in rotary printing machines
    Patent number: 5481969
    Abstract: Apparatus for assuring the in-register positioning of a cutting plate on a cutting cylinder, preferably a magnetic cylinder in a rotary printing machine. The apparatus comprises a contact plate which is arranged tangentially to the cutting cylinder. The contact plate is formed with a slot running axially parallel to the cylinder for the purpose of receiving the cutting plate, the slot having an edge which serves as a stop. An axially parallel measuring bar is positioned along the cylinder length and is parallel to the contact plate. Extending around the circumference of the cutting cylinder is a second measuring bar which crosses the first measuring bar.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: January 9, 1996
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Heinrich Beck, Heinz Dobriwolski