Patents by Inventor MICHAEL ZELLNER

MICHAEL ZELLNER 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 for changing printing plates
    Patent number: 8857335
    Abstract: A method and an apparatus for changing a printing plate on a printing press, include feeding the printing plate to a withdrawal chute of a plate changing apparatus by rotating the plate cylinder backward. Drivable transport rollers grip the printing plate and pull the latter out of a previously opened clamping device for the leading edge of the printing plate during the plate cylinder rotation, without the plate cylinder having to be stopped.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: October 14, 2014
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rüdiger Böhm, Martin Greive, Jochen Körner, Dirk Schönmann, Michael Zellner
  • METHOD AND APPARATUS FOR CHANGING PRINTING PLATES
    Publication number: 20130192485
    Abstract: A method and an apparatus for changing a printing plate on a printing press, include feeding the printing plate to a withdrawal chute of a plate changing apparatus by rotating the plate cylinder backward. Drivable transport rollers grip the printing plate and pull the latter out of a previously opened clamping device for the leading edge of the printing plate during the plate cylinder rotation, without the plate cylinder having to be stopped.
    Type: Application
    Filed: August 24, 2012
    Publication date: August 1, 2013
    Applicant: HEIDELBERGER DRUCKMASCHINEN AG
    Inventors: RÜDIGER BÖHM, MARTIN GRIEVE, JOCHEN KÖRNER, DIRK SCHÖNMANN, MICHAEL ZELLNER