Patents by Inventor Hermann Ambuhl

Hermann Ambuhl 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).

  • Sheet feeder system and method for individually separating sheets
    Patent number: 5915682
    Abstract: A sheet feeder system for a sheet-fed printing press includes a device for causing a sheet pile to sag at least partly in at least an upper region thereof, and at least two contact elements disposed in mutually spaced-apart relationship on an upper side of the sheet pile and having respective contact surfaces for pressing against the upper side of the sheet pile at least partly or temporarily, at least one of the contact elements being drivable so as to move the respective contact surfaces pressing against the upper side of the sheet pile towards and away from one another, respectively, for forming an interspace between the uppermost sheet of the sheet pile and a sheet immediately therebelow, and a method for individually separating sheets.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: June 29, 1999
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Hermann Ambuhl, Urs Fluhmann, Martin Greive, Bernd Hermann, Hans Johr, Peter Lehmann, Rudolf Luthi