Patents by Inventor David George Field

David George Field 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).

  • Fold-off guiding method and device for a folding apparatus
    Patent number: 5807227
    Abstract: The present invention relates to a folder apparatus including a first cylinder for transporting a product and a folding cylinder rotatably engaged with the first cylinder at a nip. A product guiding device is assigned to a transition area between surfaces of the first cylinder and the folding cylinder, the guiding device having a smoothing element which includes different sections of product contacting elements being angled in opposite directions.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: September 15, 1998
    Assignees: Heidelberg Harris Inc., Heidelberger Druckmaschinen AG
    Inventor: David George Field