Patents by Inventor Martina Vettermann

Martina Vettermann 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).

  • Patent number: 5988633
    Abstract: A guiding device for a freshly printed sheet has a sheet-guiding surface, which is located at a distance from an imaginary conveying surface. The sheet has a leading edge, which sweeps over the imaginary conveying surface along a sheet transport direction perpendicular to the leading edge of the sheet. The sheet-guiding surface is formed on a guide-plate arrangement and has blast-air openings. The sheet-guiding surface includes blast-air nozzles of a first nozzle configuration and of at least a second nozzle configuration. The blast-air nozzles of the first nozzle configuration produce air-jets that sweep over the sheets and are aligned with respect to the sheet transport direction. The blast-air nozzles of the second nozzle configuration produce rotational flows sweeping over the sheets.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: November 23, 1999
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Manfred Henn, Werner Kaul, Martina Vettermann