Patents by Inventor Erich Doell

Erich Doell 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).

  • Changing device in a packaging machine for a storage roller having thereon a foil strip
    Patent number: 5881965
    Abstract: The sleeve 6 of a storage roller 3 is held by two supporting pins 4, 5 on a changing device 1 of a packaging machine. One supporting pin 5 is connected to a drive motor 9 for rotation of the supporting pin 5. The supporting pin 5 can be moved together with the drive motor 9 in axial direction 11 by an adjusting device 10. The exact position of the storage roller 3 or of the foil strip 2 unwound from the storage roller 3 can be measured by a measuring mechanism 28. With the changing device 1, it is possible to exchange or exactly adjust a storage roller 3, or correct the course of the unwound foil strip 2.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: March 16, 1999
    Assignee: Rovema Verpackungsmaschinen GmbH
    Inventors: Erich Doell, Werner Schneider, Walter Baur