Patents by Inventor Hartmut Metz

Hartmut Metz 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).

  • Publication number: 20050081490
    Abstract: In order to achieve in a vertical tubular bagging machine (1) an even foil path precise in location, a foil-removing system is suggested, which provides for a secure introduction of the edges (29) of a foil web (3) into a longitudinal sealing device (7) in order to weld a foil tube (5) in its transport direction (8). The foil-removing system has rollers (10) driven by a drive (12), which rollers, viewed in transport direction (8), are provided between the forming shoulder (4) and the longitudinal sealing device (7), and an additional foil-removing means (19) with a drive (20) and a belt (22) rotating around two wheels (21), which belt acts against the foil tube (5) and thus against the fill pipe (6), and which acts at a point of the foil tube (5) where the longitudinal seam (9) is not. The two drives (12, 20) are synchronized with one another.
    Type: Application
    Filed: June 28, 2004
    Publication date: April 21, 2005
    Inventors: Hartmut Metz, Walter Baur
  • Patent number: 5575137
    Abstract: A cross-sealing device for a tubular-bag packaging machine operable with stripping rods moved along the plastic foil tube to be sealed, which stripping rods assure that the sealing surfaces are free of packaging material prior to the sealing task. A drive is provided for the stripping rods which is mechanically robust and makes it possible to adapt the stripping paths on the plastic foil tube to the special requirements. Belt drives are provided for this purpose which are driven independently of the cross-sealing jaws and are controlled by a position controller controlling the position of the stripping rods.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: November 19, 1996
    Assignee: Rovema Verpackungsmaschinen GmbH
    Inventors: Hartmut Metz, Dieter Korzer, Walter Baur