Patents by Inventor Gordon Fattmann

Gordon Fattmann 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).

  • Method and an apparatus for adjusting an extrusion die in an extruder
    Patent number: 6838025
    Abstract: The invention relates to a method for adjusting an extrusion die in an extruder by recording at least one master flow curve (40, 41) in a first extruder to which the extrusion die is optimized, in which curve the volume flow is entered over the pressure, which master flow curve (40, 41) is obtained in a measuring channel (20) which branches off in the extruder, the extrusion die or in any interposed adapter part from the flow channel (4), and the repeated recording of flow curves (30, 31) in the same or similar measuring channels (20) as in the first extruder after the assembly of the extrusion tool in the extruder to be checked and adjusted, and the purposeful change of process parameters for such a time until the flow curves (30, 31) correspond to the master flow curves (40, 41) within predetermined tolerance ranges.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: January 4, 2005
    Assignee: Technoplast Kunststofftechnik GmbH
    Inventors: Frank Dorninger, Gordon Fattmann, Oliver Krüll, Andreas Limper, Meinhard Schwaiger, Stefan Seibel
  • Method and an apparatus for adjusting an extrusion die in an extruder
    Publication number: 20020185765
    Abstract: The invention relates to a method for adjusting an extrusion die in an extruder by recording at least one master flow curve (40, 41) in a first extruder to which the extrusion die is optimized, in which curve the volume flow is entered over the pressure, which master flow curve (40, 41) is obtained in a measuring channel (20) which branches off in the extruder, the extrusion die or in any interposed adapter part from the flow channel (4), and the repeated recording of flow curves (30, 31) in the same or similar measuring channels (20) as in the first extruder after the assembly of the extrusion tool in the extruder to be checked and adjusted, and the purposeful change of process parameters for such a time until the flow curves (30, 31) correspond to the master flow curves (40, 41) within predetermined tolerance ranges.
    Type: Application
    Filed: May 8, 2002
    Publication date: December 12, 2002
    Inventors: Frank Dorninger, Gordon Fattmann, Oliver Krull, Andreas Limper, Meinhard Schwaiger, Stefan Seibel