Patents Assigned to Josef Uhlmann Maschinenfabrik GbmH & Co. KG
  • Patent number: 4894977
    Abstract: The invention is related to a machine for the production and separation of packages, which packages are formed through deep-drawing from a foil strip transported through a forming station and a separating station of the machine and are then punched out. The foil strip is heated prior to deep-drawing and undergoes a cooling in its travel between the forming station and the separating station. When a transport interruption occurs, the still warm foil strip is stretched between the forming station and the separating station so much, and optionally the size of the elongation is controlled timewise in such a manner that, when the machine is restarted, the foil strip, in spite of the increased cooling which has taken place in the meantime, does maintain the same length as the still warm foil strip at the beginning of the machine interruption.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: January 23, 1990
    Assignee: Josef Uhlmann Maschinenfabrik GbmH & Co. KG
    Inventors: Herbert Rittinger, Dieter Janek, Peter Auer, Rudolf Scheffold