Patents by Inventor Kurt W. Liedtke

Kurt W. Liedtke 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: 4388794
    Abstract: Apparatus for producing discrete blanks from a web of foil or the like is provided, in which the foil or the like are given continuous constrained guidance during the phase between separation of the web until transfer to a packet or packing machine. The web is transported into the system between a first pair of pulling rollers then transferred to a conveyor of two spaced belts. The belts are provided with a series of apertures through which a suction is pulled to hold the transported web. The belts diverge slightly and pull the web at a higher speed than the first pair of rollers so that the web is stretched both lengthwise and transversely. Severance from the web is carried out in at least one initial cut, followed by a main cut, during continuous constrained guidance.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: June 21, 1983
    Assignee: Focke & Pfuhl
    Inventors: Heinz H. Focke, Kurt W. Liedtke
  • Patent number: 4151699
    Abstract: A method of and apparatus for producing discrete blanks from a web of foil or the like lis provided, in which the foil or the like are given continuous constrained guidance during the phase between separation of the web until transfer to a packet or packing machine. Severance from the web is carried out in at least one initial cut, followed by a main cut, during continuous constrained guidance.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: May 1, 1979
    Assignee: Focke & Pfuhl
    Inventors: Heinz H. Focke, Kurt W. Liedtke