Patents by Inventor Albert Perztsch

Albert Perztsch 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).

  • Cutting tool for longitudinally cutting continuous sheets of film
    Patent number: 3977285
    Abstract: A cutting tool consists of circular, rotatably mounted upper and lower blades, the upper blade extending past the periphery of the cutting shoulder of the lower blade and bearing resiliently against it. The thickness of the cutting shoulder of the lower blade is less than the distance of the said extending of the upper blade, and the material hardness of the upper blade is greater than that of the lower blade.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: August 31, 1976
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Albert Perztsch, Anton Riedel, Werner Wilke, Michael Mehltretter