Patents by Inventor Hartmut Kosche

Hartmut Kosche 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).

  • Folding apparatus for preparing a zigzag web of paper
    Patent number: 4332583
    Abstract: A folding apparatus for preparing a zigzag web of paper or paper pulp or sues or similar material for the production of paper handkerchiefs, paper serviettes or similar articles, has two oppositely rotating folding rolls each having a folding stick and at least one row of suction orifices for temporary retention of the web. Each roll also has two guard guides disposed before the folding stick and two guides disposed before the suction orifice row.
    Type: Grant
    Filed: March 4, 1980
    Date of Patent: June 1, 1982
    Assignee: Winkler and Dunnebier Maschinenfabrik und Eisengiesserei GmbH & Co. KG
    Inventors: Kurt Stemmler, Hartmut Kosche