Patents by Inventor Josef Skarka

Josef Skarka 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).

  • Apparatus for separating impurities from open-end spinning units
    Patent number: 4499718
    Abstract: Fiber separating device of an open-end spinning unit wherein the wall facing the fiber separating cylinder is provided with an impurity separating duct and with one or more air supply apertures. The air supply apertures are oriented symmetrically with respect to a plane substantially passing through the axis of the impurity separating duct and perpendicular to the axis of the fiber separating cylinder, the axes of said apertures including the same angles with the opposite walls of the impurity separating duct. The fiber separating device of the invention solves the problem of withdrawing impurities from fibrous materials supplied to the fiber separating device of open-end spinning unit, while reducing losses of the fibrous material.
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: February 19, 1985
    Assignee: Vyzkumny ustav bavlnarsky
    Inventors: Jan Junek, Josef Skarka, Frantisek Jaros, Frantisek Hortlik, Kveta Hacova, Vaclav Vobornik, Vladimi Ohlidal, Ludmila Lihtarova