Patents by Inventor Miroslac Stepanek

Miroslac Stepanek 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).

  • Method of and apparatus for producing multicomponent spun-twisted yarns by open-end spinning
    Patent number: 4527384
    Abstract: A single-step stable method of producing spun-twisted yarns. A twist point is located on the frictional surface of a take-off funnel of the spinning rotor. A strand material which forms a component of the final spun-twisted yarn product is exposed, between feed rollers and said twist point, to an appropriate combination of transport effects of a pneumatic field of force and a mechanical field of force. For this purpose, the tube, through which the strand material is supplied, is determined in dependence on the pneumatic conditions prevailing in the spinning rotor.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: July 9, 1985
    Assignee: Vyzkumny ustav bavinarsky
    Inventors: Alois Stejskal, Zdenek Havranek, Miroslac Stepanek, Jan Hrdina, Frantisek Cada, Zelmira Borovcova, Jaroslav Slingr