Patents by Inventor Stephan WUCHERER

Stephan WUCHERER 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: 11208762
    Abstract: A method for separating fibers using a container, a vacuum pump which is connected to the container volume via a vacuum valve, and a ventilation line with a cross-sectional opening and a valve. The valve can be switched between a closed and open state in a time domain of 19-41 ms and from the open state into the closed state in a time domain of 20 to 45 ms. The method has the steps of filling the container with water and fiber composite, closing the container, mixing the water and the fiber composite using mechanical energy, by stirring, generating kinetic energy in the fiber composite by lowering the container internal pressure to a value between ?700 to ?950 hPa, and equalizing the pressure in the container to generate cavitation in the fiber composite. The pressure equalization taking place within at least onetime domain of 0.001-1 s.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 28, 2021
    Assignee: REPULPING TECHNOLOGY GMBH & CO. KG
    Inventors: Stephan Wucherer, Christian Elsner
  • Publication number: 20200190736
    Abstract: A method for separating fibers using a container, a vacuum pump which is connected to the container volume via a vacuum valve, and a ventilation line with a cross-sectional opening and a valve. The valve can be switched between a closed and open state in a time domain of 19-41 ms and from the open state into the closed state in a time domain of 20 to 45 ms. The method has the steps of filling the container with water and fiber composite, closing the container, mixing the water and the fiber composite using mechanical energy, by stirring, generating kinetic energy in the fiber composite by lowering the container internal pressure to a value between ?700 to ?950 hPa, and equalizing the pressure in the container to generate cavitation in the fiber composite. The pressure equalization taking place within at least onetime domain of 0.001-1 s.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 18, 2020
    Applicant: REPULPING TECHNOLOGY GMBH & CO. KG
    Inventors: Stephan WUCHERER, Christian ELSNER