Patents by Inventor Johannes WAPPENSCHMIDT

Johannes WAPPENSCHMIDT 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).

  • Rotary-piston pump
    Patent number: 10617807
    Abstract: The invention relates to a rotary piston pump, in particular for pumping blood, comprising a piston rotor (1) which has particularly two or three faces when seen in cross-section, which is mounted in a piston chamber (2) and eccentrically rotates, the piston rotor (1) having in its interior a plurality of magnetically interacting elements (4, 4a, 4b), in particular permanent magnets and/or coils, and being driven by the magnetic interaction of these elements (4, 4a, 4b) with at least one moving magnetic field.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: April 14, 2020
    Assignee: RHEINISCH-WESTFAELISCHE-TECHNISCHE HOCHSCHULE AACHEN
    Inventors: Johannes Wappenschmidt, Andreas Goetzenich, Ruediger Autschbach, Ulrich Steinseifer
  • ROTARY-PISTON PUMP
    Publication number: 20170189593
    Abstract: The invention relates to a rotary piston pump, in particular for pumping blood, comprising a piston rotor (1) which has particularly two or three faces when seen in cross-section, which is mounted in a piston chamber (2) and eccentrically rotates, the piston rotor (1) having in its interior a plurality of magnetically interacting elements (4, 4a, 4b), in particular permanent magnets and/or coils, and being driven by the magnetic interaction of these elements (4, 4a, 4b) with at least one moving magnetic field.
    Type: Application
    Filed: July 9, 2015
    Publication date: July 6, 2017
    Inventors: Johannes WAPPENSCHMIDT, Andreas GOETZENICH, Ruediger AUTSCHBACH, Ulrich STEINSEIFER