Patents by Inventor Michael Rexhaeuser

Michael Rexhaeuser 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).

  • Regulatable coolant pump
    Patent number: 8297942
    Abstract: A controllable coolant pump for internal combustion engines is driven by a belt pulley. The controllable coolant pump has a hydraulically actuated gate valve connected to a ring piston. An axial piston pump is disposed in the pump housing and is driven and “operated” by means of a swashplate having a suction groove and disposed on the back side of the flywheel. The “pumped volume flow” of the pump is controlled in a defined manner by means of a solenoid valve such that precise displacement of the hydraulically actuated gate valve is ensured.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: October 30, 2012
    Assignee: Geraete- und Pumpenbau GmbH Dr. Eugen Schmidt
    Inventors: Eugen Schmidt, Franz Pawellek, Eberhard Geissel, Dirk Hagen, Michael Rexhaeuser
  • REGULATABLE COOLANT PUMP
    Publication number: 20100284832
    Abstract: The invention relates to a controllable coolant pump driven by a belt pulley for internal combustion engines.
    Type: Application
    Filed: May 27, 2009
    Publication date: November 11, 2010
    Inventors: Eugen Schmidt, Franz Pawellek, Eberhard Geissel, Dirk Hagen, Michael Rexhaeuser