Patents by Inventor Johann Hennig Schreuder

Johann Hennig Schreuder 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).

  • Pump or turbine drive unit comprising such a pump or turbine and outboard motor
    Patent number: 7632061
    Abstract: A pump or turbine is disclosed which includes a housing provided with at least one chamber, a rotor, which is rotatably mounted on a shaft in the chamber, an inlet, which communicates with the chamber at least at the location of the shaft, and an outlet channel, which communicates with the chamber at least at the periphery of the rotor. The pump or turbine moreover comprises at least one bypass channel, a first end of which opens into the outlet channel of the pump and a second end of which forms an inlet. The bypass channel may be used for increasing the propelling force or for pumping slurries, for example.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: December 15, 2009
    Assignee: Tendris Solutions B.V.
    Inventors: Taco Wijnand Neeb, Johann Hennig Schreuder