Patents by Inventor Nico G. Markerink

Nico G. Markerink 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 with medium tight shell and venting means
    Patent number: 5435701
    Abstract: A pump (1) includes a pumphouse (2) having an inlet (3) for admitting a medium at a suction side of the pump and an outlet (4) for discharching the medium at a delivery side of the pump. A pumping device is rotatably arranged on an axle (6), the axle being driven by a driver including a rotor and a device for coupling energy to the rotor. A medium tight shell (11) is arranged around the rotor and the axle; and a first canal (18) extends from a first location at a level near or beyond an axial bearing to a second location (24) in the pump where a lower pressure is dominant than at the first location.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: July 25, 1995
    Assignee: Stork Pompen B.V.
    Inventor: Nico G. Markerink