Patents by Inventor Hans Barthelson

Hans Barthelson 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).

  • System for reception and transport of lime mud from a white liquor filter
    Patent number: 8444851
    Abstract: The system is for the reception and transport of dry lime mud from a continuously operating pressurized filter in a causticization process. A tube valve is used as an outlet from the pressurized process. The tube valve has a minimum length that is twice a diameter of the tube. A column of lime mud can be held within it as a pressure lock. The column of lime mud can be caused to descend through the tube valve by controlling a difference in pressure between an inner surface and an outer surface of the tube such that the diameter of the tube expands essentially uniformly along its length by 5-10% or by at least 4-6 millimeters.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: May 21, 2013
    Assignee: Metso Paper Sweden AB
    Inventors: Soren Kindlund, Michael A. Rowe, Hans Barthelson
  • HOSE VALVE FOR FEEDING FINE GRAINED MATERIAL
    Publication number: 20110001068
    Abstract: The tube valve is for the output of a finely granulated material preferably dry lime mud that maintains a level of dry matter content of 65-90%. The tube valve has an elastic inner tube arranged within a pressure chamber that surrounds the elastic inner tube. A tube valve is used as an outlet from the pressurized process. The tube valve has a minimum length that is twice a diameter of the tube. A column of lime mud can be held within it as a pressure lock. The column of lime mud can be caused to descend through the tube valve by controlling a difference in pressure between an inner surface and an outer surface of the tube such that the diameter of the tube expands essentially uniformly along its length by 5-10% or by at least 4-6 millimeters.
    Type: Application
    Filed: December 4, 2008
    Publication date: January 6, 2011
    Inventors: Soren Kindlund, Michael A. Rowe, Hans Barthelson
  • SYSTEM FOR RECEPTION AND TRANSPORT OF LIME MUD FROM A WHITE LIQUOR FILTER
    Publication number: 20110000834
    Abstract: The system is for the reception and transport of dry lime mud from a continuously operating pressurized filter in a causticization process. A tube valve is used as an outlet from the pressurized process. The tube valve has a minimum length that is twice a diameter of the tube. A column of lime mud can be held within it as a pressure lock. The column of lime mud can be caused to descend through the tube valve by controlling a difference in pressure between an inner surface and an outer surface of the tube such that the diameter of the tube expands essentially uniformly along its length by 5-10% or by at least 4-6 millimeters.
    Type: Application
    Filed: December 4, 2008
    Publication date: January 6, 2011
    Inventors: Soren Kindlund, Michael A. Rowe, Hans Barthelson