Patents by Inventor Ying Bin He

Ying Bin He 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).

  • Bimodal dense medium for fine particles separation in a dense medium cyclone
    Patent number: 5819945
    Abstract: The present invention provides a method for separation of fine particles in a bimodal (two component) dense medium. In accordance with the present invention, the dense medium comprises ferromagnetic particles that have a relative density range from about 4.0 to 7.0 suspended in water and are characterized by a bimodal size distribution. Such a medium exhibits high stability and favourable rheological properties. The use of such a bimodal magnetite dense medium in cleaning fine coal in a dense medium cyclone or dynamic dense medium separator results in optimum separation efficiency when the medium contains approximately 20-40% fine and 60-80% coarse magnetite, and when the size ratio of coarse-to-fine magnetite is in the range of 5 to 10.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: October 13, 1998
    Assignee: University of British Columbia
    Inventors: Janusz S. Laskowski, Ying Bin He