Patents by Inventor James S Shui

James S Shui 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).

  • Crystalline silica-free diatomaceous earth filter aids and methods of manufacturing the same
    Patent number: 8084392
    Abstract: A method of producing a range of diatomaceous earth filter aids having selectable permeabilities and less than about 1 percent by weight total crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; and milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids. Systems to implement such methods and compositions produced by such methods are also described.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: December 27, 2011
    Assignee: EP Minerals, LLC
    Inventors: Peter E. Lenz, Michael J Nannini, James S Shui
  • CRYSTALLINE SILICA-FREE DIATOMACEOUS EARTH BLENDED FILTER AIDS AND METHODS OF MANUFACTURING THE SAME
    Publication number: 20090181848
    Abstract: A method of producing a range of diatomaceous earth blended filter aids having selectable permeabilities and less than about 1 percent by weight total of crystalline silica and less than about 0.1% by weight total of respirable crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids, and blending the diatomaceous earth with expanded perlite to form a low bulk density and low solubility filter aid.
    Type: Application
    Filed: March 20, 2009
    Publication date: July 16, 2009
    Applicant: EP MINERALS, LLC
    Inventors: Peter E. Lenz, Michael J. Nannini, James S. Shui
  • CRYSTALLINE SILICA-FREE DIATOMACEOUS EARTH FILTER AIDS AND METHODS OF MANUFACTURING THE SAME
    Publication number: 20090011240
    Abstract: A method of producing a range of diatomaceous earth filter aids having selectable permeabilities and less than about 1 percent by weight total crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; and milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids. Systems to implement such methods and compositions produced by such methods are also described.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 8, 2009
    Applicant: EP MINERALS, LLC
    Inventors: Peter E. Lenz, Michael J. Nannini, James S. Shui