Patents by Inventor Stuart K. Nicol

Stuart K. Nicol 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).

  • Apparatus for the dewatering of coal and mineral slurries
    Patent number: 5956858
    Abstract: Coal or other mineral slurry is dewatered by establishing a bed of the slurry and injecting a gas stream such as air into the bed to establish turbulent flow to strip moisture. This slurry may use particles in the range 0.5 mm to 30 mm with air injected at about 10 m/sec, and suitable novel apparatus includes a centrifuge or a vibratory conveyor with a closed tunnel and transverse air flow for stripping moisture.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: September 28, 1999
    Assignee: Commonwealth Scientific and Industrial Research
    Inventors: Christopher John Veal, Stuart K Nicol, Barry Kenneth Johnston
  • Process for the dewatering of coal and mineral slurries
    Patent number: 5771601
    Abstract: Coal or other mineral slurry is dewatered by establishing a bed of the slurry and injecting a gas stream such as air into the bed to establish turbulent flow to strip moisture. This slurry may use particles in the range 0.5 mm to 30 mm with air injected at about 10 m/sec, and suitable novel apparatus includes a centrifuge or a vibratory conveyor with a closed tunnel and transverse air flow for stripping moisture.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: June 30, 1998
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Christopher John Veal, Stuart K. Nicol, Barry Kenneth Johnston
  • Treatment of coal slurries
    Patent number: 4209301
    Abstract: A process of agglomerating coal from coal fines is disclosed, wherein an aqueous slurry of coal fines is mixed with oil without intensive agitation, and thereafter the resulting coal fines agglomerates are removed from the slurry. The process unexpectedly produces higher selective agglomeration than prior art processes utilizing high shear energy input conditions.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: June 24, 1980
    Assignee: The Broken Hill Proprietary Company Limited
    Inventors: Stuart K. Nicol, Andrew R. Swanson