Patents by Inventor Scott Lewis Barham

Scott Lewis Barham 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).

  • Rheology modification of settled solids in mineral processing
    Patent number: 6365116
    Abstract: The present invention comprises a method for reducing the viscosity of the settled mud or underflow of a raked thickener thereby reducing the torque necessary to move the rake blade through the settled mud. The method includes the step of delivering a viscosity modifier to the settled mud and in front of the rake blade by pumping the viscosity modifier down the rake arm to an area in front of the rake blade. The method also includes an improved rake mechanism that includes a means for delivering viscosity modifier to the settled mud and in front of the rake blade. The present invention also includes a method for increasing the rate of consolidation of flocculated solids in a slurry.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: April 2, 2002
    Assignee: Nalco Chemical Company
    Inventors: Scott Lewis Barham, Raymond Leslie Henderson
  • Rheology modification of settled solids in mineral processing
    Patent number: 6231768
    Abstract: The present invention comprises a method for reducing the viscosity of the settled mud or underflow of a raked thickener thereby reducing the torque necessary to move the rake blade through the settled mud. The method includes the step of delivering a viscosity modifier to the settled mud and in front of the rake blade by pumping the viscosity modifier down the rake arm to an area in front of the rake blade. The method also includes an improved rake mechanism that includes a means for delivering viscosity modifier to the settled mud and in front of the rake blade. The present invention also includes a method for increasing the rate of consolidation of flocculated solids in a slurry.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: May 15, 2001
    Assignee: Nalco Chemical Company
    Inventors: Scott Lewis Barham, Raymond Leslie Henderson