Patents by Inventor Kenneth M. McGough

Kenneth M. McGough 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).

  • Use of anionic copolymers for enhanced recovery of useful coal and potassium chloride from screen bowl centrifuge
    Patent number: 7189327
    Abstract: A method of enhancing the recovery of useful coal or potassium chloride from screenbowl centrifuge separation operations comprising adding to the screenbowl centrifuge, from about 0.005 lbs active polymer/ton dry solids in centrifuge to about 0.70 lbs active polymer/ton dry solids in centrifuge, of an anionic copolymer, wherein said anionic copolymer is selected from the group comprising copolymers of acrylamide and acrylic acid and the known salts thereof.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: March 13, 2007
    Assignee: Nalco Company
    Inventors: Peter A. Dimas, Kenneth M. McGough
  • Enhanced recovery of useful coal, potassium chloride and borax from screen bowl centrifuge
    Patent number: 7087174
    Abstract: A method of enhancing the recovery of useful coal or potassium chloride or borax from screenbowl centrifuge separation operations comprising adding to the screenbowl centrifuge, from about 0.03 lbs active polymer/ton dry solids in centrifuge to about 0.70 lbs active polymer/ton dry solids in centrifuge, of a cationic terpolymer, wherein said cationic terpolymer is prepared by polymerizing from about 1 to about 99.1 mole percent of one or more cationic monomers, from about 0.1 to about 10 mole percent of one or more hydroxyalkyl(meth)acrylates and from one to about 98.1 mole percent of one or more nonionic monomers.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: August 8, 2006
    Assignee: Nalco Company
    Inventors: Peter A. Dimas, Kenneth M. McGough, Wesley L. Whipple