Patents by Inventor Alan Frederick North

Alan Frederick North 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).

  • System for removing silicone oil from waste water treatment plant sludge
    Patent number: 6641722
    Abstract: A method of removing silicone oils from waste water generated by a silicones manufacturing plant including the step of centrifuging the waste water to concentrate silicone oil contaminated solids while removing the silicone oils. The silicone oil contaminated solids are then dried in a continuously mixed sludge dryer to remove more silicone oils from the sludge to form a sludge product which comprises at least 10% water and a low silicone oil concentration.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: November 4, 2003
    Assignee: General Electric Company
    Inventors: Amy Rene Freshour, Stephen Lan-Sun Hung, Bang Mo Kim, Mark Allan Moses, Alan Frederick North, Don Royall Houston
  • System and method for removing silicone oil from waste water treatment plant sludge
    Publication number: 20020056681
    Abstract: A method of removing silicone oils from waste water generated by a silicones manufacturing plant including the step of centrifuging the waste water to concentrate silicone oil contaminated solids while removing the silicone oils. The silicone oil contaminated solids are then dried in a continuously mixed sludge dryer to remove more silicone oils from the sludge to form a sludge product which comprises at least 10% water and a low silicone oil concentration.
    Type: Application
    Filed: September 17, 2001
    Publication date: May 16, 2002
    Inventors: Amy Rene Freshour, Stephen Lan-Sun Hung, Bang Mo Kim, Mark Allan Moses, Alan Frederick North, Don Royall Houston
  • System and method for removing silicone oil from waste water treatment plant sludge
    Patent number: 6319406
    Abstract: A method of removing silicone oils from waste water generated by a silicones manufacturing plant including the step of centrifuging the waste water to concentrate silicone oil contaminated solids while removing the silicone oils. The silicone oil contaminated solids are then dried in a continuously mixed sludge dryer to remove more silicone oils from the sludge to form a sludge product which comprises at least 10% water and a low silicone oil concentration.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: November 20, 2001
    Assignee: General Electric Company
    Inventors: Amy Rene Freshour, Stephen Lan-Sun Hung, Bang Mo Kim, Mark Allan Moses, Alan Frederick North, Don Royall Houston