Patents by Inventor Kent T. Depuydt

Kent T. Depuydt 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).

  • Method and apparatus for remediating wastewater holding areas and the like
    Patent number: 7005064
    Abstract: A method and apparatus for remediating wastewater holding areas and the like includes a closed, foraminous dewatering membrane that is positioned adjacent to the wastewater holding area. Sludge and adjacent water on the bottom of the wastewater holding area are pumped in the form of a sludge slurry into the interior of the dewatering membrane. The water is removed from the sludge slurry by allowing gravitational forces to flow water through the dewatering membrane. The dewatering membrane is then opened, and the dewatered sludge is removed for depositing at an appropriate site.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: February 28, 2006
    Assignee: Infrastructure Alternatives
    Inventors: Robert A. Keller, William J. Cretens, Kent T. Depuydt, Dana J. Trierweiler, Russell D. Johnson, Dean R. Wickoren
  • Method and apparatus for remediating wastewater holding areas and the like
    Patent number: 6835314
    Abstract: A method and apparatus for remediating wastewater holding areas and the like includes a closed, foraminous dewatering membrane that is positioned adjacent to the wastewater holding area. Sludge and adjacent water on the bottom of the wastewater holding area are pumped in the form of a sludge slurry into the interior of the dewatering membrane. The water is removed from the sludge slurry by allowing gravitational forces to flow water through the dewatering membrane. The dewatering membrane is then opened, and the dewatered sludge is removed for depositing at an appropriate site.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: December 28, 2004
    Assignee: Infrastructure Alternatives
    Inventors: Robert A. Keller, William J. Cretens, Kent T. Depuydt, Dana J. Trierweiler, Russell D. Johnson, Dean R. Wickoren
  • METHOD AND APPARATUS FOR REMEDIATING WASTEWATER HOLDING AREAS AND THE LIKE
    Publication number: 20030062319
    Abstract: A method and apparatus for remediating waster water holding areas and the like includes a closed, foraminous dewatering membrane that is positioned adjacent to the wastewater holding area. Sludge and adjacent water on the bottom of the wastewater holding area are pumped in the form of a sludge slurry into the interior of the dewatering membrane. The water is removed from the sludge slurry by allowing gravitational forces to flow water through the dewatering membrane. The dewatering membrane is then opened, and the dewatered sludge is removed for depositing at an appropriate site.
    Type: Application
    Filed: March 8, 2002
    Publication date: April 3, 2003
    Applicant: Infrastructure Alternatives
    Inventors: Robert A. Keller , William J. Cretens , Kent T. Depuydt , Dana J. Trierweiler , Russell D. Johnson , Dean R. Wickoren
  • Control valve with displacement-compensating seal
    Patent number: 5011114
    Abstract: An apparatus for controlling the blowdown slurry from a wet oxidation reactor is disclosed. The device includes a pressure control valve with a valve seat and support assembly which extends beyond the valve body to prevent erosion by the blowdown slurry. The apparatus also includes a displacement-compensating seal between the valve and receiving vessel to allow for thermal expansion and contraction during the blowdown cycle while maintaining the integrity of the seal.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: April 30, 1991
    Assignee: Zimpro Passavant Environmental Systems, Inc.
    Inventors: Kent T. Depuydt, Joseph S. Tikalsky