Patents by Inventor André Haubry

André Haubry 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).

  • Quick static decanter for prethickening water treatment sludge, and plant including such a decanter
    Patent number: 9011677
    Abstract: The invention relates to a static decanter (D) for prethickening liquid sludge in a water treatment plant, in particular wastewater, comprising an inclined bottom (8), the decanter being provided with a liquid sludge supply pump (13), a device for injecting a polymer in the liquid sludge, an overspill discharge (23) and a pump (26) for extracting the prethickened sludge from the decanter. The decanter further includes a means for accelerating the sludge decantation, a means (M) for adjusting the concentration of suspended material in the prethickened sludge at the outlet, and capable of maintaining the concentration of the prethickened sludge extracted from the decanter at a substantially constant level despite the concentration variations at the inlet, and a means (M3) for adjusting the level of the sludge blanket (V) and capable of maintaining said level at the lowest possible level.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: April 21, 2015
    Assignee: Degremont
    Inventors: Patrick Descamps, Claude Prevot, André Haubry
  • QUICK STATIC DECANTER FOR PRETHICKENING WATER TREATMENT SLUDGE, AND PLANT INCLUDING SUCH A DECANTER
    Publication number: 20110272346
    Abstract: The invention relates to a static decanter (D) for prethickening liquid sludge in a water treatment plant, in particular wastewater, comprising an inclined bottom (8), the decanter being provided with a liquid sludge supply pump (13), a device for injecting a polymer in the liquid sludge, an overspill discharge (23) and a pump (26) for extracting the prethickened sludge from the decanter. The decanter further includes a means for accelerating the sludge decantation, a means (M) for adjusting the concentration of suspended material in the prethickened sludge at the outlet, and capable of maintaining the concentration of the prethickened sludge extracted from the decanter at a substantially constant level despite the concentration variations at the inlet, and a means (M3) for adjusting the level of the sludge blanket (V) and capable of maintaining said level at the lowest possible level.
    Type: Application
    Filed: December 23, 2009
    Publication date: November 10, 2011
    Applicant: Degremont
    Inventors: Patrick Descamps, Claude Prevot, André Haubry
  • Method and device for purifying waste water comprising an additional sludge treatment by ozonation
    Patent number: 6337020
    Abstract: Method for purifying waste water, whereby the waste water is subjected to a biological treatment producing sludge, part of this sludge being recycled towards the biological treatment while being subjected to ozonation combined with mechanical stirring. A mechanical stirring energy is brought in to attack the walls of the microorganisms.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: January 8, 2002
    Assignee: Societe Degremont
    Inventors: Eric Thieblin, Roger Pujol, André Haubry