Patents by Inventor David MARET

David MARET 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).

  • Equipment for injecting a gas into a cesspool
    Patent number: 10233101
    Abstract: A floating equipment, for injection of a gas into liquid effluents or waste water, and more particularly of a gas rich in oxygen into a basin from the surface, including the following elements: a driving device, intended to be disposed over the liquid, provided with a vertical output shaft (8), equipped at its end with a propeller (6) immersed in the liquid a pre-mixing device (5) comprising an injection device (7) positioned above or below a mobile aerator (9) with inclined blades, the propeller being situated at the end of the shaft, under the pre-mixing reactor.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: March 19, 2019
    Assignees: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploration des Procédés Georges Claude, Milton Roy Mixing
    Inventors: Guillaume Beaudouin, Robert Briend, Ulrich Butz, Philippe Campo, Frédéric Savreux, David Maret, Patrice Cognart
  • EQUIPMENT FOR INJECTING A GAS INTO A CESSPOOL
    Publication number: 20170305771
    Abstract: A floating equipment, for injection of a gas into liquid effluents or waste water, and more particularly of a gas rich in oxygen into a basin from the surface, comprising the following elements: a driving device, intended to be disposed over the liquid, provided with a vertical output shaft (8), equipped at its end with a propeller (6) immersed in the liquid a pre-mixing device (5) comprising an injection device (7) positioned above or below a mobile aerator (9) with inclined blades, the propeller being situated at the end of the shaft, under the pre-mixing reactor.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Inventors: Guillaume BEAUDOUIN, Robert BRIEND, Ulrich BUTZ, Philippe CAMPO, Frédéric SAVREUX, David MARET, Patrice COGNART
  • Equipment for injecting a gas into a cesspool
    Patent number: 9731988
    Abstract: The invention relates to floating equipment, for injection of a gas into liquid effluents or waste water, and more particularly of a gas rich in oxygen into a basin from the surface. The floating equipment has the following elements: a driving device, intended to be disposed over the liquid, provided with a vertical output shaft (8), equipped at its end with a propeller (6) immersed in the liquid; a pre-mixing device (5) comprising an injection device (7) positioned above or below a mobile aerator (9) with inclined blades, the propeller being situated at the end of the shaft, under the pre-mixing reactor.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: August 15, 2017
    Assignees: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Milton Roy Mixing
    Inventors: Guillaume Beaudouin, Robert Briend, Ulrich Butz, Philippe Campo, Frédéric Savreux, David Maret, Patrice Cognart
  • EQUIPMENT FOR INJECTING A GAS INTO A CESSPOOL
    Publication number: 20160060150
    Abstract: Floating equipment, for injection of a gas into liquid effluents or waste water, and more particularly of a gas rich in oxygen into a basin from the surface, comprising the following elements: a driving device, intended to be disposed over the liquid, provided with a vertical output shaft (8), equipped at its end with a propeller (6) immersed in the liquid; a pre-mixing device (5) comprising an injection device (7) positioned above or below a mobile aerator (9) with inclined blades, the propeller being situated at the end of the shaft, under the pre-mixing reactor.
    Type: Application
    Filed: May 16, 2012
    Publication date: March 3, 2016
    Applicants: Milton Roy Mixing, L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Guillaume BEAUDOUIN, Robert BRIEND, Ulrich BUTZ, Philippe CAMPO, Frédéric SAVREUX, David MARET, Patrice COGNART