Patents by Inventor David Chezaud

David Chezaud 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).

  • Centrifuge machine having an improved discharge system
    Patent number: 10166551
    Abstract: In a centrifugal machine, collecting chambers, which are in a rotary bowl allocated to centrifugal separation of at least two phases, include a discharge port that can be opened or closed as desired by pistons, movement of which is controlled from outside by a reduced-friction system. Drawing volume is adjustable and proportional to volume of a transverse aperture in the pistons, the ports and the openings of the collecting chambers being offset. The machine enables pseudo-continuous drawing which makes it possible to maintain a continuous supply. The drawing volume, composition of the drawn product, and compactness thereof, in a case of a near-solid phase, are controlled.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: January 1, 2019
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, FLOWERSEP
    Inventors: Jean-Pierre Feraud, David Chezaud, Joel Robin, Tojonirina Randriamanantena
  • Centrifugal separator with cones divided into angular sectors separated by annular gaps
    Patent number: 10092909
    Abstract: The rotary bowl (1) of this centrifugal separator is lined with conical structures divided into sectors (7) separated by angularly offset gaps (9) so as to promote a regular spiral fluid flow therein, which is laminar and enhances separation efficiency significantly: in the case of two-phase or three-phase suspensions, a “cake” is obtained on the side wall (8). A scraper (15) rotating at a slightly different speed may be added to enable simultaneously routing of the solid cake to the outlet and continuous processing.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: October 9, 2018
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, FLOWERSEP
    Inventors: David Chezaud, Jean-Pierre Feraud, Joël Robin, Tojonirinia Randriamanantena
  • CENTRIFUGAL MACHINE HAVING AN IMPROVED DISCHARGE SYSTEM
    Publication number: 20170173597
    Abstract: In a centrifugal machine, collecting chambers, which are in a rotary bowl allocated to centrifugal separation of at least two phases, include a discharge port that can be opened or closed as desired by pistons, movement of which is controlled from outside by a reduced-friction system. Drawing volume is adjustable and proportional to volume of a transverse aperture in the pistons, the ports and the openings of the collecting chambers being offset. The machine enables pseudo-continuous drawing which makes it possible to maintain a continuous supply. The drawing volume, composition of the drawn product, and compactness thereof, in a case of a near-solid phase, are controlled.
    Type: Application
    Filed: March 26, 2015
    Publication date: June 22, 2017
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, FLOWERSEP
    Inventors: Jean-Pierre FERAUD, David CHEZAUD, Joel ROBIN, Tojonirina RANDRIAMANANTENA
  • LAMINAR-FLOW CENTRIFUGAL SEPARATOR
    Publication number: 20150148213
    Abstract: The rotary bowl (1) of this centrifugal separator is lined with conical structures divided into sectors (7) separated by angularly offset gaps (9) so as to promote a regular spiral fluid flow therein, which is laminar and enhances separation efficiency significantly: in the case of two-phase or three-phase suspensions, a “cake” is obtained on the side wall (8). A scraper (15) rotating at a slightly different speed may be added to enable simultaneously routing of the solid cake to the outlet and continuous processing.
    Type: Application
    Filed: June 27, 2013
    Publication date: May 28, 2015
    Inventors: David Chezaud, Jean-Pierre Feraud, Joël Robin, Tojonirinia Randriamanantena