Patents by Inventor Mathieu GERARD

Mathieu GERARD 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).

  • Patent number: 12584662
    Abstract: A heat exchanger comprising at least two substrates made of electro-caloric and/or pyroelectric material and stacked one on the other so as to form between the at least two substrates and at least one channel for a fluid; at least two electrodes at two opposed ends of the at least two substrates; a housing enclosing the stack of the at least two substrates and the at least two electrodes, and provided with at least one fluid connecting port; wherein the housing is made of a heat shrinkable flexible tube that is shrunk onto the stack of the at least two electrodes and forming the at least one fluid connecting port.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: March 24, 2026
    Assignee: LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (LIST)
    Inventors: Emmanuel Defay, Mathieu Gerard, Alvar Torelló Massana
  • Patent number: 12287229
    Abstract: An aspect of the present invention pertains to a method for determining the volumetric flow rate of a compressible fluid flow flowing through a volume flowmeter having a flow inlet, a wheel downstream of the flow inlet and a constriction downstream of the flow inlet and upstream of the wheel, the compressible fluid flowing through the flow inlet and actuating the wheel. The method comprises measuring the rotational speed of the wheel and determining the permanent pressure loss across the wheel based on the measured rotational speed. The method further comprises measuring the fluid pressure of the compressible fluid flow at the flow inlet and determining whether the compressible fluid flow in the volume flowmeter is in the subsonic or in the supersonic regime based on the determined permanent pressure loss and the measured fluid pressure.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: April 29, 2025
    Assignee: LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jérôme Polesel, Mathieu Gerard
  • Publication number: 20250075796
    Abstract: A connector for a process tube, comprising an annular body; an engagement bore formed in the annular body, for receiving an end of the process tube; a sealing groove formed in the engagement bore, for receiving at least two annular gaskets for contacting the end of the process tube; wherein the annular body comprises a sealing port fluidly connected with the sealing groove so as to allow applying a gas pressure in the sealing groove between the at least two annular gaskets.
    Type: Application
    Filed: December 29, 2022
    Publication date: March 6, 2025
    Inventors: Didier ARL, Olivier BLANCHARD, François NEUILLY, Pierre-Emmanuel PONCET, Mathieu GERARD
  • Patent number: 12123389
    Abstract: A system configured for producing electric power from sea waves. The system includes a buoyant body; an electric generator including an input shaft adapted to rotate with respect to the buoyant body; a first arm coupled to the electric generator; a second arm; and a pivot joint rotatably joining the second arm to the arm. The pivot joint is at a distance, along the first arm, from the input shaft. The first arm connects the second arm to the generator. The tandem arms form a double pendulum system powering an autonomous floating sea analysing station.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: October 22, 2024
    Assignee: LUXEMOBURG INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jérôme Polesel, Bruno Soares, Mathieu Gerard
  • Publication number: 20230407834
    Abstract: A system configured for producing electric power from sea waves. The system includes a buoyant body; an electric generator including an input shaft adapted to rotate with respect to the buoyant body; a first arm coupled to the electric generator; a second arm; and a pivot joint rotatably joining the second arm to the first arm, said arm. The pivot joint is at a distance, along the first arm, from the input shaft. The first arm connects the second arm to the generator. The tandem arms form a double pendulum system powering an autonomous floating sea analysing station.
    Type: Application
    Filed: October 13, 2021
    Publication date: December 21, 2023
    Inventors: Jérôme Polesel, Bruno Soares, Mathieu Gerard
  • Patent number: 11770058
    Abstract: An electric generator having a rotor with permanent magnets, configured for rotating about a rotation axis; a stator having at least one magnetic yoke with arms extending axially inside or outside of the rotor so as to be adjacent to a radial inner or outer side, respectively, of the rotor; wherein the arms of the at least one magnetic yoke are circumferentially distributed so as to form a slot between each pair of adjacent arms, each slot and each arm showing a width. The widths of the arms and/or the widths of the slots have different values distributed along the circumference. The invention is also directed to a valve having the electric generator equipped with a turbine wheel for being driven by a flow of gas in the valve.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: September 26, 2023
    Assignees: Luxembourg Institute of Science and Technology (LIST), Rotarex S.A.
    Inventors: Jérôme Polesel, Mathieu Gerard, Mohamed El Hachemi, Abdelmoumin Allioua
  • Patent number: 11756770
    Abstract: A post-discharge plasma coating device for a wired substrate comprising an inner tubular electrode on an inner tubular wall for receiving the substrate and a precursor moving axially in a working direction; an outer tubular electrode coaxial with, and surrounding, the inner tubular electrode. The inner and outer electrodes are configured to be supplied with an electrical power source for producing a plasma when a plasma gas is supplied between the electrodes and is thereby excited, the plasma excited gas flowing axially in the working direction and reacting with the precursor in a coating area at the end of the inner tubular wall in the direction. The inner tubular wall extends axially towards the coating area at least until, in various instances beyond, the end of the outer electrode, in the working direction and at least one dielectric tubular wall extends axially between the inner tubular electrode and the outer tubular electrode.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: September 12, 2023
    Assignee: Luxembourg Institute of Science and Technology (LIST)
    Inventors: Simon Bulou, Patrick Choquet, Thomas Gaulain, Mathieu Gerard
  • Patent number: 11728708
    Abstract: An electric generator comprising a rotor with permanent magnets, configured for rotating about a rotation axis; at least one magnetic yoke with at least two arms extending axially inside or outside of the rotor so as to be adjacent to the radial inner or outer side, respectively, of the rotor; wherein the permanent magnets are arranged according to an Halbach array so as to maximize the magnetic field on the radial side of the rotor adjacent to the arms of the at least one yoke. Also, a valve for gas cylinder, equipped with a corresponding electric generator.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: August 15, 2023
    Assignees: LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (LIST), ROTAREX S.A.
    Inventors: Mathieu Gerard, Jérôme Polesel Maris
  • Patent number: 11655442
    Abstract: A system for incubating one or more cells and/or organotypic cultures for biological investigation, in particular for toxicology assessment, comprising a bio-incubator and a pressure system fluidly connected with the bio-incubator. The pressure system is a cyclic gas pressure system configured for cyclically varying the gas pressure in the bio-incubator between a negative pressure and a positive pressure compared to the atmospheric pressure, so as to reproduce the pressure conditions in lungs of a living mammal. The system is remarkable in that the cyclic gas pressure system comprises a feedthrough with a pipe configured to deviate the air influx from the one or more cells and/or organotypic cultures.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: May 23, 2023
    Assignee: LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (LIST)
    Inventors: Arno Gutleb, Tommaso Serchi, Mathieu Gerard
  • Publication number: 20230033512
    Abstract: A heat exchanger comprising at least two substrates made of electro-caloric and/or pyroelectric material and stacked one on the other so as to form between the at least two substrates and at least one channel for a fluid; at least two electrodes at two opposed ends of the at least two substrates; a housing enclosing the stack of the at least two substrates and the at least two electrodes, and provided with at least one fluid connecting port; wherein the housing is made of a heat shrinkable flexible tube that is shrunk onto the stack of the at least two electrodes and forming the at least one fluid connecting port.
    Type: Application
    Filed: February 19, 2021
    Publication date: February 2, 2023
    Inventors: Emmanuel DEFAY, Mathieu GERARD, Alvar TORELLÓ MASSANA
  • Publication number: 20220326056
    Abstract: An aspect of the present invention pertains to a method for determining the volumetric flow rate of a compressible fluid flow flowing through a volume flowmeter having a flow inlet, a wheel downstream of the flow inlet and a constriction downstream of the flow inlet and upstream of the wheel, the compressible fluid flowing through the flow inlet and actuating the wheel. The method comprises measuring the rotational speed of the wheel and determining the permanent pressure loss across the wheel based on the measured rotational speed. The method further comprises measuring the fluid pressure of the compressible fluid flow at the flow inlet and determining whether the compressible fluid flow in the volume flowmeter is in the subsonic or in the supersonic regime based on the determined permanent pressure loss and the measured fluid pressure.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 13, 2022
    Inventors: Jérôme POLESEL, Mathieu GERARD
  • Publication number: 20220115937
    Abstract: An electric generator comprising a rotor with permanent magnets, configured for rotating about a rotation axis; a stator comprising at least one magnetic yoke with arms extending axially inside or outside of the rotor so as to be adjacent to a radial inner or outer side, respectively, of the rotor; wherein the arms of the at least one magnetic yoke are circumferentially distributed so as to form a slot between each pair of adjacent arms, each slot and each arm showing a width. The widths of the arms and/or the widths of the slots have different values distributed along the circumference. The invention is also directed to a valve comprising the electric generator equipped with a turbine wheel for being driven by a flow of gas in the valve.
    Type: Application
    Filed: November 28, 2019
    Publication date: April 14, 2022
    Inventors: Jérôme POLESEL, MATHIEU GERARD, Mohamed EL HACHEMI, Abdelmoumin ALLIOUA
  • Patent number: 11223265
    Abstract: An electric generator comprising a rotor housing; a rotor mounted in the rotor housing, with two opposed main faces; permanent magnets circumferentially arranged in front of one of the main faces of the rotor; coils circumferentially arranged in front of the other one of the main faces of the rotor; the rotor being configured for, upon rotation, vary a magnetic flux through the coils produced by the permanent magnets, so as to generate electromotive forces in said coils; wherein the coils are arranged outside of the rotor housing. Also a valve for gas cylinder, equipped with a corresponding electric generator.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: January 11, 2022
    Assignees: Luxembourg Institute of Science and Technology (LIST), Rotarex S.A.
    Inventors: Mathieu Gerard, Jérôme Polesel Maris
  • Patent number: 11071964
    Abstract: The present invention is related to an electrochemical reactor (1) and a microfluidic platform (20) comprising this reactor (1), controlling pH in a closed environment, wherein this reactor (1) comprises at least one cell (2), wherein each cell (2) containing at least one micro-well (3a) able to contain a liquid and reagents and a cap (7) to close the said cell (2) and wherein the cell (2) further comprises at least one working electrode (5) producing reversible REDOX reactions.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: July 27, 2021
    Assignee: LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (LIST)
    Inventors: Cesar Pascual Garcia, Mathieu Gerard, Jean Sebastien Thomann
  • Publication number: 20210175778
    Abstract: An electric generator comprising a rotor with permanent magnets, configured for rotating about a rotation axis; at least one magnetic yoke with at least two arms extending axially inside or outside of the rotor so as to be adjacent to the radial inner or outer side, respectively, of the rotor; wherein the permanent magnets are arranged according to an Halbach array so as to maximize the magnetic field on the radial side of the rotor adjacent to the arms of the at least one yoke. Also, a valve for gas cylinder, equipped with a corresponding electric generator.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 10, 2021
    Inventors: Mathieu GERARD, Jérôme POLESEL MARIS
  • Publication number: 20200339937
    Abstract: A system for incubating one or more cells and/or organotypic cultures for biological investigation, in particular for toxicology assessment, comprising a bio-incubator and a pressure system fluidly connected with the bio-incubator. The pressure system is a cyclic gas pressure system configured for cyclically varying the gas pressure in the bio-incubator between a negative pressure and a positive pressure compared to the atmospheric pressure, so as to reproduce the pressure conditions in lungs of a living mammal. The system is remarkable in that the cyclic gas pressure system comprises a feedthrough with a pipe configured to deviate the air influx from the one or more cells and/or organotypic cultures.
    Type: Application
    Filed: December 31, 2018
    Publication date: October 29, 2020
    Inventors: Arno GUTLEB, Tommaso SERCHI, Mathieu GERARD
  • Publication number: 20200343801
    Abstract: An electric generator comprising a rotor housing; a rotor mounted in the rotor housing, with two opposed main faces; permanent magnets circumferentially arranged in front of one of the main faces of the rotor; coils circumferentially arranged in front of the other one of the main faces of the rotor; the rotor being configured for, upon rotation, vary a magnetic flux through the coils produced by the permanent magnets, so as to generate electromotive forces in said coils; wherein the coils are arranged outside of the rotor housing. Also a valve for gas cylinder, equipped with a corresponding electric generator.
    Type: Application
    Filed: December 12, 2018
    Publication date: October 29, 2020
    Inventors: Mathieu GERARD, Jérôme POLESEL MARIS
  • Publication number: 20190259583
    Abstract: A plasma post-discharge deposition device for depositing crystalline metal oxide derivative on a substrate, the device comprising a gas source with a substrate inlet, a post-discharge deposition chamber with a substrate outlet, the substrate inlet and the substrate outlet defining a longitudinal central axis, and a dielectric tube placed between the gas source and the deposition chamber on the longitudinal central axis; configured to confine a plasma discharge and comprising a discharge zone lying on the internal surface of the dielectric tube and a central zone centred on the longitudinal central axis. The deposition device is remarkable in that the central zone is located at a distance comprised between 1 mm and 2.5 mm from the internal surface of the dielectric tube. Also a plasma-enhanced chemical vapour deposition method.
    Type: Application
    Filed: September 14, 2017
    Publication date: August 22, 2019
    Applicant: Luxembourg Institute Of Science And Technology (LIST)
    Inventors: Kamal Baba, Nicolas Boscher, Simon Bulou, Patrick Choquet, Mathieu Gerard, Miguel Quesada Gonzalez
  • Publication number: 20190259577
    Abstract: A post-discharge plasma coating device for a wired substrate comprising an inner tubular electrode on an inner tubular wall for receiving the substrate and a precursor moving axially in a working direction; an outer tubular electrode coaxial with, and surrounding, the inner tubular electrode. The inner and outer electrodes are configured to be supplied with an electrical power source for producing a plasma when a plasma gas is supplied between the electrodes and is thereby excited, the plasma excited gas flowing axially in the working direction and reacting with the precursor in a coating area at the end of the inner tubular wall in the direction. The inner tubular wall extends axially towards the coating area at least until, in various instances beyond, the end of the outer electrode, in the working direction and at least one dielectric tubular wall extends axially between the inner tubular electrode and the outer tubular electrode.
    Type: Application
    Filed: September 8, 2017
    Publication date: August 22, 2019
    Inventors: Simon Bulou, Patrick Choquet, Thomas Gaulain, Mathieu Gerard
  • Publication number: 20180369779
    Abstract: The present invention is related to an electrochemical reactor (1) and a microfluidic platform (20) comprising this reactor (1), controlling pH in a closed environment, wherein this reactor (1) comprises at least one cell (2), wherein each cell (2) containing at least one micro-well (3a) able to contain a liquid and reagents and a cap (7) to close the said cell (2) and wherein the cell (2) further comprises at least one working electrode (5) producing reversible REDOX reactions.
    Type: Application
    Filed: December 20, 2016
    Publication date: December 27, 2018
    Inventors: Cesar PASCUAL GARCIA, Mathieu GERARD, Jean Sebastien THOMANN