Patents by Inventor Stéphane Roger

Stéphane Roger 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).

  • Publication number: 20250042820
    Abstract: A method for manufacturing a part of SiC/SiC composite material includes the production of a fibrous preform from silicon carbide fibers; the deposition of an interphase on the fibers of the fibrous preform; a first densification including the formation of a first matrix phase by chemical vapor infiltration with a first matrix precursor including methyltrichlorosilane (MTS); a second densification including the formation of a second matrix phase by chemical vapor infiltration with a second SiC precursor different from the first precursor, the second precursor forming an SiC deposit comprising residual hydrogen and free silicon; and a third densification including the impregnation of the fibrous preform with an impregnation composition containing at least silicon so as to obtain a part made of SiC/SiC composite material.
    Type: Application
    Filed: December 9, 2022
    Publication date: February 6, 2025
    Inventors: Stéphane Roger André GOUJARD, Guillaume Jean-Nicolas LADUYE, Benjamin COSSOU
  • Patent number: 12188361
    Abstract: The invention relates to a blade comprising a shield (14) attached to the upstream end of the body of the blade, the shield (14) comprising an upstream end forming a leading edge of the blade, the shield (14) further comprising a nose (141) upstream from which the leading edge is located, an pressure-face fin and an suction-face fin laterally attached on the blade, the fins extending from the nose, the blade comprising a defrosting air passage duct (15) arranged inside the nose and extending radially inside the nose, the duct (15) having an inner end (151) emerging opposite the root (125) and a radially external end emerging from the nose between the leading edge and its junction at the pressure-face fin.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: January 7, 2025
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Guillaume Pascal Jean-Charles Gondre, Morgane Astrid Leger, Stéphane Roger Mahias, Romuald Bernard Mauvais
  • Patent number: 12187655
    Abstract: A method of consolidation includes placing a fibrous preform in the shaping recess of a shaping tool, and supplying the shaping tool with a gas phase to obtain a deposit in the fibrous preform, the shaping tool for the vapor phase chemical infiltration including first and second portions, having respectively first and second shaping zones surrounded by a first and second edge zones, the first and the second shaping zone defining a shaping recess to receive the fibrous preform. A gas injection port is present at least partially in the first or second edge zone and a gas outlet port is present at least partially in the first or second edge zone, the gas injection port and the gas outlet port placing the shaping recess in fluid communication with the outside of the shaping tool. Outer faces of the first and second portion are impermeable to gas.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: January 7, 2025
    Assignee: SAFRAN CERAMICS
    Inventors: Stéphane Roger André Goujard, Adrien Delcamp, Cédric Descamps, Thierry Guy Xavier Tesson, Charles Leleu
  • Patent number: 12178906
    Abstract: A method for managing and/or treating obesity and/or overweight and/or for inducing weight loss. The method includes orally administering to a patient a composition capable of being transformed into a hydrogel foam after its introduction into the patient stomach. The hydrogel foam occupies at least 20% of the volume of the patient stomach.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: December 31, 2024
    Assignee: JELLYNOV
    Inventors: Jean-Michel Simon, Stéphane Roger
  • Publication number: 20240254622
    Abstract: A method for manufacturing a structure by an additive manufacturing technique implementing a chemical vapor deposition assisted by focused energy radiation, includes the formation of a reinforcement which comprises a plurality of interconnected reinforcing elements made of ceramic or carbon, which define therebetween an interstitial volume having a tortuous shape along the deposition axis.
    Type: Application
    Filed: July 9, 2021
    Publication date: August 1, 2024
    Inventors: Arnaud DELEHOUZE, Eric BOUILLON, Stéphane Roger André GOUJARD, Marc MONTAUDON
  • Publication number: 20240003265
    Abstract: The invention relates to a blade comprising a shield (14) attached to the upstream end of the body of the blade, the shield (14) comprising an upstream end forming a leading edge of the blade, the shield (14) further comprising a nose (141) upstream from which the leading edge is located, an pressure-face fin and an suction-face fin laterally attached on the blade, the fins extending from the nose, the blade comprising a defrosting air passage duct (15) arranged inside the nose and extending radially inside the nose, the duct (15) having an inner end (151) emerging opposite the root (125) and a radially external end emerging from the nose between the leading edge and its junction at the pressure-face fin.
    Type: Application
    Filed: November 10, 2021
    Publication date: January 4, 2024
    Applicant: Safran Aircraft Engines
    Inventors: Guillaume Pascal Jean-Charles GONDRE, Morgane Astrid LEGER, Stéphane Roger MAHIAS, Romuald Bernard MAUVAIS
  • Publication number: 20230399268
    Abstract: A method of consolidation includes placing a fibrous preform in the shaping recess of a shaping tool, and supplying the shaping tool with a gas phase to obtain a deposit in the fibrous preform, the shaping tool for the vapor phase chemical infiltration including first and second portions, having respectively first and second shaping zones surrounded by a first and second edge zones, the first and the second shaping zone defining a shaping recess to receive the fibrous preform. A gas injection port is present at least partially in the first or second edge zone and a gas outlet port is present at least partially in the first or second edge zone, the gas injection port and the gas outlet port placing the shaping recess in fluid communication with the outside of the shaping tool. Outer faces of the first and second portion are impermeable to gas.
    Type: Application
    Filed: February 10, 2021
    Publication date: December 14, 2023
    Inventors: Stéphane Roger André GOUJARD, Adrien DELCAMP, Cédric DESCAMPS, Thierry Guy Xavier TESSON, Charles LELEU
  • Publication number: 20230392502
    Abstract: The present invention relates to a blade (3) of a fan (1), made of composite material, of a turbomachine. On a portion (15) of the blade (7) which extends from a lower limit (16) located at a predetermined distance (d) from the shank (6) of the blade equal to at least 80% of the predetermined height (h) to the top (11) of the blade (7), a dihedral angle (D) measured at at least one predefined point on the chord of the blade (3), located on the chord of the blade (3) at the upstream end (13a) of the nose (13) of the shield (12), is greater than or equal to ?3° and less than or equal to 0°.
    Type: Application
    Filed: October 19, 2021
    Publication date: December 7, 2023
    Applicant: Safran Aircraft Engines
    Inventors: Guillaume, Pascal, Jean-Charles GONDRE, Stéphane, Roger MAHIAS, Olivier BAZOT, Guillaume, Claude, Robert BELMON, Charles-Henri, Claude, Jacky SULLET
  • Patent number: 11753594
    Abstract: A method for treating an aromatic mineral oil or a mixture of aromatic mineral oil and naphthenic mineral oil, the oil or the mixture of oils being loaded with polycyclic aromatic hydrocarbons, the method including a—optional removal of polycyclic aromatic hydrocarbon s having a molecular weight greater than or equal to 200 from the aromatic mineral oil or the mixture of aromatic mineral oil and naphthenic mineral oil loaded with polycyclic aromatic hydrocarbons; b—extraction, at a pressure lower than atmospheric pressure, of polycyclic aromatic hydrocarbons having a molecular weight lower than 200 solubilised in the oil or the mixture of oils obtained in step (a); and c—recovery of the oil or the mixture of oils depleted in polycyclic aromatic hydrocarbons.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 12, 2023
    Assignee: SAFRAN CERAMICS
    Inventors: Jean-François Daniel René Potin, Arnaud Delehouze, Stéphane Roger André Goujard
  • Patent number: 11674219
    Abstract: A method for densifying one or more porous substrates with pyrolytic carbon by chemical vapour infiltration, includes admitting, at the inlet of the densification furnace, a reactive gaseous phase including at least one pyrolytic carbon precursor; reacting at least a fraction of the reactive gaseous phase with the porous substrate or substrates; extracting, at the outlet of the densification furnace, gaseous effluents originating from the reactive gaseous phase; reintroducing, with the reactive gaseous phase admitted at the inlet of the densification furnace, at least a fraction of the gaseous effluents extracted at the outlet of the furnace, wherein the fraction of the gaseous effluents introduced with the reactive gaseous phase includes at least one polyaromatic hydrocarbon compound.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: June 13, 2023
    Assignee: SAFRAN CERAMICS
    Inventors: Jean-François Daniel René Potin, Arnaud Delehouze, Stéphane Roger André Goujard
  • Publication number: 20230160056
    Abstract: A method for densifying one or more porous substrates with pyrolytic carbon by chemical vapour infiltration, includes admitting, at the inlet of the densification furnace, a reactive gaseous phase including at least one pyrolytic carbon precursor; reacting at least a fraction of the reactive gaseous phase with the porous substrate or substrates; extracting, at the outlet of the densification furnace, gaseous effluents originating from the reactive gaseous phase; reintroducing, with the reactive gaseous phase admitted at the inlet of the densification furnace, at least a fraction of the gaseous effluents extracted at the outlet of the furnace, wherein the fraction of the gaseous effluents introduced with the reactive gaseous phase includes at least one polyaromatic hydrocarbon compound.
    Type: Application
    Filed: March 19, 2021
    Publication date: May 25, 2023
    Inventors: Jean-François Daniel René POTIN, Arnaud DELEHOUZE, Stéphane Roger André GOUJARD
  • Publication number: 20220409529
    Abstract: A method for managing and/or treating obesity and/or overweight and/or for inducing weight loss. The method includes orally administering to a patient a composition capable of being transformed into a hydrogel foam after its introduction into the patient stomach. The hydrogel foam occupies at least 20% of the volume of the patient stomach.
    Type: Application
    Filed: August 29, 2022
    Publication date: December 29, 2022
    Applicant: JELLYNOV
    Inventors: Jean-Michel SIMON, Stéphane ROGER
  • Patent number: 11512024
    Abstract: A method for densifying porous annular substrates by chemical vapor infiltration, includes providing a plurality of unit modules including a support tray on which substrates are stacked, the support tray including a gas intake opening extended by an injection tube disposed in an internal volume formed by the central passages of the stacked substrates, the injection tube including gas injection orifices opening into the internal volume, forming stacks of unit modules in the enclosure of a densification furnace and injecting, into the stacks of unit modules, a gas phase including a gas precursor of a matrix material to be deposited within the porosity of the substrates.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: November 29, 2022
    Assignee: SAFRAN CERAMICS
    Inventors: Franck Lamouroux, Rémy Dupont, Sébastien Bertrand, Stéphane Roger André Goujard, Matthieu Champagne, Olivier Clausse, Jean-Michel Garcia, Jeff Roustand
  • Patent number: 11473430
    Abstract: The invention relates to a turbomachine assembly (1) comprising a fan (2) and a booster drum-type part (3), the fan (2) comprising:—blades (20) comprising an airfoil (23) and an extension (30) mounted on and attached to the trailing edge (25) of the airfoil (23),—a fan (2) disc (10) and—a series of inter-blade platforms (16), the extension (30) of each blade (20) extending beyond the downstream face (14) of the fan (2) disc (10) in the direction of the upstream edge (4) of the part (3) and covering, at least partially, the cavity (6) between the fan (2) and the part (3).
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: October 18, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Paul Antoine Foresto, Vivien Mickaël Courtier, Stéphane Roger Mahias, William Henri Joseph Riera
  • Patent number: 11471407
    Abstract: A composition that is self-foaming in an acid medium, and includes: at least one hydrophilic polymer, at least one compound capable of crosslinking the hydrophilic polymer by forming ionic bonds, at least one foaming agent, and at least one foam stabilizer agent; and to the use thereof as a drug, particularly for preventing and/or treating obesity.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: October 18, 2022
    Assignee: JELLYNOV
    Inventors: Jean-Michel Simon, Stéphane Roger
  • Publication number: 20220325190
    Abstract: A method for treating an aromatic mineral oil or a mixture of aromatic mineral oil and naphthenic mineral oil, the oil or the mixture of oils being loaded with polycyclic aromatic hydrocarbons, the method including a—optional removal of polycyclic aromatic hydrocarbon s having a molecular weight greater than or equal to 200 from the aromatic mineral oil or the mixture of aromatic mineral oil and naphthenic mineral oil loaded with polycyclic aromatic hydrocarbons; b—extraction, at a pressure lower than atmospheric pressure, of polycyclic aromatic hydrocarbons having a molecular weight lower than 200 solubilised in the oil or the mixture of oils obtained in step (a); and c—recovery of the oil or the mixture of oils depleted in polycyclic aromatic hydrocarbons.
    Type: Application
    Filed: September 25, 2020
    Publication date: October 13, 2022
    Inventors: Jean-François Daniel René POTIN, Arnaud DELEHOUZE, Stéphane Roger André GOUJARD
  • Publication number: 20220056803
    Abstract: The invention relates to a turbomachine assembly (1) comprising a fan (2) and a booster drum-type part (3), the fan (2) comprising:—blades (20) comprising an airfoil (23) and an extension (30) mounted on and attached to the trailing edge (25) of the airfoil (23),—a fan (2) disc (10) and—a series of inter-blade platforms (16), the extension (30) of each blade (20) extending beyond the downstream face (14) of the fan (2) disc (10) in the direction of the upstream edge (4) of the part (3) and covering, at least partially, the cavity (6) between the fan (2) and the part (3).
    Type: Application
    Filed: December 20, 2019
    Publication date: February 24, 2022
    Applicant: SAFRAN AIRCRAFT ENGINES
    Inventors: Paul Antoine FORESTO, Vivien Mickaël COURTIER, Stéphane Roger MAHIAS, William Henri Joseph RIERA
  • Publication number: 20210261471
    Abstract: A method for densifying porous annular substrates by chemical vapor infiltration, includes providing a plurality of unit modules including a support tray on which substrates are stacked, the support tray including a gas intake opening extended by an injection tube disposed in an internal volume formed by the central passages of the stacked substrates, the injection tube including gas injection orifices opening into the internal volume, forming stacks of unit modules in the enclosure of a densification furnace and injecting, into the stacks of unit modules, a gas phase including a gas precursor of a matrix material to be deposited within the porosity of the substrates.
    Type: Application
    Filed: August 12, 2019
    Publication date: August 26, 2021
    Inventors: Franck LAMOUROUX, Rémy DUPONT, Sébastien BERTRAND, Stéphane Roger André GOUJARD, Matthieu CHAMPAGNE, Olivier CLAUSSE, Jean-Michel GARCIA, Jeff ROUSTAND
  • Publication number: 20210012791
    Abstract: A system and method for receiving, using one or more processors, a first conversation; identifying, using the one or more processors, a first set of utterances associated with a first conversation participant and a second set of utterances associated with a second conversation participant; and generating, using the one or more processors, a first image representation of the first conversation, the first image representation of the first conversation visually representing the first set of utterances and second set of utterances, wherein an utterance is visually represented by a first parameter associated with timing of the utterance, a second parameter associated with a number of tokens in the utterance, and a third parameter associated with which conversation participant was a source of the utterance.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 14, 2021
    Inventors: Gregory Jean-Francois Renard, Stephane Roger Dadian, Luis Matias Montero
  • Patent number: 10858943
    Abstract: The invention relates to a fan blink (28) for an aircraft turbomachine, comprising a hub, an annular platform (42) and fan blades (44) arranged projecting from the annual platform. It also comprises a mechanical discharge slit (52) from a trailing edge (49) of the fan blade, associated with at least one of the fan blades (44), for the case of ingestion of a bird, the slit being made on the annular platform (42) going around the trailing edge (49).
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: December 8, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Guillaume Pascal Jean-Charles Gondre, Paul Antoine Foresto, Stéphane Roger Mahias