Patents by Inventor Guillaume Renaud

Guillaume Renaud 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: 20210061479
    Abstract: A propulsion unit for an aircraft, including an engine and a propeller and further a propeller with airfoils which is coupled to the propeller shaft and having electrical members consuming electrical power, sealing between a case and the propeller shaft being ensured by a dynamic seal housed between a rotating dynamic seal support secured to the propeller shaft and a dynamic seal support flange secured to an end portion of the case, the rotating dynamic seal support being secured to the propeller shaft and abutted against a bearing for supporting this propeller shaft, it is provided that the propulsion unit, in order to deliver electrical power to the electrical members, having a rotating transformer rotated by the propeller shaft and including a stator, a casing of which is secured to the dynamic seal support flange and a rotor, a casing of which is secured to this propeller shaft.
    Type: Application
    Filed: April 4, 2019
    Publication date: March 4, 2021
    Applicants: SAFRAN AIRCRAFT ENGINES, SAFRAN ELECTRICAL & POWER, SAFRAN TRANSMISSION SYSTEMS
    Inventors: Mathieu Jean Jacques SANTIN, Guillaume Julien BECK, Aldric Renaud Gabriel Marie MOREAU DE LIZOREUX, Boris Pierre Marcel MORELLI, Jean-Michel Bernard Paul CHASTAGNIER, Thomas TURCHI
  • Publication number: 20200359992
    Abstract: The invention relates to a method for characterising bone, the method comprising the steps of receiving (102) ultrasonic wave echo signals transmitted into a body, determining (104) a speed of sound in the body's non-bone biological tissue, locating (106) a first demarcation curve between non-bone biological tissue and bone in an image of the body constructed during said determining step, and determining (108) a speed of sound in bone. The steps of determining speed include constructing images from the signals, and a metric calculation indicative of a focus quality in the constructed images.
    Type: Application
    Filed: July 19, 2018
    Publication date: November 19, 2020
    Applicants: Sorbonne University, Centre National de la Recherche Scientifique (CNRS), Institut National de la Sante et de la Recherche Medicale (INSERM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris
    Inventors: Guillaume RENAUD, Didier CASSEREAU
  • Publication number: 20200330729
    Abstract: A steerable device for use as e.g. a guidewire for insertion into a subject's body is disclosed. The device features a single side deflection of a bendable portion located at its distal end by application of a longitudinally-directed force either on an inner pull wire or on said bendable portion. The bendable portion is characterized by the presence of a reinforcement structure on one lateral side and a stress relief portion on the opposed lateral side that, upon actuation of the device, allows single side bending thanks to the physical constriction of the reinforcement structure, limiting the compression of one side of the bendable portion. A system further comprising an actuator, as well as methods for using thereof, are also disclosed.
    Type: Application
    Filed: October 24, 2017
    Publication date: October 22, 2020
    Inventors: Guillaume PETITPIERRE, Marc BOERS, Philippe RENAUD
  • Publication number: 20200315700
    Abstract: The invention provides for a device (100) for use in electrical nerve modulation in a subject, characterized in that it comprises a rotational and linear actuator (110); a tubular element (101) having a proximal end connected to the actuator (110) and a distal end; a flexible shaft (102) coaxially disposed within the tubular element (101), comprising a proximal end operably connected to the actuator (110) and a distal end, and adapted to be slid along the tubular element (101); a conformable support (103) comprising a proximal end operably connected to the tubular element's (101) distal end, and a distal end operably connected to the flexible shaft's (102) distal end, having a portion of its length helically wrapped about a distal portion of the flexible shaft (102) so to define a pitch (500) and a radius (400); and a plurality of electrodes (104) operably disposed along the helically configured portion of the conformable support (103), and electrically connectable to a generator (200), adapted to contact the
    Type: Application
    Filed: May 10, 2017
    Publication date: October 8, 2020
    Inventors: Guillaume PETITPIERRE, Philippe RENAUD
  • Publication number: 20200300726
    Abstract: The invention concerns a method for detecting a fatigue undergone on at least one specific location of a hydraulic unit (10), the method being characterized in that the fatigue undergone on the at least on specific location is detected by at least one fatigue indicator (F) said at least one fatigue indicator arranged for being remotely queried via wirings or via a wireless connection.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 24, 2020
    Inventors: Florian Duparchy, Pierre-Yves Lowys, Guillaume Renaud, Francois Andre
  • Publication number: 20200232441
    Abstract: The invention concerns a method for starting a hydroelectric turbine (10) provided with a runner (6) mechanically coupled to a shaft line (8), a distributor (4) comprising leak tight guide vanes to control a flow of water to said runner, a spiral case (12) for supplying water to said runner, said spiral case comprising a duct connected to a main inlet valve (14), the method comprising: a) a step of balancing pressures on both sides of said main inlet valve (14), and of at least partially opening said main inlet valve (14), while the leak-tight guide vanes of the distributor (4) are closed, water pressurized at an upstream level being present in said spiral case and at said distributor (4); b) then a step of opening the leak-tight guide vanes of the distributor (4).
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Inventors: Guillaume Renaud, Quentin Alloin
  • Patent number: 10710731
    Abstract: In an aeroengine comprising a gas turbine engine driving a propeller via a reduction gearbox, the propeller comprising a plurality of blades, each provided with one or more electrical deicer elements and being set into rotation by a propeller-carrying shaft passing through the gearbox, the propeller-carrying shaft having a fastener flange for fastening to the propeller, provision is made, in order to deliver the electrical power needed for powering said electrical deicer elements, for the aeroengine to include a rotary three-phase transformer set into rotation by the propeller-carrying shaft and comprising firstly a rotor mounted inside the propeller-carrying shaft and angularly secured thereto, and secondly a stator secured to a stationary portion of the aeroengine, the rotary three-phase transformer being arranged behind the propeller fastener flange.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: July 14, 2020
    Assignees: SAFRAN AIRCRAFT ENGINES, SAFRAN TRANSMISSION SYSTEMS, SAFRAN ELECTRICAL & POWER
    Inventors: Mathieu Jean Jacques Santin, Guillaume Julien Beck, Aldric Renaud Gabriel Marie Moreau De Lizoreux, Boris Pierre Marcel Morelli, Jean-Michel Bernard Paul Chastagnier, Thomas Turchi
  • Publication number: 20190372495
    Abstract: This method for stabilizing the rotation speed of a hydraulic machine having S-characteristic and comprising a distributor (9) is adapted to modify a water flow, so that the machine can be coupled to a grid. The method comprises the steps of calculating an orientation of the distributor (9); and orienting the distributor according to the calculated orientation. The method further comprises the steps of providing an electric torque to the machine so as to reach a target speed.
    Type: Application
    Filed: February 9, 2018
    Publication date: December 5, 2019
    Inventors: Guillaume Renaud, Theophane Foggia, Quentin Alloin
  • Publication number: 20190077487
    Abstract: A watertight enclosure for the underwater confinement of a device includes a set of ellipsoidal modules juxtaposed in a watertight manner and internally delimiting at least one volume receiving the device. It has been found that producing a watertight enclosure by means of juxtaposed ellipsoidal modules enables a total weight saving of the order of one third compared to a cylindrical envelope.
    Type: Application
    Filed: May 11, 2016
    Publication date: March 14, 2019
    Inventors: Michel POSTIC, Guillaume RENAUD, Jean-Louis IWANIACK
  • Patent number: 8616060
    Abstract: The disclosure relates to an acoustic method and device for localized, contactless, measurement of elastic and dissipative non-linearities and dynamic non-linear viscoelasticity in a medium subjected to a low-frequency acoustic stress and probed by ultrasonic pulses or wave trains.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: December 31, 2013
    Assignee: Universite Francois Rabelais de Tours
    Inventors: Samuel Calle, Marielle Defontaine, Jean-Pierre Remenieras, Guillaume Renaud
  • Publication number: 20110154901
    Abstract: The disclosure relates to an acoustic method and device for localized, contactless, measurement of elastic and dissipative non-linearities and dynamic non-linear viscoelasticity in a medium subjected to a low-frequency acoustic stress and probed by ultrasonic pulses or wave trains.
    Type: Application
    Filed: June 23, 2009
    Publication date: June 30, 2011
    Applicant: Universite Francois Rabelais De Tours
    Inventors: Samuel Calle, Marielle Defontaine, Jean-Pierre Remenieras, Guillaume Renaud