Patents by Inventor Laurent Duffau

Laurent Duffau 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: 20240132122
    Abstract: A sealing system can be mounted between a body of a vehicle and a box fastened to the body. The body and the box include a first opening and a second opening, respectively, opposite each other. The sealing system surrounds the passage and includes a bellows having a first end in contact with the body so as to surround the first opening, and a second end in contact with the box so as to surround the second opening. The sealing system comprises a compression spring. Each end of the spring acts on one of the two ends of the bellows so that the spring moves the two ends of the bellows away from each other.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 25, 2024
    Inventors: Antoine TAINE, Laurent DUFFAU, Nicolas QUENTIN
  • Patent number: 11772494
    Abstract: This electric switching device (2) comprises a first module (4), including a first support (42) on which a circuit breaker (44) is mounted, and at least one second module (6), including a second support (62) on which an electric component (64) is mounted that is able to be associated with the circuit breaker. In particular in order to facilitate the maintenance of this switching device, the latter includes guiding means (81 and 82) that are able to guide the first and second supports relative to one another between a disassembled configuration, in which at least one of the first and second modules is disengageable from the guiding means independently of the other, and an assembled configuration, in which the circuit breaker and the electric component are in a relative connection position and are able to be electrically connected to or disconnected from one another.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: October 3, 2023
    Assignee: ALSTOM Transport Technologies
    Inventors: Nicolas Quentin, Laurent Duffau, Aurel Gavid
  • Publication number: 20200269700
    Abstract: This electric switching device (2) comprises a first module (4), including a first support (42) on which a circuit breaker (44) is mounted, and at least one second module (6), including a second support (62) on which an electric component (64) is mounted that is able to be associated with the circuit breaker. In particular in order to facilitate the maintenance of this switching device, the latter includes guiding means (81 and 82) that are able to guide the first and second supports relative to one another between a disassembled configuration, in which at least one of the first and second modules is disengageable from the guiding means independently of the other, and an assembled configuration, in which the circuit breaker and the electric component are in a relative connection position and are able to be electrically connected to or disconnected from one another.
    Type: Application
    Filed: February 27, 2020
    Publication date: August 27, 2020
    Inventors: Nicolas QUENTIN, Laurent DUFFAU, Aurel GAVID
  • Patent number: 10677251
    Abstract: A method for controlling takeoffs of mechanical energy and/or air on a turbine engine for the propulsion of an aircraft. It is based on a protocol for the exchange of a request/authorization between and by the energy manager and a system for controlling the turbine engine. This protocol is implemented as a result of a modification of the takeoff requirement. It is intended to check whether the surge margin is compatible with the modification of the takeoff requirement and, if the need arises, to apply temporary measures in order to prevent surge in the turbine engine, for example by providing at least a part of the energy requirements by a buffer. This permits the optimization of the operation of a turbine engine for the propulsion of an aircraft, while avoiding the risk of surge of the turbine engine.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 9, 2020
    Assignees: Airbus Operations GmbH, Airbus Operations (S.A.S.)
    Inventors: Jan Barkowsky, Paul-Emile Roux, Laurent Duffau, Thierry Garcia, Charles Renard
  • Publication number: 20180163734
    Abstract: A method for controlling takeoffs of mechanical energy and/or air on a turbine engine for the propulsion of an aircraft. It is based on a protocol for the exchange of a request/authorization between and by the energy manager and a system for controlling the turbine engine. This protocol is implemented as a result of a modification of the takeoff requirement. It is intended to check whether the surge margin is compatible with the modification of the takeoff requirement and, if the need arises, to apply temporary measures in order to prevent surge in the turbine engine, for example by providing at least a part of the energy requirements by a buffer. This permits the optimization of the operation of a turbine engine for the propulsion of an aircraft, while avoiding the risk of surge of the turbine engine.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 14, 2018
    Inventors: Jan Barkowsky, Paul-Emile Roux, Laurent Duffau, Thierry Garcia, Charles Renard