Patents by Inventor Raphael PIERRA
Raphael PIERRA 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).
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Patent number: 11192640Abstract: An emergency extension system for extending at least one aircraft undercarriage, the emergency extension system comprising both electromechanical actuators, each electromechanical actuator having an identification component arranged to allocate an identifier to said electromechanical actuator, which identifier depends in particular on a function performed by said electromechanical actuator, and also an electrical card having a delay component arranged to delay actuation of a the electromechanical actuator by an actuation delay that depends on the identifier allocated to the electromechanical actuator, the electromechanical actuators of the emergency extension system thus being arranged to be actuated in succession in an actuation sequence that is defined by the actuation delays.Type: GrantFiled: February 22, 2018Date of Patent: December 7, 2021Inventors: Raphaël Pierra, Mathieu Rousselet, Vincent Pascal, Jean-Luc Belleval
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Patent number: 10965190Abstract: Electric motor comprising a rotor and a stator (2), the stator comprising a body (3) forming a frame and a windings assembly (4, 5) housed in slots of the body. The electric motor comprises at least one rod (16, 23) used to connect, to one another, at least two fixed assembled parts of the electric motor, the rod extending into a housing (9) formed in the body over the entire length thereof in order to emerge on each side of the body.Type: GrantFiled: October 4, 2016Date of Patent: March 30, 2021Assignee: SAFRAN LANDING SYSTEMSInventors: Eric Evenor, Francois-Noel Leynaert, Raphael Pierra
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Patent number: 10618640Abstract: An aircraft braking system comprising: a first group (Ga) of actuators and a second group (Gb) of actuators. A first control module (105a) is adapted, in a nominal mode, to control the first group, and in a reconfigured mode, to control the first group and the second group. A second control module (105b) is adapted, in a nominal mode, to control the second group, and in a reconfigured mode, to control the first group and the second group. A monitoring unit adapted is adapted to monitor the first control module and the second control module, and to put the first control module into the reconfigured mode of operation when the monitoring unit detects a failure of the second control module, and to put the second control module into the reconfigured mode when the monitoring unit detects a failure of the first control module.Type: GrantFiled: July 24, 2017Date of Patent: April 14, 2020Assignee: SAFRAN LANDING SYSTEMSInventors: Francois Bonigen, David Frank, Raphael Pierra, Dominique Onfroy
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Publication number: 20180244374Abstract: An emergency extension system for extending at least one aircraft undercarriage, the emergency extension system comprising both electromechanical actuators, each electromechanical actuator having an identification component arranged to allocate an identifier to said electromechanical actuator, which identifier depends in particular on a function performed by said electromechanical actuator, and also an electrical card having a delay component arranged to delay actuation of a the electromechanical actuator by an actuation delay that depends on the identifier allocated to the electromechanical actuator, the electromechanical actuators of the emergency extension system thus being arranged to be actuated in succession in an actuation sequence that is defined by the actuation delays.Type: ApplicationFiled: February 22, 2018Publication date: August 30, 2018Applicant: SAFRAN LANDING SYSTEMSInventors: Raphaël Pierra, Mathieu Rousselet, Vincent Pascal, Jean-Luc Belleval
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Publication number: 20180022446Abstract: An aircraft braking system comprising: a first group (Ga) of actuators and a second group (Gb) of actuators. A first control module (105a) is adapted, in a nominal mode, to control the first group, and in a reconfigured mode, to control the first group and the second group. A second control module (105b) is adapted, in a nominal mode, to control the second group, and in a reconfigured mode, to control the first group and the second group. A monitoring unit adapted is adapted to monitor the first control module and the second control module, and to put the first control module into the reconfigured mode of operation when the monitoring unit detects a failure of the second control module, and to put the second control module into the reconfigured mode when the monitoring unit detects a failure of the first control module.Type: ApplicationFiled: July 24, 2017Publication date: January 25, 2018Applicant: SAFRAN LANDING SYSTEMSInventors: Francois BONIGEN, David FRANK, Raphael PIERRA, Dominique ONFROY
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Publication number: 20170098976Abstract: Electric motor comprising a rotor and a stator (2), the stator comprising a body (3) forming a frame and a windings assembly (4, 5) housed in slots of the body. The electric motor comprises at least one rod (16, 23) used to connect, to one another, at least two fixed assembled parts of the electric motor, the rod extending into a housing (9) formed in the body over the entire length thereof in order to emerge on each side of the body.Type: ApplicationFiled: October 4, 2016Publication date: April 6, 2017Applicant: SAFRAN LANDING SYSTEMSInventors: Eric EVENOR, Francois-Noel LEYNAERT, Raphael PIERRA
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Patent number: 9467026Abstract: An electromechanical actuator comprising an actuator member and an electric motor (2) adapted to drive the actuator member. The electric motor (2) comprises a rotor portion (4), a stator portion (5) comprising a yoke-forming body (9) and a set of coils received in slots (12) in the body (9), and at least one electrical module (17). The electrical module is adapted to generate an electrical power supply current (Ia) for the electric motor (2), which current flows in the set of coils. The electrical module (17) is carried by the body (9).Type: GrantFiled: July 11, 2014Date of Patent: October 11, 2016Assignee: MESSIER-BUGATTI-DOWTYInventors: Florent Nierlich, Etienne Annee, Raphael Pierra
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Publication number: 20150015127Abstract: An electromechanical actuator comprising an actuator member and an electric motor (2) adapted to drive the actuator member. The electric motor (2) comprises a rotor portion (4), a stator portion (5) comprising a yoke-forming body (9) and a set of coils received in slots (12) in the body (9), and at least one electrical module (17). The electrical module is adapted to generate an electrical power supply current (Ia) for the electric motor (2), which current flows in the set of coils. The electrical module (17) is carried by the body (9).Type: ApplicationFiled: July 11, 2014Publication date: January 15, 2015Applicant: MESSIER-BUGATTI-DOWTYInventors: Florent NIERLICH, Etienne ANNEE, Raphael PIERRA