Patents by Inventor Raphael Medina
Raphael Medina 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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Publication number: 20210062898Abstract: There is provided an actuator comprising screw shaft and a nut assembly. The nut assembly comprises a primary nut for transmitting load through the actuator along a primary load path, and a secondary nut for transmitting load through the actuator along a secondary load path. The secondary nut comprises first and second portions movable relative to one another. As load is transmitted through the actuator along the primary load path the secondary nut does not transmit load through the actuator, wherein upon failure of the primary load path the first and second portions move relative to each other, such relative movement causing the first and second portions to engage the screw shaft and enable transmittal of load through the secondary nut of the actuator along the secondary load path.Type: ApplicationFiled: December 12, 2019Publication date: March 4, 2021Inventors: Raphael MEDINA, Rui AMARAL
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Patent number: 10933979Abstract: A spoiler actuator can be operated by applying high pressure to a first chamber of the actuator on receipt of a command to extend the spoiler; applying high pressure to a second chamber of the actuator on receipt of a command to retract the spoiler; and on failure of a supply of the high pressure actuating an anti-extension valve to prevent extension of the spoiler; disengaging the anti-extension valve to permit extension if pressure applied to the anti-extension valve exceeds a predetermined force of a spring biasing the anti-extension valve to the engaged position, wherein additional force is applied to the anti-extension valve if the spoiler is retracted beyond a neutral position.Type: GrantFiled: December 5, 2019Date of Patent: March 2, 2021Assignee: GOODRICH ACTUATION SYSTEMS SASInventors: Raphael Medina, Gregory Meignat
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Publication number: 20200391846Abstract: A system for detecting and controlling the position of a spoiler of an aircraft wing is described herein comprising: a hydraulic actuator having a piston rod operably connected to the spoiler, the piston rod being moveable between a retracted position, a neutral position and an extended position; and means for providing power to said hydraulic actuator; and a mechanical device for detecting whether the piston rod is in the retracted position, the neutral position or the extended position; and means, operatively connected to the mechanical device, that is configured to provide a change in a load applied to said hydraulic actuator, wherein said means is configured to change said load based on whether said piston rod is detected as being in said retracted position or said extended position.Type: ApplicationFiled: December 12, 2019Publication date: December 17, 2020Inventor: Raphael MEDINA
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Publication number: 20200393027Abstract: A screw actuator having a screw shaft and a nut arrangement is described herein, the nut arrangement comprising: a primary nut; a first secondary nut having a first thread; a second secondary nut having a second thread; and a first attachment means. The first nut, first secondary nut, and second secondary nut are connected to the first attachment means with a first, initial, axial spacing between the first and second secondary nuts. The first secondary nut is mounted to the first attachment means via bearings that allow the first secondary nut to rotate relative to the first attachment. The first secondary nut is connected to the second secondary nut via a screw thread connection having a pitch lower than a pitch of a screw thread of the screw actuator shaft.Type: ApplicationFiled: December 12, 2019Publication date: December 17, 2020Inventors: Quentin RICARD, Raphael MEDINA
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Publication number: 20200391849Abstract: An attachment assembly for connecting an actuator to a frame, a method for manufacturing this attachment assembly and a method for reducing backlash in an attachment assembly. The attachment assembly comprises: an outer yoke having a first end and an opposite second end and defining an internal cavity at said second end. The outer yoke has an aperture provided at its second end connected to the cavity; and an inner yoke located within the cavity. A tie bar having a ball shaped end extends through said aperture such that the ball shaped end is positioned within the cavity and cannot pass through the aperture. A spring is provided at said first end of said outer yoke that is configured to bias the inner yoke in the direction of the aperture. The attachment also includes shearable means for holding the inner yoke.Type: ApplicationFiled: December 12, 2019Publication date: December 17, 2020Inventors: Quentin RICARD, Raphael MEDINA
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Publication number: 20200255125Abstract: A spoiler actuator can be operated by applying high pressure to a first chamber of the actuator on receipt of a command to extend the spoiler; applying high pressure to a second chamber of the actuator on receipt of a command to retract the spoiler; and on failure of a supply of the high pressure actuating an anti-extension valve to prevent extension of the spoiler; disengaging the anti-extension valve to permit extension if pressure applied to the anti-extension valve exceeds a predetermined force of a spring biasing the anti-extension valve to the engaged position, wherein additional force is applied to the anti-extension valve if the spoiler is retracted beyond a neutral position.Type: ApplicationFiled: December 5, 2019Publication date: August 13, 2020Inventors: Raphael MEDINA, Gregory MEIGNAT
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Publication number: 20200255126Abstract: An actuator control arrangement includes a hydraulic actuator having a housing and a piston rod axially moveable within the housing, a stop disposed within the housing to limit the extent of movement of the piston rod into the housing, and a solenoid valve arranged between a pressure source and the actuator. The solenoid valve is switchable between a first mode and a second mode in response to an electric control signal, wherein, in the first mode, the solenoid valve creates a fluid flow path from the pressure source to the actuator so as to locate the stop in its neutral position and in the second mode, the solenoid valve creates a fluid flow path to release pressure from the actuator to permit the stop to move to its retracted position. In the event of electrical failure, the stop will set the actuator to its neutral position.Type: ApplicationFiled: December 11, 2019Publication date: August 13, 2020Inventor: Raphael MEDINA
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Publication number: 20200148334Abstract: A trimmable horizontal stabiliser actuator (THSA) control system includes least one main THSA motor for driving the THSA in response to inputs from a flight control computer (FCC), a pilot trim control system for manual control of the THSA by a pilot overriding the FCC. The pilot trim control system comprises a trim control for receiving an input from the pilot, the trim control including a trim control sensor for detecting the input from the pilot and providing a pilot trim control signal; a THSA trim control motor for driving the THSA in response to the pilot trim control signal; and an electronic override system for giving inputs from the pilot priority over inputs from the FCC.Type: ApplicationFiled: October 28, 2019Publication date: May 14, 2020Inventor: Raphael MEDINA
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Publication number: 20190202545Abstract: An assembly for manual control of an HSTA for controlling the position of a moveable surface, the assembly comprising a user-operated manual control element (1?) e.g. a trim wheel in the cockpit, a first motor and a first resolver connected to the manual control element and a second motor and a second resolver arranged to communicate with the first motor and the first resolver and to cause corresponding movement of the actuator, in use.Type: ApplicationFiled: October 23, 2018Publication date: July 4, 2019Inventor: Raphael MEDINA
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Patent number: 10337593Abstract: A lower attachment system for a trimmable horizontal stabilizer actuator (THSA) includes a screwshaft forming a part of or coupled to a main screw of the actuator, the screwshaft having an axial direction and a primary ballnut disposed on the screwshaft and forming a part of a primary load path of the lower attachment system. The THSA also includes a lower secondary nut and an upper secondary nut as well as a secondary connection arranged for axial and rotational movement and coupled to each of the lower secondary nut and the upper secondary nut. The secondary connection is arranged to be loaded when the secondary load path is loaded and the secondary load path also includes the upper and lower secondary nuts.Type: GrantFiled: March 25, 2016Date of Patent: July 2, 2019Assignee: GOODRICH ACTUATION SYSTEMS SASInventors: Raphael Medina, Anh-Vu Abdul-Bari
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Publication number: 20190168859Abstract: An upper attachment system for a trimmable horizontal stabiliser actuator (THSA) comprises: a housing, holding a yoke and a ballscrew; a nut coupled to the housing and cooperating with the ballscrew such that rotation of the ballscrew relative to the nut results in linear motion of the ballscrew; a recess formed between the yoke and the ballscrew and arranged to receive, in use, an upper part of a tie bar of the secondary load path of the actuator; and a biasing mechanism arranged such that, in use, when no axial load is applied to the tie bar, the yoke and the ballscrew are held by balanced forces from the biasing mechanism in a position within the recess.Type: ApplicationFiled: February 6, 2019Publication date: June 6, 2019Inventors: Raphael Medina, Anh-Vu Abdul-Bari
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Publication number: 20190107185Abstract: A lower attachment system for a trimmable horizontal stabiliser actuator (THSA) includes a screwshaft forming a part of or coupled to a main screw of the actuator, the screwshaft having an axial direction and a primary ballnut disposed on the screwshaft and forming a part of a primary load path of the lower attachment system. The THSAalso includes a lower secondary nut and an upper secondary nut as well as a secondary connection arranged for axial and rotational movement and coupled to each of the lower secondary nut and the upper secondary nut. The secondary connection is arranged to be loaded when the secondary load path is loaded and the secondary load path also includes the upper and lower secondary nuts.Type: ApplicationFiled: December 7, 2018Publication date: April 11, 2019Inventors: Raphael Medina, Anh-Vu Abdul-Bari
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Patent number: 10239603Abstract: An upper attachment system for a trimmable horizontal stabilizer actuator (THSA) comprises: a housing, holding a yoke and a ballscrew; a nut coupled to the housing and cooperating with the ballscrew such that rotation of the ballscrew relative to the nut results in linear motion of the ballscrew; a recess formed between the yoke and the ballscrew and arranged to receive, in use, an upper part of a tie bar of the secondary load path of the actuator; and a biasing mechanism arranged such that, in use, when no axial load is applied to the tie bar, the yoke and the ballscrew are held by balanced forces from the biasing mechanism in a position within the recess.Type: GrantFiled: March 25, 2016Date of Patent: March 26, 2019Assignee: GOODRICH ACTUATION SYSTEMS SASInventors: Raphael Medina, Anh-Vu Abdul-Bari
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Patent number: 10155582Abstract: A connection for a lower attachment for a trimmable horizontal stabilizer actuator (THSA) for connecting the lower attachment to a flight control surface. The attachment includes: a surface bracket for coupling to the flight control surface, the surface bracket mounted about a gimbal of the lower attachment by a bushing disposed between the gimbal and the surface bracket; a failsafe plate fittingly engaged on a first end of the bushing; and a tightening ring mounted on a second end of the bushing opposite the first end and secured to the surface bracket by at least one contact screw, such that the contact screw is operable to urge the bushing against the failsafe plate.Type: GrantFiled: August 5, 2016Date of Patent: December 18, 2018Assignee: GOODRICH ACTUATION SYSTEMS SASInventors: Raphael Medina, Quentin Ricard
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Publication number: 20170335931Abstract: A screw (20) assembly for an actuator (10) is described comprising: a screw (20); a nut (22) threaded on said screw (20), such that rotation of said screw (20) causes axial movement of said nut (22); a stop located at an end of said screw (20) and defining an axial limit of said nut (22); a first feature located on said nut (22); and a second feature located on said stop; wherein said first and second features are configured to cooperate with one another substantially upon contact of said nut (22) with said stop so as to indicate an amount of free movement between said nut (22) and said screw (20).Type: ApplicationFiled: December 1, 2014Publication date: November 23, 2017Applicant: Goodrich Actuation Systems SASInventors: Thomas Moulon, Raphaël Medina
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Publication number: 20170036754Abstract: A connection for a lower attachment for a trimmable horizontal stabiliser actuator (THSA) for connecting the lower attachment to a flight control surface. The attachment includes: a surface bracket for coupling to the flight control surface, the surface bracket mounted about a gimbal of the lower attachment by a bushing disposed between the gimbal and the surface bracket; a failsafe plate fittingly engaged on a first end of the bushing; and a tightening ring mounted on a second end of the bushing opposite the first end and secured to the surface bracket by at least one contact screw, such that the contact screw is operable to urge the bushing against the failsafe plate.Type: ApplicationFiled: August 5, 2016Publication date: February 9, 2017Inventors: Raphael Medina, Quentin Ricard
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Publication number: 20160281826Abstract: A lower attachment system for a trimmable horizontal stabiliser actuator (THSA) includes a screwshaft forming a part of or coupled to a main screw of the actuator, the screwshaft having an axial direction and a primary ballnut disposed on the screwshaft and forming a part of a primary load path of the lower attachment system. The THSA also includes a lower secondary nut and an upper secondary nut as well as a secondary connection arranged for axial and rotational movement and coupled to each of the lower secondary nut and the upper secondary nut. The secondary connection is arranged to be loaded when the secondary load path is loaded and the secondary load path also includes the upper and lower secondary nuts.Type: ApplicationFiled: March 25, 2016Publication date: September 29, 2016Inventors: Raphael Medina, Anh-Vu Abdul-Bari
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Publication number: 20160280356Abstract: An upper attachment system for a trimmable horizontal stabiliser actuator (THSA) comprises: a housing, holding a yoke and a ballscrew; a nut coupled to the housing and cooperating with the ballscrew such that rotation of the ballscrew relative to the nut results in linear motion of the ballscrew; a recess formed between the yoke and the ballscrew and arranged to receive, in use, an upper part of a tie bar of the secondary load path of the actuator; and a biasing mechanism arranged such that, in use, when no axial load is applied to the tie bar, the yoke and the ballscrew are held by balanced forces from the biasing mechanism in a position within the recess.Type: ApplicationFiled: March 25, 2016Publication date: September 29, 2016Inventors: Raphael Medina, Anh-Vu Abdul-Bari
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Patent number: 8944372Abstract: A device (13) for detecting the breakage of a primary path in a flight control actuator, said actuator having a primary path (1) comprising a rotary hollow screw (2), a secondary path (10) comprising a safety rod (3) that reacts the load passing through the screw (2), said device (13) being characterized in that it comprises a position sensor (15), connected to the screw (2), to measure information representative of the angular position thereof, and a disconnection system (17) able to disconnect the screw (2) position sensor (15) in the event of relative movement of the rod (3) with respect to the screw (2) if there is a break in the primary path (1).Type: GrantFiled: April 14, 2011Date of Patent: February 3, 2015Assignee: Goodrich Actuation Systems SASInventors: Thomas Moulon, Raphaël Medina
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Publication number: 20140190291Abstract: The invention relates to a flight-control actuator comprising a control screw (1) that engages with a primary nut (2), the actuator also comprising a secondary nut (5) that engages with the control screw in the event the primary nut fails. The primary nut and the secondary nut are remote from one another, the secondary nut moving substantially along a portion of the screw that is usually not fitted with the primary nut.Type: ApplicationFiled: January 19, 2012Publication date: July 10, 2014Applicant: Goodrich Actuation Systems SASInventor: Raphael Medina