Patents by Inventor Francois Barillot
Francois Barillot 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: 11009110Abstract: The motion control mechanism comprises a rotor mounted rotating around an axis. The rotor has a first threaded part and a second threaded part separated by a central part placed in contact with a stator excited by an oscillator. A frame defines a first threaded part collaborating with the first threaded part of the rotor. The second threaded part of the rotor collaborates with an output shaft. Rotation of the rotor with respect to the frame results in movement of the output shaft along the axis. The oscillator comprises an oscillating mass excited by an angular actuator formed by piezoelectric actuators arranged around a star-shaped support. The oscillator is fitted inside the rotor configured in the form of a bell and comprising several stressed sectors.Type: GrantFiled: February 4, 2020Date of Patent: May 18, 2021Assignee: CEDRAT TECHNOLOGIESInventors: François Barillot, Christian Belly, Adrien Guignabert
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Publication number: 20200248787Abstract: The motion control mechanism comprises a rotor mounted rotating around an axis. The rotor has a first threaded part and a second threaded part separated by a central part placed in contact with a stator excited by an oscillator. A frame defines a first threaded part collaborating with the first threaded part of the rotor. The second threaded part of the rotor collaborates with an output shaft. Rotation of the rotor with respect to the frame results in movement of the output shaft along the axis. The oscillator comprises an oscillating mass excited by an angular actuator formed by piezoelectric actuators arranged around a star-shaped support. The oscillator is fitted inside the rotor configured in the form of a bell and comprising several stressed sectors.Type: ApplicationFiled: February 4, 2020Publication date: August 6, 2020Applicant: CEDRAT TECHNOLOGIESInventors: François BARILLOT, Christian BELLY, Adrien GUIGNABERT
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Patent number: 9780290Abstract: A nanometer-scale precision actuator comprises a base, an intermediate structure, an output interface, and two linear elements producing a controllable extension in the same longitudinal direction, each between a first and a second end. A first of the two elements has a first end fixed onto the intermediate structure and a second end fixed onto the base, a second of the two elements has a first end fixed onto the intermediate structure and a second end fixed to the output interface. The base and the intermediate structure are positioned in such a manner that the controllable extension of the second element produces a displacement of the actuator in a first direction and the controllable extension of the first element produces a displacement of the actuator in a second direction, opposite to the first direction, with respect to the base.Type: GrantFiled: December 16, 2014Date of Patent: October 3, 2017Assignees: THALES, CEDRAT TECHNOLOGIESInventors: Christophe Devilliers, Félix Aguilar, Julien Ducarne, Francois Barillot, Frank Claeyssen
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Publication number: 20150171308Abstract: A nanometer-scale precision actuator comprises a base, an intermediate structure, an output interface, and two linear elements producing a controllable extension in the same longitudinal direction, each between a first and a second end. A first of the two elements has a first end fixed onto the intermediate structure and a second end fixed onto the base, a second of the two elements has a first end fixed onto the intermediate structure and a second end fixed to the output interface. The base and the intermediate structure are positioned in such a manner that the controllable extension of the second element produces a displacement of the actuator in a first direction and the controllable extension of the first element produces a displacement of the actuator in a second direction, opposite to the first direction, with respect to the base.Type: ApplicationFiled: December 16, 2014Publication date: June 18, 2015Inventors: Christophe DEVILLIERS, Félix AGUILAR, Julien DUCARNE, Francois BARILLOT, Frank CLAEYSSEN
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Patent number: 8004153Abstract: The invention relates to a fine positioning system using an inertial motor based on a mechanical amplifier that comprises a first amplified inertial sub-assembly including a mechanical amplifier, a piezoactive member and a countermass. A second relative drive sub-assembly includes a clamp and a clamped member attached to the first amplified inertial sub-assembly. Asymmetric excitation cycles of the first inertial sub-assembly generate impact forces and movements amplified in a driving direction (z), thus resulting in sliding and adhesion successions of the clamped member in the clamp in order to generate a relative translation movements of the points A and B relative to the point D. The mechanical amplifier increases the step size and reduces the supply inrush currents. Fine and dynamic positioning of the point B relative to the point D can be achieved with augmented strokes using the amplifier.Type: GrantFiled: March 12, 2008Date of Patent: August 23, 2011Assignee: Cedrat TechnologiesInventors: Frank Claeyssen, Francois Barillot
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Publication number: 20100038995Abstract: The invention relates to a fine positioning system using an inertial motor based on a mechanical amplifier that comprises a first amplified inertial sub-assembly including a mechanical amplifier, a piezoactive member and a countermass. A second relative drive sub-assembly includes a clamp and a clamped member attached to the first amplified inertial sub-assembly. Asymmetric excitation cycles of the first inertial sub-assembly generate impact forces and movements amplified in a driving direction (z), thus resulting in sliding and adhesion successions of the clamped member in the clamp in order to generate a relative translation movements of the points A and B relative to the point D. The mechanical amplifier increases the step size and reduces the supply inrush currents. Fine and dynamic positioning of the point B relative to the point D can be achieved with augmented strokes using the amplifier.Type: ApplicationFiled: March 12, 2008Publication date: February 18, 2010Inventors: Frank Claeyssen, Francois Barillot
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Patent number: 7528334Abstract: The inventive circuit breaker-contactor (1) comprises a fixed contact, a contact (5) movable (19, 21) with respect to the fixed contact between open and closed positions, means (7) for displacing the movable contact (5) in the closed position thereof, means (9) for displacing the movable contact in the open position.Type: GrantFiled: October 17, 2007Date of Patent: May 5, 2009Inventors: Norbert Beyrard, Frank Claeyssen, Ronan Le Letty, Francois Barillot
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Publication number: 20080179170Abstract: The inventive circuit breaker-contactor (1) comprises a fixed contact, a contact (5) movable (19, 21) with respect to the fixed contact between open and closed positions, means (7) for displacing the movable contact (5) in the closed position thereof, means (9) for displacing the movable contact in the open position.Type: ApplicationFiled: October 17, 2007Publication date: July 31, 2008Inventors: Norbert BEYRARD, Frank CLAEYSSEN, Ronan LE LETTY, Francois BARILLOT
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Patent number: 6994110Abstract: The valve comprises a mobile needle having a movement in the valve body which is controlled by an amplified piezoelectric actuator. A bellows, surrounding an intermediate zone of the needle, is integral at a first end with the valve body and at a second end with the needle so as to isolate the actuator from the pressure chamber. At least one flexible guide blade of the needle is fixed on the one hand to the valve body and on the other hand to the needle. This flexible guiding enables any part sliding with respect to another part, liable to generate wear or contaminating particles, to be avoided, except for the seat and needle.Type: GrantFiled: February 21, 2003Date of Patent: February 7, 2006Assignee: Cedrat TechnologiesInventors: François Barillot, Gilles Patient, Ronan Le Letty
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Patent number: 6936953Abstract: A piezo-active device includes a piezo-electric element and an elastically deformable shell in which the piezo-electric element is disposed. The use of this piezo-active device includes, for supplying power to an electrical circuit connected to the piezo-electric element, the step of exerting on the piezo-active device a punctual mechanical action and then allowing the piezo-active device to resonate freely. An appliance includes this kind of piezo-active device, en electrical circuit connected to the piezo-electric element, and means for exerting the punctual mechanical action. A system includes this kind of appliance whose electrical circuit can emit electromagnetic waves and a second appliance adapted to receive waves emitted by the first appliance. Applications include controlling a spotlight.Type: GrantFiled: June 14, 2002Date of Patent: August 30, 2005Assignees: Legrand, Legrand SNCInventors: Jean-Pierre Cousy, François Barillot, Franck Claeyssen, Miguel Debarnot
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Patent number: 6927528Abstract: The piezoactive actuator with amplified movement comprises a first sub-assembly formed by a mechanical movement amplifier and a second sub-assembly equipped with piezoactive elements. An interface with a load and an interface with a base, respectively placed at the peaks of a small axis of the shell and designed for actuating the load with respect to the base, define an actuating axis. A longitudinal deformation of the large axis enables a deformation of the small axis to be induced, designed to generate a movement at the interface with the load, the component of which movement along the small axis is amplified. At least one zone made of elastomer material is arranged at least substantially along the actuating axis to dampen deformations and increase the capacity of the actuator to resist external stresses. The actuator comprises at least one free space adjacent to the elastomer material zones in a direction orthogonal to the actuating axis.Type: GrantFiled: January 12, 2004Date of Patent: August 9, 2005Assignee: Cedrat TechnologiesInventors: François Barillot, Frank Claeyssen, Ronan Le Letty
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Publication number: 20040140737Abstract: The piezoactive actuator with amplified movement comprises a first sub-assembly formed by a mechanical movement amplifier and a second sub-assembly equipped with piezoactive elements. An interface with a load and an interface with a base, respectively placed at the peaks of a small axis of the shell and designed for actuating the load with respect to the base, define an actuating axis. A longitudinal deformation of the large axis enables a deformation of the small axis to be induced, designed to generate a movement at the interface with the load, the component of which movement along the small axis is amplified. At least one zone made of elastomer material is arranged at least substantially along the actuating axis to dampen deformations and increase the capacity of the actuator to resist external stresses. The actuator comprises at least one free space adjacent to the elastomer material zones in a direction orthogonal to the actuating axis.Type: ApplicationFiled: January 12, 2004Publication date: July 22, 2004Applicant: CEDRAT TECHNOLOGIESInventors: Francois Barillot, Frank Claeyssen, Ronan Le Letty
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Publication number: 20030159735Abstract: The valve comprises a mobile needle having a movement in the valve body which is controlled by an amplified piezoelectric actuator. A bellows, surrounding an intermediate zone of the needle, is integral at a first end with the valve body and at a second end with the needle so as to isolate the actuator from the pressure chamber. At least one flexible guide blade of the needle is fixed on the one hand to the valve body and on the other hand to the needle. This flexible guiding enables any part sliding with respect to another part, liable to generate wear or contaminating particles, to be avoided, except for the seat and needle.Type: ApplicationFiled: February 21, 2003Publication date: August 28, 2003Applicant: CEDRAT TECHNOLOGIESInventors: Francois Barillot, Gilles Patient, Ronan Le Letty
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Publication number: 20030016089Abstract: A piezo-active device includes a piezo-electric element and an elastically deformable shell in which the piezo-electric element is disposed. The use of this piezo-active device includes, for supplying power to an electrical circuit connected to the piezo-electric element, the step of exerting on the piezo-active device a punctual mechanical action and then allowing the piezo-active device to resonate freely. An appliance includes this kind of piezo-active device, an electrical circuit connected to the piezo-electric element, and means for exerting the punctual mechanical action. A system includes this kind of appliance whose electrical circuit can emit electromagnetic waves and a second appliance adapted to receive waves emitted by the first appliance. Applications include controlling a spotlight.Type: ApplicationFiled: June 14, 2002Publication date: January 23, 2003Inventors: Jean-Pierre Cousy, Francois Barillot, Franck Claeyssen, Miguel Debarnot