Patents by Inventor Pierre Gandel
Pierre Gandel 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: 20170338726Abstract: A polyphase electric motor includes a stator having at least three coils and made up of 12.K radially extending teeth, and a rotor having 5.K pairs of magnetic poles, K being equal to 1 or 2. The rotor includes a core made of a ferromagnetic material and has an alternation of 5K magnetized poles, and 5K non-magnetized salient poles. The stator has teeth with rectangular or trapezoidal cross-sections converging towards the center of the motor.Type: ApplicationFiled: October 23, 2015Publication date: November 23, 2017Applicant: MMT SAInventors: Pierre GANDEL, Mathieu AUBERTIN, Stéphane TAVERNIER, Stéphane BIWERSI
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Publication number: 20150300298Abstract: A motorized valve is made up of a closable pipe, of a valve shutter, of a rotary electromagnetic actuator and of an overmoulding plastic material, the actuator being formed of a stator assembly, of a rotor secured to a spindle, the valve shutter being positioned progressively by the actuator using the spindle and able to shut off the pipe, the overmoulding plastic material surrounding and being secured at least in part to the actuator and forming the pipe at least in part, the static sealing being afforded by overmoulding plastic material common to the actuator and the pipe, and the overmoulding material having passing through it a passage that is rendered fluid-tight for guiding the spindle that connects the valve shutter and the rotor.Type: ApplicationFiled: October 21, 2013Publication date: October 22, 2015Applicant: SONCEBOZ AUTOMOTIVE SAInventors: Cédric MELLERE, Pierre GANDEL
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Patent number: 8860282Abstract: The invention concerns a polyphase motor comprising M phases, M being equal to 2 or 3, the motor consisting of a stator part (1) excited by electric coils and by a magnetized rotor (2). The invention is characterized in that the rotor (2) has a disc-shaped magnetized part with R pairs of alternately poles magnetized in alternating directions in the thickness, R being equal to n*(M+1) or 5*n, and said stator part (1) has S poles, some of which excited at least by an electric coil, S being equal to 8*n, for even M, and 9*n for odd M, n being an integer not less than 1.Type: GrantFiled: September 25, 2002Date of Patent: October 14, 2014Assignee: Moving Magnet TechnologiesInventors: Pierre Gandel, Daniel Prudham
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Patent number: 8502426Abstract: A single phase electromagnetic servo-actuator that includes a rotary actuator which moves a mobile member along a limited travel including a 2N ferromagnetic pole stator structure and at least one excitation coil, the stator structure being made of a material with high magnetic permeability and a rotor having ferromagnetic yoke and a thin magnetized portion of 2N pairs of axially magnetized poles, in alternate directions, and a rotor angular position sensor, the thin magnetized portion being a separate element from the ferromagnetic yoke.Type: GrantFiled: June 22, 2012Date of Patent: August 6, 2013Assignee: SONCEBOZ SAInventors: Guillaume Loussert, Pierre Gandel
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Publication number: 20120326574Abstract: A single phase electromagnetic servo-actuator that includes a rotary actuator which moves a mobile member along a limited travel including a 2N ferromagnetic pole stator structure and at least one excitation coil, the stator structure being made of a material with high magnetic permeability and a rotor having ferromagnetic yoke and a thin magnetized portion of 2N pairs of axially magnetized poles, in alternate directions, and a rotor angular position sensor, the thin magnetized portion being a separate element from the ferromagnetic yoke.Type: ApplicationFiled: June 22, 2012Publication date: December 27, 2012Applicant: SONCEBOZ SAInventors: Guillaume LOUSSERT, Pierre Gandel
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Patent number: 8294561Abstract: The present invention relates to a dashboard indicator module comprising, in a casing, a rotary motor, an output shaft, mechanical reduction device associated with the motor, at least one electrical supply coil, electrical connection tabs linked to the coils leaving the casing and electrical contact elements, characterized in that the electrical contact elements can be fitted on the connection tabs in order to produce solderless connectors on the printed circuit or even removed from the connection tabs in order to allow the connection tabs of the motor to be soldered directly to the printed circuit.Type: GrantFiled: May 7, 2008Date of Patent: October 23, 2012Assignee: Sonceboz Automative SAInventors: Martin Strahm, Michael Geiser, Pierre Gandel, Guillaume Loussert
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Patent number: 8222777Abstract: The invention concerns a rotary single-phase electromagnetic servo actuator consisting of a rotary actuator designed to move a mobile member along a limited travel, including a 2N pole stator structure, N being equal to 1 or 2, and at least one field coil, said stator structure being made of a material with high magnetic permeability, and a rotor having a ferromagnetic yoke and a thin magnetized portion consisting of 2N pairs of axially magnetized poles, in alternate directions and a rotor angular position sensor. The invention is characterized in that the position sensor has a magnetic field emitter integral with the yoke and a receiver for the magnetic field stationary relative to the stator structure.Type: GrantFiled: June 15, 2006Date of Patent: July 17, 2012Assignee: Sonceboz SAInventors: Guillaume Loussert, Pierre Gandel
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Patent number: 7990136Abstract: A variable reluctance analog position device designed to determine the position variation of a target made from a ferromagnetic material. The device includes at least one magnet, the target and the magnet defining a gap therebetween. A magnetosensitive element detects induction variation produced in the gap by relative movement of the target relative to the magnet. The magnet is magnetized in a direction essentially perpendicular to the front surface of the magnet, which defines one edge of the gap. The magnet includes a cavity open at the front surface thereof and the magnetosensitive element is housed in the cavity. Moreover, the target is provided with a specific geometric configuration determined such that the induction variation according to the position of the target corresponds to a pre-defined function.Type: GrantFiled: August 6, 2010Date of Patent: August 2, 2011Assignee: Moving Magent TechnologiesInventors: Didier Frachon, Pierre Gandel
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Patent number: 7906959Abstract: A variable reluctance analog position device designed to determine the position variation of a target made from a ferromagnetic material. The device includes at least one magnet, the target and the magnet defining a gap therebetween. A magnetosensitive element detects induction variation produced in the gap by relative movement of the target relative to the magnet. The magnet is magnetized in a direction essentially perpendicular to the front surface of the magnet, which defines one edge of the gap. The magnet includes a cavity open at the front surface thereof and the magnetosensitive element is housed in the cavity. Moreover, the target is provided with a specific geometric configuration determined such that the induction variation according to the position of the target corresponds to a pre-defined function.Type: GrantFiled: October 7, 2003Date of Patent: March 15, 2011Assignee: Moving Magnet TechnologiesInventors: Didier Frachon, Pierre Gandel
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Publication number: 20110043194Abstract: A variable reluctance analog position device designed to determine the position variation of a target made from a ferromagnetic material. The device includes at least one magnet, the target and the magnet defining a gap therebetween. A magnetosensitive element detects induction variation produced in the gap by relative movement of the target relative to the magnet. The magnet is magnetized in a direction essentially perpendicular to the front surface of the magnet, which defines one edge of the gap. The magnet includes a cavity open at the front surface thereof and the magnetosensitive element is housed in the cavity. Moreover, the target is provided with a specific geometric configuration determined such that the induction variation according to the position of the target corresponds to a pre-defined function.Type: ApplicationFiled: August 6, 2010Publication date: February 24, 2011Applicant: MOVING MAGNET TECHNOLOGIESInventors: Didier FRACHON, Pierre Gandel
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Publication number: 20110043345Abstract: The present invention relates to a dashboard indicator module comprising, in a casing, a rotary motor, an output shaft, mechanical reduction means associated with the motor, at least one electrical supply coil, electrical connection tabs linked to the coils leaving said casing and electrical contact elements, characterised in that said electrical contact elements can be fitted on the connection tabs in order to produce solderless connectors on the printed circuit or even removed from the connection tabs in order to allow the connection tabs of the motor to be soldered directly to the printed circuit.Type: ApplicationFiled: May 7, 2008Publication date: February 24, 2011Applicant: SONCEBOZ AUTOMATIVE SAInventors: Martin Strahm, Michael Geiser, Pierre Gandel, Guillaume Loussert
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Patent number: 7589445Abstract: A linear actuator includes a brushless polyphase synchronous electric motor having a stator and a rotor. The rotor acts on a control element via a driver which can transform the rotation movement thereof into a linear movement over several rotations. Preferably, the inventive actuator comprises elastic and/or magnetic return device which can systematically return the control element to a reference position when the power supply to the motor is cut. The motor has a position detection device which, together with an electronic control unit, is used for the automatic control and regulation of the position of the rotor and, therefore, the control element.Type: GrantFiled: March 4, 2003Date of Patent: September 15, 2009Assignee: Moving Magnet Technologies, M.M.T.Inventors: Pierre Gandel, Daniel Prudham, Jean-Daniel Alzingre, Antoine Foucaut
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Publication number: 20080197728Abstract: The invention concerns a rotary single-phase electromagnetic servo actuator consisting of a rotary actuator designed to move a mobile member along a limited travel, including a 2N pole stator structure, N being equal to 1 or 2, and at least one field coil, said stator structure being made of a material with high magnetic permeability, and a rotor having a ferromagnetic yoke and a thin magnetized portion consisting of 2N pairs of axially magnetized poles, in alternate directions and a rotor angular position sensor. The invention is characterized in that the position sensor has a magnetic field emitter integral with the yoke and a receiver for the magnetic field stationary relative to the stator structure.Type: ApplicationFiled: June 15, 2006Publication date: August 21, 2008Applicant: Sonceboz SAInventors: Guillaume Loussert, Pierre Gandel
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Patent number: 7391205Abstract: An angular-position magnetic-sensor device includes at least one stator and one rotor. A space between said stator and said rotor, defining over substantially 360°, is a main air gap including at least two movable magnetic poles of alternating polarities. The stator is provided with at least one secondary air gap in which there is placed at least one magnetosensitive element. The stator is composed of two pole shoes having angular widths that are substantially equal to 120° and 240° respectively, and the two magnetic poles each have an angular width substantially equal to 120°.Type: GrantFiled: March 31, 2003Date of Patent: June 24, 2008Assignee: MMT S.A.Inventors: Pierre Gandel, Daniel Prudham, Didier Frachon, Bruno Cavallier
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Patent number: 7218022Abstract: A linear actuator for displacing a member or a set of movable members, having an electric stepping motor (7) with a rotor having a portion in the form of a nut (9), and a linear-movement screw (12) engaging the nut portion of the rotor. The screw has a coupling portion (19) disposed at an extremity and intended to engage a coupling portion (5) of the movable member to be displaced.Type: GrantFiled: January 11, 2005Date of Patent: May 15, 2007Assignee: Société Industrielle de Sonceboz, S.A.Inventors: Jean-François Pfister, Pierre Gandel
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Publication number: 20060125473Abstract: A variable reluctance analog position device designed to determine the position variation of a target made from a ferromagnetic material. The device includes at least one magnet, the target and the magnet defining a gap therebetween. A magnetosensitive element detects induction variation produced in the gap by relative movement of the target relative to the magnet. The magnet is magnetized in a direction essentially perpendicular to the front surface of the magnet, which defines one edge of the gap. The magnet includes a cavity open at the front surface thereof and the magnetosensitive element is housed in the cavity. Moreover, the target is provided with a specific geometric configuration determined such that the induction variation according to the position of the target corresponds to a pre-defined function.Type: ApplicationFiled: October 7, 2003Publication date: June 15, 2006Inventors: Didier Frachon, Pierre Gandel
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Publication number: 20060123903Abstract: A position sensor, designed in particular for detecting a steering column torsion, including a first magnetic structure including a plurality of magnets and a second magnetic structure including two ferromagnetic rings having a plurality of teeth and defining an air gap. At least a magneto-sensitive element is placed in the air gap. The first and second magnetic structures are respectively integral with two parts in relative rotation. The two ferromagnetic rings are nested and have each a substantially tubular part forming axially oriented teeth connected by a flux-closing zone, the detecting air gap being delimited by the flux-closing zones.Type: ApplicationFiled: February 8, 2006Publication date: June 15, 2006Applicant: MOVING MAGNET TECHNOLOGIES (S.A.)Inventors: Pierre Gandel, Didier Frachon, Didier Angleviel, Claude Oudet, Daniel Prudham
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Patent number: 7028545Abstract: The invention concerns a position sensor, designed in particular for detecting a steering column torsion, consisting of a first magnetic structure including a plurality of magnets and a second magnetic structure including two ferromagnetic rings (6, 7) having a plurality of teeth (11, 12) and defining an air gap wherein is placed at least a magneto-sensitive element (15), the two magnetic structures being respectively integral with two parts in relative rotation. The invention is characterised in that the two ferromagnetic rings (6, 7) are nested and have each a substantially tubular part forming axially oriented teeth (11, 123) connected by a flux-closing zone (13, 14), the detecting air gap being delimited by said flux-closing zones.Type: GrantFiled: February 27, 2002Date of Patent: April 18, 2006Assignee: Moving Magnet Technologies (S.A.)Inventors: Pierre Gandel, Didier Frachon, Didier Angleviel, Claude Oudet, Daniel Prudham
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Publication number: 20050218727Abstract: A linear actuator includes a brushless polyphase synchronous electric motor having a stator and a rotor. The rotor acts on a control element via a driver which can transform the rotation movement thereof into a linear movement over several rotations. Preferably, the inventive actuator comprises elastic and/or magnetic return device which can systematically return the control element to a reference position when the power supply to the motor is cut. The motor has a position detection device which, together with an electronic control unit, is used for the automatic control and regulation of the position of the rotor and, therefore, the control element.Type: ApplicationFiled: March 4, 2003Publication date: October 6, 2005Applicant: MOVING MAGNET TECHNOLOGIES M.M.T.Inventors: Pierre Gandel, Daniel Prudham, Jean-Daniel Alzingre, Antoine Foucaut
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Publication number: 20050173994Abstract: A linear actuator for displacing a member or a set of movable members, having an electric stepping motor (7) with a rotor having a portion in the form of a nut (9), and a linear-movement screw (12) engaging the nut portion of the rotor. The screw has a coupling portion (19) disposed at an extremity and intended to engage a coupling portion (5) of the movable member to be displaced.Type: ApplicationFiled: January 11, 2005Publication date: August 11, 2005Inventors: Jean-Francois Pfister, Pierre Gandel