Abrégé

The present invention relates to an aqueous geopolymer composition based on dredging sediments, to a geopolymer material obtained from the aqueous geopolymer composition, to the use of the aqueous geopolymer composition as a binder for producing a concrete, a filling grout, a concrete pavement, a compacted road layer, bricks, a retaining wall, a dock breakwater, or a precast concrete, and to a concrete comprising the geopolymer material.

Classes IPC  ?

• C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
• C04B 18/04 - DéchetsRésidus

Abrégé

An implantable device for cardiac assistance by direct compression, including a base forming a receptacle for receiving the lower part of a heart, a support for fixing the lower part of the heart to the base, at least one finger extending longitudinally between a free upper first end and a curved lower second end inside the base, the finger being mounted on the base via a first pivot connection, a contact interface mounted adjustably and movably on the free end, an actuator for actuating the tilting movement of the finger about the pivot connection, and a control unit for controlling the actuator is disclosed.

Classes IPC  ?

• A61M 60/191 - Pompes ou dispositifs de pompage implantables, c.-à-d. que le sang est pompé à l’intérieur du corps du patient implantables dans ou sur le cœur, ou autour du cœur agissant mécaniquement sur l’extérieur du cœur natif du patient, p. ex. structures compressives placées autour du cœur
• A61M 60/289 - Dispositifs de circulation mécanique pour assistance de la fonction cardiaque résiduelle par action mécanique sur le cœur natif ou la structure de vaisseaux sanguins du patient, p. ex. dispositifs de compression cardiaque directe
• A61M 60/47 - Détails concernant l’entraînement pour des dispositifs d’actionnement circulatoire mécanique la force agissant sur les moyens d’actionnement étant mécanique, p. ex. éléments à entraînement mécanique de pincement d’un vaisseau sanguin
• A61M 60/523 - Régulation par des données du patient en temps réel par les données d’écoulement du sang, p. ex. en provenance de transducteurs de mesure de l’écoulement du sang

Abrégé

A method for focusing acoustic waves on an interface between two layers of a multilayer structure includes providing laser means able to emit a laser beam toward an exterior surface of the multilayer structure to produce a longitudinal wave from the centre of a laser-beam spot projected onto the exterior surface and a transverse wave from the periphery of said spot, determining the distance between said interface and the exterior surface, determining one or more propagation velocities of each of the longitudinal wave and the transverse wave in the one or more layers passed through by said waves to reach said interface, and determining a radius of the laser-beam spot depending on the one or more propagation velocities and on said distance so that the time taken by the longitudinal wave to reach said interface is equal to three times the time taken by the transverse wave to reach said interface.

Classes IPC  ?

• G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné

Abrégé

A thermal energy storage device (1) comprises a storage unit, formed by a reservoir (3) for receiving a thermal energy storage material (5) and a closure device (2) configured to close the opening of the reservoir, and a sealing system for sealing the storage unit, said thermal energy storage material (5) consisting of anhydrous lithium hydroxide having a purity greater than 96% or lithium hydroxide monohydrate with a purity greater than 56%.

Classes IPC  ?

• F28D 20/02 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en généralAppareils échangeurs de chaleur de régénération non couverts par les groupes ou utilisant la chaleur latente
• C09K 5/06 - Substances qui subissent un changement d'état physique lors de leur utilisation le changement d'état se faisant par passage de l'état liquide à l'état solide, ou vice versa

Abrégé

A modular comb element for a machine for automatically cutting a mat of sheets of material. The cutting machine includes a plurality of cutting supports. The comb element includes a plate forming a support from which a first and a second row of teeth extend longitudinally. The teeth of the first row alternate with the teeth of the second row, and a free end of the teeth of the first row are farther from a downstream edge of the support than a free end of the teeth of the second row of teeth. A ramp is mounted on the downstream edge of the support and inclined with respect to the latter so as to limit the contact surface between the mat of sheets and the comb element. Air injection means are at a downstream edge of the ramp over an entire width thereof.

Classes IPC  ?

• B26D 7/20 - Bancs à couper
• B26D 7/01 - Moyens pour maintenir ou mettre en position la pièce
• B26D 7/06 - Dispositions pour faire avancer ou évacuer les pièces autres que les feuilles, les bandes ou les filaments
• B26D 7/32 - Moyens pour exécuter d'autres opérations en combinaison avec la coupe pour transporter ou empiler le produit coupé

Abrégé

The present invention relates to an assembly for a turbomachine turbine extending along an axis (X), comprising: —an ejection cone (100) comprising a radially outer annular wall (102) defining a flow duct for a flow of hot gases and a sound box radially arranged inside the outer annular wall (102), the sound box comprising a radially inner annular wall (104), —a connecting member (106) intended to be axially inserted between the exhaust housing and the ejection cone (100), the connecting member (106) comprising an upstream annular flange (108) intended to be attached to the exhaust housing and a plurality of downstream securing tabs (110) connected to the inner annular wall (104), —an annular sealing shroud (112) comprising an upstream portion surrounding the securing tabs (110) of the connecting member (106) so as to cover the spaces circumferentially located between the securing tabs (110) and axially located between the upstream annular flange (108) of the connecting member (106) and the radially inner annular wall (104).

Classes IPC  ?

• B65H 54/02 - Bobinage et va-et-vient du matériau sur noyaux, bobines, tubes ou sur mandrins ou gabarits pour paquets analogues
• B22F 10/22 - Dépôt direct de métal fondu
• B33Y 40/00 - Opérations ou équipements auxiliaires, p. ex. pour la manipulation de matériau
• B22F 12/50 - Moyens d’alimentation en matériau, p. ex. têtes

Abrégé

The invention relates to a method for automatically controlling the triggering of the sharpening of the cutting edge of a cutting blade for a cutting machine, involving determining (S02) components of a torsor of the mechanical actions at the point of guidance of the cutting blade in the frame of reference of the blade; determining (S03) a permissible threshold value for a variable established from at least one of the components of the torsor of the mechanical actions and as a function of geometric parameters of the cutting blade and of thickness and material characteristics of the bat that is to be cut; monitoring, during the cutting of the material, variations in amplitude of the variable selected for determining the threshold value; and automatically triggering (S07) an alert to call for a cycle of sharpening the cutting edge of the cutting blade as soon the amplitude of the variable selected for determining the value of the threshold reaches said threshold value.

Classes IPC  ?

• G05B 19/4065 - Contrôle du bris, de la vie ou de l'état d'un outil

Abrégé

The invention relates to a method for determining components of a mechanical action torsor at the guiding point of a cutting blade (L) for a cutting machine, the blade being guided in a presser foot (P) of a cutting head of the machine, the method comprising the positioning of a five-component dynamometer on the presser foot, the dynamometer comprising a plurality of sensors for determining a frontal force, a lateral force, a rolling moment, a pitching moment and a yawing moment of the cutting blade, the establishment of a calibration matrix of the dynamometer, and the determination of the forces in three dimensions to which the cutting blade is subjected, on the basis of the measurements obtained by the sensors and the calibration matrix.

Classes IPC  ?

• B26F 1/38 - DécoupageDécoupage à l'emporte-pièce
• B26D 5/00 - Dispositions pour manœuvrer et commander les machines ou les dispositifs de coupe, découpage, poinçonnage, perforation ou séparation autrement que par coupe

Abrégé

The present invention relates to a method for producing (1) a reel for a filament, said method comprising the steps of: - extruding (2) a blend of crystalline or semicrystalline binders and at least 90% by weight or 60% by volume of metal or ceramic powder so as to obtain a filament; - quenching (3) said filament at a predetermined quenching temperature in order to reduce, by between 5% and 15%, a degree of crystallinity in said binders; - winding (4) said filament around the reel at a temperature of between 10°C and a temperature below the quenching temperature.

Classes IPC  ?

• B29C 48/05 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée filamentaire, p. ex. fils
• B29C 48/88 - Traitement thermique de l’écoulement de matière extrudée, p. ex. refroidissement
• B29C 48/02 - Petits appareils d’extrusion, p. ex. extrudeuses à main, jouets ou de laboratoire

Abrégé

A modular cutting-support element with suction in a machine for automatic cutting of sheet material by means of blades, includes a plurality of bristles arranged in the same single line, at least some of the bristles each having a base rigidly connected to a bearing plate intended to be mounted on a support, a head opposite the base on which a sheet material to be cut is intended to rest, and a stem connecting the head to the base, the largest cross-section of which is strictly included in the largest cross-section of the head, the bearing plate comprising, on each of its side surfaces, a plurality of transverse channels for the passage of suction air providing communication between an upper surface of the bearing plate from which the bristles extend and an inner surface opposite the upper surface.

Classes IPC  ?

• B26D 7/01 - Moyens pour maintenir ou mettre en position la pièce
• B26D 7/20 - Bancs à couper

Abrégé

A machining spindle that includes a tool-holder shaft (2), a first actuator connected to a coupling member (11) slidably connected to a first section (21) of the shaft to rotate the shaft, a second actuator connected to a nut helically connected to a second section (22) of the shaft to move the shaft axially and a control rod (24) of a tool-holder attachment system connected to the second section by a full connection. The spindle includes a locking arrangement (40) mounted movable between the first and second sections by a switchover arrangement (50), between a first position in which the first and second sections are in full connection and a second position allowing axial movement of the second section relative to the first section, enabling the control rod to be moved axially under the action of the second actuator to control the attachment system in a released position of the tool holder.

Classes IPC  ?

• B23B 31/26 - Mandrins de serrage caractérisés par le système de commande à distance des moyens de serrage utilisant des transmissions mécaniques dans la broche de travail
• B23C 5/26 - Fixation des fraises sur la broche d'entraînement
• B23Q 5/32 - Avance des broches de travail

Abrégé

Method for manufacturing a tridimensional blood vessel model using stereolithography and optionally cell culture. Applications include surgery training, research on pathology such as SCDs and in vitro drug testing e.g. for antiplatelets. Existing models are not compatible with cell culture and cannot withstand high pressure, as opposed to the present invention. Stereolithography allows modelling of complex vessels such as carotid siphons as opposed to other existing methods.

Classes IPC  ?

• G09B 23/30 - Modèles anatomiques
• C12N 5/071 - Cellules ou tissus de vertébrés, p. ex. cellules humaines ou tissus humains
• G06T 19/20 - Édition d'images tridimensionnelles [3D], p. ex. modification de formes ou de couleurs, alignement d'objets ou positionnements de parties
• G06T 7/00 - Analyse d'image
• B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective

Abrégé

The present invention relates to an implantable device for cardiac assistance by direct compression, characterized in that it comprises: - a base (1) forming a receptacle for receiving the lower part of a heart (9), - a support (2) for fixing the lower part of the heart to the base, - at least one finger (3) extending longitudinally between a free upper first end (35) and a curved lower second end (36) inside the base, the finger being mounted on the base via a first pivot connection (12), - a contact interface (4) mounted adjustably and movably on the free end, - means (5, 6) for actuating the tilting movement of the finger about the pivot connection, - a control unit (10) for controlling the actuating means.

Classes IPC  ?

• A61M 60/191 - Pompes ou dispositifs de pompage implantables, c.-à-d. que le sang est pompé à l’intérieur du corps du patient implantables dans ou sur le cœur, ou autour du cœur agissant mécaniquement sur l’extérieur du cœur natif du patient, p. ex. structures compressives placées autour du cœur
• A61M 60/289 - Dispositifs de circulation mécanique pour assistance de la fonction cardiaque résiduelle par action mécanique sur le cœur natif ou la structure de vaisseaux sanguins du patient, p. ex. dispositifs de compression cardiaque directe
• A61M 60/465 - Détails concernant l’entraînement pour des dispositifs d’actionnement circulatoire mécanique
• A61M 60/839 - Détails structurels autres que ceux relatifs à l’entraînement de la pompe des dispositifs pour l'actionnement de la circulation mécanique
• A61M 60/873 - Dispositifs d’alimentation en énergieConvertisseurs à cet effet spécialement adaptés au transfert d’énergie sans fil ou transcutané, p. ex. à la charge par induction
• A61M 60/863 - Anneaux sommitaux
• A61M 60/508 - Moyens de commande électroniques, p. ex. pour la régulation par rétroaction
• A61M 60/47 - Détails concernant l’entraînement pour des dispositifs d’actionnement circulatoire mécanique la force agissant sur les moyens d’actionnement étant mécanique, p. ex. éléments à entraînement mécanique de pincement d’un vaisseau sanguin
• A61M 60/523 - Régulation par des données du patient en temps réel par les données d’écoulement du sang, p. ex. en provenance de transducteurs de mesure de l’écoulement du sang
• A61M 60/515 - Régulation par des données du patient en temps réel
• A61M 60/531 - Régulation par des données du patient en temps réel par des données de tension artérielle, p. ex. provenant de capteurs de tension
• A61M 60/562 - Moyens de commande électroniques, p. ex. pour la régulation par rétroaction pour pulser l’écoulement du sang dans les pompes pour le sang qui ne créent intrinsèquement pas un écoulement pulsé

Abrégé

The present document relates to a method for focusing acoustic waves on an interface (106) between two layers (108, 110) of a multilayer structure (104), the method comprising: - providing laser means able to emit a laser beam (102) toward an exterior surface (112) of the multilayer structure with a view to producing a longitudinal wave (114) from the centre of a laser-beam spot projected onto the exterior surface (112) and a transverse wave (116) from the periphery of said spot, - determining the distance between said interface (106) and the exterior surface (112), - determining one or more propagation velocities of the longitudinal wave and one or more propagation velocities of the transverse wave in the one or more layers passed through by said waves to reach said interface, - determining a radius (r) of the laser-beam spot depending on the one or more propagation velocities and on said distance so that the time taken by the longitudinal wave to reach said interface is equal to three times the time taken by the transverse wave to reach said interface.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• B23K 26/00 - Travail par rayon laser, p. ex. soudage, découpage ou perçage
• B23K 26/073 - Détermination de la configuration du spot laser
• G01L 1/25 - Mesure des forces ou des contraintes, en général par l'utilisation de rayonnement (ondes ou particules), p. ex. rayons X, neutrons
• G01N 1/44 - Traitement d'échantillons mettant en œuvre un rayonnement, p. ex. de la chaleur
• G01N 19/04 - Mesure de la force d'adhérence entre matériaux, p. ex. du ruban adhésif, d'un revêtement
• G01N 29/24 - Sondes

Abrégé

The invention relates to a modular comb element (10) for a machine (2) for automatic cutting of a mat of sheets of material, the cutting machine comprising a plurality of cutting support members (4) each having a plurality of bristles (6) on which the mat (M) rests, the comb element comprising a plate forming a support member (12) from which a first and a second row of teeth extend longitudinally, the teeth (14) in the first row alternating with the teeth (16) in the second row, and a free end of the teeth in the first row being further away from an upstream edge of the support member than a free end of the teeth in the second row of teeth, a ramp (18) mounted on the upstream edge of the support member and inclined relative to the latter so as to limit the contact surface between the mat of sheets and the comb element, and means for applying air to an upstream edge of the ramp across the entire width of the latter in order to facilitate unloading/loading of the mat of sheets.

Classes IPC  ?

• B26D 7/06 - Dispositions pour faire avancer ou évacuer les pièces autres que les feuilles, les bandes ou les filaments
• B26D 7/20 - Bancs à couper
• B26D 7/32 - Moyens pour exécuter d'autres opérations en combinaison avec la coupe pour transporter ou empiler le produit coupé

Abrégé

Polyphase electric machine (10) comprising a first motion actuation assembly (20) and a rotatable second motion actuation assembly (30), the first and second motion actuation assemblies (20, 30) together defining first and second opposing lateral faces (40, 41) of the polyphase electric machine; the polyphase electric machine further comprising at least one phase generator (50) comprising a plurality of control assemblies (51), each control assembly (51) containing an input module (51a) and an output module (51b), the input and output modules (51a, 51b) being arranged on the first lateral face (40) and on the second lateral face (41) of the polyphase electric machine (10).

Classes IPC  ?

• H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
• H02K 9/22 - Dispositions de refroidissement ou de ventilation par un matériau solide conducteur de la chaleur s'encastrant dans, ou mis en contact avec, le stator ou le rotor, p. ex. des ponts de chaleur
• H02K 21/12 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants
• H02K 9/06 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
• H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement

Abrégé

The invention relates to a machining system comprising an electric spindle (10) on which tool holders (PO1, PO2, PO3) can be mounted that are able to contain several types of actuator and/or sensor, and a data acquisition and control member for acquiring data from the sensors via at least one signal conditioning circuit (Acq_1 - Acq_4) and controlling the actuators via at least one power electronics circuit (EP_1, EP_2), the system being characterised in that it comprises a switching matrix (40) and a control module (31) capable of receiving unique identification information of the tool holder mounted on the electric spindle and of configuring a switching arrangement of the matrix in order to selectively connect respective power and data paths of the power electronics circuit and the conditioning circuit to the identified tool holder.

Classes IPC  ?

• B23B 35/00 - Méthodes d'alésage ou de perçage ou autres méthodes de travail impliquant l'utilisation de machines à aléser ou à percerUtilisation d'équipements auxiliaires en relation avec ces méthodes
• B23B 29/12 - Agencements particuliers des porte-outils
• B23B 47/34 - Agencements pour enlever les copeaux des trous pendant le perçageAgencements fixés à l'outil pour briser les copeaux
• G06K 19/00 - Supports d'enregistrement pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques

Abrégé

The present document relates to a method for winding a filament (4) for an additive manufacturing device, comprising the steps of: • - providing a filament (4) which is filled with at least 80% metal powder by mass; • - heating the filament (4) up to a temperature of at least 70°C and keeping the filament at this temperature; • - winding the filament (4) about the axis of a coil (110, 142), which is preferably made of metal, the diameter of the coil (110, 142) in the empty state being greater than or equal to a diameter of 100 mm.

Classes IPC  ?

• B22F 12/50 - Moyens d’alimentation en matériau, p. ex. têtes
• B29C 64/321 - Alimentation
• B65H 54/02 - Bobinage et va-et-vient du matériau sur noyaux, bobines, tubes ou sur mandrins ou gabarits pour paquets analogues
• B22F 10/18 - Formation d’un corps vert par mélange de liant avec du métal sous forme de filaments, p. ex. par fabrication à filaments fondus
• B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
• B33Y 40/00 - Opérations ou équipements auxiliaires, p. ex. pour la manipulation de matériau

Abrégé

The invention relates to a method for determining components of a mechanical action torsor at the guiding point of a cutting blade (L) for a cutting machine, the blade being guided in a presser foot (P) of a cutting head of the machine, the method comprising the positioning of a five-component dynamometer on the presser foot, the dynamometer comprising a plurality of sensors for determining a frontal force, a lateral force, a rolling moment, a pitching moment and a yawing moment of the cutting blade, the establishment of a calibration matrix of the dynamometer, and the determination of the forces in three dimensions to which the cutting blade is subjected, on the basis of the measurements obtained by the sensors and the calibration matrix.

Classes IPC  ?

• B26D 5/00 - Dispositions pour manœuvrer et commander les machines ou les dispositifs de coupe, découpage, poinçonnage, perforation ou séparation autrement que par coupe
• B26F 1/38 - DécoupageDécoupage à l'emporte-pièce

Abrégé

Modular support element for aspirated cutting in a machine for automatic cutting of sheet material The invention relates to a modular support element (4) for aspirated cutting in a machine for automatic cutting of sheet material by means of blades, comprising a plurality of bristles (6) arranged in the same single line, at least some of the bristles each having a base (8) rigidly connected to a bearing plate (10) intended to be mounted on a stand, a head (12) opposite the base on which a sheet material to be cut is intended to rest, and a rod (9) connecting the head to the base, the largest cross-section of which is strictly included in the largest cross-section of the head, the bearing plate comprising, on each of its side surfaces, a plurality of transverse channels (18) for the passage of aspirated air providing communication between an upper surface of the bearing plate from which the bristles extend and an inner surface opposite the upper surface.

Classes IPC  ?

• B26D 7/01 - Moyens pour maintenir ou mettre en position la pièce
• B26D 7/06 - Dispositions pour faire avancer ou évacuer les pièces autres que les feuilles, les bandes ou les filaments
• B26D 7/20 - Bancs à couper

Abrégé

The invention relates to a machining spindle comprising a tool-holder shaft (2), a first actuator connected to a coupling member (11) slidably connected to a first section (21) of the shaft in order to rotate the shaft, a second actuator connected to a nut helically connected to a second section (22) of the shaft in order to move the shaft axially and a control rod (24) of a tool-holder attachment system connected to the second section by a full connection. The spindle comprises locking means (40) mounted movable between the first and second sections by means of switchover means (50), between a first position in which the first and second sections are in full connection and a second position allowing axial movement of the second section with respect to the first section, enabling the control rod to be moved axially under the action of the second actuator in order to control the attachment system in a released position of the tool holder.

Classes IPC  ?

• B23B 31/26 - Mandrins de serrage caractérisés par le système de commande à distance des moyens de serrage utilisant des transmissions mécaniques dans la broche de travail
• B23B 31/28 - Mandrins de serrage caractérisés par le système de commande à distance des moyens de serrage utilisant des moyens électriques ou magnétiques dans le mandrin
• B23Q 5/32 - Avance des broches de travail
• B23Q 5/40 - Avance par transmission mécanique des autres organes supportant les outils ou les pièces, p. ex. avance des traînards, des glissières d'outils à avance continue par un arbre, p. ex. une vis-mère

Abrégé

Method for manufacturing a tridimensional blood vessel model using stereolithography and optionally cell culture. Applications include surgery training, research on pathology such as SCDs and in vitro drug testing e.g. for antiplatelets. Existing models are not compatible with cell culture and cannot withstand high pressure, as opposed to the present invention. Stereolithography allows modelling of complex vessels such as carotid siphons as opposed to other existing methods.

Classes IPC  ?

• G09B 23/30 - Modèles anatomiques

Abrégé

The present invention relates to equipment (100) for selectively depositing, by shockwave-induced spraying, at least one particle (11) on a deposition surface (141) of a receiver substrate (140), said equipment comprising: - at least one laser source (101) configured to emit a laser beam (103), said laser beam being made up of a series of light pulses; - a substrate carrier (130) to which the substrate (140) is fastened; - a shockwave-generating layer (120) comprising a first surface (121) that is oriented toward the laser beam and a second surface (122) that is oriented toward the deposition surface (141) of the substrate; - an optical system (102) for directing and focusing said laser beam toward a focal region of the first surface (121) of the generating layer; - said second surface (122) comprising a plurality of cavities (123), each of the cavities housing at least one particle (11); - said laser beam being configured to generate a plasma (104) in the focal region on the first surface (121) of the generating layer and a shockwave (105) that propagates within the generating layer (120) from the first surface to the second surface (122) of the generating layer in order to spray at least one particle (11) in the direction of the deposition surface (141) of the substrate (140).

Classes IPC  ?

• B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
• B22F 3/08 - Compactage seul par force explosive
• B22F 3/087 - Compactage seul utilisant des impulsions de haute énergie, p. ex. des impulsions de champ magnétique
• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
• C23C 24/04 - Dépôt de particules par impact
• C23C 14/04 - Revêtement de parties déterminées de la surface, p. ex. au moyen de masques

Abrégé

The invention relates to a picosecond acoustic measuring system (100) for analysing a sample (5). According to the invention, the system comprises a transduction means which has a first interface (6) in contact with a transparent substrate (4) and a second interface (3) in contact with the sample (5), a first laser source (101) which is configured to generate a pump beam (201), a second laser source (102) which is configured to generate a first sensor beam (203) and a second sensor beam (204), the pump beam being configured to generate acoustic waves in the transducer means (4), the first sensor beam being configured so as to detect in real time a variation of the coefficient of acoustic reflection of the second interface (3) by elasto-optical coupling, the second sensor beam (204) being configured so as to detect in real time the Brillouin oscillations which are linked to the Brillouin interaction between the second sensor beam (204) and some of the acoustic waves which are propagated in the sample, a photodetection system (116, 117) which is configured to measure simultaneously and at the same location of the sample a signal of variation of the reflectivity at the second interface (3) linked to the Brillouin oscillations and a signal of variation of the reflectivity at the first interface (6) linked to a variation of the coefficient of the acoustic reflection.

Classes IPC  ?

• G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné
• G01N 21/63 - Systèmes dans lesquels le matériau analysé est excité de façon à ce qu'il émette de la lumière ou qu'il produise un changement de la longueur d'onde de la lumière incidente excité optiquement
• G01N 29/24 - Sondes

Abrégé

A piezoelectric actuator control device comprising a first voltage converter supplying a DC voltage on a DC power supply bus to which is connected a second voltage converter capable of generating a variable excitation voltage under the control of a control computer, the second voltage converter comprising two switch half-bridges mounted in parallel with the terminals of a bus capacitor, the control computer being suitable for controlling the two switch half-bridges according to a first control configuration, in which they are controlled independently in order to each supply a voltage in a range between zero and a maximum positive value and according to a second control configuration, in which they are jointly controlled as a full-bridge for supplying a voltage between a minimum negative value and said maximum positive value.

Classes IPC  ?

• H01L 41/04 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails - Détails d'éléments piézo-électriques ou électrostrictifs
• H02N 2/08 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires utilisant des ondes progressives, p. ex. moteurs linéaires
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• H02M 11/00 - Systèmes de transformation de puissance électrique non couverts par les autres groupes de la présente sous-classe
• H02N 2/06 - Circuits d'entraînementDispositions pour la commande

Abrégé

The invention relates to an acoustic phase mask, the phase mask having a variation of the acoustic index n, characterized in that the phase mask comprises a body comprising: - at least one matrix formed by a deformable solid material, having a shear modulus of less than 10 MPa, and - pores formed in the matrix, the pores being predominantly filled with gas, the deformable solid material extending between the pores, the body having a porosity φ of less than or equal to 50%, and a controlled porosity φ gradient leading to a variation of the acoustic index n spatially in the body.

Classes IPC  ?

• G10K 11/165 - Sélection de matériaux de particules dans une matrice
• B01J 2/06 - Procédés ou dispositifs pour la granulation de substances, en généralTraitement de matériaux particulaires leur permettant de s'écouler librement, en général, p. ex. en les rendant hydrophobes par division du produit liquide en gouttelettes, p. ex. par pulvérisation, et solidification des gouttelettes en milieu liquide

Abrégé

The present invention concerns a non-resorbable biocompatible fabric, having pores, that is suitable for being implanted, in particular in the pelvic region of a patient. According to the invention, the fabric characteristically has a density per unit surface area substantially equal to or greater than 16 g/m2and substantially equal to or less than 22 g/m2and substantially equal to 18 g/m2, said pores are through-pores and comprise main pores that are optionally each surrounded by at least one secondary pore and said main pores have a mean diameter substantially greater than or equal to 1.5 mm and substantially less than or equal to 3.5 mm, preferably less than 3.0 mm and in particular equal to 2.1 mm. The invention also concerns a prosthesis, in particular for the treatment of vaginal prolapse, that comprises such a fabric.

Classes IPC  ?

• A61F 2/00 - Filtres implantables dans les vaisseaux sanguinsProthèses, c.-à-d. éléments de substitution ou de remplacement pour des parties du corpsAppareils pour les assujettir au corpsDispositifs maintenant le passage ou évitant l'affaissement de structures corporelles tubulaires, p. ex. stents
• D04B 21/00 - Procédés de tricotage chaîne pour la production de tricots ou articles qui ne dépendent pas de l'emploi de machines particulièresTricots ou articles définis par de tels procédés
• D04B 1/00 - Procédés de tricotage trame pour la production de tricots ou d'articles ne dépendant pas de l'emploi de machines spécialesTricots ou articles définis par de tels procédés

Abrégé

Some embodiments are directed to an analysis device for board sports, intended to be secured to a board, such as a surfboard or ski, at the interface with the user. The device includes: a force sensor designed to capture one or more forces generated by the user on the board; a position and motion sensor designed to capture the position, speed and acceleration of the board in space; and a processing unit or processor connected to the force sensor and to the position and motion sensor and designed to synchronize and process the data from the sensors.

Classes IPC  ?

• A63F 9/24 - Jeux utilisant des circuits électroniques, non prévus ailleurs
• A63B 69/00 - Appareils d'entraînement ou appareils destinés à des sports particuliers
• A63F 13/807 - Glisse sur des surfaces, p. ex. avec des skis, des patins ou des planches
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• B63B 32/00 - Planches de sports nautiquesAccessoires à cet effet
• B63B 32/70 - Accessoires non spécialement adaptés à un type particulier de planche, p. ex. couches amortissantes ou éléments de flottabilité
• A63B 24/00 - Commandes électriques ou électroniques pour les appareils d'exercice des groupes
• A63B 71/06 - Dispositifs indicateurs ou de marque pour jeux ou joueurs
• A63C 5/06 - Skis ou surfs des neiges comprenant sur leur dessus des dispositifs spéciaux, p. ex. un guidon
• A63C 11/00 - Accessoires pour pratiquer le ski ou le surf des neiges
• A61B 5/11 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre

Abrégé

The invention concerns a piezoelectric actuator control device comprising a first voltage converter (20) supplying a DC voltage on a DC power supply bus (40) to which is connected a second voltage converter (10) capable of generating a variable excitation voltage under the control of a control computer (50), said second voltage converter comprising two switch half-bridges (11, 12) mounted in parallel with the terminals of a bus capacitor (Cdc), the control computer being suitable for controlling the two switch half-bridges according to a first control configuration, in which they are controlled independently in order to each supply a voltage in a range between zero and a maximum positive value (Umax) and according to a second control configuration, in which they are jointly controlled as a full-bridge for supplying a voltage between a minimum negative value and said maximum positive value.

Classes IPC  ?

• H02N 2/06 - Circuits d'entraînementDispositions pour la commande
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• H02M 11/00 - Systèmes de transformation de puissance électrique non couverts par les autres groupes de la présente sous-classe

Abrégé

The invention relates to a detector device for detecting a threshold speed of displacement of a fluid, the detector device comprising a transducer and being configured to exert a first non-zero force in a first direction when the speed of the fluid is less than the threshold speed and to exert a second non-zero force in a second direction when the speed of the fluid is greater than the threshold speed, the first and the second direction being identical or substantially identical and the first and the second force being directed in opposite directions.

Classes IPC  ?

• G01P 5/02 - Mesure de la vitesse des fluides, p. ex. d'un courant atmosphériqueMesure de la vitesse de corps, p. ex. navires, aéronefs, par rapport à des fluides en mesurant les forces exercées par le fluide sur des corps solides, p. ex. anémomètre
• G01F 1/28 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques par détection des effets dynamiques de l’écoulement par débitmètre à force d'entraînement, p. ex. du type à palette ou à poussée

Abrégé

The invention relates to an analysis device for board sports, intended to be secured to a board (1), such as a surfboard or ski, at the interface with the user. The device comprises: a force sensor (3) designed to capture one or more forces generated by the user on the board; a position and motion sensor (5) designed to capture the position, speed and acceleration of the board in space; and a processing unit (7) connected to the force sensor and to the position and motion sensor and designed to synchronise and process the data from the sensors.

Classes IPC  ?

• A63F 13/807 - Glisse sur des surfaces, p. ex. avec des skis, des patins ou des planches
• B63B 35/79 - Planches de glisse, p.ex. planches à voile 
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus

Abrégé

The subject of the present invention relates to an optical process for measuring a variation in the temperature of an object (O), comprising: an emitting step (S1) consisting in emitting, in the direction of said object (O), a first incident terahertz electromagnetic wave (W1_inc), and a measuring step (S2) comprising measuring (S2_3), using a sensor sensitive to terahertz radiation (20), a variation in the amplitude of the electromagnetic radiation of a second electromagnetic wave (W2_ref, W2_tra) in order to determine the variation in the temperature of said object (O).

Classes IPC  ?

• G01K 11/00 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou
• G01K 11/12 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant le changement de couleur, de translucidité ou de réflectance

Abrégé

Method for reconstruction of a three-dimensional model of an osteo-articular structure of a patient, wherein a) bi-dimensional patient-specific image data (41) of said structure is provided; (d) a preliminary solution, corresponding to a previously established solution model of the structure, is provided (42) from a base (21), said preliminary solution comprising a priori knowledge of the corresponding structure, previously established from structures of the same type, said preliminary solution comprising surface data describing the coordinates of the surface of the solution model, and bulk data describing at least one characteristic of the inside of the solution model; the preliminary solution is modified (42′, 43, 44, 46, 47, 48) to be brought in concordance with said patient-specific image data.

Classes IPC  ?

• G06G 7/48 - Calculateurs analogiques pour des procédés, des systèmes ou des dispositifs spécifiques, p. ex. simulateurs
• G06T 7/00 - Analyse d'image

Abrégé

b), a reconstruction of the second object (T12) is obtained based on the modified first object and on the database of structure (21).

Classes IPC  ?

• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales

Abrégé

A method comprising: - providing acquisition data (34,38) of a patient, comprising acquisition data of a bone structure of the patient in a given position, providing a knowledge base (22,43,47), comprising data related to such bone structures, - determining a patient-specific position-specific finite-element model of the bone structure comprising: patient-specific three-dimensional geometry, patient-specific mechanical characteristics of the bone structure, and. patient-specific position-specific mechanical load applied to the bone structure in the position.

Classes IPC  ?

• G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)

Abrégé

Method for reconstruction of a three-dimensional model of an osteo-articular structure of a patient, wherein a) bi- dimensional patient-specific image data (41) of said structure is provided; (d) a preliminary solution, corresponding to a previously established solution model of the structure, is provided (42) from a base (21), said preliminary solution comprising a priori knowledge of the corresponding structure, previously established from structures of the same type, said preliminary solution comprising surface data describing the coordinates of the surface of the solution model, and bulk data describing at least one characteristic of the inside of the solution model; the preliminary solution is modified (42', 43, 44, 46, 47, 48) to be brought in concordance with said patient-specific image data.

Classes IPC  ?

• A61B 5/107 - Mesure de dimensions corporelles, p. ex. la taille du corps entier ou de parties de celui-ci
• A61B 6/02 - Agencements pour établir un diagnostic dans des plans différents successifsDiagnostic stéréoscopique utilisant des radiations

Abrégé

Method for reconstruction of a three-dimensional model of a body structure of a subject, said structure comprising a plurality of objects, wherein a database (21) of the structure is provided, the database comprising means to estimate, from a parameter of any object of the structure, another parameter for an object of the structure, a preliminary solution for a first object (L1) is modified to be brought in concordance with subject-specific data (23a, 23b) , a reconstruction of the second object (T12) is obtained based on the modified first object and on the database of structure (21) .

Classes IPC  ?

• G06T 17/10 - Description de volumes, p. ex. de cylindres, de cubes ou utilisant la GSC [géométrie solide constructive]

Abrégé

The invention relates to a drilling tool control device comprising input (2) and output (3) transmission shafts which are coupleable to the tool and to each other with the aid of coupling means used for converting the rotational movement of the input shaft (2) into the output shaft (3) translation movement directed along the longitudinal axis thereof, wherein the coupling means comprise a gear means (1) for converting the rotational movement of the input shaft (2) into the output shaft (3) combined translation movement consisting of an axially directed uniform translation component and an axially directed oscillation component.

Classes IPC  ?

• B23Q 5/32 - Avance des broches de travail
• B23B 47/02 - EntraînementsTransmissions
• B23B 47/34 - Agencements pour enlever les copeaux des trous pendant le perçageAgencements fixés à l'outil pour briser les copeaux
• B23B 45/00 - Perceuses tenues à la main ou perceuses analogues portatives, p. ex. en forme de pistoletÉquipement à cet effet