Centre national de la recherche scientifique (France)
Inventeur(s)
Himdi, Mohamed
Ben Dewan, Raimi
Castel, Xavier
Caldamone, Patrick
Levavasseur, Thierry
Gourmelen, Frédéric
Parneix, Patrick
Abrégé
Disclosed is an absorbent structure which is a honeycomb structure extending between two end faces and which includes tubular cells, each cell having walls delimiting the cell, the walls extending between the two end faces, the walls being formed from a dielectric material, at least one cell having at least one strip of electrically conductive coating arranged in at least one wall or over a surface of at least one wall, the honeycomb structure being characterized by parameters chosen so that the absorbent structure provides an attenuation of at least 10 dB for each incident wave in a frequency range having a frequency spread greater than or equal to 15 GHz.
H01Q 17/00 - Dispositifs pour absorber les ondes rayonnées par une antenne; Combinaisons de tels dispositifs avec des éléments ou systèmes d'antennes actives
2.
EVAPORATOR OF A WORKING FLUID FOR AN OTEC PLANT COMPRISING A COVER
The present invention relates to an evaporator of a working fluid for an OTEC plant, comprising an elongated evaporator body extending along a main axis, a bundle of evaporators transporting hot water, a sprinkling system arranged in an upper part of the evaporator body, a system for evacuating the fluid in gaseous state and a guide system for the fluid in gaseous state towards the evacuation system. The guide system comprises an elongated cover extending along the main axis, covering the bundle of evaporators and the sprinkling system, and two partitioning means which are arranged at each end of the evaporator body and form on each of these ends a sealed connection between the outer surface of the cover and the inner surface of the evaporator body.
F22B 27/16 - Chaudières à vapeur instantanées ou du type flash comportant des injecteurs pour asperger ou pulvériser des gouttelettes d'eau sur ou à l'intérieur des éléments échangeurs de chaleur, p.ex. à l'intérieur des tubes
F28F 9/02 - Boîtes de distribution; Plaques d'extrémité
F28F 9/00 - Carters; Boîtes de distribution; Supports auxiliaires pour les éléments; Eléments auxiliaires dans les carters
F03G 7/05 - Conversion de l'énergie thermique des océans
An ablative composite material including a matrix and a reinforcement, characterised in that: the matrix is a phenolic resin or an epoxy resin and the reinforcement is formed of short carbon fibres with a length of between 0.5 mm and 20 mm, and a diameter of between 6 μm and 20 μm.
A projectile including: a shell; a rotating shaft; and a screw which can be rotated by the rotating shaft. The screw and the shell include, respectively, a stop and a counter-stop opposite each other. The screw is capable of sliding axially between a first position, in which a non-zero clearance is provided between the stop and counter-stop, and a second position, in which the stop and counter-stop are in contact. An elastic return element reversibly deformable between a first and a second state of stress which correspond to the first and second positions of the screw, respectively, the stress of the first state being lower than the stress of the second state.
Underwater craft including means for launching an underwater vehicle using water pressure, including a vehicle-launching tube having a front part and a rear part and the rear part of which is connected to a water distribution tank itself connected to a water tube in which is positioned a piston for delivering water into the rear part of the tube in order to push and eject the vehicle, is characterized in that the piston is associated with a linear electric actuator for moving same.
A projectile launch detector, including a body, a mast and a blade rigidly connected to the mast; the mast being capable of sliding between a retracted configuration and a deployed configuration, and capable of pivoting between a first and a second angular position. The detector may further includes a first elastic return element to return the mast to the deployed configuration relative to the body; and a first associated sensor; and a second elastic return element to return the mast to the first angular position relative to the body; and a second associated sensor.
F41F 3/10 - Lanceurs de roquettes ou de torpilles pour torpilles marines lancées sous la surface de l'eau
G01P 5/04 - Mesure de la vitesse des fluides, p.ex. d'un courant atmosphérique; Mesure 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 en utilisant la déflexion par des plaques en chicane
B63G 8/32 - Disposition des installations offensives ou défensives des magasins ou de la manutention des torpilles
F42B 19/24 - Propulsion spécialement adaptée pour les torpilles par moteurs électriques
A method of estimating the movement between two images (I1, I2) comprising the steps of determining an initialization displacement vector between the two images by projecting, in the image plane of the image capture device, the displacement between the two images calculated depending on collected information defining the movement of the image capture device between the two images and depending on the value of image capture parameter(s) used, chosen from an angular opening, a zoom factor and the resolution of the images implementing, based on the initialization displacement vector, an iterative algorithm delivering a displacement vector depending on an error function to be minimized between one of the two images and the transform of the other image by the displacement vector.
The recovery device comprises a floating cradle configured to receive and support the vehicle, the cradle having an entrance for the vehicle situated at a rear end of the cradle and delimited between two lateral portions, the cradle being configured or capable of being configured with a rear lateral extension extending toward the rear from one of the two lateral portions, the other lateral portion having no rear lateral extension.
wherein the looping stage is configured to operate automatically in at least one of two modes, insulating or resistive, respectively associated with the monitoring of the insulation or the monitoring of the continuity.
G01R 31/12 - Test de la rigidité diélectrique ou de la tension disruptive
G01R 31/50 - Test d’appareils, de lignes, de câbles ou de composants électriques pour y déceler la présence de courts-circuits, de continuité, de fuites de courant ou de connexions incorrectes de lignes
G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre
Disclosed is a mast intended to equip a marine or submarine vessel. The mast includes a metal structure extending along an axis and a fairing arranged externally to the structure in a direction normal to the axis. The fairing is removably assembled to the structure.
This method includes emitting, by an emitter at an emitting depth, moved along an axis, at least one incident sound wave at an emitting frequency, receiving a first sound wave reflected by a first reflective object at a first depth and a second sound wave reflected by a second reflective object at a second depth, greater than the first depth, providing a first velocity at the first depth, and determining a second velocity of the sound waves at the second depth, from the frequencies of the first and second reflected sound waves, the emitting frequency and the first velocity.
G01S 15/60 - Systèmes de détermination de la trajectoire ou de la vitesse; Systèmes de détermination du sens d'un mouvement dans lesquels l'émetteur et le récepteur sont montés sur l'objet mobile, p.ex. pour déterminer la vitesse par rapport au sol, l'angle de dérive, le trajet au sol
Disclosed is a hull device designed to be reversibly attached to an outer surface of a ferromagnetic structure of a marine or submarine system or vessel. The device includes at least one attachment surface suitable for attaching the device to the structure, and a plurality of permanent magnets arranged in the vicinity of the attachment surface in order to attach the device to the structure.
The invention relates to a reflectometry system for detecting faults on a hardened multipoint connector of an electrical network, of the type that comprises a measuring probe, characterized in that it comprises an interfacing and impedance matching part that is electrically suitable for mounting on the connector to be tested and comprises a body provided with at least one element in the form of a collector ring for the contact masses of the connector and a measuring opening for the probe of the reflectometry system.
G01R 31/11 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux en utilisant des méthodes de réflexion d'impulsion
G01R 31/50 - Test d’appareils, de lignes, de câbles ou de composants électriques pour y déceler la présence de courts-circuits, de continuité, de fuites de courant ou de connexions incorrectes de lignes
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
G01R 31/28 - Test de circuits électroniques, p.ex. à l'aide d'un traceur de signaux
16.
Naval platform provided with a zone for the deck landing/take-off of at least one aircraft and dolly-type means for handling said aircraft
Disclosed is a naval platform equipped with a deck-landing/takeoff zone for at least one aircraft and dolly-type mechanism for handling the aircraft to move it over the deck-landing/takeoff zone. The dolly-type mechanism includes a vacuum disc for immobilizing the dolly and thereby securing the aircraft in position on the deck-landing/takeoff zone, the operation of which is triggered by an analyzer of the behavior of the platform in order to avoid any risk of uncontrolled movement of the aircraft.
Disclosed is a weapon tube and particularly a torpedo tube structure including a system for holding the weapon in a storage position in the tube, including a clamping mechanism which is connected to the structure and can be moved by an actuator between a closed position for locking an interface part of the weapon in order to lock the weapon in position in the structure and an open position for releasing the interface part and therefore the weapon, the structure includes an elastic unit for soliciting the clamping mechanism in the closed position.
F41F 3/052 - Moyens pour fixer la fusée dans l'appareil de lancement
F41F 3/08 - Lanceurs de roquettes ou de torpilles pour torpilles marines
F16B 2/10 - Brides ou colliers, c. à d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif externes c. à d. agissant par contraction utilisant des mâchoires sur pivot
18.
Naval platform provided with a deck landing/take-off zone and means for handling an aircraft
A naval platform has a zone for the deck landing/take-off of an aircraft and an aircraft handler, to move the aircraft over the deck landing/take-off zone. The aircraft handler includes a body in the form of a bar for gripping and securing the main landing gear of the aircraft, provided with an anchoring hook mounted to slide in at least one rail, guiding the the aircraft on the deck landing/take-off zone. The hook is retractable, allowing the release of the body in the form of a gripping and securing bar from the rail, the body gripping the landing gear of the aircraft. The movement of the aircraft brings the body into position on the rail, and the hook into a position in which it faces the rail, and the hook back into an anchoring position in the rail in order to secure the aircraft.
A weapon launching tube structure, and in particular a torpedo launching tube structure, includes a tube inside which weapon guiding slides are mounted at regular intervals around the weapon. The slides are made from a single slide blank obtained by an extrusion process.
Disclosed is an ordnance-launching tube, including a rear door and an expulsion circuit between a source of pressurized fluid and the tube, and provided with a unit for closing this circuit having an actuator that can be maneuvered by an operator in order to permit the expulsion, the actuator being associated with a detector for the presence of the rear door in the tube-closing position and with a lock for this rear door in the tube-closing position, which can be actuated via a bolt that the operator can move between a first position preventing expulsion and a second position permitting expulsion when the door is in the closing position and locked. The bolt includes an abutment movable between a position blocking the actuator in position to prevent expulsion, and a position releasing the actuator so that they may be actuated by the operator, and thus permit expulsion.
Disclosed is a method and a device for improving the safety of a maritime platform, installed at sea or navigating at sea, including an observation of sea waves striking the maritime platform, an operation of the maritime platform being controlled via a control system. The method and device are suitable for: —acquiring elevation values of the surface of the sea at a plurality of points, making it possible to characterize at least one group of sea waves, a sea wave being likened to a wave defined by a period and an amplitude, —calculating at least one characteristic quantity of each group of waves, —comparing the calculated characteristic quantity to a hazard threshold, —if the comparison indicates the hazard threshold is crossed, raising an alert intended for the control system.
G08B 21/10 - Alarmes pour assurer la sécurité des personnes réagissant aux événements désastreux, p.ex. les tornades ou les tremblements de terre
G08B 25/00 - Systèmes d'alarme dans lesquels l'emplacement du lieu où existe la condition déclenchant l'alarme est signalé à une station centrale, p.ex. systèmes télégraphiques d'incendie ou de police
B63J 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
22.
Submarine provided with rows of power storage means
H01R 11/01 - CONNEXIONS CONDUCTRICES DE L'ÉLECTRICITÉ; ASSOCIATION STRUCTURELLE DE PLUSIEURS ÉLÉMENTS DE CONNEXION ÉLECTRIQUE ISOLÉS LES UNS DES AUTRES; DISPOSITIFS DE COUPLAGE; COLLECTEURS DE COURANT Éléments de connexion individuels assurant plusieurs emplacements de connexion espacés pour des organes conducteurs qui sont ou qui peuvent être interconnectés de cette façon, p.ex. pièces d'extrémité pour fils ou câbles supportées par le fil ou par caractérisés par la forme ou par la disposition de l'interconnexion entre leurs emplacements de connexion
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
B60L 11/18 - utilisant de l'énergie fournie par des piles primaires, des piles secondaires ou des piles à combustibles
H01M 2/20 - Connexions conductrices du courant pour les éléments
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p.ex. le niveau ou la densité de l'électrolyte
H01M 2/10 - Montures; Dispositifs de suspension; Amortisseurs; Dispositifs de manutention ou de transport; Supports
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
B60L 50/64 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries - Détails de construction des batteries spécialement adaptées aux véhicules électriques
23.
System and method for detecting venting of a sealed storage cell
In a system and method for detecting venting of a sealed storage cell, the sealed storage cell comprises a container with a sealing cap adapted to be detached from the container and move in the presence of gas overpressure inside the container to allow venting of the storage cell. The detection system comprises a printed circuit board with a central portion designed to be situated opposite the sealing cap, a peripheral portion surrounding the central portion and connected to the central portion by a hinge adapted to flex during movement of the sealing cap, and at least one frangible portion adapted to break upon movement of the sealing cap. An electrical printed track connects the peripheral portion to the central portion through the hinge and frangible portion(s), and is designed to be broken upon breaking of the frangible portion(s) following movement of the sealing cap.
H01M 2/12 - Events ou autres aménagements mécaniques pour faciliter l'échappement des gaz
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p.ex. le niveau ou la densité de l'électrolyte
H01M 2/34 - Connexions conductrices du courant pour les éléments avec des moyens pour empêcher un usage ou une décharge indésirables
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
H01M 2/10 - Montures; Dispositifs de suspension; Amortisseurs; Dispositifs de manutention ou de transport; Supports
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p.ex. batteries à insertion ou intercalation de lithium dans les deux électrodes; Batteries à l'ion lithium
brevets
