baber/WOPTO huggingface dataset:
Patent FR-2580112-A1 (FR)
Title: Flat cable
IPC: H01B7/08
Filed: 1985-04-09
Abstract: Cable composed of a plurality of conductors, each of the said conductors 12 comprising an electrically conducting core 18 and an insulating sheath 20 surrounding the core, the said sheaths of the said conductors being joined together side by side in the same plane in the region of a plurality of short linking zones 22, 24, 26 distributed along the cable, and the said sheaths being separated and not joined to each other in the region of free zones 28, 30, 32 placed between the pairs of the said linking zones, the whole unit forming a pattern 34 repeating itself along the length of the cable, the length of the free zone being greater than the length of the linking zone in each pattern.
Patent FR-2586871-A1 (FR)
Title: Device for improving the signal/noise ratio in a frequency demodulator
Inventor: MEULEMAN FRANK
IPC: H03G5/24
Filed: 1985-09-03
Abstract: In a frequency demodulator, device for improving the signal/noise ratio comprising a passive bandpass filter composed of a fixed filter and of a filter which can be adjusted through a control circuit, the said device being such that the adjustable filter is symmetric and comprises two coupled resonators 30 to 34 and 50 and 54 with adjustable resonant frequency and such that the control circuit comprises means of continuous adjustment of the said resonant frequencies. Preferably, each adjustable resonator comprises at least one inductor and one or more capacitors associated with a varactor diode, these diodes being mounted head-to-tail with one another and the control circuit is connected to each adjustable resonator in such a way that the variation in electrical magnitude thus controlled increases the capacitance of one of the adjustable resonators and reduces that of the other symmetrically. Application: receivers of television programmes broadcast by satellite.
Patent FR-2587201-A1 (FR)
Title: Chair seat, in particular for invalid wheelchair
Inventor: LAMBERT JEAN-PIERRE
IPC: A61G5/10
Filed: 1985-09-13
Abstract: The chair seat according to the invention comprises a canvas (cloth) 1 supported by two lateral rods 2 whose ends are respectively turned forwards and backwards with respect to the seat. Means 3 are provided for adjusting the tension of the canvas (cloth), these means being situated at the front and/or rear ends of the rods 2. In order to adjust the tension of the canvas (cloth) 1 and to allow the user to sit in the position which is most comfortable for him.
Patent FR-2588169-A1 (FR)
Title: Dental-care kit intended for introducing children to dental hygiene
IPC: A47K1/09
Filed: 1985-10-04
Abstract: A dental-care kit composed of three elements (a toothbrush, a tumbler and the support for the toothbrush and the tumbler) makes it possible, by virtue of a duration reference scale on the brush and a combined reference scale on the tumbler and the support, to ensure, firstly, the quality of the toothbrush and, secondly, to monitor the regularity of brushing. The duration reference scale on the toothbrush consists of a scale of 12 holes, one of which can be closed off by means of a small press-stud in order to memorize the purchase date and the date when it will be necessary to change the toothbrush, each of the holes corresponding to a month of the year. The combined reference scale on the tumbler and on the support consists of a reference scale on the tumbler which can be positioned in 14 different ways when the tumbler is placed on the support. By virtue of the reference scale on the tumbler, the support then indicates on which day of the week, morning or evening, the dental-care kit was used most recently.
Patent FR-2590942-A1 (FR)
Title: Device for assembling and packing cylindrical bodies
Inventor: FALQUET PATRICK
IPC: B65D71/50
Filed: 1985-12-03
Abstract: Device for assembling and packing cylindrical bodies into a single stabilised unit. The invention relates to a device making it possible to assemble, pack, transport and display cylindrical bodies or flasks using a single fixture. The device according to the invention consists of a fixture 1 made from a semi-rigid synthetic material comprising peripheral semicircular openings 2, 3, 4 for the introduction of the cylindrical bodies, arms 7, 8, 9, 10 comprising tabs 13, 14, 15 with decreasing thickness, acting as clips around the necks of the cylindrical bodies and two circular perforations 5, 6 for passing the fingers through to lift the unit.
Patent FR-2591904-A1 (FR)
Title: Removable and adjustable device for training different categories of rugby player
IPC: A63B63/00
Filed: 1985-12-23
Abstract: Set of removable goals for rugby training. The invention relates to training for the game of rugby. The device which is the subject of the patent makes it possible to train all categories of player by virtue of the possibilities for adjusting the height and the orientation of the crossbar 17. It is removable and may be placed on parts of stadia not in use and playing fields. It is made up of a movable and vertical central upright 6 which is positioned by fitting into concrete bases 1 at sites, in the stadium, which are chosen in advance. In this upright, a vertical cylindrical slide 11 rises or descends according to the indexing of a pin 14 which traverses it perpendicularly and which bears on the upper face of the central upright. The variable height crossbar 17 is fastened onto the upper part of the slide 11, the two ends of which crossbar each support a vertical post 28. Immobilisation in terms of orientation of the goal front is independent of the adjustment in terms of height.
Patent FR-2592719-A1 (FR)
Title: Method of calibrating a radio frequency apparatus and installation implementing this method
Inventor: CHRISTOPHE FLORENT
IPC: G01R35/00
Filed: 1986-01-03
Abstract: The method consists in transmitting, from an auxiliary transmission antenna 12-4, a radio frequency signal to the receiving antenna 1-4 of the apparatus to be tested. This signal is picked up by a bandpass filter 2-4, then by an amplifier with gain G 3-4, then by a variable-transmittance element 14-4, remotely controlled by a means 15-4. The signal is received back at the auxiliary receiving antenna 11-4, then compared by virtue of comparison means 9-4 to the transmission signal. This relationship is linked to the coupling factor of the apparatus to be tested, and the box 13-4 calculates the coupling factor, at the same time as it delivers the necessary control signals to the variable element 14-4, possibly to the neutrodyne circuit, and to the transmitter 8-4.
Patent FR-2592588-A1 (FR)
Title: Artificial climbing wall and method for producing this wall
IPC: A63B69/00
Filed: 1986-01-06
Abstract: The artificial climbing wall according to the invention comprises a series of panels 1 mounted on a chassis 2 and equipped with hold members projecting relative to the panels, and it is characterised in that the panels are coated in a layer of resin in which grains of sand are embedded. Moreover, the hold members may have various shapes, such as pieces of rock fixed on the panels by the resin serving for the coating or removable hold members 8.
Patent FR-2579002-A1 (FR)
Title: Device for insertion and automatic ejection of discs
Inventor: ARC STEPHANE MARIE ANDRE D ALA
IPC: G11B17/051
Filed: 1986-03-12
Abstract: The device includes a motorised, mobile roller 32 cooperating with the periphery of the disc 10 so as to ensure, depending on its direction of rotation, an additional displacement of the said support towards or away from its position of ejection. A flat surface 40, 41 is associated with the motorised roller 32, and cooperates with the periphery of the disc so as to guide the displacement thereof, or at least one other roller which is symmetric with the latter with respect to the direction of insertion.
Patent FR-2598477-A1 (FR)
Title: Poulie de variateur de vitesse et variateur de vitesse incorporant une telle poulie.
Inventor: BRIEL JACQUES THIRION DE
IPC: F16H63/06
Filed: 1986-05-07
Abstract: VARIATEUR DE VITESSE A DEUX POULIES COMPORTANT CHACUNE UN FLASQUE FIXE ET UN FLASQUE MOBILE ET UNE COURROIE MONTEE ENTRE LES DEUX PAIRES DE FLASQUES. SELON L'INVENTION, LE SERRAGE LATERAL DE LA COURROIE11 EST MODERE PAR LE FAIT QUE LA CARACTERISTIQUE FORCECOURSE AXIALE DU DIAPHRAGME27B SOLLICITANT LE FLASQUE MOBILE22B EN DIRECTION DU FLASQUE FIXE23B, COMPORTE UN POINT NEUTRE OU LA FORCE CHANGE DE SENS POUR S'OPPOSER A L'ACTION CENTRIFUGE DES MASSELOTTES35B FIXEES AUDIT DIAPHRAGME, A PARTIR D'UN CERTAIN RAPPROCHEMENT DES FLASQUES PRECITES. APPLICATION A L'INDUSTRIE AUTOMOBILE.
Patent FR-2583732-A1 (FR)
Title: Unite d'entrainement lineaire utilisee sur le chariot d'un appareil de levage.
Inventor: GUTEKUNST STANLEY K
IPC: B66C9/14
Filed: 1986-06-19
Abstract: L'INVENTION EST RELATIVE A UNE UNITE D'ENTRAINEMENT LINEAIRE. CELLE-CI COMPREND UN ELEMENT D'ENTRAINEMENT ROTATIF ALLONGE12, UN CHARIOT10 DEPLACABLE LE LONG DE CELUI-CI, UNE ROUE MOTRICE30-33 PREVUE SUR LE CHARIOT10 ET CAPABLE DE COOPERER AVEC L'ELEMENT D'ENTRAINEMENT DE FACON QUE LORSQU'UNE ROTATION EST CONFEREE PAR L'ELEMENT D'ENTRAINEMENT12 A LA ROUE MOTRICE30-33, CELLE-CI PUISSE FOURNIR UN MOUVEMENT LINEAIRE AU CHARIOT10, DES MOYENS30A-33A DE MONTAGE DE LADITE ROUE MOTRICE30-33 POUR LA DEPLACER DANS DES POSITIONS DE PART ET D'AUTRE D'UNE POSITION NEUTRE SITUEE DANS UN PLAN NORMAL A LA LONGUEUR DE L'ELEMENT D'ENTRAINEMENT 12 ET UN MOTEUR ACTIONNABLE A DISTANCE62 PREVU SUR LE CHARIOT10 POUR DEPLACER LA ROUE MOTRICE30-33 DANS UNE DESDITES POSITIONS.
Patent FR-2601015-A1 (FR)
Inventor: FABRE JEAN-LOUIS
IPC: C07D513/04
Filed: 1986-07-04
Abstract: A compound of the general formula I; (I) in which R is hydrogen or a halogen or an alkyl, alkyloxy, alkylthio, trifluoromethyl, amino, alkylamino, dialkylamino, hydroxy, cyano, carboxy, alkylsulphinyl, alkylsulphonyl, sulphamido, alkylsulphamido, dialkylsulphamido, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, phenylcarbamoyl, diphenylcarbamoyl, pyridylcarbamoyl, dipyridylcarbamoyl, benzyl, alkylcarbonyl, benzoyl, alkyloxycarbonyl, phenoxycarbonyl, alkylcarbonyloxy, benzoyloxy, alkylcarbonylamino, benzamido, phenyl, phenoxy or phenylthio group, X is oxygen or sulphur or an imino, alkylimino, phenylimino, benzylimino, sulphinyl, sulphonyl, carbonyl, carbonylmethylene, methylenecarbonyl, carbonylvinylene or vinylenecarbonyl group, or X represents a valency bond or a straight-chain alkylene group containing 1 to 4 carbon atoms and Ar is a phenyl, naphthyl, pyridyl, quinolinyl, isoquinolinyl, thienyl, benzothienyl, thieno[3,2-b]thien-2-yl or thieno[2,3-b]thien-2-yl group, it being possible for the group Ar to be unsubstituted or substituted with one or more halogen or alkyl, alkyloxy, alkylthio, trifluoromethyl, amino, alkylamino, dialkylamino, hydroxy, cyano, carboxy, alkylsulphinyl, alkylsulphonyl, sulphamido, alkylsulphamido, dialkylsulphamido, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, phenylcarbamoyl, diphenylcarbamoyl, pyridylcarbamoyl, dipyridylcarbamoyl, benzyl, alkylcarbonyl, benzoyl, alkyloxycarbonyl, phenoxycarbonyl, alkylcarbonyloxy, benzoyloxy, alkylcarbonylamino or benzamido group; each alkyl moiety containing 1 to 4 straight- or branched-chain carbon atoms; the compound being in separate enantiomeric form or mixtures thereof or a pharmaceutically acceptable salt thereof is useful in the treatment of all the pathological conditions in which PAF-acether may be directly or indirectly implicated.
Patent FR-2604061-A1 (FR)
Title: Sweet product with flavour reserve
IPC: A23G3/00
Filed: 1986-09-18
Abstract: The invention relates to a sweet product in the form of a chewing gum combined with a small stick for gripping, which also serves as a flavour reserve. The small stick 8 includes a housing containing taste elements 13 and a movable piston 9 which is extended outside the short stick by a rod 10. When this rod is pushed in the direction of the arrow 12, the piston 9 acts on the taste elements 13 and forces them towards the free end 6 of the short stick for diffusion into the chewing gum 7.
Patent FR-2608084-A1 (FR)
Title: Self-guided movable unit, and cleaning appliance such as a vacuum cleaner including such a unit
IPC: A47L9/26
Filed: 1986-12-11
Abstract: The invention relates to a movable unit, such as a cleaning appliance body, intended to move along guides such as walls or obstacles. It comprises, in combination: a chassis 1, means 2 for supporting the said chassis on the ground, at least one advancement and steering member 3, drive means 10 for driving the advancement and steering member in a predetermined direction so as to bring about the advancement of the movable unit, orientation means 11 for making the advancement and steering unit pivot in one direction or the other about a substantially vertical axis 5, detection means 69 mounted to move translationally in a substantially horizontal plane with respect to the said chassis and intended to come to bear on the said guides, and control means 58, 63 for the said orientation means, arranged to make the advancement and steering member pivot in a first direction when confronted with a reaction, which is lower than a first predetermined threshold, exerted on the detection means from the front of the movable unit with respect to its general direction F1, and in a second direction when confronted with such a reaction which is greater than the said first threshold.
Patent FR-2609104-A1 (FR)
Title: Method for selectively treating an underground formation, by means of a reeled casing, without affecting, or being affected by, the two adjacent zones
Inventor: VERCAEMER CLAUDE
IPC: E21B43/25
Filed: 1986-12-31
Abstract: The invention relates to a novel method for selectively treating an underground formation without affecting or being affected by the two upper and lower adjacent zones. According to the method of the invention, the treatment fluid is injected into the formation to be treated F and, at the same time, two protective fluids, which may be identical or different, are injected into the upper ZS and lower ZI adjacent zones.
Patent FR-2611205-A1 (FR)
Title: Dipeptides, procede de preparation et utilisation dans le dosage de proteases
Inventor: QUENTIN GERARD
IPC: C07K5/062
Filed: 1987-02-20
Abstract: LA PRESENTE INVENTION VISE EN TANT QUE PRODUITS INDUSTRIELS NOUVEAUX LES DIPEPTIDES DE FORMULE : Q-A-A-R OU Q EST UN RESTE RO-CO-(CRR)N -CO (OU R EST H, ALKYLE EN C1-C4, PHENYLE EVENTUELLEMENT SUBSTITUE, BENZYLE EVENTUELLEMENT SUBSTITUE OU P-CHCHSOCH, R ET R IDENTIQUES OU DIFFERENTS REPRESENTENT CHACUN H OU ALKYLE EN C-C, ET N EST UN NOMBRE ENTIER VALANT 1 A 5), A EST UN RESTE D'AMINOACIDE NON BASIQUE, A EST UN RESTE D'A-AMINOACIDE BASIQUE, ET R EST UN RESTE AMINO NHR CONSTITUANT UN MARQUEUR CLIVABLE DE A PAR HYDROLYSE ENZYMATIQUE (OU R EST UN SUPPORT DU MOYEN DE MARQUAGE); ET LEURS SELS D'ADDITION. CES NOUVEAUX PRODUITS SONT UTILES COMME SUBSTRATS ENZYMATIQUES NOTAMMENT DANS LE DOMAINE DES DOSAGES BIOLOGIQUES.
Patent FR-2611759-A1 (FR)
Inventor: HOOGHE MARTIAL D
IPC: D06F39/02
Filed: 1987-03-04
Abstract: A device for dosing and dispensing a fluid product to be deposited freely in the mobile enclosure of a machine, the device comprising a hollow recipient adapted to contain a dose of product and being integral with a plunger tube provided for both filling and dispensing the dose, wherein the device is provided with a coupling for mounting the plunger tube on a container such as a bottle, can or the like, the plunger tube presenting at least one opening for filling and dispensing, the edge of the opening being positioned to determine the dose stored in the recipient to be dispensed when the recipient is placed in a washing machine or the like.
Patent FR-2596108-A1 (FR)
Title: Pales pour helice de ventilateur
Inventor: TAKIGAWA KAZUNORI
IPC: F04D29/38
Filed: 1987-03-23
Abstract: L'INVENTION EST RELATIVE A DES PALES POUR HELICE DE VENTILATEUR, PAR EXEMPLE POUR LE REFROIDISSEMENT D'UN MOTEUR D'AUTOMOBILE. LA SURFACE DES PALES 2, DU COTE ASPIRATION, EST RUGUEUSE SUR AU MOINS UNE PARTIE 4 DE SON ETENDUE. LA RUGOSITE, COMPRISE DE PREFERENCE ENTRE 5 ET 300 MICROMETRES, PEUT ETRE OBTENUE AU JET DE SABLE, OU, AUSSI ETRE CONSTITUEE DE FINES RAYURES. DE PREFERENCE, LA RUGOSITE DECROIT EN S'ECARTANT DU CENTRE DE L'HELICE. LA RUGOSITE SERT A DIVISER LA COUCHE LIMITE EN AUGMENTANT SON ENERGIE CINETIQUE ET A EMPECHER OU RETARDER, PAR CONSEQUENT, SON DECOLLEMENT. IL EN RESULTE UNE DIMINUTION DU BRUIT.
Patent FR-2620161-A1 (FR)
Title: Adjustable door hinge with socket and sealing
IPC: E05D7/04
Filed: 1987-03-31
Abstract: The invention relates to a door hinge with socket and sealing. According to the invention the hinge, which is made up of a pin 10 whose base 12 is carried by a sealing device perpendicular to the said pin is noteworthy in that the base 12 is integral with a threaded rod 14 and can be continuously adjusted, in the longitudinal position, in a tube guide 13 of polygonal cross-section constituting the sealing 11 under the action of an adjusting means whose command 16 is located between the said base 12 and the neighbouring end of the tube guide 13.
Patent FR-2596753-A1 (FR)
Title: Verre mate, procede de fabrication de verre mate, cellule photovoltaique comprenant un tel verre et procede de fabrication d'une telle cellule
Inventor: HECQ ANDRE
IPC: H01L31/056
Filed: 1987-04-02
Abstract: L'INVENTION CONCERNE UN VERRE MATE DONT LA TRANSMISSION LUMINEUSE DIFFERE TRES PEU DE CELLE DU MEME VERRE NON MATE ET AU-TRAVERS DUQUEL UNE LARGE PARTIE DE LA LUMIERE TRANSMISE L'EST SOUS FORME DIFFUSE. UN TEL VERRE S'OBTIENT PAR ATTAQUE CORROSIVE DE SA SURFACE. LE VERRE 1 SELON L'INVENTION EST PARTICULIEREMENT BIEN ADAPTE POUR ENTRER DANS LA FORMATION DE CELLULES PHOTOVOLTAIQUES TELLES QUE LES CELLULES COMPRENANT UNE COUCHE DE SILICIUM AMORPHE 3 ENTRE 2 COUCHES CONDUCTRICES 2, 3 DONT IL AMELIORE LE RENDEMENT.
Patent FR-2615608-A1 (FR)
Title: Echangeur de chaleur perfectionne, convenant particulierement aux chaudieres a gaz a usage domestique
Inventor: PRELOVSEK VITTORIO
IPC: F28D7/02
Filed: 1987-05-22
Abstract: CET ECHANGEUR DE CHALEUR EST FORME D'UN TUBE TORSADE 1 PRESENTANT UN RENFLEMENT EN HELICE, INTERCALE ENTRE UN TUBE EXTERIEUR 3 ET UN TUBE INTERIEUR 2. DES JOINTS TORIQUES 5, 6 ET 10, 11 ISOLENT HERMETIQUEMENT LE TUBE TORSADE ET EMPECHENT TOUT MELANGE DES FLUIDES. DE FORME COMPACTE ET FACILEMENT DEMONTABLE, L'ECHANGEUR PEUT ETRE DEBARRASSE COMPLETEMENT ET AISEMENT DE TOUS LES DEPOTS CALCAIRES FORMES SUR LA SURFACE D'ECHANGE DE CHALEUR. APPLICATIONS : NOTAMMENT AUX CHAUDIERES A GAZ A USAGE DOMESTIQUE.
Patent FR-2619586-A1 (FR)
Title: Procede de captage a partir d'un trou de forage d'une eau minerale chargee en acide carbonique
Inventor: SADIKOV YAKOV SAMOILOVICH
IPC: E21B43/12
Filed: 1987-08-21
Abstract: Le procédé de captage d'une eau minérale riche en acide carbonique consiste à effectuer un mélange de cette eau avec un gaz naturel contenant du dioxyde de carbone. Au cours de l'extraction de l'eau, on la mélange à du gaz naturel, en dissolvant dans cette eau du dioxyde de carbone jusqu'à saturation par le dioxyde de carbone à des concentrations de 2,2 à 5,0 kg/m**3, en opérant dans des conditions d'étanchéité qui assurent que la teneur en oxygène de l'air de l'eau minérale n'est pas supérieure à 0,0005 kg/m**3. L'eau minérale riche en acide carbonique, extraite par le procédé selon l'invention est utilisée dans l'industrie alimentaire et dans des applications médicales.
Patent FR-2621685-A1 (FR)
Title: Autonomous refrigerated containers for transporting blood, serum, etc.
IPC: F25B21/02
Filed: 1987-10-07
Abstract: The invention relates to a device making it possible to transport, autonomously and at a regulated temperature, tubes for specimens or medicaments already cooled to 4 DEG C, maintained electrically by the Peltier effect. It consists of a case 1 made in two parts, hinged together, and of a face forming a cover 2 enclosing an isothermal bell made in two parts 7 and 8. Sealing is performed by a diaphragm 10 defining cavities 9 for receiving the products to be transported. Refrigeration is obtained by a Peltier-effect module 5, the cold inner face of which is in contact with a heat exchanger 6. The hot face is in contact with a static radiator 4. The said module is supplied by batteries 12 regulated by a thermostat with probe 11. The device according to the invention is particularly intended for transporting medical products.
Patent FR-2620527-A1 (FR)
Inventor: BAUD JEAN-JACQUES
IPC: F42B5/313
Filed: 1987-09-11
Abstract: This case is of the type composed of three elements made of mouldable or injectable plastic, namely a tubular body (2), a base (3) and a bottom piece (4). The tubular body (2) has a frustoconically narrowed assembly end (2a), the base (3) has a frustoconical bore (3b) of the same apex angle (A) as the narrowed end (2a) of the tubular body (2) for which it is intended to serve as a receptacle, and the bottom piece (4) has a frustoconical outer profile of the same apex angle (A) as the narrowed end (2a) of the tubular body (2) and as the bore (3b) of the base (3), the respective dimensions of the bore (3b) of the base (3) and of the bottom piece (4) being such that, after assembly, the annular gap separating them is of a width slightly smaller than the thickness of the narrowed end (2a) of the tubular body (2), means being provided to make it possible to assemble the base (3) and the bottom piece (4) by snapping.
Patent FR-2620607-A1 (FR)
Inventor: HEIDMANN CHARLES
IPC: A47C3/026
Filed: 1987-09-22
Abstract: Ergonomic chair comprising, mounted on a fixed base (10), optionally adjustable in terms of height, a seat/back assembly in a single piece (11), whose flexibility relative to the fixed base results from the combination of the mechanical means (12) and the properties of the material (13) used for its construction.
Patent FR-2608936-A1 (FR)
Title: Dispositif de commande de direction pour jouet mobile
Inventor: SUTO SHOHEI
IPC: A63H17/36
Filed: 1987-11-26
Abstract: LE DISPOSITIF DE COMMANDE DE DIRECTION POUR JOUET MOBILE, TEL QU'UNE VOITURE RADIO-COMMANDEE, COMPORTE UN AIMANT CYLINDRIQUE, UNE CULASSE MAGNETIQUE 9 DISPOSEE DE MANIERE PIVOTANT A L'INTERIEUR DE L'AIMANT ET POSSEDANT UN ENROULEMENT ELECTROMAGNETIQUE 3, ET DES BRAS DE DIRECTION 13A, 13B FIXES SUR LES ROUES MOTRICES 14A, 14B, DU JOUET. LA DIRECTION DU JOUET MOBILE EN MOUVEMENT PEUT AISEMENT ETRE CHANGEE SELECTIVEMENT EN APPLIQUANT UN COURANT CONTINU D'UNE POLARITE A L'ENROULEMENT DE FACON A FAIRE PIVOTER LA CULASSE DE MANIERE ELECTROMAGNETIQUE, EN FAISANT TOURNER DE CE FAIT LES BRAS DE DIRECTION CONCURREMMENT AVEC LA CULASSE PIVOTANTE.
Patent FR-2628446-A1 (FR)
Title: Procede d'obtention d'un materiau organique polycristallin ayant notamment des proprietes electrooptiques, materiau obtenu et modulateur electrooptique comportant ce materiau
IPC: C30B23/00
Filed: 1988-03-14
Abstract: Le procédé d'obtention comprend une étape de préparation 1 d'une poudre, ayant une granulométrie de 500 à 800 nm, d'un composé organique ayant un système d'électrons pi délocalisé et présentant une structure cristalline non centro-symétrique ainsi que des groupements à transfert de charge intramoléculaire, une étape de séchage sous vide de la poudre 2, une étape de pré-pressage 3 de la poudre sous vide, et une étape de compression 5 uniaxiale, à chaud et sous vide de la poudre séchée. Ce procédé permet d'obtenir des matériaux polycristallins comportant des grains monocristallins allongés orientés selon une même direction.