baber/WOPTO huggingface dataset:
Patent FR-2645392-A1 (FR)
Title: Circuit for powering an arc lamp, especially for a motor vehicle headlight
Inventor: ALBOU PIERRE
IPC: H05B41/288
Filed: 1989-03-31
Abstract: The invention relates to a circuit for powering an arc lamp comprising: - means L1, C1, T1, C2, T2 for generating an AC voltage of variable amplitude depending on the state of the lamp, and - a voltage step-up transformer T, the said variable voltage being applied to the primary winding of the transformer and the lamp L being connected up to the terminals of the secondary winding of the transformer directly or by way of non-inductive elements. Optionally, the circuit comprises means for generating at the terminals of at least one capacitor C1, C2 and for applying to the lamp L first voltage pulses intended for striking the lamp and second voltage pulses intended for maintaining the arc in the struck lamp, from a current passing through at least one inductance L1, PT, under the control of switch means T1, T2 controlled as a function of the value of the current flowing in the lamp. Application to the powering of motor vehicle headlight lamps.
Patent FR-2630740-A1 (FR)
Title: Composes derives de vitamine d3, procede pour les preparer et leur utilisation
Inventor: DELUCA HECTOR F
IPC: C07F7/18
Filed: 1989-04-28
Abstract: L'invention fournit de nouveaux homologues de chaîne latérale de la 1alpha,25-dihydroxyvitamine D3 , qui présentent une activité augmentée et hautement sélective pour provoquer la différentiation de cellules malignes. L'invention fournit également un procédé général de synthèse applicable à la préparation de divers homologues de chaîne latérale de vitamine D, et un procédé de traitement de maladies néoplasiques qui tire avantage de l'activité sélective de différentiation des nouveaux homologues de vitamine D.
Patent FR-2635877-A1 (FR)
Title: Combinaison guide d'ondes/detecteur
Inventor: DEIMEL PETER
IPC: G02B6/42
Filed: 1989-06-13
Abstract: Le détecteur 6 pour un rayonnement optique orienté par un guide d'ondes sur la surface photosensible du détecteur, est disposé parallèlement au guide d'ondes 2 de telle manière que la part évanescente 8 du rayonnement guidé dans le guide d'ondes 2 soit couplée dans le détecteur 6.
Patent FR-2650087-A1 (FR)
Title: Device for reducing and/or enlarging (magnifying) optical images
Inventor: ARBORE NORBERT
IPC: G03B27/34
Filed: 1989-07-18
Abstract: The device for reducing and/or enlarging (magnifying) optical images according to the invention comprises a fixed support 1 for the object 2 to be reproduced as an image, defining a fixed object plane P, a fixed support 4 for a sheet material 3 receiving the image of the object and defining a fixed image plane P', as well as an objective lens 8 and a mirror 6, which are placed on the optical path 10 between the object P and image P' planes. This device is characterised in that the objective lens 8 and the mirror 6 are held fixed by one and the same moving frame 13 and in that guide means 14-18, 20, 21 are provided for moving the frame 13 in translation along a predetermined curve C. This curve C is of hyperbolic shape and it is formed either by an ideal equilateral (rectangular) hyperbole or by a circle which approximates this. The invention is applicable, in particular, to apparatuses for reproducing documents by photography, and more particularly to apparatuses of the type which are of small size and which are intended for the general public.
Patent FR-2638898-A1 (FR)
Title: Dispositif a semiconducteurs a structure empilee et procede de fabrication
Inventor: SUGAHARA KAZUYUKI
IPC: H01L21/822
Filed: 1989-11-03
Abstract: Un dispositif à semiconducteurs comprend un premier élément à semiconducteurs 3, 4, 5, 6 formé sur une surface principale d'une première couche de semiconducteur 1. Une pellicule d'isolation inter-couches 10 est formée sur le premier élément à semiconducteur et comprend une première couche d'isolation 101 consistant en une pellicule BPSG ayant un point de transition vitreuse inférieur ou égal à 750 degre(s)C, et une seconde couche d'isolation 102, consistant en une pellicule d'oxyde de silicium ayant un point de transition vitreuse supérieur à 750 degre(s)C et une épaisseur comprise entre 0,2 et 1 mum. Une seconde couche de semiconducteur 11 contenant un second élément à semiconducteurs, est formée sur la seconde couche d'isolation 102.
Patent FR-2655157-A1 (FR)
Title: Method for improving the Q factor of antennas, and more particularly of the surface coils used in medical applications of nuclear magnetic resonance, and a device for its implementation
Inventor: HENRI MEHIER
IPC: G01R33/36
Filed: 1989-11-24
Abstract: This method involves increasing the self-inductance L of the system without correspondingly increasing the effective resistance of the said system. The device for its implementation comprises at least one surface coil consisting of one or more turns of the same conductor (L1) associated with at least one capacitor (C1) in parallel; impedance matching is achieved either by capacitive coupling or by self-inductive coupling. The device includes at least one self-inductance (L2, L2C2, LNCN) connected in series in the resonant circuit of the coil and not coupled to the biological medium (10).
Patent FR-2656291-A1 (FR)
Title: Apparatus for the concertina folding of a flexible continuous sheet
Inventor: JEAN RETY
IPC: B65H45/101
Filed: 1989-12-22
Abstract: 1. The invention relates to an apparatus for the concertina folding of a flexible continuous sheet. 2. This apparatus essentially comprises: a reception platform (21) intended to receive the folded continuous sheet, this platform being lowered progressively as the stack formed on this platform by the folding of this continuous sheet increases in height, a guide device (37) mounted so as to swing about a spindle (35), and an entrainment member (38) for engaging the continuous sheet from the top of the device (37) and to entrain it, through the latter, towards the platform (21). The oscillatory motion of the device (37) depends only on the movement of the continuous sheet through the device and on the position occupied by this continuous sheet as it is being folded on the platform (21). 3. Application to the folding of continuous sheets of paper coming from a printer (printing machine).
Patent FR-2656734-A1 (FR)
Title: Cable electrique ou a fibres optiques marquable par plusieurs types de lasers.
Inventor: JEAN-PIERRE FERLIER
IPC: G02B6/44
Filed: 1990-01-03
Abstract: Câble électrique ou à fibres optiques marquable par laser, à couche extérieure formée par un vernis permettant la réalisation du marquage, comportant une sous-couche interne (13) munie d'un pigment lui conférant une couleur sombre, et une couche externe (14) munie d'un pigment lui conférant une couleur claire, et sublimable sous l'effet d'un rayonnement laser (10). Le pigment de la couche externe est transformable sous l'effet du rayonnement laser d'un autre type que précédemment en un pigment de couleur plus foncée, et l'épaisseur de cette couche externe (14) est telle qu'une brève exposition à un rayonnement laser d'un type déterminé ne modifie que la couleur d'une partie de celle-ci sans la détruire.
Patent FR-2657019-A1 (FR)
Title: Alarm diffuser
Inventor: JEAN-CLAUDE VIEILLARD
IPC: A61L9/14
Filed: 1990-01-12
Abstract: Device for diffusing particles of odiferous liquids in a fine mist. The invention relates to a device making it possible to diffuse, in a room, a fine mist of particles of an odiferous liquid in order to fragrance, clean, deodorise and purify the atmosphere in the room or to remove stinging insects and prevent certain respiratory disorders. It consists of a casing (1) having an orifice (2) from which a mist of fine odiferous particles escapes. A venturi (3) in a nebuliser (4) produces this fine mist by low pressure under the action of a constant jet of compressed air produced by a micro-pump (5) activated by an electromagnet (6) when the latter is supplied with electrical energy by the user. The device according to the invention is intended in particular for the diffusion of natural aromatic essential odours of plants.
Patent FR-2659507-A1 (FR)
Title: Direct current to direct current converter
IPC: H02M3/07
Filed: 1990-03-09
Abstract: Direct current to direct current converter of the switched-capacitor type, of small dimensions, in which the lower limit value of the input voltage acceptable is low and in which the ripple on the output voltage is small. An input energy source is directly coupled to an output smoothing capacitor (C3) when the input voltage becomes low. Its output voltage is set by setting the conduction resistance of switching elements (1 to 8), so as to switch the links of the capacitors.
Patent FR-2662585-A1 (FR)
Title: Powdered food product for preparing Turkish coffee, and its method of production
Inventor: ANTONIO BIFARO
IPC: A23F5/12
Filed: 1990-06-05
Abstract: The invention relates to a powdered product for preparing Turkish coffee, and to a method for its production. The product is obtained by agglomeration of particles of a homogenous mixture of coffee which has been ground very finely in order to obtain the particle size distribution curve (14) and of a sweetener which has been ground very finely so that its particle size distribution curve is located inside the lune (17). By moistening the mixture, the particles of coffee stick to the superficial layer of syrup formed on the particles of sweetener. After drying, the powder obtained is made up of porous granules and dissolves easily in water for the preparation of Turkish coffee by boiling.
Patent FR-2663105-A1 (FR)
Title: Protection device with capacitive sensor for an industrial robot or similar machine
Inventor: ERIC NIEL
IPC: F16P3/14
Filed: 1990-06-11
Abstract: The device affords safety against intrusion into the volume surrounding the moving arm (2) of a robot and its end member (3), using an on-board capacitive proximity sensor. The sensitive element (4) of the sensor, propagating an electric field (5) is mounted on the arm (2) in the region of the end member (3). Frequency slaving is envisaged and, preferably, comparison of the frequency responses obtained over time during an undisturbed reference cycle of the robot and during a normal operating cycle, possibly disturbed. Application to the detection of intrusion of an individual, or any other disturbance in the environment, into the changing volume surrounding the arm (2) and the end member (3), with command to stop the robot.
Patent FR-2664181-A1 (FR)
Title: Device for controlling the output from spray nozzles
Inventor: FREDERIC TIMBERT
IPC: B05B15/00
Filed: 1990-07-04
Abstract: The invention relates to a device for controlling the output from spray nozzles. The device essentially consists of a graduated sleeve (10), made of transparent flexible material, closed at one of its ends (11), which is attached to the body of the nozzle (2) by means of a constriction. Main application: agriculture.
Patent FR-2664984-A1 (FR)
Title: Appareil de controle non destructif par un rayonnement, comportant une visee laser.
Inventor: MICHEL CORNU
IPC: G01N23/04
Filed: 1990-07-18
Abstract: Appareil de contrôle comprenant un émetteur de rayonnement (7) tel que les rayons X. On ajoute un émetteur (17) d'un rayon lumineux (D) parallèle au bras (3). Un miroir (18) oblique est placé dans le faisceau de rayonnement (E) pour réfléchir le rayon lumineux et le rendre parallèle au rayonnement de contrôle. On dispose ainsi d'un repérage de la partie contrôlée au moyen d'une caméra (10) placée obliquement sur un bras (3) sans devoir rapprocher l'émetteur (17) volumineux des pièces strictement nécessaires au contrôle. Comme d'autre part le miroir (18) est transparent au rayonnement, l'efficacité n'est pas diminuée. L'invention est particulièrement utile pour le contrôle de soudures dans des alésages étroits.
Patent FR-2664960-A1 (FR)
Title: Bague d'etancheite a levre.
Inventor: MICHEL SAXOD
IPC: F16J15/32
Filed: 1990-07-20
Abstract: L'invention est relative à une bague d'étanchéité à lèvre comportant une armature métallique sur laquelle est adhérisé un corps, notamment en élastomère, formant lèvre d'étanchéité, et conformé avec une arête d'étanchéité venant au contact d'une pièce cylindrique mobile en rotation ou en va-et-vient autour de laquelle une étanchéité doit être réalisée. Elle comporte en au moins un emplacement de la lèvre d'étanchéité (3) autre que l'arête d'étanchéité (4), au moins un élément formant masselotte (7).
Patent FR-2650625-A1 (FR)
Title: Manchon et ancrage dynamique
Inventor: MCCARTNEY CLIFFORD A
IPC: E21D21/00
Filed: 1990-08-02
Abstract: L'invention concerne un ancrage dynamique pour formation terrestre. Elle se rapporte à un manchon de matière plastique 10 comprenant un corps creux à une surface duquel sont formées des gorges 14 formant des parties relativement souples et permettant l'écoulement éventuel d'une barbotine. Dans un mode de réalisation, le bord antérieur est effilé et permet la rupture d'une cartouche de barbotine introduite préalablement. Application aux ancrages de fixation des boulons de toit.
Patent FR-2669013-A1 (FR)
Title: Improvements made to friction shafts for driving reels (bobbins)
Inventor: JEAN ACHARD PICARD
IPC: B65H18/10
Filed: 1990-11-08
Abstract: Direct friction shaft for reels receiving webs of material such as, in particular, paper, which is adequate to permit a sliding of the reels on the shaft during winding-up of the web material in order to compensate, in particular, for the differences in tension and in diameter, characterised in that it includes longitudinal friction bars (14) positioned in housings (16) opening out on slots (16') made in the surface of the said shaft (12) and which subject to direct friction the mandrels (10) on which the said coils are wound up, by means of bladders (18) subjected to a specific air pressure so as to apply the said bars against the respective inner surface of each mandrel.
Patent FR-2671375-A1 (FR)
Title: Method for working oil deposits in "double completion"
Inventor: JEAN CHAIX
IPC: E21B33/122
Filed: 1991-01-04
Abstract: The working of an oil deposit in "double completion", according to the accepted term of the art, normally involves the use of two production tubes which are arranged side-by-side in a well in order to separately raise hydrocarbons from two separate producing layers (210, 220). The present invention instead proposes two production tubes (10, 30) which are concentric so that the passage cross sections for the hydrocarbons are, for an identical size of well, appreciably increased. The corresponding working method then provides for the use of a safety system which is already known, but hitherto used in another context. This system comprises a sleeve (100) designed to cross over the flows of hydrocarbons established respectively in the central pipe (110) and in the annular gap (9) between the two production tubes (10, 30). Two safety valves (50) are furthermore fitted on either side of the sleeve (100) in order, in the event of an accident, to interrupt the flow in the central pipe (110).
Patent WO-9114217-A1 (WO)
Inventor: DOUBLET PIERRE
IPC: B44B5/02
Filed: 1991-03-12
Abstract: L'invention concerne un procédé de fabrication d'un poinçon d'emboutissage. Ce procédé comporte les étapes suivantes: (a) on numérise les valeurs d'une image, (b) on grave automatiquement et directement le poinçon, la trajectoire du poinçon étant continue. On transforme l'image numérique en une surface continue, on trace des courbes de niveau de cette surface, les courbes fournissant la trajectoire continue de gravure. Application à l'emboutissage de toiles pour la fabrication de papier filigrané.
Patent FR-2673381-A1 (FR)
Inventor: GILLES DU GARDIN
IPC: A63B49/04
Filed: 1991-02-28
Abstract: Racket for ball game or the like (tennis, squash, badminton, etc.). <??>Its frame (6) is visually symmetrical relative to the central longitudinal plane (1) passing via the handle (3) and containing the centre of gravity of the racket, but, by virtue, for example, of the incorporation of shock-absorbing elements (9 to 11) on one side (6g) of the frame (6), it is divided into two right/left half-parts which, although of visually identical shape, in reality have different physical characteristics.
Patent FR-2674451-A1 (FR)
Title: Method of cleaning the front part of a pneumatic device for spraying a liquid coating substance, and pneumatic device for spraying such a substance
Inventor: PIERRE CHABERT
IPC: B05B15/02
Filed: 1991-03-26
Abstract: Cleaning of the front face and/or of the channels of a pneumatic device for spraying a liquid coating substance, such as a paint or a varnish. According to the invention, cleaning liquid is projected in the vicinity of the front part (25a) of the projector, thereby bringing the cleaning liquid into the spraying device itself, for example via conduits and drilled holes (62, 63) as far as one or more orifices (24a, 28a) made in the front part.
Patent FR-2676409-A1 (FR)
Title: Windscreen wiper with streamlined ends
Inventor: JEAN-PIERRE JEHANNET
IPC: B60S1/38
Filed: 1991-05-13
Abstract: The invention relates to a windscreen wiper (14) of the type including a wiper blade (16) connected to a windscreen wiper (10) by a pressure distribution structure (waffle tree) (20, 22, 24) including at least one calliper (22), the end part (42) of which constitutes aerodynamic streamlining of the corresponding free end (40) of the wiper blade (16) in order to eliminate the phenomena of aerodynamic turbulence which appear close to the ends of the windscreen wiper, particularly for high speeds of forward travel of the vehicle.
Patent FR-2661859-A1 (FR)
Title: Manche d'outil metallique tubulaire.
Inventor: ENNIO CORRADO
IPC: B25G1/10
Filed: 1991-05-14
Abstract: Manche d'outil, en particulier pour une pelle, comprenant un corps tubulaire constitué par une plaque ou feuille (12) en alliage léger, qui est incurvée autour de l'axe longitudinal du manche et dont les bords longitudinaux sont assemblés par agrafage (16). Ce manche peut être rempli d'un matériau isolant (18) et muni de trous (20) sur toute sa longueur ou sur une partie de celle-ci.
Patent FR-2666034-A1 (FR)
Title: Procede et appareil pour commander un mandrin evaseur de tube.
Inventor: GRAY KENNETH PETER
IPC: B21D39/08
Filed: 1991-08-23
Abstract: Procédé et appareil pour commander, lors de la fabrication d'échangeurs thermiques titulaires à ailettes de refroidissement plates, le fonctionnement d'un mandrin évaseur de tube de telle sorte que les deux jambages (14) de chaque tube en épingle à cheveux d'un échangeur thermique soient mandrinés en même temps. Une alimentation d'air comprimé est dirigée au travers d'un jambage d'un groupe sélectionné de jambages de tubes à extrémités ouvertes. Des capteurs de pression (31) localisés au niveau des extrémités d'autres jambages du groupe détectent le tube, s'il existe, au niveau duquel il y a une augmentation de la pression en établissant une continuité entre ce jambage et le premier jambage et en identifiant ainsi les deux jambages en test en tant que parties de la même épingle à cheveux. D'autres jambages, du même groupe et d'autres groupes, entre lesquels il y a une continuité de la pression sont de manière similaire détectés et identifiés.
Patent FR-2681662-A1 (FR)
Title: Pipework fitting assembly and method for fitting it
Inventor: ERIC BRANDLI
IPC: F16L5/12
Filed: 1991-09-20
Abstract: The invention relates to a pipework fitting assembly of the sort including a head (3, 5, 203, 303) and a stem (20, 220, 320) intended to be mounted in a through-hole (11) in a support (10) in order to carry a tightening nut (12). A fastening sub-assembly (2, 202, 302) is formed from the said stem (20, 220, 320) and from a positioning ring (21, 221, 321) so that when the fastening sub-assembly (2, 202, 302) is fitted on the support (10), the installation of the head (3, 5, 203, 303) can take place at any moment thereafter.
Patent FR-2684237-A1 (FR)
Title: Circuit integre de lasers semiconducteurs et procede de realisation de ce circuit.
Inventor: BERNARD GROUSSIN
IPC: H01S5/42
Filed: 1991-11-22
Abstract: L'invention concerne les circuits intégrés de lasers, dans lesquels des barrettes (30) de lasers sont alimentées en série, avec retour du courant par le substrat. Lorsque le substrat (27) est semi-isolant, seule la première couche épitaxiée (40) est conductrice. Pour diminuer sa résistance électrique, une pellicule superficielle (51) du substrat est rendue conductrice par diffusion d'un agent dopant. Application aux lasers semiconducteurs de puissance.
Patent FR-2684882-A1 (FR)
Title: Flexible link for a trampoline embedded in a receiving pit intended for acrobatic sports
Inventor: GERARD BARBAFIERI
IPC: A63B5/11
Filed: 1991-12-16
Abstract: Link for a trampoline embedded in a receiving pit, characterised by a non-stretched cable (9), which can be adjusted in terms of length, equipped with joining pieces (10) or eyelets receiving the springs of the trampoline (4) and the elastics (7) of the receiving pit, the whole assembly being protected by a tarpaulin (canvas sheet) (14) which is itself covered with a flexible cloth (17) arriving on the fabric of the trampoline at the attachment line (15).
Patent FR-2686678-A1 (FR)
Title: Method and device for lining pipes
Inventor: ANDRE CELLIER
IPC: F16L55/26
Filed: 1992-01-27
Abstract: The invention relates to a method and to means permitting the lining of new cylindrical pipelines or pipelines to be renovated. It consists in carrying out lining by unrolling at least one tape located inside the pipeline regardless of the angle of the latter with respect to a horizontal plane. In the application represented (garbage chute), the reel 3 of tape is rotationally driven via gearing 6 by a motor 5. The guide sleeve 2 prevents flattening of the lining. A device 8 welds the joining overlapping turns. The assembly is stabilised. Electronic means 19 make it possible to ensure synchronisation of the linear speed of the whole device, of the angular speed of unwinding of the reel 3 of tape, of the welding device 8 and of the device 17-18 for injecting a curable substance such as a resin between the pipeline and the lining.
Patent FR-2688069-A1 (FR)
Title: Systeme de radiolocalisation, en particulier pour trajectographie de ballons meteorologiques.
Inventor: GUY VARIERAS FRANCOIS
IPC: G01S19/09
Filed: 1992-03-02
Abstract: La présente invention concerne un système de radiolocalisation comprenant des translateurs (300) embarqués sur des mobiles et au moins une station au sol conçue pour traiter les signaux translatés reçus en provenance des translateurs (300), caractérisé par le fait que les translateurs (300) comprennent un étage (310) de translation de fréquence piloté par un oscillateur local (308) et des moyens (310) conçus pour superposer au signal réémis par chaque translateur embarqué (310) un harmonique n de l'oscillateur local (308) utilisé.
Patent FR-2688364-A1 (FR)
Title: Procede et systeme permettant d'obtenir un reseau d'emetteurs fm, notamment monofrequence synchrone.
Inventor: ANDRE LASCAUX
IPC: H04H20/67
Filed: 1992-03-06
Abstract: Procédé et système pour commander un réseau d'émetteurs (12) travaillant en modulation de fréquence à une fréquence finale d'émission (Fx) dans lequel les émetteurs (12) sont alimentés par signal analogique (SC), notamment un multiplex vidéo, incluant au moins une première sous-porteuse (SF0 ) modulée par un programme BF. Une seconde sous-porteuse (SF2 ) non modulée et de fréquence inférieure à la fréquence finale d'émission (Fx) est utilisée dans chaque émetteur (12) pour transposer la première sous-porteuse modulée (SF0 ) par le programme BF à la fréquence finale d'émission (Fx). Une mise en phase des signaux modulants et/ou une atténuation des interférences HF dans les zones de recoupement peuvent être mises en œuvre.