baber/WOPTO huggingface dataset:
Patent EP-0428218-A1 (EP)
Title: Device for a rotating disc-shaped information carrier
Inventor: CHRISTIAENS ALOIS EDUARD
IPC: G11B19/20
Filed: 1990-11-09
Abstract: The device comprises a frame (1), a turntable (3), and an electromagnetic drive unit comprising a stator section (5) and a rotor section (7). The turn­table, which is rotatable about a shaft (19), and a frame portion (4) have facing annular bearing surfaces (21A and 21B respectively) to form a dynamic axial bearing. The bearing surfaces are coaxial with the shaft and a radially spaced from this shaft. One of the bearing surfaces has at least one pattern of grooves which causes a pressure to be built up in a medium present between the bearing surfaces during rotation of the rotor section relative to the stator section.
Patent EP-0382340-A1 (EP)
Inventor: VOLLSTEDT THOMAS J
IPC: C02F9/00
Filed: 1990-01-10
Abstract: A two-stage process for purifying wastewater includes the steps of biophysical anaerobic treatment (12) to remove the majority of the COD, followed by biophysical aerobic treatment (28) to further purify the wastewater. A powdered adsorbent, preferably powdered activated carbon, is used with biological solids in each treatment step. Excess biophysical solids from the aerobic step (28) are transferred to the anaerobic step (12) for digestion. Fresh powdered adsorbent is added to the aerobic treatment step (28) to compensate for that transferred to the anaerobic treatment step. Solids concentration in the anaerobic step (12) is controlled by wasting solids to disposal.
Patent EP-0404348-A1 (EP)
Title: Friction stay
Inventor: MAYES JOHN
IPC: E05C17/32
Filed: 1990-05-22
Abstract: A slider (17) for a track (10), such as the track of a friction stay, comprises a slider body (17) adapted to be slidably received in the track, and the slider body includes a recess (22) having a cam (24) mounted therein. Rotation of the cam causes it to bear against the sides of the recess, which are thereby slightly deformed. This deformation increases the frictional engagement of the slider with the track.
Patent EP-0403131-A1 (EP)
Inventor: BRUGMAN JOHANNUS ANTONIUS HENR
IPC: B21D7/08
Filed: 1990-06-04
Abstract: An apparatus method for bending channel cross-­section strip or panel material in which the material is passed between an infeed roller set 10, 16, 18, an intermediate roller set 12, 20, 22 and an outfeed roller set 14, 24, 26. At least one of the rollers of each roller set has two axially spaced annular projections which define an accommodation space for the flanges of the strip material. The axial spacing between these annular projections is reduced between the infeed and outfeed roller sets to enable the panel cross-section to be retained over a wide range of panel materials and curvatures.
Patent EP-0460318-A1 (EP)
Inventor: GUEGUIN MICHEL
IPC: C22B34/12
Filed: 1990-06-08
Abstract: Synthetic rutile is prepared from titaniferous slags containing alkaline-earth metal impurities, such as magnesium oxide, by a method comprising contacting the slag with chlorine at a temperature of at least about 800°C, and then leaching the chlorine-treated slag with hydrochloric acid at a temperature of at least about 140°C.
Patent EP-0405822-A1 (EP)
Inventor: LUCEK JOHN ZDISLAW
IPC: H01L29/68
Filed: 1990-06-20
Abstract: A semiconductor power switching device has an insulated gate (24) which establishes charge carier flow between a terminal (GR) and a base region (12), to provide current flow through the device between collector and emitter terminals (C,E). The device in effect comprises a bipolar transistor with an integral MOSFET for driving its base, so that a small signal applied to the gate drives the bipolar transistor into saturation. In use the collector is connected to a supply rail though a load and the terminal (GR) is connected directly or indirectly to the same rail.
Patent EP-0473853-A1 (EP)
Inventor: JOHAL SARJT S
IPC: C08B30/00
Filed: 1990-09-06
Abstract: The instant invention is a process for the recovery from an aqueous solution of water soluble biopolymers, in particular polysaccharides, gums, agar, agarose and starches by the addition of polyoxide solution to the biopolymer containing solution. The biopolymer is then separated and collected.
Patent EP-0474931-A1 (EP)
Inventor: TANAKA SOKICHI
IPC: B65B63/08
Filed: 1990-09-12
Abstract: In an automatic molten substance bagging method and system a carrying can (4) in which a bag (3) is received is first transported to a position below an injector (11), and vacuum attracting pads (56) are moved toward and then away from each other on the opposite sides of the bag to attract by vacuum and open a mouth portion of the bag (3) (Figs. 12 and 13). Then, the bag (3) is lifted by the vacuum attracting pads until a nozzle (28) of the injector (11) is inserted into the open mouth portion of the bag (3) and the mouth portion of the bag is clamped by clamp members (81), whereafter the carrying can (4) is lifted a little (Fig.14). Then, molten substance is injected into the bag from the injector (11), and during such injection, the carrying can (4) is lifted further (Fig.16). After a predetermined amount of molten substance is filled into the bag, the bag is released from the clamp members (81) and then the carrying can (4) is lowered to a vertical position at which the carrying can is subsequently transported away from the position below the injector (11), (Fig.17).
Patent EP-0406060-A1 (EP)
Title: Magnetoresistive effect transducer
Inventor: FRIEDERICH ALAIN
IPC: G11B5/39
Filed: 1990-06-19
Abstract: In this sensor, the sensitive element consists of a monocristalline magnetic metallic multilayer (2) formed from a stack of layers (20) made from a magnetic material which are separated by layers (21) made from a non-magnetic material, the multilayer being produced such that the layers made from magnetic material have an antiferromagnetic type coupling and that the transition between the antiparallel ordering state and the parallel ordering state is produced over a very small magnetic field interval. 
<??>Application to magnetic recording. 
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Patent EP-0426568-A1 (EP)
Inventor: PIERFITTE MICHEL
IPC: G01T1/164
Filed: 1990-10-31
Abstract: The gamma camera equipment according to the invention comprises two detector heads 10, 30 which are capable either of being combined for an examination of the whole-body type, in which the two detector heads cooperate, or of being separated for a tomography type examination, only one head 10 being used, while the other 30 is in a stand-by position but continues to be fed with current. To strengthen the mechanical cohesion of the assembly, the lower detector head is displaceable on rails 32 which are integral with the stand on which the upper head is mounted, in such a way that this stand forms a counterweight to the lower head, struts 34, 35 being provided only at the end of the rails 32. 
<??>The invention is used in particular in the production of multi-analysis equipment which is compact and can be installed on any kind of surface. 
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Patent EP-0433219-A1 (EP)
Inventor: ANTOGNINI LUCIANO
IPC: H02P6/182
Filed: 1990-11-08
Abstract: The rotor 1 of the motor includes two magnetic poles 2, 3 and a stator equipped with a winding with four elementary coils A1, B1, A2, B2. Electronic means of switching 5 are configured in order to connect these elementary coils, according to a cycle of successive supply states, to the terminals of a current source Ual. Comparator means 10, 11, 12, 13, 14 are provided in order to furnish, in each supply state, a detection signal and means 16, 8, are controlled by this detection signal in order to furnish the means of switching with a switching control signal. The detection signal determines the passage, through a reference value, of the potential of the common connection point, not linked to the current source, of two consecutive elementary coils belonging to different phases. …<IMAGE>…
Patent EP-0430895-A1 (EP)
Inventor: PRATO ALESSANDRO PINI C O CENT
IPC: B60K6/46
Filed: 1990-10-26
Abstract: In order to make rational use of energy during the phases of its conversion and to reduce environmental impact, a hybrid vehicle is proposed for the urban transport of persons and/or things, wherein a current generator operating at a speed (rpm) around the value which corresponds to optimal efficiency, during the whole period of operation of the vehicle itself, charg­es floating batteries of accumulator which, in turn supply an electric-traction motor.
Patent EP-0455694-A1 (EP)
Inventor: FITZPATRICK-ELLIS JOHN FRANCIS
IPC: F16D13/62
Filed: 1990-01-25
Abstract: L'invention concerne un matériau de friction ainsi qu'un ensemble de support pour un plateau entraîné par l'embrayage, ledit ensemble étant conçu pour effectuer une rotation autour d'un axe, et comprenant un support (4), des première et seconde nappes de matériau de friction (20, 22) disposées sur les faces opposées du support (4), chaque nappe de matériau de friction étant disposée autour d'un lieu respectif sensiblement centré sur l'axe. Les première et seconde nappes de matériau de friction sont fixées au support au moyen de première et seconde liaisons, respectivement. La seconde liaison adhésive (24) est en matière polymère assurant un amortissement élastique par rapport au support (4) (dans un sens axial de l'ensemble) pour la seconde nappe de matériau de friction (22), et la première liaison adhésive (23) est pratiquement non élastique n'assurant aucun ou pratiquement aucun amortissement par rapport au support (4) (dans un sens axial de l'ensemble) pour la première nappe de matériau de friction (20), par comparaison avec la seconde liaison adhésive destinée à la seconde nappe de maériau de friction.
Patent EP-0408731-A1 (EP)
Inventor: MAELSON TOMAS
IPC: A61K9/00
Filed: 1990-02-07
Abstract: Le procédé décrit permet de préparer des gels réticulés d'acide hyaluronique ou de dérivés d'acide hyaluronique par réaction avec un réactif contenant du phosphore, en particulier un dérivé d'acide phosphorique. La présente invention se rapporte également à des gels préparés au moyen dudit procédé et à leur utilisation comme dépôt à libération lente pour l'administration in vivo d'hyaluronate ou de composés pharmaceutiques.
Patent EP-0485385-A1 (EP)
Inventor: ZIMMERMANN DETLEF
IPC: H05K9/00
Filed: 1990-03-27
Abstract: L'agencement de protection étanche décrit, qui sert à protéger hermétiquement une porte ou tout autre organe de fermeture (14) contre les fuites d'interférences électromagnétiques (EMI) d'une enceinte, comprend une bande flexible (19) recouvrant une partie périphérique de la porte. La bande flexible est attachée à la porte le long de son bord intérieur. Une bande magnétique (22) ou similaire plaque de force la bande flexible en contact avec l'enceinte à protéger hermétiquement. La bande magnétique (22) peut être montée sur l'organe de fermeture (14) et serrer la bande flexible contre le cadre ou peut être montée sur le cadre et tirer sur la bande flexible (19) pour la plaquer contre le cadre. Des saillies (28) disposées à intervalles le long de la bande flexible assurent un contact électrique fiable entre la bande flexible et l'enceinte. Il n'est pas nécessaire que l'organe de fermeture soit une porte, soutenue par des charnières, mais il peut consister en un panneau (50) soutenu uniquement par l'adhérence de la bande magnétique avec l'enceinte. Plusieurs de ces panneaux (54, 60, 62, 64) peuvent être utilisés pour revêtir et protéger hermétiquement un rack d'équipement électronique (52) du type à structure ouverte. Le contact électrique entre des panneaux adjacents peut s'effectuer au moyen d'un élément de contact (118) monté sur le cadre ou par contact direct entre les panneaux.
Patent EP-0466738-A1 (EP)
Inventor: KONSTANZER MICHAEL
IPC: H02H9/00
Filed: 1990-04-06
Abstract: Ce dispositif de limitation de courant alternatif d'allumage pour appareil d'alimentation en courant à induction (1) comporte un premier commutateur de courant alternatif (23, 45) connecté en série et un circuit à coupure de phase, capable de retarder, à partir du moment d'enclenchement, la connection de l'enroulement du circuit primaire (4) avec la tension alternative du secteur (25, 26). L'électrode de commande (44, 45) du premier commutateur de courant alternatif (23) du circuit à coupure de phase à tampon de tension d'alimentation (30) est reliée avec la sortie du circuit de commande, qui peut produire une tension d'allumage synchronisée avec la tension alternative du réseau (2, 25, 26) lorsqu'on enclenche l'appareil d'alimentation en courant (1) à partir d'une relation de phases préréglable (60, 61) entre 90 et 0 degrés avant un passage par zéro (115) de la tension alternative de réseau. Cette tension d'allumage doit être affaiblie à temps avant un passage à zéro (115) de la tension alternative de réseau (2, 25, 26) pour éteindre l'appareil d'alimentation en courant (1). Un condensateur (86) connecté en parallèle à l'appareil d'alimentation en courant (1) permet de régler de manière définie l'induction résiduelle avant chaque branchement ou après chaque débranchement, de sorte que l'appareil d'alimentation en courant (1) peut toujours être enclenché, dans toutes les conditions, sans que le courant de pointe de démarrage ne doive dépasser le courant de charge.
Patent EP-0426806-A1 (EP)
Inventor: FARRAR DAVID
IPC: C08K5/20
Filed: 1990-05-18
Abstract: On stabilise des compositions polymères pour empêcher la dégradation de leur poids moléculaire en incluant dans la composition un inhibiteur constitué de préférence par un composé non saturé par l'éthylène. L'invention est particulièrement utile lorsque le polymère est un polymère de (méth)acrylamide, dans lequel le niveau de contamination du polymère par monomère de (méth)acrylamide libre est extrêmement bas, et lorsque la valeur LD50 de l'inhibiteur est supérieure à 400.
Patent EP-0526448-A1 (EP)
Inventor: STOELE HAEKON
IPC: B02B3/02
Filed: 1990-04-27
Abstract: L'invention se rapporte à un procédé et à un moyen permettant d'évacuer des particules s'étant déposées dans un courant de fluide à l'intérieur d'un bassin de sédimentation (2). Au fond du bassin de sédimentation (2) est placé un canal de décharge (1) pouvant comporter une vanne de décharge (6). Au fond du bassin de sédimentation est disposée une unité longitudinale flexible (4) qui est conçue avec une forme permettant l'ouverture ou la fermeture de l'espace compris entre le canal de décharge (1) et le bassin de sédimentation (2). L'unité (4) peut remonter ou descendre le canal de décharge (1), de sorte que l'espace et, par conséquent, le point où se situe l'attaque d'aspiration du bassin de sédimentation (2) par le canal de décharge (1) peuvent se trouver en n'importe quel point sur toute la longueur du canal de décharge (1).
Patent EP-0482033-A1 (EP)
Inventor: BIRKETT ALEXANDER NEIL
IPC: H03H9/76
Filed: 1990-07-11
Abstract: Une ligne à retard branchée sur un dispositif (30) à ondes acoustiques de surface (OAS) comprend un TIN (transducteur inter-numérique) (36) d'entrée apodisé, ainsi qu'une pluralité de TIN (32) de sortie non apodisés sensiblement identiques agencés pour recevoir, après des retards augmentant successivement d'une quantité T, une onde acoustique de surface propagée à partir du TIN d'entrée. Chaque TIN de sortie est terminé par une faible impédance, laquelle est constituée par la faible impédance d'entrée d'un amplificateur tampon (34), afin de réduire au minimum la régénération acoustique effectuée par les TIN de sortie. On a prévu des doigts fictifs mis à la terre ayant le même rapport de métallisation que les TIN de sortie, entre les TIN de sortie afin de produire une vitesse d'onde acoustique de surface constante. La ligne à retard est particulièrement adaptée à une utilisation dans l'égaliseur d'un système de transmission radio à ondes hyperfréquences, dans lequel le retard T représente l'inverse de la cadence nominale du système. Des agencements d'égaliseurs à domaines de temps automatiques à fréquences intermédiaires (EDTA FI) utilisant la ligne à retard branchée sur un dispositif à ondes acoustiques de surface sont décrits.
Patent EP-0478702-A1 (EP)
Title: Encapsulation process.
Inventor: SULLIVAN SEAN M
IPC: A61K9/127
Filed: 1990-06-20
Abstract: A process for the encapsulation of oligonucleotides in liposomes includes the suspending of liposomes containing a divalent cation in a solution containing an oligonucleotide and having an osmolarity of less than that of the internal aqueous phase.
Patent EP-0573407-A1 (EP)
Inventor: KORAHNKE GERARD
IPC: H04N5/16
Filed: 1990-09-05
Abstract: La détection de la présence de données numériques, notamment les mots de synchronisation de signaux de la famille MAC, comprend les étapes suivantes: générer séquentiellement (100, 112) une fenêtre temporelle T2 (132) de prévision d'apparition des données numériques (20) et détecter le début des données numériques par détection de seuil (114, 123, 124) pendant chaque fenêtre temporelle T2, tout en vérifiant que le seuil soit franchi dans au moins une fenêtre sur x fenêtres consécutives (102, 116) et que la génération de fenêtre soit recalée après un tel franchissement. La détection peut être appliquée au contrôle du niveau de composante continue du signal vidéo et de son amplitude.
Patent EP-0543811-A1 (EP)
Title: Topical treatment of blepharitis
Inventor: MARTIN NEIL F
IPC: A61P27/02
Filed: 1990-09-17
Abstract: The object of the invention is to provide a method and composition for treating blepharitis or blepharoconjunctivitis which comprises topical administration of a nitroimidazole compound, e.g. metronidazole in a suitable ophthalmic carrier directly to affected ocular tissues. The carrier can be based on an artificial tear solution, an ointment, a water soluble gel, a nonaqueous carrier or an eyelash shampoo.
Patent EP-0482117-A1 (EP)
Title: An electrically and mechanically activatable lock mechanism.
Inventor: WALLDEN LARS
IPC: E05B63/00
Filed: 1990-06-15
Abstract: PCT No. PCT/SE90/00402 Sec. 371 Date Dec. 27, 1991 Sec. 102(e) Date Dec. 27, 1991 PCT Filed May 19, 1990 PCT Pub. No. WO91/00405 PCT Pub. Date Jan. 10, 1991.A lock mechanism of the narrow-profile-lock kind comprises a pivotal latch hook (4) which can be manipulated by a key via a cylinder-lock follower (19), a rack element (18), a follower (17) and a spring-activated drive element (6). The lock plunger can also be activated via an electric motor (11), an output shaft (10), and a worm gear (9) which is in meshing engagement with a dogging element (8) which is pivotally mounted on the same shaft (7) as the follower element (17) and has dogs or projections (8b) which enter sector-shaped slots (17b) having a figure-eight configuration. When the electric motor is started the dogging element (8) is rotated through 90 DEG  and the latch hook (4) adopts its locking position. The electric motor returns immediately the dogging element (8) to its starting position, while the follower element (17) remains.
Patent EP-0446661-A1 (EP)
Inventor: BUCHHOLZ BERNARD
IPC: C07D213/70
Filed: 1991-02-19
Abstract: A process is provided for producing alkylthio-substituted carboxylic acids and arylthio-substituted carboxylic acids and their corresponding alkylthio-substituted thioesters and arylthio-substituted thioesters. The process comprises reacting a mercaptan with a lactone in the presence of an acidic catalyst at temperatures of about 100°C to about 350°C. The process for preparing the thio-substituted carboxylic acids and thio-substituted thioesters may be a continuous process or a batch process.
Patent EP-0502232-A1 (EP)
Inventor: STUCKMANN OTTO DIPL-ING
IPC: C02F11/00
Filed: 1991-03-07
Abstract: In a process for disposal of organic sludge originating from a coating installation, especially of paint sludge from a settling tank for circulation water of a spray-painting installation, the sludge is treated in a first biological stage reacting with low molecular organic compounds under aerobic conditions. A sludge withdrawn from the first biological stage is given a secondary treatment in a second biological stage reacting higher molecular organic compounds under anaerobic conditions. The sludge withdrawn from the second biological stage is dried to give an inert material, while the condensate formed during drying is introduced into the first biological stage. Clear flows from the two biological stages are sterilised and then returned for example into the circulation water. The advantage of this process lies in that the circulation water of the spray-painting installation no longer has to be changed from time to time and the inert material to be disposed of in landfill is only produced in small quantities. 
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Patent EP-0503105-A1 (EP)
Inventor: LIN LUNG-CHING
IPC: G11B15/18
Filed: 1991-03-08
Abstract: A three-stage tape winding speed controller to be applied in a cassette recorder, a video cassette recorder or a video cassette rewinder, comprising a power supply circuit (1), a motor speed and clockwise and counterclockwise rotation control circuit (2), a pulse adjusting and phase inverting circuit (3), a voltage changer (4), an SCR-style control circuit (5), a starting slow speed control circuit (6) and a signal picker (7), controlling the starting speed of a motor for driving a tape winding wheel to be slow for a pre-set period of time, to be very fast after that pre-set period of time to wind the tape very fast and then to be changed slow again just before finishing winding the tape till it is stopped.
Patent EP-0446927-A1 (EP)
Inventor: SHINOHARA KOJI
IPC: H01L39/22
Filed: 1991-03-14
Abstract: A first type of functional superconductive photo-electric device of the invention is constituted with a superconductive thin film (5) having a photo-conductive effect located between two electrodes (6), and converting from a normally conducting state to a superconductive state in response to a light irradiation thereto, wherein the superconductive thin film (5) is formed of a compound semiconductor of Pb chalcogenide added with Pb and/or In more than its stoicheometry, such as Pb 1-x Sn x Te+In, so as to generate its precipitations. A second type of the functional superconductive photoelectric device of the invention is constituted with a photo-conductive material (21;31) formed of Pb 1-x Sn x Te filled in a gap between two superconductive electrodes (22a,22b;32a,32b), wherein the gap width (d) is shorter than 500 times of a coherence length of the super-conductivity. In either type of the invention, when a infrared light is irradiated onto the photo-conductive region (5,21;31) at a predetermined temperature, the coherence length of the superconductivity is extended so as to convert its normally conducting state to superconductive state. On ON/OFF of irradiation of a light shorter than 0.8 µm, Pb 1-x Sn x Te without In switches between the normally-conducting/superconducting states. With In addition, the material persistently converts the state from normally conducting state to the superconductive state.
Patent EP-0453955-A1 (EP)
Inventor: SIEGERT KLAUS DR-ING
IPC: B21D24/08
Filed: 1991-04-18
Abstract: The invention proposes a drawing device in a press for drawing sheet metal formed parts. In order to achieve optimum support of the forces of the blank holder (6), the pressure cheek (8) is regulated in vertically adjustable fashion by a four-point control system which is known per se. In addition, vertically adjustable pins (7) with drives (15) are provided in order to make possible a selective local exertion of force on the blank holder (6). This is controlled or adjusted by means of displacement sensors (16) and force sensors (17). …<IMAGE>…