baber/WOPTO huggingface dataset:
Patent EP-0307228-B1 (EP)
Inventor: BHAGAVATULA VENKATA ADIESESHAI
IPC: G02B6/028
Filed: 1988-09-09
Granted: 1995-01-11
Abstract: The present invention pertains to an optical fiber comprising a transparent core having a maximum refractive index n1 and a radius a surrounded by a layer of transparent cladding material having a refractive index n0 which is less than n1. The refractive indices n1 and n0, the radius a, and the refractive index profile of the core are designed such that:   (a)  DELTA  tau j, the difference between ¦d(Vb)/dV¦j, the normalized delay time of the jth mode and ¦d(Vb)/dV¦0, the normalized delay time of the fundamental mode, is less than about 5 x 10<-><2> over a wide range of V-values where j is equal to 1 or 2 and represents the highest order mode that propagates with a low loss, 0 represents the fundamental mode, b is the propagation constant and V is the normalized frequency, and (b) the normalized waveguide dispersion Vd<2>(Vb)/dV<2> is about equal to or less than 0.2 at V-values near V1_c, the normalized cutoff frequency of the first higher order mode. A fiber exhibiting characteristics (a) and (b) is capable of providing mode equalized two-mode or three-mode and low dispersion single-mode operation. e
Patent EP-0323081-B1 (EP)
Inventor: VAN COTT ELIZABETH
IPC: C12N9/22
Filed: 1988-12-16
Granted: 1995-02-22
Abstract: The present invention is directed to a method for cloning and producing the XbaI restriction endonuclease by 1) introducing the restriction endonuclease gene from Xanthomonas badrii into a host whereby the restriction gene is expressed; 2) fermenting the host which contains the vector encoding and expressing the XbaI restriction endonuclease, and 3) purifying the XbaI restriction endonuclease from the fermented host which contains the vector encoding and expressing the XbaI restriction endonuclease activity.
Patent EP-0338173-B1 (EP)
Title: Ionic dressing for topical administration of drugs to wounds and burns
IPC: A61L15/16
Filed: 1988-11-09
Granted: 1992-02-26
Abstract: Novel wound dressings are provided herein. The wound dressing includes a substrate and a physiologically- or biologically- active agent adsorbed therein. The substrate is chemically modified to have ionic-adsorbing sites thereon. The agent is in its ionic form. Upon contact with body exudate from wounds to which such wound dressing is applied, the physiologically- or biologically- active agent is released in a controlled manner by ion exchange with the ions in the body exudate in proportion to the amount of exudate.
Patent EP-0287534-B1 (EP)
IPC: F23G7/12
Filed: 1988-04-15
Granted: 1992-02-26
Abstract: The system comprises a pyrolysis chamber (2) having a tyre carcass inlet port and communicating with at least a duct for supplying combustion air, the pyrolysis chamber further communicating with a steam generator (4) and having a stationary bottom of frustum of cone shape coaxially communicating with the combustion air duct, rotating arm members being moreover provided, associated with the stationary bottom, adapted to cause waste unburnt material to be discharged from an outlet port formed through the stationary bottom.
Patent EP-0349579-B1 (EP)
Title: Lipid vesicles formed of surfactants and steroids
IPC: A61K9/50
Filed: 1988-03-08
Granted: 1992-01-08
Abstract: Disclosed is a method of making lipid vesicles of a steroid and surfactants which do not form vesicles in the absence of the steroid. The surfactants are polyoxyethylene derivatives of 16-20 carbon ethers and amines.
Patent EP-0485373-B1 (EP)
Inventor: MERRYFUL ALBERT EDWARD
IPC: B29C48/00
Filed: 1988-05-25
Granted: 1995-08-30
Abstract: PCT No. PCT/AU88/00159 Sec. 371 Date Jan. 2, 1990 Sec. 102(e) Date Jan. 2, 1990 PCT Filed May 25, 1988 PCT Pub. No. WO88/09261 PCT Pub. Date Dec. 1, 1988.This invention relates to an improved method of manufacturing a heat exchanger element. In a second aspect the invention concerns a heat exchanger element itself. In the third aspect the invention concerns a reservoir suitable for housing the heat exchanger element to form a heat exchanger. The element is manufactured by extruding polyethylene tubes and winding them into spiral coils. Each coil is located along the length of a rigid horizontal spacer bar in order to maintain even spacing of the coil. The element comprises a stack of coils which are not restrained against vertical movement. The element also comprises a cylindrical void through the center.
Patent EP-0313649-B1 (EP)
IPC: A45D40/26
Filed: 1988-05-13
Granted: 1992-11-04
Abstract: Un applicateur d'échantillons pour un produit (36) ayant une surface de barbouillage, tel qu'un rouge à lèvres, comprend un élémenten plastique allongé, mince, plan (10), moulé pour former un segment de poignée (12), et une cuvette (18). La cuvette (18) fait saillie du plan de l'élément (10) et peut contenir une petite quantité d'échantillon du produit (36), et est recouverte par une feuille adhésive pelable (38) qui peut s'étendre sur toute la face de l'élément (10). La cuvette (18) peut être au moins partiellement entourée par une paroi moulée en forme de U (28) d'un matériau plus fin et s'étendre également en dehors du plan de l'élément au-delà de la cuvette pour permettre à cette dernière, avec l'échantillon (36), d'être soulevée au-dessus du plan de l'élément (10) par application d'une pression à l'aide d'un doigt sur la partie arrière de la cuvette, ou en pliant l'élément autour d'un axe passant par la cuvette.
Patent EP-0316443-B1 (EP)
Inventor: VRZALIK JOHN H
IPC: A47C27/10
Filed: 1988-06-01
Granted: 1995-08-02
Abstract: Method and apparatus for preventing bed sores in a bedridden patient. A low air loss bed (10) is provided including a frame (12), a first set of substantially rectangular air bags (58) for supporting a patient thereon mounted transversely on the frame, and a second set of substantially rectangular air bags (58) for supporting a patient thereon mounted transversely on the frame, and all of the air bags are connected to a gas source. The configuration of the air bags (58) is such that when the first set of air bags (58) is inflated, the patient supported thereon is moved toward the first side of the frame (12) of the low air loss bed (10) and when the second set of air bags (58) is inflated while the first set of air bags (58) is deflated, the patient is moved toward the second side of the low air loss bed (10). The configuration of the air bags (58) also retains the patient on the top surface of the air bags when the patient is rolled in one direction or the other. The operator of the low air loss bed defines the pressures in individual air bags (58) corresponding to each of three positions to which the patient is rotated. The pressures are maintained by a feed back control system which actuates valves connecting the gas source to separate sets of air bags. The three positions to be sequentially attained thereby causing controlled oscillation of the patient from one side of the bed frame to the other. Because each rotation position corresponds to operator defined pressures, the oscillation is customized for individuals of different body weights.
Patent EP-0391900-B1 (EP)
IPC: G01N27/416
Filed: 1988-08-30
Granted: 1993-03-17
Abstract: Détecteur de température NTC et procédé de fabrication d'éléments de détection de température NTC en feuille de céramique. Ces élements sont conçus de manière à ce que l'air ambiant ou l'oxygène amené par pompage électrolytique ait libre accès, le cas échéant par un canal en composé laminé rempli de matériel poreux, à la résistance NTC, qui sera par contre hermétiquement isolée du gaz de mesure. Ces éléments peuvent être fabriqués en feuilles d'électrolyte sec conductrices d'ions de O2- et en feuilles à base de Al2O3. Ces éléments de détection de température NTC ont pour avantages le fait que la courbe caractéristique de la résistance NTC ne varie pas en fonction de la composition du gaz de mesure, leur durabilité, leur vitesse de réaction, la simplicité de leur mode de fabrication et leurs dimensions réduites (qui permettent en particulier de les insérer dans des boîtiers très étroits), et enfin leurs conducteurs électriquement isolés qui les rendent insensibles aux potentiels extérieurs.
Patent EP-0333820-B1 (EP)
IPC: G09F11/18
Filed: 1988-10-07
Granted: 1991-07-10
Abstract: Le système de déroulement d'affiches publicitaires en papier ou autre support d'impression disposées en ruban, s'enroulant d'une bobine (1) sur une autre bobine (2) en passant par deux axes de renvoi (3, 4) et inversement, comporte un ruban de support (5) en polytéréphtalate d'éthylèneglycol et les affiches (8) sont chargées sur ce ruban de support individuellement au moyen d'une fixation élastique.
Patent EP-0344243-B1 (EP)
Title: Quasi-resonant current mode static power conversion method and apparatus
IPC: H02M5/458
Filed: 1988-10-12
Granted: 1993-06-16
Abstract: An inverter has a resonant circuit composed of a parallel connected inductor and capacitor and a filter capacitor connected in series with the inductor which has a capacitance substantially greater than the resonant capacitor. A half bridge or full bridge switching circuit formed of pairs of gate controlled switching devices is connected to a DC power supply and to the resonant circuit and filter capacitor, with the switching devices being switched to provide a relatively high frequency, e.g., 20 KHz or higher, resonant current in the resonant circuit. The filter capacitor is of a size such that the high frequency component of the current flowing in the resonant circuit does not result in a substantial voltage at the switching frequency appearing across the filter capacitor. In addition to the high frequency switching current in the resonant circuit, the switching frequency and the duration of switching is adjusted in a controlled manner such that a lower frequency AC component appears in the current flowing in the resonant circuit and through the filter capacitor such that a voltage at the lower frequency component appears across the filter capacitor.
Patent EP-0325267-B1 (EP)
Inventor: DRUCKER JACOB
IPC: A61K33/40
Filed: 1989-01-20
Granted: 1994-05-11
Abstract: Stable aqueous peroxide dentifrice gel compositions which are stable against both viscosity and peroxide loss and which contain up to 15% by weight of aqueous peroxide, and from about 35% to about 95% by weight of a polyol or a mixture of polyols, from out 0.75% to about 5.0% by weight of a gelling agent and from about 0.05% to about 1.0% by weight of stabilizers are disclosed.
Patent EP-0340785-B1 (EP)
Title: Stabilization of crosslinked very low density polyethylene  (VLDPE)
Inventor: TURBETT ROBERT JOHN
IPC: C08L23/08
Filed: 1989-05-05
Granted: 1995-05-24
Abstract: A composition comprising:   (a) a crosslinkable copolymer of ethylene and at least one alpha-olefin having 3 to 8 carbon atoms, said copolymer having a density equal to or less than 0.91 gram per cubic centimeter and being produced in the presence of a catalyst system containing (i) chromium and titanium or (ii) a catalyst precursor comprising magnesium, titanium, halogen, and an electron donor together with one or more aluminum containing compounds; and (b) tris[2-tert-butyl-4-thio(2 min -methyl-4 min -hydroxyl-5-tert-butyl)phenyl-5-met hyl] phenyl phosphite. m
Patent EP-0365901-B1 (EP)
Inventor: AEMMER PETER F
IPC: B65H63/028
Filed: 1989-10-07
Granted: 1995-12-13
Abstract: The system contains measurement elements (MK) associated with the workstations, and means (PC) for evaluating the signals supplied by the measurement elements (MK), characteristic parameters being obtained during the evaluation for the individual workstations and analyzed for significant deviations from the corresponding desired values. The desired values are formed from the behavior of a statistically comparable collective. At the beginning of each monitoring operation generalized start values are used for the individual desired values, which are converted during the course of the monitoring into more accurate, absolute values. These are updated continuously and form the core data for an automatic inference process. Consequently, the method of functioning of the system, which can be employed in particular in winding rooms for monitoring automatic spoolers, is automatic and objective, and the evaluation of the measurement results becomes independent of the interpretation of the operating personnel.
Patent EP-0347010-B1 (EP)
IPC: G02B7/28
Filed: 1989-06-15
Granted: 1993-03-24
Abstract: A device (1) for programmed spot treatment of a body with a beam of rays, particularly a laser beam (7), using a lens system (4), in which the point of impact of the beam (7) describes a predetermined pattern on the surface of the body particularly a lacquer sealed rotary screen printing stencil 3a, as a result of a relative movement of the body with respect to the device. According to the invention the device (1) has means for maintaining a constant predetermined distance between the centre of the lens system (4) and the centre of the point of impact of the beam (7) of rays with the surface of the body. Said means for maintaining a constant distance comprise distance-determining means, preferably a scannner of the optical, inductive or capacitive type, for determining the distance of the surface of the body from a lens system (4) located between a light source and the body, displacement means (11,12,12 min ,14,14 min ,15), preferably electromagnets cooperating with anchoring plates and spring packets, for displacing the lens system, and control means, preferably a microprocessor, for controlling the displacement means (11,12,12 min ,14,14 min ,15) according to the difference between a set value and the measured value of the distance between the lens system and the surface of the body. The stencil 3a is supported by a roller 3.
Patent EP-0333575-B1 (EP)
IPC: G01F15/075
Filed: 1989-03-14
Granted: 1993-05-19
Abstract: The device incorporates at least one light-reflecting element (11) placed over a portion of at least one conventional rotating element (10) of the timer, a light source (130), a system (140) for detecting and converting the light, two concentric optical fibres, one outer (21) and one inner (22), an amplifier to receive the electrical signal from the conversion system (140), a first comparator circuit to compare the amplified electrical signal with a first threshold (S1), a second comparator circuit to compare the amplified electrical signal with a second threshold (S2), an alarm or indicator device connected to the output of the first comparator circuit and a device (190) for counting and storage of the pulses delivered by the second comparator circuit. 
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Patent EP-0407404-B1 (EP)
Title: A method for the break-down and recycling of solid urban waste by anaerobic fermentation
IPC: C02F3/28
Filed: 1989-03-02
Granted: 1992-11-25
Abstract: The urban waste is crushed (2) to dimensions no greater than 5 cm and intimately mixed (5) with an aqueous suspension of biological sludge preconditioned at a temperature of from 40 to 100°C (6) and having a dry content of from 3 to 30 % by weight, the suspension thus obtained, inoculated with bacterial strains (7) which can effect anaerobic break-down, being supplied to a closed fermentation cell (11, 12, 13) operated as a fluidised bed and being kept under anaerobic fermentation conditions in the cell until the emission of biogas has effectively ceased. In the fermentation cell the suspension percolates through filtration means constituted by a non-woven textile covering the walls and the base of the cell and the flow of percolated suspension is recycled to the cell. The filtration means also facilitate the separation of the biogas evolved.
Patent EP-0418465-B1 (EP)
Inventor: BANERJEE CHANDRA KUMAR
IPC: A24F42/10
Filed: 1990-04-25
Granted: 1996-01-31
Abstract: A cigarette (9) provides tobacco flavor by heating tobacco (11), but not burning tobacco or any other material. A heat source (35) which includes granular magnesium, granular iron, and finely divided cellulose generates heat upon contact thereof with an aqueous solution of potassium chloride. The heat source is in a heat exchange relationship with the tobacco. Heat generated by the heat source heats tobacco in a controlled manner. Flavors volatilize from the tobacco and are drawn from the cigarette and into the mouth of the smoker. Typical heat sources heat the tobacco to a temperature within about 70<o>C to about 180<o>C for 4 to 8 minutes.
Patent EP-0438939-B1 (EP)
Inventor: WIRTH RENE
IPC: C08K5/49
Filed: 1990-12-18
Granted: 1997-02-26
Abstract: The thermoplastic compositions comprise, per 100 parts by weight of a thermoplastic material comprising at least one polymer or copolymer of an alkenylaromatic hydrocarbon and, if appropriate, at least one other thermoplastic or elastomeric resin:   - from 5 to 30 parts by weight of at least one nitrogen compound chosen from melamine and melamine isocyanurate, - from 2 to 10 parts by weight of at least one polyol containing at least 4 hydroxyl functional groups per molecule, and - from 0 to 14 parts by weight of at least one organic ester of phosphoric acid.   A process for their preparation consists in blending the various constituents at a temperature above the softening point of the polymer or copolymer of an alkenylaromatic hydrocarbon, of between 150 and 200 DEG C, for a period of between 1 and 5 minutes in an internal mixer or an extruder. Industrial articles obtained by conversion of the above compositions.
Patent EP-0416131-B1 (EP)
Title: Fil electrique isole
Inventor: INAZAWA SHINJI C O OSAKA WORKS
IPC: H01B13/06
Filed: 1990-03-26
Granted: 1994-10-19
Abstract: Fil électrique isolé destiné à être utilisé comme fil de câblage ou comme fil d'enroulement dans des équipements fonctionnant dans des environnements sous vide poussé ou à haute température. Ce fil comprend un élément de base (1), une couche d'oxyde de chrome (2) et une couche isolante en oxyde (3). L'élement de base (1) comprend un conducteur. La couche d'oxyde de chrome (2) est formée sur la surface externe de l'organe de base (1). La couche isolante en oxyde (3) est formée sur la couche d'oxyde de chrome (2) par l'application d'une solution précurseur d'un oxyde métallique selon le procédé sol-gel ou le procédé de pyrolyse de sel d'acide organique. Le fil électrique isolé présente une excellente flexibilité ainsi qu'une bonne résistance à la chaleur et ne constitue pas une source de particules pouvant adsorber un gaz.
Patent EP-0489742-B1 (EP)
Inventor: WOOD MICHAEL C
IPC: H04L9/14
Filed: 1990-03-14
Granted: 1997-11-19
Abstract: A cryptographic system creates a key table from a single key such that the relationship between the keys in the key table cannot be determined even if the system implementation is known. The system uses variable functions in which the determinants are changed by the variable function chosen by the determinant. Thus, the functions used in creating the key table do not have to be one-to-one functions. From the key table, four blocks of bytes of additional key based determinants are formed which are called masks. The original key does not exist in either the key table or the mask table. The system preferably uses the key table in a multiple round encryption process. The keys chosen from the table for a key addition operation are a function of the plaintext, the current state of the ciphertext, and the mask values. Therefore, the order in which the keys are chosen is not predetermined or patterned. The system also selects the other encryption functions, including permutations and substitutions, by the plaintext, current state of the ciphertext and the mask values. The cryptographic system also can include a function referred to as the enclave function. This function operates on lookup tables and creates complete inter-symbol dependency on the block of bytes.
Patent EP-0452432-B1 (EP)
Inventor: HUANG ANDREW B
IPC: B01D35/30
Filed: 1990-08-29
Granted: 1995-11-08
Abstract: A spin-on type oil filter with an improvement to the normal filter body that allows non-tool assisted, easy hand installation and removal of the filter unit in open and close tolerance situations.
Patent EP-0447516-B1 (EP)
Title: Indicateur de niveau forme de composants assemblables
Inventor: SCHWALD ROLF
IPC: G01F23/28
Filed: 1990-10-05
Granted: 1995-08-23
Abstract: Un indicateur de niveau formé de composants assemblables comprend un transducteur acoustique ou ultrasonique agencé dans un premier logement qui forme une unité fonctionnelle fermée en soi et un circuit électrique agencé dans un autre logement séparé du premier qui forme une deuxième unité fonctionnelle. Les unités fonctionnelles sont conçues de sorte que l'on puisse assembler avec les différents composants des indicateurs de niveau selon les conditions d'utilisation. A cet effet, un disque en acier est agencé au-dessus du transducteur acoustique ou ultrasonique, ou bien les composants sont scellés avec une masse de scellement disponible dans le commerce, ou encore l'on choisit parmi des logements de transducteurs acoustiques ou ultrasoniques différents mais de mêmes dimensions deux logements similaires séparés pour recevoir le transducteur acoustique ou ultrasonique de l'indicateur de niveau, ou bien l'on assujettit sélectivement l'indicateur de niveau à un récipient, au moyen d'une bride tournante, ou on le suspend au moyen d'un anse à l'intérieur dudit récipient ou au-dessus d'une rigole.
Patent EP-0450012-B1 (EP)
IPC: B01F7/00
Filed: 1990-10-24
Granted: 1993-05-19
Abstract: L'installation présente deux appareils de granulation (1) dotés chacun d'une chambre (5) dont les parois (7) possèdent un chemisage cylindrique (15) avec un axe horizontal (21) et une paroi terminale (17, 19) aux deux extrémités du chemisage. Un rotor (11) monté en rotation autour de son axe (21) est prévu dans chaque chambre (5). Ce rotor est conçu de façon à déplacer dans un sens et dans l'autre, le produit se trouvant dans la chambre en question (5), en fonction de son sens de rotation. Chaque rotor (11) est entraîné en rotation, lors du malaxage et/ou de la granulation d'un produit, par un moteur (35) alternativement dans différents sens de rotation. Chaque chambre (5) est munie d'une sortie (73) à une extrémité. Pour la vidange de la chambre (5), le rotor (11) est entraîné en rotation de manière à déplacer le granulat formé dans ladite chambre (5) vers la sortie (73). L'installation assure un bon malaxage, tout en permettant une vidange rapide de la chambre (5) et est tout à fait appropriée pour une exploitation automatisée.
Patent EP-0454824-B1 (EP)
Title: Outil a tronconner
Inventor: DUERSCHINGER HANS
IPC: B23B27/04
Filed: 1990-11-17
Granted: 1994-03-09
Abstract: Sur un outil à tronçonner, en particulier un corps de coupe (1) comportant un tranchant (3) disposé obliquement dans la face de coupe avec un angle de mise au point (λ), le tranchant (3) présente, entre ses deux zones d'extrémité (9, 10), une zone centrale (11) évidée dont les tranchants de liaison (15, 16) formant entre eux un angle de chanfrein (δ) ont des dimensions différentes. Le point d'attaque (7), avançant dans le sens de la coupe (5) du tranchant de liaison voisin (15), forme avec sa zone d'extrémité voisine (12) un angle d'inclinaison (α) supérieur à l'angle de contre-inclinaison (β) entre l'autre tranchant de liaison (16) et le tranchant de la zone d'extrémité (13) qui avance dans la direction de la coupe.