baber/WOPTO huggingface dataset:
Patent EP-0572130-A1 (EP)
Inventor: MARU TSYUGUO
IPC: H04L27/18
Filed: 1993-05-07
Abstract: An integrated circuit of a quadrature modulator comprising a baseband section implementing π/4 shift QPSK having a simple test circuit is disclosed. The baseband section comprises: an impulse response memory having memory cells each storing a cell data representing a value of impulse response sequence for a impulse response function; and an adder for convolution integral implementing convolution summer from the cell data. The quadrature modulator operates for testing the cell data of the memory cells of the impulse response memory when supplied with a test instruction signal. The test is carried out by reading out all the memory cells of the impulse response memory and adding in the adder for convolution integral the cell data read out from all the memory cells. The number of I/O terminals for carrying out the test for the impulse response memory and the chip size of the integrated circuit are reduced.
Patent EP-0577272-A1 (EP)
Inventor: NENCINI PIERGIORGIO
IPC: C01F11/46
Filed: 1993-06-08
Abstract: A simple process for preparing acicular calcium sulphate dihydrate is provided in which a slurry of calcium carbonate containing 100 to 800 grams per litre calcium carbonate is mixed with a solution of sulphuric acid containing 80 to 500 grams per litre sulphuric acid in proportions which produce a calcium sulphate slurry having a pH from 0.5 to 1.5. The process can be used to neutralise by-product sulphuric acid from the preparation of titanium dioxide with crushed limestone. Preferably the calcium sulphate slurry is stirred after formation to reduce the level of unreacted carbonate. The calcium sulphate produced has an aspect ratio of at least 4:1 and has excellent properties for use in paper. The process enables the production of acicular calcium sulphate without employing special crystallisation procedures.
Patent EP-0575116-A1 (EP)
Inventor: TERRELL JAMIE B
IPC: E21B29/02
Filed: 1993-06-11
Abstract: A chemical cutting tool (7) for use in a well bore incorporates a cutting head assembly (18) which is particularly useful in the cutting of high strength and corrosion-resistant downhole tubular goods such as high chrome-nickel stainless steel. The tool has an elongated tool body adapted to be inserted into a conduit such as a tubing string (4) or casing within a well and positioned at a downhole location thereof for effecting a cutting action of the conduit. The tool body comprises a chemical section (16) adapted to contain a chemical cutting agent and a cutting section (18a) adapted to receive the chemical cutting agent from the chemical section. The cutting section has a plurality of cutting ports (20) therein for the discharge of the chemical cutting agent. The cutting ports extend transversely of the major axis of the elongated tool body and are arranged in at least first and second groups. The first group of cutting ports is arranged in a configuration conforming to the desired shape of the cut and define a first planar pattern. The second group of cutting ports conform generally to the first pattern and are in a canted relationship with respect to the second pattern. At least some of the cutting ports in the first group are in a staggered relationship longitudinally along the tool body relative to at least some of the cutting ports in the second group. The cutting ports in the elongated tool body are arranged circumferentially of the tool body to provide first and second planar patterns, generally normal to the major axis of the tool body. The planar patterns are in a converging relationship such that they intersect at a locus externally of the tool body.
Patent EP-0577325-A1 (EP)
Inventor: SHOGAKI TAKESHI
IPC: C07D409/14
Filed: 1993-06-23
Abstract: 1. A compound of the formula:
       
 wherein the symbol of a solid line with a broken line means a single bond or a double bond, 
R and R' are independently selected from the group consisting of hydrogen atom, halogen atom, lower alkyl, nitro, unsubstituted amino and substituted amino, 
A and B are independently selected from the group consisting of hydrogen atom, lower alkyl optionally substituted with a lower cycloalkyl, aryl optionally substituted with one or more halogen atoms and the group: -Y-R² 
wherein Y is lower alkylene and R² is the group:
       
 wherein m is integer of 1 to 3, n is 0 or 1, Z is >N-, >CH- or >C=, R³ is diaryl(lower)alkyl optionally substituted with one or more halogen atoms or is condensed heterocyclic group optionally substituted with oxo, with the proviso that
     (a) at least one of A and B is the group -Y-R², and   (b) when A is hydrogen atom and B is the group -Y-R², then Z is >CH- or >C= if R³ is condensed heterocyclic group optionally substituted with oxo and n is O     
 or a pharmaceutically acceptable salt thereof. The compounds of the above formula have antiallergic activity.
Patent EP-0578495-A1 (EP)
Inventor: CHAMBERLIN III WILLIAM BRICKER
IPC: C10L1/18
Filed: 1993-07-08
Abstract: This invention relates to a nitrogen-containing soluble organic composition comprising a combination of:
     (A) at least one natural oil comprising an animal oil or vegetable oil comprising a triglyceride of the formula
      wherein R¹, R² and R³ are independently saturated or unsaturated aliphatic hydrocarbyl groups containing from about 8 to about 24 carbon atoms and   (B)(I) a detergent/dispersant comprising at least one acylated, nitrogen-containing compound having a substituent of at least 10 aliphatic carbon atoms made by reacting a carboxylic acylating agent with at least one amino compound containing at least one -NH group, said acylating agent being linked to said amino compound through an imido, amido, amidine, or acyloxy ammonium linkage.   
     In another embodiment, the invention comprises a nitrogen-containing soluble organic composition comprising a combination of:
     (A) the natural oil as described above with   (B) at least one detergent-dispersant selected from the group consisting of
   (I) the acylated, nitrogen-containing compound as described above,   (II) at least one neutral or basic metal salt of an organic sulfur acid, phenol or carboxylic acid;   (III) at least one hydrocarbyl-substituted amine wherein the hydrocarbyl substituent is substantially aliphatic and contains at least 12 carbon atoms with the proviso that said amine is not the amino phenol (C); and   (IV) at least one nitrogen-containing condensate of a phenol, aldehyde and amino compound having at least one -NH group; and       (C) at least one amino phenol of the general formula
      wherein R⁴ is a substantially saturated, hydrocarbon-based substituent of at least 10 aliphatic carbon atoms; a, b and c are each independently in integer of one up to three time the number of aromatic nuclei present in Ar with the proviso that the sum of a, b and c does not exceed the unsaturated valences of Ar; and Ar is an aromatic moiety having 0-3 optional substituents selected from the group consisting of lower alkyl, lower alkoxyl, nitro, halo or combinations of two or more of said substituents.
Patent EP-0594291-A1 (EP)
Inventor: SHIBANO MITSUGI
IPC: A61K31/695
Filed: 1993-09-01
Abstract: 57 An intermediate useful in the synthesis of milbemycin derivatives having an ether bond at the 13-position and which is represented by the general formula (IIId) :
       
wherein R represents a methyl group, an ethyl group, an isopropyl group or a sec-butyl group, and R 5  and R 6'  each individually represents a hydrogen atom or a protecting group, and related precursors as well as to a process for producing these intermediates.
Patent EP-0592191-A1 (EP)
Inventor: MILLER ROBERT EARL
IPC: G08B13/04
Filed: 1993-10-05
Abstract: An activation circuit for a battery-operated security alarm detection system where current drain and, therefore, battery life is of concern. The circuit (20) employs a non-current drawing piezo element (30) which only sees part of the frequency band of interest to briefly activate or "wake up" a current-drawing electret microphone (40) which has a bandwidth broad enough to see the entire audio band of interest.
Patent EP-0601722-A1 (EP)
Inventor: YAMAGUCHI EIJI
IPC: B01J21/04
Filed: 1993-11-18
Abstract: A catalyst for hydrosulfurization and hydrodenitrogenation of hydrocarbon oils comprises an alumina carrier substance, at least one active metal element selected from Group VI metals in the periodic table, at least one active metal element chosen from Group VIII metals in the periodic table, phosphoric acid, and an additive agent. The additive agent is at least one selected from dihydric or trihydric alcohols having 2 - 10 carbon atoms per one molecule, ethers of the alcohols, monosaccharides, disaccharides and polysaccharides. The catalyst has high catalytic activity, excellent productivity and low pollution. 
     A method for preparing the catalysts comprises impregnating the alumina carrier substance with a solution mixed with a certain amount of the active metal elements, phosphoric acid and the additive agent and drying the impregnated carrier substances at a temperature of less than 200°C.
Patent EP-0576337-A1 (EP)
Inventor: DELPONTE PATRICK
IPC: A61F2/08
Filed: 1993-06-18
Abstract: This device consists of a needle (1) at whose end there is fixed, by crimping, a flexible tie piece (2) having a suitable resistance to tensioning and equipped, at a distance from the needle, with a harpoon element (3) and, at the free end, with an end-piece (4) which is used for gripping and which is fixed by crimping, the said device additionally comprising a bearing washer (5) and a deformable stop member (6) which are both intended to be engaged on the tie piece. With the aid of the needle it is possible to introduce the tie piece into the two stumps of the tendon in the axis of these stumps, and the needle emerges in the retromalleolar fovea, the harpoon element anchoring in the upper stump and the washer being engaged on the tie piece in order to bear in the retromalleolar fovea. The stop member is deformed on the tie piece against the bearing washer, which ensures the tensioning of the tie piece and the telescoping of the fibres of the stumps in the rupture zone. <IMAGE>
Patent EP-0662437-A1 (EP)
Inventor: CESTONARO JEAN
IPC: B65H19/18
Filed: 1993-12-16
Abstract: The connector consists of a rotary striker arm (3) with a hammer (4) on one end and a cam (37) on the other. When a paper strip (2) is beginning to run out, a power cylinder (51) actuates a roller (53) which interacts with the cam (37) and brings the surface of the hammer into contact with the paper. The mechanism also incorporates front and rear cutters which cut off the free ends of the paper strips before and after the joint.
Patent EP-0725684-A1 (EP)
Title: Appareil de flottation pour obtenir des concentres de minerais
Inventor: JOHANSSON JAN ERIK
IPC: B03D1/16
Filed: 1993-02-02
Abstract: L'invention se rapporte à un appareil de flottation qui comprend une partie inférieure de pulpe et une partie supérieure de mousse, laquelle s'écoule par drainage sur un bord horizontal supérieur de l'appareil. Lorsque le minerai contient du plomb et du zinc, le plomb contaminé par le zinc est évacué par drainage. La présente invention a pour but d'accroître la teneur en plomb de la mousse évacuée par drainage, ce qu'on obtient en laissant la mousse s'écouler par drainage vers le haut à travers un canal, lequel est conçu de préférence avec une section transversale rectangulaire et avec un angle d'inclinaison inférieur à 90° par rapport à la surface de la mousse. La mousse est en outre pulvérisée avant de quitter le canal, au moyen d'un jet d'eau au moins dirigé vers la partie de la paroi du canal la plus éloignée du bord de drainage du canal.
Patent EP-0630291-A1 (EP)
Inventor: BONSE DIRK
IPC: C02F1/70
Filed: 1993-03-08
Abstract: L'invention concerne un catalyseur à support résistant à l'abrasion, destiné à l'élimination des nitrites et/ou nitrates contenus dans de l'eau polluée, avec formation sélective d'azote. Le composant métallique catalytiquement actif se compose de palladium et/ou de rhodium ou de palladium et d'un métal du groupe du cuivre. Le support se compose d'oxyde d'aluminium des modifications "thêta" et "kappa" et présente un diamètre de pore maximum compris entre 700 et 1500 Å ou bien deux maxima compris entre 100 et 1500 Å. La description concerne également un procédé réalisable en continu, d'élimination ou de réduction de la teneur en oxygène, en nitrites et/ou en nitrates de l'eau par hydratation catalytique. Le procédé est mis en oeuvre au moyen des nouveaux catalyseurs à support, les supports étant en oxyde d'aluminium des modifications "thêta" et "kappa". On évite efficacement une contamination du catalyseur lors de l'utilisation préférentielle selon le procédé par lit fluidisé.
Patent EP-0627958-A1 (EP)
Title: Catalytic multi-phase reactor.
Inventor: RYTTER ERLING
IPC: C10G2/00
Filed: 1993-02-24
Abstract: A reactor for conducting a continuous multi-phase catalytic reaction such as the conversion of syngas to higher hydrocarbon fuels. Gaseous reactants are introduced via a gas-permeable plate into a slurry which includes the product and a finely divided catalyst. The liquid product is separated from the remainder of the slurry by means of a filter unit including a filter member. A pressure differential is established across the filter member by means of a constant level device within the filter unit which maintains a level of filtrate within the filter unit below the level of the slurry. The slurry is maintained in a constant state of agitation by the introduction of the gaseous components as a steam of bubbles. Fluctuations in the pressure differential across the filter member prevent the filter member from clogging and the gas spaces above the filtrate and the slurry are in communication.
Patent EP-0636003-A1 (EP)
Inventor: SHICHMAN DAVID
IPC: A62B17/04
Filed: 1993-02-17
Abstract: L'invention se rapporte à un casque (10) qui protège la tête contre les fumées et les gaz. Ledit casque est fermé hermétiquement de tous les côtés et est pourvu d'une ouverture (12) dans laquelle on passe la tête. Un système de fermeture (24) est prévu au niveau de cette ouverture de façon que le casque puisse être maintenu fermé hermétiquement au niveau du cou de l'utilisateur.
Patent EP-0679269-A1 (EP)
Inventor: RIGGIO CHRIS A
IPC: G05F1/455
Filed: 1993-05-21
Abstract: L'invention décrit un dispositif et un procédé servant à réguler la tension appliquée à une charge. Le procédé comprend la réception d'une tension de réseau de courant alternatif, la génération d'une tension de régime de courant alternatif à partir de la tension de réseau de courant alternatif et l'application de ladite tension de régime à la charge. Un signal mesuré, fonction de l'intensité de la tension de régime de courant alternatif, est produit et sa moyenne est établie, afin de générer un signal de moyenne représentant la valeur moyenne du signal mesuré. La tension de régime de courant alternatif est réajustée en continu en réaction à des modifications du signal de moyenne. Le dispositif de mise en application du procédé comprend des bornes servant à recevoir une tension de réseau de courant alternatif, des moyens servant à générer une tension de régime de courant alternatif à partir de la tension de réseau de courant alternatif, des moyens de branchement servant à appliquer la tension de régime de courant alternatif à la charge, et des moyens de détection de tension servant à générer un signal mesuré fonction de l'intensité de ladite tension de régime de courant alternatif. Des moyens d'établisssement de la moyenne de signal servent à générer un signal de moyenne représentant la valeur moyenne du signal mesuré. Enfin, le dispositif comprend des moyens de modulation de tension de courant alternatif servant à ajuster la tension de régime de courant alternatif en réaction au signal de moyenne. Dans le mode de réalisation préféré du dispositif décrit par l'invention, le moyen de modulation de tension de courant alternatif comprend des moyens de réduction de tension servant à couper la tension de réseau pendant une partie de chaque cycle, la longueur de ladite partie étant déterminée par la valeur moyenne du signal mesuré. Le moyen de modulation de tension comprend éventuellement un dispositif à circuit intégré de régulation de phase servant à commander un thyristor. Le dispositif à circuit intégré de régulation de phase réagit au signal de moyenne pour générer un signal de commande servant à commander un thyristor qui interrompt la transmission de la tension de réseau vers la charge pendant ladite partie de chaque cycle.
Patent EP-0662123-A1 (EP)
Inventor: WEAVER PAUL F
IPC: C12N1/20
Filed: 1993-06-23
Abstract: A process is described for converting organic materials (such as biomass wastes) into a bioplastic suitable for use as a biodegradable plastic. In a preferred embodiment the process involves thermally gasifying the organic material into primarily carbon monoxide and hydrogen, followed by photosynthetic bacterial assimilation of the gases into cell material. The process is ideally suited for waste recycling and for production of useful biodegradable plastic polymer.
Patent EP-0660727-A1 (EP)
Inventor: HAINDL HANS DR
IPC: A61M39/00
Filed: 1993-07-31
Abstract: PCT No. PCT/EP93/02049 Sec. 371 Date Mar. 16, 1995 Sec. 102(e) Date Mar. 16, 1995 PCT Filed Jul. 31, 1993 PCT Pub. No. WO94/06489 PCT Pub. Date Mar. 31, 1994Safety connector for infusion therapy for supplying several lines and having a casing (1) in which there is a chamber (4) that is bordered by an essentially cylindrical inside wall (5) of the casing into which several connecting channels (2) for joining infusion lines open and which has an outlet channel (9) for attaching an outlet line. The cylindrical outside wall of an elastic ring-shaped valve body is in contact with the inside wall (5) of casing (1) that surrounds chamber (4). The safety connector is simple and inexpensive and has an uncomplicated design. The cylindrical contact surfaces between the ring-shaped valve body and the cylindrical inside wall (5) surrounding chamber (4) result in a good seal for the non-return valves even at a low contact pressure. The sealing force can be determined even down to a very low pressure. Thus, for the first time a safety connector suitable for gravity infusion systems is available.
Patent EP-0654983-A1 (EP)
Inventor: CLEMENS ANTON H
IPC: A61Q7/02
Filed: 1993-08-17
Abstract: Un rasoir (10) à main portatif, produisant de la vapeur et utilisé sur la peau, comprend un corps (20) dans lequel se trouve un réservoir (50) de liquide. Un générateur de vapeur est placé dans le corps afin de convertir un liquide en vapeur et d'acheminer la vapeur au contact des surfaces cutanées soumises au rasage.
Patent EP-0617437-A1 (EP)
Inventor: RITTER KAI-UWE GRUNDIG E M V
IPC: H01F21/04
Filed: 1994-02-23
Abstract: The tuning method involves using an air coil encased by an impregnating element which softens and flows-off at the soldering temperature. The air coil is mounted using conventional SMD-technology assembly devices e.g. suction pipette. The inductivity of the air coil is adjusted by altering the winding spacing to achieve the desired frequency. If necessary after adjusting the inductivity, the windings are fixed in their adjusted position by forming a second impregnating element, to avoid microphony.
Patent EP-0639329-A1 (EP)
Inventor: YOSHIDA RYUJI
IPC: A01N37/44
Filed: 1994-08-19
Abstract: Methods for reducing nitrate nitrogen and oxalic acid contents in plants, each of which comprises applying 5-aminolevulinic acid, a salt thereof or a mixture thereof. Nitrate nitrogen and oxalic acid contents in plants having high nitrate nitrogen and oxalic acid contents can be reduced effectively and easily.
Patent EP-0714853-A1 (EP)
Inventor: PHILLIPS RICHARD B
IPC: C01F7/02
Filed: 1994-11-25
Abstract: A method (Fig. 1a) for improving the brightness level of aluminum hydroxide removed from a caustic solution comprises contacting the solution with an adsorbent comprising a calcined compound having the formula: A w B x (OH) y C z ·nH₂O wherein A represents a divalent metal cation selected from the group consisting of: Mg²⁺, Ni²⁺, Fe²⁺, Ca²⁺ and Zn²⁺; B represents a trivalent metal cation selected from the group consisting of: Al³⁺, Fe³⁺ and Cu³⁺; C represents a mono- to tetravalent anion selected from the group consisting of: OH⁻, Cl⁻, Br⁻, NO₃⁻, CH₃COO⁻, C₂O₄²⁻, CO₃²⁻, SO₄²⁻, PO₄³⁻, Fe(CN)₆³⁻ and Fe(CN)₆⁴⁻; and w, x, y, z and n satisfy the following: 0 < z ≦ x ≦ 4≦ w ≦ ½ y and 12 ≧ n ≧ ½ (w-x); and filtering the solution before and/or after said contacting. A preferred adsorbent comprises calcined hydrotalcite. An improved aluminum hydroxide product having a whiteness level of 85% or higher based on a 100% TiO₂ reference standard, having been removed from a caustic solution and decolorized by the foregoing method, is obtained.
Patent EP-0619064-A1 (EP)
Inventor: WAGNER JAMES H
IPC: A01D34/68
Filed: 1994-03-30
Abstract: A device that prevents wrapping of long strands of fibrous material around an exposed rotating shaft (5) has a stationary flange (10) fixed to the chassis (2) or bearing housing (6) for the shaft (5) and a rotating flange (11) fixed to the shaft (5). The flanges (10,11) are positioned to pass one another during each revolution of the shaft (5). When the flanges (10;11) are nearest to one another, a loop of vegetation forms tightly around the flanges (10,11). Continued rotation of the shaft (5) then stretches and tears the loop apart. This loop forming and tearing is repeated for each revolution of the shaft (5) to effectively prevent fibrous material from wrapping around the shaft (5).
Patent EP-0633074-A1 (EP)
Inventor: FIGGE DIETER
IPC: B21B37/50
Filed: 1994-06-16
Abstract: Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Herstellen von warmgewaltztem kohlenstoffhaltigem Stahlband aus einem bandförmig stranggegossenen Vormaterial (1) mit einer Stärke zwischen 25mm und 4mm, das mit Geschwindigkeiten zwischen 3m/min. und 80mm/min. im endlosen Prozeß in ein kontinuierliches Walzwerk mit mindestens zwei minimal beabstandeten Walzensätzen (4,5) eingeführt und unter Zug zwischen den Walzensätzen bei Temperaturen oberhalb 880°C reduziert wird. Um mit einem derartigen Verfahren mit geringem Einsatz von Energie bei niedrigen Investitionskosten die Herstellung eines Bandes zu ermöglichen, das ohne Glühen für Kaltverformungen geeignet ist, wird erfindungsgemäß in drei aufeinanderfolgenden Verfahrensschritten das die beiden Walzensätze verlassende Band in einem dritten Reduzierstich (7) bei einer Endwalz-Temperatur von 810°C bis 790°C verformt, wobei diese Verformung wegen das unten verschobenen Umwandlungspunktes noch im Gamma-Gebiet stattfindet; dann wird das so verformte Band schnell unter den Umwandlungspunkt A3 auf eine Temperatur von ca. 650°C abgekühlt (8) und schließlich zu einem Coil (9) gewickelt, in welchem die Rekristallisation des Bandgefüges bei ca. 600°C erfolgt. <IMAGE>
Patent EP-0696067-A1 (EP)
Inventor: MURAKAMI TADAYOSHI
IPC: H01L31/0352
Filed: 1994-07-13
Abstract: A substrate (100) consisting of a compound semiconductor crystal, a buffer layer (200), a graded layer (300), a light-absorbing layer (400) having a lattice constant smaller than that of the uppermost mixed crystal sublayer of the graded layer, a p-type conductive layer (610), another p-type conductive layer (620), and a capping layer (500) formed on the surface of the light-absorbing layer next to the p-type conductive layer and having almost the same lattice constant as that of the uppermost layer of the graded layer are stacked. An electrode (910) is connected to the substrate, and another electrode (710) is connected to the conductive layer. A tensile force is applied to the light-absorbing layer from the uppermost mixed crystal sublayer of the graded layer, the capping layer, and the conductive layer, thereby suppressing a dark current.