baber/WOPTO huggingface dataset:
Patent EP-0495277-A1 (EP)
Inventor: SCHMIDT ROBERT J
IPC: B01J23/42
Filed: 1991-01-18
Abstract: An improved catalyst particle for the conversion of hydrocarbons comprises a combination of a Friedel-Crafts metal halide, and a surface-layer platinum-group metal component with a refractory inorganic-oxide support, wherein the concentration of platinum-group metal component on the surface layer of the catalyst particle is at least 1.5 times the concentration in the central core of the catalyst particle. The improved catalyst particle is particularly effective for the isomerization of C₄-C₇ alkanes, especially when a principally liquid-phase operation is utilized.
Patent EP-0460793-A1 (EP)
Inventor: KIELY PHILIP ANTHONY
IPC: H01S5/34
Filed: 1991-03-28
Abstract: A high transconductance field effect transistor is realized by controlling the doping level in a conducting channel buried beneath a heterointerface. In one exemplary embodiment, a channel comprising an undoped, high mobility, narrow band gap quantum well (13) in combination with an intermediate band gap layer (12) is formed beneath a heterointerface. The heterojunction interface is between a wide band gap layer (15) and the quantum well region (13). A charge sheet (14) having the same conductivity type as the wide bandgap layer is formed near the heterointerface. Advantageously, the transconductance is enhanced by conduction in the undoped filled quantum well region.
Patent EP-0452200-A1 (EP)
Inventor: TRIPETTE CLAUDE
IPC: C09J133/04
Filed: 1991-04-05
Abstract: These (co)polymers in solution in a saturated apliphatic hydrocarbon containing at least 6 carbon atoms comprise, for 100 parts by weight of alkyl (meth)acrylate, approximately 10-100 parts by weight of at least one higher primary alkyl (meth)acrylate containing at least 8 carbon atoms and 0-99 parts by weight of at least one comonomer chosen from the lower primary alkyl (meth)acrylates containing 1 to 6 carbon atoms and the dialkylaminoalkyl (meth)acrylates the alkyl groupings of which contain approximately 1 to 6 carbon atoms. The coating compositions can be used, depending on their Tg, as binder-dispersants for pigmented pastes in the paint and solvent ink industry; tacking polymers for pressure-sensitive adhesives in household adhesive articles, self-adhesive polyester foams, adhesive tapes; tacking polymers for formulating solvent glues for textile or plasticized PVC floor coverings, tacking polymers for contact adhesives of the double face application type for the building industry.
Patent EP-0460978-A1 (EP)
Inventor: POCHOLLE JEAN-PAUL
IPC: G02F1/017
Filed: 1991-04-23
Abstract: The invention relates to the construction of lasers. It is attempted to obtain a laser emitting at single frequency without using frequency selection means (filters, etc) which are necessary in certain types of laser with wide spectral bandwidth (lasers of vibronic type for example). It is also attempted to render the laser tunable by simple means. 
<??>To achieve this, the invention proposes to define a laser cavity in which one of the mirrors is not a conventional mirror but a mirror (MB) having an active function in the sense that it does not merely reflect light, but produces it itself, at a single wavelength. 
<??>The active mirror is preferably a Bragg reflector constructed from alternate layers, at least one of which is semiconducting; this layer accumulates electron-hole pairs in response to excitation by fluorescence photons. It re-emits photons at a wavelength determined by the forbidden bandwidth of the semiconductor. It is arranged to choose the layer compositions and thicknesses in such a way as to have coincidence between the re-emitted wavelength and a reflectivity peak of the Bragg mirror. The laser can be rendered tunable by appropriate positioning of a mirror region having a reflectivity peak at a desired frequency. 
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Patent EP-0465339-A1 (EP)
Inventor: COTTERET JEAN
IPC: A61K8/33
Filed: 1991-07-02
Abstract: Process for dyeing keratinous fibres, especially human keratinous fibres such as the hair, characterised in that there is applied on these fibres a composition containing, in a medium suitable for dyeing, at least one 4-hydroxyindole derivative of the formula: <IMAGE> in which R1 denotes hydrogen, C1-C4 alkyl; R2 and R3, which may be identical or different, denote hydrogen, C1-C4 alkyl, carboxyl or alkoxycarbonyl; X denotes hydrogen, C1-C4 alkyl, C1-C18 alkoxy, halogen, acetylamino; at least one of the groups X, R1, R2 and R3 being other than hydrogen;  as well as the salts of these compounds;  - at least one oxidation dye precursor;  - at least one oxidising agent; the pH of the composition applied on the fibres being below 7.
Patent EP-0484205-A1 (EP)
Inventor: ROBIN ROGER
IPC: B60H1/34
Filed: 1991-10-23
Abstract: The device of the invention comprises a cold-air inlet pipe (12) feeding the inlet and heating circuit (18, 20) to produce a current of cold or heated air intended to be introduced into the admission (36) of a distributing circuit (38) having air outlet pipes (40, 52 and 60) opening out in different areas of the passenger compartment. According to the invention, the device comprises a priority de-misting pipe (66) separated from the distributing circuit (38) and possessing an admission (67) communicating with the inlet and heating circuit and an outlet (68) opening out behind the windscreen. A shutter (70) is moved between a priority de-misting position in which it closes off the admission (36) to the distributing circuit and a normal-use position in which it closes off the admission (67) to the priority de-misting pipe (66). 
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Patent EP-0489651-A1 (EP)
Inventor: BEIGBEDER GERARD
IPC: G01P1/00
Filed: 1991-12-03
Abstract: Device intended to measure the rotational speed of a shaft of the type comprising a toothed wheel (1) driven in rotation by the shaft, a magnet (3) placed in the vicinity of the toothed wheel, characterised in that it comprises an optical fibre (6) comprising two ends (6-1, 6-3) and a central part (6-2), one of the ends (6-1) being linked to a light source (10), the other end (6-3) being linked to means of analysis of the light (11), and the central part (6-2) comprising one part at least situated in the magnetic field (8) produced by the magnet (3) and being subjected, in this part, to stresses generated by a magnetostrictive material (7). …<IMAGE>…
Patent EP-0465377-A1 (EP)
Inventor: LISSANDRIN MARIO
IPC: H01H33/56
Filed: 1991-06-07
Abstract: A high-voltage circuit breaker includes a first compartment with SF6 under pressure having stationary and movable contacts therein, and a second sealed compartment housing having an operating mechanism with a pneumatic jack actuated by the gas contained in the first compartment via closing and opening valves. The second sealed enclosure is at low pressure playing the role of expansion volume of the gas expelled from the jack at the end of travel of the piston. The gas pressure in the jack is controlled by means of a control device sensitive to the temperature variation of the gas under pressure in the first compartment.
Patent EP-0541881-A1 (EP)
Inventor: EL MARRY SAQR MAJED
IPC: G08B13/24
Filed: 1991-11-15
Abstract: An alarm apparatus comprises an oscillator circuit (20) which provides an oscillating current to an antenna (A) from where a location (1) to be surveyed is irradiated with electromagnetic waves of in the RF frequency range provided by the oscillator circuit (20). The oscillator and the antenna are slightly mismatched with respect to their resonance frequency so as to avoid the oscillation current to go into resonance. Reception in the antenna (A) of an in-phase reflection of the emitted wave results in a superposition of the currents of the emitted and the received waves and increases thus the RF oscillation current. This current is coupled through a capacitor (C6) to a switch circuit (30) such as to trigger an alarm through actuation of the switch circuit if the RF current exceeds a defined threshold. Due to the arrangement of a non linear resistance energy sink (I) in series with the oscillator circuit (20), the switch efficiency is considerably increased by rapid variation of the supply voltage of the oscillator circuit in response to a variation of the oscillator current due to the action of the non linear resistance of the energy sink (I).
Patent EP-0493327-A1 (EP)
Inventor: KOLLER HANS
IPC: B65G1/04
Filed: 1991-12-23
Abstract: The storage rack has, arranged one above the other in vertical columns (7a, 7b), a number of storage positions (3) for accommodating stock containers (5) and a lift (9) having a stock container platform (19) for transporting the stock containers (5) to the storage positions (3). The columns (7a, 7b) are arranged opposite one another in pairs. The stock container platform (19) of the lift is in each case arranged so as to be vertically displaceable between the two columns (7a/7b) of a column pair (1). For each column pair (1), there is a separate lift (9) having a stock container platform (19) which can only be displaced vertically, said lift having a shifting device for shifting the stock containers (5) horizontally which protrudes over the lift shaft (6) between the two columns (7a/7b) of each column pair (1). The end parts of the shifting device which protrude over the lift shaft (6) run on both sides along the two column sides.   By providing the one or more column pairs (1) with one lift (9) each, it is possible on the one hand for a simple structural design and an extremely trouble-free use of the storage rack to be obtained. Since, furthermore, the gripping means are always in the immediate vicinity of the stock containers (5) to be moved, an extremely rapid access to the latter is provided. <IMAGE>
Patent EP-0504210-A1 (EP)
Inventor: ZIRPS WILHELM
IPC: B60T8/48
Filed: 1990-12-04
Abstract: L'invention propose un système de réglage de la pression de freinage pour des dispositifs de freinage avec régulation anti-blocage et de glissement à l'entraînement, dans lequel est prévue au moins une chambre d'expansion (29) où se trouve un système de fermeture (31), entre les cylindres de freins de roue (9, 10) et la pompe de refoulement (16). En raison de ce système supplémentaire (31) de fermeture situé dans la chambre d'expansion (29), une soupape séparée n'est pas nécessaire pour le réglage de pression de freinage. Un gradient raide de force de fermeture est également obtenu à la sortie (29b) de la chambre d'expansion (29) par l'intermédiaire d'un siège de soupape (32) réduit par rapport à la surface du piston (30) se trouvant dans la chambre d'expansion (29), étant donné que de petites différences de pression ont pour conséquence de grandes différences de force de fermeture, de sorte que les pressions d'ouverture et de fermeture sont en conjonction étroite.
Patent EP-0462243-A1 (EP)
Inventor: PLACH HERBERT
IPC: C09K19/30
Filed: 1990-12-28
Abstract: L'invention concerne un affichage matriciel à cristaux liquides contenant: deux plaques support à plans parallèles qui forment, avec un cadre, une cellule; des éléments non linéaires intégrés pour commuter les éléments individuels des images sur les plaques support; et un mélange de cristaux liquides nématiques contenu dans la cellule et qui possède une anisotropie diélectrique positive, une résistivité spécifique élevée, une plage de phase nématique d'au moins 60 °C, une viscosité maximale à 20 °C de 30 mPa.s et une constante diélectrique moyenne epsilon au plus égal à 8. Ledit affichage est caractérisé en ce que le mélange de cristaux liquides comprend un ou plusieurs composés choisis parmi le groupe constitué par les formules 1a à 1g, où R signifie n-alkyle, n-oxaalkyle ou n-alkényle avec jusqu'à 9 atomes de carbone, et L est H ou F, de préférence H.
Patent EP-0517708-A1 (EP)
Inventor: PITTMAN EDDIE DARNELL
IPC: B32B9/04
Filed: 1990-12-28
Abstract: Procédé de fabrication d'un élément de revêtement composite revêtu de pierre, consistant à appliquer une natte fibreuse (5) imprégnée de résine à chacune des deux faces opposées d'une dalle en pierre (1) tandis que la résine est à l'état non polymérisé. On applique une couche de support (6) à chacune des surfaces exposées (3, 4) de la natte fibreuse (5). On polymérise la résine afin de lier chaque couche de support (6) à la surface en pierre, par l'intermédiaire de la natte fibreuse (5). On scie en deux la dalle de pierre le long d'un plan de coupe (9) sensiblement parallèle au deux surfaces opposées (3, 4) de la dalle de pierre (1), et à mi-chemin entre celles-ci, afin de laisser une mince couche de pierre fixée à chaque couche de support. On peut fabriquer les couches de support (6) in situ, par application à chaque surface exposée (3, 4) de la natte fibreuse (5), après qu'elles aient été fixées à la dalle de pierre (1), d'une couche de matériau (7) multicellulaire de poids léger, puis par application à la surface extérieure de la couche multicellulaire d'une peau extérieure de matériau (8).
Patent EP-0466908-A1 (EP)
Title: Method and apparatus for data interleave with pseudo-randomized resynchronization.
Inventor: LIN SHAW-YUEH
IPC: H04J3/06
Filed: 1991-02-04
Abstract: In formatting a digital data stream for interleaved recording with included resynchronization sequences inserted into the data stream, rather than recurrently recording the resynchronization sequences at the boundaries of the interleave blocks or recording many resynchronization sequences throughout the data, the present invention teaches staggered recording of the resynchronization sequences throughout the page of interleaved code words in a pseudo-random fashion. This staggering of the resynchronization sequences throughout the interleave blocks "randomizes" the errors due to tape drop outs so that errors are more uniformly distributed among the positions in the code words, and attendantly, are more likely to be correctable.
Patent EP-0518912-A1 (EP)
Title: Clearing or sedimentation tank.
Inventor: GLASER BERND
IPC: B01D21/24
Filed: 1991-03-06
Abstract: A clearing or sedimentation tank (18) has a discharge channel (12) for pure water. The wall of the channel in contact with the water in the tank has holes (16) through which pure water flows from the tank into the channel. The channel is connected to an outlet pipe (14). The channel and/or the outlet pipe are associated with retaining means (18, 19) which dam up the water in the channel to a level above the holes.
Patent EP-0524960-A1 (EP)
Inventor: KRAEMER HARTMUTH
IPC: F02M37/08
Filed: 1991-03-22
Abstract: L'unité d'alimentation en carburant depuis un réservoir jusqu'au moteur à combustion interne présente deux pompes à engrenage intérieur (13, 14) montées en série, dont l'une est la pompe de préalimentation (13) pour la pompe d'alimentation principale (14). Le débit de la pompe de préalimentation est un peu plus grand que celui de la pompe d'alimentation principale. Par l'intermédiaire d'un diaphragme d'étranglement (44) ou d'une soupape dans le retour vers le réservoir est engendrée, au moyen de la quantité excédentaire, une pression d'admission assurant une amenée de carburant exempte de bulles de gaz vers l'étage d'alimentation principal, et par conséquent un débit presque constant de l'étage d'alimentation principal.
Patent EP-0484539-A1 (EP)
Inventor: KAWAMURA HIDEAKI - NARAHARAMAC
IPC: G05B19/4103
Filed: 1991-04-26
Abstract: A cylinder interpolation system for machining a cylindrical surface of a cylindrical work. Tool diameter correction means (104) calculates an offset vector of a tool diameter with respect to a machining shape instructed on imaginary orthogonal coordinates and determines the center passage of a tool. Interpolation means (107) interpolates this center passage and outputs an interpolation pulse (PCyi) of an imaginary linear axis and an interpolation pulse (Pzi) of a cylinder axis. To inversely convert the imaginary orthogonal coordinates to the cylinder coordinates, the interpolation pulse (PCyi) is converted to a pulse (PCi) for rotating the axis of rotation by pulse conversion means (108). On the other hand, means (105) and means (109) calculate a corrective component (Vcy) at the beginning of a block and a synchronous corrective component (ΔVcy), respectively. These corrective components (Vcy, ΔVcy) are interpolated by means (106) and means (110) and added to the pulse (PCi) for rotating the axis of rotation. In this way, the tool cutting surface is controlled so that it exists always immediately above the center axis of rotation and the machined surface is vertical to the cylindrical surface of the work.
Patent EP-0534985-A1 (EP)
Inventor: CARMEIN DAVID E E
IPC: C02F9/00
Filed: 1991-04-01
Abstract: Système servant à purifier l'eau et comportant à la fois un filtre et un corps de matière biocide active pour purifier microbiologiquement l'eau biologiquement contaminée. Le système assure la production d'eau microbiologiquement purifiée durant la montée et la descente du plongeur et comporte une brosse pouvant être animée d'un mouvement alternatif à l'intérieur du système pour nettoyer le filtre.
Patent EP-0548096-A1 (EP)
Inventor: PAVIA ANDRE A
IPC: C09K23/00
Filed: 1991-08-08
Abstract: Nouveaux dérivés fluorés utiles en tant que tensio-actifs, au transport de médicaments ou de marqueurs, ou au ciblage des médicaments, et préparations contenant les dérivés et destinées à des applications médicales, cosmétiques et vétérinaires. Les dérivés répondent à la formule (I), dans laquelle RF est un radical fluoré, X est alkylène linéaire ou ramifié, R1 est H ou CH3, R2 représente un radical possédant au moins un groupe OH, R3 représente un radical dérivé d'un acide aminé ou d'un peptide, 1 n 50 et 0 m 200, 0,2 étant n/n+m 1. Ces dérivés peuvent s'utiliser en tant que précurseurs de médicaments, pour la formulation de préparations pharmaceutiques, cosmétiques et vétérinaires, ou en biologie ou en médecine, notamment dans des compositions servant de porteurs d'oxygène et d'autres gaz, d'agents de contraste, de substances à usage thérapeutique, ou de marqueurs.
Patent EP-0546001-A1 (EP)
Inventor: LAWTON PETER GEOFFREY
IPC: D04H18/00
Filed: 1991-08-28
Abstract: Procédé de fabrication de structures de matériaux fibreux profilés selon lequel une feuille de filaments continus (16a) est soumise à un aiguilletage, des segments (36, 38) sont coupés de la feuille et ces segments sont assemblés pour former un anneau, puis soumis à un mouvement rotatif sous une tête d'aiguilletage à mouvement alternatif (42). L'on continue à ajouter des segments pour former une pile de couches tout en maintenant l'aiguilletage, et on abaisse la base de la pile par rapport à la tête d'aiguilletage. Dans une étape finale, une ou plusieurs couches de segments (250, 252, 254) sont ajoutées au sommet de la pile et sont aiguilletées dans la pile sans que celle-ci soit abaissée. En outre, ces couches additionnelles sont de préférence entièrement composées de fibres coupées. Certaines ou la totalité des couches de segments se trouvant sous les couches finales peuvent elles-mêmes êtres composées d'un matériau à double couche comprenant un filament continu (16a) sur lequel est placée une bande de fibres coupées (15) avant que le matériau à double couche soit fabriqué par l'aiguilletage de la bande coupée aux filaments continus.
Patent EP-0503079-A1 (EP)
Inventor: NAKANISHI MICHIO
IPC: C07D401/12
Filed: 1991-09-30
Abstract: Racemic or enantiomeric pyridazinone-substituted ethynylphenyl derivative represented by general formula (I), pharmacologically acceptable salt thereof, and remedy for circulatory organ diseases, thrombosis and renal disease. In the said formula, R¹ represents hydrogen, C₁ to C₆ alkyl, C₁ to C₄ alkoxycarbonyl, substituted amino C₁ to C₆ alkyl, hydroxy C₁ to C₆ alkyl, or phenyl substituted with alkyl, alkoxy, nitro or halogen; R² represents hydrogen, C₁ to C₄ alkoxy or halogen; R³ represents C₁ to C₄ alkoxy, C₁ to C₆ alkylamino or C₁ to C₄ alkoxy C₁ to C₄ alkoxy; R⁴ represents C₁ to C₄ alkyl or amino; R⁵ represents hydrogen or C₁ to C₄ alkyl; R⁶ represents hydrogen or C₁ to C₄ alkyl; and R⁷ represents hydrogen or C₁ to C₄ alkyl.
Patent EP-0521352-A1 (EP)
Inventor: BUSS HINRICH
IPC: H01R43/20
Filed: 1992-06-19
Abstract: The invention relates to a process and a device for receiving elements (KE) from a conveyor belt (TB) and for delivering them to a body (ISK). In this case, the connections between the elements (KE) which are mounted on the conveyor belt (TB) are released and the elements (KE) are then inserted into a magazine (M), which is displaced in the provided manner and, after being filled, corresponding to the provided fitment pattern, with the elements (KE) is moved to an assembly tool (MW) which simultaneously grips all the elements (KE) deposited in the machine (M) and inserts them into the body (ISK). Using the process according to the invention, a plurality of elements (KE) are simultaneously inserted, by means of a robust assembly tool (MW), slowly and gently into a body (ISK). In consequence, despite high fitment rates, there are no incorrect fitments or damage which is consequential thereto to the assembly tool (MW) or to the fitted bodies (ISK). <IMAGE>
Patent EP-0535316-A1 (EP)
Inventor: BEILHARZ HELMUT DR
IPC: A61K35/10
Filed: 1992-07-09
Abstract: The antidandruff compositions contain low molecular weight ammonium or alkali metal humates with an average molecular weight of 1000 with a range of variation from 300 to 1500.
Patent EP-0531702-A1 (EP)
Inventor: KARMESWARAN VENKATARAMAN
IPC: C07D207/416
Filed: 1992-08-03
Abstract: There is provided a process for the manufacture of insecticidal, nematicidal and acaricidal 2-aryl-3-substituted-5-(trifluoromethyl)pyrrole compounds via the condensation of an N-(substituted benzyl)-2,2-2-trifluoroacetimidoyl chloride compound with an α-halo-α,β-unsaturated nitrile, ester or nitro compound.
Patent EP-0584388-A1 (EP)
Inventor: SIVARD AKE
IPC: A61N1/365
Filed: 1992-08-26
Abstract: In order to produce a signal corresponding to a patient's minute respiratory volume, there is filtered out of an impedance measurement signal recorded in the region of the patient's heart a signal component (S) which is correlated with breathing and whose zero-crossings (N) are detected and whose maximum values (X) are determined in absolute terms between in each case two successive zero-crossings (N) and are added during a prescribed time interval to a value corresponding to the minute-volume. <IMAGE>
Patent EP-0537701-A1 (EP)
Inventor: NETTELNBREKER HANS-JUERGEN
IPC: B29C48/405
Filed: 1992-10-14
Abstract: The invention relates to an apparatus for incorporating mineral filling and reinforcing materials into thermoplastic moulding materials in the form of an extruder having screws which are arranged in a barrel bore, rotate in a self-cleaning intermeshing manner and in the same direction, form, in the transport direction, a feed zone, a plasticating and mixing zone and, in addition to a homogenisation zone, a discharge zone, the plasticating and kneader-mixing region of the extruder screw being formed by blade elements (11, 12) and a downstream melt restrictor (14) ensuring a pressure build-up in the blade elements. Moulded bodies produced from the moulding compositions thus treated have no optical defects on their surfaces. <IMAGE>