baber/WOPTO huggingface dataset:
Patent EP-0244304-A1 (EP)
Inventor: VATUS JEAN
IPC: H01L29/47
Filed: 1987-04-22
Abstract: L'invention concerne un procédé de gravure sélective d'une couche superficielle, s'arrêtant de façon automatique à une couche sous-jacente. 
     Selon l'invention, la gravure sélective d'une première couche (3) d'un matériau contenant du gallium, par rapport à une deuxième couche (2) contenant de l'aluminium, est obtenue par gravure ionique réactive en présence d'un plasma de fréon pur C Cl₂ F₂. Aux faibles pressions (0,5 à 2,5 Pa), la gravure est anisotrope et permet de graver le recess de grille d'un transistor à effet de champ. A pression plus élevée (6 à 10 Pa), la gravure est isotrope et permet de sous-graver la première couche (3). 
     Application à la réalisation de transistors à effet de champ, en matériaux III-V, ayant de faibles résistances d'accès, R S  et R D .
Patent EP-0250295-A1 (EP)
Inventor: SEBILLEAU BERNARD FRANCIS
IPC: B65H75/22
Filed: 1987-06-10
Abstract: Cable reel comprising a circular cross-section cylindrical barrel (1) delimited on its ends by two circular flanges (2, 3) clamped against each other by braces, this barrel being composed of several elements (5), in the form of an arc of a circle, juxtaposed one with the other along generatrices of a circular cross-section cylinder in order to form together the barrel of the reel, the braces (4) passing through holes provided in the various components so as to assemble them in order to form the barrel and in order to assemble this barrel to the flanges, which reel is characterised in that the assembly of the components is obtained by open eyelets (6) disposed alternately in staggered positions on both sides opposite the component placed along the generatrices of the barrel, the wall of the component (5) extending over all or part of the zones (10) separating the eyelets (6) of one and the same side of the component, the eyelets of two opposed edges of the two adjacent components of the barrel being mounted on a brace connecting the two flanges. <IMAGE>
Patent EP-0262035-A1 (EP)
Inventor: CARDON CHRISTIAN
IPC: B61D7/02
Filed: 1987-09-18
Abstract: 1. Receptacle (1) comprising : a body (6) having an oblong horizontal section with a longitudinal axis (10) which, more particularly but not exclusively, in its essential part, has a general cylindrical shape with a horizontal axis, which is closed at its ends by dished caps which are, for example, substantially hemispherical, and at the base of which body (6) there is connected the lateral wall (13) of at least one funnel (2) which, to channel the product contained in the receptacle (1) to an outlet orifice (11) connected to a drainage conduct (12), has a flared shape of which the widest portion is situated at its upper portion while its narrowest portion is situated on the side of the outlet orifice (11), and fluidisation means (15) comprising a sieve (16) on which the product rests with its inherent weight and beneath which some means (17) blow in air traversing the sieve and conveying the products to the drainage conduit (12), the receptacle being characterized in that the funnel (2) has a horizontal section of oblong shape of which the large axis is parallel to the longitudinal axis (10) of the receptacle (1), in that the lateral wall of the funnel has, right round said funnel, an inclination which is at least substantially constant toward the outlet orifice and in that said lateral wall (13) of the funnel has : on the one hand, mutally spaced by a certain distance (X), two substantially semi-conical portions (18, 19) of inclination (A), of which the concavities face one another, and on the other hand, two plane walls (20, 21) having a width corresponding to the distance (X) between the substantially semi-conical portions whose extreme generatrices they join to produce the longitudinal sides of the oblong horizontal section of the funnel.
Patent EP-0271446-A1 (EP)
Inventor: RAVICHANDRAN RAMANATHAN
IPC: C09K15/30
Filed: 1987-12-04
Abstract: The novel compounds of formula (I)
      wherein R₁ is alkyl having 1 to 36 carbon atoms, cycloalkyl having 5 to 12 carbon atoms, phenyl which is unsubstituted or substituted by alkyl having 1 to 36 carbon atoms, naphthyl which is unsubsti­tuted or substituted by alkyl having 1 to 36 carbon atoms, or aralkyl having 7 to 9 carbon atoms which is unsubstituted or substituted by alkyl having 1 to 36 carbon atoms, R₂ is hydrogen or has one of the meanings given for R₁, n is 1 to 4, and 
when n is 1, T has one of the meanings given for R₁ or is
     , or T and R₂ together with the carbon atoms to which they are attached form a ring containing 5 to 12 carbon atoms, 
when n is 2, T is alkylene having 2 to 12 carbon atoms, or
      wherein m is 1 or 2 and R₃ is hydrogen, alkyl or alkoxy each having 1 to 4 carbon atoms, hydroxyl, halogen, cyano or nitro, or T is  
      or R₂ and T together with the carbon atoms to which they are attached form a 6-membered to 12-membered carbocyclic ring, 
when n is 3, T is
      and 
when n is 4, T is
      wherein R₄ is hydrogen or methyl and R₃ and m are as previously defined, are effective in stabilizing an organic material against oxidative, thermal and/or actinic degradation. 
     In addition to the novel compounds of formula (I), corresponding compounds with 
      wherein R₅ is alkyl or alkoxy each having 1 to 4 carbon atoms, hydroxyl, halogen, cyano or nitro, also provide effective stabilizing activity.
Patent EP-0263864-A1 (EP)
Inventor: SKINNER GORDON R B
IPC: A01N41/02
Filed: 1987-04-03
Abstract: Un procédé de traitement de surfaces, servant à détruire des micro-organismes tels que notamment des virus extracellulaires et intracellulaires, consiste à appliquer aux surfaces, par exemple par spray à aérosol, une solution liquide avec un rapport poids/volume de 0,2% de dodécyl sulfate de lithium et avec un rapport volume/volume d'au moins 0,2% d'un détergent non-ionique dissout dans un alcool éthylique. Ledit procédé est efficace contre une large gamme d'organismes tels que champignons, protozoaires, chlamydés, bactéries et virus, y compris le virus de l'herpès simplex de type 2.
Patent EP-0269654-A1 (EP)
Inventor: NELSON ROBERT E
IPC: H02N6/00
Filed: 1987-02-26
Abstract: Un système de conversion d'énergie thermophotovoltaïque comprend une source d'énergie thermique (12) et un émetteur à bande étroite (26) placé à distance et optiquement isolé de la source d'énergie thermique. Le transfert de l'énergie thermique s'effectue entre la source d'énergie thermique et l'émetteur à l'aide d'un mécanisme non-radiatif, tel qu'un passage de courant fluide à boucle fermée (34, 36), reliant entre eux la source d'énergie thermique et l'émetteur à bande étroite (26). Un réseau de cellules photoélectriques (28) est optiquement couplé à l'émetteur à bande étroite (26), afin de produire une puissance électrique de sortie en réponse au rayonnement provenant de l'émetteur à bande étroite (26).
Patent EP-0264429-A1 (EP)
Inventor: SIH CHARLES J
IPC: C12P17/18
Filed: 1987-04-02
Abstract: Procédé de résolution d'esters de l'acide 1,2-dihydro-3H-pyrrolo[1,2a]pyrrole-1-carboxylique racémiques par hydrolyse énantiospécifique au moyen de lipases extracellulaires d'origine microbienne (EC 3.1.1.3) ou de protéases microbiennes extracellulaires.
Patent EP-0345254-A1 (EP)
Inventor: JONES DAVID JOHN
IPC: E04G21/18
Filed: 1987-11-03
Abstract: L'outil de profilage qui est destiné à servir de référence à un coin interne ou externe à angle droit ou à angle prédéterminé non perpendiculaire dans une construction en briques, comprend une plaque (13) destinée à être fixée généralement à une rangée horizontale de la construction en briques (14) et un poteau de repère (11) conçu pour permettre le positionnement d'une rangée supérieure de la construction en briques. Le poteau (11) est relié de façon pivotante à la plaque (13) et est conçu pour être réglé selon un angle par rapport à l'horizontale tel que la rangée supérieure de la construction en briques forme un angle prédéterminé avec l'horizontale.
Patent EP-0385974-A1 (EP)
Inventor: MEHRGARDT SOENKE
IPC: H04N5/60
Filed: 1987-11-06
Abstract: Un circuit adapté à tous les standards de transmission sonore de télévision, y compris le standard dit ''NICAM'', comprend un filtre passe-bas (af) analogique anti-crénelage alimenté par le mélange de signaux (va) audio et vidéo analogiques et branché en amont du convertisseur A/N (ad). Son signal de sortie est débarrassé du signal vidéo par la structure de filtrage (bp, dz, tp). Le signal audionumérique (ds) est transmis au diviseur de phase (ps) avec une sortie de 0° (a0) et une sortie de 90° (a9), les deux signaux de sortie du diviseur de phase (ps) étant transmis au discriminateur de phase (pd), dont la sortie (aa) donne le signal audio à amplitude démodulée. La sortie de phase (ap) alimente le décodeur partiel DQPSK du détecteur ''NICAM'' (nd) et fournit le signal audio à fréquence modulée par l'intermédiaire de l'étage de différenciation (dt).
Patent EP-0283730-A1 (EP)
Inventor: BRIX JOACHIM DIPL-ING
IPC: B63B41/00
Filed: 1988-02-20
Abstract: By means of a diaphragm (20) arranged its wall surface, the aerodynamic body (100) can be converted into an aerodynamic body with a changed boundary and enlarged surface for producing local excess velocities and therefore controllable vacuum zones by active volumetric flow of a fluid into the intermediate space (25) between the aerodynamic body and the diaphragm (20). <IMAGE>
Patent EP-0281133-A1 (EP)
Inventor: SAWADA KAZUO
IPC: H01B12/06
Filed: 1988-03-03
Abstract: A ceramic type superconductive layer (2) is formed on the outer peripheral surface of an optical fiber (1), and a stabilizing layer (3) is formed so that it contacts the outer peripheral surface of the superconductive layer (3). The diameter of the optical fiber is, for example, not more than 100 µm. The superconductive layer may be formed with a spirally extending groove (7) which divides the superconductive layer.
Patent EP-0289789-A1 (EP)
Inventor: YOKOSUKA TAKEJIROU
IPC: G01N35/00
Filed: 1988-04-05
Abstract: An automatic analysis apparatus is disclosed which provides for various analytical operations in clinical diagnosis and experiments including measuring the changes in light absorbance of a large number of samples mixed with different reagents in a progressive manner, biochemi­cal, electrolytical, fluorescence, and immunological ana­lysis and EIA analysis of samples in bead solid phase. A plurality of samples are maintained, together with diluents and emergency samples, in an ordered sequence on a rotatable sample table which is rotated by drive means in a stepping manner to move the samples progres­sively to a predetermined suction position at which a sample pipetter picks up a measured amount of sample and dispenses it to one of a plurality of reaction containers that are arranged in an ordered sequence on a reaction table capable of rotations, preferably about said sample table. At least a pair of reagent tables are provided, each carrying a plurality of reagents different in kind from each other, selected for various analyses to be performed. A first and a second reagent pipetter are provided and operated to pick up a measured amount of a particular reagent and mix it with any selected sample in the reaction containers. Each sample and reagent mixture may be scanned to measure the rate of light absorbance during a period of time as the reaction containers are rotated on the reaction table by a photometer system including a rotating frame carrying thereon filters for different wavelengths through which the optical beam from a light source is passed to traverse the reaction con­tainer to be sensed by an optical sensor as the reaction container is rotated. Each reagent pipetting tube is provided with an agitator means which is operated, after each dispensing operation of the pipetting tube into the reaction container, to stir the mixture in the reaction container into a homogenous state for proper reaction. At least one of the reagent tables is divided into a room   temperature compartment where the reagents are kept at room temperature and a cooling compartment connected to cooling means through pipings in which the reagents are kept at a desired low temperature. The room temperature compartment may comprise a heating element mounted at the bottom of the compartment and connected to a power source through a circuit extended in the reagent table. A clean­ing system is incorporated which, while suspending the reagent pipetter of its reagent dispensing operation dur­ing the round of analytical operation at a predetermined interval, causes its reagent pipetting means to suck up a measured amount of a detergent solution from one of a plurality of detergent containers arranged in order on the reagent table and discharge the sucked-up fluid into an emply reaction vessel mounted on the reaction table so that the residue of reagents that might have remained adhered to the tubes may be removed.
Patent EP-0290779-A1 (EP)
Inventor: EHRHARDT JOSEF
IPC: F01D5/28
Filed: 1988-04-06
Abstract: A process for embedding whiskers in a metallic matrix in order to produce fibre-reinforced components, even those of complicated shape, in one operation.
Patent EP-0286059-A1 (EP)
Inventor: TAKAHASHI HIDEYUKI
IPC: C12R1/425
Filed: 1988-04-06
Abstract: A process for preparing optically active (R)-3-­chloro-1,2-propanediol, which comprises subjecting (R,S)-­3-chloro-1,2-propanediol to the reaction of a microorganism belonging to genus  Serratia  in a reaction mixture, and then collecting the residual (R)-3-chloro-­1,2-propanediol. According to the process of the present invention, (R)-3-chloro-1,2-propanediol can be efficiently prepared starting from low cost (R,S)-3-­chloro-1,2-propanediol.
Patent EP-0298257-A1 (EP)
Inventor: SEGURA BADIA MARCELO
IPC: A61M5/162
Filed: 1988-06-03
Abstract: Connection for catheters, perfusion units (2) and flasks (3) of liquids to be perfused, of the kind used when parenterally administering liquids, principally characterized in that it comprises a chamber containing an antimicrobian product between the components to be connected, that is to say, between the outlet of the recipient (3) containing the liquid to be perfused and the perfusion unit (2), or between this latter and the entrance to the catheter, the inlet needle (15) of which traverses an outlet wall (19), the interior of the chamber holding the antimicrobian liquid and an entry wall (20) directly associated to the recipient (3) for the liquid to be perfused.
Patent EP-0301260-A1 (EP)
Inventor: KOHN ERHARD DR
IPC: H01L21/338
Filed: 1988-06-29
Abstract: A modulation-doped field effect transistor includes an undoped semiconductor layer (104) and an arrangement (106, 108) for supplying charge carriers into a region of the semiconductor layer (104) adjacent one side. An arrangement (102) is provided for locally modulating the charge carrier density in another region adjacent the other side of the semiconductor layer (104) in a repeating pattern of alternations so as to inhibit current flow in the direction of the alternations.
Patent EP-0300349-A1 (EP)
Inventor: CASEY JEREMIAH PATRICK
IPC: C08G18/18
Filed: 1988-07-13
Abstract: The present invention relates a process for the production of polyurethanes wherein a tertiary amine functionality is incorporated into the side chain of a diaminobenzoate, to form a non-fugitive catalyst polyurethane chain extender. These non-fugitive chain extenders are polyurethane catalysts that provide adequate cure without residual odor and safety hazards associated with the more traditional tertiary amine catalysts. When reacted with the isocyanate reactive group the non-tertiary amine portion of the chain extender is bound to the polymeric network. Diffusion of the catalyst species from the polyurethane has been prevented, thus negating odor and toxicity as a problem. The diaminobenzoate provides enhanced polyurethane physical properties.
Patent EP-0323550-A1 (EP)
Inventor: VANZO AUGUSTO
IPC: G01B5/00
Filed: 1988-10-08
Abstract: The present invention relates to an optical rule with means for fixing to a fixed structure which has the peculiarity of comprising an elongated profiled body (1) which defines, in transverse cross section, a U-shaped configuration. At least one dovetail coupling element (10) is provided on the outer surface of said profiled body for its removable coupling to means (40) for fixing to a fixed structure.
Patent EP-0365703-A1 (EP)
Inventor: TANAKA KOHYA
IPC: A01D34/90
Filed: 1988-10-26
Abstract: A hand-held machine such as a mower equipped with an engine as the driving source wherein the drive shaft pipe (10) is formed by telescopically extendable pipe members provided with a fixing means (22), and the rotational force of a driving mechanism is transmitted to the operational means (12, 28) via the drive shaft (16a) having a circular section, at least one one-way clutch (18) and the drive shaft (16b) on the side of the operational means to thereby minimize the size of the device conveniently for transportation/storage, improve the work efficiency, and secure the safety of the operator.
Patent EP-0290091-A1 (EP)
Inventor: DOLFSMA HENDRIK
IPC: F16C23/08
Filed: 1988-05-02
Abstract: To avoid break-downs by excess feeding of a lubricant leading to unacceptable rise in temperature in bearing housings (1) it is suggested to apply opposite the feeding device (16) in an annular space or chamber (8) a trough-like receptacle (18) suitable to receive an excess of lubricant. The receptacle (18) consists of two parts (19, 19′) that can be pushed to each other from opposite sides around the shaft (2) in said chamber (8) to form said receptacle (18).
Patent EP-0294907-A1 (EP)
Inventor: CURTZE JURGEN
IPC: C07C233/65
Filed: 1988-06-09
Abstract: The invention provides a process for the preparation 3,3-diaryl acrylic acid amides of the formula
      in which A, B and Q are as defined in the specification, characterised by condensing a compound of formula
      with a compound of formula 
    ZCH₂-CO-Q      (III) 
in which Z represents a hydrogen or halogen atom, and, if an intermediate compound is formed of formula
      dehydrating the intermediate compound.
Patent EP-0287281-A1 (EP)
Inventor: YASUKAWA TUKUJI
IPC: A23J7/00
Filed: 1988-04-07
Abstract: A pan-releasing oil composition comprises fats and oils and 0.1 to 10 percent by weight, based on the entire composition, of a phospholipid mixture in which the sum total of contents of phosphatidic acid and/or a salt of phosphatidic acid and lysophosphatidic acid and/or a salt of lysophosphatidic acid ranges from 15 to 100 percent by weight based on the weight of the total phospholipids.
Patent EP-0290153-A1 (EP)
Inventor: CAMPBELL SIMON FRAZER DR
IPC: C07D471/04
Filed: 1988-04-15
Abstract: Novel substituted quinolones of the formula:
      where Het represents a heterobicyclic group having a 6-membered ring fused to a further 5- or 6-membered ring, containing 1 to 3 N-atoms in the non-fused positions, R is H or alkyl, and R¹ and R² are each H or alkyl, are force-selective cardiac stimulants.
Patent EP-0294073-A1 (EP)
Inventor: SANKEY JOHN PHILLIP
IPC: C07C303/32
Filed: 1988-05-24
Abstract: Hitherto processes proposed in recent years for preparing esters of phenol sulphonate salts by reaction between a carboxylic acid chloride and a phenol sulphonate salt place considerable emphasis upon dehydrating the reactants before they are brought into contact in an organic solvent reaction medium. 
     The present invention avoids the problems of employing non-aqueous solvents by carrying out the reaction under aqueous conditions but with controlled alkalinity and water content, especially at a base to phenol sulphonate mole ratio of from 1.3:1 to 1.6:1 and a total water to phenol sulphonate (as the anhydrous material) of not more than 4.5:1. The reaction advantageously employs in preference only a small molar excess of carboxylic acid chloride over the phenol sulphonate and preferably has a reaction temperature controlled to below 30°C, especially 5 to 20°C. 
     In a further improvement to the process, the difficulty of enhanced contamination with benzoic acid in the products can be ameliorated by employing a small but effective amount of a surfactant, especially an alcohol ethoxylate, in the reaction mixture. 
     The process is especially well suited to making sodium benzoyl oxybenzene sulphonate from sodium phenol sulphonate dihydrate and benzoyl chloride.
Patent EP-0300642-A1 (EP)
Inventor: DUNN KENNETH
IPC: A01D34/73
Filed: 1988-07-07
Abstract: A rotary lawn mower comprises a hood having a grass collection opening, a blade rotatable within the hood, and a drive unit operatively coupled to the blade, the blade including two or more arms each having a leading edge for cutting grass and an upturned trailing edge portion for generating an updraught inside the hood. The radially outer extremity (22) of each upturned portion (20) is displaced inwardly relative to the radially outer extremity (24) of the trailing edge (18) of the respective arm (10, 12) so as to form a discontinuity with the said trailing edge (18).
Patent EP-0317195-A1 (EP)
Inventor: ANGELL CYRIL NELSON EDWARD
IPC: A62B18/08
Filed: 1988-11-11
Abstract: To provide a protective layer (17) outside the eyepiece (15) of a respirator having e.g. thermal insulation effects a mount (21) of the layer seals to a mount (7) of the window (6) of the eyepiece continuously, to enclose a volume between the window (6) and layer (17).
Patent EP-0279746-A1 (EP)
Title: Panneau à plasma à quatre électrodes par point élémentaire d'image, et procédé de commande d'un tel panneau à plasma
Inventor: GAY MICHEL
IPC: H01J11/12
Filed: 1988-02-17
Abstract: La présente invention concerne les panneaux à plasma de type alternatif. Chaque point élémentaire d'image est défini par trois électrodes parallèles et coplanaires (G1, D1, X1, G2, D2, X2...) et par une électrode (Y1, Y2...) perpendiculaire aux trois autres et séparée des trois autres au moins par une couche diélectrique. Deux des trois électrodes parallèles (G1, D1, G2, D2) sont connectées à des circuits fournissant en fonctionnement les signaux d'entretien à chaque point élémentaire d'image. L'électrode (Y1, Y2) perpendiculaire aux trois autres et celle (X1, X2) des trois électrodes parallèles entre elles qui n'est pas connectée à un circuit d'entretien, sont connectées à des circuits fournissant en fonctionnement les signaux d'adressage à chaque point élémentaire d'image (A1 à A8). Les électrodes (G1, D1, G2, D2...) qui sont connectées aux circuits d'entretien constituent deux réseaux d'électrodes (D, G) reliés à deux circuits d'entretien (E1, E2).
Patent EP-0298945-A1 (EP)
Inventor: WITTAMER ROGER
IPC: B63B7/08
Filed: 1988-07-05
Abstract: The invention relates to a foldable boat made from rigid materials, the hull of which is constructed originally from at least one rectangular board (1) forming the constituent elements (1') and (1'') and having at least one longitudinal centre folding line (2) situated, in the use position, on the inside of the said board and at one end forming the bow, on either side of the said folding line, two curved cut-outs (3) forming the bow after assembly of the adjacent edges of the said cut-out, whilst at the opposite end of the same folding line the stern of the boat is made by folding up on themselves elements of the rear end of the abovementioned board. <IMAGE>