baber/WOPTO huggingface dataset:
Patent EP-0407691-A1 (EP)
Inventor: OHMS FRANZ DIPL-ING
IPC: H02M3/337
Filed: 1990-03-30
Abstract: In order to limit the current in push-pull DC-DC converters, series regulators of the Buck type are normally connected upstream, or pulse-width regulation is carried out with voltage or current feedback. In the case of the invention, the input current of the push-pull DC-DC converter is detected (SW1, SW2) and integrated (CI) per switching cycle. Together with a reference signal (Usz, Uc), a control signal for a pulse-frequency modulator (PFM) is formed from the integration. 
<??>The arithmetic mean of the output current of the push-pull DC-DC converter can be kept constant without additional power elements. Operation with a switching regulator of the boost type as a preregulator is possible without problems. 
<IMAGE>
Patent EP-0446401-A1 (EP)
Inventor: SU CHENG-YUAN
IPC: B05B11/00
Filed: 1990-04-09
Abstract: There is disclosed a moveable valve assembly for a liquid atomizer, which assembly comprises a piston body (B) having an exhaust hole therein and the moveable valve body (A) which is receivable within the piston body (B). The moveable valve body (A) has an upper rod portion (A1) and a lower hollow sleeve portion (A2) and the assembly further comprises a spring (A22) for urging the valve body (A) toward the piston body (B) in a manner so as to engage the valve head with the exhaust hole. In one embodiment the lower hollow sleeve (A2) has a wider portion around the exterior thereof which wider portion has an inclined lower face and an upper face having a plurality of annual projections which are engageable with corresponding annual recesses located on a lower face of the piston body.
Patent EP-0416205-A1 (EP)
Inventor: FELDINGER MARTIN DR
IPC: F02M9/14
Filed: 1990-04-28
Abstract: The invention relates to a fuel-air mixing device for internal combustion engines with a rotationally symmetrical nozzle body (2) which, together with a rotationally symmetrical throttle body (7) displaceable inside it, forms a convergent-divergent nozzle which opens out into an intake pipe of the internal combustion engine, a fuel-air gap (17) rotating about the convergent-divergent nozzle with a rotating slit opening (18) opening into the nozzle and being connected to a fuel feed (11) and an air feed (19), so that fuel from the slit opening mixed with air is injected into the nozzle approximately transversely to the direction of the main air mass flow (L). It is the object of the present invention to develop a device of this type so that it ensures a uniform distribution of the fuel on the circumference of the nozzle free of any malfunction and essentially without any heating. To this end it is proposed according to the invention that the fuel feed be designed as feed ducts (11) running radially. <IMAGE>
Patent EP-0409092-A1 (EP)
Inventor: AKESAKA TOSHIO
IPC: E21D9/06
Filed: 1990-07-12
Abstract: A direction correcting device for a shield tunnelling machine having a shield body (12) provided with a head portion (14) and a tail portion (16) following the head portion is adapted to correct the direction of the head portion relative to the tail portion. The device comprises three jacks (38,40,42) respectively having two connecting portions relatively displaced in the axial direction of the tail portion, and a connecting body (36) for interconnecting the head portion and the tail portion so as to permit the head portion and the tail portion to swing, while preventing the head portion and the tail portion from relatively displacing in the axial direction of the tail portion. Each of the jacks is connected at one connecting portion to the head portion, while being connected at the other connecting portion to the tail portion, and the jacks and the connecting body are disposed around the axis of the tail portion at angular intervals.
Patent EP-0429754-A1 (EP)
Inventor: DOERRIE HORST
IPC: H01Q13/10
Filed: 1990-07-14
Abstract: Known vehicle antennas which consist of an elongated slot in an electrically conductive wall of the vehicle, have the disadvantage that their horizontal polar diagram is asymmetrical. The object is to provide a vehicle antennae with a horizontal polar diagram which is as omnidirectional as possible. To this end, the vehicle antenna consists of two slots (11, 12) in a horizontal wall (10) of the vehicle. The slots are arranged in an L-shape or a T-shape and are at a distance (a) from one anther. The supply points (15, 16) to the two slots are connected to one another by means of a coaxial cable piece (14) from which a coaxial antenna cable (19) branches off. <IMAGE>
Patent EP-0469166-A1 (EP)
Inventor: IDE ISAMU
IPC: C08L61/10
Filed: 1990-07-31
Abstract: An electromagnetic wave shielding material comprises a composite carbon-resin compound obtained by reacting to proceed polymerization of a resin forming material with carbon powder intermixed therewith. The resulting compound has carbon powder substantially uniformly dispersed in the resin and exhibit superior electromagnetic wave shielding effect, in addition to good fire resistance. The resin may be phenol, melamine, furan or the like, and the carbon powder is preferred to be incorporated at a content of not less than 40% of the total weight.
Patent EP-0423571-A1 (EP)
Title: Branched copolymers
Inventor: BENDER DIETMAR DR
IPC: C08F8/00
Filed: 1990-10-06
Abstract: Star-type branched copolymer of the general formula [A-]kX, in which A represents the monovalent radical of a homopolymer, of a block copolymer or of a random copolymer of a conjugated diene and/or of a vinylaromatic hydrocarbon, k indicates a number between 1 and 10 and X denotes the k-valent radical of a coupling centre formed by coupling of a hexatriene, and hydrogenation product thereof.
Patent EP-0424929-A1 (EP)
Inventor: NATSUGARI HIDEAKI
IPC: C07D405/06
Filed: 1990-10-25
Abstract: A compound of the formula (I):
     wherein X is -CH 2 -CH 2 - or -CH=CH-,
     Y is
       
         Z is an oxygen or sulfur atom,   R 1  and R 2  are independently a hydrogen atom, an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group and ring A is an optionally substituted 6-membered homocyclic ring,   or its ester or salt which is useful as an inhibitory agent for the biosynthesis of the cholesterol.
Patent EP-0485650-A1 (EP)
Title: Schutzanzug
Inventor: BACHOR EDITH
IPC: A41D13/00
Filed: 1990-11-13
Abstract: Es wird ein Schutzanzug (1) aus zwei Lagen eines bahnförmigen Flächenmaterials, insbesondere aus Folien- oder Vliesmaterial, die an den beiden Längskanten (5, 6) und höchstens einer Querkante miteinander verbunden sind, angegeben, mit einer von der Querkante ausgehenden ersten Trennfuge (9a, 9b) die von einer Naht (7a, 7b) umgeben ist, die zusammen mit den Längskanten (5, 6) zwei schlauchartige Abschnitte (3, 4) begrenzt. Bei einem derartigen Schutzanzug soll bei einfacher Handhabung der Tragekomfort erhöht werden. Dazu ist die erste Trennfuge (9a, 9b) so angeordnet, daß sie zusammen mit der Querkante einen sich im wesentlichen in Längsrichtung erstreckenden Bahnbereich (8) begrenzt, der mindestens eine im wesentlichen in Längsrichtung verlaufende zweite Trennfuge (10) aufweist. <IMAGE>
Patent EP-0456908-A1 (EP)
Inventor: REICHERT GUENTHER DR
IPC: C23C18/30
Filed: 1990-12-21
Abstract: In order to activate the surfaces of plastics for currentless metallisation thereof while avoiding environmental stress cracking, formulations containing an organometallic activator, a filler, a specific mixture of organic solvents and a PU elastomer are highly suitable. 
<??>The plastic parts activated in this way are, after metallisation, preferably employed for screening electromagnetic waves.
Patent EP-0429114-A1 (EP)
Inventor: HUDSON JOHN CLAYTON
IPC: C08K5/44
Filed: 1990-11-07
Abstract: An accelerator composition and a rubber compounding composition in which a rubber is blended with a combination of three accelerators and sulfur for curing the rubber while mini­mizing the formation of iridescent sheen. The combination of accelerators included a thiolated morpholine, a dithiocarbamate and a benzothiazole.
Patent EP-0379370-A1 (EP)
Inventor: VARNEY BRIAN ANTHONY C O PARKH
IPC: A47H23/04
Filed: 1990-01-18
Abstract: A swag (10) for decorative use in curtaining is made using a template (11) which may be of rigid sheet mate­rial and formed by two side edges (14), each bearing deep cut-outs (15, 16...) and projections (17). The side edges (14) taper outwardly from top to bottom and their sepa­ration, but not their inclination, can be adjusted using an adjustable slide (22) having a scale (24).
Patent EP-0381373-A1 (EP)
Inventor: SHEEHAN BRENDAN THOMAS
IPC: G01C9/32
Filed: 1990-01-25
Abstract: An orientation testing device of the kind known as a "spirit level" (10) which comprises an elongate body (15) having at least one linear edge or planar face (11,12) and, mounted in an aperture (14,16) in the body(15), a closed generally tubular elongate translucent phial (17,18) that is partly filled with liquid to provide a gas (e.g. air) bubble (19,20) which by its position within the elongate phial is indicative of the orientation of the said linear edge or planar face (11,12). The elongate body (15) comprises a chamber (25) housing illumination means (24; 27,28,23,26,29,30) for illuminating the elongate phial. 
     The provision of the illumination means (24; 27, 28, 23, 26, 29, 30) enables the phial and its gas bubble to be easily seen, especially when used in dark areas, for example in roofed-in partly-built buildings.
Patent EP-0400870-A1 (EP)
Inventor: GUTIERREZ ANTONIO
IPC: C10L1/24
Filed: 1990-05-22
Abstract: Composition of matter useful as a multifunctional viscosity index improver for lubricating oils comprising reaction product of:
     (i) (a) copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains at least about 57 weight percent of said copolymer chain and contains at least about 57 weight percent ethylene, wherein said low crystalliity segment contains not greater than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of  M   W /  M   n  of less than 2 and a ratio of M  z / M of less than 1.8 and wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprisig at least 5 weight percent of said chain, differ incomposition form one antoher by at least 7 weight percent ethylene, said copolymer grafted with (b) ethylenically monounsaturated carboxylic acid material having 1 to 2 carboxylic acid groups or anhydride group to form grafted ethylene copolymer; and   (ii) at least one polyamine containing one primary amino group and from 1 to about 6 secondary amino groups.
Patent EP-0405796-A1 (EP)
Inventor: TORKELSON DELBERT W
IPC: F02K1/08
Filed: 1990-06-14
Abstract: The invention is a noise suppression system for a jet engine. A plug (44) is slidable on a plug support (34) within a shroud (42), where the plug support (34) and shroud (42) are attached to the aft end (14) of the engine. The shroud (42) tapers to an apertured rear end and has a series of circumferentially spaced openings (50) with doors (52). When the plug (34) is forward, the area is increased between the plug (34) and shroud (42), through which air must pass; and the doors (52) are open. The shroud (42) has an acoustical lining, and a shaped mixing nozzle (38) within it. There is a nose cowl (20) and bullet (30), with respective inner and outer surfaces (28, 32) acoustically lined, attached to the front (12) of the engine.
Patent EP-0432927-A1 (EP)
Inventor: BETTINELLI MAURICE DOMINIQUE
IPC: A24D1/02
Filed: 1990-11-23
Abstract: A cigarette exhibiting reduced levels of sidestream smoke emission comprises a tobacco rod 14 wrapped in an inner wrapper 16 of reconstituted tobacco rod and an outer wrapper 18 of paper containing from 0 to 2% Potassium citrate. Preferably the cigarette includes filter tip 12.
Patent EP-0434290-A1 (EP)
Inventor: BERNARD FRANCIS SELWYN
IPC: H04N5/14
Filed: 1990-12-12
Abstract: A detector for detecting motion in an image represented by a video signal includes delay means (40-52) for concurrently providing lines of signal from five consecutive fields (A-E). Sums (54) of signals (A3,B2) from first and second fields are subtracted (56) from sums (58) of signals (C3,D2) from third and fourth fields to generate first motion indicators (R2,R1). Differences (62) of signals (A3,B3) from the first and second fields are subtracted (64) from differences (66) of signals (C3,D3) from the third and fourth fields to generate second motion indicators (R4,R5). Differences (70) of signals (A3,E3) from the first and fifth fields are generated to form third motion indicators (R7,R6,R5). The first, second and third motion indicators are compared (76) and the largest is provided as a motion signal which is subsequently limited, spread and scaled. Signals used in forming the motion indicators are selected to substantially reject any adverse influence of the chrominance subcarrier.
Patent EP-0437978-A1 (EP)
Inventor: BAKERMANS JOHANNES CORNELIS WI
IPC: B21D28/14
Filed: 1990-12-28
Abstract: A punch assembly (4) of a stamping and forming machine has a separate sub-assembly (22) which is removably secured to the ram (20) of the punch assembly (4). The sub-assembly (22) comprises a punch holder (36,38), a stripper plate (40), and at least one punch (46) The stripper plate (40) is coupled to the punch holder (36,38) by a lost motion connection and the punch holder (36,38) is secured to the punch ram (20) by fasteners. The fasteners are accessible through access openings (90) which extend into the facial surface (54) of the stripper plate (40). The practice of the invention permits the use of only one ram (20) with a plurality of sub-assemblies (22) and thereby reduces tooling costs.
Patent EP-0394139-A1 (EP)
Inventor: LECOINTE SERGE
IPC: A62B9/04
Filed: 1990-04-20
Abstract: The application relates to an intermediate connector (1) for a breathing apparatus end-piece, which is intended to permit connection between a snap-on end-piece (3), comprising a sensor (31) movable in parallel with the axis (5) of the end-piece (3), and a first screw socket (4). It comprises a body (11) provided at one of its ends with a snap-on socket (12) complementing that of the end-piece (3), and provided at the other end with a second screw socket (13) intended to cooperate with the first screw socket (4). It comprises, in addition, an inner ring (14) movable in translation parallel to the axis (5) of the connector (1) between two end positions, the sensor (31) being activated by the inner ring (14) only when the connection is complete and correct. <IMAGE>
Patent EP-0404656-A1 (EP)
Inventor: DURINCK RENE
IPC: B02C4/02
Filed: 1990-06-19
Abstract: The subject of the invention is a method for fine pulverising of minerals according to the main patent and a cylinder pulveriser for the employment of this method. …<??>In order to reduce the formation of agglomerates and prevent the circumferential and/or lateral leakage under pressure of the material to be pulverised, it is proposed to close off the space delimited by the cylinders (10, 12) at its two extremities below the plane (X-X) containing the axes of the cylinders, by cheeks (24, 30) which are fixed to or integral with one of the cylinders.
Patent EP-0416983-A1 (EP)
Inventor: BURNOUF-RADOSEVICH MIRYANA
IPC: C07K14/755
Filed: 1990-08-30
Abstract: The invention relates to a process for the preparation of a concentrate of factor VIII-von Willebrand factor complex having high specific activity from whole plasma (not cryoprecipitate). The process comprises a prepurification by a double treatment with barium chloride and aluminium hydroxide. The process then comprises a purification by chromatography on an anion exchange resin of the DEAE-Fractogel type. The process comprises a step of viral inactivation by a solvent/detergent treatment. The process also enables fibrinogen, albumin, immunoglobulins, antithrombin III, fibronectin and prothrombin complex to be recovered from the same plasma. The various concentrates obtained by the process of the invention are intended, in particular, for therapeutic use.
Patent EP-0448636-A1 (EP)
Inventor: PARISH HARLIE A
IPC: A61K31/23
Filed: 1989-12-13
Abstract: La présente invention se rapporte à l'utilisation dermatologique de rétinoïdes non irritants, tels que les esters et les amides d'acide 13-cis-rétinoïque et 13-trans-rétinoïque, pour obtenir la réduction et la régression du photovieillissement et du cancer de la peau. Les rétinoïdes sont représentés par les formules (I) et (II), où R représente (a), (b), (c), (d), (e), (f), (g), (h), -CHR''2, (i), (j), (k), (l), (m) ou (n); où X représente -H, -F, -Cl, -Br, -I, -OH, -OR, -OR', (o), (p), (q), -CN, -NO2, -NH2, -NHR' ou -NR'2; où n représente un nombre compris entre 1 et 5; où R' représente H ou n'importe lequel des alkyles inférieurs allant de C1 à C6; où R'' représente (r), -OR', (p) ou -R'; où chaque R''' représente R' ou la colonne vertébrale d'hydrocarbure d'acides gras; et en outre, où au moins deux groupes R', R'' ou R''' sont fixés au même carbone ou au même azote, chaque R', R'' ou R''' pouvant être identiques ou différents par rapport aux autres groupes R', R'' ou R''' fixés à ce carbone ou à cet azote.
Patent EP-0402487-A1 (EP)
Inventor: SHIMOYAMA SUSUMU
IPC: D06P1/34
Filed: 1990-01-04
Abstract: Une nouvelle matière de noircissement peut être produite en traitant du chitosan avec la matière colorante de la racine de lithospermum. Dans ce traitement, le chitosan insoluble dans l'eau donne une matière particulaire de noircissement et un sel de chitosan sous forme de gel donne un matériau de noircissement sous forme de gel, tandis qu'un chitosan soluble dans l'eau, un oligosaccharide de chitosan, D-glucosamine, ou un sel de celui-ci donne une matière liquide de noircissement. Un traitement d'un polymère sous forme de poudre avec une matière de noircissement donne un matériau de noircissement à base de polymère, et le traitement de fibres avec ce matériau de noircissement donne une fibre noire de faible brillance.
Patent EP-0463012-A1 (EP)
Inventor: FLORY KLAUS
IPC: C08G12/14
Filed: 1990-03-14
Abstract: On produit des condensats cationiques d'urée-formaldéhyde par (a) conversion de l'urée avec des amino-alcools avec un rapport molaire compris entre 1 et 6:1 à des températures comprises entre 130 et 180°C, accompagnée du clivage de l'ammoniac; (b) méthylation avec du formaldéhyde des produits de conversion obtenus pendant l'étape (a) dans un milieu aqueux ayant un pH situé dans le domaine basique; (c) condensation des produits de la méthylation dans un milieu aqueux ayant un pH compris entre 0 et 6 et interruption de la réaction de condensation par réglage du pH sur une valeur comprise entre 6,2 et 8, suivie le cas échéant de la dilution du mélange de réaction avec de l'eau. Procédé de production des condensats et leur utilisation comme agents de consolidation lors de la fabrication du papier.
Patent EP-0417249-A1 (EP)
Inventor: GANZMANN HERBERT
IPC: E01H1/08
Filed: 1990-04-04
Abstract: Dispositif agencé sur un véhicule de transport, servant à produire un courant d'air soufflant ou aspirant sur une chaussée. Ce dispositif comporte une buse de sol (25) qui est reliée par une chonduite d'air (11) avec un ventilateur monté sur le véhicule. Une surface de séparation sépare la conduite d'air (11) en une partie inférieure et une partie supérieure, et contient des moyens d'étanchéification (31) qui, en position opérationnelle, relient de manière étanche les parties de la conduite (16, 19). Grâce à cette séparation, on peut déplacer la partie inférieure (19) de la conduite avec la buse de sol (25) le long d'un guide, latéralement pour qu'elle se place à côté de la conduite d'air (11) et de haut en bas pour qu'elle prenne une position de transport relevée. La garde au sol du véhicule est ainsi suffisante et aucune partie du dispositif n'en dépasse latéralement.
Patent EP-0472660-A1 (EP)
Inventor: NICOLL ROY
IPC: B43K5/18
Filed: 1990-05-10
Abstract: Un stylo à réservoir d'encre comprend une soupape actionnée par la pointe (4) du stylo de façon à laisser s'écouler l'encre jusqu'à la pointe du stylo. Le débit d'encre est réglé par un dispositif d'étranglement (8) du courant situé entre une chambre primaire (2) du réservoir d'encre agencée à l'intérieur du corps (1) du stylo à encre et une chambre secondaire (6) du réservoir d'encre, de capacité beaucoup plus réduite, d'où part un canal d'encre (10) qui mène jusqu'à la soupape. Le dispositif est formé d'une tige allongée en matière plastique microporeuse extrudée. La pointe est sollicitée contre la barre d'alimentation (3) par un élément à ressort (21) et la soupape (12) qui coopère avec un siège défini par la barre d'alimentation est sollicitée jusqu'à sa position de fermeture par un autre élément à ressort (28). L'extrémité postérieure de la chambre primaire (2) du réservoir d'encre est fermée par un bouchon graisseur formé d'une masse de graisse et d'un squelette de renforcement.
Patent EP-0477260-A1 (EP)
Inventor: WIERIKS PETER JOOST
IPC: A61F11/14
Filed: 1990-06-11
Abstract: Un dispositif protecteur d'oreilles comportant un tampon d'oreille (2) et une gaine d'oreille (1) auxquels est attaché un bras (15) reliant deux dispositifs protecteurs d'oreilles. Une ou plusieurs couches amortisseuses (4, 5, 6) en plastique sont interposées entre ledit tampon et ladite gaine. Selon l'invention, une membrane (3) est interposée entre le tampon d'oreille (2) et la gaine d'oreille (1), au moins une couche d'insertion (5, 6) pouvant être prévue sur les faces opposées de la ladite membrane.
Patent EP-0591134-A1 (EP)
Inventor: WELLER HANS-MICHAEL
IPC: B23B13/12
Filed: 1990-08-08
Abstract: Un dispositif de guidage (10) est agencé entre le tube d'avancement (13) du tour et le tube de guidage (11) des pièces à usiner allongées, aligné avec le tube d'avancement. Le dispositif de guidage (10) comprend un tube intermédiaire (12) qui s'étend de l'extrémité postérieure du tube d'avancement (13) jusqu'à au moins le tube de guidage (11). Un dispositif d'accouplement (14) agencé entre le tube d'avancement (13) et le tube intermédiaire (12) permet de fixer de manière rotative mais axialement fixe le tube intermédiaire (12) au tube d'avancement (13). Le dispositif d'accouplement (14) est hermétiquement fermé. Un joint d'étanchéité (42) axialement mobile est agencé entre le tube de guidage (11) et le tube intermédiaire (12).
Patent EP-0497826-A1 (EP)
Inventor: CHAMBERS PAUL
IPC: B66D1/74
Filed: 1990-10-25
Abstract: Un cabestan comprend: un bollard (5) avec une extrémité fixe (8) et une extrémité distale (21) un treuil de cabestan (2) monté en rotation sur le bollard; des paliers (6) disposés entre le treuil de cabestan et le bollard sur une zone de charge du treuil pour transférer directement les charges de câbles du treuil au bollard; une boîte de transmission (10) montée sur l'extrémité distale du bollard, possédant un élément de transmission d'entrée (9) et un élément de transmission de sortie (11), un engrenage de transmission de sortie (13, 14) à partir de l'élément de transmission de sortie de la boîte de transmission vers le treuil de cabestan à l'extrémité distale du bollard; et un engrenage de transmission d'entrée (50) vers l'élément de transmission d'entrée de la boîte de transmission.
Patent EP-0497874-A1 (EP)
Inventor: MAMADA AKIRA
IPC: C08J3/03
Filed: 1990-10-23
Abstract: On décrit de nouvelles compositions de gels qui changent radicalement de volume de manière discontinue lorsqu'elles sont exposées à la lumière ou mises à l'abri de celle-ci.