baber/WOPTO huggingface dataset:
Patent EP-0298376-A2 (EP)
Inventor: HAGAN RICHARD J
IPC: B67D1/04
Filed: 1988-06-30
Abstract: A valve (20) has a valve housing (22) with a central passage (28) extending axially through the valve housing (22). Apertures (40) in the valve housing connect a second passage (38) to the central passage (28) to extend through the valve housing. A poppet valve member (24) is configured for sealing engagement of the central passage (28). The valve member (24) is urged into sealing engagement with the central passage (28) by internal pressure in a container (36) on which the valve (20) is provided. The valve member (24) and the valve housing (22) are configured so that the valve member (24) will drop away from sealing the central passage (28) when the pressure in the container (36) is insufficient to hold the valve member (24) in sealing position against the the central passage (28) to leave the valve (20) in a permanently open state. An annular valve member (26) seals the second passage (38) in the same manner.
Patent EP-0298442-A2 (EP)
Inventor: NISKANEN TOIVO
IPC: F04D29/70
Filed: 1988-07-06
Abstract: The present invention relates to a centrifugal pump and a method of separating gas from solids-containing fluid which is to be pumped, in which the gas discharge passage, from the front of the impeller (6) to the gas discharge duct (8) is provided with a screen surface (13) which surface enables discharging of the gas without any solids being carried to the gas discharge system.
Patent EP-0303078-A2 (EP)
Title: Formmassen aus aromatischem Polyester und gepfropftem Siliconkautschuk
Inventor: WITTMANN DIETER DR
IPC: C08L51/08
Filed: 1988-07-20
Abstract: Formmassen aus voll-aromatischem Polyester und gepfropftem Siliconkautschuk definierter Zusammensetzung lassen sich zu Formkörpern mit ausgezeichneter Tieftemperaturzähigkeit und gleichmäßiger Oberfläche verarbeiten.
Patent EP-0317748-A2 (EP)
Inventor: ROMER MICHAEL DR
IPC: C08J7/12
Filed: 1988-10-10
Abstract: Plastics, especially polyether-imide, polycarbonate and poly(ester-co-carbonate), are pretreated for firmly adhering chemical metallisation by treating the plastics with a quaternary base dissolved in an organic solvent.
Patent EP-0316677-A2 (EP)
Inventor: SANDERS MARY ELLEN
IPC: C07K14/315
Filed: 1988-11-04
Abstract: A plasmid-borne gene from a first lactic acid bacterium is cloned in a second lactic acid bacterium by means of a cloning vector that contains a gene for a phenotypic marker and that is devoid of an origin of replication for the second bacterium. The plasmid from the first lactic acid bacterium is combined with the cloning vector to produce a recombinant plasmid that is easily selectable in the second lactic acid bacterium and that contains both the gene to be cloned and an origin of replication for the second lactic acid bacterium. The recombinant plasmid or plasmid-borne functional gene segment so identified can be inserted into a lactic acid bacterial host by conjugation or transformation to provide an improved starter culture bacterial strain.
Patent EP-0286453-A2 (EP)
Inventor: STAINER PHILIP JOHN
IPC: C02F1/50
Filed: 1988-04-11
Abstract: A biocidal composition for the treatment of water comprises a cationic polyquaternary ammonium biocide, e.g. an ionene halide, or a quaternary ammonium biocide or a quaternary ammonium biocide comprising a long chain alkyl group and three other groups selected from lower alkyl and aralkyl groups, together with a source of transition metal cations e.g. copper II cations and/or a biocide of the type containing a gem. bromonitro­methylene group e.g. 2- bromo-2-nitropropane-1,3-diol.
Patent EP-0298663-A2 (EP)
Inventor: DOIG THOMAS
IPC: E21B37/04
Filed: 1988-06-29
Abstract: The tool, for example an underreamer for descaling a casing (46), has an upper body (10) telescoped within a lower body (12) on which are pivoted operating arms (22). The arms (22) are deployed from a retracted to an extended position by the hydraulic pressure of drilling mud pumped through a through-bore (18) against a shoulder (26) causing the upper body (10) to move within the lower body (12), which movement pivots the arm (22) via camming surfaces (28,29). 
     In the fully extended position, an outer surface (44) of the arm (22) acts as a locating pad, and the arm is mechanically locked by mating surfaces (34,36).
Patent EP-0306256-A2 (EP)
Inventor: IMAMURA EISABURO
IPC: A61F2/24
Filed: 1988-08-30
Abstract: A bioprosthetic valve comprising a biological tissue containing collagen which has been crosslinked with a polyepoxy compound.
Patent EP-0316113-A2 (EP)
Inventor: STRONG DAVID SHERMAN
IPC: H01M12/08
Filed: 1988-11-03
Abstract: A metal/air battery is described having gas bubbled through the electrolyte. It includes: (a) a tank defining a reservoir for liquid electrolyte; (b) one or more metal-air cells (15) disposed for immersion in electrolyte, each cell including at least one air cathode having a first surface disposed for contact with electrolyte and a second surface exposed to air and a metal anode (35) disposed for immersion in electrolyte in facing spaced relation to the first cathode surface to constitute therewith an anode-cathode pair electrically coupled by electrolyte, (c) a bubbler tube (37) extending horizontally in the electrolyte reservoir beneath each cell and serving to inject gas bubbles into electrolyte between the anode and cathode of each cell, and (d) means (75) for providing a pulsating flow of gas to the bubbler tube(s).
Patent EP-0318294-A2 (EP)
Inventor: TANIGUCHI KOICHI
IPC: C09B23/14
Filed: 1988-11-24
Abstract: A polymeric cationic dye of formula (I) 
R-(HN-A-CH=CH-B)n      (I) 
wherein n is a number of 2 or greater 
the groups of formula -HN-A-CH=CH-B are the same or different and, in each 
A is a substituted or unsubstituted benzene ring and 
B is the residue of a quaternised methylene active compound; and 
R is the residue of a cross-linking agent.
Patent EP-0319223-A2 (EP)
Inventor: OKUYAMA HIROAKI
IPC: G11C11/409
Filed: 1988-11-28
Abstract: The invention relates to an output circuit system of static random access memory, which is designed to set the output potential of the data output circuit to an intermediate potential by detecting the transition of the address signal before the data in a memory cell is read out from the memory cell, and then, the output potential of the data output circuit is changed from the intermediate voltage to H level or from the intermediate potential to L level. In this way, since the output potential changes from the intermediate potential to H level or L level, the transition time of the output potential is shortened, and therefore the data reading action may be increased in speed. Ath the same time, the momentary current through the data output circuit may be decreased.
Patent EP-0306459-A2 (EP)
Inventor: LOVATO VITTORIO
IPC: G01K1/14
Filed: 1988-05-03
Abstract: A temperature detecting apparatus for pipes in refinery furnaces and the like comprises a thermocouple (2) which is supported in cantilevered fashion in the region of its detection end (2b) fastened to the outer surface of a pipe (5) which is located inside a furnace. The thermocouple is provided with a rod (2a) coming out of the furnace through an opening (3) formed in the furnace wall (4). Coaxial with the rod (2a) is a tubular protection element (10) which is secured along the rod, slidably and loosely passes through the opening (3) and extends as far as close to the pipe (5). Formed between the rod (2a) and tubular element (10) is an air space (2) through which air is sucked from the outside to the inside of the furnace by effect of the slight vacuum created in the furnace.
Patent EP-0324473-A2 (EP)
Inventor: HAMAMURA KEN C O FUJI PHOTO FI
IPC: B29C48/08
Filed: 1989-01-12
Abstract: Thermoplastic resin is extruded from a die (4) to be molded into a film-like shape in an atmosphere of a gas (10) inactive to the melted resin (8), thus preventing the adherence of the denaturalized substances of the resin which make scorelines on the surface of a film product of the resin.
Patent EP-0337135-A2 (EP)
Inventor: RICHTER WOLFGANG-DIETER DIPL-I
IPC: B61F5/38
Filed: 1989-03-15
Abstract: The invention relates to a wheel set guide means for bogies of rail vehicles, in particular short-distance vehicles. 
<??>In such vehicles, a continuous floor at as low a level as possible is desired. According to the invention, a bogie with movable wheels is proposed in which the movable wheels are mounted in plummer blocks which are connected to a frame which is connected to the bogie frame so as to swivel in the vertical direction. One of the wheel sets is driveable, the movable wheels being connected in a torsion-proof manner by means of gear means so that in terms of running technology the same effect is achieved as if the driven wheel set were connected to a rigid wheel set shaft without, however, said shaft being in the way of the floor so that a vehicle equipped with these bogies can have a continuous floor at a low level. 
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Patent EP-0334273-A2 (EP)
Inventor: ANGELUCCI ANGELO
IPC: G01R1/04
Filed: 1989-03-21
Abstract: The fixture for measuring the static characteristics of microwave active components comprises mechanical devices for supporting two dielectric substrates. Two terminals of the components under test are separately connected to electrical circuits constructed on said dielectric substrates. This fixture can be adapted to geometric sizes of component case and allows it to be submitted to thermal tests, without mechanical stresses due to expansion. The electrical circuit constructed on the dielectric substrates ensures the circuit stability avoiding spurious oscillations during static characteristic measurement.
Patent EP-0352468-A2 (EP)
Inventor: KOIZUMI YUTAKA
IPC: B41J2/16
Filed: 1989-06-20
Abstract: This specification discloses an orifice plate (12) provided with openings capable of defining discharge ports (13) for discharging the ink of a recording head (11) carried on an ink jet recording apparatus, characterized by the provision of positioning portions (14) usable for the positioning of the discharge ports (13) in the ink jet recording apparatus. The specification also discloses an ink jet recording head using such orifice plate (12), and an ink jet recording apparatus carrying the head (11) thereon.
Patent EP-0348971-A2 (EP)
Inventor: HINZ MANFRED
IPC: E05B63/20
Filed: 1989-06-29
Abstract: A fastener released upon closing a door is equipped with a lock case (4) which has a lock cover (3) with a passage orifice (3'') provided in it for the bolt (2) spring-loaded in the direction of its extended locking position and in which is accommodated a spring-loaded clamping plate (6) engaging round the bolt (2) by means of a clamping lug (6'') and making it possible to block it in any insertion positions. Furthermore, there is a latch (5) under spring force which likewise passes through the lock cover (3) and which is pressed in when it strikes the door frame and thereby pivots the clamping plate (6) into its release position freeing the bolt (2). To achieve a simple and easily mountable compact design, the latch (5) is equipped with a cavity (5') which extends continuously in its direction of displacement and through which the bolt (2) is to be inserted. Advantageously, the lock case (4) and the latch (5) are hollow-cylindrical and, together with the correspondingly annular clamping plate (6) and a compression spring (7) loading it, are arranged concentrically relative to the bolt (2) to be inserted centrally through all of them. <IMAGE>
Patent EP-0405004-A2 (EP)
Inventor: WEITZEL WOLFGANG
IPC: H04H40/90
Filed: 1989-07-11
Abstract: In satellite receiving systems for receiving communication satellites or communication satellites and DBS satellites in the standardised first satellite intermediate frequency band, the DBS channel pattern cannot be filled with the 40 channels provided for it due to the greater bandwidth in the communication satellite signals. To create optimum utilisation of this intermediate-frequency band, the invention provides for each transmission channel a converter unit (UE1 to UE5), which in each case consists of a frequency divider (FT) by means of which the channel bandwidth of the communication satellite signals is halved, and an up-converter (U2) converting the respective transmission channel from the lower frequency position in a free channel in the DBS channel pattern of the first satellite intermediate-frequency band, following each frequency divider (FT). <IMAGE>
Patent EP-0377790-A2 (EP)
Inventor: LAIBOWITZ ROBERT B
IPC: H01L29/772
Filed: 1989-09-21
Abstract: A new solid state device based on mesoscopic phenomena is described. A structure of the mesoscopic device (1) includes phase altering scattering sites (25) at various energy levels disposed in proximity to a conductive channel (16). The carriers in the channel (16), being isolated by a potential barrier (20), are not in substantial scattering interaction with the phase altering scattering sites (25) in the absence of a sufficiently large voltage at the gate (40) of the mesoscopic device (1). Increasing the potential at the gate (40), imposes a localized electric field along the channel (16), increases the energy levels of the carriers in the channel (16), and allows the carriers to interact with the phase altering scattering sites (25), thereby controllably varying the con­ductance of the channel (16).
Patent EP-0374490-A2 (EP)
Inventor: MENEGOLI PAOLO
IPC: G01R19/00
Filed: 1989-11-17
Abstract: A voltage comparator circuit for integrated circuit drivers of electric loads, being of a type operative to compare voltage values appearing at a pole pair of the driver, comprises first (T9) and second (T10) transistors, both of the NPN type, having their respective bases (B9,B10) connected together into a differential cell configuration and respective emitters (E9,E10) connected each to a corresponding pole (5,6). Such transistors have their respective collectors (C9,C10) connected to the input side of the driver circuit and enable a comparison to be performed between said poles even where negative voltage values appear on both of them.
Patent EP-0374873-A2 (EP)
Inventor: GLASSFORD CRAIG L
IPC: B01D63/02
Filed: 1989-12-20
Abstract: An apparatus and method for preferably transferring a gas from a gaseous mixture to liquid absorbent utilizing an array (1) of microporous hollow membrane fibers. The membrane fibers are advantageously woven into a cloth. Layers of membrane fibers are positioned in a gas conduit (2) generally normal to the direction of gas flow arranged in a generally planar array (1).
Patent EP-0380820-A2 (EP)
Inventor: SOMMI FRANCO
IPC: A23L19/00
Filed: 1989-04-07
Abstract: A method and a relevant facility for the treatment of an alimentary product with a liquid content calls for a step in which the whole alimentary product is disintegrated and in which the disintegrated alimentary product is for the first time at such a temperature as to undergo an evaporation, and calls for subsequent steps of processing of the disintegrated alimentary product; the evaporate resulting from the evaporation is condensed and collected, with the flavouring substances contained in the evaporate being recovered.
Patent EP-0333376-A2 (EP)
Inventor: GUSCOTT JOHN KENNETH
IPC: G08B13/191
Filed: 1989-03-08
Abstract: An improved passive infrared balanced detector is disclosed that reduces false alarm rates induced from random thermal activity and other causes of splitting of the field(s) of view of the balanced detector into distinct and independent regions. The detector includes balanced elements selectively shaped and arranged to provide common mode rejection within each of the regions into which the field(s) of view are subject to being split. The unbalance susceptability of the novel detectors may be adapted to the particular requirements of the intended applications environment. The susceptibility for unbalance is materially reduced and therewith the alarm confidence level of the detectors is substantially improved.
Patent EP-0345005-A2 (EP)
Inventor: SAKAGUCHI JUNEI ASAHI-OYAMA MA
IPC: G03G5/047
Filed: 1989-05-30
Abstract: An electrophotographic photosensitive material suitable for application to a lazer beam printer is disclosed which includes an electrically conductive support having provided thereon a charge generating layer containing an X-form, metal-free phthalocyanine and a charge transporting layer containing a specific butadiene compound, hydrazone compound or pyrazoline compound. The charge transporting layer may be prepared by coating with a solution containing the specific compound, a polycarbonate resin and a dioxane-containing solvent.
Patent EP-0356257-A2 (EP)
Inventor: GOODRICH RAYMOND PAUL
IPC: A61K35/14
Filed: 1989-08-25
Abstract: A process and medium are disclosed for the lyophilization of cells which comprises the use of solutions including monosaccharide hexoses and pentoses, and/or bicompatible amphipathic polymers to permit the reconstitution of viable cells.
Patent EP-0361876-A2 (EP)
Inventor: JACKSON BRIAN KENNETH
IPC: B23D61/14
Filed: 1989-09-26
Abstract: A saw blade (8) has a series of slots (12) spaced along one edge in each of which is secured a saw tooth (11), each slot (12) being contoured to provide an edge to support a mating surface on the tooth (11) with a further portion of the tooth extending beyond the slot (12) to overlie part of the surface of the blade (8), part (14) of the slot being sector-shaped and another part (13) including an entry portion with side edges and base edges (38) to support mating surfaces on the tooth, with the tip of the sector­shaped part (14) being located centrally of the base edge (38) and the sector-shaped part symmetrically disposed with respect to the longitudinal axis (A-A) of the slot (12). 
     The saw teeth (11) have a pointed cutting portion (16) and a body portion contoured to provide a platform (23) located within the sector-shaped part (14) and support shoulders (38). The curved surface (20) of the sector­shaped part (23) provides a support edge supporting the blade with its support (2), although this can be provided by an attached strip (41).
Patent EP-0373888-A2 (EP)
Inventor: KUBELIK IGOR
IPC: B41J2/39
Filed: 1989-12-12
Abstract: There is disclosed a print cartridge for use in charge transfer imaging comprising first and second electrodes (125,121) on opposite sides of a layer of dielectric material (118). The first electrodes (125) extend in a first direction and the second electrodes (121) extend in a second direction, and edge structures are provided in the second electrodes (121) at the locations where the electrodes cross. Various structures are described designed to improve the pattern of charge transfer to a receptor (129) to enhance the accuracy of the image and the efficiency of the transfer.
Patent EP-0369978-A2 (EP)
Inventor: D ALAYER DE COSTEMORE D ARC ST
IPC: G11B17/032
Filed: 1989-11-08
Abstract: The device applies to turntables in which the disc is placed substantially vertical when it is in the operating position and comprises means (72) for positioning a small-diameter disc (7) at a location close to its operating location when the said disc passes from its loading plane to its operating plane and on the other hand means (20, 11) enabling this disc (7) to be kept against these positioning means (72) when the disc (7) passes from its operating plane to its ejection plane. 
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Patent EP-0380031-A2 (EP)
Inventor: SHOJI YUKIKAZU C O MIHARA MACH
IPC: B41F31/00
Filed: 1990-01-22
Abstract: In a rotary press having an ink roller array provided in an inking unit of a print unit thereof, to supply ink necessary for a next printing process to an ink applying roller during preparation of the running of the rotary press, a drive unit for the ink roller array is provided so that the ink roller array can be driven by an ink source motor for driving an ink source roller while the print unit is not in operation and that an ink call roller can be brought into contact with the ink source roller and an ink transfer roller.
Patent EP-0400559-A2 (EP)
Inventor: UOMI KAZUHISA
IPC: H01S5/12
Filed: 1990-05-29
Abstract: An improvement for a semiconductor optical device having a region in which semiconductor or carriers in the semi­conductor and light interact, for example, an active region for a semiconductor laser, an optical wave guide region of an optical modulator, etc. resides in a quantum well structure comprising a well region and a barrier region. A semiconductor optical device is remarkably improved in the degree of freedom of its design such as thickness and selection of material without deteriorating the quantum effect, by introducing a super lattice super-layer structure into the barrier region of the quantum well structure or defining the strain for the well region and the barrier region.
Patent EP-0402710-A2 (EP)
Inventor: BAINBRIDGE PETER
IPC: C02F5/12
Filed: 1990-05-31
Abstract: The present invention provides a method for treating aqueous systems to reduce or prevent the deposition of barium sulphate and other insoluble sulphates therein, comprising the addition to the water of an effective amount of an interpolymer of an ethylenically polymerizable carboxylic acid, and at least one of an ethylenically polymerizable dicarboxylic acid or other copolymerizable comonomer. The polymers are particularly effective in preventing scale precipitate at high levels of barium (e.g. 700 ppm) and under low pH conditions.
Patent EP-0403988-A2 (EP)
Inventor: ETTER HEINZ
IPC: G01N3/08
Filed: 1990-06-16
Abstract: The device contains draw-off means (11) for the continuous draw-off of the sample material (P) from a stock, two mutually spaced pairs of rollers (W, W') for stretching the sample material (P) and a store (12) located between the draw-off means (11) and the first pair of rollers (W) in the direction of run of the sample material (P). Each pair of rollers (W, W') contains a transport and a pressure roller (4, 5; 4', 5'), the transport roller (4, 4') alternately bearing with a first casing part against the pressure roller (5, 5') or being spaced away from this with a second casing part, so that a periodically opening and closing nip for the sample material (G) is formed between the rollers of each pair of rollers. …<??>This makes it possible to conduct a tension test on the principle of a constant deformation speed and the device can be used in a way insensitive to dirt and for any sample material. …<IMAGE>…
Patent EP-0406870-A2 (EP)
Inventor: SHIMIZU TOSHIKAZU C O NEC CORP
IPC: G09G3/36
Filed: 1990-07-05
Abstract: An active matrix liquid crystal display comprises a plurality of pixels arranged to form a pixel matrix having M rows and N columns where M is a natural number and N is an even natural number, and each of the pixels has a common electrode, an individual electrode connected to one end of a current path of one associated transistor, and a liquid crystal material sandwiched between the common electrode and the individual electrode. Also, the display comprises N/2 drain bus lines arranged to form N/2 columns, and 2M gate bus lines arranged to form 2M rows. A (j)th drain bus line of the N/2 drain bus lines is connected to the other end of the current path of each of transistors associated to pixels of (2j-1)th and (2j)th columns of the pixel matrix where j = 0 to N/2. A (2i-1)th gate bus line of the 2M gate bus lines is connected to a control electrode of each of transistors associated to (2k-1)th pixels positioned at a (i)th row of the pixel matrix where i = 1 to M and k = 1 to N/2, and a (2i)th gate bus line of the 2M gate bus lines is connected to a control electrode of each of transistors associated to (2k)th pixels positioned at the (i)th row of the pixel matrix.