baber/WOPTO huggingface dataset:
Patent EP-0251393-A2 (EP)
Title: Pistons
Inventor: RHODES MICHAEL LEDSHAM PRICE
IPC: F16J1/02
Filed: 1987-06-18
Abstract: Pistons are described having improved stiffness of the lower skirt regions to improve piston guidance and oil film distribution. The pistons comprise a crown portion (11) including piston ring grooves and a skirt portion, the skirt portion being divided into an upper skirt region (14) and a lower skirt region (15) and wherein on each side of the plane including the piston axis and the gudgeon pin axis the upper skirt region (14) includes at least one bearing surface (16) and the lower skirt region (15) comprises a bearing surface (18) supported by two substantially planar skirt wall sections (19) lying in planes forming an acute angle of less than 75° with the plane which includes the piston and gudgeon pin axes, the maximum bearing contact arc of the lower skirt bearing surface lying between 10° and 22.5° either side of the plane which is normal to the gudgeon pin axis and which includes the piston axis.
Patent EP-0233069-A2 (EP)
Inventor: OIKAWA HIDEAKI
IPC: C09J179/08
Filed: 1987-02-06
Abstract: This invention relates to a novel polyimide and describes method of its preparation, adhesives of the polyimide and the method for their application.The polyimide has recurring units of the formula(where R is a tetra-valent radical selected from the group consisting of aliphatic radical having not less than two carbons, cyclo-aliphatic radical, monoaromatic radical, condensed polyaromatic radical, and non condensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function).The polyimide can be prepared by reacting 2,6-bis(3--amino-phenoxy)pyridine with tetracarboxylic dianhydride in an organic solvent and imidizing resultant polyamic acid.Various tetracarboxylic dianhydrides can be used and particularly preferred are pyromellitic dianhydride and 3,3',4,4'--benzophenonetetracarboxylic dianhydride.
Patent EP-0279096-A2 (EP)
Inventor: SHIDA TAKAFUMI
IPC: C07C205/34
Filed: 1987-04-24
Abstract: Benzyl ether compounds represented by the general formula (i):
     wherein R represents a branched alkyl group of from 4 to 8 carbon atoms, a cycloalkyl group of from 4 to 8 carbon atoms, an alkyl group of from 1 to 3 carbon atoms substituted by an alicyclic group of from 3 to 7 carbon atoms, an aralkyl group of from 7 to 9 carbon atoms, an alkyl group of from 2 to 4 carbon atoms substituted by an alkoxy group of from 1 to 4 carbon atoms, an unsaturated alkyl group of from 3 to 6 carbon atoms, a straight-chain alkyl group of from 2 to 8 carbon atoms substituted by from 1 to 15 fluorine atoms or a branched alkyl group of from 3 to 8 carbon atoms substituted by from 1 to 15 fluorine atoms and X represents a nitro group or an amino group; provided that, when X is a nitro group, R is neither an aralkyl group nor an ethyl group substituted by fluorine atom(s); are intermediates useful in the preparation of 1,2,4-triazole-3-carboxamide herbicides.
Patent EP-0256778-A2 (EP)
Inventor: KRAJEWSKI RONALD
IPC: H05K3/20
Filed: 1987-08-05
Abstract: A multi-layer PC board structure is created by successively building PC board layers of metal and insulator on a carrier (708). Each layer is built sucessively by building a layer of circuitry, a layer of inter-layer connectors ("vias"), and a layer of protective "caps" to allow the formation of voids and throughholes. Each layer of circuitry, vias, and caps is generally built by successive deposition of a photoresist layer (714), exposure of the photoresist layer under a mask (723), and plating of metal (722, 724, 710). Photoresist material (714) is stripped away at appropriate process steps and replaced with a flowable polyimide insulator (712) which may be locally tailored for a desired thermal coefficient of expansion ("TCE") and a desired rigidity. The method is adapted to create PC boards with a center-oriented thermal plane ("COTP") (731) with connectors which extend completely through, without any hard tooling. The method is also adapted to create extended three-dimensional voids within the completed PC board, and arbitrary through-holes which extend completely through the PC board, without any hard tooling.
Patent EP-0260850-A2 (EP)
Inventor: BEGG ALAN ROBERT
IPC: B22F7/06
Filed: 1987-09-04
Abstract: This case relates to tough, wear resistant graded structure composites, to a process for preparing the same and to tools and products fabricated therefrom. The composites have a surface layer e.g. of WC and a binder, an interface layer, e.g. which is a stepwise transition from the surface layer whereby the binder content thereof gradually increases, a substrate layer which is a combination of e.g. an initial high carbon steel layer and finally a base layer of bainitic steel. The composites are substantially non-porous and can be used to fabricate components such as drill bits, wear plates, pump components machine tools, seals, washers, bearings and the like.
Patent EP-0266877-A2 (EP)
Inventor: NGUYEN PASCALINE H
IPC: C04B41/88
Filed: 1987-09-10
Abstract: The present invention is directed to metallized substrates and particularly metallized substrates for use in microwave integrated circuits and a process for producing such substrates. The metallized substrates generally comprise a dielectric substrate (11) on which is formed a pattern such as a conductor line pattern (20,22), the pattern being formed of a conductive metal. The metallization is accomplished by forming one or more adhesion layers (14,12) from a metallo organic composition which is built up with a metal conductor (16,18).
Patent EP-0261978-A2 (EP)
Inventor: GILHAM DENNIS THOMAS
IPC: B41J2/325
Filed: 1987-09-25
Abstract: A franking machine is disclosed which has a thermal printer for printing variable (11) and non-variable (10, 12, 13) information at a single print station. The non-variable information is printed by thermal print elements (14) having a form corresponding to the information pattern and the variable information is printed by arrays (16) of selectable print elements (15). The elements (14, 15) are preferably heated by passing electric current through the elements. Alternatively, the elements (14) for non-variable information may be heated from a heated substrate (17).
Patent EP-0254681-A2 (EP)
Inventor: BABLER FRIDOLIN DR
IPC: C09B67/22
Filed: 1987-07-15
Abstract: Compsn. comprises indanthrone blue (I) and a sulphonated (I) deriv., (II), of similar structure but substd. by -(SO3-X+)m. X=H, M(n+)/n, or (+)NR1R2R3,R4; M=metal cation; n=1-3; each of R1-R4=H, 1-18C alkyl, 5-6C cycloalkyl or phenyl (opt. substd. by 1-18C alkyl; or R3 and R4 complete pyrrolidine, imidazolidine, piperidine, piperazine or morpholine ring; or R2R3R4 together complete pyrrole, pyridine, picoline, pyrazine or (iso)quinoline ring; m=0.2-3.
Patent EP-0262091-A2 (EP)
Inventor: TIEKE BERND DR
IPC: C08F8/00
Filed: 1987-09-14
Abstract: Dehydriertes, in organischen Lösungsmitteln unlösliches Polycyclopentadien mit einer spezifischen Leitfähigkeit von mindestens 10<-><7> S·cm<->¹, enthaltend im wesentlichen die wiederkehrenden Struktureinheiten der Formeln III bis VIII <IMAGE> worin X<-> für ein von Jod, einem Metall- oder Metalloidpentahalogenid abgeleitetes Anion steht, wird durch Behandeln von Polycyclopentadien mit Jod, einem Metall- oder Metalloidpentahalogenid erhalten und kann als elektrisch leitfähiger Werkstoff zur Herstellung von beispielsweise Leitern, Elektroden, Batterien oder Halbleiterbauteilen verwendet werden.
Patent EP-0271458-A2 (EP)
Inventor: ZAGHLOUL AMIR IBRAHIM
IPC: H01Q13/08
Filed: 1987-11-03
Abstract: A printed-circuit antenna array having broadband linear polarization, and circular polarization with high polarization purity, feedlines (2) of the array being capacitively coupled to feeding elements (3) at a single feedpoint or at multiple feedpoints, the feeding elements in turn being electromagnetically coupled to corresponding radiating elements (4). The radiating elements may be patches, disposed on a dielectric board which is contactlessly coupled to another board con­taining the feeding elements. Alternatively, the radiating elements may be slots, formed by an absence of material in ground planes which are formed on the same dielectric board as the feeding elements. Still further, both radiating patches and radiating slots may be used. The exclusively contactless coupling enables simple, inexpensive multilayer manufacture.
Patent EP-0263805-A2 (EP)
Inventor: MARSONER HERMANN DR DIPL-ING
IPC: G02B6/42
Filed: 1987-04-14
Abstract: Bekannte Sensorelemente zur optischen Bestimmung von Stoffkonzentrationen in gasförmigen und flüssigen Proben, bei welchen in einer Indikatorschicht die mit der Probe in Wechselwirkung stehende Indikatorsubstanz vorliegt, sind - bedingt durch ihre Grösse bzw. jene der Einrichtungen zur Fluoreszenzlichtmessung - nur bedingt für Mikroanalysengeräte geeignet. Ausserdem wird die Anregungsstrahlung nur ungenügend ausgenützt. Zur Umgehung dieser Nachteile wird vorgeschlagen, die fotoempfindlichen Elemente (3) in Form von Mikrostrukturen zusammen mit ihren elektrischen Kontaktierungen in planarer Anordnung im Sensorelement zu integrieren sowie die Indikatorschicht (8) als Wellenleiter auszubilden, in welche die Anregungsstrahlung (11) mittels eines optischen Elements (13, 14) eingekoppelt wird.
Patent EP-0254710-A2 (EP)
Inventor: REPA OTTO ING
IPC: F41G1/16
Filed: 1987-07-06
Abstract: Eine Visiereinrichtung, insbesondere für Gewehre, weist einen in einem Gehäuse (1) quer zur Visierlinie in zwei zueinander normalen Richtungen verstellbar geführten Träger (2) zur Aufnahme eines Okulars, beispielsweise eine Lochkimme (3), auf, an welchem Okularträger (2) in Verstellrichtung wirkende, sich am Gehäuse (1) abstützende Stelltriebe (4,5) angreifen. Um eine leichtgängige und doch exakte und feinfühlige Justierung zu ermöglichen, bildet der Okularträger (2) eine in der durch die Verstellrichtungen bestimmten Ebene liegende planparallele Führungsplatte (6), die unter beidseitiger Zwischenlage von Kugelkränzen (7) zwischen zwei zur Führungsplatte (6) parallelen Führungsflächen (8a, 9a) einspannbar ist.
Patent EP-0280259-A2 (EP)
Inventor: KOMAMI YUJI C O KAWASAKI STEEL
IPC: B21B37/22
Filed: 1988-02-23
Abstract: A method and system for suppressing necking and hunting of a hot rolled strip in a hot rolling line includes holding of the strip temperature at the outlet of a finishing mill at a temperature immediately above a transformation temperature. Air cooling of the strip is performed from the transformation start point to the transformation end point. The transformation end point, rapid cooling by water cooling is performed thereafter.
Patent EP-0286069-A2 (EP)
Inventor: KOTHMANN WOLFGANG DR ING
IPC: H01Q1/02
Filed: 1988-04-06
Abstract: To dissipate high power losses, the S/E modules (4,4a) are mounted on a liquid-cooled assembly plate (3,3a). In addition to effective cooling of the S/E modules, the arrangement of the assembly plate (3,3a) behind the radiating elements (1) produces a compact design, optimised in terms of the conductor paths, and provides protection against location systems using sensors which respond to thermal radiation. <IMAGE>
Patent EP-0293008-A2 (EP)
Inventor: KAEDE KAZUHISA
IPC: H01S5/40
Filed: 1988-05-27
Abstract: There are disclosed a method and apparatus for stabilizing an oscillation frequency separation among a plurality of laser devices wherein a plurality of laser devices (8,9,10) are controlled to radiate output lights each having a predetermined frequency so that a frequency separation is stabilized. Reference pulses are produced in an optical resonator(5) which has periodic resonant frequencies and receives a frequency sweep signal, and beat signals are produced in accordance with the combination of the frequency sweep signal and oscillation frequencies of the plurality of laser devices (8,9,10). The reference signals and beat signals thus produced are processed to produce error signals which are time differences between the producing times of the both signals. The plurality of laser devices (8,9,10) are controlled to be driven such that the error signals become a predetermined value.
Patent EP-0299522-A2 (EP)
Inventor: AOKI TAKAYOSHI
IPC: B01J19/00
Filed: 1988-07-15
Abstract: A process and apparatus for automatically weighing and introducing chemicals are intended to automatically weigh the chemicals and introduce the chemicals into a treatment tank; the chemicals (1a, 1b, 1c,...1x) are injected into a che­mical container (3) and weighted, and then transported to a dissolving tank (5a) adjunct to the treatment tank (5), and then introduced into the dissolving tank. A control means is provided to put under its control the operations of injecting into a chemical container a desired amount of desired chemicals selected from among plural sorts of chemicals (1a,...1x) and driving a transportmeans (7) and an introduc­ing means automatically in association with this in­jecting operation.
Patent EP-0318001-A2 (EP)
Inventor: SHIBAHARA YOSHIHIKO
IPC: G03C1/09
Filed: 1988-11-24
Abstract: A silver halide photographic material, comprising: 
at least one negative type silver halide emulsion layer coated onto a support; 
at least one compound represented by general formula (I), said compound being included in at least said one emulsion layer; and 
sensitivity specks present in at least one kind of silver halide grains which are included in the said emulsion layer whereby said sensitivity specks are present within the grains at a depth of at least 2 nm, but less than 50 nm, from the surface of the grains, with the number of said sensitivity speck on the surface of the grains being at least 1/10th, but not more than 5/10ths of the maximum value of sensitivity speck distribution in the depth direction,
      wherein, Z₂ represents a heterocyclic ring having at least one substituent group selected from the group consisting of -SO₃M, -COOR₂, -OH and -NHR₃, M is   selected from the group consisting of hydrogen atom, an alkali metal and an -NH₄ group, R₂ is selected from the group consisting of a hydrogen atom, an alkali metal and an alkyl group having from 1 to 6 carbon atoms, R₃ is selected from the group consisting of a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, -COR₄, -COOR₄ and -SO₂R₄, and R₄ is selected from the group consisting of a hydrogen atom, an aliphatic group which may be substituted and an arcmatic group which may be substituted.
Patent EP-0318998-A2 (EP)
Inventor: REPENNING DETLEV DR
IPC: C23C14/32
Filed: 1988-12-01
Abstract: A process for the production of layers which have great hardness and/or low-friction properties, in particular based on micro- or nanodisperse carbide carbon layers, is proposed. A target material to which an electric potential is applied is converted in a vacuum into a target plasma. The target plasma reaches the substrate which is at an electric potential approximately equal to or higher than that of the target material and forms the desired layer on said substrate. The target material is formed by a titanium alloy, the titanium alloy being vaporised by means of an arc to give a titanium alloy plasma. The conversion of the titanium alloy into the plasma is carried out in the gas phase of ionised carbon. The process is operated by a method in which titanium alloy carbide, gaseous titanium alloy and carbon are formed, the carbide of the titanium alloy, the titanium alloy and carbon being formed, in succession on the substrate, as a ternary layer which additionally has thermal stability.
Patent EP-0320060-A2 (EP)
Inventor: BERTRAM LEO
IPC: F04D29/22
Filed: 1988-12-05
Abstract: The invention relates to a pump device for low viscosity fluids, particularly for aqueous alkaline solutions, with an electric drive motor and a pump chamber in which a pump wheel rotates. The pump device has a combination of the following known characteristics: a) the drive motor (1) is a two-pole single phase synchronous motor with permanently magnetic rotor (5), b) the pump chamber (22) is designed mirror-symmetrical to a plane of an outlet connection (24) running radially outwards, c) the pump wheel (25) has flexible pump vanes (25a, 25b) whose pump function is independent of the direction of rotation, d) the pump chamber (22) is sealed off from the drive by means of a low-friction double lip seal (12), e) a mechanical coupling element (14, 17; 114, 117; 14, 217) which has a free runout is provided between motor (1) and pump wheel (25). <IMAGE>
Patent EP-0285315-A2 (EP)
Inventor: DEHOFF RICHARD J
IPC: H04N13/00
Filed: 1988-03-23
Abstract: The present invention constitutes a cursor image (36) for use in graphics imaging systems for providing images with three-dimensional qualities. The cursor indicates position within a three-­dimensional space. The cursor comprises a reference symbol (38) located at a reference point (58) on a reference plane (60), a pointer symbol (40) located pointing to the position (42), and a tether symbol (44) connecting the reference symbol and the pointer symbol. The cursor image includes depth cue features which assist the observer in gauging the depth of the position being indicated. The cursor is preferably displayed with a stereoscopic imaging system (10) employing a liquid crystal stereo switch unit (16). In such a system the cursor image is displayed on a cathode-ray tube (12) in left and right perspective projections (46) and (48) of differing binocular disparity which are used by the observer to form a single three-dimensional image of the cursor.
Patent EP-0285404-A2 (EP)
Inventor: LEVY RICHARD
IPC: A01N25/10
Filed: 1988-03-30
Abstract: Superabsorbent solid organic polymers which absorb over 100 times their weight in water are used in aquatic environment insect population control compositions. Methods for using the superabsorbent polymer insecticidal delivery agents for the control of aquatic environment insect populations, including mosquito population control methods, in an area needing aquatic environment insect population control treatment or in a dry area that is expected to need aquatic environment insect population control, are described.
Patent EP-0315484-A2 (EP)
Inventor: KOZAKI SHYUICHI
IPC: G09F9/35
Filed: 1988-11-04
Abstract: A liquid crystal display device which comprises first and second electrode substrates spaced a predetermined distance from each other, a nematic liquid crystal layer added with an optically active material and having a posi­tive dielectric anisotropy, which layer is sandwiched between the first and second electrode substrates such that the liquid crystal molecules exhibit a helical structure in which they are twisted in a predetermined twist angle in a direction across the thickness of the liquid crystal layer, a light detecting element positioned on one side of the first electrode substrate remote from the liquid crystal layer, a polarizing element positioned on one side of the second electrode substrate remote from the liquid crystal layer, and a film-like sheet having a birefringence and disposed between the light detecting element and the first electrode substrate, and/or between the polarizing element and the second electrode substrate.
Patent EP-0319172-A2 (EP)
Inventor: TOYAMA KIYOSHI C O TEIJIN SEIK
IPC: G01D5/34
Filed: 1988-11-17
Abstract: An optical position sensor comprising: light emitting means for emitting a light; first guiding means connected at its one end to said light emitting means and adapted for guiding said light emitted from said light emitting means; polarizing means (96) connected at its one end to the other end of said first guiding means and adapted to convert said light into a light having a unitary plane of polarization; a Faraday effect element (97) connected at its one end to said polarizing means and having reflecting means (98) at its other end; a movable magnetic scale (83) disposed in opposed relationship to said reflecting means and having a plurality of magnetized segments (99a to 99g) mounted thereon, the unitary plane of polarization being optically rotated in accordance with the arrangement of said magnetized segments; polarization detecting means (100) connected at its one end to said Faraday effect element in parallel relationship to said polarizing means and adapted to pass therethrough a light wherein the plane of polarization thereof is not optically rotated; second guiding means connected at its one end to the other end of said polarization detecting means and adapted for guiding the light from said polarization detecting means; and opto-electric converting means connected to the other end of said second guiding means and adapted for converting the light guided by said second guiding means into an electric signal.
Patent EP-0319345-A2 (EP)
Inventor: PLANKENHORN DANIEL JOSEPH
IPC: G01J1/42
Filed: 1988-12-05
Abstract: A scanning system which obtains and displays the spatial energy distribution of a high power laser beam. The beam (30) to be examined is directed toward two knife-edge mirrors (34, 35) arranged to pass only a thin vertical segment (40) of the beam and to reflect the remainder of the beam to power absorbers (46, 47). The mirrors are scanned across the beam, and a scanning disk (50) having helical slots (51) therein samples the vertical segment, and these samples are directed by means of a paraboloid mirror (70) toward a detector (60) responsive to the wavelength of the laser beam. The output of the detector is placed into storage (140) and thereafter displayed on a high resolution color monitor (150) with different colors representing different energy levels or as a simulated three dimensional display so that an operator may obtain an indication of the spatial energy distribution of the laser beam under examination.
Patent EP-0321284-A2 (EP)
Inventor: TOYOFUKU KUNITAKA
IPC: C07D215/10
Filed: 1988-12-16
Abstract: An electrophotographic material having an enhanced sensitivity to laser rays comprises,
     (A) an electroconductive substrate, and   (B) a laser-sensitive electrophotographic layer comprising (a) a finely divided photoconductive zinc oxide, (b) a resinous binder, (c) a sensitizing coloring material comprising at least one member selected from the compounds of the formulae (I)
      in which m¹, m², n¹ and n² are 1 to 8, R¹ and R² are -COO or -SO₃ , R³ and R⁴ are H, -CH=CH₂ -COOH, -SO₃H, -COONa, -SO₃Na, COOK or -SO₃K, X is Cl, Br, I or -ClO₄ ,  
      and, (d) a sensitizing assistant comprising at least one carboxylic anhydride of the formula (III):
      wherein R⁵ and R⁶ are H, C₁₋₈ alkyl or phenyl.
Patent EP-0310540-A2 (EP)
Inventor: HUBL DIETER DR
IPC: A01N43/40
Filed: 1988-09-30
Abstract: The invention relates to the use of 2-(2-pyridylimino)-­1,3-dithietane or an acid addition salt thereof for combating nematodes and also to novel acid addition salts of 2-(2-pyridyl­imino)-1,3-dithietane.
Patent EP-0326935-A2 (EP)
Inventor: STEININGER HELMUT DR
IPC: G11B7/243
Filed: 1989-01-26
Abstract: Process for producing a thin X-ray-amorphous layer of aluminium nitride or aluminium siliconitride on a surface by reactive cathodic sputtering or reactive magnetron-cathodic sputtering of aluminium or of aluminium and silicon in vacuo in a process gas atmosphere containing a rare gas and nitrogen, and by depositing the particular nitride layer from the gas phase, wherein
 (a) as the rare gas, a mixture of argon and one or more of the rare gases neon, krypton or xenon is used,
 (b) the volume ratio of argon to the other rare gases being 2:1 to 100:1 and
 (c) the volume ratio of the rare gas mixture (a) to nitrogen being 2:1 to 10:1.
Patent EP-0330117-A2 (EP)
Inventor: MUKAI NOBUHIRO
IPC: A61K6/891
Filed: 1989-02-20
Abstract: A photopolymerizable composition here disclosed is useful as a material for dental prostheses and denture-­bases, and the composition comprises an alicyclic epoxy compound as the main component, methyl methacrylate as a diluent, a cationic photopolymerization initiator, and a photosensitizer selected from perylene or naphthacene. A photocured material of the above-mentioned composition is excellent in gloosiness, wear resistance and plaque resistance.