baber/WOPTO huggingface dataset:
Patent EP-0378887-A1 (EP)
Inventor: CHEN NAI YUEN
IPC: B01J29/70
Filed: 1989-01-17
Abstract: A process for paraffinic isomerization of a hydrocarbon feedstock, which has a paraffin content having no more than 20 carbon atoms per molecule, comprises contacting the feedstock with a crystalline aluminosilicate zeolite catalyst having pore openings defined by: (1) a ratio of sorption of n-hexane to o-xylene, on a volume percent basis, of greater than 3, which sorption is determined at a P/P₀ of 0.1 and at a temperature of 50°C for n-hexane and 80°C for o-xylene and (2) by the ability of selectively cracking 3-methylpentane (3MP) in preference to the doubly branched 2,3-dimethylbutane (DMB) at 540°C (1000°F) and 101 kPa (1 atmosphere) pressure from a 1/1/1 weight ratio mixture of n-hexane/3-methyl-pentane/2,3-dimethylbutane, with the ratio of rate constants k 3MP /k DMB  determined at a temperature of 540°C (1000°F) being in excess of 2, e.g., ZSM-22, ZSM-23, ZSM-35 and mixtures thereof. The catalyst is combined with a Group VIII metal, and has a zeolite SiO₂/Al₂O₃ ratio of at least 20:1.
Patent EP-0334494-A1 (EP)
Inventor: BELTZIG GUNTER
IPC: A63G9/00
Filed: 1989-02-24
Abstract: A swing seat (10) comprising a chain (11) embedded in the resilient polymeric material (12). The polymeric material (12) having a shape on or in which a child can sit, and means to attach the chain (11) to a suspension.
Patent EP-0347106-A1 (EP)
Title: Treating aluminium workpieces
Inventor: ROSS ROBERT ANDERSON
IPC: B23K1/20
Filed: 1989-06-09
Abstract: A method of treating aluminium workpieces to improve their corrosion resistance comprises applying a coating of brazing flux, such as a potassium aluminium fluoride brazing flux, heating the coated workpiece in an inert atmosphere, and exposing the heated workpiece to an oxidizing atmosphere at a temperature of from 520 to 630 o C. Treatment may be continued for from 0.5 to 15 minutes. Treatment is preferably performed in conjunction with brazing, by exposing the workpiece to e.g. atmosphere on the cooling side of the brazing cycle.
Patent EP-0353866-A1 (EP)
Inventor: RAJ KULDIP
IPC: G11B33/14
Filed: 1989-06-30
Abstract: A bearing and magnetic fluid seal assembly includes a shaft mounted by axially spaced-apart bearings (52-54) for rotation relative to a housing (50). A magnetic fluid seal includes an annular magnet (60) axially positioned between the bearings (52-54) in the space (58) that is wasted and not utilized for any purpose, and a thin, disk-like annular polepiece (162) positioned between one of the bearings (52-54) and the environment to be protected by the seal. Magnetic flux from the magnet (60) is conducted by a magnetically permeable housing (50) or shaft (42) to an annular gap between the outside diameter of the polepiece (162) and the housing (50). A magnetic fluid (164) is retained in the gap by the magnetic flux, thereby providing an exclusion seal. Embodiments utilizing radially and axially polarized magnets are provided. A magnetic fluid seal can be provided at each end of the assembly. The bearings (52-54) supporting the shaft (42) can be magnetically permeable or nonmagnetic. The seal(s) can be electrically conducting or nonconducting depending upon the type of ferrofluid (164) used.
Patent EP-0408811-A1 (EP)
Inventor: RAATIKAINEN OLAVI
IPC: A01N63/28
Filed: 1989-07-21
Abstract: The present invention relates to a method for combatting plant diseases by treating the seed, the substrate or the vegetation with a Streptomyces griseoviridis actinomycete strain which produces aromatic heptaene-structured antibiotics.
Patent EP-0354001-A1 (EP)
Inventor: HONJO SEIICHIRO C O NIPPON SHE
IPC: C03B35/20
Filed: 1989-08-01
Abstract: An apparatus [50] for bending a glass sheet [G; g] has a heating zone [1] for heating the glass sheet [G; g], a shaping zone [3] for shaping the glass sheet [G; g], and a cooling zone [4; 8, 9] for cooling the glass sheet [G; g]. A transfer zone [2] for transferring the glass sheet [G; g] is disposed immediately before the shaping zone [3] with respect to the direction in which the glass sheet [G; g] is fed. The glass sheet [G; g] is fed through the transfer zone [2], the shaping zone [3], and the cooling zone [4; 8, 9] by a ring mold mechanism [14; 114; 214] which supports the glass sheet [G, g] from below.
Patent EP-0413860-A1 (EP)
Inventor: CRAVEN MARK EDWARD
IPC: A01B1/22
Filed: 1989-08-22
Abstract: A spoon or other like hand held implement or utensil comprises a spoon bowl (10) or other load carrying formation fixed to an inner stem (12) which also carries a pendulum weight (22). The inner stem rotates freely within a hollow outer stem (24) which is held in the user's hand and which preferably encloses the weight. In this way the spoon or the like can be used in a self-­levelling mode; when the bowl is loaded and with the handle stem held horizontally or approaching horizontal the load will be retained despite any lack of mobility or skill or the part of the user (e.g. a blind or disabled person or young child) or disturbance e.g. when used on a moving ship or vehicle. A brake or other locking means (30,32) an be selectively applied to prevent said rotation and said means may also serve to open the outer stem when shifted to another position.
Patent EP-0418441-A1 (EP)
Inventor: PIASECKI FRANK N
IPC: B64C27/82
Filed: 1989-09-21
Abstract: There is disclosed an improved structure for the shrouded propeller tail duct or "ring tail" of a rotary wing aircraft providing rotor torque counteracting aircraft yaw control forces in all flight conditions of hovering and high speed cruising flight. The rear portion of one lateral side (32) of the shrouded propeller duct comprises a plurality of overlying arcuate segments (36,37,38) that are pivotally supported for rotation relative to each other about a vertical axis between a retracted position for high speed flight in which the segments (36,37,38) are in mutually overlying position constituting one side of the duct and an extended position in which the segments (36,37,38) are in a mutually adjoining relationship with their edges only overlapping and extending obliquely transversely of the duct interior in the form of a continuous, rearwardly projecting and transversely extending arcuate extension of the interior wall of one side of the duct. This extendable elbow duct section, in combination with a vertically extending rudder vane (20) which preferably comprises a plurality of tandemly arranged sections (21,22,23,24) with pivotal connections to each other for rotation relative to one another about respective axis between a neutral position with the vane sections (21,22,23,24) in alignment and a deflected position with the vane sections (21,22,23,24) angularly arranged relative to each other in the form of an arc extending transversely of the duct forwardly of and congruent with the contour of the fully extended duct segments, provides a propeller slip stream containing and deflecting structure that smoothly deflects the slip stream from the propeller through 90 degrees with minimum turbulence when the aircraft is in a slow speed and hover flight condition.
Patent EP-0381888-A1 (EP)
Title: Improved easy open can end and method of manufacture thereof
Inventor: MCELDOWNEY CARL F
IPC: B65D17/34
Filed: 1989-10-03
Abstract: An improved easy open can end having a retained tear strip (18) extending diametrically partly across the can end defined by a score line, and a graspable pull tab (10) adjacent and outside the open end of the score line. The pull tab is attached to the can end by means of a rivet (9), the can end around the base of the rivet being deformed so as to slightly tilt the rivet (9) toward the finger end of the pull tab (10). Accordingly, initial lifting of the pull tab is fully directed to the initial fracture of the score in line (16) immediate in front of the rivet, thereby ensuring desirable venting action of internal pressure and allowing opening of the can end with less effort.
Patent EP-0330544-A1 (EP)
Inventor: MERCIER REGIS
IPC: C07D239/91
Filed: 1989-02-10
Abstract: Heat-curable quinazolone resins, their preparation and their applications. 
<??>These heat-curable quinazolone resins can be defined as corresponding to the general formula 
<IMAGE>
 in which Ar<1>2 is a monocyclic or polycyclic divalent aromatic radical and Ar is a divalent aromatic radical of a number of simple aromatic rings joined in pairs by divalent atoms or groups. 
<??>These radicals Ar<1> and Ar<2> are chosen so that the melting or softening temperature is between 80 DEG C and 170 DEG C. 
<??>The resins can be prepared by condensation of an ethynylarylbenzoxazinone with an aromatic diamine containing flexibilising groups. 
<??>These quinazolone resins can be employed, using bulk polymerisation, especially for preparing adhesives or matrices for composites.
Patent EP-0349415-A1 (EP)
Inventor: GHIS ANNE
IPC: G09G3/22
Filed: 1989-06-27
Abstract: According to the invention, activation signals are sent to the columns of the screen, in the course of the line time T, for a time which depends on the grey level i of the image point under consideration and which equals (T/N). Nil with 0 </= i </= m </= N, the Nil forming a strictly ascending sequence in i, with zero first term and with last term less than or equal to N. The Nil are chosen so as to obtain a specified distribution for the luminous intensities of the various grey levels. …<??>Application to the control of liquid-crystal or microtip matrix screens. …<IMAGE>…
Patent EP-0351322-A1 (EP)
Inventor: SANSONETTI PHILIPPE
IPC: A61P31/04
Filed: 1989-07-13
Abstract: A method for modifying a wild strain of an entero-­invasive  Shigella  to produce a modified strain of  Shigella  that can be used for making a vaccine against the wild strain of  Shigella . The genome of the wild strain of  Shigella  is transformed so that it cannot substantially invade cells of a human host and cannot spread substantially within infected cells and from infected to uninfected cells of the host and cannot produce toxins which will kill substantial numbers of the host's infected, as well as uninfected, cells. A first gene of the wild strain of  Shigella , coding for a protein necessary for the  Shigella  to invade cells of the host, and a second gene, coding for a protein necessary for the  Shigella  to spread within infected cells and between the infected and uninfected cells of the host, are mutagenized.
Patent EP-0375617-A1 (EP)
Inventor: SEIFERT GOTTFRIED
IPC: C07D239/60
Filed: 1989-12-13
Abstract: 4,6-Bis(difluoromethoxy)pyrimidines of formula I    <IMAGE>  (I) wherein R is C1-C4alkyl or unsubstituted or substituted phenyl or benzyl, are prepared by reacting a 4,6-dihydroxypyrimidine dialkali metal salt of formula II    <IMAGE> (II)  wherein R is as defined for formula I and Me is an alkali metal, with chlorodifluoromethane in a solvent selected from the group consisting of ketones and alkyl cyanides, in the presence of 0.05 to 1.1 mol of water per mol of dialkali metal salt of formula II.
Patent EP-0368835-A1 (EP)
Inventor: KEPPLINGER WERNER DIPL-ING DR
IPC: C21B13/02
Filed: 1989-10-16
Abstract: Zur Herstellung von flüssigem Roheisen durch Schmelzreduktion von Eisenerzen unterschiedlicher Korngrößen, die eine Fraktion (A) mit Korngrößen, denen Durchmesser von weniger als 0,2 mm entsprechen, enthalten, wobei das Erz mit Reduktionsgas vorreduziert, das vorreduzierte Material fertigreduziert und in einem Einschmelzvergaser (1) zu flüssigem Roheisen erschmolzen wird, wird die vorreduzierte Erzfraktion (A) durch Windsichten mit dem Reduktionsgas von einer Fraktion (B), die aus Teilchen höherer Korngröße besteht, abgetrennt und werden beide Fraktionen (A und B) getrennt fertigreduziert und der Einschmelzzone des Einschmelzvergasers (1) zugeführt. Eine Anlage zur Durchführung des erfindungsgemäßen Verfahrens besteht aus einem Einschmelzvergaser (1) und einem Reduktionszyklon (12), wobei in die Reduktionsgasleitung (9) zwischen Einschmelzvergaser (1) und Reduktionszyklon (12) ein Reduktionsreaktor (21) zwischengeschaltet ist, der ein vom Reduktionsgas gebildetes Fließbett (V ) und gegebenenfalls auch ein Festbett (VII) aufweist und austragsseitig über mindestens eine Transporteinrichtung (22', 22) für reduziertes Eisenerz mit dem Einschmelzvergaser (1) verbunden ist.
Patent EP-0350504-A1 (EP)
Inventor: MAAS JOACHIM
IPC: B60T8/36
Filed: 1988-12-05
Abstract: Es wird ein Ventilblockaggregat für ein Antiblockiersystem 
für Kraftfahrzeuge vorgestellt. Das Aggregat besteht aus einem Ven­
tilaufnahmekörper (1) und einem Deckel (2). Der Deckel ist aus 
Kunststoff hergestellt, in den Leiterbahnen eingespritzt sind. Die 
Leiterbahnen sind Teil eines Stanzteils (13). Mit dem Aufsetzen des 
Deckels (2) auf den Ventilaufnahmekörper (1) werden sämtliche 
Kontakte zwischen den Pins (18) der Spulen der Elektromagnetven­
tile (19) einerseits und den aufgestellten Enden (15) des Stanzteils 
(13) andererseits hergestellt. Mit der Erfindung wird unter anderem 
eine wesentliche Vereinfachung der Montage erzielt.  
     Abstract 
     A valve block aggregate for an anti-blocking system for motor 
vehicles comprises a valve supporting body (1) and a cover (2). The 
cover (2) is made of plastic into which strip conductors are injected. 
The strip conductors form part of a stamped part (13). When the 
cover (2) is placed on the valve supporting body (1), all the contacts 
between the pins (18) of the coils of the electromagnetic valves (19) 
on the one hand and the corresponding ends (15) of the stamped 
part (13) on the other hand are established. The invention results, 
amongst other things, in appreciably simplified mounting.
Patent EP-0396855-A1 (EP)
Inventor: SHIOZAKI ATSUSHI C O CANON KAB
IPC: B41J2/205
Filed: 1990-02-07
Abstract: A serial type liquid jet recording apparatus, including a recording head having an array of plural liquid ejecting devices (300) arranged in a column direction to eject droplets (307, 308) of recording liquid on a recording material (501); an end portion driving circuit (304) for driving one or plural of end liquid ejecting device or devices of the plural ejecting devices; a central portion driving circuit (305) for driving the rest liquid jet ejecting devices; and adjusting device (403) for adjusting a quantity of the droplet only from the end ejecting device by changing a voltage level or a pulse width of a driving voltage of the end portion driving circuit independently of the central portion driving circuit.
Patent EP-0386625-A1 (EP)
Inventor: NIEDOSPIAL JOHN J JR C O EASTM
IPC: G03B17/30
Filed: 1990-03-01
Abstract: A film cassette (1) is disclosed wherein a film spool (5) is rotatable within the cassette shell (3), a convoluted film roll (33) whose outermost convolution (35) is a film leader (35) is coiled about the spool, a pair of film constraining flanges (41, 43) are coaxially arranged on the spool to radially confine the film leader to prevent the leader from substantially contacting an interior wall (57) of the cassette shell, and a film stripper-guide (67) is received between a leading end (37) of the film leader and the next-inward convolution (39) of the film roll succeeding the leader to remove the leader from the flanges and guide it through a film passageway (25) to the exterior of the cassette shell responsive to rotation of the spool in a film unwinding direction. According to the invention, the film leader (35) and at least one of the constraining flanges (41, 43) include mutual engagement means (59, 51′) for maintaining the leading end (37) of the leader spaced at least a minimum radial distance (D) from the next-inward convolution (39) sufficient to locate the leading end within range of the stripper-guide (67) to ensure that the leading end will be advanced over the stripper-guide responsive to rotation of the spool (5) in the film unwinding direction, whereby the leading end is prevented from being advanced between the stripper-guide and the next-inward convolution.
Patent EP-0388711-A1 (EP)
Inventor: SCHUTTEN HERMAN PETER
IPC: B62D5/09
Filed: 1990-03-07
Abstract: An open-center fluid controller (15) is disclosed for controlling the flow of fluid to a steering cylinder (25). The controller includes a fluid meter (29) and valving arrangement (27), including a valve spool (43) and a sleeve (45), which define a main fluid path. The main path includes a fixed flow control orifice (86), a variable flow control orifice (87), the fluid meter (29), and a variable flow control orifice (89). In accordance with the invention, the spool and sleeve define an amplification fluid path (101), including a variable amplification orifice (99), in parallel with the main fluid path, and disposed to amplify the flow of fluid through the meter (29). In order to facilitate manual steering, the amplification orifice (99) reaches its maximum flow area when the spool and sleeve are in a normal operating position (FIG. 6). The amplification orifice then decreases and closes as the displacement between the spool and sleeve reach a maximum displacement (FIG. 7). As a result, the amplification fluid path (101) is closed at maximum valve displacement, thus making it possible to manually steer the vehicle.
Patent EP-0431321-A1 (EP)
Inventor: O'BRIEN PATRICK MICHAEL
IPC: A61K31/4418
Filed: 1990-11-05
Abstract: This invention relates to novel compounds which are ACAT inhibitors rendering them useful in lowering blood cholesterol levels. The compounds are carbamates represented by the general formula
     wherein Ar and Ar represent phenyl, naphthyl or heteroaryl, each of which may be substituted; Z and W are hydrogen, aliphatic hydrocarbon, heterocyclic, aryl or carbocyclic containing groups. This invention also relates to a process for preparing the new compounds and to pharmaceutical compositions containing them.
Patent EP-0435165-A1 (EP)
Inventor: ONO HITOSHI
IPC: G03G5/06
Filed: 1990-12-20
Abstract: An electrophotographic photoreceptor comprising an electrically conductive support and a photosensitive layer formed thereon, wherein said photosensitive layer contains an arylamine compound of the formula (I):
       
 wherein each of Ar¹, Ar², Ar³ and Ar⁴ which may be the same or different, is an aryl group which may have substituents, or a heterocyclic group which may have substituents, each of R¹, R², R³, R⁴, R⁵ and R⁶ which may be the same or different, is a hydrogen atom, a hydroxyl group, a halogen atom, an alkyl group which may have substituents, an alkoxy group which may have substituents, or a phenyl group which may have substituents, and each of R⁷ and R⁸ which may be the same or different, is a hydrogen atom, a halogen atom, an alkyl group which may have substituents, or an alkoxy group which may have substituents.
Patent EP-0445428-A1 (EP)
Inventor: BAUER HANS JUERGEN
IPC: D06F37/20
Filed: 1990-12-22
Abstract: A frictional vibration damper, in particular for washing machines with an oscillatory support of a washer unit has an approximately tube-shaped housing and a tappet displaceable in it. An articulation element is provided at the outer end of each the housing and the tappet. Further, a friction piston bearing with a friction coating on the internal wall of the housing is formed on the tappet, which friction piston is extendable by means of a linearly operating servomotor. In order to achieve high safety in operation at little expenditure, the servomotor is arranged in the tappet. It is formed by an electrically heatable thermoactuator element having a housing with a piston which changes its position relative to the housing upon heating. The piston of the servomotor directly bears against an expansion member serving to expand the friction piston.
Patent EP-0437840-A1 (EP)
Inventor: SAITO YUKIHIRO
IPC: A61K36/16
Filed: 1990-12-28
Abstract: An aqueous solution containing ginkgo-leaf extract with high concentration having good preservability is provided. The aqueous solution containing ginkgo-leaf extract comprises at least 1 weight % of a hydrous organic solvent extract obtained from ginkgo-leaf, and further disaccharide alcohols and/or trisaccharide alcohols, and/or organic compounds having a basic nitrogen atom in the molecule and a solubility to water at normal temperature of at least 10 g/100 ml.
Patent EP-0447691-A1 (EP)
Inventor: LEONARD JACQUES VICTOR
IPC: G03B27/50
Filed: 1990-03-21
Abstract: A scanner having a carriage with a glass plate for supporting an original document to be scanned past an exposure opening, wherein the glass plate (52) is vertically displaceable in a frame (47) of the carriage and is downwardly biased into contact with two guide wheels (71, 72) that are provided near the lateral ends of the exposure opening.
Patent EP-0381505-A1 (EP)
Inventor: KOBAYASHI KATSUYUKI
IPC: F16D47/06
Filed: 1990-02-01
Abstract: A control coupling for torque transmission between a pair of rotary members coaxially arranged for relative rotation, which includes a cylindrical casing mounted on one of the rotary members for rotation therewith, a friction clutch assembled within the casing, a piston axially slidably coupled within the casing for rotation therewith and being in engagement with the friction clutch, an end wall member coupled with the casing for rotation therewith and spaced from the piston to form a fluid chamber filled with an amount of viscous fluid, and a rotor disposed in the fluid chamber and mounted on the other rotary member for rotation therewith. The rotor has a plurality of radial blades extending radially outwardly therefrom and being disposed between the piston and the end wall member. The radial plates each have a base portion thickened in an axial direction to increase the amount of viscous fluid stored in the fluid chamber and an outer end portion formed thinner than the base portion, and each internal surface of the piston and end wall member exposed to the fluid chamber is formed to correspond with the opposite surfaces of the radial blade.
Patent EP-0411831-A1 (EP)
Inventor: NEWTON THOMAS ALEXANDER JR
IPC: B28D1/18
Filed: 1990-07-26
Abstract: A preform cutting element or rotary drill bit for use in drilling or coring holes in subsurface formations includes a cutting table (12, 13) of superhard material such as polycrystalline diamond. The rear face of the cutting table is bonded to a substrate (11) of less hard material, such as cemented tungsten carbide. A front portion (12) of the cutting table comprises a form of superhard material which is less wear-resistant than the superhard material forming the remainder (13) of the cutting table. The provision of the less wear-resistant superhard material at the front cutting faces reduces the tendency of the cutting table to spall.
Patent EP-0422901-A1 (EP)
Inventor: MIZUNO TOMOHISA C O INTELLECTU
IPC: H01L21/336
Filed: 1990-10-09
Abstract: An MOS field effect transistor is of a lightly doped drain structure. In the transistor, an insulation layer (15) is located on the side wall of a gate elec­trode (13). This insulation layer is formed of tantalum oxide, which has a high dielectric constant. Between this insulation layer and a drain region (D), another insulation layer (14) is formed such that it has a thickness sufficiently greater than the length of the mean free path of the hot carriers which are generated in the vicinity of the drain region.
Patent EP-0446530-A1 (EP)
Inventor: YANUSKO DAVID
IPC: F16C1/12
Filed: 1990-12-19
Abstract: A motion transmitting remote control assembly (10) is of the type for transmitting forces in a curved path by a flexible motion transmitting core element (18). The assembly (10) comprises a first actuator (12) and a second actuator (14). The first actuator (12) is disposed adjacent the output (35) and comprises a first drive member (24), a first handle (32) and a clutch (36) all coaxial about the first input shaft (30). The clutch comprises a pin (38) which coacts with two concentric slots in the first drive member (24). A spring (42) biases the pin (38) into the two concentric slots so the pin (38) will engage the two concentric slots when they are aligned.