baber/WOPTO huggingface dataset:
Patent EP-0500670-A1 (EP)
Title: Method for halide etching in the presence of water of semi-conductor substrates.
Inventor: WESTENDORP JOHANNES FRANCISCUS
IPC: H01L21/311
Filed: 1990-11-02
Abstract: A process for halide etching of a semi-conductor substrate in the presence of water. Etching is realized in a reaction vessel. The process steps comprise filling of the reaction vessel with a first gas to a first pressure and subsequently filling the reaction vessel with a second gas to a second pressure after which the substrate is left in the reaction vessel for several minutes to obtain the etching required. One of the gases is HF and the other of the gases is water vapor. The etching is conducted at sub-atmospheric pressure, preferably below 50 Torr.
Patent EP-0468000-A1 (EP)
Inventor: ELLIOTT DONALD A
IPC: B23K1/008
Filed: 1990-12-05
Abstract: L'invention se rapporte à un tunnel (10) pour le soudage sans décapant, qui se présente sous la forme d'un tunnel linéaire rectiligne (10) contenant une atmosphère gazeuse non explosive. L'atmosphère gazeuse contient une petite quantité d'hydrogène ou de tout autre agent réducteur gazeux, en suffisance pour produire une action de fluxage. Un procédé de soudage d'un élément (18) à souder dans un tel tunnel consiste à acheminer l'élément (18) le long d'un tunnel (10) contenant une atmosphère gazeuse non explosive sensiblement exempte d'oxygène, à chauffer l'élément (18) dans le tunnel (10), à souder l'élément (18) et à retenir l'élément (18) dans l'atmosphère gazeuse du tunnel (10) jusqu'à solidification de la soudure sur l'élément (18).
Patent EP-0443332-A1 (EP)
Inventor: AMANO CHIKARA
IPC: H03K19/14
Filed: 1991-01-22
Abstract: An optical gate array includes a photodetector (203), an optical modulator (201), and a reflecting structure (202) arranged therebetween. The photodetector (203), the optical modulator (201), and the reflecting structure (202) are composed of semiconductor materials. The photodetector (203) includes an MQW (Multi Quantum Well). The reflecting structure (202) is constituted by a distributed Bragg reflector formed by alternately stacking semiconductor layers having different refractivities. The photodetector (203) and the optical modulator (201) are arranged to receive light from different directions. The modulation characteristics of the optical modulator (201) are controlled by the intensity of light radiated on the photodetector (203). The reflecting structure (202) connects the photodetector (203) and the optical modulator (201) electrically and isolates lights radiated on both parts. A pluarlity of optical gates, each constituted by the photodetector (203), the optical modulator (201), and the reflection structure (202), are two-dimensionally arranged.
Patent EP-0443381-A1 (EP)
Inventor: KONDO SADAO
IPC: A61K9/46
Filed: 1991-02-08
Abstract: The present invention provides a water-soluble effervescent composition prepared by hot-melting (i) an active component and (ii) an acid and a carbonate for effervescing, both in powdery or granular state, with (iii) a water-soluble adjuvant whose melting point is not lower than 40°C, for addition to drinking water.
Patent EP-0500974-A1 (EP)
Inventor: SANDERS EDGAR S JR
IPC: B01D53/22
Filed: 1991-02-25
Abstract: The invention is a process for separating hydrogen from gas mixtures using a semi-permeable membrane consisting predominantly of polycarbonates derived from tetrahalobisphenols such as tetrabromobisphenol.
Patent EP-0462536-A1 (EP)
Inventor: SANO MASAMICHI
IPC: C22B9/04
Filed: 1991-06-17
Abstract: A melt (2) is stored in a vessel (5) placed in a decompression vessel (10). On the bottom of the vessel is arranged a bubble generator (9) made of porous bricks, and bubbles of argon gas are introduced into the melt through this bubble generator. Also a lower half section of a degassing member is immersed in the melt. This degassing member (6) has a cylindrical form with the lower end closed and the section immersed in the melt is made of a porous material permeable to gases and impermeable to melts. 
     With these features, a surface of molten metal can be put under reduced pressure and high content components of the melt can be removed by means of bubbling, and also solute components in the melt can be removed into bubbles of argon gas. Also, gases in the melt and gases produced by reactions between the melt and the porous material can be sucked through a wall of the degassing member into inside thereof and removed.
Patent EP-0467255-A1 (EP)
Inventor: KUNZE ERWIN
IPC: E01C19/46
Filed: 1991-07-15
Abstract: The invention relates to a motorised laying vehicle (1) for surfacing roads or paths using the cold-mixed asphalt paving technique. The vehicle can be controlled from a driver's cab (4) and consists of a number of storage tanks, which are arranged on the vehicle chassis (2), for a bitumen emulsion (11), for mineral chippings (13), for water (12), for cement (19) and for additives or wetting agents (17), and of mixing (M) and transport devices (T) for preparing the mixture and transporting it to a distribution and feeding box (24). <IMAGE>
Patent EP-0485767-A1 (EP)
Inventor: KUHNT ERHARDT
IPC: E05B5/02
Filed: 1991-10-22
Abstract: The invention is aimed at a lock on sliding wings which are movable relative to fixed frames. A linkage is guided in a longitudinally movable manner on the wing frame and can be operated by a handle arranged countersunk there. In order to guarantee a comfortable and easy actuation of the handle, it is proposed to make the handle axially movable in the direction of its control bolt, so that it can be transferred between a push-in and push-out position in relation to the wing. The control bolt is used as a rotary axle for the actuation of the handle and is connected directly or indirectly by the handle fixedly in terms of rotation, but axially displaceably to an edge gear engaging on the linkage. <IMAGE>
Patent EP-0482597-A1 (EP)
Inventor: FALTER RITA
IPC: B65F1/00
Filed: 1991-10-23
Abstract: For separately depositing or sorting different materials, especially domestic refuse, a plurality of complementarily shaped containers (1) are provided which can be assembled to form a compact unit from a plurality of containers (1). The containers preferably have a triangular or trapezoidal ground plan, and when viewed from the side the containers are preferably of substantially trapezoidal design. 
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Patent EP-0490403-A1 (EP)
Inventor: TORISAWA NOBUYUKI
IPC: B65H3/44
Filed: 1991-12-13
Abstract: Disclosed herein is a device for feeding sheets, one by one, to an automatic photographic processor or the like. The sheet feeding device basically comprises a suction pad (14) for taking out an uppermost sheet (12) of stacked sheets (12) stored in a sheet placement unit (11), a delivery mechanism (18) for delivering the uppermost sheet (12) to a sheet discharge port (16), a shutter mechanism (20) used to open and close the sheet discharge port (16), a sheet insertion slot (22) for directly introducing an extra sheet (12a) other than said stacked sheets to the sheet discharge port (16), a cover capable of opening and closing the sheet insertion slot (22), a magazine capable of accommodating a roll of sheet therein and capable of being disposed in the sheet insertion slot (22), a swingable plate having one end coupled to a drive source and the other end brought into engagement with the shutter mechanism (20) so as to open and close the shutter mechanism (20), and a sensor for detecting angular positions of the swingable plate (70).
Patent EP-0492437-A1 (EP)
Inventor: SHIRAISHI KAZUO
IPC: G02F1/09
Filed: 1991-12-19
Abstract: A polarization independant optical isolator comprising, a first optical system (5,6) for splitting the incident light into two polarized components for incidence on the optical isolator unit, an optical isolator unit (4) having a structure depending on a plane of polarization of incident light, and a second optical system (7,8) for combining the two polarized components emerging from the optical isolator unit. The optical isolator can thus manifest an excellent effect of isolation without considering the plane of polarization of the incident light.
Patent EP-0448172-A1 (EP)
Inventor: VERWEIJ HENDRIK
IPC: H01J5/46
Filed: 1991-03-20
Abstract: High-pressure discharge lamp having a closed discharge vessel (1) of translucent sintered aluminium nitride in which electrodes (2,3) are arranged each connected to a respective current lead-through (4,5). The current lead-throughs (4,5) consist of molybdenum and/or tungsten.
Patent EP-0453039-A1 (EP)
Inventor: VAN ECK ARNOLDUS HUBERTUS MARI
IPC: H01J29/48
Filed: 1991-04-15
Abstract: A cathode ray tube comprising an electron gun having a number of electrodes with securing members and a number of supports of electrically insulating material, said supports and electrodes being interconnected by means of serrated clamping members. By virtue hereof, the microphonic behaviour of the electron gun is improved.
Patent EP-0492713-A1 (EP)
Inventor: KOLBERG THOMAS
IPC: C23C22/83
Filed: 1991-12-17
Abstract: Conversion coatings on metal surfaces, especially of steel, galvanised steel, alloy-galvanised steel and/or aluminium, are rinsed, in preparation for painting or the application of adhesives, with an aqueous solution which contains Ce(IV) and/or Ce(III) in a total quantity from 0.01 to 1.0 g/l and has a pH from 3 to 6. Preferably, a rinsing solution is used which contains Ce(III) and Ce(IV) in a weight ratio from 9 to 2:1 and, if appropriate, also molybdate and/or tungstate. Preferred applications of the process serve for preparing metal surfaces provided with conversion coatings for subsequent electrodip-painting, in particular cathodic electrodip-painting, or for rinsing metal surfaces which, as conversion coatings, have phosphate layers, layers based on Zr and/or Ti, F and, if appropriate, PO4 and produced by chromium-free acidic processes, or complex metal oxide layers.
Patent EP-0444796-A1 (EP)
Inventor: OSWALD JOHN MATTHEW
IPC: G01R17/20
Filed: 1991-02-13
Abstract: A potentiometric circuit arrangement 30 (Fig. 2) is based on a resistive potentiometer track II with a capacitively coupled 'wiper' 14', the resistive track being driven by switched alternating voltages of +/- V at 12 and -/+ (X-V) at 13, where X is a reference voltage and V is the output of an integrator 15 to which the voltage sensed by the electrode 37, and rectified at 36, is applied. A null voltage point establishes itself at the position of the electrode and stabilises the integrator output at a d.c. voltage proportional to the distance of the 'wiper' from the track end 12. Any 'wiper' displacement taps a non-null signal which integrated applies new voltages to the track until the null point is re-established at the 'wiper' position. The capacitive pick-off enables a potentiometer-type voltage output with less wear of the track, less drag against motion and less electrical noise, and electronic differentiation (27) of the position signal to give a rate signal. The arrangement is suited to use as an angle and rate sensor in a gyroscope 70.
Patent EP-0463719-A1 (EP)
Inventor: ANGELL RICHARD B
IPC: H04N5/268
Filed: 1991-04-23
Abstract: A multiple video preview system for a production video switcher or digital effects device compresses (10-16) a plurality of input video signals taken from various points along a video path through the switcher or effects device. The compressed input video signals are stored (18-26) in a display memory (20) in respective designated regions. The display memory is read out (22-40) in a raster scan manner. The readout of a portion of the display memory occurs simultaneously with the storing of the compressed input video signals occurs in another portion of the display memory to provide a realtime video output signal that includes each input video signal in a compressed form. The video output signal is input to a monitor to display the input video signals simultaneously.
Patent EP-0475813-A1 (EP)
Inventor: LALANNE BERNARD
IPC: F01D5/30
Filed: 1991-09-02
Abstract: The invention provides a turbomachine wheel having blades (12) attached to a rotor (10) comprising an annular peripheral ring (18), in which are formed open axial receptacles (20), each of which receives the foot (22) of a blade (12) which is retained there radially by complementary shape interaction (25) of the fir-shaped foot type with an engagement direction parallel to the axis (X-X) of the rotor (10) and which is immobilised there axially by two flanges (28, 30) arranged on either side of the opposite lateral faces (24, 26) of the rotor and at least partially closing off the opposite axial ends of the receptacles (20) of the feet (22) of the blades (12). According to the invention, a first flange (28) is fastened to the rotor (10) by means of a bayonet-type device, the pins (32) of which are formed on the flange (28) and are received in notches (40) which are formed in the annular ring (18) of the rotor (10) and of which the open ends (44) for the engagement of the pins (32) open out into the transverse walls delimiting the receptacles (20) of the feet of the blades (12), and the second flange (30) is held clamped there by an axial-clamping collar (78) mounted in a prestressed manner. …<IMAGE>…
Patent EP-0484206-A1 (EP)
Inventor: GATELLIER BERTRAND
IPC: F02M25/07
Filed: 1991-10-23
Abstract: The method essentially consists in returning a greater or lesser proportion of the burnt gases back into the cylinders during the fresh gas induction phase. This is achieved by equipping each cylinder (1) with a bypass duct (7) connected to it by way of an auxiliary induction valve (8), the opening period of which straddles the top dead centre, and to the induction pipe (6). A throttle or throttle chamber (9) allows the rate of flow of burnt gas recycled on induction to be controlled as a function of the operating conditions of the engine. In this way both a reduction in the noxious subtances and an improvement in the power output of the engine are achieved. 
<??>Application mainly to four-stroke spark ignition engines. 
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Patent EP-0490730-A1 (EP)
Inventor: MICHEL ROBERT
IPC: F16H61/30
Filed: 1991-12-05
Abstract: The present invention relates to a motorised control device for changing the gear ratios in a gearbox having staged ratios and a neutral (PM), especially for motor vehicles, of the type comprising a first actuator (100), a linkage (200), in which a second actuator (700) is provided which is associated with an output element (500) of a linkage (200) for manoeuvring said output element (500). The first actuator (100) is a hydraulic jack suitable for rotatably driving the receiving element (600). The second actuator (700) is a hydraulic jack suitable for driving the output element (500) for displacing the receiving element (600). The second actuator (700) is associated with an intermediate element (400) which can be deformed and is equipped with an energy accumulator (706), so that for passage with selection of gears the said second actuator (700) compresses the energy accumulator (400), then, after moving the receiving element, under the action of the first actuator (100), to a neutral position, makes a relaxation (release) of the said energy accumulator possible.   Application to motor vehicles. <IMAGE>
Patent EP-0474567-A1 (EP)
Inventor: MOURET MICHEL
IPC: H03M1/20
Filed: 1991-08-14
Abstract: The present invention relates to an N-bit interpolating analog/digital converter comprising a first stage of p comparators (C1...Cp) whose outputs are associated in groups of comparators which are offset by a given increment r, the combined output (S1a, S1b) of each group having the form of a signal varying periodically between high and low levels. The output voltages of each group are compared in the vicinity of their transition in second stages (I1...Ir) each of q+1 comparators (p[q+1] = 2<N>). Each comparator of the first stage is a high-linearity comparator comprising two branches each comprising a first and a second transistor (T101, T102, T103, T104), the base of the second transistor of each branch being connected to the junction point of the transistors of the other branch by way of a voltage-offsetting means (E1, E2), and the emitters of the second transistors of each branch being interconnected by a resistor (RES). 
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Patent EP-0523309-A1 (EP)
Inventor: ALBERTO PIETRO
IPC: D06Q1/08
Filed: 1991-07-19
Abstract: The method for obtaining special permanent dry embossing effects on fabrics, while decatizing, provides for adding, as a third member wrapped around a roll to be fed into an autoclave, besides the fabric to be processed and the decatizing cloth or supporting process cloth, a further embossed fabric or laminate of a material whatsoever, provided that it is permeable to enable steam to flow therethrough. A "sandwich" assembly is then formed, not necessarily wound up into a roll, for continuous cycle decatizing machines. Advantageously, the fabric to be processed will be soaked with chemicals, of the bisulphite family, which will have to be used in order to get the above mentioned effects in case of a normal non-autoclave, free decatizing.
Patent EP-0490850-A1 (EP)
Inventor: HOLMIN MATS CORNELIUS
IPC: B25F5/02
Filed: 1991-11-29
Abstract: A vibration insulated power tool handle, comprising a tubular grip portion (10), a mounting means (11) for rigid mounting on a tool housing, and an elastic vibration insulating leaf spring membrane (12) interconnecting the grip portion (10) and the mounting means (11). The spring membrane (12) is formed with a central opening (19) for receiving a screw (21) of the mounting means (11) and is connected by its peripheri to a socket portion (16) on the grip portion (10).
Patent EP-0506690-A1 (EP)
Inventor: FISCHER FLORIAN
IPC: C30B31/10
Filed: 1990-12-19
Abstract: La présente invention se rapporte à un système de transport pour récipients (11) ou matériaux à l'intérieur et le long d'un tube sensiblement vertical (5, 6), les récipients (11) tournant simultanément autour de l'axe du tube. Afin de permettre une construction simple, malgré le manque d'espace, il est proposé de concevoir le tube comme tube tournant vertical (5) prolongé, à l'extrémité de la voie de transport, d'une douille filetée (6) maintenue de manière à résister à la torsion. Dans le tube tournant sont prévues des rainures de guidage (15) orientées dans le sens longitudinal, dans lesquelles s'engagent les becs (14) des récipients. Ces becs (14) s'engagent également dans la rainure filetée (16) de la douille filetée (6). Les récipients (11) présentent sur leurs parties supérieure et inférieure des accouplements, p. ex. une denture droite (13), lesquels transmettent, lors du transport d'un train de récipients (11) placés bout à bout, un mouvement de rotation de récipient à récipient, mais lesquels permettent aussi une séparation des récipients (11) entre eux en direction de l'axe du tube. Lorsque le tube tournant (5) effectue une rotation, les récipients sont vissés successivement au travers de la douille filetée (6), laquelle reçoit au moins un récipient (11). Ce système de transport est particulièrement apte à transporter des cristaux de silicium se trouvant dans le récipient (11) à travers le réservoir d'eau lourde (2) d'un réacteur de recherche afin de doper les cristaux de silicium par bombardement avec des neutrons.
Patent EP-0516645-A1 (EP)
Title: A method of tyre cord sheet construction.
Inventor: INGUS GEORGE ALEXANDER
IPC: B60C9/04
Filed: 1991-02-13
Abstract: PCT No. PCT/GB91/00218 Sec. 371 Date Oct. 26, 1992 Sec. 102(e) Date Oct. 26, 1992 PCT Filed Feb. 13, 1991 PCT Pub. No. WO91/12361 PCT Pub. Date Aug. 22, 1991.A method of woven webs comprising tire cord splicing headers or tabbies can be stabilized against lateral (weft) distortion without the need for temples, by incorporating reinforcing weft strands of a stiff resilient yarn, i.e. a composite yarn comprising a stiff resilient core mantled with fibers, i.e. staple fibers applied by a core spinning technique.
Patent EP-0514482-A1 (EP)
Inventor: LIU KOU-CHANG
IPC: C08F290/00
Filed: 1991-01-30
Abstract: Carbonates d'éther d'alcényle ayant la formule (I) dans laquelle A représente RHC=CHO(B)n-, alkyle inférieur ou un mélange de ceux-ci; B représente un radical divalent comportant 2 à 12 atomes de carbone et il est sélectionné dans le groupe de radicaux alkylène, alkylène mono ou polyalcoxylé, alcénylène, alkynylène, arylène, alcarylène et aralkylène, lesdits radicaux étant facultativement remplacés par halo, alkyle, ciano, nitro ou alcoxy; R représente hydrogène ou alkyle inférieur et n est compris entre 1 et 10. L'invention concerne également du polycarbonate d'éther d'alcényle, un composé polymérisable formé à partir d'une réaction entre un monocarbonate d'éther de dialcényle et un alcool polyhydroxy comportant au moins trois groupes hydroxy, un composé polymérisable formé à partir de la réaction entre un polyéther polymère hydroxylé, du polyuréthane, du polycarbonate, un polyester d'un acide alcanedioïque ou un polybutadiène et un co-réactant de carbonate de dialcényloxy, et des éthers de polyaryloxypolyvinyle. Les composés polymérisés sont des intermédiaires destinés à des films et à des revêtements résistants à l'abrasion dure. Les monomères et les oligomères sont des intermédiaires pour des hydrogels ou des agents de réserve.
Patent EP-0517771-A1 (EP)
Inventor: STEVENS HOWARD NORMAN ERNEST
IPC: A61K9/48
Filed: 1991-03-01
Abstract: A pulsed release capsule suitable for human oral administration having a water-impermeable external surface and an orifice closed by a plug through which orifice the capsule contents are to be released in the human body characterised in that the capsule and plug together form a cavity and the orifice is plugged with a water-soluble or water erodible plug composed of a pharmaceutically acceptable material which dissolves or erodes after a time in the human body to allow pulsed release of the capsule contents wherein the area of water soluble or erodible material sufficient to allow the rapid ingress of water into the cavity when the material has dissolved or eroded and wherein the plug is other than precompressed.
Patent EP-0521987-A1 (EP)
Inventor: KNIGHT ROBERT JOSEPH
IPC: F16F7/10
Filed: 1991-03-27
Abstract: Moyen d'atténuation de vibrations utilisé notamment dans le montage de moteurs et de suspensions de véhicules, conçu pour atténuer les vibrations produites par un corps vibratoire (5). Il est constitué d'un levier (2) pourvu d'une masse ou d'un poids (1) à l'une de ses extrémités et relié à l'un des corps (5) par l'intermédiaire d'un élément de liaison (6) situé en position intermédiaire le long du levier. L'autre corps (7) est fixé au levier (2) au moyen d'un élément de liaison (3, 4) situé vers l'extrémité éloignée de la masse (1), au moins l'un des éléments de liaison (3, 4, 6) étant élastique. Cette disposition permet de créer un système résonant accordable à l'intérieur de l'ensemble et l'atténuation s'effectue selon des fréquences situées au-dessus de la fréquence de résonance du système.
Patent EP-0527807-A1 (EP)
Inventor: SUOVANIEMI OSMO
IPC: B01L3/02
Filed: 1991-05-03
Abstract: Procédé de remplissage et de vidage d'une pipette avec une précision quantitative, dans lequel la distance parcourue par un plongeur (3) est mesurée à mesure que ledit plongeur est déplacé, ce dernier étant stoppé lorsque le déplacement correspondant à la quantité voulue de liquide à transférer a été effectué; pipette comprenant un moyen de mesure (14, 23, 24) permettant de mesurer le déplacement du plongeur (3) et moyen de commande (13) permettant de commander les mouvements du plongeur.