baber/WOPTO huggingface dataset:
Patent EP-0315814-A2 (EP)
Inventor: FRISCH ELDON EUGENE
IPC: A61F2/06
Filed: 1988-10-21
Abstract: A method of making a polymeric body having a porous surface by a) applying a fluid polymeric composition to a mold surface of a leachable foam having open pores thereon, b) curing the composition to form the polymeric body, and c) leaching the foam from the polymeric body with a suitable solvent which does not dissolve the polymeric body. The method is especially suitable for making porous silicone elastomer bodies by using polystyrene foam as the mold material and the method is useful for forming hollow, porous-surfaced polymeric bodies, e.g. mammary and vascular prostheses.
Patent EP-0318951-A2 (EP)
Inventor: OGURA MASAHIKO
IPC: G03G15/047
Filed: 1988-11-30
Abstract: An electronic copier comprises a corona charger (22) having a charging wire for uniformly charging the surface of a photoconductor and a shield case for receiving the charging wire; a charge eliminator (18) for emitting light onto a non-image area of the photoconductor to remove charges from the non-image area; a cleaning unit having cleaning members (21, 23) for simultaneously wiping the charging wire and the light emitting faces of the charge eliminator; a driving motor (24) for moving the cleaning members (21, 23); and a microcomputer control portion for counting and cumulating the number of copies of every copying operation, and activating the driving motor (24) to operate the cleaning members (21, 23) as well as resett­ing the counted and cumulated number of copies to zero, if the counted and cumulated number of copies is equal to or larger than a predetermined value after the completion of each series of copying operation.
Patent EP-0289298-A2 (EP)
Inventor: KAO JAMES TZU FEN
IPC: C07C215/76
Filed: 1988-04-28
Abstract: A process for the purification of crude 4-aminophenol which was prepared by the catalytic hydrogenation of nitrobenzene in aqueous sulfuric acid is described involving: adjusting the pH of an aqueous solution of crude 4-aminophenol to pH 4.0-5.0 at a temperature between 75°C and 85°C; mixing the aforesaid solution with toluene as the solvent, in order to extract various impurities and the dissolved nitrobenzene starting material; adjusting the pH of the resultant solution as required to maintain it at pH 4.0-5.0; allowing the resultant mixture to settle thereby forming a top organic layer and a bottom aqueous raffinate layer which raffinate contains 4-aminophenol and the by-product material, ortho-aminophenol; separating the two layers and repeatedly extracting the raffinate layer with toluene at pH 4.0-5.0 at a temperature of 75-85°C until most impurities have been removed from the resultant final raffinate; adding to the resultant raffinate, a charcoal decolorizing agent and a sodium sulfite type salt, which are then removed, leaving a filtrate which contains the 4-aminophenol and also the by-product ortho-aminophenol; adjusting the pH of said filtrate to pH 6.5-8.0 and cooling it to a temperature below 10°C; separating the precipitated pure 4-aminophenol from the by-product ortho-aminophenol which remains in the solution.
Patent EP-0297881-A2 (EP)
Inventor: ALTMAN DENIS JAMES
IPC: G21C19/02
Filed: 1988-06-28
Abstract: An integrated head package (41) for a nuclear reactor has a pressure vessel closure head (43) with control rod drive mechanisms (45) thereon enclosed in a shroud (51), and a plurality of vertical lift rods (55) secured to the vessel head (43) with a missile shield plate (69) extending between the lift rods (55) and vertically slidably retained between spaced stop members (73, 73′) adjacent the upper ends (65) of the lift rods (55). A lift ring (105) is secured to the missile shield plate (69), preferably through attachment to support blocks (81) secured to the upper surface of the plate (79). Impact forces of a missile against the lower surface of the missile shield plate (97) are transferred to a lifting force and are not transferred to the lifting rods (55), head lugs (21), closure stud (25) and pressure vessel supports.
Patent EP-0316251-A2 (EP)
Inventor: BEUKEMA BRUCE LEROY
IPC: G06F13/14
Filed: 1988-09-13
Abstract: Control panel function is provided to bus units (12,14,16) coupled together by an I/O bus. At least one bus unit (12) has the capability to issue control commands through the bus to one or more other bus units. A control facility (26, 28) is integrated into bus units, and makes full use of existing paths to processor registers and main storage. Control commands are distinguished from other bus communications, and executed by the control facility, to provide a full control panel function for each bus unit incorporating the control facility.
Patent EP-0298074-A2 (EP)
Inventor: VOEST-ALPINE INDUSTRIEANLAGENB
IPC: C21B7/14
Filed: 1988-06-23
Abstract: The plant has a casting vessel (2) provided with a pouring spout (6) which is to take the molten metal/metallurgical slag mixture and which is pivotable about an approximately horizontal pivoting axis (29), and a slag casting mould (5). For reliable prevention of molten metal running off with the molten slag when the latter is poured out onto the slag casting mould (5), with the lowest possible expenditure on equipment, provision is made between the pouring spout (6) of the casting vessel (2) and the slag casting mould (5) for a pivotable casting channel (7) which can be pivoted from a slag-casting position (A), in which the metallurgical slag is taken from the pouring spout (6) via the casting channel (7) to the slag-casting mould (5), into a metal-casting position (B), in which molten metal is taken from the pouring spout (6) to a molten metal receiver vessel (17). <IMAGE>
Patent EP-0335100-A2 (EP)
Inventor: KIM BANG MO
IPC: B29C43/36
Filed: 1989-02-20
Abstract: A mold structure comprising layers with different physical properties is used to provide hot surface during molding. The use of a thin layer of low thermal conductivity (15) covered by a smooth skin layer (17) prevents quick cooling of the surface of the preheated plastic to be molded. The plastic surface remains molten and flow to fill the mold during press closing, resulting in smooth surfaces even when fiber reinforced plastics are used.
Patent EP-0341402-A2 (EP)
Inventor: RICHARDSON HUBERT JR
IPC: F04C23/00
Filed: 1989-03-22
Abstract: A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing (12) a fixed scroll member(48), an orbiting scroll member (50), a main bearing frame member (52), and a crankshaft (32). An oil sump (36) is located in a discharge pressure chamber (110) in the housing. The frame member and fixed scroll member define a suction pressure chamber (98) in which the orbiting scroll member is disposed. The crankshaft includes a plate portion (76) disposed between the orbiting scroll member and a thrust surface (160) of the frame. Flexible annular seals (174, 178) are disposed within respective interfaces (166, 168) between the orbiting scroll member bottom surface and the plate portion top surface (162), and between the plate portion bottom surface (164) and the frame thrust surface. The seals provide sealing between a radially inner, oil-filled discharge region (154, 158) and a radially outer suction region (98), and actuate to compensate for axial space in the interfaces.
Patent EP-0342340-A2 (EP)
Inventor: ROTHER WOLFGANG DIPL-ING
IPC: B04C5/02
Filed: 1989-03-28
Abstract: Schwebegas-Wärmetauscher für einen Wärmeaustausch zwischen Gas und Feingut. Er enthält eine Anzahl von übereinanderliegenden, etwa vertikalachsig ausgerichteten Abscheidezyklonen (1 bis 4), bei denen die Deckwände (9,91) und die Eintrittsstutzen (1a,11) der im wesentlichen geraden Zyklonoberteile unter einem spitzen Winkel (α) zur Horizontalen (H) geneigt sind. Dies trägt zu einem besonders einfachen, raumsparenden Gesamtaufbau sowie zu einer günstigen Gutabscheidung bei relativ geringem Druckverlust bei.
Patent EP-0335403-A2 (EP)
Inventor: MOTONO MASAHIRO
IPC: A61K8/20
Filed: 1989-03-30
Abstract: Disclosed is a hair-dyeing composition comprising one or more tannins and one or more compounds selected from water-soluble zinc, copper, tin, magnesium and aluminum salts. The composition may be in the form of either a one-solution-type or a two-solution-type. The composition may dye hair in any desired color, and the color fastness of the dyed hair is excellent.
Patent EP-0337416-A2 (EP)
Inventor: SEBALD RICHARD C O GRUNDIG E M
IPC: G02B7/00
Filed: 1989-04-12
Abstract: In order to protect them against high temperatures, camera and camera lens are accommodated in a detector housing cooled by water and/or air. The detector housing is observed to burn out in practice owing to the air or vapour bubbles jammed in the coolant flow. For the purpose of completely cooling all the regions of the detector housing, the latter has hollow chambers through which the coolant is conducted by force. The cooled detector housing is preferably used in remote observation in combustion chambers, or in industrial production processes in which particularly high temperatures occur. <IMAGE>
Patent EP-0340808-A2 (EP)
Inventor: BANERJEE CHANDRA KUMAR
IPC: A24D1/22
Filed: 1986-07-14
Abstract: The present invention relates to a smoking article, preferably in cigarette form, which produces an aerosol that resembles tobacco smoke. The article preferably comprises a short combustible fuel element (10) having a density greater than 0.5 g/cc, a separate substrate (12) bearing an aerosol forming material, a heat conducting member (14) recessed from the lighting end of the fuel element (10), which preferably encloses the substrate (12), a resilient insulating jacket (72) encircling at least a portion of the fuel element, and an optional tobacco jacket (88) encircling at least a portion of the aerosol forming material.
Patent EP-0350645-A2 (EP)
Inventor: NOLL HANS
IPC: B23K9/032
Filed: 1989-06-15
Abstract: When flame cutting a tube by machine or welding at least one branch tube to a tube, in order to avoid welding or cutting defects caused by lateral displacement or by incorrect guidance of the rotating tube over the drive rollers (slippage), it is proposed to measure the actual rotational angle ( gamma ) of the tube (1) and/or the actual rotational speed (v) of the tube (1) and/or the axial and/or the radial actual position (Xs, Xr) of the tube and, in the event of deviations of the actual values from desired set values, to make corresponding adjustments to the torches or welding-head movement (4) or the tube (1). <IMAGE>
Patent EP-0356747-A2 (EP)
Inventor: MATT KONRAD DR DIPL-CHEM
IPC: A01G7/02
Filed: 1989-08-03
Abstract: The invention relates to a process and an apparatus for intensive cultivation of plants (1) on a support material (5), in particular soil material. To increase the plant yield while avoiding the accumulation of environmentally hazardous or toxic substances in soil and plants, it is proposed to introduce a gas containing oxygen into the support material (5). In this case technical grade oxygen is preferably used. <IMAGE>
Patent EP-0355802-A2 (EP)
Inventor: BENIN JOSHUA
IPC: B01F11/00
Filed: 1989-08-23
Abstract: A nutatable plastic vessel, having a protuberant tip at its bottom end, has its side wall connected by a plastic hinge to a housing.
Patent EP-0361539-A2 (EP)
Inventor: GRAS HORST
IPC: F25B41/06
Filed: 1986-11-29
Abstract: The seat (87) has a bore, into which the closing member (84) projects with a cylindrical region (88), the diameter of which is slightly smaller than the diameter of the bore in the seat (87). As a result, the throttle effect with the valve partially opened is increased and easily controllable. Additionally or alternatively, there is arranged between servomotor (4) and closing member (84) a differential screw gear (50', 51, 50'', 52) in order to ensure a sensitive control of the closing member (84). <IMAGE>
Patent EP-0378777-A2 (EP)
Inventor: BUHLER WOLFHARDT
IPC: H03M3/02
Filed: 1989-11-15
Abstract: An analog/digital conversion is described in which an analog integrator integrates the difference between the measurement signal and the signal of a microprocessor-controlled D/A converter, as a result of which a high resolution and very high operating speed are achieved with relatively little complexity and low noise.
Patent EP-0325391-A2 (EP)
Inventor: BREHMER GEOFFREY EMIL
IPC: H03F3/30
Filed: 1989-01-16
Abstract: A transmitter for converting a binary digital signal into a pseudo-ternary signal at first and second output nodes (40, 41) to form differential output voltages includes a current source amplifier circuit (10), a first voltage source amplifier circuit (12), and a second voltage source amplifier circuit (14). The current source amplifier circuit (10) is responsive to a reference current for generating a first drive current and a second drive current. The first voltage source amplifier circuit (12) is responsive to a reference voltage, a first digital control signal, a second digital control signal and the first drive current for driving the first output node (40) to the reference voltage when the second digital control signal is at a high logic level and for driving the first output node (40) to a ground potential when the first digital control signal is at a high logic level. The second voltage source amplifier circuit (14) is responsive to the reference voltage, first digital control signal, second digital control signal, and second drive current for driving the second output node (41) to the reference voltage when the first digital control signal is at a high logic level and for driving the second output node (41) to the ground potential when the second digital control signal is at a high logic level. The transmitter has been designed so as to overcome the problem of line clamping during a power-down condition, provides a current limiting function, and reduces the ringing problem associated with driving an inductive load with a high impedance source.
Patent EP-0335709-A2 (EP)
Inventor: KOIWA YOSHINOBU
IPC: E02D5/18
Filed: 1989-03-30
Abstract: A method of constructing shafts and continuous walls quickly and efficiently. The construction process consists of one step in which air and a ground hardener are injected by a jetting pipe element (2) to form a column-shaped region of soil mixed with hardener (31); and another step in which a hardening inhibitor is injected into the soil-hardener mixture region (31) by the jetting element (2), the shaft then being formed by excavating the portion of the ground (32) that has not been hardened because of the presence of the inhibitor.
Patent EP-0336762-A2 (EP)
Inventor: RASMUSSEN JERALD K C O MINNESO
IPC: C08F290/00
Filed: 1989-04-06
Abstract: The present invention provides a dramatically improved process for the preparation of acrylamide and methacrylamide functional monomers, oligomers, and polymers that avoids the use of acidic catalysts which can cause undesired side reactions. The present invention process involves reacting an alkenyl azlactone with a hydroxy functional compound in the presence of a catalytic amount of either a bicyclic amidine or a trivalent phosphorus compound. These efficient basic catalysts provide unexpectedly increased reaction rates under mild conditions.
Patent EP-0352019-A2 (EP)
Inventor: SCHUBERT ERDMANN FREDERICK
IPC: G02F1/017
Filed: 1989-07-13
Abstract: Electromagnetic radiation is modulated in response to an electrical signal which produces a variable electric field in a semiconductor δ-doped structure. A resulting device has a desirably broad wavelength range in which light intensity can be modulated, large contrast ratio between transparent and opaque states, small operating voltage, and high-speed capability as desirable in optical communications applications.
Patent EP-0352069-A2 (EP)
Inventor: HILL ROBERT DERYCK
IPC: E05G1/024
Filed: 1989-07-18
Abstract: A heat absorbent material is made by dissolving gelatine in hot water together with anti-bacterial and anti-fungal additives; while the mixture is still warm it is used to impregnate a blanket of ceramic fibre. When all the mixture (typically up to 13.5 times the weight of the blanket) has soaked into the blanket and cooled to form a gel, the resulting heat absorbent material is sealed in a water-impermeable plastic jacket. 
     This material contains more water, and hence can absorb more heat, than a blanket simply soaked with water. The water does not readily drain out of the blanket and is kept evenly distributed throughout the blanket by capillary forces if it is subjected to heat. The material can be readily cut to size and shape, and when sealed in a jacket can be easily handled. It can be used, typically in conjunction with thermal insulation, in heat resistant containers such as safes and in heat resistant partitions.
Patent EP-0356201-A2 (EP)
Inventor: OHTA KENJI
IPC: G11B7/24
Filed: 1989-08-22
Abstract: An optical recording element (4) comprising a recording medium which includes an information recording area formed at every unit in a non-continuous condition, the recording medium further including sample (2) pits disposed at intervals of a fixed distance for providing basic information about the locations of the recording units in the same track. Each sample pit comprises a plurality of pits disposed next to the sequence of the recording units so that the spacing between the pits differs from the spacing between the recording units. At least one of the plurality of pits is a long-sized inclined pit which is inclined at an angle in the range of 6° to 80° to a recording track. A driving system for driving the optical recording element for recording information in the non-continuous recording area or erasing information stored therein with a light beam the output of which is varied as required and checking whether said recording or erasing has been correctly performed, within a very short time in which the light beam passes through the non-continuous recording area. By using the optical recording element in combination with its driving system, the processing speed can be greatly improved and the irradiating position of the light beam at every recording unit can be correctly controlled.
Patent EP-0363203-A2 (EP)
Inventor: MILDER FREDRIC L
IPC: A61M60/865
Filed: 1989-10-05
Abstract: A novel cardiac assist balloon assembly and methods of insertion are shown. In one embodiment, the balloon end of the assembly has an intrinsic curvature adapted to the aortic arch, and is straightened by a removable stiff member extending within the catheter to facilitate insertion along the passage. When the balloon is at a curved portion of the passage, the stiff member is retracted, allowing the balloon and adjacent support to conform to the curved passage and advance further without trauma to the vessel. The curved balloon may be stably positioned in a curved arterial passage and pumped with a pulsatile inflation source. In another aspect, an occluding balloon having an asymmetric curvature achieves reliable blood pumping near to the atrium. A torsion-free extender stretches the balloon for compacting it and insertion, and may be inserted over a guide wire, operating without blocking the pressure lumen.
Patent EP-0369741-A2 (EP)
Inventor: NACHT SERGIO
IPC: A61K8/00
Filed: 1989-11-14
Abstract: Cationic compositions comprise an active in­gredient absorbed within a network of internal pores defined by a plurality of polymeric particles. The particles are preferably crosslinked polymeric beads having a diameter in the range from about 5 to 100 microns and a surface charge density from about 0.1 to 10 meq/gm hydrogen ion capacity. The active ingredients are released from the cationic polymer beads over time when applied to a keratinic material, typically human skin or hair. The cationic charge promotes adhesion of the beads to the keratinic material.
Patent EP-0371810-A2 (EP)
Inventor: MOZAWA TOSHIYUKI
IPC: B29C44/12
Filed: 1989-11-30
Abstract: A window (1) for automobiles or the like includes a window plate (2) and an integral frame member (3) along at least one edge of the window plate. The window (1) is manufactured by preparing a window plate (2) and a pre-shaped frame body (3) which comprises a main portion (5) and a surface layer (6) covering an outer side of the main portion. The main portion (5) of the pre-shaped frame body (3) is composed of a thermoplastic synthetic resin material having a relatively high dielectric loss and containing a heat foamable agent therein. The surface layer (6) is composed of a non-foamable thermoplastic synthetic resin material. The pre-shaped frame body (3) is subjected to a dielectric heating in a mold, to cause the foamable agent in the main portion of the pre-shaped frame body to expand in the mold cavity. The resultant frame member (3) of the window comprises a main portion (5) composed essentially of a foamed thermoplastic synthetic resin material, which is covered on its outer side by a surface layer (6) composed essentially of a non-foamed thermoplastic synthetic resin material.
Patent EP-0325556-A2 (EP)
Inventor: BLUMENSCHEIT UWE
IPC: B26D3/08
Filed: 1989-01-18
Abstract: A tube scorer for plastic tubes encased in a metallic protective foil and a layer of plastic, possessing a scoring point 3 for the scoring. In addition, a stop 2, 17, 18 is provided for the tube end. Provided in the sleeve 1 is a rolling-bearing set 4 which forms, together with the sleeve 1, a geometric positive bearing in the region of the scoring point 3. <IMAGE>
Patent EP-0391035-A2 (EP)
Inventor: JACKSON DAVID P
IPC: H01L21/308
Filed: 1990-02-08
Abstract: A process for removing undesired material from a chosen substrate by exposing the substrate simultaneously to ultraviolet radiation and a selected dense fluid, wherein the radiation produces a photochemical reaction that removes the undesired material from the substrate and the dense fluid enhances the removal of the undesired material. In an alternative embodiment, a reactive agent may additionally be used. The process may be used to remove contaminants from a substrate, etch a substrate surface, or destroy toxic organic material in industrial wastes.
Patent EP-0390041-A2 (EP)
Inventor: IKEZAKI MASAO
IPC: G11B27/34
Filed: 1990-03-26
Abstract: A remote-control apparatus for operating one of plural audio visual apparatus provided with a display screen, and on which a plurality of icons showing functions and operation modes of the audio visual apparatus are displayed, then an icon is pointed out by a cursor (20) which is shifted to predetermined positions on the display screen by manipulating one of several switches, shiftable destination of the cursor with respect to a switch is determined by a predetermined rule, in which relation between the switches and the destination of the cursor is changed according to the present position of the cursor.
Patent EP-0392285-A2 (EP)
Inventor: ROSTHAUSER JAMES W
IPC: C08G18/08
Filed: 1990-03-30
Abstract: The present invention is directed to a process for the direct production of a pigmented thermoplastic polyurethane powder in finely divided form by
     a) reacting with agitation at an overall equivalent ratio of isocyanate groups to isocyanate reactive groups of about 0.5 to 1.1 
(i) a surfactant-stabilized emulsion of fine droplets of a first reactant which has an average of about two isocyanate or isocyanate reactive groups in admixture with at least one pigment with 
(ii) a second reactant which contain an average of about two isocyanate or isocyanate reactive groups, 
in an inert organic liquid in which the first reactant, the pigment and the powder are substantially insoluble or immiscible to form particles of the powder which are protected from agglomeration by the surfactant, and   b) separating the particles of the powder from the inert organic liquid.   
     The present invention is also directed to the pigmented thermoplastic polyurethane powders obtained by this process.