baber/WOPTO huggingface dataset:
Patent EP-0288044-A2 (EP)
Inventor: IWASAWA TOSHIYUKI
IPC: B41J2/205
Filed: 1988-04-20
Abstract: A multi-nozzle type ink jet recording apparatus arranged so as to eject ink from each of a plurality of ink nozzles (88-91) toward a writing surface by means of an electric field established due to an ink ejecting signal applied to each of ink nozzles. The ink jet recording apparatus includes a circuit (1) for generating a density information signal indicative of a recording density at every ink nozzle and a control unit (3) being responsive to the density information signal and having a plurality of memories (11-13). Each of the plurality of memories stores a density-to-signal characteristic being predetermined to correspond to one or more of the ink nozzles (88-90) and the density-signal characteristic represents the relation between the recording density and the ink ejecting signal indicative of an ink ejecting amount ejected from each of the ink nozzles. The control unit (3) selects one from the density-to-signal characteristics at every ink nozzle and generating the ink ejecting signal indicative of the ink ejecting amount determined on the basis of the density information signal from the density information signal generating (1) circuit in accordance with the selected density-to-signal characteristic, the generated ink ejecting signal being applied to the corresponding ink nozzle.
Patent EP-0290867-A2 (EP)
Inventor: SCHONFELD HARALD
IPC: G01M1/16
Filed: 1988-04-27
Abstract: In a process for determining the position and size of a correction in correction planes for reducing out-of-balance found in a body, in which process corrections are provided which can be determined gradually with regard to the size and continuously with regard to the position, it is proposed, in order to minimize the static residual out-of-balance with only one balancing weight per correction plane, to determine the existing out-of-balance in the correction planes according to size and position, to determine the effect of various corrections per correction plane, which can be carried out with a balancing weight, on the static and dynamic residual out-of-balance, and to provide those corrections in the correction planes for balancing which are allocated to the smallest possible static residual out-of-balance and whose residual out-of-balance per correction plane lies within predetermined limits. 
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Patent EP-0289045-A2 (EP)
Inventor: NISHIGUCHI MASANORI YOKOHAMA W
IPC: B28D5/00
Filed: 1988-04-29
Abstract: An apparatus for making a semiconductor device comprises a flexible mat (12), support shafts (11) for supporting the flexible mat (12) in a substantially horizontal position, a pressing plate (16) having a generally convex body (17) and supported for movement up and down, and a drive mechanism for driving one of the pressing plates (16) and a wafer (13) on said mat relative to the other of the pressing plate (16) and the wafer (13) so as to move up and down. The wafer (13) having the first and second surfaces opposite to each other with the chips formed on the first surface thereof is placed on the mat (12) with the chips confronting the flexible mat (12). The convex body (17) of the pressing plate (16) is pressed against the second surface of the wafer (13) to separate the chips on the wafer (13) individually.
Patent EP-0290938-A2 (EP)
Inventor: JURGENS RAINER DIPL-ING
IPC: E21B47/18
Filed: 1988-05-04
Abstract: A device for generating pressure pulses in a drilling fluid flowing down through a drill-pipe string (1) comprises a valve arranged in the drill-pipe string (1) and having an axially displaceable, tubular main valve body (4), a fixed, tubular support body (5) which is arranged coaxially in the main valve body (4) and in the overlapping area with the main valve body (4) defines with the latter a cylindrical gap (18), and an auxiliary valve (13, 14) which can be actuated by means of a drive (15). The outer part (3) and the main valve body (4) define between them a restriction section (28) with a cross-section of flow which can be varied as a function of the position of the main valve body (4), and the main valve body (4) and the support body (5) surround an inner flow passage (21, 12, 10) whose inlet opening (25) is provided centrally in the end part (22) of the main valve body (4) and whose outlet opening (13) is arranged centrally on the bottom closed base part (8) of the support body (5) and can be cleared and closed by means of the auxiliary valve body (14). In this arrangement, drilling fluid can flow freely through the gap (18) between the main valve body (4) and the support body (5), and the gap (18) forms a narrow restriction section (29; 30) in the overlapping area.
Patent EP-0303983-A2 (EP)
Inventor: PELZER HERMANN DR
IPC: C07K17/02
Filed: 1988-08-12
Abstract: The synthetic peptides have amino-acid sequences which correspond in whole or in part to the amino-acid sequence of prothrombin and are antigenic, and they are used for immunising an animal and for purifying specific antibodies, and the antibodies against these peptides are used to determine the F2/F1+2 fragments. Hitherto used for the determination of the contents of the F2/F1+2 fragments have been antibodies induced by immunisation with natural, highly purified prothrombin F2/F1+2 fragments. The isolation of these prothrombin fragments is elaborate and costly, and the antibodies raised therewith show cross-reactions with intact prothrombin. Used for the immunisation according to the invention are synthetic peptides which have amino-acid sequences which correspond in whole or in part to the amino-acid sequence of prothrombin and are antigenic. The resulting antibodies react specifically with the antigen to be used for immunisation; if the peptides contain the carboxy-terminal amino-acid sequence of the F2/F1+2 fragments resulting after cleavage of the prothrombin molecule with factor Xa, the antibodies which are raised react specifically with the F2/F1+2 fragments but not with intact native prothrombin so that it is possible to obtain information about the degree of activation of prothrombin.
Patent EP-0311982-A2 (EP)
Inventor: SHIOZAKI TSUGIO
IPC: B41J25/316
Filed: 1988-10-11
Abstract: A thermal printer comprises a pair of fixed frames (2) for rotatably supporting a platen (1), a head unit (16) movable relatively to the fixed frames and swing­ably supporting an elongated thermal head (15) around its intermediate portion, a pair of leaf springs (28), one end of which resiliently urges the head unit toward the fixed frames so that the thermal head is pressed resiliently against the platen across a paper sheet, and a cam member (31) having cam faces (32a, 32b, 32c) which are selectively engaged with the other end of the leaf spring for changing the urging force of the leaf spring by stages in accordance with the quality of the paper sheet.
Patent EP-0315057-A2 (EP)
Inventor: MONTAGUTI GIOVANNI
IPC: H02B1/052
Filed: 1988-10-27
Abstract: The modular support element structure (1) comprises a central portion (2) having lateral wings (10) defining seats (11,12) for accommodating circuit boards of different widths, members (3) for coupling the support element (1) to standardized support bars, and male and female couplings (25), for laterally interconnecting a plurality of modular support elements (1) to define a circuit board support tray. End walls can be connected to the outer ends of such interconnected modular elements to close the support tray defined thereby.
Patent EP-0318836-A2 (EP)
Inventor: LIANG YEON FONG
IPC: C08G75/0231
Filed: 1988-11-24
Abstract: Poly(arylene sulfide) and articles of manufacture prepared therefrom are prepared in a reaction mixture which contains a p-dihalo substituted aromatic compound, a polyhalo substituted aromatic compound, and a p-dihalo alkyl-substituted aromatic compound. The p-dihalo alkyl-substituted aromatic compound is employed in an amount from about 3 to about 10 mole percent, and the polyhaloaromatic compound in a minor amount, generally less than 1 mole percent, to produce a crystalline poly(arylene sulfide) for extrusion into film, fiber or molded products of described physical properties.
Patent EP-0323612-A2 (EP)
Inventor: VALLANCE MICHAEL ALAN
IPC: B32B5/28
Filed: 1988-12-22
Abstract: Disclosed are interleafed fiber-reinforced thermoplastic composites formed by introducing a ductile interleaf block copolymer layer to a fiber-reinforced thermoplastic layer. Also disclosed are methods for producing such composites. These composites are useful in numerous applications where toughness, impact strength and resistance to delamination are desirable.
Patent EP-0305015-A2 (EP)
Inventor: VAN DER LELY CORNELIS
IPC: A01B33/06
Filed: 1988-08-25
Abstract: The invention relates to soil cultivating machines comprising a frame and at least one soil working member (3) that is drivable by means of a transmission including at least one gear wheel (12). The gear wheel (12) includes a gear ring (15) mounted rotatably between two plates (28) against a spring force acting around the shaft (2) of the said soil working member (3). Spring-loaded mechanisms (27) are provided that act at points on a hub (13) and a gear ring (15) of the gear wheel (12), respectively, which are inter­spaced by circumferential angles of approximately 120°. The gear wheel (12) is positioned in a lubricant bath and a spring-loaded mechanism (27) disposed between the hub (13) and the gear ring (15) of the gear wheel (12) is of such a construction that, during movement, the lubricant is reciprocated therethrough.
Patent EP-0280552-A2 (EP)
Inventor: POPALIS CRAIG HAMILTON
IPC: G21C19/02
Filed: 1988-02-25
Abstract: The arrangement comprises a plug (40) and a tool (100) for installing it in a flow hole (11) having a chamfered entrance portion (37) and a non-chamfered portion (39) extending therefrom. 
     The plug (40) comprises a plug body (42) includ­ing a mandrel (47) for expanding a distal portion (48) of the plug body into sealing engagement with the wall of the non-chamfered portion of the flow hole, and a retaining ring (44) disposed on and cooperating with the plug body to determine the axial position thereof within the flow hole. The retaining ring (44) is slideable on the plug body (42) within limits enabling the plug (40) to be telescopically shortened to facilitate installation thereof, and telescop­ically extended to a length assuring proper positioning of the expandable distal plug body portion within the non-chamfered portion of the flow hole to be plugged. The tool (100) comprises a relatively shallow frame (116) supporting a plug-holding cradle assembly (114) for move­ment between a retracted position and a projected plug-­inserting position, and a compact hydraulic ram (112) for driving the mandrel of the plug (40) to its plug-body expanding position. 
     The arrangement is particularly suitable for use in plugging flow holes in the core barrel of nuclear reactors.
Patent EP-0282232-A2 (EP)
Inventor: HALL CHRISTOPHER
IPC: E21B47/10
Filed: 1988-03-03
Abstract: For monitoring drilling mud circulation there is incorporated in the supply mud a known amount or concentration of at least one tracer ion which is substantially non-interactive with the other mud components and with the strata drilled, and the return or circulatory mud is analysed at the rig site (preferably by ion chromatography) for the non-interactive ion(s) to give an indication or annular dispersion. Preferably at least two tracer ions (eg a tracer compound providing a non-interactive cation and non-interactive anion) are used, these being analysed independently in the return or circulatory mud to give separate checks on annular dispersion. Preferably the tracer is injected discontinuously into the supply mud, in spaced discrete relatively concentrated doses, and the residence time distribution of the tracer is plotted for each dose.
Patent EP-0288250-A2 (EP)
Inventor: SCARROW DAVID
IPC: A61J1/05
Filed: 1988-04-20
Abstract: A liquid dispensing bag 10 has at least one port 16;20 with an inner closure 24 and a removable outer closure 26;40 provided by a plug 26;40 which is sealed into an outer portion of the port which can be torn away. The tearing away is facilitated by a line of weakness 34 A radial flange 36;43 on each side of the line of weakness 34 protects the surface exposed by tearing from finger contact. The plug 26;40 has a major portion 30 that is sealed into the removable portion of the port, and a portion 32 of lesser diameter that extends towards the inner closure 24. This reduces the volume of air trapped between the closures, and hence the risk of problems due to expansion on autoclaving. The major and lesser portions are connected via a chamfer 31;41. This is located adjacent the line of weakness 34, and acts to prevent the flanges from being welded together on autoclaving.
Patent EP-0301779-A2 (EP)
Inventor: SLOCUM ALEXANDER H
IPC: B23Q5/40
Filed: 1988-07-25
Abstract: In a system (4) that includes a linearly movable carriage (15) or the like, a mechanism to convert rotary motion of a leadscrew (19) to linear motion of a nut (17) and, hence, linear movement of the carriage to which the nut is mechanically secured. The leadscrew has a special threadform (24) and the nut has a special threadform (28) that matches the threadform of the leadscrew with a pressurized fluid interface therebetween, there being both axial clearance (31) and radial clearance (32) sufficient to accommodate angular and lateral misalignment between the leadscrew and the carriage. Shallow independent grooves (22A, 22B) or passages are distributed along the length nut's helical threadform to equalize air pressure therealong and orifices (23) are provided to the grooves or passages to permit introduction of high pressure air or other fluid thereto. Exhausts (21) are provided from the region of clearance between the leadscrew threadform and the nut threadform. Both threadforms are ideally in the form of square threads.
Patent EP-0301807-A2 (EP)
Inventor: KASAHARA KENICHI C O NEC CORPO
IPC: H03K19/14
Filed: 1988-07-26
Abstract: The method comprises the step of applying a train of pulses (313) across the anode (33) and cathode (36) of the thyristor to maintain a low impedance state of an optical pnpn thyristor which is shifted beforehand to be in a low impedance state by a positive set pulse (311). Each of the train of pulses (313) is less than in its level than the positive set pulse (311). When light emission is required for the reading of information, another positive set pulse (312) is applied to the optical pnpn thyristor. As a result, electric power consumption is reduced during a time storing the information. The train of pulses (313) may be superimposed on a low bias voltage (Vb1).
Patent EP-0301921-A2 (EP)
Inventor: ZEIGLER MICHAEL L
IPC: G06F13/18
Filed: 1988-08-01
Abstract: A parallel processing computer is disclosed in which a plurality of memory elements (e.g., caches) are accessible by a plurality of processors, and in which a fixed access priority for the processors is varied periodically to reduce differences in processing times between the processors in applications where memory access conflicts occur. The variation in priority is done infrequently enough so as not to disturb the ability of the system to avoid memory access conflicts by falling into a "lockstep" condition, in which the fixed priority combined with a selected interleaving of the memory elements produces a memory access pattern that, for certain memory strides, produces no memory access conflicts.
Patent EP-0324225-A2 (EP)
Title: Gated isolation structure
Inventor: HSU JE-JUNG
IPC: H01L21/765
Filed: 1988-10-04
Abstract: The invention relates to a radiation hardened (R-H) bulk complementary metal oxide semiconductor (CMOS) isolation structure and a process for its formation. The isolation structure may be automatically generated from the original thin oxide layer of any commercial product by computer aid design and basically comprises a ground MOS gate surrounding the active areas. The grounded MOS gate replaces the conventional LOCOS field oxide and consists of novel oxide-silicon nitride-oxynitride gate insulator and a CVD polysilicon film. The radiation resistance of this gated isolated structure (GIS) is suitable for application in radiation-immunity VLSI integrated circuit (≦ 2 um design rule).
Patent EP-0320164-A2 (EP)
Inventor: BALAZS ENDRE A
IPC: A61P17/00
Filed: 1988-11-29
Abstract: Disclosed is hylan, a chemically modified hyaluronan preparation characterized by the presence of small amounts (0.0002-0.05% by weight) of aldehyde cross-­linking groups covalently bonded to the hyaluronan molecular chains. Also disclosed is an improved method of obtaining hylan comprising treating hyaluronan  in situ  in animal tissues containing same with a treatment mixture including an aldehyde which is reactive towards hyaluronic acid and the proteins contained in the animal tissue. Treatment is effected at temperatures below about 16°C at very high pH, e.g. 8-14 whereby the overall yield is increased while maintaining the high molecular weight of the hylan.
Patent EP-0305300-A2 (EP)
Inventor: YAMAGUCHI TAKESHI C O ITAMI WO
IPC: C04B35/45
Filed: 1988-08-29
Abstract: An alloy consisting of metal elements, such as Y, Ba and Cu which are constituent elements of a superconducting compound oxide to be produced is oxidized so that a surface of the alloy is converted to the superconducting compound oxide such as YBa₂Cu₃O 7-δ .
Patent EP-0324312-A2 (EP)
Title: Polymer alloy
Inventor: MUSE JOEL JR
IPC: C08L23/32
Filed: 1988-12-16
Abstract: The present invention reveals a polymer alloy which is comprised of (a) at least one highly unsaturated rubbery polymer which is covulcanized with at least one N-chlorothio-sulfonamide modified EPDM rubber and (b) at least one thermoplastic resin. A blend of polypropylene with nitrile rubber which has been cocured with an N-chlorothio-sulfonamide modified EPDM rubber is a representative example of such a polymer alloy.
Patent EP-0319506-A2 (EP)
Inventor: ADAMS STEVEN PAUL
IPC: C07K5/10
Filed: 1988-12-02
Abstract: Novel tetrapeptide derivatives are provided which have useful activity as inhibitors of platelet aggregation. These compounds have the sequence X-Gly-Asp-Y wherein X is illustrated by arginine and Y is illustrated by O-methyltyrosine amide.
Patent EP-0366854-A2 (EP)
Inventor: DOWNER ROBERT R
IPC: G01N30/86
Filed: 1989-01-31
Abstract: Apparatus for controlling the use of consumable accessory units with machines where a memory device associated with each accessory unit holds information concerning the accessory unit, and circuitry in the machine acts in response to the information. The information includes (1) the classes of machines with which the accessory unit is intended to be used (the machine issues a signal if the machine is not within one of the intended classes); (2) the concentration of the contents of the accessory unit (the machine operation is controlled on the basis of the concentration); (3) an encrypted authorization code (the machine issues a signal if the decrypted code is not an authorized one); (4) the manufacturing lot of the accessory unit (the machine displays the lot number to the user); (5) the expiration date of the accessory unit (the machine issues a signal if the expiration date has passed); (6) a unique identification number to trigger the machine to compare a predetermined total number of permissible uses with the number of actual uses (the machine issues a signal when the accessory unit is deemed to be empty); (7) information concerning calibration of the machine (the electronic circuitry is calibrated in response to the information); (8) the range of permissible operating conditions for the machine in conjunction with the accessory unit (the machine displays the information for operator use); (9) the range of permissible uses of the accessory unit (the machine displays the permissible uses to the operator); and (10) the range of permissible quantities of material that may be added to the accessory unit (the machine displays the information to the user).
Patent EP-0341586-A2 (EP)
Inventor: MCEWEN JAMES A
IPC: B01L3/14
Filed: 1989-05-05
Abstract: Apparatus for partitioning a pre-selected phase of a sample of liquid, such as blood, having a plurality of phases of differing densities Disclosed is an apparatus for separating a pre-selected phase of a sample contained in an enclosed chamber, wherein said apparatus can be used with a separating means which rotates the chamber about either a longitudinal axis of the chamber, or about an axis perpendicular to the longitudinal axis of the chamber and not passing through the chamber. In addition, separating means in which such an enclosed chamber is rotated about a longitudinal axis is described. Also disclosed is an apparatus for dispensing fluid from said enclosed chamber.
Patent EP-0364660-A2 (EP)
Inventor: MUNDHENKE ERICH
IPC: E05B9/10
Filed: 1989-05-27
Abstract: The invention relates to a cylinder lock with a cylinder housing (1) and with a cylinder core (2) mounted rotatably inside it and having a key channel (3) extending in its axial direction, and with a closing toe (5) mounted rotatably in the cylinder housing and coupled to the cylinder core, there being in the cylinder housing (1) and in the cylinder core (2) a plurality of mutually aligned bores which extend into the channel (3) and in which housing pins (8), preferably of equal length, and core pins (9) of differing length are prestressed in the direction of the channel by spring force, there being formed between the cylinder housing (1) and cylinder core (2) a first gap through which the housing pins (8) pass when the key (4) is not inserted, and the ends of the core pins (9) interacting with the notches of the key (4) such that, with the key inserted, the pins are displaced in their axial direction into a position in which the bearing ends of all the core and housing pins are located in the first gap and thus allow the cylinder core (2) and the closing toe (5) to rotate. According to the invention, to couple the cylinder core (2) to the closing toe (5) there is a sleeve (6) which is mounted rotatably between the cylinder core (2) and the housing (1) and which thereby forms, in addition to the first gap relative to the cylinder housing (1), a second gap relative to the cylinder core (2), the core pins (9) having a lower strength than the sleeve (6) and the housing pins (8). This ensures that the closing toe (5) cannot be rotated even after the core pins (9) have been forcibly sheared off. <IMAGE>
Patent EP-0337506-A2 (EP)
Inventor: SENSABAUGH ANDREW JACKSON JR
IPC: A24D1/22
Filed: 1985-09-11
Abstract: The present invention relates to a smoking article which produces an aerosol that resembles tobacco smoke, but contains no more than a minimal amount of incomplete combustion or pyrolysis products. 
     Preferred embodiments of the present smoking article comprise a short combustible carbonaceous fuel element (10), a heat stable substrate bearing an aerosol forming substance (12), a heat conducting member (14) which contacts a portion of the fuel element (10) and the substrate (12), and an insulating jacket surrounding at least a portion of the fuel element. 
     The smoking article of the present invention is capable of providing an aerosol "smoke" which is chemically simple, consisting essentially of air, oxides of carbon, water, and the aerosol which carries any desired flavorants or other desired volatile materials, and trace amounts of other materials. The aerosol "smoke" from the preferred embodiments has no significant mutagenic activity as measured by the Ames Test. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use.