baber/WOPTO huggingface dataset:
Patent EP-0319269-A2 (EP)
Inventor: RENGER HERMAN LEE
IPC: H02M3/158
Filed: 1988-11-30
Abstract: A power converter for use in converting a variable DC input voltage into a variable DC output voltage uses control circuitry on both the input and the output to optimise converter performance. The converter comprises an inductor (16) the ends of which are connected through a pair of ganged switches (14,18 and 24,30) to each of the input and output terminals (10,12 and 26,28). The inductor is charged by a timing circuit (20) which closes the input switches (14,18) and opens the output switches (24,30). The duration of charge is dependent on the level of incoming voltage, as sensed by an input comparator (22). When the inductor is charged the timing circuit opens the input switches (14,18) and closes the output switches (24,30) for a duration dependent on the discharge voltage as sensed by an output comparator (34). In an alternative embodiments the inductor is tapped to provide more than one output. The comparators are set to charge the inductor to a point near saturation and to discharge the inductor completely. In this way input and output power capabilities are maximised and the efficiency is improved without undue complexity.
Patent EP-0297041-A2 (EP)
Inventor: NEUMAIER ANTON
IPC: B25F3/00
Filed: 1988-06-14
Abstract: A hand-held device with a holder for a working tool has a sensing mechanism for automatically initiating different operating modes. Different configurations of working tools inserted into the holder can be sensed by sensing elements in the form of balls. The balls cooperate with pivotal levers and a sensor for producing switching signals for initiating a switching operation.
Patent EP-0330041-A2 (EP)
Inventor: LINDNER WERNER DR
IPC: C07C271/08
Filed: 1989-02-13
Abstract: Novel substituted 1,2,4-triazinediones of the general formula I 
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 in which
 R<1> represents heteroaromatic radicals bonded via carbon and which are optionally substituted,
 X represents O, S, SO or SO2, R<2> represents one or more, identical or different radicals of the group comprising hydrogen, halogen, nitro, alkyl, alkoxy, haloalkyl and haloalkoxy and
 R<3> represents hydrogen, optionally substituted alkyl, alkenyl, alkynyl or aralkyl,
 process for their synthesis and intermediates therefor. The compounds of the formula I are used for combating parasitic protozoa.
Patent EP-0342422-A2 (EP)
Inventor: MAEHR HUBERT
IPC: C07H19/16
Filed: 1989-04-29
Abstract: (A) The prepn. of 2',3'-dideoxy nucleoside derivs. (I) comprises (a) reacting a 5'-protected nucleoside with thiophosgene or 1,1'-thiocarbonyldiimidazole to give the corresp. nucleoside-2',3'-thiocarbonate (II); (b) reducing the thiocarbonate (II) to the corresp. alkene, (c) hydrogenating the alkene to an alkane and (d) removing the protecting gps. (B) Intermediate cpds. of formula (IIa) are new. In (IIa) A is purinyl or pyrimidinyl, R is a protecting gp. The reducing agent in (b) is pref. 1,3-dimethyl-2-phenyl-1,3-diazaphospholidine. In a pref. embodiment the nucleoside in step (a) is cytidine in which the 4-amino and 5'-hydroxy gps. are protected and the reducing agent in (b) is the one stated above. In partic. the cytidine is N-acetyl-5'-O-((1,1-dimethylethyl) diphenylsilyl) cytidine (IIIa) and the hydrogenation in step (c) is carried out in the presence of a Pd catalyst and the protecting agents are removed by treatment with tetrabutylammonium fluoride or methylamine and MeOH.
Patent EP-0342652-A2 (EP)
Inventor: HAYASHI HIDEO
IPC: C08G73/16
Filed: 1989-05-17
Abstract: A thermoplastic wholly aromatic copolyimide ester consisting essentially of the recurring unit (I) represented by the following formula:
     the recurring unit (II) represented by the following general formula:
     wherein
     n is an integer of 0 or 1;   the recurring unit (III) represented by the following formula:
     wherein the two carbonyl groups are present at para position or meta position of the benzene nucleus to each other;   and the recurring units (IV 1) or (IV 2) represented respectively by the following formulas:
     wherein
   -Q- is -0- or -CO-   and each Q is present at para position or meta position of the benzene nucleus respectively to the imide group,   or
     with the proviso that the recurring units (I), (II), (III), and (IV) are bonded to form ester bonds,   and wherein the thermoplastic wholly aromatic copolyimide ester has a melt viscosity of from 1.0 to 1.0 x 10 5  Pa•s as measured at a shear stress of 0.025 Mpa and at a temperature of from 300 to 400° C
Patent EP-0362489-A2 (EP)
Title: Burner nozzle
Inventor: STRITTMATTER BERNHARD E
IPC: F23D14/48
Filed: 1989-07-06
Abstract: A gas burner, preferably an evaporation oil burner consisting of a socket, which is provided with a fuel supply and has an internal bore with an internal thread, having a cylindrical nozzle body containing a nozzle opening and an external thread that can be screwed into the socket, and having a strainer assigned to the nozzle body. The nozzle body is provided with an extended shaft, passing along the entire length of which is a longitudinal bore upstream of the nozzle opening, and inside a prescribed region the shaft is provided with a multiplicity of radial bores, which end in the longitudinal bore and whose diameter is smaller than the diameter of the nozzle opening. The sum of the cross-sections of all the radial bores is larger than the cross-section of the nozzle opening. An annular duct that is connected to the fuel supply is provided in the region containing the radial bores.
Patent EP-0350061-A2 (EP)
Inventor: KOBAYASHI TOSHIKI
IPC: F16F9/46
Filed: 1989-07-07
Abstract: A shock absorber which selectively produces differ­ent magnitudes of damping forces includes a cylinder (3) and a piston (17) slidably disposed in the cylinder and dividing an interior space of the cylinder into first (19) and second fluid (21) chambers filled with a fluid. A housing assembly (15) coupled to the piston has a main fluid passage (31) providing fluid communi­cation between the first and second fluid chambers at all times and an auxiliary fluid passage (41) providing selective fluid communication between the first and second fluid chambers. The auxiliary fluid passage can be opened to pro­vide fluid communication between the first and second fluid chambers in response to an external control signal. The auxiliary fluid passage can be closed to cut off fluid com­munication between the first and second fluid chambers when the speed of relative movement of the cylinder and the pis­ton is other than substantially zero, i.e., when the speed of expansion and contraction of the shock absorber is sub­stantially zero.
Patent EP-0359993-A2 (EP)
Title: Alarm installation to recognize defects in moving parts
Inventor: HEINZ RUDOLF DR DIPL-ING
IPC: G01N29/27
Filed: 1989-08-16
Abstract: Arranged in an alarm installation for recognising defects in moving parts (13) is an ultrasonic sensor using pulse echo operation, which is switched backwards and forwards between transmitting and receiving operation. For the purpose of reliable recognition of defects, the measurement signal of the measurement window (16) is compared to that of the control window (18). When a continuous wave sound field is employed, the interference principle is used in order to obtain a modulation frequency (fM) as a signal of the belt defect. In both versions, synchronisation of the defect signal with the belt circulation can be carried out electronically in order further to improve the recognition of defects. <IMAGE>
Patent EP-0360160-A2 (EP)
Inventor: BENDER BRUCE D
IPC: H02H9/04
Filed: 1989-09-14
Abstract: A circuit and method which eliminates the voltage spike generated by inductive kick, and generates a signal which is active while a relay is being released and for a given period thereafter. This signal can be used to power down circuits supplying signals to relay contacts, thereby allowing the relay to release without current or voltage potentials at its contact, eg. dry switching. The generated signal may also be used to disable sensors which might give false indications while the relay contacts are switching. In telephone line circuits, the generated signal can be used to disable the telephone hook switch detector or to power down the battery feed circuit feeding the subscriber line. The relay coil energy generates a signal which is active while the relay is being released. The invention uses a minimum number of components and the circuit is adjustable as to how long the generated signal remains active after the relay is released.
Patent EP-0381855-A2 (EP)
Inventor: DENZ HELMUT DIPL-ING
IPC: G01M15/10
Filed: 1989-12-22
Abstract: A device is proposed for detecting misfires in internal-combustion engines, in particular spark-ignition engines, which is provided with a detector registering the misfires and connected to an analysing circuit. The device is characterised in that the detector (9) is a pressure gradient receiver (10) connected downstream of the outlet valve of the cylinder (3), viewed in the direction of flow. This may advantageously be designed as a microphone and be connected to the collector (6) of an exhaust manifold (4) of the internal-combustion engine (1) by a pressure transmission pipe (8). The microphone is isolated from the exhaust manifold by the pressure transmission pipe so that no transmission of structure-borne noise occurs. 
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Patent EP-0327309-A2 (EP)
Inventor: KANAUCHI SHUSHI
IPC: G06F12/16
Filed: 1989-01-31
Abstract: A memory apparatus having an error correction function, comprises an error correction code generator/checker having a first input for receiving the information to be stored from a data input circuit and a second input. The error correction code generator/checker operates to generator an error correction code on the basis of the information to be stored in the case of writing and to generate an error code on the basis of signals inputted to the second input in the case of reading. A memory section is coupled to the data input circuit and an output of the error correction code generator/checker so as to store the information to be stored and a corresponding error correction code at a designated location of the memory section. A reading circuit is connected to the memory section to read information and an associated error correction code from the memory section for outputting the read-out information and associated error correction to second input of the error correction code generator/checker. A decoder is coupled to the error correction code generator/checker to receive the error code from the error correction code generator/checker and to generate a decoded signal. An error correction circuit is connected to receive an information portion of the read-out signal from the reading circuit so as to correct the received information on the basis of the decoded signal from the decoder. A control circuit is provided for maintaining the data input circuit in an active condition and the reading circuit and the decoder in an inactive condition in the case of writing and on the other hand for maintain the data input circuit in an inactive condition and the reading circuit and decoder in an active condition in the case of reading.
Patent EP-0341076-A2 (EP)
Inventor: DICKINSON BARRY LEE
IPC: C08G63/64
Filed: 1989-05-05
Abstract: Composite laminated structures comprising a poly­arylate film bound to a polyethylene film via an inter­mediate tie layer are described. The structures are fabricated by coextrusion of three layer blown tubular films with the center layer being present to bond the polyethylene to the polyarylate.
Patent EP-0354744-A2 (EP)
Inventor: MOIR JOHN
IPC: B01D21/00
Filed: 1989-08-07
Abstract: Liquor-clarifying apparatus comprises a tank 1, inlets 2 for suspension to be clarified, outlets 3 for clarified water, outlet 4 for sedimented solids, and a plurality of settling assemblies each comprising a stack 6 of downwardly inclined plates 7 mounted around a vertical collection duct 39. This duct generally comprises a downwardly extending duct 18 that leads directly into an upwardly extending duct 27. The plates 6 are preferably conical or pyramidal and are preferably self-spacing and capable of being clipped together by a push fit. A downwardly extending skirt 40 may be provided. Orifices 25 allow clarified liquid to pass from between the plates into the collection duct and preferably these orifices are elongated.
Patent EP-0372685-A2 (EP)
Inventor: PENZO RENZO
IPC: C07C37/72
Filed: 1989-09-11
Abstract: A process for recovering phenol from a rectification purge containing various organic impurities, which comprises subjecting said purge to an extraction operation, using, as an extracting solvent, an aqueous solution of an alkali metal phenate.
Patent EP-0364105-A2 (EP)
Inventor: STANISLAW PETER P
IPC: D04H18/02
Filed: 1989-09-13
Abstract: A needle loom comprises a frame (12)(14)(16)(18); a needle beam (20)(22)(82); means, including a drive shaft (106) and crank means (110) carried by the drive shaft and coupled to the needle beam by connecting rod (118), for reciprocating the needle beam (82) relative to the frame; and, means, including a guide means (172) fixedly carried by the frame (16) and a slide means (180, 182, 192) pivotally carried by the needle beam (82) and slidable relative to the guide means, for guiding the needle beam during its reciprocating movement relative to the frame.
Patent EP-0368587-A2 (EP)
Inventor: NAKATANI SHOHJI
IPC: G06F15/80
Filed: 1989-11-06
Abstract: A vector processing apparatus for carrying out vector data processing including fetching vector data from a main storage (43, 44), carrying out vector calculations, and storing vector data in the main storage (43, 44), concurrently in a plurality of vector processing units (41, 42). Each of the vector processing units (41, 42) carries out vector data processing for a portion of elements among all elements of vector data, where all elements are ordered, and the vector data processing is carried out in the order of the elements. Each of the vector processing units (41, 42) contains: an address generator (45, 55) and a priority controller (46, 56). The address generator (45, 55) in each vector processing unit concurrently generates addresses for accesses to the main storage (43, 44) for elements which are concurrently requested by the above plurality of vector processing units (41, 42). The priority controller (46, 56) determines one or more accesses as allowable, among the accesses which are concurrently requested by the plurality of vector processing units (41, 42), based on the addresses concurrently generated in the address generator (45, 55), and the above order of the elements, and then outputs one or more signals for the accesses which are requested by its own vector processing unit, and are determined as allowable, to the main storage (43, 44). Further, when an indirect addressing mode is instructed, address data for the indirect addressing for the above portion of elements is read out from the main storage (43, 44) by each vector processing unit, and is temporarily held in a vector register (49, 59) in each vector processing unit, and the address data held in the vector register (49, 59) in   each vector processing unit, is supplied to the address generators (45, 55) in all of the vector processing units (41, 42, Fig. 4).
Patent EP-0380873-A2 (EP)
Inventor: ENGER CHRISTINE D
IPC: A61M25/00
Filed: 1989-12-04
Abstract: A rapidly exchangeable catheter for use in the coronary arteries includes an elongate relatively stiff proximal segment (28) that defines an inflation lumen (36), an intermediate, shorter segment (30) formed from a more flexible plastic material and having two lumens, and a third, single lumen distal segment (32). A balloon (34) or other instrumentality adapted to operate in a coronary artery is mounted to the distal region of the catheter. The intermediate and distal segments include a guidewire lumen (44) by which the catheter may be advanced along a guidewire. The proximal segment may include an inflation lumen when the operating instrumentality at the distal end of the catheter is a balloon. The intermediate and distal segments of the catheter are of a length of between about 35 to 45 cm such that when the catheter is advanced into the most remote distal portions of the coronary anatomy, the flexible plastic intermediate and distal segments will extend over the aortic arch of the patient thereby containing the guidewire over the aortic arch and maintaining the juncture of the relatively stiff proximal segment and the more flexible intermediate   segment proximally of the aortic arch. The relatively stiff proximal section thus extends generally along a straight line from the femoral artery into the descending aorta but not so far as into the aortic arch. Buckling of the catheter is avoided so that the catheter is more easily manipulated.
Patent EP-0376589-A2 (EP)
Inventor: ERVING RICHARD HENRY
IPC: H04M1/19
Filed: 1989-12-19
Abstract: An electrical calibration (110,113) in a voice switched adaptive speakerphone accurately determines the operating parameters of the speakerphone for optimal performance before operation. This is achieved by updating thresholds used to determine when the speakerphone should be in each of three possible operating states; transmit, receive or idle. During operation, these thresholds are compared with transmit and receive signal strength levels to determine the state of the speakerphone. The thresholds are updated to counteract the effects of variation and aging of hardward circuits in the speakerphone and are obtained by having the calibration circuit generate a test tone signal which is passed through speech processing circuitry (200,300) in the speakerphone at two different levels and the resulting response measured. Since the calibration circuit has available the initial levels of the test tone signal that is passed through the speech processing circuitry and measures the relative levels of the signal that returns, the calibration circuit can adjust the speakerphone thresholds before operating to account for any variation in the circuitry. This test tone signal is passed through both a transmit speech path (200) and a receive speech path (300) in the speakerphone circuitry to separately adjust for variations in each speech path. In this manner, essentially equal thresholds are commonly set up for each path, even though the values of corresponding circuit components in the paths may differ considerably.
Patent EP-0376612-A2 (EP)
Inventor: YASUI NOBUSHIGE C O LIQUID PAC
IPC: B65D5/70
Filed: 1989-12-20
Abstract: A tightly sealed paper container, wherein a through hole (2) is formed in a container material laminated with a thermoplastic synthetic resin layer provided at the outermost layers of the front and rear of a paper board base, a lining member (3) made of synthetic resin and having a smaller hole (4) than the through hole is so positioned that the small through hole of the lining member is included within the through hole of the container material so as to be contacted with the inner surface of the container, and a pull tab piece (5) covering the through hole of the container material is contacted with the outer surface of the container. The surrounding of the small through hole of the lining member slightly projects outwardly from the front surface of the container material. A half-cut line (6) is provided on the outer surface of the container along a boundary between a contact portion of the pull tab piece to the outer surface of the container and a non-contact portion of the pull tab piece for a knob.
Patent EP-0342121-A2 (EP)
Inventor: GROSSMAN SHLOMO
IPC: A61K36/18
Filed: 1989-05-10
Abstract: The invention discloses an anti-allergic material, characterized in that it is selected from water soluble extracts prepared from tissue obtained from a plant of order  Malvales , and fractions separable from said extracts, as well as a process for the preparation of this material.
Patent EP-0369860-A2 (EP)
Inventor: LOCCI DANIEL
IPC: E01F13/04
Filed: 1989-11-08
Abstract: The invention relates to a retractable post and in particular a road post. To this end, the device according to the invention comprises a post (1) constituted by a body (2) and a foot (3) situated opposite the upper open end of a hollow cylindrical sleeve (4) provided with means of locking (5), making it possible to displace the body of the post between a service position and a rest position, said means of locking (5) comprising a sash bolt (6) operated with the aid of a key (7) engaged in a lock (8) being arranged in a receptacle (9) surrounding the upper circumference (10) of said sleeve (4), said sash bolt (6) interacting, in the service position of said post body (2), on the one hand, with a slot (11) situated along the upper circumference (10) of said sleeve (4) and, on the other hand, with a cavity (12) delimited by two projecting flanges (13) which surround the upper part of said post foot (3). <IMAGE>
Patent EP-0331655-A2 (EP)
Inventor: SODERBERG HANS
IPC: B05B15/04
Filed: 1989-02-13
Abstract: A device for applying covering material provided in the form of a roll, said material having an adhesive layer (31) along one edge section. The device comprises a frame (1) with two parallel holders (3,4) each for carrying a roll (5,6) of covering material. A handle (7) connected to the frame extends transversely to said holders and inclined in relation to the plane of the holders. The device simultane­ously receives oppositely wound rolls on the holders and per­mits a web of covering material to be fed from either of the two rolls in opposite directions, as desired. The handle (7) can be swung between two oppositely inclined positions so that the device can be moved in one or the other application direction as desired in order to feed out a web of covering material from the relevant roll of covering material. A web-shearing means (9,10) is arranged on the frame for re­spective webs of covering material.
Patent EP-0380021-A2 (EP)
Inventor: BECKER WALLACE E
IPC: A61K31/565
Filed: 1990-01-22
Abstract: An improved pharmaceutical preparation uses tromethamine and dibasic potassium phosphate or calcium carbonate to enhance stability.
Patent EP-0388723-A2 (EP)
Inventor: MUELLER HEINZ DIPL-ING
IPC: D01H9/10
Filed: 1990-03-08
Abstract: The invention relates to a device for automatically exchanging groups of full bobbins 3 for empty cores 25 on a slubbing machine, with a carriage 1 movable along the machine and having grippers 5 arranged on a gripping and pivoting device 30 for full bobbins 3 and empty cores 25, with a turntable 9 equipped with receiving spindles 51, 51' for the bobbins 3 and cores 25, and with a lifting device 10 in the region of the turntable 9 for transferring full bobbins 3 to a transport device 11 extending along the slubbing machine and for transferring empty cores 25 from the transport device 11 to the turntable 9, the mutual spacing of the grippers 5 of the gripping and pivoting device 30 being variable by means of an adjusting device. According to the invention, the mutual spacing of the grippers 5 is varied in a first direction by the adjusting device 30 of the gripping and pivoting device, the turntable 9 being equipped with a further adjusting device 50 which varies the mutual spacing of the receiving spindles 51, 51' in a second direction orthogonal to the first direction. 
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