baber/WOPTO huggingface dataset:
Patent EP-0240172-A2 (EP)
Inventor: DISSER ROBERT JOHN
IPC: H02P7/29
Filed: 1987-03-04
Abstract: A pulse width modulated DC motor operating circuit is disclosed which reduces the communication back to the power supply of transient spikes caused by the switching characteristics of a freewheeling diode (3l). The switched current path comprises, in series, a DC power supply, a low pass filter (l3, l6-22) including charge storage means, a DC motor (l0) armature, a FET (25) and a resistor (26). The freewheeling diode is connected across the motor armature. PWM signal generating apparatus (l2) switches the FET to control average motor armature current. A capacitor (32) is connected across the FET and diode with minimal lead length to reduce stray inductance. The capacitor is effective to communicate voltage shifts across the resistor with FET switching to the cathode of the freewheeling diode and thus serve as a source of supplemental current flow through the freewheeling diode during diode switching partially in preference to the charge storage means of the low pass filter, whereby the diode switching voltage spikes communicated through the low pass filter to the DC power supply are reduced in amplitude and frequency and RFI is reduced. The resistor, along with another low pass filter (28, 30), also provides an average motor armature current signal for current limiting circuitry and thus serves a dual function in the circuit.
Patent EP-0250069-A2 (EP)
Inventor: HUNTER ANDREW F
IPC: B63B35/44
Filed: 1987-04-07
Abstract: A method of using a floating platform (12) in deep (1000-3000 feet) water as a drilling/workover and production platform. By interconnecting the subsea wellheads of at least one template (16) to the platform using flexible production risers (26) connected through a reverse loop, the platform may be adjusted on its moorings to position the platform directly over a second template (18) for subsequent drilling or workover. This eliminates the need for separate drilling platforms and workboats. Further, wells of separate templates can be serviced separately and the entire field production need not be completely curtailed during such a workover.
Patent EP-0264181-A2 (EP)
Inventor: TSUTSUMI TOMIO
IPC: B65D39/06
Filed: 1987-08-26
Abstract: A packing container (10) having a spherical packing (20) which is inserted in a mouth (13) of the container to seal the mouth and which has a rigid core and an elastic covering which surrounds the core.
Patent EP-0266204-A2 (EP)
Inventor: THAKORE YATIN B
IPC: B01D65/08
Filed: 1987-10-29
Abstract: Pressure-dependent anisotropic behavior is provided by a size selective separation membrane system comprising at least two successive porous layers. The first layer comprises a soft, elastic, effectively porous material, and the second layer comprises a substantially rigid porous material. When positive pressure presses the first layer against the second layer, the second layer serves as a rigid support for the first layer, and the first layer is compressible to reduce its effective pore size. The first layer material is characterized by: a) a durometer hardness lower than about 50 (Shore A) and an effective pore size between about 0.001 micron and 0.1 micron when the material is in an unstressed condition; b) sufficient compressibility that, when a pressure differential of 500 psi is applied across its thickness, the first layer reversibly compresses at least 10%, thereby reducing its effective pore size; c) sufficient compressibility, that, when a pressure differential of 100 psi is applied across the thickness of the system, the effective flow rate is reduced by a factor of at least 20 compared to the flow rate when 100 psi is exerted in the opposite direction. A substance can be separated from a liquid mixture using the membrane system, by:   positioning the second layer of the membrane system in contact with the mixture; exerting pressure on the mixture to force liquid with the substance first through the pores of the rigid layer and then through the pores of the soft layer of the membrane system; and reversing the flow through the membrane system by exerting pressure on the resulting filtrate, in a manner to compress the soft material sufficiently to reduce the pore size to prevent passage of the substance. The membrane system is manufactured by coagulating the layers from polymers in solution.
Patent EP-0274205-A2 (EP)
Inventor: TELFAIR WILLIAM B
IPC: B23K26/06
Filed: 1987-11-20
Abstract: In the context of ultraviolet-laser sculpting of the cornea to achieve optical correction through a newly shaped anterior surface, the invention subjects the laser beam (10) to certain shaping and homogenizing operations prior to any attempt to specially characterize the beam for a particular sculpturing procedure. In a preferred embodiment, the shaping and homogenizing operations present a tolerably homogeneous beam (10') of enlarged dimension, so that specialty-characterizing may proceed on a dimensional scale that is greater than the corres­ponding dimension of ultimate surgical delivery to the eye (13), thereby enabling greater control of the quality of specialty-characterizing. Provision (40) is made for selectively monitoring the quality of the homo­geneity and/or beam shape of the specially-characterized beam, with further provision (38) for automated cutoff of laser beam delivery to an eye in the event that quality is not within predetermined limits of tolerance. And preferably, all beam shaping, homogenizing and character­izing operations proceed in a controlled environment which precludes ozone development and thus minimizes the beam-degrading effect of ozone and particulates or other contaminants.
Patent EP-0272879-A2 (EP)
Inventor: NONNWEILER EDWARD DEAN
IPC: H05G1/46
Filed: 1987-12-17
Abstract: An exposure control module (26) for an X-ray imaging system includes a timing and sequence controller (48) communicating with external elements of the system on a parallel data bus. The timing and sequence controller (48) employs a plurality of stored recipes for advancing the system through a selected mode of operation. Changes in certain of the external signals on the parallel data bus may be recognized by an interrupt handler to transfer the attention of the system. The amount of hardware required for recognition of a significant change is reduced by converting a sample of the bus data into a plurality of sets of parallel data, and storing each set in separate multiplexers (78, 80, 82). A further plurality of sets of data from a preceding sample are applied to a corresponding further set of multiplexers (88,90,92). The serial data in corresponding pairs of present-status and previous-status multiplexers is read out in parallel to a logic array. The logic array also receives mask signals (68) effective to enable or inhibit selectively the recognition of positive-going and negative-going changes in the data from sample to sample. When an enabled change is detected, an interrupt (70) is generated. The actual bus signal con­ditions (62) are compared with desired bus signal conditions (72). Once coincidence between the actual and desired conditions is achieved, a recipe process is executed.
Patent EP-0235016-A2 (EP)
Inventor: USHIZAWA NORIHIKO
IPC: G01N27/49
Filed: 1987-02-04
Abstract: An oxygen sensor includes an electrically conductive substrate directly coated with an electrolytic oxidative polymeric membrane, which contains a porphyrin compound and a metal complex thereof. Also provided is an oxygen sensor capable of being subjected to a temperature calibration and including an oxygen electrode consisting of an electrically conductive substrate directly coated with a porphyrin derivative compound and a metal complex compound thereof, a reference electrode, a gelled polymeric electrolyte in which the oxygen electrode and reference electrode are immersed, and an oxygen-selective permeable membrane coating the gelled polymeric electrolyte.
Patent EP-0281872-A2 (EP)
Inventor: CHRIST RICHARD DR
IPC: G21F9/00
Filed: 1988-02-26
Abstract: Use is made as a reception arrangement for radioactive substances, especially spent fuel elements, in transport or storage containers of individual parts which can be connected to one another, are constructed as regular prisms, and have a central cylindrical bore for accepting the radioactive substances.
Patent EP-0282959-A2 (EP)
Inventor: SHUTSKE GREGORY MICHAEL
IPC: A61P25/28
Filed: 1988-03-15
Abstract: There are disclosed compounds having the formula
      wherein n is 1-4; X is alkyl of 3-18 carbon atoms, cycloalkyl of 3-7 carbon atoms or cycloalkylloweralkyl; R is hydrogen, loweralkyl or loweralkylcarbonyl; R₁ is hydrogen, loweralkyl, loweralkylcarbonyl, aryl, diloweralkylaminoloweralkyl, arylloweralkyl, diarylloweralkyl, oxygen-bridged arylloweralkyl or oxygen-bridged diarylloweralkyl; stereo isomers thereof and pharmaceutically acceptable acid addition salts thereof, which are useful for enhancing memory, methods for synthesizing them, and pharmaceutical compositions comprising an effective memory enhancing amount of such a compound.
Patent EP-0294545-A2 (EP)
Inventor: NAKATSU KEIJI MITSUBISHI DENKI
IPC: G11B21/12
Filed: 1988-03-23
Abstract: An optical disk drive device positions a carriage carrying an optical head for directing a light beam towards an optical disk having tracks for information storage and for receiving a reflected beam from said optical disk. The optical disk device includes a retract means (30) comprising a signal instruction circuit (14) for providing the number of tracks to be traversed, an access start instruction and a retract instruction and a reference voltage generating circuit (15) responsive to these instructions to provide the residual track number and a carriage moving signal and operating such that, immediately before the drive device is stopped from operating the carriage mounting the optical head thereon is moved by the access operation from any track to a first predetermined position according to the access start instruction and then moved from the first predetermined position to a second predetermined position according to the retract instruction at a predetermined reference speed.
Patent EP-0291777-A2 (EP)
Inventor: SAKATA SEIJI
IPC: H04N1/00
Filed: 1988-05-05
Abstract: A copier with an optional facsimile function is constructed such that when the facsimile function completes the reception of facsimile data while no manipulation is performed for a predetermined period of time in a copy mode, the facsimile data received are printed out. When the reception of facsimile data by the facsimile function while the copier is in a preheat mode, those facsimile data are also printed out.
Patent EP-0293919-A2 (EP)
Inventor: LESCH DAVID ALLEN
IPC: C01B39/54
Filed: 1988-06-03
Abstract: Aluminophosphate-containing microporous crystalline compositions are prepared by hydrothermal crystallization from aqueous solutions containing reactive sources of aluminum and phosphorus and organic templating agent.
Patent EP-0297613-A2 (EP)
Inventor: FUJIKURA TAKASHI
IPC: C07D213/80
Filed: 1988-07-01
Abstract: The present invention provides a pyridine derivative of following general formula (I) or a physiologically acceptable acid addition salt thereof:
      wherein R₁ is a hydrogen atom or a hydroxy group, R₂ and R₃, which may be the same or different, each is a lower alkyl group, and n is an integer of 1 to 6, a process for production thereof and a pharmaceutical composition containing the same. The compounds (I) possess anti-­arrhythmic activity.
Patent EP-0314168-A2 (EP)
Inventor: YOSHIYUKO ETOH
IPC: B60W30/00
Filed: 1988-10-28
Abstract: A system and method for automatically controlling a vehicle speed to a desired cruise speed are disclosed in which whether a microcomputer of a control unit is enabled to perform a cruise speed control is determined on the basis of a plurality of determining factors and a power supply of a throttle actuator for actuating an engine throttle valve so as to adjust an opening angle of the throttle valve is enabled only when all of the determining factors satisfy a condition of enabling the cruise speed control via the actuator and is disabled when at least one of the determining factors does not satisfy the condition.
Patent EP-0322740-A2 (EP)
Inventor: TUSS JOHN JOSEPH
IPC: G01B5/008
Filed: 1988-12-21
Abstract: A coordinate measuring machine (10) having a pneumatic probe counterbalance system housed within the probe shaft (14) is disclosed, the system including a piston (54) fit into a cylinder (30) extending along the length of the probe shaft (14). The piston (54) is fixed so that air pressure acts on a cylinder end cap (32) to counterbalance the weight of the probe assembly (12). A stationary tube (34) extends into the cylinder (30) from above the piston (54) and directs a source of regulated air pressure to the cylinder interior (58) from a fluid pressure fitting (48) connected to the upper end of the tube (34). The piston (54) is at least partially spherically shaped and the tube (34) is supported by a spherical bearing (42) to accommodate misalignment of the tube (34) and cylinder (30) without binding during movement of the probe shaft (14). A length of wire (56) is connected at one end to the piston (54) and extends upwardly through the tube (34), and is fixed at its upper end to anchor the piston (54).
Patent EP-0322835-A2 (EP)
Inventor: SCHROCKER RAINER DIPL-ING
IPC: H02P3/24
Filed: 1988-12-24
Abstract: A braking circuit for machine tools, which is fitted with a plurality of AC motors, particularly fast-running AC motors, contains a rectifier (9), to whose input AC is applied, an electronic switch (1), connected in series with at least one field winding (13) of the AC motor, and a freewheeling diode (12), connected in parallel with the field winding (13). In this arrangement, the DC voltage supplied by the rectifier (9) is applied to the field winding (13) through the electronic switch, in a controlled on/off mode. In order to increase the possible power factor of the current flowing through the field winding (13) with a defined root-mean-square level, a transformer (2) is connected to the input side of the rectifier (9) and the output voltage emitted to the rectifier (9) is smaller than that which is supplied into the transformer (2). <IMAGE>
Patent EP-0314209-A2 (EP)
Inventor: BRAVO FRANCESCO
IPC: A23G9/28
Filed: 1988-09-30
Abstract: An icecream dispenser comprises at least a refrigerated chamber (11) closed by a hatch or gate featuring a delivery tap, which chamber is adapted to house in a removable manner an icecream cartridge (25) containing a quantity of icecream (24), on which cartridge there act pressing means able to dispense a dose of icecream through the aperture of the said delivery tap. The said pressing means comprise an air chamber housed within the said refrigerated chamber and featuring a piston-type wall (20) adapted to act on the base of the said icecream cartridge, the said air chamber being connected to a source of compressed air external to the refrigerated chamber. The icecream cartridge consists of a container made of suitable flexible material.
Patent EP-0277787-A2 (EP)
Inventor: GAMOW R IGOR
IPC: A61G10/02
Filed: 1988-02-01
Abstract: A portable hyperbaric chamber that allows a person to perform endurance exercise at barometric pressures of from 0 to 10 lbs./square inch greater than ambient. The chamber is portable, semi-spherical and inexpensively constructed of an essentially air-impermeable, flexible material. The chamber is used for endurance conditioning, to improve the athletic performance of people who live at altitudes above sea level.
Patent EP-0278665-A2 (EP)
Inventor: SAITO SHINICHI
IPC: G02F1/13
Filed: 1988-02-02
Abstract: 2-Substituted-alkyl ethers having an optically active group and useful as components of ferroelectric liquid crystal compositions and liquid crystal compositions, have the formula:
     
     in which R 1  is a straight or branched chain alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl group containing up to 18 carbon atoms;   R 2  is a straight or branched C 2 -C 15  alkyl group,
     are each
     (in which Y is a halogen atom or a methyl or methoxy group);   X is a fluorine, chlorine or bromine atom or a group
     (in which R 3  is a straight or branched C 1 -C 10  alkyl group or a hydrogen atom); and indicates an asymmetric carbon atom.
Patent EP-0279605-A2 (EP)
Inventor: BLANCHARD RICHARD A
IPC: H01L29/41
Filed: 1988-02-12
Abstract: A semiconductor device has a substrate with regions (54, 56) of first and second conductivity types forming a junction (58) extending to a surface (60) of the substrate, an oxide layer (66, 68) on the surface and covering the junction and a charged ion region in the oxide layer extending from adjacent the junction at the surface of the substrate over part of the region (54) of first conductivity type, the polarity of the ions in the ion region being that of the region of first conductivity type, whereby the breakdown voltage of the device is increased.
Patent EP-0294952-A2 (EP)
Inventor: KRUCKEMEYER WILLIAM CHARLES
IPC: F16F9/46
Filed: 1988-05-19
Abstract: A hydraulic damper for adjusting the damping force which incorporates a piston (44) operatively for stroking movement within a cylinder tube and partitioning the cylinder tube into separate chambers with first valving means (96) interconnecting said chambers for determining the damping force of said unit and bypass passage means (120,134,136,140) extending through the upstanding neck (42) of the piston for controlling the efffective passage area of the bypass passage and generating a family of curves for controlling and selecting the damping force of the damper.
Patent EP-0314275-A2 (EP)
Inventor: AJISAWA YUKIYOSHI
IPC: C07D401/12
Filed: 1988-08-18
Abstract: 2-Pyrrolidone-5-carboxylic acid compounds represented by the general formula:
      wherein A represents a phenyl group which may have a halogen atom on the ring as a substituent, or a pyridyl group, n represents an integer of from 1 to 4, Y represents -O- or -NH-; and pharmaceutically acceptable salts thereof. These compounds are useful for the treatment of dementia and amnesia.
Patent EP-0316204-A2 (EP)
Inventor: WILKINSON STANLEY BRUCE
IPC: H02H7/26
Filed: 1988-11-11
Abstract: A protective relay for detecting faults within a predetermined protected zone of a three phase alternating current electrical power distribution system generates a polarizing signal V POL  which includes a signal V₁ related to a positive sequence component of a phase voltage of the three phase power distribution system. A signal I₁Z R , which is a signal related to a positive sequence component of a phase current of the three phase power distribution system multiplied by a replica impedance of the protected zone of the three phase power distribution system, is also generated. The coincidence of the V POL  and I₁Z R  signals are compared and an operate signal is generated as a result of positive coincidence. A first restraint signal is generated as a result of negative coincidence. A second restraint signal related to V₁ is also generated. A net operating signal is generated when the magnitude of the operate signal exceeds the sum of the magnitudes of the first restraint signal and the second restraint signal.
Patent EP-0287471-A2 (EP)
Inventor: HAYASHI YOSHIO
IPC: C07D223/04
Filed: 1988-04-14
Abstract: According to the present invention, there are provided novel carboxystyrene derivatives of the general formula (I):
     wherein the symbols are as defined hereinabove. Also provided herein are leukotriene antagonists and phospholipase inhibitors containing the carboxystyrene derivative or pharmaceutically acceptable salt thereof as an effective ingredient.
Patent EP-0286586-A2 (EP)
Inventor: DODGE DAVID J
IPC: A43B5/04
Filed: 1988-03-16
Abstract: A ski boot has a lower part and an upper articulated on the lower part at two opposite points which coincide with the joint of the foot. The rear part of the upper has a rounded cutaway portion which permits ample backward tilting. This cutaway portion is preferably covered by an articulated stirrup-shaped shroud connected to the upper by a rigid linking member.
Patent EP-0324450-A2 (EP)
Inventor: MITSUYASU MASAKI
IPC: F02D41/38
Filed: 1989-01-11
Abstract: A fuel injection control device comprising a fuel injector driven by a piezoelectric element. The piezoelectric element is charged with a electrons by using an LC resonant circuit, and the electrons charged in the piezoelectric element are discharged by using an LC resonant circuit. The piezoelectric element is driven before the regular injection is begun.
Patent EP-0338269-A2 (EP)
Inventor: BROWN STERLING BRUCE
IPC: C08L71/12
Filed: 1989-03-21
Abstract: Solvent-resistant resin blends with a wide variety of desirable impact and tensile properties are prepared from a polyphenylene ether having a low proportion of unneutralized amino nitrogen, a mixture of a poly(alkylene dicarboxylate) and a polyarylate, and, optionally, at least one elastomeric polyphenylene ether-compatible impact modifier.
Patent EP-0336317-A2 (EP)
Inventor: TAKAHASHI YOHNOSUKE
IPC: H04N1/21
Filed: 1989-03-31
Abstract: An electronic still camera in which as a recording medium, for example, at least either one of a semiconductor memory (40), an optical memory (36), and a magnetic memory (58) is selected so as to record a video signal therein. Through the selection of the recording medium (40, 36, 58), it is possible to desirably set the recording speed and the recording capacity.
Patent EP-0348610-A2 (EP)
Inventor: GOSSLINGHOFF REINHARD
IPC: B65H31/08
Filed: 1989-04-07
Abstract: The stacking apparatus consists of the stacking unit (10) and the package forming unit (12) arranged below it. Seen in the direction (F), there is arranged at the end of the prestacking space (14) a boundary element (20) which serves as a stop for the folds (30) of the printed products (32). While the printed products (32), fed in the feeding direction (F) with their fold (30) in front, are being placed on top of each other to form a prestack, said printed products are supported approximately centrally by the support element (36) on their edge region (38) opposite the fold (30). For placing the prestack thus formed on the resting table (54), the support arms (42) are swivelled into their position of rest (42') and the slide plates (22) are moved out of the region of the stacking space (14). In this case, a residual curvature of the printed products (32) in their edge region (38) is maintained, which improves the stability of the stack. 
<IMAGE>
Patent EP-0339414-A2 (EP)
Inventor: BUCHECKER RICHARD DR
IPC: C09K19/12
Filed: 1989-04-17
Abstract: Optically active compounds of the formula <IMAGE> in which the rings A, B and C independently of one another denote 1,4- phenylene which is unsubstituted or substituted by halogen, cyano, methyl and/or methoxy and in which optionally 1 or 2 CH groups are replaced with nitrogen; R<1> represents the radical of an optically active terpene alcohol after elimination of the hydroxyl group or represents a group -(CH2)m-C<*>HX<1>-R<3>; R<2> represents the radical of an optically active terpene alcohol after elimination of the hydroxyl group or represents a group -(CH2)n-C<*>HX<2>-R<4>; m and n independently of one another represent the numbers 0 or 1; C<*> designates a chiral carbon atom; X<1> and X<2> independently of one another represent fluorine, chlorine, cyano, methyl or methoxy; R<3> and R<4> independently of one another designate a group R, phenyl or R-substituted phenyl, with the proviso that R<3> differs from X<1> and R<4> differs from X<2>; R denotes an alkyl group in which a methylene group is optionally replaced with oxygen and/or a group CH-CH is optionally replaced with a group C=C; with the proviso that R<1> and R<2> do not simultaneously designate 2-alkyl when the rings A, B and C together represent p-terphenyl, and liquid crystalline mixtures and the use for electro- optical purposes.