baber/WOPTO huggingface dataset:
Patent EP-0349970-A2 (EP)
Inventor: REEMTSEMA KARL-DIETER DIPL-ING
IPC: B61D45/00
Filed: 1989-07-04
Abstract: The invention relates to a railroad freight car having hoods covering the freight room which slide over each other and lie in one plane in the closed position. The hoods are liftable, swivelable and can be put down on rollers which engage rails by means of an actuation arrangement. The hoods, are split at their apex where they have joints and a sealing element. The railroad freight car is provided with separation walls for securing of a load. The separation walls, are movable on rollers running in rails on the freight floor, on both sides of the center portal in the freight floor and can be arrested at the bottom by releasable pegs in the floor and at the top by means of swivelable locking cams in the hood.
Patent EP-0356858-A2 (EP)
Inventor: GOSCH HANS-JUERGEN DR
IPC: C07C29/86
Filed: 1989-08-19
Abstract: Process for the separation of cyclohexanol by extraction from aqueous solutions containing this and aromatic sulphonic acids, characterised in that mixtures of
 a) at least one liquid aliphatic, cycloaliphatic or aromatic hydrocarbon, halchlorohydrocarbon or ether, which is inert under the extraction conditions and
 b) at least one phenol are used as extracting agents.
Patent EP-0356949-A2 (EP)
Inventor: GOSCH HANS-JURGEN DR
IPC: C07C29/80
Filed: 1989-08-26
Abstract: Process for the separation of cyclohexanol from aqueous solutions which contain it and aromatic sulphonic acids and which have been obtained by hydration of cyclohexene in aqueous solutions of aromatic sulphonic acids at elevated temperature and subsequent removal of excess cyclohexene, by steam distillation, characterised in that
 a) the aqueous solution containing cyclohexanol and aromatic sulphonic acids is fed to the upper third of a first column and 1 to 50 parts by weight of steam per part by weight of cyclohexanol are fed to the lower third of the column, and the vapours essentially consisting of cyclohexanol, cyclohexene and water are drawn off at the top of the column, and an aqueous solution of aromatic sulphonic acids is obtained at the bottom
 b) the vapours essentially consisting of cyclohexanol and cyclohexene plus water are condensed and
 b1) a phase rich in cyclohexanol and
 b2) an aqueous phase are obtained
 c) the aqueous phase (b2) is used for generating the steam required in stage a, and any residue which remains is used for the hydration of cyclohexene, and
 d) the phase rich in cyclohexanol (b1) is distilled in a second column to give a mixture of cyclohexene, water and, where appropriate, cyclohexanol at the top, and cyclohexanol as bottom product.
Patent EP-0366001-A2 (EP)
Inventor: JOHNSON GENE HARLOW
IPC: H04N5/445
Filed: 1989-10-19
Abstract: A commercial message timer (114), when enabled by a user, stores data indicative of a first tuned station and begins timing a predetermined time period. Upon expiration of the time period, the first tuned station is automatically reselected if it had been deselected after the timer was enabled. In this way a user can avoid a commercial message on a first channel by setting the timer and scanning through other channels, and yet have the receiver return automatically to the first channel at the end of a time period substantially equal to that of a typical commercial message. In another embodiment employing PIX-IN-PIX circuity, the subject apparatus is responsive to an occurrence of (1) enabling the timer and (2) changing channels, in that order, for automatically moving the desired channel to the inset position. In response to the expiration of the timer period, the program displayed in the inset position is automatically returned to the main display position.
Patent EP-0362960-A2 (EP)
Inventor: YOSHIMOTO MASAFUMI SAKAI CHEMI
IPC: B01J23/58
Filed: 1989-10-03
Abstract: A denitrizing catalyst which comprises:
     (a) an alkali metal oxide or an alkaline earth metal oxide in amounts of 50-90 % by weight as oxides;   (b) at least one metal oxide selected from the group consisting of Co₃O₄, Cu₂O, Cr₂O₃, Mn₂O₃, NiO, PbO, Bi₂O₃, MoO₂, Al₂O₃, SiO₂, ZrO₂, Fe₂O₃, TiO₂, WO₃, MoO₃, SnO₂ and ZnO in amounts of 5-50 % by weight as oxides; and   (c) at least one metal or at least one oxide of metals selected from the group consisting of Ru, Rh, Pd, Ag, Pt and Au in amounts of 0.01-10 % by weight as metals.   
     Nitrogen oxides contained in waste gases are denitrized effectively by putting the gases into contact with the catalysts in the absence or presence of carbon monoxide as a reducing agent.
Patent EP-0331501-A2 (EP)
Inventor: IMAI ISAMU
IPC: B60C9/22
Filed: 1989-03-02
Abstract: In a pneumatic radial tire, cords used in at least one carcass ply (4) and/or at least one additional cord reinforcing layer (5) disposed on a belt layer (2) are made from composite fiber having a core of polyester and a sheath of polyamide. The polyester has an intrinsic viscosity of at least 0.8 and the weight ratio of the core to the core + sheath is 0.3-0.9.
Patent EP-0351246-A2 (EP)
Inventor: PETERSEN LARS CHRISTIAN
IPC: C07K14/00
Filed: 1989-07-14
Abstract: A tissue plasminogen activator (t-PA) analogue in substan­tially inactivated one-chain form capable of being con­verted to the active two-chain form is modified in the region from position 414 to position 433. In particular, the t-PA analogue is one in which a positively charged amino acid residue in position 419 and optionally also in position 420 has been replaced by a negatively charged or uncharged amino acid residue to inhibit interaction with the amino acid residue in position 480.
Patent EP-0354070-A2 (EP)
Inventor: VAN KAZUO
IPC: G11B7/24035
Filed: 1989-08-07
Abstract: The invention provides an optical recording medium (2) and a method of recording, reading, and erasing information to an optical recording medium, where in­formation is recorded, read, and erased to the recording medium by applying beams projected from a light source capable of varying wavelength of beams. The recording medium contains at least two kinds of organic compounds each presenting photochromic phenome­non and being dispersed in binder. By projecting beams onto the optical recording medium, recording, reading, and erasure of information making use of a photochromic phenomenon can be executed independent­ly against each organic compound dispersed in the recording medium. As a result, the optical recording medium promotes to increase the information recording density in proportion to the number of the kind of organic compounds.
Patent EP-0360471-A2 (EP)
Inventor: METZGER MARK G
IPC: A61M25/00
Filed: 1989-09-08
Abstract: A connector body (26) with a first (28) end and a first part (27) thereon and a second end (31) and a first part (30) thereon includes a passageway (36) aligned along an axis passing through the first end and part. Openings (18, 19) in second part permit communication from the first end to the second end since the openings extend from the second end to at least the passageway. A male luer taper (29) located on the first part about the passageway tapers outwardly of the axis from the first end to a annular groove (34). A luer nut (23) with an internally threaded collar (25) and an apertured flanged portion (24) seats within the groove permitting rotary but not axial movement of the luer nut relative to the taper.
Patent EP-0385213-A2 (EP)
Inventor: DOERING RALF
IPC: E05B15/04
Filed: 1990-02-19
Abstract: The invention relates to an espagnolette lock with espagnolettes which are displaceable as a result of the rotation of the latch or the like, and with a follower which is assigned to the latch and which, held in its basic middle position, is pivotable out of this in the opposite direction counter to a spring load, the lock case carrying a face plate continuing, on the far side of the lock case, in the form of freely projecting face-plate portions, behind which are guided the espagnolettes which control additional closing members, for example pivoting bolts, arranged in the region of the face-plate portions, in such a way that these closing members are actuated both as a result of the rotation of the latch and as a result of the freeing of at least one force accumulator, loading the espagnolettes, by means of a release actuated by the frame or the like during the closing of the door, and proposes, for the convenient positionability of the release even when the espagnolette lock is of only small depth, that the release (62) and/or the force accumulator (55) be arranged on the rear side of the free projecting face-plate portions (1'). <IMAGE>
Patent EP-0387626-A2 (EP)
Inventor: WEGMERSHAUS WOLFGANG
IPC: G03B17/30
Filed: 1990-03-02
Abstract: A film cassette consisting of an approximately cylindrical casing with a film mouth consisting of upper lip and lower lip running transversely across the jacket, rotationally symmetrical caps located on the ends and a film spool inside the cassette, at least the upper lip of the film mouth being covered with velvet which projects laterally from the mouth, and the casing having cutouts on both sides in the place where the upper lip of the film mouth begins but then widening increasingly to the end of the upper lip to the original dimension, as a result of which there are formed at the sides of the upper lip triangles which are bent by approximately 90 DEG  in the direction of the lateral openings of the film mouth in such a manner that the bending edge lies approximately flush with the inner edge of the cap, is better protected against light penetration than conventional cassettes and can be produced with lower fault rates. <IMAGE>
Patent EP-0387684-A2 (EP)
Inventor: MOUNT BRUCE E
IPC: G01N21/35
Filed: 1990-03-07
Abstract: A gas analyzer (10) for detecting low concentrations of a specific gas which has a sample chamber comprising passages (14, 30, and 32) through which radiant energy is directed and which is pressure modulated by a loud speaker (36) both of which provide a radiant energy signal which is detected by a beam splitter (82) having a measurement channel (86) directed to a measurement detector (92) and a reference channel (84) with a reference cell (94), containing gas of the type being analyzed, directed to a reference detector (90). Both detectors (92, 90) produce a signal which is processed by an algorithm. The loudspeaker (36) is isolated from the sample chamber by a flexible diaphragm (42) to eliminate phase changes in the pressure modulated output of the loud speaker (36). Means are provided for measuring the modulation or AC pressure and the steady state or DC pressure in the sample chamber, the radiant energy modulation, the humidity in the sample chamber and the temperature of the analyzer as parameters for processing. by the algorithm. 
     Also disclosed is a method of detecting low concentration of a specific gas.
Patent EP-0399237-A2 (EP)
Inventor: ROMER HANS
IPC: A61C3/16
Filed: 1990-04-26
Abstract: The dental appliance is provided with a bore which extends from a side surface of the dental appliance in the direction of a tooth stump. The bore preferably has an oval cross-section and has its opening on the inner side of the tooth (palatinal or lingual). The bore runs either between the occlusion surface of the dental appliance and the tooth stump, or it ends on a side surface of the tooth stump. An instrument for removing a dental appliance connected to the tooth stump comprises an end-piece provided with an edge which can be supported on the tooth stump and with a surface area which can be made to bear, in the region of the bore, on surfaces of the dental appliance. <IMAGE>
Patent EP-0402866-A2 (EP)
Inventor: HAYASHI YOSHITAKA
IPC: D21H11/18
Filed: 1990-06-12
Abstract: The organic microfibrilated material comprises fibers having a variety of thicknesses, having a Shopper's Rieglar of 40 degree SR or greater, having a T value of 15 or greater when the fibers are formed in a filter sheet. This is useful for filter.
Patent EP-0409262-A2 (EP)
Inventor: ISHIDA YASUSHI C O CANON KABUS
IPC: B41J17/12
Filed: 1990-07-20
Abstract: A thermal transfer recording apparatus for recording an image on a recording medium (11) by transferring ink of an ink sheet (14) which is characterized by being provided with recording means (13) ink sheet conveying means (25), loading means (85) for applying load on the ink sheet (14) and recording medium conveying means (24), wherein the said ink sheet (14) is conveyed by the tension produced by the friction between the ink sheet (14) and the recording medium (11) and by the action of the loading means (85).
Patent EP-0420251-A2 (EP)
Inventor: KAKITANI TSUTOMU
IPC: H05B41/392
Filed: 1990-09-27
Abstract: A discharge lamp lighting device includes a pair of main switching transistors (Q1a, Q1b) and a feedback transformer (T1). Each of the main switching tran­sistors (Q1a, Q1b) has a control electrode to form a push-pull circuit and which is switched on and off responsive to a given oscillating frequency. The feedback transformer (T1) has a pair of drive windings and serves to positively feed back the output of the push-pull circuit to each of the control electrodes of the paired main switching transistors (Q1a, Q1b). A first control circuit is connected to each of the bases of the main switching transistors and includes a variable impedance element (Q3a, Q3b) to control the oscillating frequency by varying the impedance of this variable impedance element (Q3a, Q3b). A second control circuit (LS) has a level shift circuit and serves to control the level of signal applied to the first control circuit so as to change the impedance of the variable impedance element (Q3a, Q3b) so that the on-off opera­tion of each of the paired main switching transistors (Q1a, Q1b) can be controlled.
Patent EP-0421438-A2 (EP)
Inventor: KODEN MITSUHIRO REINBOU MANSHY
IPC: G02F1/13
Filed: 1990-10-04
Abstract: An improved ferroelectric liquid crystal device comprising a pair of substrates each provided with voltage applying means, at least one of the substrates having an orientation control layer, and a ferroelectric liquid crystal layer disposed between the pair of substrates, the ferroelectric liquid crystal layer comprising specific γ-lactone derivatives, which is useful as a liquid crystal shutter, liquid crystal display device or the like.
Patent EP-0433860-A2 (EP)
Inventor: LAHODA EDWARD JEAN
IPC: G21C19/46
Filed: 1990-12-12
Abstract: Sodium silicate (waterglass) is added to a waste process stream containing metal to form a waterglass sludge containing the metal contaminants. The waterglass sludge matrixed with the metal is removed from the stream. Thereafter, a caustic is added to the separated waterglass sludge which dissolves the sodium silicate, leaving a metal solid in suspension. The sodium silicate solution is filtered off and recycled for use in the waterglass precipitation process. The metal solid remains and concentrated acid is added to form a metallic acid solution which is substantially free of silicates. This solution may then be treated by solvent extraction or other means to recover the metal. The process provides substantial metal recovery from the process waste stream and eliminates the need for burial of the waste, thereby eliminating burial costs.
Patent EP-0393772-A2 (EP)
Inventor: CORN IAN
IPC: C11D3/30
Filed: 1990-04-13
Abstract: Hard surface cleaning compositions are disclosed which comprise anionic surfactants ammonium salts, monoethanolamine or diethanolamine or triethanolamine or mixtures thereof and a solvent system; the compositions herein have an alkaline pH.
Patent EP-0399841-A2 (EP)
Inventor: KUNEY CLARK G JR C O MINNESOTA
IPC: G02B5/128
Filed: 1990-05-25
Abstract: Microsphere-based retroreflective articles having exceptionally high retroreflective brightness, particularly at divergence angles of up to 0.5° may be made by selection of microspheres having defined combinations of average diameter and average refractive index.
Patent EP-0412830-A2 (EP)
Inventor: FRISCH ARNOLD M
IPC: H01L33/00
Filed: 1990-08-09
Abstract: A low distortion optic fiber network having a feedback system which injects pilot tones into a base band input signal directly modulating an LED, optically detects the output resulting from the pilot tones, digitally samples the detected signal, and generates correction coefficients. The correction coefficients and the base band input signal are input to a correction circuit that pre-distorts the input signal in a non-linear manner and uses the distorted signal to modulate the LED. Pre-distorting the LED input signal compensates for the non-linearities of diode transfer characteristics and intermodulation between signals in the network thereby reducing harmonic and intermodulation distortion.
Patent EP-0415784-A2 (EP)
Inventor: ARNOTH FRANK WILLIAM
IPC: G05D16/06
Filed: 1990-08-31
Abstract: A compact, light weight, gas flow control system for fluid communication with a source of breathable gas consisting of pressure reducing and regulating means, means to initiate gas flow to a breathing bag, means to rapidly inflate the breathing bag, and means to sense breathing bag deflation and initiate re-inflation.
Patent EP-0448981-A2 (EP)
Inventor: HIKOSAKA KOHKI
IPC: H01L29/43
Filed: 1991-03-01
Abstract: A semiconductor device comprises a substrate (11), a channel layer (13) made of an undoped first semiconductor material containing InAs, an electron supplying layer (14) provided on the channel layer (13) and forming an heterojunction therewith, source, drain and gate electrodes deposited on top of the semiconductor structure. 
     The electron supplying layer (14) is made of a second semiconductor material lattice matched to the first semiconductor material and is doped n-type in order to induce a two-dimensional electron gas (2DEG) in the channel layer (13) at the heterostructure interface. 
     In order to prevent the formation of a two-dimensional hole gas (2DHG) in the electron supplying layer (14) when the second semiconductor material is selected to have an upper edge of the valence band higher than the lower edge of the conduction band of the first semiconductor material, said second material is doped to such a concentration level that the Fermi level falls between the conduction and valence bands of said second material. 
     Alternately, when the second semiconductor material is selected to have an upper edge of the valence band lower than the lower edge of the conduction band of the first semiconductor material, a 2DHG is never formed whatever the doping concentration of said second material is. 
     Exemplarily, said second material can be AlGaSb, GaAsSb, AlGaAsSb, AlInAs, ZnSeTe or InPAs.  Said first material can be InAsSb.
Patent EP-0452856-A2 (EP)
Inventor: FUJITA YUTAKA
IPC: G03G15/16
Filed: 1991-04-15
Abstract: The present invention is applied to an electrophotographic apparatus, wherein a photosensitive body (12) charged by a charger (13) is exposed to light emitted from an exposer (14), for the formation of an electrostatic latent image, and wherein the electrostatic latent image is developed by a developer (15) and the image developed by the developer is transferred onto a paper sheet (20) by a transfer charger (16). The transfer charger (16) of the apparatus is made up of a converter transformer (41), a switching circuit (31-36) for controlling the excitation of the converter transformer (41), and an error detector (43), arranged in association with the converter transformer (41), for detecting an error voltage (V1) corresponding to a transfer voltage (V0). The apparatus is comprised of a separately (or externally) excited converter (41-43) which outputs the transfer voltage (V0) from the secondary winding of the converter transformer (41), an input section (26) from which one of the print density levels that are predetermined stepwise is designated, and a control section (31) for controlling the frequency and duty ratio of a transfer signal (S1) used for causing the switching circuit (31-36) to perform a switching action, in accordance with the print density level designated from the input section (26) and the error voltage information supplied from the error detector (43).
Patent EP-0454004-A2 (EP)
Inventor: YOSHIDA TATSUSHI
IPC: C08G59/02
Filed: 1991-04-20
Abstract: A polyarylate comprising units derived from an aromatic carboxylic acid compound and units derived from a bisphenol compound and containing an epoxy group. According to the process of the present invention, the polyarylate having epoxy group can be economically prepared, by reacting a polyarylate carrying an acid chloride group with a compound having both hydroxyl and epoxy groups. Since the polyarylate of the present invention has epoxy group, it has the reactivity with amino group, hydroxyl group, acid anhydride group, or the like. Therefore, the polyarylate is mixed with another polymer to give a polymer alloy or is utilized as the precursor of a graft-copolymer, utilizing the reactivity.
Patent EP-0456099-A2 (EP)
Inventor: MARZ DANIEL
IPC: H03D3/02
Filed: 1991-05-01
Abstract: An on channel frequency agile PLL demodulator is provided using a precise and stable oscillator (82), such as a VCXO having its output frequency variable over a limited range. The output of the oscillator is multiplied (84) by a multiplication factor to produce a mixing frequency. The multiplication factor scales the limited range of the oscillator to produce a proportionate mixing frequency deviation. A frequency synthesizer (90) is used to enable the demodulator to detect signals on different channels. In one embodiment, the output of the frequency synthesizer (90) is mixed with the scaled oscillator output to provide a mixing frequency (fn) having a fixed deviation for all channels.
Patent EP-0466021-A2 (EP)
Inventor: D ELSA UWE
IPC: G01P15/135
Filed: 1991-07-04
Abstract: In an acceleration switch for closing at least one pair of electrical contacts (6', 6'') by means of an inertia mass (1) acting on a spring, the spring and the inertia mass (1) being selected that the acceleration switch does not respond until an acceleration force acting on the inertia mass (1) exceeds a predetermined value, the spring is a monostable snap-action element (4). An elastic buffer element (10), which can contain an elastomeric material and/or a delay spring (12), can be provided on the side of the inertia mass (1) facing the snap-action element (4). Subject to suitable arrangement of the snap-action elements (4) and of their associated pairs of contacts (6', 6''), the acceleration switch can respond to accelerations in any desired spatial direction. <IMAGE>
Patent EP-0452074-A2 (EP)
Inventor: COHEN MARLENE LOIS
IPC: A61P9/12
Filed: 1991-04-09
Abstract: This invention provides N-(2-hydroxycyclopentyl)-1-isopropyl-6-methylergoline-8-carboxamides useful for blocking 5HT₂ receptors in mammals having an excess of serotonin centrally or peripherally. The invention also provides methods for treating sexual dysfunction, hypertension, migraine, vasospasm, thrombosis, ischemia, depression, anxiety, sleep disorders and appetite disorders with a compound of the invention.