baber/WOPTO huggingface dataset:
Patent EP-0333078-A1 (EP)
Inventor: KNIFTON JOHN FREDERICK
IPC: C07B61/00
Filed: 1989-03-11
Abstract: A method is disclosed wherein t-butanol is reacted with methanol in a reaction zone in the presence of a catalyst to provide methyl- tert -butyl ether and the improvement of accomplishing the reaction in one-step which comprises:
     a. using a catalyst selected from the group consisting of acidic aluminas, acidic silicas, or combinations thereof and zeolites containing alumina or silica, and acidic clay mineral catalysts;   b. continuously contacting said t-butanol and methanol in a molar amount of about 0.1 to 10 moles of methanol per mole of t-butanol with said catalyst at a temperature of about 20°C to about 250°C and a pressure of about atmospheric to about 1000 psig to obtain the methyl- tert -butyl product.
Patent EP-0342380-A1 (EP)
Inventor: SCHELLER HANS-ULRICH DR
IPC: A61K8/24
Filed: 1989-04-21
Abstract: The content of soluble fluoride in toothpastes containing hydroxyapatite can be stabilised by adding 0.5 to 5% by weight of neutral sodium pyrophosphate.
Patent EP-0349952-A1 (EP)
Inventor: VAN LOON LEO
IPC: G01N1/14
Filed: 1989-07-03
Abstract: The invention relates to a pneumatic apparatus for automatically taking a fluid sample from a reservoir (5) into an ampoule (9), which is sealed with a rubber cover (8). In this arrangement, the sample can be sucked through a hollow needle (7), which is connected to the reservoir (5) via a liquid line (6) and pierces the cover (8). According to the invention, the apparatus possesses a pneumatically raisable plate (10) for receiving an ampoule, a suction needle (14) that penetrates into the ampoule during the raising of the plate being located opposite the plate. The suction needle is optionally subjected to an overpressure in order to rinse out the lines, or to an underpressure in order to suck in a sample. <IMAGE>
Patent EP-0362697-A1 (EP)
Inventor: LORINCZ EUGENE M
IPC: B65H37/00
Filed: 1989-09-28
Abstract: This invention is a dispenser (1) for a transfer adhesive. The dis­penser is less expensive to manufacture than comparable dispensers of the prior art, because it uses a single reel to perform the functions previ­ously performed by two separate elements. A supply reel (3) feeds a transfer adhesive tape (7) to a take-up reel (5), which also acts as an applicator roller. The supply and take-up reels (3, 5) are connected together such that rotation of one causes rotation of the other. The user holds the dispenser (1) so that the take-up reel (5) presses firmly against the surface onto which the adhesive (7) is to be applied. As the dispenser (1) is moved along that surface, the take-up reel (5) rotates due to friction, depositing adhesive (7) and causing the supply reel (3) to deliver more tape (7). The take-up and supply reels (3, 5) can be connected by gears (29, 31) or by a friction drive (48). If gears are used, they can be of a modified form which allows the take-up reel (5) to drive the supply reel (3) in only one direction. In another embodiment, a pinion gear (174) or a one-way pin (156) allow the supply reel (3) to rotate in only one direction. Thus, if the user accidentally moves the take-up reel (5) in the wrong direction, the supply reel (3) will not create unwanted slack in the tape (7). In all embodiments, it is preferred to use a slip clutch (15) to compensate for the differences in speeds of rotation of the take-up and supply reels (3, 5).
Patent EP-0419728-A1 (EP)
Title: Schaltungsanordnung für ein festfrequentes Sperrwandler-Schaltnetzteil
Inventor: FELDTKELLER MARTIN DIPL-ING
IPC: H02M3/28
Filed: 1989-09-29
Abstract: Bei einem festfrequenten, synchronisierbaren Sperrwandler erzeugt üblicherweise eine integrierte Steuerschaltung (IS) ein synchronisierbares Oszillatorsignal (UOS) und schaltet synchron mit dem Oszillator (OS) einen primärseitigen Schalttransistor (6). Es wird vorgeschlagen, den Oszillator (OS) folgendermaßen auszubilden: Das Oszillatorsignal (UOS) hat einen festen oberen Spitzenwert (UOS1) und einen variablen unteren Spitzenwert (UOS2). Der Abstand zwischen beiden Spitzenwerten ist proportional zur gleichgerichteten Netzspannung (UE). Die Dauer der fallenden 0szillatorsignalflanke ist dabei konstant. Bei einer solchen Signalform ist die Anstiegsgeschwindigkeit des Oszillatorsignals (UOS) proportional zur Netzspannung. Auch der Anstieg des Kollektorstroms (IC) im Schalttransistor (6) ist netzspannungsproportional, so daß das Oszillatorsignal (UOS) eine Information über den Kollektorstrom (IC) enthält. Der Lösungsvorschlag ermöglicht somit eine Kollektorstromnachbildung ohne zusätzliche Außenbeschaltung.
Patent EP-0376357-A1 (EP)
Inventor: KUIJPERS JOHANNES ANTHONIUS MA
IPC: B65H23/032
Filed: 1989-10-17
Abstract: Centering device comprising means for continuously posing the centre (4) of the distance (6, 7)  between the two edges of all portions of a strip onto the desired diametral circumferential line of a drum (5), said means at least consisting of a marking in the shape of at least one unevenness that extends longitudinally over or parallel to the centre of the dis­tance between the two edges of the strip at all portions of the strip, of a device (8) for transmitting light rays to the strip and furthermore of a device (9) for detecting the light rays reflected by the strip.
Patent EP-0372652-A1 (EP)
Inventor: VISSER DIEDERIK
IPC: C10G55/04
Filed: 1989-12-04
Abstract: Process for the conversion of a heavy asphaltenes-containing hydrocarbonaceous feedstock comprising at least 25 %wt of hydrocarbons with a boiling point of at least 520 °C into products with a lower boiling point, which process comprises preheating the hydrocarbonaceous feedstock, passing the preheated feedstock through a thermal cracking zone so that a conversion of the hydrocarbons with a boiling point of 520 °C and above of at least 35 %wt is obtained, separating the effluent from the cracking zone into one or more distillate fractions and a residual fraction, and deasphalting the residual fraction to obtain an asphalt and a deasphalted oil.
Patent EP-0433497-A1 (EP)
Inventor: STEMPFLE JOHANN DIPL-ING FH
IPC: B41J2/235
Filed: 1989-12-18
Abstract: A matrix wire print head with a print wire guide housing and a print wire drive housing has magnetic drives (12) consisting of a magnetic yoke (13) with an electromagnetic coil arranged on a magnetic yoke leg (13a) and with an armature (15) which can be swivelled by means of a pin bearing (16) and rests against a stop in a rear position by means of a spring, a working air gap (20) being formed between armature (15) and a magnetic yoke leg end side. 
<??>In order to provide the preconditions for series production with corresponding accuracy and with correspondingly bunched magnetic flow, a recess (22) in which a central arm (15a) of the armature (15) is pivotably mounted by means of the pin (23) is arranged centrally with respect to the thickness (21) of the magnetic yoke, the axis (23a) of the pin extending laterally with respect to the area of the magnetic yoke leg centre (24). 
<IMAGE>
Patent EP-0393261-A1 (EP)
Inventor: PASCOUET ADRIEN P
IPC: G01V1/387
Filed: 1989-04-17
Abstract: The novel method substantially reduces the pressure pulse, generated by a first radial motion of a body of water, by changing the radial motion into axial motion. The change from radial motion into axial motion is produced by generating a second radial motion of opposite phase within the body of water. 
     The method can be used to substantially reduce the pressure pulse, generated by the implosion of a body of water, by generating an explosion in the body of water. It can also by an explosion within a body of water, by generating an implosion of the body of water. The method can further be used to generate within a body of water an impulsive acoustic signal by sequentially generating within the body of water a first explosion and a second explosion. The apparatus comprises a signal chamber (14) which contains a first charge of gas. A normally-closed valve (12) maintains the signal chamber (14) closed and has a discharge port (16) into the water. A second chamber (14') contains a second charge of compressed gas. A second fast-acting valve (12') normally maintains the second chamber (14') closed and has an outlet (16') into the water. A controller (20) explosively opens the first valve (12) so as to generate an impulsive acoustic signal and a first bubble. The controller (20) subsequently opens the second valve (12') to thereby release the second charge from the second chamber into the water, while the first bubble is near its maximim volume.
Patent EP-0341014-A1 (EP)
Inventor: CLARKE STEPHEN WILLIAM
IPC: A47F1/02
Filed: 1989-05-02
Abstract: A dispensing apparatus for dispensing particulate or granular material comprises two upper dispensers (10,12) and two lower dispensers (14,16) located beneath the upper dispensers. Inclined trays (36) are positioned beneath the lower dispensers, and excess product falling from the lower dispensers onto the trays is directed by means of the trays and a further guide (41) into one of two receiving containers (48a). 
     The lids (58) of the lower dispensers form an inclined surface, and excess product falling from the upper dispensers (10,12) is directed by the lids, by elongate channel-section guides (25) and by the aforementioned guide (41) into lower receiving containers (48b). 
     Any excess material dispensed from any of the dispensers is thus directed and guided to a respective container, which is more hygienic and produces a better presentation of the products to be dispensed. More importantly, the excess product collected may be re-used, thus keeping shrinkage and wastage to a minimum.
Patent EP-0353862-A1 (EP)
Inventor: SEKI YASUNARI C O K K HONDA GI
IPC: F02D41/22
Filed: 1989-06-29
Abstract: An irregularity-detecting method for a variable valve-timing type engine in which valve timing for at least each one of intake valves or exhaust valves in the engine is changed over by a hydraulically operated changeover mechanism, said method comprising steps of: 
detecting by a hydraulic pressure detecting (20) means an oil pressure in an oil supplying passage for supplying oil to the changeover mechanism; and 
determining by detection signals from said hydraulic pressure detecting means whether or not the oil pressure in the oil supplying passage has changed in compliance with an open/close instruction given to a valve means that controls supplying oil to the oil supplying passage so as to determine any irregularity in the valve timing changeover.
Patent EP-0367379-A1 (EP)
Inventor: ASARS JURIS ANDREJS
IPC: G01R31/08
Filed: 1989-08-02
Abstract: A method of detecting insulation defects 6, 14 in a wire 5 using an extended ion source 1 wherein ions 10 are generated along the entire length of an ionizing electrode 7 and flow toward an insulated cable 5 located in close proximity thereto. If there are defects 6, 14 in the cable insulation 5B, a real current will flow through the insulation defects 6, 14 and into the cable conductor 5A. The presence of this real current can be measured by connecting one end of the cable conductor 5A to an ammeter 11 and changes in this current indicate the existence of a defect 6, 14 in the wire insulation 5B. In another embodiment of the extended ion source 1, the ions 10, 12A are generated only in a small portion of the extended source 1 at any one time. By exciting the source with the proper sequence of signals 26, the ion generation scans or propagates along the entire length of the extended ion source 1.
Patent EP-0361984-A1 (EP)
Inventor: KNOX ANDREW STUART
IPC: G02B6/36
Filed: 1989-10-02
Abstract: A holder (1) for holding lithium niobate structures during transportation and processing comprising a frame (2) having fixed second grips (4,5) and resiliently mounted first grip (6). The distance between the first and second grips can be increased to allow a substrate to be placed therebetween by squeezing the first grip and the frame together. On releasing the first grip and the support, the first grip returns to its original position, and the substrate is securely held in place in a manner which minimises the area of the substrate which comes into contact with the holder.
Patent EP-0364150-A1 (EP)
Inventor: KOMIYA MASAYUKI
IPC: C03C4/00
Filed: 1989-10-03
Abstract: A fluorophosphate optical glass having optical constants, i.e. refractive index (nd) of 1.54 to 1.60 and Abbe number (νd) of 68 to 75 and having abnormal partial dispersion represented by a relative partial dispersion of at least 0.537 is provided, which has a chemical composition (% by weight) comprising: 
               Al(PO₃)₃   15 - 32%     Ba(PO₃)₂   0 - 10%     Sr(PO₃)₂   0 - 10%     Ca(PO₃)₂   0 - 10%     Mg(PO₃)₂   0 - 10%     sum of metaphosphates   20 - 32%     BaF₂   20 - 70%     SrF₂   5 - 40%     CaF₂   0 - 15%     MgF₂   0 - 10%     AlF₃   0 - 5%     GdF₃   0 - 5%     sum of fluorides   55 - 75%     Gd₂O₃   5 - 22%     La₂O₃   0 - 7%     Y₂O₃   0 - 10%     Yb₂O₃   0 - 10%     sum of rare earth oxides   5 - 22%
Patent EP-0369645-A1 (EP)
Inventor: UBEL FRANK ANDREW III C O MINN
IPC: G03F7/029
Filed: 1989-11-02
Abstract: Photocurable addition-polymerizable compositions containing a free-radically-polymerizable monomer and a photoinitiator system containing i) a trihalomethyl substituted-s-triazine ii) a sensitizing compound, and iii) an electron donor having an oxidation potential that is greater than zero and less than or equal to that of p-dimethoxybenzene (1.32 volts vs. S.C.E.). The compositions cure rapidly and deeply under ultraviolet or visible light.
Patent EP-0417365-A1 (EP)
Inventor: HYNES JOSEPH H
IPC: G01D21/00
Filed: 1989-11-13
Abstract: An improved wellhead casing hanger for suspension of successive casing strings with particularly small annular spacings has an adapter sleeve (34) of double wall construction which is utilized with a load bearing shoulder (78) on the inside of the inner member (40) for receiving a conventional expanding type hanger (88). The annulus between the inner and outer walls provides an improved fluid return path without restricting the bore of the sleeve. A pack-off (90) is provided for sealing the annulus at the appropriate time and an installation tool.
Patent EP-0375245-A1 (EP)
Inventor: YASUDA HIROSHI
IPC: H01M4/57
Filed: 1989-12-12
Abstract: Highly oxidized lead powder containing red lead at a desired ratio is efficiently produced by maturing the lead powder material at a low temperature section of a furnace keeping the temperature less than 100°C by spraying water to the material and then, by heating the same from 400 to 500°C at a high temperature section of the furnace. The highly oxidized lead powder produced in this method is preferable as an electrode active material of a lead storage battery.
Patent EP-0329508-A1 (EP)
Inventor: PREVOT RENE
IPC: F24H1/22
Filed: 1989-01-31
Abstract: Central heating installation equipped with a domestic hot water, or sanitary water, circuit, which comprises a heating apparatus comprising a shell, the internal part of which is equipped with a burner, in particular a gas burner, and on which there is rolled up or not a pipe of the heating circuit, which then passes through a bank of fins situated on the upper part of the shell, on the trajectory of the hot gases, the heating circuit in passing through the bank of fins being made in the form of a large number of flattened tubes connected to one another by elbows and the sanitary hot water circuit being made in the form of a pin-shaped or serpentine-shaped tube and arranged inside said flattened tubes on passing through the bank of fins, characterised in that:
 - the tubes (12') of the sanitary hot water circuit, arranged in the manner of a pin or of a serpentine in the flattened tubes (10') of the heating water circuit, are not in contact with the latter and
 - the dimensions of said flattened tubes (10') and of said tubes (12') are chosen in such a manner that the volume of water contained between the flattened tubes and the convolutions of the tubes in the form of a pin is as small as possible. 
<IMAGE>
Patent EP-0341231-A1 (EP)
Inventor: COSSEMENT ERIC
IPC: C07D233/64
Filed: 1989-04-20
Abstract: Nouveaux 1-(1H-imidazol-4-yl)alkyl-benzamides substitués et leurs sels, leurs procédés de préparation et compositions thérapeutiques.Ces composés répondant à la formule dans laquelleR₁, R₂ = hydrogène ou alkyle en C₁-C₄,R₃ = hydrogène, amino, hydroxyle, alkyle en C₁-C₄ ou hydroxyalkyle en C₁-­C₄,R₄ = hydrogène ou alkyle en C₁-C₄, ouR₃R₄N = pyrrolidino, pipéridino ou morpholino,R₅ et R₆ = hydrogène, hydroxyle, alkyle en C₁-C₄ ou alkoxy en C₁-C₄; au moins un des R₅ et R₆ ≠ hydrogène.Ces composés sont préparés soit par réaction d'un composé azoté sur un 1-(1H-imidazol-4-yl)alkyl-benzoate d'alkyle ou sur un acide 1-(1H-­imidazol-4-yl)alkyl-benzoïque, soit par hydrolyse en milieu acide d'un 2-­hydroxy-3-[1-(1H-imidazol-4-yl)alkyl]-benzonitrile.Ces composés possèdent des activités anti-ischémiques et agoniste des récepteurs α₂-adrénergiques.
Patent EP-0348465-A1 (EP)
Title: Current accumulator
Inventor: EHRHART PETER
IPC: H01F6/00
Filed: 1988-11-18
Abstract: PCT No. PCT/EP88/01051 Sec. 371 Date Jul. 20, 1989 Sec. 102(e) Date Jul. 20, 1989 PCT Filed Nov. 18, 1988 PCT Pub. No. WO89/05033 PCT Pub. Date Jun. 1, 1989.A process for supplying a current consumer with current from an accumulator for electrical energy, in which electrical energy pulses of very short duration each are supplied to the current consumer from a superconducting accumulator (2) made with superconductors (8) of very small diameter or very small layer thickness. The superconductors (8) are preferably high-temperature superconductors.
Patent EP-0401295-A1 (EP)
Title: Organizer system and method for a rotatable storage structure.
Inventor: BERNARD CLAY JR
IPC: B65G1/137
Filed: 1989-02-22
Abstract: A storage facility is provided for integration with a material distribution facility that includes a storage carousel (2) for receiving and storing containers (13) adapted to carry material goods. The carousel (2) includes a multiplicity of connecting rack arrays (10) arranged in side-by-side fashion. Each of the rack arrays (10) includes a plurality of vertically spaced container racks (12) for supporting selected containers, with the container racks from various rack arrays being arranged in a plurality of tiers. The carousel (2) is adapted to rotate about a continuous track. Insertion and extraction assemblies (6, 8) are provided for each carousel tier that are adapted to load and unload containers from the various racks (12) while the carousel (2) remains in continuous motion. A novel lift arrangement (4) is provided for carrying containers between a conveyor network and the various inserter and extractor assemblies. In an alternative aspect of the invention, a novel control system for a storage facility is described as well.
Patent EP-0463161-A1 (EP)
Inventor: MERZHANOV ALEXANDR GRIGORIEVIC
IPC: C04B35/65
Filed: 1989-03-24
Abstract: The process relates to the manufacturing technology for products of refractory compounds. The essence of the process is to prepare a pulverulent blend which contains at least one component from the series of the metals of Groups III to VIII of the Periodic Table of the Elements, boron, silicon and carbon as well as at least one compound from the series of the borides and silicides of the transition metals of Groups IVa to VIa of the Periodic Table of the Elements, and a raw product is then moulded from the blend and heat-treated at a temperature of 2000 to 3000 DEG C in an atmosphere of a nitrogen-containing gas under a pressure of 0.1 to 1000 MPa with flame control.
Patent EP-0399002-A1 (EP)
Inventor: HINDUJA MURLI
IPC: G01N11/00
Filed: 1989-07-28
Abstract: Procédé et appareil permettant de tester les caractéristiques d'écoulement de composés de moulage. L'appareil comprend des portions de moule supérieure et inférieure mobiles l'une par rapport à l'autre. La portion de moule inférieure (14) présente une cavité centrale (19) et un canal (21) partant de cette cavité et présentant des marques de repère (38) formées sur une paroi de fond (45) du canal. La portion de moule supérieure (12) présente une zone complémentaire en relief (37) qui coopère avec la cavité et le canal pour forcer le composé de moulage (47) placé dans la cavité à s'écouler par le canal, fournissant ainsi une indication sur les caractéristiques d'écoulement du composé de moulage. Des pointes éjectrices (56) positionnées au fond de la cavité et dans le canal sont actionnées par une plaque (53) de pointes éjectrices, qui est couplée à la partie de moule supérieure, de manière à éjecter l'échantillon lorsque les portions de moule sont séparées.
Patent EP-0449841-A1 (EP)
Inventor: HESS HARALD
IPC: D21G1/00
Filed: 1989-11-07
Abstract: Le lissage s'effectue dans l'écartement de calibrage (3) d'une lisseuse (2) par pression, humidité et chaleur. Afin d'obtenir la qualité de surface désirée, on amène la surface à lisser de la bande de papier ou de carton (1) à un état supérieur à la courbe de température de transition vitreuse du matériau dans l'écartement de calibrage (3). En moins de 20 à 60 ms (millisecondes), la surface de la bande de papier (1) qui sort de l'écartement de calibrage (3) subit une transformation provoquée par un dispositif de refroidissement (4), tout d'abord en combinaison avec un changement d'humidité, et atteint ainsi un état inférieur au point de transition vitreuse du matériau. Le refroidissement peut se faire en mettant la surface à refroidir en contact avec une surface (8) refroidie ou en la mettant en contact direct avec un gaz de refroidissement, de préférence inerte. Grâce à ce procédé, la rugosité de la bande de papier (1) n'augmente que dans une moindre mesure après le lissage, de sorte que la qualité de surface obtenue dans l'écartement de calibrage (3) est en grande partie préservée. Description de dispositifs pour la mise en oeuvre de ce procédé.
Patent EP-0382014-A1 (EP)
Inventor: SIGWART ULRICH
IPC: A61F2/92
Filed: 1990-01-25
Abstract: The intravascular stent intended for implantation in a stenotic area or zone of obstruction of a blood vessel consists of a flat sheet (1) which is perforated to form a kind of a reticulated or lattice type structure with undeformable links (2) and made of malleable material. Said sheet (1) is temporarily rolled up and locked in a spiral with a relatively small diameter (d) on a deflated angioplasty balloon (6) mounted on the end of a catheter (7) and is held in said rolled-up state by a tie (8) laced into overlapping links. Once the device is in place in the restricted area of the blood vessel to be treated and after tie (8) is removed, the rolled sheet (1) is expanded to a desired diameter (D) by inflating balloon (6) and is then held in this expanded state by integrated holding flaps (5) which, after the balloon is deflated, extend through the links and engage the edges thereof under the pressure of the vessel.
Patent EP-0389933-A1 (EP)
Inventor: LANGER RUTH GEB LAYHER
IPC: E04G7/32
Filed: 1990-03-21
Abstract: The apertured locking disc (10) has a central bore (15) for the post and large known cotter apertures (20), and also approximately pear-shaped new cotter apertures (30) with cotter bearing faces (31). 
<IMAGE>
Patent EP-0390047-A1 (EP)
Inventor: MUELLER HARTMUT DIPL-ING
IPC: B21D39/04
Filed: 1990-03-26
Abstract: The invention relates to a method for the connection of two cylindrical parts, which can be plugged into one another, especially of pipe ends to one another or to pipe and hose connecting parts, by means of cold deformation reducing the diameter. The invention furthermore relates to a connecting piece for carrying out this method. The core of the invention is that at least one of the cylindrical parts which are to be plug into one another has a connecting piece which has an internal diameter before the diameter-reducing cold deformation which is greater than the common internal diameter final dimension of both parts and in that the diameter-reducing cold deformation then takes place until the connection of the two parts to one another is achieved. <IMAGE>