baber/WOPTO huggingface dataset:
Patent EP-0066685-A1 (EP)
Inventor: BANKS BRUCE ALAN
IPC: A61M27/00
Filed: 1982-04-01
Abstract: This invention is directed to an improved cerebrospinal fluid shunt in the form of a ventricular catheter for controlling the condition of hydrocephalus by relieving the excessive cerebrospinal fluid pressure. The invention is further concerned with an improved method for fabricating the catheter and an improved method of shunting the cerebral fluid from the cerebral ventricles to other areas of the body. 
     The obstruction of cerebrospinal fluid flow pathways or its inadequate absorption via the arachnoid villi into the venus blood of the brain results in hydrocephalus. Surgical correction involves pressure controlled shunting of the cerebrospinal fluid. The shunt will fail to function if the inlet ventricular catheter apertures become blocked. Shunt flow failure will also occur if the ventricle collapses due to improper valve function causing over drainage. 
     The ventricular catheter 10 of the present invention comprises a multiplicity of inlet microtubules 12. Each microtubule has both a large opening 16 at its inlet end and a multiplicity of microscopic openings 18 along its lateral surfaces. 
     The microtubules are perforated by a new and novel ion beam sputter etch technique. The holes are etched in each microtubule by directing an ion beam 20 through an electro formed metal mesh mask 28 producing perforations having diameters ranging from about 14 microns to about 150 microns. 
     This combination of a multiplicity of fluoropolymer microtubes, the numerous small holes provided in the lateral surfaces of the tubes, and the hydra-like distribution of the tubes provide a new and novel catheter. This structure assures a reliable means for shunting cerebrospinal fluid from the cerebral ventricles to selected areas of the body.
Patent EP-0066716-A1 (EP)
Inventor: MEYER KNUT
IPC: F17D5/02
Filed: 1982-05-05
Abstract: Leakage in a conduit system (10, 12) is detected by means of a fluid flow detector (14) and evaluated by means of a control device (15) on the basis of predetermined criteria. When the control device, which may include a microcomputer (42) has received a signal from the flow detector (14) indicating that fluid is flowing through the conduit system the control device operates an alarm device (19) and/or closes the fluid supply by means of a valve (11), if the fluid flow is considered to be caused by a leak or break in the conduit system evaluated on the basis of the time at which the flow takes place, the duration of the detected flow, the intensity of the detected flow, and/or information about whether the fluid drains (13) of the conduit system are closed. 
     The conduit system (10, 12) may, for example, be a conduit system for supply of water or gas to apartment houses and one-family houses, but may also form parts of industrial plants. 
     The above mentioned method makes it possible to obtain a quick detection of leaks in hidden as well as unexposed conduits or tubes without the presence of persons being necessary, whereby the risk of damages due to leaks may be substantially reduced.
Patent EP-0077950-A1 (EP)
Inventor: DANTZIG JONATHAN A
IPC: B22D11/14
Filed: 1982-10-08
Abstract: An apparatus and a process for casting molten metal are provided having means for controlling and adjusting the position of a cast ingot (26). 
     Position detectors (60,62) located on opposed sides of the casting periphery measure the distance between the outer ingot periphery (64) and the inner mold wall (14). The detectors generate signals (P 1 , P 2 ) indicative of the distance. The signals (P 1 , P 2 ) are fed to a comparator (74) and to adjusting mechanisms (34). 
     If the first signal (P,) is different from the second signal (P 2 ) the position of the ingot (26) is adjusted by adjusting the support devices (32b).
Patent EP-0081683-A1 (EP)
Inventor: MAROSI LASZLO DR
IPC: C07C1/20
Filed: 1982-11-11
Abstract: 1. A process for the preparation of C2 -C4 -olefins in two stages by converting methanol and/or dimethyl ether over a zeolite catalyst of the pentasil type at from 300 to 600 degrees C and then subjecting some of the products to a cracking procedure, wherein, in the first stage, at least 95% of the crude methanol and/or the dimethyl ether is converted over a borosilicate zeolite or an aluminosilicate zeolite which has been treated with steam for at least 4 hours at above 400 degrees C, using a catalyst load of from 0,1 to 100 g of methanol and/or dimethyl ether per g of catalyst per hour, and a pressure of from 1 to 3 bars, into a mixture of hydrocarbons which contains less than 15% by weight of aromatic compounds, and the C2 -C4 -olefins formed are isolated and the C5-+ hydrocarbons together with the C2 -C4 -parafins are subjected to thermal cleavage in the presence of steam.
Patent EP-0066315-A1 (EP)
Inventor: BLOEM HERMAN C O INT OCTROOIBU
IPC: F24S10/70
Filed: 1982-05-11
Abstract: A heat-transport device (1) comprising a sealed and evacuated tube (2) which contains water which in the operation of the device (1) evaporates in a heated section of the tube and condenses in a cooled section, the condensed water collecting at the bottom of the tube (2) in the form of a liquid column, and a fine-meshed gauze (11) being attached to the inner surface of the tube (2) wall at the area of the liquid level (10) in the bottom of the tube when the device is not in operation.
Patent EP-0068526-A1 (EP)
Inventor: MAGEDANZ NORBERT DIPL-ING
IPC: C10G1/02
Filed: 1982-05-11
Abstract: Bei einem Verfahren zur Gewinnung von Öl aus ölhaltigen Mineralien auf einem Wanderrost werden in einer Schwelzone (4) heisse Gase (13) durch das Bett (3) geleitet, in einer Abscheidestufe (15) Öl (16) aus den Schwelgasen (14) abgetrennt, in einer anschliessenden Verbrennungszone (5) im abgeschwelten Bett (3) enthaltener fester Kohlenstoff mittels hindurchgeleiteter sauerstoffhaltiger Gase (19) verbrannt, in einer anschliessenden Kühlzone (6) von Öl befreite Gase (22) aus der Abscheidestufe (15) durch das Bett (3) geleitet und die aufgeheizten Gase (13) in die Schwelzone (4) zurückgeleitet. Zur Gewinnung von möglichst viel Öl und Energie mit geringem Aufwand wird der feste Kohlenstoff in der Oberschicht des Bettes (3) am Anfang der Verbrennungszone (5) mittels eines Zündofens (10) gezündet und die Verbrennungszone anschliessend mittels der hindurchgesaugten sauerstoffhaltigen Gase (19) durch das Bett (3) geführt, die Menge der durchgesaugten sauerstoffhaltigen Gase (19) so gesteuert, dass durch die Verbrennung von festem Kohlenstoff das Bett auf die maximal mögliche Temperatur gebracht wird, ein Teilstrom der aus der Abscheidestufe (15) austretenden Gase (17) im indirekten Wärmeaustausch (18) gegen die Abgase (20) der Verbrennungszone (5) aufgeheizt, in der Kühlzone (6) durch das Bett (3) geleitet, dort aufgeheizt und dann in die Schwelzone (4) zurückgeleitet und ein Teilstrom (25) der aus der Abscheidestufe (15) austretenden Gase abgeführt.
Patent EP-0060735-A1 (EP)
Title: Dispositif de fixation sur une paroi de l'extrémité d'une gaine dans laquelle est reçu coulissant un câble de commande
Inventor: DELIGNY JEAN
IPC: B60T11/04
Filed: 1982-02-04
Abstract: Dispositif de fixation sur une paroi (212) de l'extrémité (214) d'une gaine (216) dans laquelle est reçu coulissant un câble de commande (218), comprenant un embout de gaine (211) associé à l'extrémité et prévu pour être reçu dans une ouverture (220) ménagée dans la paroi, l'extrémité de gaine étant reçue de façon coulissante dans un alésage interne (226) dudit embout, ce dernier étant muni de moyens de blocage (230) pour immobiliser axialement l'extrémité de la gaine par rapport à l'embout après la mise en place du câble de commande, caractérisé en ce qu'il comporte un ressort de réglage (256) prenant appui sur l'embout et sollicitant élastiquement l'extrémité de gaine en éloignement de la paroi lors de la mise en place du câble.
Patent EP-0061958-A1 (EP)
Inventor: ANSEL JEAN PAUL
IPC: B21H5/02
Filed: 1982-03-15
Abstract: 1. Device for precise adjustment of the relative angular positioning of the shafts driving the shaping wheels of a rotary forging machine, said shafts (2, 3) rotating in the same direction and synchronously, being integral with helical teethed gears (10, 11) in constant engagement with conjugate helical teeth (8, 9) one gear being coupled to a driving device (1), one other gear being also movable in coaxial translation and connected to a micrometric device (12 to 24) for adjusting its axial position, which device enables to determine the relative angular positioning of said two gears, characterized in that said two gears are driven separately and respectively engaged with two driving gears (8, 9) with paired helical teeth of symetrical inclination and coaxially integral one with the other, the two driven gears (10, 11) being immobilized in axial translation, whereas the assembly of the two driving gears is movable in coaxial translation and cooperates with the micrometric adjusting device.
Patent EP-0083528-A1 (EP)
Inventor: MICHERON FRANCOIS
IPC: H02N2/00
Filed: 1982-12-21
Abstract: The aim of the invention is to combine a piezoelectric transducer (11) with a non-linear element (12) in order to deliver pulses to an end-use circuit (13). The invention applies in particular to devices in which an exerted pressure generates an electrical signal. It can be used in keypads. <IMAGE>
Patent EP-0081550-A1 (EP)
Inventor: FINEGAN SEAN NG
IPC: H01L21/203
Filed: 1982-05-13
Abstract: Procede epitaxial a faisceau moleculaire pour la fabrication d'un dispositif a semi-conducteurs dans lequel le dopant est implante en etablissant (130) un plasma contenant des ions du dopant et les ions sont couples au travers d'une chambre de mobilite (180) de maniere a provoquer leur collision contre la surface de substrat en croissance. Le plasma forme dans le canon ionique possede des ions de bore et d'arsenic et par consequent les dopants selectionnes pour l'implantation peuvent etre determines en predisposant un filtre de masse (134) present a l'interieur du canon ionique. Un changement vers le dopant du type a conductivite opposee peut etre execute en l'espace de quelques secondes simplement en reajustant le filtre de masse dans le canon ionique.
Patent EP-0086807-A1 (EP)
Inventor: LEBRUN PAUL
IPC: B43K17/04
Filed: 1982-08-26
Abstract: Stylographe permettant de faire du dessin par points ou des traits discontinus sans avoir à le relever du plan d'écriture. Ce stylo comprend une partie mobile (I), recevant l'ensemble plume-réservoir (7), coulissant dans le corps du stylo sous l'action du courant passant dans la bobine (4) attirant le noyau (5) solidaire de l'ensemble (I), le rappel étant assuré par le ressort (14). Le déplacement de l'ensemble mobile (I) est tel qu'il permet à l'extrémité de la plume de descendre plus bas que le point de contact de la roulette (6) avec le plan d'écriture. En position haute de l'ensemble mobile, le contact de la plume avec le plan d'écriture n'est plus possible. Le passage du courant dans la bobine (4) est commandé par les lames souples (9), court-circuitées par les parties cuivrées (8) lors de la rotation de la roulette sur le plan d'écriture. La commande de courant est réalisée par l'intermédiaire d'un générateur-amplificateur de type électronique pouvant également envoyer des impulsions de courant directement à la bobine (4), permettant ainsi la réalisation de dessin par points.
Patent EP-0086214-A1 (EP)
Title: Package with gas-tight envelope.
Inventor: JUD WILFRIED
IPC: B65D17/32
Filed: 1982-08-23
Abstract: Gas-tight packages for enclosing solid articles such as chocolates and other non-perishable baked goods in the form of a tubular pouch package which is easily opened and can be stream lined wherein the pouch has a gas-tight envelope made of a flexible sheet-like packaging material provided with zones where the packaging material is doubled and with a tear-open means.
Patent EP-0087068-A1 (EP)
Inventor: BECK THOMAS MOSES DR
IPC: A23L1/30
Filed: 1983-02-09
Abstract: A nutritional supplement to restore essential nutrients which are depleted as the consequence of excessive intake of alcohol. Fructose can optionally be included to accelerate the metabolism of alcohol. Also anti-oxidants and vitamins can be included to protect the body from free radicals developed in the course of metabolism of the alcohol, and to help a person feel better the next day.
Patent EP-0086474-A1 (EP)
Inventor: TROUE HARDEN H
IPC: G03F7/20
Filed: 1983-02-11
Abstract: In a process for curing a coating on a substrate which coating has a thickness of about 0.1 mil to about 10 mils, with ultraviolet light comprising the following steps:
     (a) apply a coating, which is curable with ultraviolet light, to the substrate, said coating having a viscosity, as applied, of at least about 50 centipoises;   (b) exposing the coated substrate to ultraviolet light having wavelengths in the range of about 1800 Angstroms to about 2750 Angstroms in an inert atmosphere for a period of time sufficient to initiate texturing at the surface of the coating;   (c) maintaining the coated substrate from step (b) in a space essentially devoid of ultraviolet light for a period of time sufficient for the surface of the coating to texture; and   (d) exposing the coated substrate from step (c) to ultraviolet light having wavelengths in the range of about 1800 to about 4000 Angstroms in an inert atmosphere or air until the coating is essentially cured,     
the improvement comprising, after step (a) and prior to step (b), increasing the viscosity of the coating by exposing the coating to ultraviolet light, said viscosity being increased to a viscosity no higher than that at which the coating is capable of being textured in steps (b) and (c), above.
Patent EP-0087793-A1 (EP)
Inventor: ESCHENBACHER WOLFGANG GUENTHER
IPC: B24B1/00
Filed: 1983-02-28
Abstract: A process wherein the workpiece is prewarmed and the prewarmed workpiece surface to be polished is moved past a CO2 laser and thereby briefly irradiated.
Patent EP-0111288-A1 (EP)
Inventor: MEININGER FRITZ DR
IPC: D06P3/10
Filed: 1983-12-06
Abstract: 1. Water-soluble azo compounds corresponding to the general formula (1)  see diagramm : EP0111288,P8,F1  in which R**1 is a hydrogen atom or an alkyl group of 1 to 4 C-atoms which can be substituted by one or two watersolubilizing groups or a hydroxy group ; R**2 is a hydrogen atom or an alkyl group of 1 to 6 C-atoms which can be substituted by one or two watersolubilizing groups or a hydroxy group, or is the phenyl radical or a naphthyl radical, it being possible for these phenyl and naphthyl radicals also to be substituted by 1, 2 or 3 substituents from the group comprising sulfo, carboxy, halogen, alkyl of 1 to 4 C-atoms, alkoxy of 1 to 4 C-atoms, hydroxy and carbalkoxy of 2 to 5 C-atoms, or is a cycloalkyl radical ; X is the vinyl group or a beta-thiosulfatoethyl, beta-chloroethyl or beta-sulfatoethyl group ; n denotes the number zero, 1 or 2 ; the group -SO3 M, where M as the meaning given below, of no fixed position in the aminonaphthol radical is bonded to the naphthalene nucleus in the metaposition relative to the amino group ; M is a hydrogen atom or an alkali metal or the equivalent of a metal of the 2nd or 3rd Main Group of the Periodic Table.
Patent EP-0144465-A1 (EP)
Inventor: RUKLIC WILLIAM STEVE
IPC: B65D41/48
Filed: 1983-12-15
Abstract: A plastic closure or cap of the tamper-indicating type for sealing a container has collar means that frictionally grasp the rim of the container and an outer collar part which has a latch cooperating with a catch on the rim. The cap has a pull tap which facilitates tearing the collar part from the rim to separate the latch from the catch. The cap also has a material receiving opening having an irremovable closure plug. The plug may be carried by a tongue attached to the cap or it may be independent of the cap. The material receiving opening may have a lower end portion closed by a wall that may be penetrated by a hollow needle to fill the container.
Patent EP-0115665-A1 (EP)
Inventor: CARUSO RICHARD
IPC: A45D2/22
Filed: 1983-09-15
Abstract: A hair curler for subjecting hair to steam to effect a curling action includes a hollow perforated core (12) surrounded by a compressible porous foam pad (26). A generally semi-cylindrical shield (28) has notches (32, 36) in end walls 30, 34) for receiving the core (12).
Patent EP-0086125-A1 (EP)
Inventor: MOREAU ANDRE
IPC: G01S7/34
Filed: 1983-01-19
Abstract: 1. Gain control device of a radar reception chain which is constituted, on the input side, by a hyperfrequency amplifier circuit (5) for the signals received by the associated radar antenna (2) and, on the output side, by a filter circuit (15) for these signals, and which further comprises a mixer (10), an intermediate frequency stage and a radar signal processing chain, said device comprising a variable attenuation circuit (8) and a noise source (12) the noise level of which is adjusted by an auxiliary attenuation circuit (13), said device being characterized in that it comprises, as an attenuation circuit (8), a variable controlled reactance circuit placed on the output of the hyperfrequency amplifier circuit (5), an insulating input circuit (6) having a first path connected to the hyperfrequency amplifier (5), a second path closed by a load (7) and a third path connected to the input of the variable controlled reactance attenuation circuit (8) the output of which is connected to a first path of an output insulation circuit (9) which has a second path connected to the mixer (10) arriving at the intermediate frequency stage of the radar reception chain, and which has a third path connected to the auxiliary attenuation circuit (13).
Patent EP-0100716-A1 (EP)
Inventor: ANDRIE PHILIPPE
IPC: G01B21/00
Filed: 1983-07-22
Abstract: Dispositif de palpage à laser pour contrôle dimensionnel. Il comporte: - un corps (2) - un palpeur (22) coulissant dans le corps (2), - un contrepoids (26) de même masse que le palpeur (22) et relié à ce dernier par un fil (30) passant sur des poules (32, 34) et coulissant dans le corps (2) parallèlement au palpeur (22), - des moyens de guidage en translation pour le palpeur (22) et le contrepoids (26), - des moyens (26, 28) pour exercer une pression sur le palpeur (22), - des moyens pour mesurer le déplacement du palpeur.
Patent EP-0102897-A1 (EP)
Inventor: BOUCHLAGHEM DANIEL
IPC: G11B5/41
Filed: 1983-08-24
Abstract: 1. Automatic device for cleaning a magnetic reading head of a magnetic tape intended for a cassette recorder, comprising a retractable brush (8) adapted to be in contact with the reading head (9), means (18) for detecting the presence of a cassette inside the apparatus and means (1 to 4) for driving the retractable brush (8) controlled by the means (18) for detecting the presence of a cassette inside the apparatus, characterized in that it further comprises sensors (6, 7) of the position of the brush (8) constituted by fixed end of travel microcontacts cooperating with a stop member (5) integral with a brush-supporting rod (51, 41) movable perpendicularly to the reading head (9), and switching means (11 to 17) operationally coupled to said sensors (6, 7) to the means (18) for detecting the presence of a cassette, and to the means (1, 4) for driving the retractable brush in order to ensure selective drive in rotation and in translation of the retractable brush (8) on every cassette withdrawal, so that the brush (8) is imparted with a reciprocating movement during which it is in contact with the magnetic head (9) while rotating on its axis, and in that the driving means and the means for transmitting the movement operationally coupled to the brush (8) comprise a direct current electrical motor (1), a system of pulleys and belt (2, 3, 4), a fixed guiding nut (114) and a threaded rod (41) integral on the one hand with a receiving pulley (3) and on the other hand with the brush-supporting rod (51).
Patent EP-0097188-A1 (EP)
Title: A method for the delignification of wood and other ligno-cellulosic products
Inventor: TOURNIER HERVE
IPC: D21C3/00
Filed: 1982-12-07
Abstract: A method for delignifying ligno-cellulosic materials and efficiently separate from each other the constituents thereof. Said materials which optionally may be prehydrolized are heated in an aqueous acid medium in the presence of phenol compounds whereby the ratio by weight of liquid to solid is at least 0,5. In the case of low liquid solid ratios i.e. below about 4:1 further aqueous liquid is added to the reaction mass after pulping to aid filtration and draining. After isolating the purified solid cellulose pulp, the liquid phase separates into two layers: an aqueous layer rich with pentoses and an organic layer rich with phenols and lignin, the latter providing, by distillation and pyrolysis of the residue, a quantity of phenols at least equal to that of the phenols used in the delignification stage.
Patent EP-0128138-A1 (EP)
Inventor: GOET RICHARD CLAAS
IPC: H01H3/24
Filed: 1982-12-11
Abstract: Un commutateur oblong à commande par pied et à actionnement pneumatique a la forme d'un tube rempli d'air dans lequel le volume d'air enfermé et toute autre partie de service ne nécessitent jamais aucun réglage à la suite de variations normales de la température environnante. Lorsque le commutateur-contrôleur à tube est hors service, l'air dans le tube est toujours remis en communication ouverte avec l'air dans la pièce. Le commutateur-contrôleur à tube, faisant partie de l'unité de commande multi-usages, est ainsi très fiable, et également grâce à l'utilisation supplémentaire d'un circuit intégré détecteur de la pression d'air qui convertit immédiatement la valeur de toute pression d'air en la valeur correspondante de la puissance électrique requise momentanément pour entraîner l'instrument dentaire utilisé à la vitesse souhaitée par le dentiste.
Patent EP-0116633-A1 (EP)
Title: Sonde pour l'affichage d'irregularites de surface
Inventor: ACKERMAN GARY M
IPC: G01B7/28
Filed: 1983-08-18
Abstract: Indicateur pour l'affichage de mesures et d'irrégularités de surfaces depuis un niveau de mesure de référence initiale. L'indicateur comprend une aiguille de sonde (N) pouvant être positionnée contre la surface à mesurer. L'aiguille de sonde (n) produit un signal de commande représentant la position de l'aiguille de sonde (n) et un affichage (Y) permet de visualiser l'écart entre la surface relative et le niveau de mesure de référence. Le capteur de l'aiguille de sonde (N) comprend des couches capacitives de détection comprenant une plaque fixe (22A) et une plaque mobile (22) fixée à l'aiguille de sonde (N) et mobile avec celle-ci de manière à provoquer une variation de la capacitance entre les plaques et produire ainsi le signal de commande.
Patent EP-0123030-A1 (EP)
Inventor: SIMI VICTOR MICHAEL
IPC: H02M3/335
Filed: 1984-02-08
Abstract: The switching power supply has pulse width modulation controller (51) isolated by transformer (35), which is connected by line (33) to the output, VO, across lines (27 and 29). An alternating input is obtained from transistor (19) acting as a switch controlled by alternating signals on line (15) connected to node C. Diode (37) in series with resistor (39) provides damping. Response is very fast and effective, and the input elements, including controller (51), are fully isolated.
Patent EP-0133881-A1 (EP)
Inventor: OTTE WERNER DR
IPC: C08L27/00
Filed: 1984-06-12
Abstract: The monoethers of 2,2-dimethylpropane-1,3-diol are prepared by hydrogenation of cyclic acetals of 2,2-dimethylpropane-1,3-diol with straight-chain or branched, saturated or unsaturated aliphatic aldehydes having 3 to 20 carbon atoms on copper chromite or nickel catalysts at 150 to 350 bar and 150 to 280 DEG C. The compounds obtained are preferably used as plasticiser alcohols.