baber/WOPTO huggingface dataset:
Patent WO-8201364-A1 (WO)
Title: Method for removing hydrogen sulfide from gas streams
Inventor: FENTON DONALD M
IPC: C01B17/05
Filed: 1980-10-14
Abstract: The problem of chemical consumption and undesirable formation of sulfur-containing salts inherent in conventional processes, such as the Stretford and Takahax processes, for the removal of hydrogen sulfide from gas streams are substantially reduced by the use of a novel, substantially quinone-free washing solution containing solubilized vanadium, thiocyanate ions, a carboxylate complexing agent and one or more water-soluble nonquinone aromatic compounds capable of solubilizing vanadium. Hydrogen sulfide is removed from the hydrogen sulfide-containing gas stream (12) by contact with the washing solution (14). The absorbed hydrogen sulfide is converted to elemental sulfur by reaction with the washing solution. The sulfur is separated (36) and recovered. The washing solution is oxidatively regenerated (24) before being recycled (30) to the absorber (10).
Patent WO-8202792-A1 (WO)
Title: Semiconductor memory cell margin test circuit
Inventor: OTOOLE JAMES E
IPC: G11C29/50
Filed: 1981-02-02
Abstract: A margin test circuit (10) is provided for a semiconductor memory circuit having a plurality of memory cells (16). Each of the memory cells (16) in one row of cells (16) are interconnected to a word line (14). The margin test circuit (10) further includes a row decoder/driver (12) which receives a variable voltage (V<ucc>u *) for changing the signal level stored within a memory cell (16) to thereby determine the marginal voltage level at which the memory cell (16) will maintain storage of a signal level. The variable voltage (V<ucc>u *) is the semiconductor memory circuit main supply source (V<ucc>u) in normal operation but can be forced to a different voltage during the margin test.
Patent WO-8201267-A1 (WO)
Title: Circuit for converting a non-live zero,current signal to a live zero dc output signal
Inventor: RUESCH J
IPC: G08C19/02
Filed: 1981-09-28
Abstract: A circuit is coupled to an external power supply (15) and is coupled to a non-live zero, two wire DC current transmitter (11) (e.g. 4-20 MA output) for converting such current to a live-zero DC output current signal (e.g. 0-20 MA output) and for powering such transmitter. The circuit has a first current to voltage converter (108) for converting the transmitter current signal to a voltage signal, and a second current to voltage converter (142) coupled to receive the circuit output current signal and an offset current from an offset current source (150, 152, 154) for converting the sum of the circuit output and offset currents to a second voltage signal. A comparator (120) is used for comparing the first and second voltage signals to provide the live-zero output current signal representative of the non-live zero transmitter signal. The circuitry can also provide isolated power (34) to the transmitter (11) and feedback (closed loop) control (82) of such power.
Patent WO-8202636-A1 (WO)
Title: Continuous tone imaging with light valve array
Inventor: MIR JOSE MANUEL
IPC: H04N1/036
Filed: 1982-01-28
Abstract: Method for reducing banding and streak-type artifacts in continuous tone images produced by an illuminated array of electrically addressable light valves (10). Such method involves the steps of addressing each light valve with a nominal voltage representative of the average half-wave voltage for all of the light valves in the array, and varying the duration of the addressing voltage to achieve density gradations in the image. In producing color images, the light valves are preferably addressed with an average half-wave voltage for the wavelength of the particular illuminant (e.g. red, green or blue light). Alternatively, a compromise half-wave voltage(s) is selected, taking into consideration the spectral sensitivity of the human eye and/or the photosensitive medium on which the color image is formed.
Patent WO-8402782-A1 (WO)
Title: Commande a l'aide d'un rayon lumineux d'un autre rayon lumineux applique a une structure a semiconducteurs en couches
Inventor: CHEMLA DANIEL SIMON
IPC: G02F1/017
Filed: 1983-12-23
Abstract: Un dispositif optique non linéaire (10) comprend une structure à semiconducteurs en couches (14) possèdant des couches (15, 19) de matériaux à écartements de bande d'énergie différents. Des couches alternées (15) de la structure sont agencées pour contenir des charges emprisonnées. Un rayon lumineux d'entrée (21) est appliqué aux couches. Un rayon lumineux de commande (17) fait varier la charge emprisonnée pour commander la propagation du rayon lumineux d'entrée au travers de la structure.
Patent WO-8404247-A1 (WO)
Inventor: CAMPBELL HENRY FLUD
IPC: A61K31/165
Filed: 1984-04-27
Abstract: Classe de composés thioéthers et éthers d'aminoalcènes benzenoïdes bicycliques possédant une activité pharmacologique, y compris une activité anti-sécrétrice et anti-ulcérogène, compositions pharmaceutiques comprenant ces composés et procédés pour le traitement de l'hyperacidité gastro-intestinale et d'affections ulcérogènes chez les mammifères utilisant lesdites compositions.
Patent WO-8700289-A1 (WO)
Inventor: CANFIELD ROBERT E
IPC: G01N33/76
Filed: 1986-07-01
Abstract: Procédé permettant de déterminer la présence de glycoprotéines solubles désialylées dans des fluides biologiques. Le procédé consiste à mettre un échantillon de fluide biologique en contact avec une quantité suffisante d'une lectine appropriée pouvant se fixer de manière sélective sur la glycoprotéine désialylée pour produire un complexe. Le complexe résultant est extrait séparément du fluide biologique. Le complexe extrait est mis en contact, dans des conditions appropriées, avec au moins un anticorps détectable d'un déterminant antigénique sur la glycoprotéine désialylée et pouvant se fixer de manière sélective sur la glycoprotéine présente dans le complexe. La présence d'anticorps ainsi liés est détectée, ce qui permet de déterminer la présence de glycoprotéines désialylées dans le fluide biologique.
Patent WO-8701665-A1 (WO)
Inventor: KUNCZYNSKI JAN K
IPC: B61B12/06
Filed: 1986-09-19
Abstract: Des poulies porteuses (11, 13, 14) dans un système de tramway aérien, on prévoit un ensemble magnétique (39) dont le champ est suffisamment puissant pour le maintenir dans une position prédéterminée en raison de l'attraction exercée sur le câble métallique de traction (31) pendant son passage normal sur les poulies (11, 13, 14). Lorsque le câble métallique de traction (31) commence à sortir d'une des poulies (11, 13, 14) et risque d'être rapidement déjanté, l'ensemble magnétique (39) descendra de sa position armée pour adopter une position essentiellement différente. L'ensemble magnétique (39) porte au moins un interrupteur (77, 79) sensible à la position, qui interrompt un circuit de détection lorsque l'aimant (39) se met à la nouvelle position. L'interruption du circuit de détection est utilisée pour localiser l'éventuel déjantage et pour arrêter le fonctionnement du tramway.
Patent WO-8702103-A1 (WO)
Title: Blind fastener with cap nut and method of installing same
Inventor: PRATT JOHN D
IPC: B21J15/00
Filed: 1986-10-03
Abstract: A blind fastener for connecting two workpieces (12, 14) together, comprising an internally threaded fastener body (20) and an externally threaded stem (24) passing in threaded engagement therewith. A drive nut (46) is mounted on the stem (24) in contact with the fastener body (20) for preventing rotation thereof upon turning of the stem to install the fastener. The outer end of the stem has a cap nut (36) to enable turning of the stem. Both the drive nut (46) and the cap nut (36) are engaged by wrench components (40, 50) of an installation tool (42) to cause turning motion of the stem relative to the fastener body to deform a sleeve (32) around the fastener body (26) into contact with one surface (18) of the two workpieces (12, 14). Although the fastener may vary in size depending upon the nature of the two workpieces to be connected together, the outer dimensions of the drive nut (46) and cap nut (36) remain constant for all fasteners regardless of differing stem diameters without necessity to change the wrench components of the installation tool. The outer surface (48, 38) of the drive nut (46) and cap nut (36) may be hexagonal or cylindrical in configuration for use with either hand held or robotic installation tools.
Patent WO-8703677-A1 (WO)
Title: Optical data collection apparatus and method
Inventor: BROWN RICHARD I
IPC: G01P3/60
Filed: 1986-12-03
Abstract: A non-contact apparatus for acquiring velocity information off of an internal rotating housing of an Adams-type centrifuge (10). The apparatus includes a bidirectional transmitter of radiant energy, such as a fiber-optical member (52), positioned at the axis of rotation of the exterior rotatable housing of the centrifuge. A ring (58) of reflective, spaced-apart, members is formed on the lower surface of the rotatable housing adjacent the end of the fiber-optic member. Radiant energy from an exterior, fixed, light source (42) is transmitted through the fiber-optic member and is incident upon the rotating ring. Radiant energy reflected off of the reflecting members of the ring passes back through the fiber-optic member and can be sensed in an externally located, stationary optical sensor (66). The optical sensor generates a train of electrical pulses in response to the incident pulses of reflected radiant energy.
Patent WO-8707344-A1 (WO)
Title: Spline anti-backlash device
Inventor: ANDREWS RODNEY R
IPC: F16D3/06
Filed: 1987-05-07
Abstract: A spline anti-backlash device (16) for engaging an internal spline (14) comprises external teeth (18) fixed to a shaft assembly (11) and external teeth (29) on a sleeve (22) mounted on helical splines (20) on the shaft assembly (11) and biassed axially by levers (24) subjected to centrifugal force, to engage the trailing tooth faces of the internal spline (14).
Patent WO-8806025-A1 (WO)
Title: Dental router
Inventor: WEISSMAN BERNARD
IPC: A61C13/12
Filed: 1988-02-03
Abstract: A router (10) for performing finishing operations on a dental model having a housing with a base (12) in which a motor (22) is positioned. A storage compartment (40) mounted on the base (12) includes a pivotal cover (44). The cover (44) forms a horizontal work platform (80) on which the dental model is supported during the operations. The motor (22) extends into the storage compartment (40) and a tool (118) is secured to the shaft (116) for vertical projection above the work platform (80) through a hole (82) in the cover (44). Apertures (86) in the cover (44) permit dust to fall down into the storage compartment (60) from which a vacuum extracts the dust. A novel method of routing dental models is provided wherein the dental model is placed on a horizontal work surface (80) and finished using a vertically oriented tool (118).
Patent WO-8806866-A1 (WO)
Title: Piezolectric nerve guidance channels
Inventor: AEBISCHER PATRICK
IPC: A61B17/00
Filed: 1988-03-07
Abstract: Medical devices and methods employing piezoelectric materials, such as polyvinylidene fluoride (PVDF) and other biocompatible piezoelectric polymers, are disclosed for use as guidance channels in regenerating nerves. The devices can be formed by a tubular piezoelectric membrane adapted to receive the ends of a severed or damaged nerve. The tubular conduit defines a lumen through which axons can regenerate to restore motor and/or sensory functions. The piezoelectric materials generate transient electrical charges upon mechanical deformation which augment the ability of axons to bridge the gap between the proximal and distal nerve stumps.
Patent WO-8810390-A1 (WO)
Title: Safety fitting for a vacuum orifice in a swimming pool
Inventor: FRENTZEL HERMAN E
IPC: F16L5/12
Filed: 1988-06-03
Abstract: A fitting is disclosed for covering the vacuum orifice (10) formed in the wall (12) of the swimming pool. The fitting includes a hollow body member (22) connectable to the vacuum orifice (10) and having an opening (24) for receiving a vacuum hose (18). A spring loaded cap is connected to the body member (22) and is designed to seal the orifice when the cap is in the closed position. A safety locking mechanism (50, 52) is provided to prevent the inadvertent opening of the fitting. In the preferred embodiment, the cap further includes a lug (60) for engaging a vacuum hose (18) to enhance the connection between the hose (18) and the fitting.
Patent WO-9000964-A1 (WO)
Title: Film transfer molding
Inventor: WEAVER WILLIAM R
IPC: B29L31/58
Filed: 1989-07-12
Abstract: Producing an encapsulated glazing unit having a weather-stable film on an exposed surface of the gasket. There is provided a two-part mold (17, 18) whose sections cooperate to define a mold cavity for receiving the peripheral margins of the transparent glazing unit upon which the gasket is to be formed. A sheet of the weather-stable film (11) is positioned over the mold section having the portion of the cavity which defines the surface to which the film is to be applied. With the mold closed, a flowable gasket forming material is injected into the mold cavity (28) behind the film to deform the film into conformity with the mold surface. As the gasket (12) cures in situ, the film chemically bonds to its surface. The encapsulated unit is removed from the mold and the excess film is trimmed from around the gasket.
Patent WO-9004292-A1 (WO)
Title: A digital fm demodulator with a reduced sampling rate
Inventor: SOLOMON JAMES DOUGLAS
IPC: H03D3/00
Filed: 1989-09-22
Abstract: A method of recovering a frequency modulated signal wherein the frequency modulated information signal (503) is sampled (508) at a rate less than the Nyquist sampling rate, following which the under sampled signal can be demodulated (509) to extract the original information signal.
Patent WO-9113988-A1 (WO)
Inventor: SAXENA INDER M JR
IPC: C12N15/82
Filed: 1991-03-14
Abstract: The present invention relates to the compositions and methods associated with the cloning of the subunits of β-1,4 glucan synthases responsible for catalyzing β-1,4 glucan polymer biosynthesis. The invention relates further to compositions and methods for obtaining host cells containing recombinant β-1,4 glucan synthases as well as compositions and methods for obtaining β-1,4 glucan synthase from natural sources. In certain aspects, the present invention provides methods for the cloning of both the 83 Kd subunit and the 93 Kd subunit of the cellulose synthase enzyme from Acetobacter xylinum.
Patent WO-9117769-A1 (WO)
Title: Nouveau procede de production d'anticorps monoclonaux humains de haute affinite specifique d'antigenes
Inventor: BOERNER PAULA
IPC: C12N5/00
Filed: 1991-05-21
Abstract: L'invention a trait à des progrès relatifs à la production d'anticorps monoclonaux, et notamment, à une méthodologie de culture préparatoire à la formation d'hybridomes. Spécifiquement, la rétention de fragments lymphoïdes dans des systèmes de culture a pour résultat des cultures à durée de vie prolongée secrétant essentiellement de l'IgG.
Patent WO-9117811-A1 (WO)
Title: Self-cleaning filter for fluid distribution systems
Inventor: THOMPSON JAMES E
IPC: B01D35/02
Filed: 1991-05-23
Abstract: A self-cleaning filter assembly for removing suspended matter from fluids, primarily utilized in irrigation or similar distribution systems. The fitler assembly comprises a container (11) having at least one inlet aperture (32) and at least one outlet aperture (44) therethrough and a filter screen (18), comprising a hollow perforated body, inserted within the container (11). One end (38) of a conduit (36) is connected in fluid flow relationship to the inlet aperture (32) of the container (11) while the other end (40) of the conduit (36) terminates within the hollow body comprising the filter screen (18). The outlet aperture (44) is so located that the fluid entering the container (11) through the fluid inlet aperture (32) and the conduit (36) must pass through the filter screen (18) before exiting the container (11) through the outlet aperture (44).
Patent WO-9209039-A1 (WO)
Title: Fonction de touche directe protegee pour un systeme d'ordinateur base sur un microprocesseur
Inventor: RAASCH CHARLES F
IPC: G06F13/24
Filed: 1991-11-07
Abstract: Un système d'ordinateur (100) compatible avec l'architecture des normes industrielles (ISA), comprend une touche de fonction additionnelle sur son clavier (150). La touche de fonction additionnelle ne présente pas de fonction définie pour des ordinateurs de norme ISA classiques. Lorsqu'une touche alphanumérique ou une touche de fonction classique est activée sur le clavier, le système d'ordinateur (100) est interrompu au moyen d'un signal de requête d'interruption IRQ1 (154). et l'information de la touche est communiquée au système d'ordinateur (100) de sorte que celui-ci peut réagir de manière normale en utilisant un programme de prise en charge d'interruption de clavier classique. Lorsque la touche de fonction additionnelle et une touche alphanumérique sont activées en combinaison, une seconde interruption, différente de l'interruption IRQ1 est activée (par exemple IRQ15 (222)). Le système d'ordinateur (100) réagit à la seconde interruption en introduisant une identification de la touche alphanumérique activée et en accoplissant une fonction prédéterminée choisie en réponse à la touche.La prise en charge de la seconde interruption est effectuée par un programme de prise en charge d'interruption séparé dans le système d'ordinateur (100) de sorte que les programmes résidents TSR qui interceptent les entrées de clavier classiques ne peuvent pas aisément intercepter les entrées de clavier introduites par la touche de fonction additionnelle.
Patent WO-9215190-A1 (WO)
Inventor: BIRD GERALD C
IPC: H05K13/02
Filed: 1992-02-12
Abstract: Bande de transport constituée d'un matériau tissé dont les surfaces parétiales définissent les secteurs d'une série de poches espacées, correspondant à des évidements par rapport à la surface de base et conçues pour abriter des composants. Le matériau tissé comporte des espaces libres remplis d'air pouvant être de la mousse ou des fibres polymères collées ensemble. Les poches peuvent être réalisées en perçant des ouvertures à travers le matériau tissé, ou en comprimant sous l'effet conjugué de la chaleur et de la pression des secteurs du matériau tissé de manière, à former des poches dont le fond définit en partie un logement entre lui-même et la surface principale du tissu.
Patent WO-9221114-A1 (WO)
Title: Stylus for handwriting identification
Inventor: GULLMAN LARRY S
IPC: G06V10/12
Filed: 1992-03-17
Abstract: A stylus (2) formed of a shaft (4) containing pressure sensors (10-1, 10-2) and useful in signature verification and in identification of individuals. The pressure sensors are imbedded in an integral with the shaft of the stylus at a predetermined distance from the tip (8) used for writing. The sensors are preferably disposed in an annulus (12) and located in each of four quadrants (10-1, 10-2, 10-3, 10-4) surrounding the shaft enabling three-axis pressure detection.
Patent WO-9216463-A1 (WO)
Inventor: KOSKAN LARRY PAUL
IPC: C08G73/10
Filed: 1992-03-19
Abstract: L'invention concerne l'utilisation de l'acide polyaspartique en tant qu'inhibiteur de la précipitation du sulfate de calcium et du sulfate de baryum. On peut, en général, utiliser l'acide polyaspartique sous toutes ses formes. On donne la préférence aux acides beta-polyaspartique.
Patent WO-9219439-A1 (WO)
Inventor: KOLOSOWSKI PAUL A
IPC: B29C44/56
Filed: 1992-03-24
Abstract: L'invention décrit une structure en mousse plastique à alvéoles fermées, comprenant une mousse plastique (10) définissant une multiplicité de canaux (30) s'étendant depuis la surface de la mousse et pénétrant dans la mousse. Les canaux n'ont pas un sens déterminé par rapport à la longueur de la mousse et s'étendent, de préférence, perpendiculairement au sens de la longueur de la structure en mousse. Les canaux présentent un échange gazeux avec l'extérieur de la structure en mousse et permettent d'améliorer la libération d'un agent gonflant. L'invention décrit, de plus, un procédé de préparation de la structure en mousse plastique comprenant: (a) la création de la mousse plastique et (b) sa perforation superficielle, afin de constituer une multiplicité de canaux s'étendant depuis la surface et pénétrant dans la mousse, afin de réaliser ladite structure.
Patent WO-9222543-A1 (WO)
Inventor: ANDO KAZUO
IPC: A61K31/40
Filed: 1992-05-21
Abstract: Les composés de formule (A) où X est -CH2-, -O- ou -S-, m est compris entre 1 et 3, n est compris entre 1 et 2 et R1 est hydrogène, alkyle C1 à C4, aryle ou aryle remplacé par un ou plusieurs substituants choisis indépendamment dans le groupe constitué d'halogène, de nitro, de cyano, d'alkyle C1 à C10, d'alkyle halosubstitué C1 à C10, d'alcoxy C1 à C6, d'alcoxycarbonyle dont la fraction alcoxy comprend de 1 à 10 atomes de carbone, d'aminocarbonyle, d'alkylaminocarbonyle dont la fraction alkyle comprend de 1 à 10 atomes de carbone et de dialkylaminocarbonyle dont chacune des fractions alkyle comprend de 1 à 10 atomes de carbone, et leurs sels pharmaceutiquement acceptables, inhibent la lipoxygénase enzymatique et sont utilisés pour le traitement des allergies, des inflammations et des troubles cardio-vasculaires dans lesquels la lipoxygénase joue un rôle. Ces composés constituent le principe actif de compositions pharmaceutiques destinées à traiter ces troubles.
Patent WO-9302167-A1 (WO)
Title: Fluides fonctionnels aqueux
Inventor: FORSBERG JOHN W
IPC: C08G65/332
Filed: 1992-07-14
Abstract: L'invention se rapporte à une composition comprenant (A) au moins un réactif (A) d'au moins un agent acyle carboxylique substitué en hydro-carbyle possédant au moins trois groupes carboxyliques, (B) au moins un polyoxyalcylène à terminaison amine ayant un poids moléculaire moyen compris entre environ 600 et environ 10,000, ou bien au moins un sel dudit réactif. Les fluides fonctionnels dont la composition comprend lesdits réactifs ou les sels de ceux-ci présentent une viscosité suffisante et stable permettant de les utiliser dans des fluides hydrauliques, des fluides utilisés pour le découpage et la transformation des métaux et dans d'autres fluides lubrifiants.
Patent WO-9304335-A1 (WO)
Title: Manifold assembly for a parallel flow heat exchanger
Inventor: CREAMER HARVEY
IPC: F28F9/00
Filed: 1992-08-21
Abstract: A manifold assembly (110) for heat exchangers comprises a tank (120) and a header plate (150) which both have a semicircular cross section, the tank outer diameter being substantially equal to the inner diameter of the header plate to allow the tank to be inserted into the header plate. A plurality of tube receiving holes (170) are formed through the header plate. A flange or lip (172) is formed around the tube holes to provide a tube lead-in and a joint filleting pocket. A plurality of opposed slots (180) are formed through the tank and header plate to receive baffles (190) for locking the tank and header plate together during assembly and for adjusting the flow pattern during use. The baffles engage the inner walls (182) and sides of the slots. The tank, header plate, and baffles are formed of aluminum and aluminum alloy materials. A bracket (200) or tabs (156) for securing a bracket can be formed on the header plate.