baber/WOPTO huggingface dataset:
Patent CA-2229846-A1 (CA)
Title: Method of sealing a port tube in a container
Inventor: SMITH SIDNEY T
IPC: B31B19/84
Filed: 1997-07-01
Abstract: The present invention provides a method for connecting rounded members (14) between planar members (16) comprising the steps of providing a rounded member (14) having an outer layer (20) having a first melting temperature range and an inner layer (22) concentrically disposed within the outer layer and having a second melting temperature range, the second melting temperature range being warmer than the first melting temperature range, providing a pair of opposed planar members (16), the planar members (16) each having a melting temperature within the first melting temperature range, positioning an end portion (14a) of the rounded member (14) between perimeter edges (18) of the pair of planar members (16) to define an interface area (26), applying pressure to the interface area (26) to collapse the end portion (14a) of the rounded member (14) to essen-tially a flattened position, applying sealing energy to the interface area (26) to heat the rounded member {14) to a temperature within the first melting temperature range but below the second melting temperature range, thereby forming a weld between the planar members (16), and the rounded member (14) in the interface area (26), and, releasing the pressure to the interface area (26) wherein the end portion (14a) of the rounded member (14) returns to an open position.
Patent CA-2231304-A1 (CA)
Title: Insulated type switchgear device
Inventor: SATO TAKASHI
IPC: H01H31/00
Filed: 1998-03-05
Abstract: In an insulated type switchgear device in which a pair of arc electrodes (4) and (5) are separably disposed in an opposing manner in a vacuum tube (30) and a movable conductor (3) extending from a back face of a movable arc electrode (5) to an outside from the vacuum tube (30) and the pair of arc electrodes (4) and (5) are designed to be separate through a rotation of the movable conductor (3) around a predetermined main axis (15), the movable arc electrode (5) is structured in such a manner that an electrode center of the movable arc electrode (5), when the movable arc electrode (5) is brought into its circuit breaking position (Y2), is to be located near a center axis of the stationary arc electrode (4), thereby the center of the movable arc electrode (5) is offset from the center axis of the stationary arc electrode (4) when the pair of arc electrodes (4) and (5) are brought into their circuit making position (Y1), whereby an insulation type switchgear device is provided which suppresses a possible offsetting of arc electrodes at circuit breaking position thereof, improves circuit breaking performance thereof and permits a down sizing thereof.
Patent CA-2232635-A1 (CA)
Title: Intravaginal rings with insertable drug-containing core
Inventor: NASH HAROLD
IPC: A61F6/14
Filed: 1997-07-22
Abstract: Disclosed is a vaginal ring containing a ring body made of a first polymeric material having at least one hollow internal channel defining an opening to the exterior of said body and which channel is adapted to receive a drug-containing core through said opening, and a core containing at least one intravaginally administrable drug dispersed in a second polymeric material disposed in the channel.  The core is positioned in the vaginal ring body suitably prior to use in order to substantially avoid initial bursts of drug into the tissues of the subject and resultant side effects such as nausea and vomiting.  Representative drugs include contraceptive agents and other steroidal substances for use in hormone replacement therapy.  Also disclosed are methods for preparing the vaginal rings, kits for assembling the vaginal rings, and methods of using the vaginal rings to achieve intravaginal delivery of drugs to a female.
Patent CA-2233721-A1 (CA)
Title: Procede de formation d'une monocouche de particules et produits realises selon ce procede
Inventor: WELCH EDWARD K
IPC: H01R43/00
Filed: 1997-08-01
Abstract: La présente invention concerne plusieurs procédés associés concourant à la formation de matrices aléatoires et ordonnées de particules et d'évidements, ainsi que de films contenant de telles matrices et évidements. L'invention concerne également les matrices aléatoires et ordonnées de particules et d'évidements et les films réalisés à partir de telles structures. De telles matrices ordonnées s'obtiennent en utilisant des compositions ferrofluides durcissables, solidifiables ou non durcissables / non solidifiables. Ces matrices et films peuvent contenir des particules électroconductrices particulièrement adaptées, dans le cas d'applications électroniques, à la réalisation du contact entre conducteurs ou plages de connexions.
Patent CA-2234484-A1 (CA)
Inventor: MONNERET CLAUDE
IPC: C07H17/04
Filed: 1996-10-11
Abstract: A compound of general formula (I), wherein X, Y, R¿1? and R¿2? are as defined in the description, a preparation method therefor and the use thereof as a drug and for treating cancer, are disclosed.
Patent CA-2235377-A1 (CA)
Inventor: GRIFFIN ARTHUR T JR
IPC: F02G3/00
Filed: 1995-10-20
Abstract: La présente invention concerne un ensemble moteur à turbine à gaz équipé d'un dispositif amélioré de refroidissement du brûleur (12), ce dispositif permettant d'éviter la défaillance thermique du brûleur (12) ainsi que la formation de NO¿x?. Le système comporte une pompe à liquide (40) entraînée par l'arbre de turbine (16) et alimentant en fluide de refroidissement une chambre annulaire de refroidissement (24) définie autour de la chambre de combustion centrale (22) du brûleur. Le fluide de refroidissement se trouve alors en situation d'échange thermique avec le brûleur (12), ce qui lui permet d'absorber l'énergie thermique des produits de combustion dans la chambre de combustion et de conférer au fluide un niveau d'énergie relativement supérieur. Ce fluide fortement chargé en énergie est alors injecté dans la chambre de combustion (12) pour y être mélangé avec les produits de combustion et introduit par l'orifice d'admission de la turbine en même temps que les produits de combustion. Le liquide de refroidissement peut, soit occuper totalement la chambre annulaire de refroidissement autour de la chambre de combustion (12), soit occuper partiellement cette chambre annulaire de refroidissement (24), mais le fluide de refroidissement arrivant au niveau de la chambre annulaire de refroidissement (24) peut déjà être à l'état gazeux, ce qui fait que la chambre de refroidissement est alors totalement remplie de vapeur (46).
Patent CA-2237399-A1 (CA)
Inventor: PROVINE WILLIAM DOUGLAS
IPC: B01J27/055
Filed: 1996-12-18
Abstract: L'invention porte sur un procédé amélioré de synthèse d'acétate de vinyle faisant intervenir une réaction en phase gazeuse d'acide acétique avec de l'éthylène en présence d'oxygène. On utilise au moins deux agents de modification de catalyseurs, produisant chacun une activité catalytique à des niveaux différents. On utilise des quantités relatives d'agents de modification de catalyseurs pour parachever la mise au point du rendement du catalyseur.
Patent CA-2238415-A1 (CA)
Title: Device and process for inspection of objects, particularly beverage bottles
Inventor: HEUFT BERNHARD
IPC: B07C5/34
Filed: 1997-01-20
Abstract: Objects (10) to be inspected, particularly empty beverage bottles, are conveyed on two conveyors (12, t4) which exhibit a mutual lateral separation and run at differing speeds so that the objects (10) rotate about their vertical axis. A bottom-inspection device (30, 32) is located within the gap between the conveyors (12, 14). A guiding railing (16) running in the direction of transport can be placed above the first, more slowly running conveyor (12).The objects (10) on the first conveyor stand on the edge strip between the guiding railing (16) and the edge of the first conveyor (12), and the width of this edge strip is up to approximately 1/3 of the diameter of the objects.
Patent CA-2238545-A1 (CA)
Title: An improved pseudo-random generator
Inventor: AIELLO WILLIAM ANTHONY
IPC: H04L9/00
Filed: 1996-10-25
Abstract: Methodology and concomitant circuitry to generate cryptographically strong pseudo-random bit streams utilize secure block cypher encoders. Each block cypher encoder (550) has a random key (540) and a first seed (510) as an input, and the output of each encoder is fed back to connect to its input. The first seed serves as the initial input, and each subsequent input is the immediate output of the block cypher encoder. Each bit in the cryptographically strong pseudo-random bit stream is related to a first inner product between input to the block cypher encoder and a second seed (520) and a second inner product (560) between the random key and a third seed (570).
Patent CA-2242173-A1 (CA)
Title: Stereo camera
Inventor: INABA MINORU
IPC: G03B35/10
Filed: 1998-06-30
Abstract: A stereo camera capable of photographing a stereo picture maintaining an optimum stereo effect. Right and left lens boards (42R, 42L) of a stereo camera (41) are coupled to a camera body (46) via upper and lower two sets of parallel links (47) . Parallel grooves (45L, 45R) are formed in the lateral direction in the inner portions of the lens boards (42L, 42R), and with which a circular eccentric cam (43) is engaged. When the shaft mounting the cam (43) is turned, the right and left lens boards (42R and 42L) move in parallel describing circular loci, making it possible to automatically adjust the focal point as well as the distance between the optical axes of the lenses, which is important for accomplishing a stereo effect.
Patent CA-2243253-A1 (CA)
Inventor: PELLERIN ERIC
IPC: H05K3/28
Filed: 1998-07-15
Abstract: Known organic solderability preservatives (OSP) contain an azole compound and are applied on a copper surface from an acidic solution. The OSPs are not visible to the naked eye when applied. A number of dyes compatible with the OSP solution and not interfering with solderability has been identified. The composition containing such a dye can produce a layer which is visible to the naked eye when applied even in a thin layer. The suitable dyes contain a cationic imine group having the general formula <see Fig. 1>     where X- is an anion such as chloride, iodide, sulphate, etc., or an organically bonded anionic group such as sulphonate.
Patent CA-2245713-A1 (CA)
Inventor: KREILIS GEORGE
IPC: C07D213/79
Filed: 1997-02-04
Abstract: Described are preferred processes for hydrolyzing substituted and unsubstituted cyanopyridines in the presence of a base and under substantially adiabatic conditions to produce pyridine substituted amides and/or pyridine substituted carboxylic acids. Preferred processes can be conducted in a variety of continuous reactors including cascades of reaction vessels, loop reactors or flow tube reactors. More preferred are the efficient and advantageous preparations of nicotinamide and niacin, which serve as important members of the B-vitamin complex.
Patent CA-2246647-A1 (CA)
Inventor: PERIE FREDERIC
IPC: B01D61/44
Filed: 1998-10-05
Abstract: Pour éliminer les sels (en particulier NH4Cl) présents dans une solution aqueuse de sulfonamide (en particulier CH3SO2NH2), on soumet la solution à une électrodialyse à deux compartiments. Par maintien du pH à une valeur inférieure à 7, on évite la formation d'ammoniac. La solution déminéralisée peut être concentrée pour récupérer, après cristallisation, le sulfonamide. Ce procédé permet de réaliser le dessalage avec des rendements élevés.
Patent CA-2247952-A1 (CA)
Title: Process for preparing optically active 2-amino-w-oxoalkanoic acid derivatives
Inventor: PLAUM MARCUS JOSEPH MARIA
IPC: C07C255/24
Filed: 1998-09-23
Abstract: Process for preparing an (S)-2-amino-.omega.-oxoalkanoic acid derivative in which the corresponding aldehyde is converted into the corresponding acetal-protected aldehyde, the acetal-protected aldehyde is converted into the corresponding aminonitrile, the aminonitrile is converted into the corresponding amino acid amide, the amino acid amide is subjected to an enzymatic, enantioselective hydrolysis in which the R enantiomer of the amino acid amide remains and the S enantiomer is converted into the S amino acid, and the S amino acid is isolated. Preferably, the reaction mixture obtained after the conversion of the aminonitrile into the amino acid amide is treated with a benzaldehyde, upon which the Schiff base of the amino acid amide is formed, the Schiff base is separated and is converted into the free amino acid amide.
Patent CA-2249710-A1 (CA)
Title: Colorant
Inventor: KAUFMANN RAINER
IPC: C09D11/16
Filed: 1997-03-18
Abstract: L'invention concerne un colorant qui contient de l'eau, un ou plusieurs colorant(s) à groupes anioniques dont la valeur pK¿a? ne dépasse sensiblement pas A, en combinaison avec le progéniteur d'un premier auxiliaire, ledit premier auxiliaire en tant que tel présentant la valeur pK¿a? C et C pouvant être supérieure ou inférieure à A ou être égale à A. L'invention concerne en outre un procédé d'impression ou d'écriture faisant appel à un colorant de ce type.
Patent CA-2252553-A1 (CA)
Title: Fly-by xor for generating parity for data gleaned from a bus
Inventor: KLEIMAN STEVEN R
IPC: G06F11/10
Filed: 1998-02-27
Abstract: The invention provides a method and system for performing XOR operations without consuming substantial computing resources. A specialized processor is coupled to the same bus as a set of disk drives; the specialized processor reviews data transfers to and from the disk drives and performs XOR operations on data transferred to and from the disk drives without requiring separate transfers. The specialized processor maintains an XOR accumulator which is used for XOR operations, which records the result of XOR operations, and which is read out upon command of the processor. The XOR accumulator includes one set of accumulator registers for each RAID stripe, for a selected set of RAID stripes. A memory (such as a contents-addressable memory) associates one set of accumulator registers with each selected RAID stripe.
Patent CA-2254300-A1 (CA)
Title: Method of fabricating a door and a door
Inventor: BARBER DOUGLAS VICTOR
IPC: E06B3/70
Filed: 1998-11-23
Abstract: A method of fabricating a door and a door. A first step involves molding a first door skin. A second step involves molding a second door skin. One or both of the first door skin and the second door skin have molded in place rails. One or both of the first door skin and the second door skin have molded in place stiles. A third step involves integrally bonding the first door skin and the second door skin. This produces a door having a body with integrally formed skins, rails, and stiles. A lock latch area and hinge pockets can also be integrally molded into the door.
Patent CA-2257211-A1 (CA)
Title: Unite d'abonne pour systeme de transmission sans fil amdc
Inventor: ODENWALDER JOSEPH P
IPC: H04B1/7115
Filed: 1997-06-09
Abstract: L'invention concerne un procédé et un appareil permettant une transmission sans fil AMDC à grande vitesse. Un ensemble de canaux abonné à réglage de gain individuel sont formés par l'intermédiaire de l'emploi d'un ensemble de codes de sous-canal orthogonaux (W1) présentant un petit nombre d'élément d'étalement PN par période de signal orthogonal. Les données à transmettre par l'intermédiaire d'un des canaux de transmission subissent un codage de correction d'erreurs à faible débit (134) ainsi qu'une répétition séquentielle avant d'être modulées avec l'un des codes de sous-canal, de faire l'objet d'un réglage de gain (152, 154, 156, 158) et d'être sommées (160) avec des données modulées à l'aide des autres codes de sous-canal. Les données sommées résultantes sont modulées à l'aide d'un code long utilisateur et d'un code d'étalement pseudo-aléatoire (code PN), et transposées en fréquence pour transmission.
Patent CA-2258676-A1 (CA)
Title: Procede de recyclage de plastique et procede pour produire des materiaux plastiques
Inventor: SCHALLENBERG GUENTER
IPC: B29B17/00
Filed: 1997-06-10
Abstract: L'invention concerne un procédé de recyclage et de production de matières plastiques, de mélanges plastiques et de matériaux plastiques à l'aide de matières plastiques ou de mélanges plastiques nouveaux, retraités ou anciens ou à partir de déchets plastiques triés ou non. Selon ce procédé, a) un matériau support A comprenant un matériau plastique ou un matériau à base de déchets plastiques, contenant un plastique homogène d'un seul type ou des plastiques de différentes sortes, un matériau de composition X quelconque ou inconnue et d'un constituant additionnel Z, sélectionné dans les acides gras, des mélanges d'origine naturel ou synthétique contenant de l'acide gras, des dérivés d'acide gras libérant de l'acide gras dans les conditions du procédé et des alcools gras sont mélangés conjointement; par rapport au volume total, A et X contiennent conjointement au moins une quantité de plastique telle que les constituants non plastiques dudit mélange puissent être inclus pour former une matière homogène ou partiellement homogène; b) ce mélange est transporté par un convoyeur sous malaxage mécanique continu, pétrissage ou compactage, et est soumis le long du parcours à un traitement thermique en plusieurs étapes intervenant par sections, les températures régnant au cours des différentes étapes étant comprises entre 60 et 400 ·C indépendamment les unes des autres; et c) le mélange soumis au traitement thermique est éjecté par l'intermédiaire d'un ajutage en vue d'un traitement ultérieur ou d'un façonnage.
Patent CA-2259465-A1 (CA)
Title: Ultrasound-hall effect imaging system and method
Inventor: WEN HAN
IPC: G01N27/82
Filed: 1997-07-02
Abstract: A system and method of imaging based on the interaction of ultrasonic pulses with a magnetic field. A static magnetic field is applied to an object having conductive properties. An ultrasound pulse is propagated into the object, and an electrical signal is detected which is related to the interaction of the ultrasound pulse local displacement of the conductive object and the magnetic field. Alternatively, and equivalently, an electrical pulse is propagated into the object, and an ultrasound signal is detected which is related to the interaction of the electrical pulse generated in the conductive object and the magnetic field.  The acquired acoustic signals or the acquired electrical signals are processed to provide an image of the object. The acquired signals are dependent on local conductivity as well as local acoustic properties.
Patent CA-2262871-A1 (CA)
Title: Corrosion inhibition
Inventor: OETTER GUNTER
IPC: C09K8/54
Filed: 1997-07-16
Abstract: The invention relates to the use of at least one compound of general formula (I), in which R1, R2 and R3 independently of one another represent a hydrogen atom or an alkyl or alkenyl radical; R4 represents an alkyl or alkenyl radical and n represents 1 to 5; or of an acid addition salt thereof, as an inhibitor of corrosion in the extraction, processing, storage and transportation of crude oil and natural gas, and to a process for the preparation of this compound.
Patent CA-2262984-A1 (CA)
Title: Polyisocyanate compositions for the preparation of flexible polyurethane foams
Inventor: NARAYAN THIRUMURTI
IPC: C08G18/76
Filed: 1999-03-03
Abstract: The invention provides a liquid polyisocyanate prepolymer composition which is a result of combining about 50.0 to 90.0 percent by weight of an isocyanate blend (a.) having 55.0 to 75.0 weight percent 4,4'-MDI, 17.0 to 27.0 weight percent 2,4'-MDI, 1.0 to 10.0 weight percent 3-ring MDI oligomer, and 1.0 to 15.0 weight percent n-ring MDI oligomer (n greater than 3); about 5.0 to 30.0 weight percent of a polyhydroxy containing polyol (b.) having a molecular weight of from 700 to about 6,000; and about 15.0 to 75.0 weight percent of a toluene diisocyanate (c.).  The resulting isocyanate prepolymer composition has a free NCO content of from about 30.0 to 45.0 weight percent and particularly desirable flow characteristics.  The invention further provides a method of making an isocyanate prepolymer composition, a process of making a polyurethane foam utilizing the isocyanate prepolymer composition of the invention, and polyurethane foams produced by the disclosed process.
Patent CA-2265261-A1 (CA)
Title: Anchor bolt for friable material
Inventor: GAUTHIER ALAIN
IPC: E04B1/41
Filed: 1999-03-11
Abstract: The anchor bolt comprises a generally hollow body (1) with a drilling end (4), a supporting collar (5) at the other end and an external screw thread (6). The collar (5) forms two openings (10, 11), diametrically opposed, for receiving an anti-rotation pin (8, 9) removably fixed to the collar (5) and movable in the opening (10, 11). The pins (8, 9) are intended to anchor both in the collar (5) and in the receiving material, in order to prevent rotation of the bolt.
Patent CA-2266723-A1 (CA)
Inventor: GLENN ROBERT WAYNE JR
IPC: A61Q19/10
Filed: 1997-09-22
Abstract: Moisturizing liquid personal cleansing emulsion compositions which comprise a moisturizing phase and an aqueous cleansing phase are disclosed. The moisturizing phase comprises from about 1 % to about 35 %  by weight of the composition of lipophilic skin moisturizing agents comprised of droplets having a particle size distribution such that at least about 10 % by weight of the droplets have a diameter of at least about 500 microns. The aqueous cleansing phase comprises from about 0.1 % to about 10 % by weight of the composition of a stabilizer, from about 5 % to about 30 % by weight of the composition of a lathering surfactant, and water.
Patent CA-2268086-A1 (CA)
Inventor: ALLEN HAMISH JOHN
IPC: A61P25/28
Filed: 1997-10-09
Abstract: L'invention concerne des composés inhibiteurs de l'enzyme de conversion de l'interleukine 1 beta , représentés par la formule (I). L'invention se rapporte également à une méthode de traitement d'ictus, de lésions dues à la reperfusion, de la maladie d'Alzheimer, de la shigellose, de maladies inflammatoires et de chocs septiques, et à une composition pharmaceutiquement acceptable qui contienne un composé inhibiteur de l'enzyme de conversion de l'interleukine 1 beta .
Patent CA-2270051-A1 (CA)
Title: Three-dimensional shape data processing device, carved plate and carving device
Inventor: KAWAMOTO MEITETSU
IPC: G06T19/00
Filed: 1998-09-08
Abstract: A 3-dimensional shape data processing device which processes data on a 3-dimensional shape to be formed in a flat plate, comprising synthesizing means (5 and 6) which overlaps sets of 3-dimensional data, and erases one of the sets while the other is left in each of the overlapped regions to perform synthesization, and an interpolating means (7) which provides a certain interpolation regions along the boundaries between the sets of 3-dimensional data subjected to synthesization and performe interpolation. The 3-dimensional data are interpolated so that the height of the synthesized 3-dimensional data continuously changes in each interpolation region. There is also disclosed a carving device for carving a plate while it is immersed in cutting oil to prevent cuttings from being welded to the cutting blade and carved plate even if the plate is made of noble metal, thereby improving the carving quality.