baber/WOPTO huggingface dataset:
Patent CA-2255062-A1 (CA)
Inventor: NAGYNE ARVAI EDIT
IPC: C07K1/16
Filed: 1998-03-23
Abstract: A process for the chromatographic purification of cyclosporin A from a crude product containing cyclosporin complex by using a column filled with silica gel and by the application of multi-step chromatography with a column filled with normal phase silica gel and by a solvent mixture containing toluene as the major component is provided.
Patent CA-2257628-A1 (CA)
Title: Breathable absorbent articles having a chelating agent based odour control system
Inventor: GUARRACINO MARIO
IPC: A61L15/18
Filed: 1997-05-23
Abstract: The present invention relates to a breathable absorbent article, such as sanitary napkins and baby diapers having a breathable backsheet, and comprising an odour control system comprising chelating agent. The combination of breathability and the odour control system deliver an improved odour control performance.
Patent CA-2259138-A1 (CA)
Inventor: DE ROSIER THERESE A
IPC: C12N9/96
Filed: 1997-07-02
Abstract: La présente invention concerne un procédé et une formulation permettant la stabilisation d'un enzyme en vue de sa conservation à des températures supérieures à la température de congélation. L'invention concerne en particulier l'utilisation d'excipients formulés qui, lorsqu'ils sont ajoutés à un enzyme ou à un mélange d'enzymes et sont par la suite lyophilisés, ont un pouvoir stabilisant. Après reconstitution, les matières stabilisées sont utiles pour dosages, diagnostic ou kits de recherche en biologie moléculaire, ainsi que pour d'autres applications biologiques.
Patent CA-2259312-A1 (CA)
Inventor: LE-KHAC BI
IPC: C08G18/48
Filed: 1997-10-14
Abstract: Double metal cyanide (DMC) catalysts useful for epoxide polymerizations are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and from about 2 to about 80 wt.% of a functionalized polymer or a water-soluble salt derived from the polymer. The catalysts are easy to prepare and isolate, are substantially non-crystalline, and have high activity for polymerizing epoxides. Polyols made from the catalysts have exceptionally low unsaturations, low viscosities, and reduced levels of high molecular weight polyol tail.
Patent CA-2259328-A1 (CA)
Title: Memory card device, video gate device and program providing medium
Inventor: SUGIMURA AKIHIRO
IPC: A63F13/54
Filed: 1998-04-24
Abstract: A memory card device by which application programs downloaded from a machine body can be independently executed. The memory card device (40) comprises:  control means (41) such as a microcomputer having a program memory (41a) for storing programs; a connector (42) for connection to a machine body such as a video game machine; a nonvolatile memory (46) for storing data; input means (43) such as buttons for operating the stored programs; and display means (44) for displaying informaton in accordance with the programs. The programs transferred from the machine body are written in the program memory (41a) through the control means (41). By operating the input means (43), the program is executed on the memory card device (40) independently of the machine body.
Patent CA-2259545-A1 (CA)
Title: Strip of containers for liquids or pastes
Inventor: CORNO MARCO DEL
IPC: B65D1/04
Filed: 1997-07-03
Abstract: A strip of containers (2) for liquids, pastes or powders, for pharmaceutical, diagnostic, cosmetic or similar use, including a series of containers (2) closed at one end (3) and with a removable plug (4) at the other end, the containers (2) being joined together by breakable intermediate connection elements (10) and by breakable terminal connection elements (11) positioned in correspondence with the plugs (4) and in which the intermediate (10) and/or terminal (11) breakable connection elements lie at least on different planes from that which contains the x axes of the said containers (2), so as to stiffen the structure of the container (2) strip.
Patent CA-2261565-A1 (CA)
Title: Hypothalamus-specific polypeptides
Inventor: GAUTVIK KAARE M
IPC: A61K48/00
Filed: 1997-08-01
Abstract: Directional tag PCR substractive hybridization was used to construct a rat hypothalamic cDNA library from which cerebellar and hippocampal sequences had been depleted. Hypocretin, one of several novel hypothalamic-specific polypeptides identified, isolated and sequenced, is localized to regions of the hypothalamus involved in appetite and feeding behavior. Hypocretin polypeptides are biologically active, producing electrical changes in neurons, lowering body temperature and reducing food intake. The invention provides hypocretin polynucleotides and hypocretin polypeptides as well as antibodies, oligonucleotides, diagnostic kits and methods, and therapeutic compositions and methods.
Patent CA-2262527-A1 (CA)
Inventor: LIN BOR-CHIAN
IPC: C12Q1/68
Filed: 1997-08-13
Abstract: Provided herein is a method for removing nucleic acid amplification reaction inhibitors from test samples.
Patent CA-2263249-A1 (CA)
Inventor: MALONEY ROBERT K
IPC: A61B3/024
Filed: 1997-08-04
Abstract: L'invention porte sur une technique d'évaluation de la topographie d'une cornée (140), qui utilise l'image virtuelle d'un motif de kératoscope. Le système d'évaluation de la topographie comprend une source de lumière (110) structurée servant à créer le motif de kératoscope (5) ou un autre motif de diagnostic, un ensemble optique (130) servant à focaliser le motif créé sur ou derrière la cornée (140), à saisir l'image réfléchie par l'oeil du patient et à la diriger vers un système d'imagerie (150, 195) où elle sera traitée. La lumière émise par la source lumineuse (110) ne se situe pas de préférence dans le spectre visible de façon à ne gêner qu'au minimum le patient. La topographie étant évaluée par une image virtuelle projetée, il n'y a ni ombre de nez ni ombre des sourcils, ce qui permet une meilleure couverture de la cornée. Le système optique comprend une butée d'ouverture (190) qui se rapproche du centre d'une cornée (140) normale. On réalise ainsi une saisie grand angle, les rayons réfléchis qui atteignent le système (150, 195) d'imagerie apparaissant comme s'ils provenaient du centre de la cornée (140). L'invention concerne également un mécanisme de détection de la pupille qui est plus facile à utiliser, car il fonctionne indépendamment de l'illumination du motif de diagnostic. Dans un autre mode de réalisation, le motif de diagnostic est produit au moyen d'un générateur de motifs à lumière variable qui offre des possibilités de diagnostic. Ledit système d'évaluation de la topographie peut être reconfiguré pour servir de dispositif d'évaluation du champ visuel ou périmétrique.
Patent CA-2263378-A1 (CA)
Inventor: KEDDIE STEVEN
IPC: H02P8/14
Filed: 1999-02-25
Abstract: There is a stepper motor that has a control system that utilizes both a closed and open loop control. Uniquely, the closed loop operates from zero to about degrees of a motor shaft rotation, and the open loop control operates from about 300 to 360 degrees of the shaft rotation. A position sensor (16), which is connected to the shaft (14), has a sensing range where the position sensor senses the shaft position, and a dead zone range where the position sensor does not work. There is a determining means (46), connected to the position sensor, for determining if a next position of the shaft is going to be in the sensing range or the dead zone range. There is also a sensing control means (48), also referred to as the closed loop control process, responsive to the determining means, for controlling the stepper motor when the shaft is to be moved within the sensing range. Then there is a dead zone control means (50), also referred to as the open loop control process, responsive to the determining means, for controlling the stepper motor when the shaft is to be moved into the dead zone range.
Patent CA-2268058-A1 (CA)
Title: Interlocking jaw power tongs
Inventor: BUCK DAVID A
IPC: E21B19/16
Filed: 1997-10-10
Abstract: The present invention provides an improved power tong (1) having a body (2) with a rotating assembly (6). The power tong (1) further has a plurality of jaw members (20, 21, 35) positioned within the rotating assembly (6) with two of the jaw members being pivoting jaws (20, 21) adapted to interlock when in a closed position. In an alternate embodiment, the improved power tong (1) will have a compensating jaw assembly (35, 37) to limit the axial load placed on the tubular member (13) being gripped.
Patent CA-2268248-A1 (CA)
Inventor: HOLDER JOSEPH P
IPC: D03D1/00
Filed: 1997-10-20
Abstract: This disclosure describes fabric and a method for making fabric, for use in a flexible pressure vessel or other fabric structures, which has an unbalanced woven construction and has a balanced or nearly balanced modulus of elasticity for the end-use conditions of this fabric.  Unbalanced woven fabrics that do not have balanced properties produce unequal stretching and are susceptible to premature failure. The present invention of unbalanced woven fabric construction with balanced mechanical properties such as modulus of elasticity can be used to optimize fabric strength, mass, volume, and performance characteristics and also reduce manufacturing costs for various fabric structure applications. Balanced mechanical properties for the fabric structure are achieved by altering the force of the fabric by increasing or decreasing the number of yarns in a particular direction of the fabric, by changing the strain during stretch of the fabric, or by alternative weaves of the fabric.
Patent CA-2268516-A1 (CA)
Title: Friction element in composite carbon/carbon-silicon carbide material and method for manufacturing same
Inventor: LAXAGUE MICHEL
IPC: C04B41/87
Filed: 1997-10-14
Abstract: A friction element is made out of a composite material comprising carbon fiber reinforcement and a matrix which, at least in the vicinity of the or each friction face, comprises: a first phase in the vicinity of the reinforcing fibers and containing pyrolytic carbon obtained by chemical vapor infiltration; a refractory second phase of carbon or ceramic obtained at least in part by pyrolysis of a liquid precursor; and a silicon carbide phase obtained by siliciding, for example. At least in the vicinity of the or each friction face, the composite material is preferably constituted, by volume, at least as follows: 15% to 35% carbon fibers; 10% to 55% first matrix phase containing pyrolytic carbon; 2% to 30% second matrix phase of refractory material; and 10% to 35% silicon carbide. The invention is applicable in particular to braking for rail or road vehicles.
Patent CA-2269605-A1 (CA)
Inventor: NOYES DANIEL G
IPC: C02F1/463
Filed: 1997-10-16
Abstract: L'invention concerne un appareil (200) pour le traitement d'effluents, comprenant une chambre (210) dotée d'une entrée (212) et d'une sortie (252), une multiplicité d'électrodes (211) de type plaque, qui s'étendent verticalement dans ladite chambre (210), et une alimentation électrique connectée à la multiplicité d'électrodes (211) de type plaque. Cette multiplicité d'électrodes (211) de type plaque définit une multiplicité de canaux qui s'étendent à l'intérieur de la chambre (210). Chaque canal parmi la multiplicité de canaux se situe entre des électrodes (211) adjacentes. La multiplicité d'électrodes (211) est placée entre l'entrée (212) et la sortie (252). L'alimentation électrique fournit de l'électricité d'une première polarité à un premier ensemble parmi la multiplicité d'électrodes (211). Ladite alimentation électrique fournit de l'électricité d'une polarité opposée au second ensemble d'électrodes (211).
Patent CA-2270518-A1 (CA)
Title: Revetement de niveau moleculaire de particules d'oxyde metallique
Inventor: ST CLAIR TERRY LEE
IPC: C09D7/62
Filed: 1997-07-25
Abstract: On prépare des particules (22) d'oxyde métallique, enrobées de polymère (24), en combinant un acide de polyamide placé dans un solvant polaire aprotique, avec une solution d'alcoxyde métallique. On a imidifié le polymère et on a formé simultanément l'oxyde métallique, dans un solvant organique porté à reflux. L'oxyde polymère-métal résultant est un mélange, intimement amalgamé et mélangé, possédant les propriétés synergiques à la fois du polymère et de l'oxyde métallique pré-céramique. Ces particules d'oxyde métallique enrobées sont utiles dans de multiples applications, notamment dans la production de crèmes hydratantes pour la peau et de peintures résistantes aux intempéries, en tant que charge pour papier, dans la fabrication d'encre d'impression comportant une charge et stable à la lumière ultraviolette, ces particules étant extrudées sous forme de fibres ou de rubans et les revêtements destinés à ces fibres pouvant être utilisés dans la production de panneaux structuraux composites.
Patent CA-2270577-A1 (CA)
Inventor: HUGUENIN DENIS
IPC: C01F7/70
Filed: 1997-10-28
Abstract: La présente invention concerne un composé à base d'un alcalino-terreux, de soufre et d'aluminium, de gallium ou d'indium, son procédé de préparation et son utilisation comme luminophore. Le composé de l'invention répond à la formule AB2S4 dans laquelle A représente un alcalino-terreux, B l'aluminium, le gallium ou l'indium, et il est caractérisé en ce qu'il se présente sous forme d'une poudre de teneur résiduelle en oxygène d'au plus 1,5 % et constituée de particules de taille moyenne d'au plus 10 .mu.m. Ce composé est obtenu par un procédé qui comporte les étapes suivantes: on forme une solution ou une suspension comprenant des sels des éléments A et B, on sèche par atomisation la solution ou la suspension; on fait réagir le produit obtenu à l'étape précédente avec du sulfure de carbone ou avec un mélange de sulfure d'hydrogène et de sulfure de carbone. Le composé de l'invention peut être utilisé comme luminaphore, notamment en cathodoluminescence.
Patent CA-2272455-A1 (CA)
Inventor: MAUBRU MIREILLE
IPC: C09B67/00
Filed: 1998-09-22
Abstract: The invention concerns a cosmetic composition for treating keratin fibres comprising in an appropriate support for keratin fibres: (a) at least an oxidoreductase type enzyme with 2 electrons in the presence of at least a donor for said enzyme; (b) at least an anionic amphiphilic polymer comprising at least an allyl structural unit with a fatty chain; and the methods for treating keratin fibres in particular the methods for dyeing, permanently setting or bleaching hair using said composition.
Patent CA-2273962-A1 (CA)
Inventor: WEST PETER JOHN
IPC: C08G18/67
Filed: 1997-12-04
Abstract: Cross-linked polyurethanes wherein the polyurethane comprises acrylated isocyanate groups cross-linked with polyamine or disulphide groups. The crosslinked polyurethanes may be incorporated into pressure-sensitive adhesives.
Patent CA-2273992-A1 (CA)
Title: Ultrasonic fastening system and method
Inventor: FREITAS GLENN A
IPC: B32B7/04
Filed: 1997-12-22
Abstract: An ultrasonic fastening system wherein an ultrasonic transducer (48) is used to insert a plurality of fasteners (12) supported by a compressible member (10) into two components (14, 16) to be joined or a single composite part to be reinforced.
Patent CA-2276854-A1 (CA)
Title: Fishing device container
Inventor: CHOREY THOMAS V JR
IPC: A01K97/06
Filed: 1999-06-29
Abstract: The present invention discloses containers for storing fishing lures, baited or unbaited hooks, terminal tackle, fishing accessories, bait, fishing lines and other fishing devices ("target objects"). The containers are designed for quick and efficient insertion of the target objects into the containers. Fasteners attached to such containers, in addition to closing the opening of the containers, allow for quick attachment and detachment of the containers to and from a fishing rod, thereby capturing and retaining line and thus minimizing entanglement. These fastening devices may also be used to attach the containers to other non-rod objects such as boats or clothing for immediate access to or storage of target objects. All versions of containers may be formed of at least partially dear plastic or other materials for ready identification of the contained materials.
Patent CA-2278212-A1 (CA)
Title: Vehicle air outlet with combined flow straightener and shutoff door
Inventor: CROCKETT STEVEN
IPC: F24F13/06
Filed: 1998-02-17
Abstract: A vehicle air outlet having an outlet bell (14'), an upstream shutoff valve (40') having an open and closed position, a directionality control member (16') which is downstream of the shutoff valve. The upstream shutoff valve includes a flow straightener assembly (FS) rendered functional when the shutoff valve is in a fully opened position and non-functional when the shutoff valve is in a closed position. The shutoff valve is mounted on a rotary shaft (30') in the air outlet, and the flow straightener is mounted on the same rotary shaft with the shutoff valve and is operated commonly on an operation of the rotary shaft.
Patent CA-2279664-A1 (CA)
Title: Serpentine coiled ladder stent
Inventor: PINCHASIK GREGORY
IPC: A61F2/06
Filed: 1999-08-05
Abstract: A serpentine coiled ladder stent is provided, in which the coil is formed from a wound strip of cells, wherein the sides of the cells are serpentine. Thus, the stent is comprised of a strip helically wound into a series of coiled windings, wherein the strip is formed of at least two side bands connected to each other, for example by a series of cross struts. Each side band is formed in a serpentine pattern comprising a series of bends, wherein upon expansion of the stent, the bends of the side bands open to increase the length of each of the individual cells in the helical direction, thereby lengthening the strip in the helical direction to allow the stent to expand without any significant unwinding of the strip.
Patent CA-2282324-A1 (CA)
Inventor: SCHAEFER HEINZ
IPC: F42D1/05
Filed: 1998-02-26
Abstract: L'invention concerne un système de forage (10) de puits (1) à l'explosif (10). Selon ce système, les forages sont effectués en différents niveaux successifs (12, 13), pour chacun desquels sont prévues plusieurs charges (16). A chaque niveau correspond un commutateur adressable (14) qui, en position de repos, branche le circuit d'allumage (11) et, en position de travail, sépare ledit circuit d'allumage pour le raccorder à un dispositif de commande d'allumage (15) pour le niveau de forage correspondant.
Patent CA-2286441-A1 (CA)
Title: Transparent substrate stacked with thin layers
Inventor: RONDEAU VERONIQUE
IPC: C03C17/36
Filed: 1999-10-19
Abstract: The dielectric-based coating above the metallic layer comprises a sequence of layers deposited in the order: (a) layer(s) of materials of refractive index ni-2 above 2.2; (b) layer(s) of materials of refractive index ni-1 at least 0.3 below that of the last layer(s) ni; and (c) last layer(s) material of refractive index ni more or less equal to ni-2. The metallic layer with infrared reflecting properties is based on silver, is preferably in direct contact with the subjacent dielectric material-based coating, has a geometrical thickness of 7-20, especially 9-5 nm, for low emissivity, and 20-25 nm for solar protecting properties. A protective metal layer of thickness not greater than 2 nm and selected from Nb, Ti, Cr or nickel, or an alloy of at least two of these metals, especially Nb/Cr or Ni/Cr, can be located immediately above and in contact with the metallic layer with infrared reflecting properties. The dielectric coating below the IR-reflecting metal layer comprises at least two layers, especially two metal oxide layers or a metal nitride layer, e.g. AlN and S3N4, and a metal oxide layer, e.g. ZnO, SnO2 and TiO2, preferably with direct contact between the dielectric coating and the IR-reflecting metallic layer. The last layer is selected from one of the following: Si3N4, Si3N4:Al, AlN, SnO2, SnZnOx and carbides such as SiC, TiC, CrC and TaC. Independent claims are given for: (A) Low emissivity or solar protection multiple glazing unit; and (B) Low emissivity double glazing unit.
Patent CA-2286506-A1 (CA)
Title: A folding boom
Inventor: NOLE MARK JEFFERY
IPC: A01B69/02
Filed: 1999-10-07
Abstract: A folding boom for a tri-fold row marker for an agricultural implement. The boom comprises three segments, an inboard segment pivotally coupled to the toolbar, a middle segment pivotally coupled to the inboard segment, and an outboard segment pivotally coupled to the middle segment. Control of the boom during folding and unfolding is maintained by a toggle link mechanism having a cam a cam follower and a system of pivots and linkages. Dynamic forces are dampened at both ends of the folding and unfolding by use of a cushion hydraulic cylinder with flow limiting means at each end of the cylinder stroke.
Patent CA-2288079-A1 (CA)
Title: Heating apparatus
Inventor: GAUDIN JEAN-MARC
IPC: F23D14/30
Filed: 1998-05-19
Abstract: The invention concerns an infrared heating apparatus (1), in particular for the agricultural sector, for directional downward heating in livestock buildings, comprising at least one burner delimiting at least a conduit supplying an air/gas mixture, a reflector (3) enclosing the burner (2) and an air/gas combustion chamber (4) located at said burner conduit (2) end coaxial with the reflector (3). The invention is characterised in that the burner combustion chamber (4) arranged coaxial with the reflector (3) co-operates with a solid screen (5) located beneath and in the axis of the burner conduit (2) to stop falling particles coming from the combustion and to reduce the intensity of the apparatus axial radiation thereby eliminating central overheating. The invention is useful for heating livestock buildings.
Patent CA-2288282-A1 (CA)
Title: Essai immunologique
Inventor: RINGEL KARL PETER
IPC: G01N33/68
Filed: 1998-05-01
Abstract: L'invention se rapporte à un procédé permettant de réaliser un essai immunologique d'une substance à analyser contenue dans un échantillon liquide. Ce procédé comporte les étapes suivantes consistant à déposer une plaque réactive dans une cuve; à ajouter dans la cuve un premier réactif liquide qui réagit avec la surface de la plaque en vue de s'y fixer; à ajouter dans la cuve l'échantillon liquide contenant la substance à analyser testée, ce qui permet à la substance à analyser de se fixer, directement ou indirectement, et de manière immunospécifique, audit premier réactif sur ladite plaque; à analyser, directement ou indirectement, la substance à analyser fixée sur la plaque. La plaque peut être un disque de papier ou la matière plastique présentant une surface activée. Ce procédé peut être utilisé pour le diagnostic d'allergies, le premier réactif étant un allergène et la substance à analyser une IgE immunospécifique à cet allergène.
Patent CA-2290460-A1 (CA)
Title: Hydrocarbon cracking with positive reactor temperature gradient
Inventor: ROWE JANET T
IPC: C07C11/04
Filed: 1998-06-08
Abstract: The invention provides an improvement in processes for cracking hydrocarbons to prime olefins, ethylene and propylene, which comprises applying a positive temperature gradient across a catalyst contact zone. The temperature gradient may be uniform or stepwise, may be one reactor or a series of reactors so long as at least one down stream cracking zone is operated at a higher temperature than an upstream zone.