baber/WOPTO huggingface dataset:
Patent CA-2197800-C (CA)
Title: A method for inhibiting hydrate formation
Inventor: COLLE KARLA SCHALL
IPC: C09K8/52
Filed: 1995-08-31
Granted: 2001-02-20
Abstract: A method for inhibiting the formation of clathrate hydrates in a fluid (e.g. natural gas) having hydrate-forming constituents is disclosed. The hydrate inhibitors used in the method are substantially water soluble polymers formed from an N-substituted acrylamide having two nitrogen substituent groups, R1 and R2, where R1 is a hydrocarbon group having from one to ten carbon atoms and zero to four heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur, and combinations thereof, and R2 is a hydrogen atom or a hydrocarbon group having from one to ten carbon atoms and zero to four heteroatoms selected from the group consisting of carbon, nitrogen, oxygen, and sulfur. Alternatively, R1 and R2 may be linked to produce a cyclic ring having ten atoms comprising a combination of between three and ten carbon atoms and zero to four heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur, and combinations thereof. Some examples of such inhibitors include poly(N-ethylacrylamide), poly(N,N-diethylacrylamide), poly(N-methyl, N-acrylamide), poly(iso-propylacrylamide), poly(N-propylacrylamide), poly(N-cyclopentylacrylamide), poly(N-cyclohexylacrylamide), poly(acryloylpyrrolidine), poly(acryloylpiperidine), poly(acryloylmorpholine) and various N-substituted acrylamide copolymers.
Patent CA-2200166-C (CA)
Title: Process and apparatus for refining silicon
Inventor: ARATANI FUKUO
IPC: C01B33/037
Filed: 1997-03-17
Granted: 2002-01-22
Abstract: Process and apparatus for refining silicon by treatment in a graphite vessel with irradiation with an electron beam while removing impurity elements by evaporation.  A single graphite vessel is used, or plural graphite vessels are arranged in sequence.  During treatment in successive graphite vessels, molten silicon is poured in succession from one vessel to another.  Use of graphite vessels improves heat efficiency, prevents contamination and produces refined silicon containing very low contents of impurities.
Patent CA-2201625-C (CA)
Inventor: BEIGEL MICHAEL L
IPC: G06K19/07
Filed: 1995-10-03
Granted: 2007-12-04
Abstract: Une étiquette universelle (1) destinée à être utilisée avec une grande diversité de lecteurs de configurations différentes, comprend un transducteur (3), un modulateur (11) connecté aux bornes du transducteur (3) et un moyen de commande (13). Le moyen de commande (13) est conçu pour commander le modulateur (11) de sorte qu'il entraîne le transducteur (3) au moyen d'une pluralité de différents signaux de message après interrogation par un lecteur, l'identité de l'étiquette étant intégrée dans chacun des signaux de message. Les signaux de message peuvent être transmis simultanément, séquentiellement ou les deux. Un signal de message est constitué d'une séquence de segments de signaux contigus, chacun de segments représentant la valeur d'un groupe de N bits, N étant un entier. Un segment de signaux est un signal périodique caractérisé par les paramètres fréquence, phase et amplitude. Les segments de signaux qui représentent les valeurs d'un groupe de N bits se différencient par les valeurs d'au moins un paramètre.
Patent CA-2210421-C (CA)
Title: Deep drilling an/or well pump system using a hydrodynamic retarder to compensate for restoring torques released in the system
Inventor: HOLLER HEINZ
IPC: E21B3/02
Filed: 1997-07-15
Granted: 2007-10-02
Abstract: A deep drilling or deep well pump system includes a driving motor, a driven component connected to the driving motor, and a hydrodynamic retarder. The hydrodynamic retarder includes a rotor and stator blade wheel. The rotor blade wheel and the stator blade wheel together form a toroidal working space continuously filled with a working medium during operation of the deep drilling device or the deep well pump device. The rotor blade wheel is continuously connected at least indirectly to the driving motor. The blading of the rotor and stator blade wheel is designed so that, owing to the blade direction in the drive mode, the rotor blade wheel revolves freely. During the occurrence of restoring forces on the driven components, the retarder operates in a braking manner.
Patent CA-2214811-C (CA)
Inventor: SCHMIDT PHILIP
IPC: A61M25/06
Filed: 1997-09-08
Granted: 2006-11-21
Abstract: An intravenous catheter insertion device which incorporates a controlled motion lock including telescopingly arranged slide members for a safety catheter constituting a needle tip protector mechanism which provides fail-safe protection for clinical personnel against the possibility of accidental punctures by a used IV cannula needle through catheter needle tip protecting structure which provides an audible signal that the protecting structure is fully deployed.
Patent CA-2215765-C (CA)
Title: Rotors and methods of manufacturing such rotors
Inventor: CROWELL JAMES ROBERT
IPC: H02K17/16
Filed: 1997-09-18
Granted: 2004-11-30
Abstract: Rotors and methods of assembling such rotors for electric motors are described. In one embodiment, the rotor includes a substantially cylindrical core having substantially planar first and second end surfaces and a substantially cylindrical body portion. The rotor core body portion has first, second and third body sections. The first body section has an outer diameter less than an outer diameter of the second body section, and the third body section has an outer diameter approximately about equal to the outer diameter of the first body section. The first and third body sections sometimes are referred to as end sections or core extensions. A plurality of radially arranged rotor bar slots extend through the body portion, and a plurality of rotor bars are cast in the rotor bar slots. The rotor bar slots in the end sections have a first geometric cross-sectional shape and the rotor bar slots in the second body section have a second geometric cross-sectional shape. The rotor bar slot geometry in the end sections is selected to allow outward displacement of the rotor bars in the radial direction.
Patent CA-2216517-C (CA)
Title: Controller system for a dc power supply
Inventor: DUGUAY LOUIS
IPC: H02J7/02
Filed: 1997-09-25
Granted: 2003-03-18
Abstract: The DC power supply system has a separate controller connected to the AC power rectifiers via a control bus. Improved control features and modularity areachieved.
Patent CA-2216611-C (CA)
Title: Promoteur du gene de l'utrophine
Inventor: TINSLEY JONATHON MARK
IPC: C12R1/91
Filed: 1996-04-24
Granted: 2007-07-03
Abstract: L'invention porte sur des promoteurs de gènes humains et murins de l'utrophine. Ces promoteurs ou leurs fragments ou dérivés peuvent servir à commander la transcription de séquences hétérologues y compris les séquences de codage de gènes marqueurs. Des systèmes d'expression tels que des produits d'assemblage d'acides nucléiques contenant des cellules hôtes comprenant un promoteur fonctionnellement lié à une séquence hétérologue peuvent servir à filtrer des substances en fonction de leur capacité à moduler l'activité du promoteur de l'utrophine. De telles substances peuvent être produites et/ou utilisées pour préparer des compositions telles que des médicaments. L'accroissement contrôlé de l'expression de l'utrophine peut compenser les pertes de dystrophyne chez les patients atteints de dystrophie musculaire.
Patent CA-2223401-C (CA)
Inventor: CROWN CHARLES E
IPC: A47F3/00
Filed: 1996-06-07
Granted: 2001-09-11
Abstract: A ballast can (46) having at least one of an opening (56) which faces in a direction other than toward the rear of the refrigeration unit in which it is mounted and a ballast mounted on the can's cover (58). The ballast can (46) may include resilient members (60, 62) for attaching the can to a refrigeration unit frame (20).
Patent CA-2223854-C (CA)
Title: Procede de demarrage d'une cellule a diaphragme chlore-alcali
Inventor: MALONEY BERNARD A
IPC: C25B15/00
Filed: 1996-07-23
Granted: 2001-05-08
Abstract: Addition d'un matériau amphotère soluble dans l'anolyte, par exemple d'un composé d'aluminium, à l'anolyte d'une cellule à diaphragme chlore-alcali comportant un diaphragme synthétique au cours de la période de démarrage de la cellule, afin de réduire la perméabilité du diaphragme. Des matériaux inorganiques complémentaires modifiant la porosité, par exemple du chlorure de magnésium, et des argiles sont également ajoutés à l'anolyte au cours de la période de démarrage de la cellule.
Patent CA-2227711-C (CA)
Title: Thioctic acid metabolites and methods of use thereof
Inventor: BIEWENGA GERREKE
IPC: A61P1/16
Filed: 1998-01-22
Granted: 2006-10-24
Abstract: The present invention provides compounds with antioxidant activity effective in treating free radical mediated diseases of the formula:   wherein X is H or both Xs represent a direct bond between the two sulfur atoms; R1 is (=O) or -OH; and R2 is H, Na, K or (C1-C4 ) alkyl.
Patent CA-2230824-C (CA)
Inventor: BANNISTER ROBIN MARK
IPC: C07D491/048
Filed: 1996-09-23
Granted: 2009-09-15
Abstract: Cette invention concerne un procédé de préparation d'un composé représenté par la formule (4) ou (5), qui présente soit une forme racémique soit une forme à activité optique renforcée. Dans cette formule R<1>, R<2>, R<3> et R<4> sont sélectionnés indépendamment parmi l'hydrogène et des groupes alkyle, aryle, alkaryle, aralkyle et acyle. Ledit procédé consiste à mélanger à un extrait végétal un précurseur de cyclisation oxydante dudit composé.
Patent CA-2231716-C (CA)
Title: Centering device for femoral implant and apparatus for implementation thereof
Inventor: BURKE DENNIS W
IPC: A61F2/00
Filed: 1998-03-11
Granted: 2006-09-12
Abstract: A method and apparatus for centering the stem of a femoral hip prosthesis in the cavity formed in the medullary canal in the proximal end of the femur. The apparatus includes a sleeve or other like device which is mounted onto the neck of the femoral hip prosthesis and which contains at least two projections extending from a lower surface thereof which are adapted to seat in correspondingly formed slots disposed on the upper proximal surface of the femur bone. The slots are positioned such that when the projections reside therein, the stem is centered within the cavity. The slots and projections are elongated in a direction generally transverse to the direction of elongation of the stem, and in this direction of elongation each slot and associated projection is not parallel to the other slot and associated projection. The device of this invention may be used either with prosthesis having a collar, or with a collarless prosthesis.  The method of this invention includes the step of mounting a sleeve or other like device on the neck of a femoral hip prosthesis and inserting projections on the device into previously formed slots disposed on the upper proximal surface of the femur bone.
Patent CA-2237518-C (CA)
Inventor: LAGUETTE STEPHEN W
IPC: F16K15/16
Filed: 1996-11-05
Granted: 2005-08-16
Abstract: On peut laisser plus longtemps une prothèse vocale (10) dans la fistule d'un patient si l'on soutient le corps creux souple (14) de la prothèse à l'aide d'une cartouche rigide allongée (12) et que l'on fixe la soupape à languette (15) au moyen d'une patte (56) engagée dans une fente (54) de la collerette (44) de la cartouche (12). Une cavité agrandie (113) située dans la collerette (110) du corps (92) communique avec la fente (112) et reçoit la partie guide de la patte (56). Celle-ci (256) peut se terminer par une extrémité en forme de bulbe (261) reçue dans la cavité (263), ou bien la cavité (263) peut être remplie de colle de façon à fixer la soupape (215) sur la cartouche (212).
Patent CA-2241540-C (CA)
Inventor: TIMPERI JUKKA
IPC: D21C7/08
Filed: 1996-12-23
Granted: 2005-03-15
Abstract: On effectue le pompage de pulpe cellulosique de consistance moyenne à partir de colonnes d'alimentation (500) ou de cuves à pulpe de petites dimensions, dans lesquelles la pulpe est normalement déchargée à partir de tours de stockage, de tours de traitement, de piles laveuses, de filtres, de presses, d'épaississeurs ou analogues, et notamment le pompage de pulpes à haute température à partir de colonnes d'alimentation. Un orifice d'entrée de la pompe est fixé à une ouverture de déchargement (502) d'une colonne d'alimentation (500), le processus de pompage s'effectuant en mettant sous pression la pulpe cellulosique dans ladite colonne (500), en fermant cette colonne (500) pour la séparer de la pression atmosphérique, en maintenant dans celle-ci une pression supérieure à la pression atmosphérique, permettant ainsi à la pulpe cellulosique de circuler dans la pompe à travers l'orifice d'entrée de celle-ci, et en pompant ensuite la pulpe à l'aide de la pompe (30).
Patent CA-2245499-C (CA)
Title: A headrest mounting assembly for a chair and the like
Inventor: KIGEL RUDOLF
IPC: A47C7/38
Filed: 1998-08-24
Granted: 2003-11-18
Abstract: A headrest mounting assembly for mounting on the external surface of the rear surface of a backrest. The assembly includes a latching assembly removably mounted within a cover casing which has a channel defined by an upper slot opening and a lower slot opening formed in the upper and lower panels of the cover casing. A latching element pivotally mounted on a support and biassed by a torsion spring. The latching element has a narrow latching finger which is normally located in the locked position in the channel when the assembly is mounted on the backrest. The latching assembly bas a dome-shaped press button mounted on the latching element and it is operative to locate the latching finger in an opened position to allow the elongated bar of a headrest to be inserted through the channel. A plurality of transverse openings are formed in the elongated bar which are adapted to engage with the narrow finger of the latching element to lock the headrest at a selected height above the backrest.
Patent CA-2245506-C (CA)
Inventor: GROFMEYER DOROTHEA
IPC: A61K31/53
Filed: 1997-01-23
Granted: 2007-07-10
Abstract: The present invention relates to triazine granules of the following composition a) active compound 0.5 to 10% (weight) b) starch 10 to 40% (weight) c) lactose 30 to 60% (weight) d) polyvinylpyrrolidone 5 to 35% (weight) having a particle size distribution of between 40 to 400 .mu. and an upper limit of the particle size at 2 000 .mu..
Patent CA-2246096-C (CA)
Inventor: MCCLURE RICHARD R
IPC: E04D13/03
Filed: 1998-08-28
Granted: 2005-07-26
Abstract: A rectangular curb unit is installed on a sloping standing seam metal roof at an angle to the dip direction, so that water does not accumulate on the upslope side of the curb unit. The curb unit has four side walls, and inserts shaped to conform to the seam geometry are welded to the walls at the seam locations, typically at opposite corners.
Patent CA-2246178-C (CA)
Inventor: SAXON GREGORY J
IPC: B08B9/04
Filed: 1998-09-01
Granted: 2003-11-04
Abstract: A composite tube cleaner has a shaft, nose portion and tail portion, and a plurality of metallic scraper devices spaced along the shaft.   The scraper devices are U-shaped and have at least two leg portions which terminate as scraping sections.  A plastic sheath is secured to and encloses the scraping sections and at least a portion of the leg portions,  the sheath preferably having at least one inclined surface along the leg portion which extends outwardly to the scraping section.
Patent CA-2252570-C (CA)
Title: Apparatus for drying cylindrical and/or parallelepiped bales of moist forage
Inventor: MUZZARELLI GABRIELE
IPC: F26B9/06
Filed: 1997-04-21
Granted: 2006-01-03
Abstract: The apparatus (1; 1A', 1B', 1C) for drying cylindrical (3) and/or parallelepiped bales of moist forage comprises an assemblage (2) of horizontally extending balanced isobaric ventilation chambers (2a, 2b, 2c) in overlying relationship. The lower ventilation chamber (2a) presents a plurality of blowing apertures (4; 11) on its upper face and is able to withstand the weight of the bales (3) positioned directly on it in correspondence with the relative blowing apertures (4; 11 ). The upper ventilation chamber (2b) presents a corresponding plurality of blowing apertures (4; 11) on its lower face, whereas the intermediate ventilation chambers (2c) present a corresponding plurality of blowing apertures (4; 11) both on their upper face and on their lower face and are able to withstand the weight of the bales (3) positioned directly on them in correspondence with the relative upper blowing apertures (4; 11).  Means (6) are provided for mutually moving the ventilation chambers (2a, 2b, 2c) vertically in the two directions.
Patent CA-2254156-C (CA)
Title: Dispositif de mesure de la poussee axiale sur un arbre tournant
Inventor: ROGER CHRISTIAN MARIE MICHEL
IPC: G01L5/12
Filed: 1998-11-13
Granted: 2004-05-04
Abstract: Afin de mesurer la poussée axiale (4) exercée sur un arbre tournant (1), l'invention propose de disposer sur cet arbre (1) une structure sandwich composée d'une rondelle élastique (15) flanquée de deux flasques (14,16), ladite rondelle (15) étant soumise à ladite poussée axiale (4), lesdits flasques (14, 16) coopérant avec deux sondes de mesure de déplacement (17, 18) solidaires de la structure fixe (3) de la machine. Application non exclusive à la mesure de la poussée des rotors de turbomachine.
Patent CA-2258470-C (CA)
Inventor: SIMPSON HARVEY
IPC: F16B45/02
Filed: 1999-01-13
Granted: 2003-10-07
Abstract: A self locking snap hook that includes a central shank having an arch shaped hook member that defines a gateway opening at one end, a gate keeper enclosing the gateway opening, a locking lever to prevent the opening of the gate keeper, and a second locking mechanism having an engaged and a disengaged position such that when it is engaged it prevents the locking lever from being disengaged. Movement of the second locking mechanism between its engaged and disengaged positions requires the application of force and resulting movement in a direction other than that required to move the locking lever from its engaged to its disengaged position.
Patent CA-2259627-C (CA)
Title: Procede et dispositif de destruction d'objets
Inventor: FRISTROM OLA
IPC: G08B15/02
Filed: 1997-07-06
Granted: 2005-09-27
Abstract: L'invention concerne un procédé et un dispositif (1) de destruction d'objets (100) placés dans un conteneur de sécurité protégé par système d'alarme. On utilise un agent destructeur (50) qui se répand sur l'objet ou les objets (100) lorsque l'alarme est déclenchée, de façon à marquer et/ou détruire l'objet ou les objets. On utilise également un dispositif destructeur (1) contenant une substance explosive (60) qui agit au moins partiellement sur l'objet ou les objets (100) lorsque l'alarme est déclenchée. Le dispositif (1) comprend un canal (2) dont l'ouverture fait face à l'objet ou aux objets (100). L'agent destructeur (50) est encapsulé dans le canal (2) et la substance explosive (60) est disposée à proximité du canal. Le canal (2) a une section transversale en U et comprend des parois d'extrémité (6, 7).
Patent CA-2259848-C (CA)
Title: Glass fiber cord for reinforcing a rubber
Inventor: AKIYAMA MITSUHARU
IPC: D06M13/477
Filed: 1999-01-21
Granted: 2004-08-31
Abstract: A glass fiber cord for reinforcing a rubber is disclosed, which is inexpensive and suffers no decrease in strength even when flexing stresses are repeatedly imposed thereon under high load at high temperatures, and which has sufficient heat and water resistance.      High-strength glass filaments having a diameter of 8-10 µm are bound to obtain a strand, on which a coating layer comprising a resorcinol/formaldehyde condensate and a rubber latex is formed. Two or more such coated strands are twisted and then optionally coated with a second coating layer to obtain a cord for rubbers which has a diameter of 0.8-1.1 mm.
Patent CA-2260996-C (CA)
Title: Procede de moulage en continu de produits de metallurgie minces et appareil de fabrication desdits produits
Inventor: CAPOTOSTI ROMEO
IPC: B22D11/06
Filed: 1997-07-09
Granted: 2004-04-06
Abstract: La présente invention concerne un procédé de moulage en continu de produits métalliques minces. Le procédé comprend les opérations de préchauffage d'une paire de plaques réfractaires (7) pour le confinement latéral d'un bain de métal en fusion. Le procédé comporte une paire de rouleaux contrarotatifs (1, 2) et consiste à abouter ladite paire de plaques (7) avec chaque surface latérale des extrémités de ladite paire de rouleaux (1, 2). Il est caractérisé en ce qu'il comprend les opérations d'application d'une déformation contrôlée élastique ou élastique/plastique à ladite paire de plaques (7) au niveau de l'arc de contact entre la surface des plaques (7) et la portion périphérique des extrémités desdits rouleaux (1, 2). On contrôle ladite déformation élastique et/ou élastique/plastique de ladite paire de plaques (7) durant tout le processus de moulage, afin de minimiser la surface de portance des plaques (7) et des extrémités des rouleaux (1, 2) et pour garantir le maintien d'une distance prédéterminée entre lesdits rouleaux (1, 2) et lesdites plaques (7) à une valeur inférieure à une certaine valeur prédéterminée et à minimiser l'apparition de fuites de métal en fusion entre lesdites plaques (7) et lesdites parties d'extrémité desdits rouleaux (1, 2).
Patent CA-2263931-C (CA)
Title: Refrigerant compressor
Inventor: POLLRICH VOLKER
IPC: F04B39/06
Filed: 1998-06-19
Granted: 2007-03-13
Abstract: In order to improve a refrigerant compressor comprising a motor unit which has a motor and a cooling duct for the motor originating from an outer cooling duct connection as well as a compressor unit which has a compressor stage with a compressor stage inlet and a compressor stage outlet and a suction duct originating from an outer suction connection, this duct, like the cooling duct, being guided to the compressor stage inlet, such that the cooling can be realized variably with as few constructional alterations as possible it is suggested that an outer connection unit be provided, on which the cooling duct connection and the suction connection are arranged, that the connection unit have a receiving means and an adjustment part which can be inserted into the receiving means in at least two different positions and that as a result of the various positions of the adjustment part the amounts supplied to the cooling duct connection and the suction connection of the total quantity of the suction gas supplied via an outer suction gas connection be variably adjustable.
Patent CA-2268227-C (CA)
Inventor: CLOUGHERTY KENAN J
IPC: B65D3/22
Filed: 1999-04-01
Granted: 2003-07-29
Abstract: A composite container is provided for vacuum packaging of products which is constructed, as follows. A hollow body portion defines a desired shape for the container and has an inside surface. A liner layer is in superimposed position within the body portion and covers the inside surface for receiving the product inside the liner layer and the body portion of the container. An elastic material is positioned between the body portion and the liner layer for movably attaching the liner layer to the body portion in the superimposed position while allowing the liner layer to constrict and move away from the body portion by stretching of the elastic material when a vacuum is formed on the product packaged in the container and then allowing the liner layer to move back into the superimposed position within the body portion of the container by retraction of the elastic material when the container is opened and the vacuum on the product is removed.
Patent CA-2270268-C (CA)
Title: Orienting tool and method
Inventor: BEGG STEPHEN M
IPC: E21B47/09
Filed: 1999-04-27
Granted: 2007-10-30
Abstract: An orienting tool for positioning in a well bore casing having a profile positioned therealong and a method for same. The tool having a body with at least one member mounted thereon and biased outwardly at a selected pressure. The selected pressure being great enough to permit determination of when the at least one member has moved past the profile but not being too great as to prevent the at least one member from moving past the profile using an applied force.