baber/WOPTO huggingface dataset:
Patent CA-2219133-C (CA)
Title: Procede et appareil de separation electrostatique
Inventor: WHITLOCK DAVID R
IPC: B03C7/02
Filed: 1996-04-25
Granted: 2007-01-16
Abstract: La présente invention concerne un séparateur à contre-courant du type à bande, destiné à séparer les éléments d'un mélange de particules, y compris des particules conductrices. Il comprend un ensemble à gradient de tension présentant plusieurs éléments conducteurs intercalés entre plusieurs éléments diélectriques. Les éléments conducteurs sont reliés à différents noeuds d'un circuit diviseur de tension pour diviser une tension existant entre une électrode à potentiel élevé appartenant au séparateur électrostatique et un potentiel de référence. La présence de plusieurs éléments conducteurs et de plusieurs éléments diélectriques, combinés au circuit diviseur de tension, limite la différence de potentiel entre deux éléments conducteurs voisins quelconques à un maximum afin d'empêcher les décharges disruptives dues à la présence de particules conductrices dans le séparateur. Dans un mode de réalisation de ce dernier, l'ensemble à gradient de tension est en matière plastique extrudée et il présente des éléments conducteurs et d'autres non conducteurs, et des pièces en alumine sont placées entre les éléments conducteurs pour donner une surface de gradient de tension durable.
Patent CA-2220178-C (CA)
Title: Dry preparations containing microbially produced oil
Inventor: TRITSCH JEAN-CLAUDE
IPC: A23L33/12
Filed: 1997-11-04
Granted: 2001-10-30
Abstract: The present invention is concerned with novel, stable cold water-dispersible pulverous preparations of a microbially produced oil, which is rich in arachidonic acid, said preparations containing fish gelatine as the matrix component and tocopherol, an ascorbic acid ester or a mixture of an ascorbic acid ester and tocopherol as the antioxidant.
Patent CA-2222387-C (CA)
Inventor: LEIB WILLIAM J
IPC: F16B33/00
Filed: 1997-11-27
Granted: 2001-09-11
Abstract: The fastener, which is typically made of thermoformed or similar plastic, includes a shank portion at least two parallel fingers which further include a proximal end and a distal end.          The proximal end of the fingers is integral with a base portion and the distal  end of the  fingers  is  integral with bridge elements which attach to a wedge element.   A driving pin is attached to the base portion and is aligned with a gap formed between the at least two parallel fingers.  The parallel fingers further include lateral serrated portions and radially oriented stabilizing fins.   Upon impact to the driving pin when the fastener is placed into a blind threaded aperture,  the wedge portion forces apart the distal ends of the parallel fingers, while the driving pin forces apart the proximal ends of the parallel fingers thereby driving the serrated portions of the fingers against the threads of the blind threaded aperture.
Patent CA-2223022-C (CA)
Title: Dispositif capteur d'empreintes
Inventor: CALMEL MARYLINE
IPC: A61B5/117
Filed: 1997-03-26
Granted: 2005-05-31
Abstract: Le dispositif capteur d'empreintes digitales comprend un support (10) transparent, plat et mince ayant une face externe destinée à recevoir l'extrémité d'un doigt et portant sur une face interne une matrice à  deux dimensions d'éléments photosensibles séparés par des intervalles en bande et un substrat (14) portant, sur une face interne, des sources de lumière destinées à diriger, à travers les intervalles en bande, un faisceau de lumière traversant le support, sensiblement orthogonal à ladite face externe. Les éléments photosensibles sont protégés contre la lumière provenant des sources de façon à ne fournir un signal de sortie qu'en réponse à la lumière rétro-diffusée vers la face externe du support.
Patent CA-2224339-C (CA)
Title: Printing head system for use in an electrocoagulation printing apparatus
Inventor: CASTEGNIER ADRIEN
IPC: B41C1/10
Filed: 1997-12-10
Granted: 2003-02-11
Abstract: The invention relates to a printing head system for an electrocoagulation printing apparatus. The printing head system of the invention comprises an electrode carrier, a linear array of electrolytically inert electrodes electrically insulated from one another and mounted to the electrode carrier, the array of electrodes being arranged into a plurality of groups each having a predetermined number of closely spaced electrodes, and a driver circuit for addressing the electrodes of selected groups. The driver circuit is responsive to a graphical data input signal to cause simultaneous passage of electric current through at least a major portion of the electrodes in a selected one of the groups, the major portion of electrodes including electrodes that are contiguous with one another.  Such a printing head system is capable of improving the quality of the image reproduced by electrocoagulation of an electrolytically coagulable colloid.
Patent CA-2235658-C (CA)
Inventor: FOO ONN FAH
IPC: H05B41/295
Filed: 1998-04-23
Granted: 2004-08-10
Abstract: An electronic ballast circuit for fluorescent lamps, said circuit comprises an anti-interfering circuit, a rectifying circuit, a filtering circuit, a frequency-converting circuit and a resonant circuit connected sequentially; a main resonant capacitor C4 is connected between the end of the the fluorescent lamp connected with the resonant inductor L1 in the resonant circuit and the negative end of the filtering circuit, so that resonant inductor L1 and main resonant capacitor C4 constitute a main resonant circuit; the Q factor of the main resonant circuit is not affected by the resistance of the filaments at both ends of the fluorescent lamp, so that the voltage applied across borh ends of the lamp can be raised; and a preheating circuit is provided between both two ends of the main resonant capacitor, so that the filaments of the lamp can be preheated before the lamp is started.
Patent CA-2242078-C (CA)
Inventor: PEEVLER GARY M
IPC: B22D35/04
Filed: 1998-08-07
Granted: 2002-03-05
Abstract: In a bottom-pouring casting apparatus having a holding tank, a ladle in the tank and a tank cover, which seals the ladle in the tank, a pouring tube and holding casting are disclosed for mounting on and through the tank cover to provide the pouring tube in the molten metal of the ladle, which tube and holding casting are have similarly tapered outer and inner walls for mating at assembly thereby utilizing gravity and mechanical pressure on the tube holding assembly to more tightly secure the tube agains the holding casting to avoid driving the tube from the holding casting and rendering it inoperable.
Patent CA-2244918-C (CA)
Inventor: MCGRATH DAMIAN
IPC: H04L12/24
Filed: 1997-02-14
Granted: 2006-05-09
Abstract: Cette invention concerne un procédé (1) permettant de produire une unité d'interconnexion et de gestion (MIU) (10), lequel procédé consiste à créer des modèles (4, 5) des interfaces de gestion devant être mises en interconnexion. Chaque modèle comprend des objets qui représentent les ressources gérées. Une connaissance du domaine (7), une interface (8) et un processeur (6) permettent de créer des mappages entre les parties équivalentes des modèles. Les modèles et les mappages vont former une fonction de conversion d'informations (ICF) (11) qui va entrer en communication avec deux fonctions de communication de messages (MCF) (12) par l'intermédiaire d'un protocole interne (i1, i2). Ces fonctions de communication de messages (12) vont effectuer une conversion du format et entrer en communication avec les interfaces interconnectées.
Patent CA-2249863-C (CA)
Inventor: CHUAH MOOI CHOO
IPC: H04L29/06
Filed: 1998-10-08
Granted: 2003-07-01
Abstract: A wireless data network includes a wireless packet switched data network for end users that divides mobility management into local, micro, macro and global connection handover categories and minimizes handoff updates according to the handover category. The network integrates MAC handoff messages with network handoff messages. The network separately directs registration functions to a registration server and direct routing functions to inter-working function units. The network provides an intermediate XTunnel channel between a wireless hub (also called access hub AH) and an inter-working function unit (IWF unit) in a foreign network, and it provides an IXTunnel channel between an inter-working function unit in a foreign network and an inter-working function unit in a home network. The network enhances the layer two tunneling protocol (L2TP) to support a mobile end system, and it performs network layer registration before the start of a PPP communication session.
Patent CA-2253308-C (CA)
Title: Coach body of railway vehicle
Inventor: MUHLHAHN DIETER
IPC: B62D31/02
Filed: 1997-05-03
Granted: 2002-07-23
Abstract: The coach body of a railway vehicle consists essentially of horizontal and vertical panels (1, 2) with the horizontal panels (1) which form a floor as well as a roof and the vertical panels, in particular the side panels providing apertures (2a) which allow the installation of at least one window and one access door. The horizontal and vertical panels (1, 2) are composed by fibre reinforced split modules (3) with the joint running at right angle to the longitudinal axis. Two of these modules (3) which are complementary and juxtaposed are each time connected by a load-transmitting joint via their horizontal panels (1) in the centre of the vehicle (4) thus forming a longitudinal section of the coach body. The length of the coach body is made up by the load-transmitting assembly of a number of the above mentioned longitudinal sections by their abutment points (5) which extend at right angle to the longitudinal axis of the vehicle.
Patent CA-2260239-C (CA)
Inventor: WORDSWORTH GARY BRYAN
IPC: H04N7/01
Filed: 1997-07-02
Granted: 2003-01-28
Abstract: An apparatus is disclosed for use in a method for scanning an image on a fil m and generating a video signal therefrom, the apparatus comprising a signal processor (10) receiving a plurality of input raster lines representing a fi lm image, and control means (11) having controls (14) operating on said signal processor whereby the number of said input raster lines used by the signal processor in the active raster to generate said output signal is variable. A  signal representing a sequentially scanned image is supplied to filter (12) which performs an anti-aliasing and a decimation process. The amount of oversampling can be varied depending on various factors, such as film speed,  and degree of anti-aliasing and aperture correction so as to optimise performance and, in CRT-based systems, so as to maintain the size of the raster on the face of the CRT above a predetermined minimum.
Patent CA-2266193-C (CA)
Title: Extrudable aluminum alloys
Inventor: RAMANAN THIAGARAJAN
IPC: C22F1/05
Filed: 1999-03-18
Granted: 2005-02-15
Abstract: A novel extrudable aluminum based alloy is described consisting essentially of 0.60-0.84% magnesium, 0.45-0.58% silicon, 0.15-0.40% copper, 0.04-0.35% chromium, or 0.20-0.80% manganese, less than 0.25% iron, where Si>=(Mg/1.73+(Mn+Cr+Fe)/3-0.04), and the balance essentially aluminum. In the alloy of the present invention, the magnesium content has been reduced to the minimum possible for mechanical properties. In this way, the magnesium silicide content of the alloy has been reduced, providing a very beneficial effect on extrudability.
Patent CA-2269771-C (CA)
Title: Novel bacterial strains and use thereof in fermentation processes for 2-keto-l-gulonic acid production
Inventor: LIAW HUNGMING J
IPC: C12R1/01
Filed: 1997-10-23
Granted: 2003-01-07
Abstract: The present invention relates to a process for the production of 2-keto-L-gulonic acid by fermentative conversion of L-sorbose and/or D-sorbitol. The present invention further relates to novel bacterial strains useful in this process.
Patent CA-2270012-C (CA)
Title: Floating dock section
Inventor: ZEILINGER BRIAN K
IPC: B63C13/00
Filed: 1999-04-22
Granted: 2005-10-25
Abstract: A dock, pier or floating deck wherein the sections comprising the dock include a wheel support and a wheel mounted thereon to enable easy movement of the dock section over the surface to thereby facilitate placement and removable of the dock section in a body of water.
Patent CA-2271004-C (CA)
Title: Procede de preparation d'isomeres de formoterol optiquement purs
Inventor: WALD STEPHEN A
IPC: C07C217/60
Filed: 1997-11-07
Granted: 2007-05-01
Abstract: L'invention concerne une procédé pour préparer des isomères de formotérol optiquement purs, en partiucler les isomères (R,R) et (S,S), par réaction d'un oxyde 4-benzyloxy-3-formamidostyrène optiquement pur avec une 4-méthoxy- alpha -méthyl-N-(phénylméthyl)benzèneéthanamine optiquement pure, puis par débenzylation. L'invention concerne également des intermédiaires utiles audit procédé, comme peut l'être le nouveau sel de L-tartrate de R,R-formotérol.
Patent CA-2273793-C (CA)
Title: Angioplasty catheter
Inventor: TEITELBAUM GEORGE P
IPC: A61M25/10
Filed: 1997-12-16
Granted: 2000-05-23
Abstract: This invention is a device for crossing a stenotic intravascular lesion for occluding blood flow downstream from the intravascular lesion, and for use as an exchange guide wire, and a method of using the device; the device comprising a balloon catheter (10) having a catheter body with an inflation conduit, an inflation balloon (20), an adapter (18) for inflating the inflation balloon, and an extension member (22). The device is configured such that the inflation balloon is maintained in an inflated state by connecting the extension member (22) to the proximal end of the inflation conduit when the adapter is removed.
Patent CA-2276488-C (CA)
Title: Aminoepoxides from aminoaldehydes and in-situ formed halomethyl organometallic reagent
Inventor: NG JOHN S
IPC: C07C215/28
Filed: 1997-12-19
Granted: 2006-07-18
Abstract: A method of preparing an aminoepoxide wherein a protected aminoaldehyde is reacted with a halomethyl organometallic reagent in an appropriate solvent at a temperature above -80 °C, wherein said halomethyl organometallic reagent is formed by reaction between an organometallic reagent and a dihalomethane, the improvement comprising flowing said protected aminoaldehyde into a mixing zone maintained at a temperature below 0 °C, also flowing said halomethyl organometallic reagent in said mixing zone for contacting in said mixing zone with said protected aminoaldehyde and also withdrawing from said mixing zone reaction products of said protected aminoaldehyde and said halomethyl organometallic reagent. The obtained aminoepoxides are useful, through amine opening of the epoxide ring, as intermediates in the preparation of pharmaceuticals, e.g. HIV  protease inhibitors.
Patent CA-2278782-C (CA)
Inventor: NGUYEN THAI D
IPC: C12Q1/68
Filed: 1998-01-09
Granted: 2004-05-25
Abstract: On peut utiliser l'acide nucléique situé en amont de la séquence codant la protéine TIGR afin de diagnostiquer le glaucome. On peut également utiliser des polymorphismes, des substitutions de bases, des additions de bases situées au moyen des exons amont et à l'intérieur des exons TIGR afin de diagnostiquer le glaucome. De plus, on peut également utiliser des polymorphismes, des substitutions de bases, des additions de bases situées au moyen des exons amont et à l'intérieur des exons TIGR afin de pronostiquer le glaucome.
Patent CA-2286088-C (CA)
Title: Method for making a film with pattern preventing reproduction by optical scanning for the protection of documents
Inventor: TRANTOUL FRANCOIS
IPC: B41M3/14
Filed: 1998-04-20
Granted: 2008-07-22
Abstract: The invention concerns a film (7a) produced by printing on a top sheet (1) with non-glossy surface (2), a first glossy varnish imprint (3) adhering on said surface (2). A second continuous imprint produced on the first, adheres neither on the top sheet (1) nor on the varnish (3), and the film (7a) is completed. A glossy imprint (9) is thus provided in the film (7a) external surface (8) which is then applied on a document (12) to protect it from being reproduced by optical scanning.
Patent CA-2286559-C (CA)
Title: Capillary cosmetic compositions based on cationic polymers and non-ionic associative polymers
Inventor: DOUIN VERONIQUE
IPC: A61K8/87
Filed: 1998-12-23
Granted: 2006-04-04
Abstract: The invention concerns a capillary cosmetic composition comprising, in a cosmetically acceptable support: (A) at least a cationic polymer containing at least an acrylamide or acrylamide derivative unit and (B) at least a non-ionic associative polymer containing at least a fatty chain.
Patent CA-2291752-C (CA)
Inventor: KALSNES HELGE
IPC: F24F11/00
Filed: 1998-05-29
Granted: 2008-01-15
Abstract: Method to operate a combustion device in a house or similar building, with fossil fuel furnaces, such as wood or oil furnaces. Outdoor air is supplied to a heat exchanger that is connected to the smoke tube of the furnace, in such an amount that an interior excess pressure is created, as excess air is led out of the interior of the building through one or more exhaust openings, especially exhaust devices, which are located at low places in the building at its outer side. This offers better combustion efficiency, better energy-utilization and a more uniform temperature in the building. A device for operating the method, comprises a fan (23) which takes in air from an inlet (19) near the outer walls of the building, through a tube (24) leading to the furnace, with a heat exchanger (33, 34) enclosing some of the smoke tube (18) of the furnace (17). The fan (23) is dimensioned and operated to create an overpressure in the building. There exists at least one overflow valve (25) placed in the lower parts of the building, near its outer wall, which opens upon a low inner pressure.
Patent CA-2292873-C (CA)
Title: Adaptateur filete pour chalumeau amovible et methode d'utilisation
Inventor: FORTIER BERNARD
IPC: A01G23/14
Filed: 1999-12-20
Granted: 2002-04-30
Abstract: A spout system for collecting sap from a tree and directing the sap to a sap collecting line. The spout system comprises a spout having a spout portion at a first end thereof adapted to be received in a borehole in a tree trunk for collecting sap therefrom. An outlet at a second end thereof is connected to an adapter. The spout defines a passageway extending between the spout portion and the outlet for sap circulation therethrough. The adapter has at a first end thereof an inlet for being matingly engaged with the spout and in fluid communication with the passageway, a fitting at a second end thereof, the fitting being adapted for being connected to the sap collecting line. The adapter is detachable from the spout and sealable so as to remain connected to the sap collecting line when the spout is disconnected from the sap collecting line.
Patent CA-2297276-C (CA)
Inventor: PITOT CHRISTIAN
IPC: H04L29/06
Filed: 1998-07-21
Granted: 2008-03-25
Abstract: The invention concerns a method for receiving and pre-processing digital messages, to be used in an operation processor (2) consisting in: associating each message identification label capable of being received in a descriptor of pre-processing operations to be applied to the message, the label of some messages being further associated with a sequence of descriptors of executable instructions, storing the descriptor in a memory (3, 4) at an address computed by means of the associated message label, and on receiving a message, reading the received message label, determining the descriptor address by means of the label, executing the instruction sequence associated with the message label if the descriptor is of the instruction type, the latter defining the first instruction of the sequence, and executing on the message the processing operations indicated by the descriptor if the latter is of the pre-processing type.
Patent CA-2298349-C (CA)
Title: Antiallergic composition and antipruritic composition
Inventor: MATSUMOTO MOTONOBU
IPC: A23L29/00
Filed: 2000-02-14
Granted: 2008-11-18
Abstract: An allergy preventive or itching preventive food containing persimmon leaves or a persimmon leaf extract, a persimmon leaf extract-containing cosmetic composition having the action of improving allergic rough skin conditions or alleviating itching, an allergy or itching preventive or therapeutic composition.
Patent CA-2299076-C (CA)
Title: Mono-diameter wellbore casing
Inventor: COOK ROBERT LANCE
IPC: E21B17/00
Filed: 2000-02-22
Granted: 2010-07-13
Abstract: A mono-diameter wellbore casing is formed by radially expanding a first tubular liner off of a mandrel into contact with a second tubular liner. The first and second tubular liners are positioned within the wellbore in an overlapping relationship. The overlapping portions of the tubular liners include thin wall portions with compressible annular members that are expanded into contact with each other.
Patent CA-2301116-C (CA)
Inventor: GARNHAM CHERYL JANE
IPC: C03B37/012
Filed: 1998-08-19
Granted: 2006-12-05
Abstract: Selon cette invention, les fibres optiques sont fabriquées au moyen d'une technique de grainage direct qui permet d'aplatir le tube de revêtement externe sur la tige interne faisant office d'âme directement pendant la phase d'étirage du procédé de fabrication de fibres optiques. Pendant la fabrication, on réalise une préforme pourvue d'un espace ou d'une cavité annulaire fermée. On réalise la préforme en alignant d'abord une tige dans le tube à gaine en utilisant un dispositif de centrage qui crée également un joint hermétique. Par ailleurs, on peut maintenir un vide d'air dans l'espace ou la cavité annulaire de cet ensemble. On applique ensuite une source thermique pour aplatir les extrémités du tube sur les extrémités correspondantes de la tige, la vitesse latérale du déplacement de la source thermique d'une extrémité à l'autre étant réglée de façon à éviter toute fissuration dans la préforme finale. On monte la préforme obtenue sur une tour d'étirement où la fibre est étirée tout en aplatissant la partie restante du tube sur la tige. Cette invention concerne également un dispositif d'alignement d'une tige dans un tube, comme celui utilisé dans le procédé de fabrication de la préforme, comprenant un corps fileté, des anneaux, des joints toriques et des anneaux fendus.
Patent CA-2309172-C (CA)
Title: Aminobiguanides to disinfect contact lenses and preserve pharmaceutical compositions
Inventor: SCHLITZER RONALD L
IPC: A61L2/00
Filed: 1998-12-18
Granted: 2006-07-11
Abstract: Aminobiguanides and the use of same as antimicrobial agents in pharmaceutical compositions are disclosed. The aminobiguanides are useful in the preservation of pharmaceutical compositions, particularly ophthalmic pharmaceutical compositions and compositions for treating contact lenses. The compounds are especially useful for disinfecting contact lenses.
Patent CA-2310785-C (CA)
Inventor: GERRAND ALAN ROY
IPC: A43B23/00
Filed: 1998-11-23
Granted: 2008-03-11
Abstract: Improvements in footwear for sporting purposes requiring the kicking of a ball on or adjacent to an instep of the footwear, there being provided at least one insert (24) for or addition to the footwear which is attachable to the footwear on or adjacent to the instep such that a concave kicking surfac e (28) is provided, the radius of curvature of the kicking surface (28) being substantially the same as or slightly greater than the radius of the ball, t he at least one insert (24) being of a maximum height at the front of the inste p at least as great as the maximum height at the rear of the instep.