baber/WOPTO huggingface dataset:
Patent CA-2260210-A1 (CA)
Title: Circuit for signal transmitters with leds
Inventor: R SSNER HOLGER
IPC: H05B45/59
Filed: 1997-07-08
Abstract: This invention concerns a circuit for signal transmitters in traffic control systems with LEDs (4 to 15) for emitting colored light. Said circuit is supplied with a.c. voltage and has two groups of LEDs (4 to 9 and 10 to 15), which are connected antiparallel to one another. This creates a simple and easy to monitor inherently safe system for signal transmission.
Patent CA-2262581-A1 (CA)
Title: Electrohydraulic pressure wave projectors
Inventor: MOENY WILLIAM M
IPC: H04R23/00
Filed: 1997-08-05
Abstract: A projector (10) for creating electrohydraulic acoustic and pressure waves conprising an energy source (21) (such as a capacitor) within approximately one meter of an electrode array (23). Larger projectors may be formed by arraying the projectors, and still larger projectors by arraying them.
Patent CA-2263816-A1 (CA)
Title: Method of reducing the severity of host vs. graft reaction by down-regulating hsp60 autoimmunity
Inventor: BIRK OHAD
IPC: A61K38/17
Filed: 1997-09-02
Abstract: A method for reducing the severity of host vs. graft reaction (HVGR) by the transplant recipient of donor organ or tissue by the transplant recipient and is based on the discovery that hsp60 autoimmunity can function as an accelerator of foreign immunity and the down-regulation of hsp60 autoimmunity suppresses or prevents the graft rejection reaction. Administration of any composition which causes the down-regulation of hsp60 autoimmunity, such as hsp60 or peptide p277 in a tolerogenic carrier or a biologically active carrier capable of mediating a TH1~TH2 shift, will thus reduce the severity of HVGR.
Patent CA-2265554-A1 (CA)
Title: 3' genomic promoter region and polymerase gene mutations responsible for attenuation in viruses of the order designated mononegavirales
Inventor: TATEM JOANNE M
IPC: C12N7/04
Filed: 1997-09-19
Abstract: Isolated, recombinantly-generated, attenuated, nonsegmented, negative-sense, single stranded RNA viruses of the Order Mononegavirales having at least one attenuating mutation in the 3' genomic promoter region and having at least one attenuating mutation in the RNA polymerase gene are described. Vaccines are formulated comprising such viruses and a physiologically acceptable carrier.  The vaccines are used for immunizing an individual to induce protection against a nonsegmented, negative-sense, single stranded RNA virus of the Order Mononegavirales.
Patent CA-2267008-A1 (CA)
Title: Cleaner with temperature control
Inventor: LARSON ARDEN
IPC: B05B9/00
Filed: 1999-03-25
Abstract: A cleaner with temperature control is provided including a fluid tank for containing a supply of water and at least one pump for suctioning water from the fluid tank. Also included is a heating element in communication with the pump for heating water received therefrom. A heating element control mechanism is provided for controlling the temperature of the water exiting the heating element such that it transitions smoothly to a constant predetermined temperature.
Patent CA-2269794-A1 (CA)
Title: Method for forming durable images on substrates
Inventor: HILL GEORGE ROLAND
IPC: B41M3/00
Filed: 1997-10-24
Abstract: A method of imaging a substrate is disclosed, the method consisting of applying a first layer to the substrate to form a "print pattern" and a second step of presenting an "addressed design" to the substrate both within and outside the area of the print pattern. In the method of the invention, within the print pattern the addressed design is formed into a "durable image material" forming at least a part of the design layer and outside the print pattern, the addressed design does not form a durable image material.
Patent CA-2272600-A1 (CA)
Inventor: BRANDON DALBERT L
IPC: H04N21/234
Filed: 1997-11-14
Abstract: Cette invention concerne un système et un procédé qui permettent de créer et de traiter un débit unifié de données comprenant des données temporelles ainsi que des données non temporelles, ceci de préférence sous un format comprimé. Un programmateur (602) va prendre des données temporelles (comme des données de son) et des données non temporelles (comme des données d'images), puis les intercaler de manière à former un débit de données unifié (610). Un processeur va décomprimer les données d'images comprimées, et produire une image de sortie tant à partir des données d'images décomprimées que des données d'images non comprimées. Le processeur va en outre lire les données temporelles (604) tout en décomprimant les données temporelles comprimées. Les données temporelles (604) peuvent se présenter sous quelque format que ce soit, y compris des données vocales ou des fichiers MIDI, ainsi que sous forme de données d'images telles que des images vidéo ou des images fixes. Une série de diapositives informatiques peut être obtenue en programmant et en lisant les données vidéo et audio (y compris MIDI et vocales), lesdites données vidéo et audio étant intercalées en un débit de données unifié (610).
Patent CA-2273001-A1 (CA)
Title: Oxidising composition and uses for treating keratin fibres
Inventor: COTTERET JEAN
IPC: A61Q5/08
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 a non-ionic amphiphilic polymer comprising at least a fatty chain and at least a hydrophilic structural unit; and the methods for treating keratin fibres in particular methods for dyeing, permanently setting and bleaching hair using said composition.
Patent CA-2273152-A1 (CA)
Inventor: KERN ROBERT D
IPC: F02B75/00
Filed: 1997-12-02
Abstract: In an engine-generator set (10), the generator (13) has a first shaft (25) driving a generator armature (27) and also has a second shaft (19) in spaced relationship to the first shaft (25). The second shaft (19) is coupled to the engine (11) and there is a respective gear (21 or 23) on each of the shafts (19 25) which provides a "step-down" gear reduction for powering the generator (13) at, e.g., 1800 rpm, where the engine speed is greater than 1800 rpm. Preferably, the engine (11) is coupled to the generator armature shaft (25) through a torsional coupling (17) for isolating engine vibration from the generator (13).
Patent CA-2273641-A1 (CA)
Title: Polarisation-switched sagnac interferometer and applications
Inventor: MACDONALD ROBERT I
IPC: G02F1/09
Filed: 1999-06-04
Abstract: This invention discloses a Sagnac fibre interferometer with a non-reciprocal rotating device to achieve switching and multiplexing of optical signals. The non-reciprocal rotator is preferably a Faraday rotator which is disclosed within the Sagnac fibre loop.
Patent CA-2278299-A1 (CA)
Title: Channel estimating apparatus, and cdma receiver and cdma transceiver each having the apparatus
Inventor: ADACHI FUMIYUKI
IPC: H04B1/707
Filed: 1998-11-20
Abstract: A channel estimating apparatus for performing channel estimation with high precision, and a CDMA receiver and a CDMA transceiver each having the apparatus. A channel estimation value of a data symbol is acquired from a series of pilot symbols which are in parallel with a series of data symbols. First, a plurality of pilot blocks are generated from the pilot symbol series. By properly summing weighted average values of the pilot symbols included in the pilot blocks, the channel estimation value of the data symbol is determined. In such a manner, channel estimation can be performed with high precision. By performing the data symbol channel estimation by using not only the pilot symbols of a slot including the data symbol but also pilot symbols of other slots, the channel estimation can be carried out with higher precision.
Patent CA-2278449-A1 (CA)
Title: Method for quick measure of the resistivity factor of solid samples such as rock samples
Inventor: FLEURY MARC
IPC: G01N33/24
Filed: 1999-07-23
Abstract: Méthode et dispositif de mesure de la courbe de l'indice de résistivité d'un échantillon solide tel qu'un échantillon géologique indépendamment de la courbe de pression capillaire. - On réalise des mesures de l'impédance complexe à plusieurs fréquences, de l'impédance d'un échantillon soumis à une pression radiate de confinement, au cours d'opérations de drainage ou d'imbibition d'un premier fluide initialement saturant, au travers d'une membrane semi-perméable, perméable à ce premier fluide, disposée à une première extrémité d'une cellule de confinement, ceci par injection d'un deuxième fluide sous pression à son extrémité opposée. On applique un ou plusieurs paliers de pression d'injection et, on mesure les variations continues de l'indice de résistivité en fonction de la variation de saturation moyenne sans attendre que s'établisse les équilibres capillaires. On utilise pour cela des électrodes plaquées contre l'échantillon à sa périphérie, ces électrodes ayant une extension longitudinale en rapport avec la longueur de l'échantillon et étant connectées à un impédancemètre. On applique un courant électrique au travers de l'échantillon et on détecte les variations de la différence de potentiel électrique qui en résultent. Les mesures de l'indice Ir peuvent être effectuées dans un temps relativement court: de quelques heures à quelques jours selon la perméabilité de la carotte. - Applications à l'étude de zones souterraines par exemple.
Patent CA-2278521-A1 (CA)
Title: Two phase skin preparations comprising lipophilic and hydrophilic components
Inventor: FREIJ GOERAN
IPC: A61K8/00
Filed: 1998-01-15
Abstract: The present invention relates to a skin preparation comprising lipophilic and hydrophilic components, which is intended for application on skin. The skin preparation according to the present invention is characterized in that it exists as a two-phase system and it is capable of creating a semi-permeable membrane in the skin. The invention also relates to a process for the manufacture of the skin preparation as defined above, which is characterized in that the lipophilic components are dissolved in water in a separate container to be combined with hydrophilic components, which have been blended and brought to react in another vessel. Finally, the present invention also relates to different uses of the skin preparation as defined above.
Patent CA-2281226-A1 (CA)
Inventor: GUERTLER CHRISTOPH
IPC: C07C231/12
Filed: 1999-08-31
Abstract: Using the process according to the invention, it is possible to provide, with few reaction steps, a novel route to .alpha.-substituted ring systems which optionally have further substituents.
Patent CA-2281628-A1 (CA)
Inventor: MICKELSON SCOTT A
IPC: H01H73/22
Filed: 1998-12-15
Abstract: A reverse deflection prevention arrangement is provided for use in a circuit breaker for preventing a bimetal from bending in a direction opposite its normal thermal deflection. The reverse deflection prevention arrangement includes a tab portion extending from a yoke and a corresponding block member disposed on the inside surface of a circuit breaker cover. The tab portion engages the block member when the bimetal is forced to deflect in the direction opposite its normal deflection. An alternate embodiment of the reverse deflection prevention arrangement includes a reinforcement member secured to one end of the bimetal. The reinforcement member strengthens and supports the bimetal so that it is prevented from bending in the direction opposite its normal thermal deflection.
Patent CA-2286830-A1 (CA)
Inventor: JONES COREY D
IPC: B64F5/00
Filed: 1998-03-25
Abstract: L'invention concerne un appareil et un procédé pour assembler un sous-ensemble de pale de rotor principal d'hélicoptère, ledit sous-ensemble comprenant un revêtement de profil aérodynamique inférieur, un noyau, un revêtement de profil aérodynamique supérieur et un ensemble longeron comportant une extrémité et un pied. L'appareil comprend un ensemble inférieur (202) présentant une base (206) avec un logement supérieur à profil aérodynamique, ledit logement supérieur à profil aérodynamique (208) possédant une extrémité et un pied, au moins deux rampes de guidage (214, 216) disposées à proximité du logement supérieur à profil aérodynamique, au moins une des rampes de guidage étant disposée à proximité du pied. Au moins une des rampes de guidage est disposée à proximité de l'extrémité. Plusieurs cames de poussée (230) du bord d'attaque sont disposées à proximité du logement supérieur à profil aérodynamique. Un ensemble supérieur (250), configuré pour rejoindre l'ensemble inférieur, comprend une structure de support (252) et une membrane souple imperméable (254) reposant sur la structure de support, ladite membrane souple imperméable et le logement supérieur à profil aérodynamique formant entre eux une cavité de moulage lorsque l'ensemble supérieur rejoint l'ensemble inférieur.
Patent CA-2287083-A1 (CA)
Title: Method for producing dental replacement
Inventor: UBASSY GERALD
IPC: A61C5/08
Filed: 1999-10-21
Abstract: In the method for manufacturing a dental replacement a dental support structure is provide that has a labial and a buccal side. A fired, pre-shaped ceramic part is placed onto the labial or the buccal side and at least partially embedded in a ceramic paste.      Subsequently, the thus assembled dental replacement is fired.
Patent CA-2287245-A1 (CA)
Title: Contrast agent preparation
Inventor: MYRBRATEN ESPEN
IPC: C07C/
Filed: 1998-04-07
Abstract: In the metallation of complexing agents such as DTPA-BMA with a lanthanide using a lanthanide oxide such as the lanthanide source, oxalic acid is used as a reaction accelerator.
Patent CA-2290308-A1 (CA)
Inventor: DARAISEH ABDEL-GHANI
IPC: H04B7/005
Filed: 1999-11-24
Abstract: A mobile communications system having a multi-level distributed frame selection and power control architecture includes a plurality of base station transceiver subsystems (BTSs) arranged in cells. Each base station transceiver subsystem (BTS) includes a capability for establishing a radio frequency interface with a subscriber unit in conjunction with a telephone call. APSEL provides for implementing a power control and frame selection of compressed packet data in conjunction with the telephone call, the PSEL coupled to and being positioned proximate the plurality of base station transceiver subsystems. A router is coupled to the PSEL for routing compressed packet data to and from the PSEL. Lastly, a CSEL provides for implementing call processing and call management in conjunction with the telephone call, the CSEL coupled between the router and a prescribed mobile switching center (MSC) and further being positioned proximate the MSC, wherein the router is further for routing compressed packet data to and from the CSEL.
Patent CA-2290792-A1 (CA)
Inventor: KAMIYA SEIGO
IPC: C07H15/18
Filed: 1998-05-20
Abstract: Compounds represented by general formula (I) or pharmaceutically acceptable salts or esters thereof; antifungal agents containing the same as the active ingredient; and antifungal compositions containing the same together with azole-type antifungal agents. In said formula R1 and R2 independently represent each hydrogen, optionally substituted C1-16 alkyl, C2-10 alkenyl, C36 alkynyl, C6-12 aryl, C7-15 aralkyl or a heterocycle or -Y-R3 (provided that R1 is methyl when R2 is hydrogen; and R1 is not methyl when R2 is acetyl).
Patent CA-2295143-A1 (CA)
Inventor: MARECHAL GILLES
IPC: H01R13/46
Filed: 1999-03-30
Abstract: The invention concerns marking means for noting the working voltage of an electrical connection element (2; 4), mounted on an accessory or support (3; 5), characterised in that it is in the form of at least a coloured ring (9a, 9b) arranged to be inserted between the connection element (2;4) and its support (3; 5), at least one of the ring dimensions in diametrical direction being not smaller than the corresponding dimensions of the connection element (2; 4) and/or its support (3; 5) at their interface so as to have an annular peripheral display surface (11a, 11b) which, at least partly, is flush with or projects from said connection element and/or its support.
Patent CA-2297108-A1 (CA)
Title: Arrangement and method for electrically controlling the intensity of unpolarised light
Inventor: DULTZ WOLFGANG
IPC: G02F1/1333
Filed: 1998-07-15
Abstract: The invention relates to a device and method for electrically controlling the intensity of unpolarized light, wherein a polarising beam divider receives the light to be controlled via an entrance surface, so that said light is divided into two orthogonal polarised beams. A first device is provided to reflect at least one polarized luminous beam so that two luminous polarized beams can extend parallel to each other. At least one electro-optic element is arranged on the path of the luminous polarized beams. Said element modifies polarization according to the control voltage supplied. A second element reflecting the light beams in the opposite direction is also arranged so that the light beams pass though the electro-element(s) at least twice and are directed by the first reflecting device towards the polarised beam divider. The controlled light can be extracted from at least one entrance surface of the polarizing beam divider.
Patent CA-2297343-A1 (CA)
Inventor: KYLLINGSTAD VERNON L
IPC: B01J31/22
Filed: 2000-01-27
Abstract: Penta-coordinated ruthenium catalysts for the metathesis reactions of olefins, in particular ring opening metathesis polymerization (ROMP) of cyclo-olefin monomers, which are cationic complexes represented by formula I, II or III:   (see formula I) wherein each of X1 and X2, which may be the same or different, is an optionally substituted C3-C20 hydrocarbon group having an allyl moiety as an end group bonded to the ruthenium atom, or X1 and X2 together form a group, optionally substituted, which results from dimerization of an alkene and has at each end an allyl group bonded to the ruthenium atom; L1 and L2 are monodentate neutral electron donor ligands, preferably highly sterically encumbered neutral electron donor ligands such as alkyl phosphines or amines; L~L is a bidentate neutral electron donor ligand, preferably phosphine, amino, imino, arsine or arphos; L3 is a solvent molecule or a neutral mono-dentate electron donor ligand; L~L~L is a tridentate electron donor ligand, preferably phosphorus or nitrogen containing ligand; and [A] is a counter anion weakly coordinated to the ruthenium atom.
Patent CA-2298610-A1 (CA)
Title: Redundant communications in a protective relay
Inventor: POZZUOLI MARZIO
IPC: H02H7/26
Filed: 1999-06-04
Abstract: A redundant communications scheme for a protective relay (12) which allows high speed, reliable, fault tolerant communications betwen peer protective devices in a power distribution network. Communication over a selectable primary communication channel (14a) are interrupted and switched to a secondary communication channel (14b), which can operate according to a different communication protocol, when a fault is detected on the primary communication channel. The fault detection and switching is performed transparently to the main protective relay processor (16).
Patent CA-2300959-A1 (CA)
Title: Tire curing system and method
Inventor: STEIDL LARRY EUGENE
IPC: B29C37/00
Filed: 1997-11-14
Abstract: This invention relates to a tire curing system (10) having a plurality of molds disposed in side by side relation, transporting means (91) for transporting green tires (20) to the tire curing system, loading means (71) for loading a green tire (20) into a bottom mold half (14) of one of the molds, mold closing means (34) for closing a top mold half (13) over the bottom mold half (14), self-locking means (15) for locking the top mold half to the bottom mold half, curing means (18) for curing the green tires, mold opening means (35) for opening the top mold half from the bottom mold half, unloading means (72) for unloading the cured tire (22) from the bottom mold half (14) and take-away means (17) for carrying the cured tires (22) away from the curing system (10). The loading means (71) and the unloading means (72) include a movable robot (40) and the mold closing means (34) and the mold opening means (35) include a movable manipulator (30). The robot and the manipulator move in straight lines.
Patent CA-2307737-A1 (CA)
Inventor: IVANSONS IVARS V
IPC: B29C65/18
Filed: 2000-05-08
Abstract: A sterile containment welding device includes a self-monitoring heater unit upstream from the space between the tube receiving channels. The wafer is positioned in the unit and mounted for movement through the unit prior to moving through the space. The self-monitoring heater unit comprises a heater which heats the wafer and a temperature sensor for monitoring the temperature created by the self-monitoring heater in a rapidly alternating sequence so that the wafer is heated to a predetermined temperature before being moved into the space and contacting the plastic tube or tubes.
Patent CA-2307957-A1 (CA)
Title: A method for total precipitation of valuable metals from an acid leaching solution
Inventor: SUNDKVIST JAN-ERIC
IPC: C01G1/00
Filed: 2000-05-09
Abstract: A method for the total precipitation of valuable metals from a leaching solution that has been acidified with sulphuric acid and that is substantially free from impurities, by neutralising the solution with lime and/or limestone.  Neutralisation is effected in at least two stages, wherewith only partial precipitation is effected in the first stage, and wherewith full precipitation of remaining valuable metal content is effected in the last stage, by adding a surplus of neutralisation agent. Slurry containing precipitates and remaining solid neutralisation agent formed in the last stage in the neutralisation process is returned to the first neutralisation stage, possibly after re-dissolving the slurry in the incoming acid leaching solution. The amount of slurry returned together with any further neutralising agent added manages said partial precipitation of the valuable metal content.  Metal hydroxide/gypsum precipitate free from neutralising agent and formed in the first stage is washed and then removed from the process for winning metal therefrom in some known manner.
Patent CA-2308116-A1 (CA)
Title: Low-toxicity human interferon-alpha analog
Inventor: PONTZER CAROL H
IPC: C12N1/19
Filed: 1998-10-20
Abstract: The present invention describes a method of reducing the cytotoxicity of interferon-alpha by making defined amino acid substitutions in the N-terminal portion of the polypeptide sequence. Also described are human interferon-alpha analogs with low cytotoxicity, and therapeutic applications of the lowtoxicity interferon-alpha analogs.
Patent CA-2311426-A1 (CA)
Inventor: WAGNER RUPERT
IPC: C07D307/32
Filed: 1998-12-02
Abstract: L'invention concerne un procédé pour la séparation d'impuretés dans de la 3-(2'-acétoxyéthyl)-dihydro-2 (3H) furanone (I), dans lequel la 3-(2'-acétoxyéthyl)-dihydro-2 (3H) furanone contenant les impuretés indésirables est tout d'abord préparée de manière connue en soi par acétylation de 3-(2'-hydroxyéthyl)-dihydro-2 (3H) furanone et ensuite traitée avec des acides minéraux forts, et finalement les produits de décomposition des impuretés indésirables sont séparés de (I).
Patent CA-2313342-A1 (CA)
Title: Rail brake
Inventor: TREMBLAY RON
IPC: B61H7/00
Filed: 2000-07-04
Abstract: A braking system is provided for rail equipment supported for rolling movement on the rails of a railway. The braking system includes a pair of braking elements arranged to be supported laterally spaced apart on the rail equipment for engaging the respective rails of the railway. Each braking element includes an upper brake block for selectively engaging a top side and a side brake block for selectively engaging an inner side of the corresponding rail. Actuators are provided for urging the braking elements downward and outward in relation to the rail equipment. The actuators engage the braking elements with the respective rails to provide a wedging action between respective inner sides of the rails. This arrangement provides considerable braking force using a relatively simple construction.