baber/WOPTO huggingface dataset:
Patent CA-2201433-C (CA)
Title: Microprocessor control for a heat pump water heater
Inventor: BROWN ROBERT R
IPC: H05B3/78
Filed: 1997-04-01
Granted: 2000-09-26
Abstract: A microprocessor based control system monitors and controls a heat pump water heater system and interfaces the water heating system with an external centralized control system.  The microprocessor control system includes sensors, safety switches, device interface relays, user interface devices and precanned software to provide versatile monitoring and control over a heat pump type water heating system.  The system generally involves a typical heat pump coupled with a domestic water heater, hot water retention tank or other body of water.  The control system provides operational control over the heat pump to maintain the hot water stored in the domestic water heater in a predetermined setpoint and controls the use of electric resistance heating elements in the domestic water heater for added heating capacity for quick heat recovery type operation.  The control system receives a centralized signal typically from a utility company to disable heat pump water heating operation during peak demand time periods. Control logic is provided to carry out effective liming parameter control, high evaporator temperature control, and defrost/anti-freeze protection control.
Patent CA-2203367-C (CA)
Title: Foamable formulation and foam
Inventor: GILCHRIST THOMAS
IPC: A61K8/20
Filed: 1995-12-05
Granted: 2007-02-06
Abstract: There is described a foamable formulation comprising a foamable carrier and an active ingredient which may be admixed with the carrier or packaged separately and dispersed into the carrier during the foaming process. Alginate gel is a preferred foamable carrier. The foam produced from such a formulation and a foam sheet produced by drying the foam, also form part of the invention. The formulation, foam and foam sheet are especially useful for medical applications, for example in treating burns. An apparatus to store the components of the formulation and to generate the foam is also described.
Patent CA-2206966-C (CA)
Inventor: WU KE-LI
IPC: H01P1/208
Filed: 1997-06-03
Granted: 1999-08-03
Abstract: A microwave circular waveguide cavity and filter containing said cavity has a circular iris mounted transversely within the cavity.  The iris has an eccentrically located circular aperture that is sized and located to control coupling between modes resonating in the cavity.  The cavity can be a dual mode cavity, a triple mode cavity or a higher mode cavity.  In a method of constructing such a cavity, coupling can be controlled by choosing from a number of variables including the size of the aperture, the offset distance, the inclination angle, the thickness and the location of the iris within the cavity.
Patent CA-2209225-C (CA)
Inventor: SCHAUDER COLIN D
IPC: H02J3/18
Filed: 1995-12-14
Granted: 2005-02-08
Abstract: A series compensator (11) for damping power oscillations in an electric power transmission system (1) includes a switching power converter (13) which injects a voltage into the transmission line (5) having a phase angle relative to transmission line current which is controlled to provide reactive compensation and to inject virtual real impedance into the line. The switching power converter (13) is a dc to ac converter which is capable of injecting virtual real impedance into the transmission line by virtue of the fact that it has a power exchange device (27) connected to its do terminals (29). Where the power exchange device (27') is a resistor (37), the switching power converter (13) is capable of absorbing real power during surges in power on the line (5). Alternatively, the power exchange device (27) is a storage device (31) such as a battery bank or a super conducting magnet, in which case the switching power converter (13) can provide both virtual positive and negative real impedance.
Patent CA-2211385-C (CA)
Inventor: DAVOUDZADEH DAVID
IPC: C12P21/08
Filed: 1996-11-20
Granted: 2001-03-20
Abstract: Nouveaux dérivés du LSD de formule (I) où R1 est un groupe alkyle, cycloalkyle ou aryle de 1 à 10 atomes de carbone, préférablement un groupe alkyle de 1 atome de carbone; R2 est une liaison ou (a) où R3 est un groupe alkyle, cycloalkyle ou aryle de 2 à 10 atomes de carbone, préférablement un groupe alkyle de 2 ou 5 atomes de carbone; Z est une substance transporteuse immunogène, un polypeptide donneur enzymatique ou un marqueur choisi dans le groupe constitué d'une enzyme, d'une substance ayant des propriétés fluorescentes ou luminescentes et d'une substance radioactive; et n varie de 1 à p où p est égal au poids moléculaire de Z/1000. Les dérivés comprennent des conjugués maléimide d'un poly(acide aminé) immunogène, un polypeptide donneur enzymatique ou une substance de marquage comme une enzyme, une substance fluorescente ou une substance radioactive. On divulgue également de nouveaux intermédiaires d'haptènes activés utiles dans la préparation des conjugués et une méthode de synthèse des intermédiaires d'haptènes et de leurs dérivés conjugués.
Patent CA-2211411-C (CA)
Inventor: GESING ERNST RUDOLF F
IPC: C07D401/12
Filed: 1996-01-15
Granted: 2006-10-24
Abstract: L'invention concerne des sulfonylamino(thio) carbonyl-triazoline(thi)ones de la formule (I) dans laquelle Q<1> désigne oxygène ou soufre, Q<2> désigne oxygène ou soufre, R<1> désigne hydrogène, hydroxy, amino, alkylidène-amino ou un reste éventuellement substitué du groupe alkyle, alcényle, alkinyle, alcoxy, alcényloxy, dialkylamino, alcanoyle-amino, cycloalkyle, cycloalkylamino, cycloalkylalkyle, aryle, arylalkyle, R<2> désigne hydrogène, hydroxy, mercapto, amino, halogène ou un reste éventuellement substitué du groupe alkyle, alcényle, alkinyle, alcoxy, alcényloxy, alkinyloxy, alkylthio, alcénylthio, alkinylthio, alkylamino, alcénylamino, alkinylamino, dialkylamino, alcanoyle-amino, aziridino, pyrrolidino, pipéridino, morpholino, cycloalkyle, cycloalcényle, cycloalkyloxy, cycloalkylthio, cycloalkylamino, cycloalkylalkyle, cycloalkylalcoxy, cycloalkylalkylthio, cycloalkylalkylamino, aryle, arylalkyle, aryloxy, arylalcoxy, arylthio, arylalkylthio, arylamino, arylalkylamino, ou R<1> et R<2> désignent conjointement alcanediyle éventuellement ramifié, et R<3> désigne aryle, arylalkyle ou hétéroalkyle éventuellement substitués, sous réserve que Q<1> ou Q<2> désigne soufre ou ou que les deux désignent soufre. L'invention concerne également des sels des composés de la formule (I), et des procédés de préparation des nouveaux composés de la formule (I) et de leur sels, et l'utilisation de ces composés comme herbicides. L'invention concerne en outre leurs composés intermédiaires de la formule (IV) dans laquelle Z désigne halogène, alcoxy, aryloxy ou arylalcoxy.
Patent CA-2212850-C (CA)
Title: Borage seed oil as an anti-irritant in compositions containing hydroxy acids or retinoids
Inventor: HABIF STEPHAN SAMUEL
IPC: A61K8/00
Filed: 1997-08-13
Granted: 2005-11-08
Abstract: Oil-in-water emulsions containing hydroxy acids and/or retinoids and further containing borage seed oil as an anti-irritant. Borage seed oil was found to be uniquely effective (when compared to gamma-linolenic acid, or other anti-irritants containing gamma-linolenic acid or other known anti-irritants) in reducing the irritation caused by hydroxy acids and/or retinoids.
Patent CA-2216154-C (CA)
Inventor: SHOBER EDWARD WHARTON
IPC: A01N25/34
Filed: 1996-03-20
Granted: 2003-09-02
Abstract: A method of controlling house dust mites is disclosed. In particular articles such as pillows or mattresses for use in the methods are provided.
Patent CA-2220164-C (CA)
Inventor: UWAJI TETSUO
IPC: B29B17/00
Filed: 1997-10-31
Granted: 2001-01-23
Abstract: According to a film removing device, a film-coated resin molded material having a film coated on one surface of a matrix resin is flattened by a flattening roll in a heating chamber.  Further, the film-coated resin molded material is fed between a peeling roll and a feeding roll of roll type rolling means for rolling and stretching.  The velocity of a peeling surface of the peeling roll is made relatively higher than the velocity of a feeding surface of the feeding roll, whereby a difference in elongation between the matrix resin and the film, and a shearing force are produced to peel the film.  An applicator type supply device supplies a liquid as frictional force reducing means (e.g. water) to the peeling surface and the feeding surface.          Thus, a frictional force is reduced, and stretching accompanying rolling fully works.  Consequently, the film becomes easy to fracture and peel, and its peeling can be performed effectively.
Patent CA-2227264-C (CA)
Title: Amine acid salt compounds and process for the production thereof
Inventor: YOO SEO HONG
IPC: C07D235/20
Filed: 1996-08-16
Granted: 2002-10-22
Abstract: A stoichiometric acid moiety transfer reaction for the preparation of an acid salt of an amine compound is disclosed. The acid moiety transfer reaction provides amine acid salts of high purity and having crytalline structure of uniform size and shape.
Patent CA-2228052-C (CA)
Inventor: YORDAN JORGE L
IPC: C09C1/42
Filed: 1996-07-25
Granted: 2008-03-18
Abstract: Kaolin clays are conditioned for the removal of colored titaniferous impurities by (A) first mixing the kaolin clay with a collector to condition the impurities, in the absence of a dispersant, but in the presenc e of sufficient water to yield a mixture having a solids content of at least 65 percent by weight and (B) then deflocculating the kaolin clay mixture at a pH of at least 4.0 with a dispersant in amounts sufficient to yield a kalolin clay slurry which is suitable for subsequent processing to remove colored titaniferous impurities.
Patent CA-2229637-C (CA)
Title: Recording medium and recording method for using the same
Inventor: ISHIZAKI AKEMI
IPC: B41M5/00
Filed: 1998-02-16
Granted: 2003-03-11
Abstract: There is provided a recording medium comprising a substrate and an ink-receiving layer containing alumina hydrate formed thereon, wherein the alumina hydrate is present unoriented in the ink-receiving layer and a diffraction intensity fluctuation .delta. in a diffraction pattern is not more than 5 %, when irradiating an electron beam to a cross section of the ink-receiving layer.
Patent CA-2233814-C (CA)
Inventor: BIER ERIC A
IPC: G06T11/80
Filed: 1998-04-01
Granted: 2002-08-06
Abstract: A computerized two-dimensional illustration system composes an image of a scene with layered synthetic graphics filters or lenses. The scene is defined by an ordered list of shapes. Some of the shapes in the ordered list of shapes are lenses. Each lens is a shape that has a fill color which is an operator rather than a constant. The operator of a selected lens performs a filtering function on the shapes ordered below it in the list of shapes. To compose a selected lens inthe scene, the system first computes an under-list of shapes for the selected lens. The under-list of shapes is used to identify those shapes in the ordered list of shapes to which the filtering function of the selected lens may apply. Depending on the filtering function of a lens, the lens composes in either a back-to-front order or a front-to-back order. A lens composes in a back-to-front order by freezing lenses in the under-list before applying the filtering function of the lens to shapes in the under-list. In contrast, a lens composes in a front-to-back order by applying the filtering function of the lens to the under-list of shapesbefore freezing lenses in the under-list. When a lens is frozen, it is replaced with a cluster of shapes that are formed independently of other shapes in the list ofshapes.
Patent CA-2233853-C (CA)
Inventor: OHMER HERVE
IPC: E21B7/04
Filed: 1998-04-02
Granted: 2005-08-16
Abstract: A method and apparatus for positioning and accurately orienting well service equipment within a well casing having an indexing coupling therein to permit the conduct of selected well service operations. A well logging sonde including an ultrasonic scanner system is run into the well casing and, in addition to conducting a conventional well survey, provides accurate measurement of the internal geometry of the indexing couplings and produces an acoustic image specifically identifying internal features such as landing profile and orienting slot orientation relative to earth frame references such as vertical, horizontal, and magnetic north. The present invention also provides for location and characterization of casing imperfections, such as internal and external corrosion, and variations in casing wall thickness, and also permits location of marker devices such as magnetic and radioactive markers. The ultrasonic logging sonde produces a well log specifically identifying the location and orientation of each indexing coupling, thus enabling subsequent well operations, such as the drilling of lateral branches, to be designed and controlled.
Patent CA-2234971-C (CA)
Title: Method and apparatus for removing or defeating effects of copy protection signals from a video signal
Inventor: QUAN RONALD
IPC: H04N7/169
Filed: 1996-10-17
Granted: 2001-08-07
Abstract: In a known copy protection process for preventing recording of video signals, pseudo sync and AGC pulses (Fig. 2) are present on predetermined lines within the blanking intervals of the video signal so that any subsequent video tape recording of the video signal shows a picture of very low entertainment quality. This copy protection process is defeated first by determining the location of the video lines containing the copy protection using the color burst signal or chroma in the horizontal blanking interval to determine online detection (Fig. 4). Then some or all of the lines including copy protection signals are modified so as to render the overall video signal recordable. The modification is accomplished in a number of ways, including gain shifting portions of the video signal, level shifting portions of the video signal, bandwidth limiting certain portions of the video signal or replacing certain portions of the video signal with other video elements (Fig. 5).
Patent CA-2235100-C (CA)
Inventor: QUAN RONALD
IPC: H04N7/167
Filed: 1992-11-12
Granted: 2000-01-25
Abstract: A video-scrambling system induces a random wobble i.e., time shifting, in the location of active portion of the video frame, without affecting the horizontal sync signal and colorburst in each video line, thus providing both security and concealment.  The security is enhanced by filling in the gap between the nominal beginning of active video and the actual beginning of active video with a synthesized video signal which replicates the adjacent active video using a digitally generated filling pattern. Also, a random noise overlay further conceals the location of the gap.  Additional concealment is provided by wiggling in time the location of the horizontal sync signal using one or two frequencies and also by randomly altering the location of the vertical sync signal.  The NTSC digital encoding in accordance with the invention is simplified by using only two channels, chrominance and luminance, and by a heterodyne circuit for chrominance stability.  NTSC encoding is enhanced by providing detail normally lost, by use of the chroma channel.  Additionally, a non-standard video signal may be provided with a portion of the colorburst on the front porch of the horizontal blanking, thus allowing use of a relatively simple decoder.
Patent CA-2235336-C (CA)
Title: Method for purifying dimethyl sulphoxide (dmso)
Inventor: BAZIN ISABELLE
IPC: C07C317/04
Filed: 1996-11-15
Granted: 2004-09-21
Abstract: A method for purifying dimethyl sulphoxide (DMSO), wherein the liquid DMSO with a low water content is contacted with an ion exchange resin in the form of -SO3H, and the liquid is separated from the resin. The resulting DMSO has an iron cation tracer element content of at most 1 ppb and an Na cation tracer element content of at most 2 ppb.
Patent CA-2237280-C (CA)
Title: Free-standing rotational rod-fed source
Inventor: HILL RUSSELL J
IPC: C23C14/24
Filed: 1998-05-11
Granted: 2007-01-02
Abstract: In a rotational rod-fed electron-beam evaporation source used with sublimating rod material, the ingot rod can be free-standing with respect to the crucible. This means that the side of the ingot rod near the tip of the rod does not contact a cooling crucible. In this way, the system can be operated in a defocused position of the electron beam, and the sweep of the electron beam can go over the edge of the ingot rod tip. Using these features, a substantially radial sweep of the tip of an ingot rod that sweeps over the edge can produce a substantially flat evaporation pattern on the ingot rod, producing a good utilization of the expensive ingot rod material.
Patent CA-2237448-C (CA)
Inventor: ROBINSON IAN
IPC: F16L58/18
Filed: 1998-05-13
Granted: 2005-05-03
Abstract: A method of protecting from corrosion the junction between adjoining plastics coated, metal pipes, in a pipeline installation or the like, comprising roughening the exposed surface of the plastics coating on either side of the junction region, applying a primer over the abraded region of the plastics coating, allowing or causing the primer to cure or dry, and subsequently applying over the said junction region and over the regions primed with said primer, a protective top coat.
Patent CA-2240692-C (CA)
Title: Reactive diluents for acid curable phenolic compositions
Inventor: GERBER ARTHUR H
IPC: C08K5/00
Filed: 1996-12-23
Granted: 2006-10-24
Abstract: Disclosed are acid hardenable phenolic resin compositions and novolac compositions modified with about 5 to about 15 % by weight of at least one reactive diluent selected from the group consisting o f benzylic alcohol, benzylic ether, ethylene glycol, 1,3-butylene glycol, monoallyl or methylallyl ethers of poly(methylol)alkanes, monoallyl ether of glycerine, allyl or methallyl glycidyl ether, N-acylated arylamine, N-acylated naphthylamine, N-substituted arylsulfonamide, and N- substituted arylamine. The reactive diluent can be used to improve impact resistance and flexibility of the acid hardenable phenolic resin. Preferably, the methods for modifying mix life of acid hardenable phenolic resin by use of aryl phosphite and benzylic alcohol, and methods for modifiying novolac resins, as well as methods for making the present compositions and products, such as coiled filament pi pe and laminate panels, employing the compostions are also disclosed.
Patent CA-2245062-C (CA)
Title: Liner strip for pipelines or tunnels
Inventor: MOLYNEUX SYD
IPC: E03F3/06
Filed: 1998-08-12
Granted: 2003-07-22
Abstract: A liner strip for lining an interior surface of a pipe including an extended plastic strip having T-shaped formations with reinforcing fibers integrally extruded in the liner strip for increasing the liner stiffness and tensile strength to resist forces imposed on the liner during installation.
Patent CA-2247350-C (CA)
Title: Materiau anodique actif, son procede de fabrication et pile secondaire aux ions lithium mettant en application ce materiau
Inventor: MAEGAWA TAKEYUKI
IPC: C01G51/04
Filed: 1997-09-26
Granted: 2005-09-20
Abstract: Procédé servant à fabriquer un matériau anodique actif présentant une composition uniforme, avec un rendement élevé, matériau anodique actif fabriqué au moyen de ce procédé et pile secondaire aux ions lithium. On prépare des solutions aqueuses de nitrate de lithium, de nitrate de cobalt et d'acide tartarique. Après mélange de ces solutions aqueuses selon un rapport stoechiométrique du matériau actif, on supprime l'humidité du mélange au moyen d'un séchage par pulvérisation afin d'obtenir un précurseur. On cuit ce précurseur. L'utilisation d'une couche de ce matériau anodique actif permet de préparer une pile secondaire au lithium à capacité élevée.
Patent CA-2248031-C (CA)
Inventor: GOETTSCHE REIMER
IPC: B27K3/14
Filed: 1997-02-28
Granted: 2006-04-11
Abstract: Disclosed is the use of a timber maintenance preserving agent containing a copper compound, a polyamine and an inorganic fungicide, and a bandage for timber protection maintenance containing said agent.
Patent CA-2256276-C (CA)
Inventor: IWASE MASAYOSHI
IPC: H01M8/02
Filed: 1998-12-17
Granted: 2003-04-08
Abstract: An improved fuel cell makes uniform partial gas pressure of a fuel gas flowing through a gas passage formed between an electrode and a separator of a fuel cell, activating an electrode reaction in a whole region of the electrode surface along the gas passage.  The inlet and outlet for the fuel gas are disposed on a diagonal line of the separator to define a gas passage such that fuel gas smoothly flows even though portions of the passage away from the diagonal line.  This may reduce the separator size and improve the volumetric efficiency of the fuel cell and the diffusibility of fuel gas as well as the drainage of water produced by the electrode reaction.
Patent CA-2261593-C (CA)
Title: Unattended automated system for selling and dispensing motor fuel accepting a variety of payment methods
Inventor: RAMSEY FURMAN D
IPC: G07F5/24
Filed: 1997-07-16
Granted: 2002-04-02
Abstract: A system for an unattended automated service station for selling and dispensing primarily motor fuel from a service island (13). The customer may purchase any selected quantity of motor fuel by a credit or debit card or cash. The system dispenses change in the form of paper bills and/or coins (251) and in the event of a credit/debit transaction the customer can receive a cash advance charged against the respective account used in the motor fuel transaction. In general, the system automatically performs all of the functions normally associated with a retail sales agent including information on goods and services for sale, delivering the goods and services, accepting payment, giving change, and providing a receipt.
Patent CA-2261660-C (CA)
Inventor: MAGARAGGIA FLAVIO
IPC: B03D1/14
Filed: 1998-05-27
Granted: 2002-07-02
Abstract: The invention realises a baffle (40) for a reactor (1) for liquids purification, said reactor comprising: a tank (2) containing the liquid to be purified; a plurality of injectors (3, 20) suitable for introducing in the tank (2) said liquid to be purified; one or more rotating blades (30) arranged inside said tank, suitable for keeping agitated said liquid to be purified. Said baffle (40) is applied to at least one of said one or more blades (30) and it is formed of a disk (41) supplied with a plurality of through openings (42) suitable for favouring, during the rotation of said blades (30), the passing of the descending flow (60) of liquid during the purification, and of the ascending flow (70) of aeriform substance dispersed in said liquid, in order to favour the stabilization of the turbulent motion of the liquid itself in correspondence with said blades (30).
Patent CA-2261773-C (CA)
Inventor: SCHMITZER HEIDRUN
IPC: G01J9/02
Filed: 1997-08-01
Granted: 2005-10-25
Abstract: L'invention concerne un interféromètre à double faisceau (1) pour rayonnement électromagnétique et un procédé pour la compensation de la dispersion ou pour l'augmentation de la résolution spectrale d'un tel interféromètre. Au moyen d'un polariseur (8), qui est amené dans le chemin de rayonnement, est produit un état de polarisation défini P1/2<0> pour les ondes partielles électromagnétiques qui entrent dans les bras de l'interféromètre. Cet état de polarisation est indépendant de la longueur d'onde et peut être différent pour les deux faisceaux partiels. Des éléments optiques (11, 12) modifient l'état de polarisation P1/2<0> des ondes partielles électromagnétiques en fonction de la longueur d'onde  lambda  et chaque composante spectrale  lambda i est codée avec une polarisation P1/2<0> ( lambda i). Un analyseur (9), monté à la sortie de l'interféromètre, émet un état de polarisation réglable Pdet, ce qui produit une différence de phase  gamma ( lambda ) additionnelle, dépendante de la longueur d'onde, entre les ondes partielles des composantes spectrales. Cette différence de phase  gamma ( lambda ) peut être réglée de façon que la dispersion soit compensée ou que la résolution spectrale de l'interféromètre soit augmentée.