baber/WOPTO huggingface dataset:
Patent CA-2255825-A1 (CA)
Title: Quadrature elliptical birdcage coil for nmr
Inventor: LEIFER MARK CURTIS
IPC: A61B5/055
Filed: 1998-03-17
Abstract: Angular and current distributions for an elliptical birdcage resonator are realized in a design that achieves constant electrical phase between adjacent legs of the coil. Equal peak currents in the driven legs of the orthogonal modes yields exact quadrature operation.
Patent CA-2258887-A1 (CA)
Title: Eyesafe laser transmitter
Inventor: CHEN TZENG S
IPC: G01S17/10
Filed: 1998-04-14
Abstract: An eyesafe laser (10) transmitter having a single resonator cavity (16) for both the pump laser and the optical parametric oscillator (22). A Nd:YAG rod (24) provides gain for light at a first wavelength. A combined Q-switch/Brewster plate (26) Q-switches the light to increase its intensity and polarizes the light so that its polarization plane is perpendicular to the Z-axis of a KTP crystal functioning as the optical parametric oscillator, thereby providing type II phase matching conditions. The optical parametric oscillator transforms the light at the first wavelength to light at a second wavelength which is output through a partially reflective outcoupler at a wavelength which will not harm the eyes.
Patent CA-2259359-A1 (CA)
Inventor: MARCHETTI LUIGI
IPC: D05B1/20
Filed: 1997-04-09
Abstract: The seams for joining together, along the crotch, the pieces of fabric making up the article and/or for closing the toes of the legs, are made with two needle threads (F1, F2) and one looper thread (F3) that forms a chain stitch, all of them forming long stitches, in such a way that, under the stretching of the garment as it is put on, the seams become essentially "flat", that is to say very thin and certainly much thinner than they are wide.
Patent CA-2260117-A1 (CA)
Title: A high voltage wiring system for neon lights
Inventor: RUMSEY ROGER L
IPC: H01R13/53
Filed: 1999-01-19
Abstract: A wiring system by which a high voltage AC current is transported from a transformer to a neon light in a manner to reduce arcing and therefore fire potential, employing a flexible cable having a central current carrying electrical conductor, a symmetrical layer of insulation concentrically surrounding the central conductor, and a symmetrical circumferential layer of shielding conductor surrounding the layer of insulation, and at least one connector for connecting the flexible cable to another piece of equipment, the connector providing a central electrical conductor and a concentric shield grounded to the piece of equipment so that a symmetrical relationship of a central current carrying conductor within a concentric conductive shield providing a concentric and substantially uniform electrostatic field and continuity of ground is maintained throughout the system.
Patent CA-2261115-A1 (CA)
Title: Controlled reactivity quicklime and method for producing aerated autoclaved concrete
Inventor: WALTER DIETHAM
IPC: C04B28/18
Filed: 1997-07-16
Abstract: A method is shown for manufacturing an aerated autoclaved concrete material. A quick-stiffening mixture is prepared by combining a silica containing material, quicklime, a rising agent, gypsum, cement and water. The mixture is deposited into a mold and is allowed to form a stiffened body. The stiffened body is removed from the mold and placed in an autoclave station in which it is steam cured at elevated temperature and pressure. The quicklime which is used to form the quick-stiffening mixture is modified with a chemical modifier to provide a desired degree of chemical reactivity in the quick-stiffening mixture.
Patent CA-2261949-A1 (CA)
Inventor: BECKMANN-TOUSSAINT JUERGEN
IPC: A61K9/00
Filed: 1997-07-21
Abstract: L'invention concerne un agent filmogène de protection contre les infections contenant un composant filmogène et un ou plusieurs principes actifs désinfectants. Cet agent se caractérise en ce qu'il contient (a) comme composant filmogène 10 à 100 g/l de polymères ou de copolymères de polyvinylalcool d'une masse molaire comprise entre 18000 et 200000; (b) comme principe actif désinfectant 0,2 à 3 g/l d'iode sous forme d'iode de polyvinylpyrrolidone et/ou 5 à 50 g/l de chlorhexidine; et (c) 2 à 50 g/l d'acides éthercarboxyliques de formule générale R-(OC¿2?H¿4?)¿n?-OCH¿2?-COOH, dans laquelle R désigne un radical alkyle de 4 à 10 atomes de C et n vaut 2 à 8. En outre, l'agent décrit comprend de préférence des épaississants et des agents tensioactifs anioniques ou non ioniques. Il sert notamment à protéger les tétines et les pis de vaches, de brebis et de chèvres contre des infections après la traite et forme un film visible et mécaniquement solide.
Patent CA-2261995-A1 (CA)
Title: Radio-frequency and microwave-assisted processing of materials
Inventor: WROE FIONA CATHERINE RUTH
IPC: H05B6/80
Filed: 1997-07-24
Abstract: There is described a hybrid furnace comprising a microwave source, an enclosure for the confinement of both microwave and RF energy and for containing an object to be heated, and means for coupling the microwave source to the enclosure. The furnace further comprises an RF source, means for coupling the RF source to the enclosure, and a control means for controlling the quantity of microwave energy and RF energy to which the object to be heated is exposed. There is also described a method of operating a furnace of the above type comprising the steps of actuating the microwave source to heat the object and actuating the RF source to provide an oscillating electric field within the object to be heated at a location and/or at a temperature where the field strength of the microwave-induced electric field falls below a predetermined threshold value.
Patent CA-2262387-A1 (CA)
Inventor: UNTERBERG HEINZ
IPC: C07B61/00
Filed: 1996-12-27
Abstract: L'invention concerne un procédé de traitement d'une charge comprenant en majeure partie des hydrocarbures oléfiniques comportant 4 atomes de carbone par molécule, dont de l'isobutène, ainsi que du butène-1 et des butènes-2 en rapport correspondant sensiblement à l'équilibre thermodynamique, tel que l'on traite ladite charge dans une zone de distillation, associée à une zone réactionnelle d'hydroisomérisation, dans laquelle on réalise l'hydroisomérisation d'au moins une partie du butène-1 en butènes-2, ledit procédé étant caractérisé en ce que ladite zone d'hydroisomérisation est au moins en partie externe à la zone de distillation.
Patent CA-2263023-A1 (CA)
Inventor: LE BARAZER BERNARD LOUIS
IPC: B32B3/12
Filed: 1999-02-24
Abstract: L'invention propose un panneau insonorisant comportant une âme de nid d'abeille (5) prise en sandwich entre une peau pleine (12) et une peau poreuse (13), les alvéoles (6) du nid d'abeille (5) étant divisées dans le sens de l'épaisseur (5a) en au moins deux cavités résonantes (11) par au moins une cloison (8) traversée de part en part par des passages (14). Un tel panneau insonorisant est remarquable en se que les cloisons (8) sont constituées de microbilles (15) creuses à parois poreuses liées entre elles et avec les parois (7) du nid d'abeille (5) par leurs points de contact (16,17). Un tel panneau insonorisant combine des performances élevées en termes de linéarité en fonction du niveau sonore d'excitation, de bande d'atténuation, d'encombrement et de résistance mécanique.
Patent CA-2264985-A1 (CA)
Title: 6,8-dimercarptooctanoic acid derivatives substituted in 6-s and/or 8-s by the radical (3-methylthiopropanoyl) and pharmaceutical compositions used to treat cancerous tumors
Inventor: QUASH GERARD ANTHONY
IPC: C07D295/185
Filed: 1999-03-31
Abstract: 6,8-Dimercapto-octanoic acid derivatives (I) which are 6-S and/or 8-S substituted by 3-methylthiopropanoyl, and their enantiomers, racemates and salts are new. 6,8-Dimercapto-octanoic acid derivatives of formula (I) which are 6-S and/or 8-S substituted by 3-methylthiopropanoyl, and their R and S enantiomers, racemates and salts are new. R = OR3 or NR'R''; R3 = H, alkyl or -(CR3R4)n-NR'R''; n = 1-10; R', R'' = H or alkyl; or NR'R'' = a N-heterocycle optionally substituted by O or N (sic) which are themselves optionally substituted; R3, R4 = H or alkyl; R1, R2 = H, COCH3 or CO(CH2)2SCH3 (i); provided that at least 1 of R1 and R2 is a group of formula (i).
Patent CA-2265594-A1 (CA)
Inventor: STRANDJORD LEE K
IPC: G01C19/72
Filed: 1997-10-27
Abstract: A backscatter or secondary wave error reducer for an interferometric fiber optic gyroscope having at least one phase modulator for receiving a square wave bias phase modulation signal and a sine wave carrier suppression modulation signal. The amplitude of the carrier suppression modulation signal is sufficient to greatly reduce the interference between two sets of backscattered or secondary waves of light originating in the Sagnac loop of the gyroscope. Reduction or elimination of the interference of the two sets of secondary waves reduces or eliminates the secondary wave induced rotation rate sensing error. The frequency of the carrier suppression signal is near or equal to an even harmonic of the proper frequency of the Sagnac loop to reduce the simusoidal or periodic rotation rate sensing error caused by the carrier suppression modulation signal.
Patent CA-2269029-A1 (CA)
Inventor: LEWELLEN KEVIN
IPC: B24B1/00
Filed: 1997-10-31
Abstract: A method for polishing articles comprising soft acrylic materials is disclosed. The method includes a cryogenic polishing step and a cleaning step. In the polishing step, a receptacle is charged with polishing beads of various sizes, sodium bicarbonate, a swelling agent and the articles to be polished, for a period of time and at a rotation speed sufficient to remove surface irregularities. Following the polishing step, a receptacle is charged with (a) a cleaning slurry comprising cleaning beads of various sizes and (i) sodium hydroxide and water or (ii) alumina, a surfactant and a solvent and (b) the articles to be cleaned, for a period of time and at a rotation speed sufficient to clean the surface of the polished articles. Agitation is preferably accomplished by a tumbling machine.
Patent CA-2269156-A1 (CA)
Inventor: BLUE JERRY D
IPC: F27D1/00
Filed: 1999-04-16
Abstract: An improved floor for a recovery boiler furnace having a flat floor has a number of replacement tubes in the floor immediately adjacent each of the sidewalls of the furnace oriented at an oblique angle to horizontal. A method of replacing the floor is provided as well.
Patent CA-2269491-A1 (CA)
Title: Optical interconnection system
Inventor: LORD RANDALL B
IPC: G02B6/36
Filed: 1997-10-22
Abstract: An opto-electric jack (40) is provided which can be used as a drop-in replacement for a standard electrical jack such as an RJ-type or D-subminiature type jack.      The opto-electric jack (40) includes housing (12) having a receptacle (120) for receiving an optical plug (500) which is coupled to a fiber optic cable, and a plurality of electrical terminals (70) for connection to an electrical circuit. Preferably, the terminals (70) are arranged in a predetermined array which corresponds to the terminal array (70) of a standard electrical jack. An opto-electric conversion circuit is disposed within the housing (12), and is operable to convert optical signals received from the optical plug into electrical signals for transmission to the electrical circuit via the terminals (70), and to convert electrical signals received from the electrical circuit via the terminals (70) into optical signals which are transmitted to the optical plug (500).
Patent CA-2270170-A1 (CA)
Title: Strengthening flat glass by edge coating
Inventor: PAPANU VICTOR D
IPC: C03C17/00
Filed: 1998-09-01
Abstract: A method is described for strength-ening or restoring strength to a flat brittle oxide substrate (12) which includes the steps of coating the edges of the brittle oxide substrate (12) with a strengthening composition without coating a significant portion of the major flat surfaces of the substrate (12). The strengthened brittle oxide substrate (12), such as glass, and a window containing as a window pane the edge strengthened glass (12) are also provided.
Patent CA-2273168-A1 (CA)
Inventor: THOMPSON KATHERINE MARY
IPC: C11D17/08
Filed: 1997-10-31
Abstract: The invention provides a bleaching composition of pH 10-14 which comprises an oxygen transfer agent and hydrogen peroxide. It is believed that the reaction of hydrogen peroxide with the imine quat. oxygen transfer agents proceeds through a different route than that of the organic and inorganic peroxides. As a consequence, the formation of acyl hydroxamate is significantly reduced.  Furthermore it is believed that when hydrogen peroxide is used as the bleaching agent in the pH range indicated, a surprising improvement in the efficacy of the bleaching system occurs and it is possible to formulate peroxide based systems which have efficacy approaching or exceeding that of hypochlorite without the disadvantages associated with hypochlorite. A further aspect of the present invention provides a method for bleaching a stained substrate which comprises the step of treating the substrate with a bleaching composition of pH 10-14, which bleaching composition comprises an oxygen transfer agent and hydrogen peroxide.
Patent CA-2273749-A1 (CA)
Inventor: CHU ZOOEY
IPC: A47C7/40
Filed: 1999-06-04
Abstract: A chair back is provided with an adjustable lumbar support member. The vertical height of the lumbar support member and/or the amount of lumbar support which is provided by the chair back may be adjusted. The controls for adjusting the lumbar support member are positionable on the sides and the rear surface of the chair back.
Patent CA-2274797-A1 (CA)
Inventor: KOBAYASHI KAZUKO
IPC: A61P31/04
Filed: 1997-12-08
Abstract: Cette invention concerne des composés représentés par la formule générale (I) qui se caractérisent par leur activité antiactérienne étendue et puissante sur des bactéries gram positif y compris celles produisant du .beta.-lactamase et des bactéries gram négatif. Plus particulièrement ces composés possèdent une activité antibactérienne supérieure à celle des dérivés de céphème existants du type sel d'onium, sur le Straphylococcus aureus résistant à la méthicilline (SARM), le Streptococcus pneumoniae résistant à la pénicilline (SPRP) et le Pseudomonas aeruginosa résistant à l'imipenem, cette caractéristique les rendant extrêmement utiles en tant que remèdes contre les maladies infectieuses provoquées par diverses bactéries pathogènes. Dans la formule (I), X représente CH ou M; R?1¿ représente hydrogène, alkyle C¿1-6? éventuellement substitué, alcényle C¿2-6?, alcynyle C¿2-6? ou cycloalkyle; parmi R?2¿, R?3¿, R?4¿ et R?5¿ un élément représente R?6¿R?7¿NSO¿2?NHC¿1-6?,R?6¿ et R?7¿ pouvant être identiques ou différents l'un de l'aute, chacun représentant hydrogène ou alkyle C¿1-6?; et n représente 0 ou 1.
Patent CA-2275776-A1 (CA)
Title: Compensation for mobile assisted handoff measurement inaccuracies
Inventor: BRUNNER RICHARD
IPC: H04W36/30
Filed: 1997-12-12
Abstract: A mobile assisted handoff (MAHO) signal strength measurement is ordered by the cellular telephone system for not only the currently used traffic channel (108) and the reference (control) channels of neighboring cells (104), but also for the reference (control) channel of the current cell (106). These MAHO  measurements are reported (110) to the system where a compensation factor (112) is determined which accounts for the use of different modulation schemes and/or hyperbands by system traffic and control channels. The compensation factor is calculated by subtracting the MAHO measurement made on the reference channel of the current cell from the MAHO measurement made on the traffic channel of the current cell. The calculated compensation factor is then added (114) to each of the MAHO measurements made on the reference channels for each of the neighboring cells to generate compensated signal strength measurements.  The compensated measurements are then compared (116) to the MAHO measurement made on the traffic channel (in view of a predetermined hysteresis) to determine whether a handoff (118) to one of the neighboring cells should be made.
Patent CA-2277176-A1 (CA)
Inventor: SHAH ASHISH
IPC: G06F17/50
Filed: 1998-01-08
Abstract: The invention provides a method and apparatus for selecting desired attributes (201) for system configuration.
Patent CA-2277448-A1 (CA)
Inventor: TOMASETTI FABRICE
IPC: B66B11/02
Filed: 1999-07-12
Abstract: In this car structure (1) for an elevator car, two robust frame elements (3, 4) which bound the enclosure of an elevator car, together with a support structure (2) and two crosspieces (5, 6) which join the frame elements (3, 4), form a framework which stiffens the elevator car. The frame elements (3, 4) support the upper guide shoes (7, 8), the lower guide shoes (9.1, 10.1) being fastened to the side plates (19, 20) of the supporting structure (2) together with the safety gears (9.2, 10.2). Wall elements (27-29) fastened to the frame elements (3, 4), a floor plate (30) resting on the supporting structure (2) and having a floor element (31), and a ceiling plate (32) fastened to the frame elements (3, 4), form the shell of an elevator car.      The instruments and the mechanical and electrical subassemblies required for an elevator car ready for operation can be fastened to the frame elements (3, 4), which serve as mountings, and to the ceiling plate (32).
Patent CA-2280536-A1 (CA)
Title: Sod laying apparatus and method
Inventor: HOUSKA RONALD L
IPC: A01B45/04
Filed: 1998-12-23
Abstract: Sod laying apparatus (20) for use with a self propelled vehicle (24). The vehicle (24) has a front end mounting mechanism (28) having an attachment engagement member (30) for releasably engaging an attachment. The attachment engagement member (30) is moveable between an attachment engagement position in which the engagement member (30) is positioned in a manner to support the attachment in a position suitable for operating the attachment, and an attachment disengagement position in which the engagement member (30) is positioned to facilitate disengagement of the engagement member from the attachment. The sod laying apparatus (20) comprises a sod unrolling unit (22) having a support mechanism (38), and a sod engagement mechanism (47, 46) connected to the support mechanism (38). The sod engagement mechanism (44, 46) is configured to engage a roll of sod (25) in a manner to facilitate rotation of the roll of sod (25) relative to the support mechanism (38). The support mechanism (38) is adapted to be releasably engaged and supported by the attachment engagement member (30) when the attachment engagement member (30) is in its engagement position and adapted to be disengaged from the attachment engagement member (30) when the attachment engagement member (30) is in its disengagement position.
Patent CA-2280957-A1 (CA)
Title: Methods and compositions for delivery of therapeutic agents to bone tissue employing conjugates of negatively charged peptide oligomers with therapeutic agents
Inventor: CHU BARBARA CHEN TEI
IPC: A61K47/48
Filed: 1998-02-13
Abstract: The invention provides conjugates of negatively charged peptide oligomers with therapeutic agents, moieties capable of recruiting endogenous bone-affecting agents, or imaging agents, useful for delivering the agents to bone tissue or calcified masses, and the methods of use thereof. The negatively charged peptide oligomers bind strongly but reversibly to bone tissue and calcified masses with a controllable affinity and retention time on the tissue or mass.
Patent CA-2282817-A1 (CA)
Inventor: RAMPEN EDMOND L
IPC: B67D1/00
Filed: 1998-01-21
Abstract: Distributeur de liquide possédant un réservoir relativement rigide au-dessus d'une structure de réservoir déformable par élasticité. Ce réservoir est accouplé à la structure de réservoir et le fond dudit réservoir comporte une sortie à l'intérieur de ladite structure de réservoir qui comprend également une structure de décharge s'étendant depuis l'intérieur jusqu'à l'extérieur de ladite structure de réservoir. Du liquide est distribué quand l'utilisateur provoque un déplacement relatif entre le réservoir et la structure de réservoir, ce qui augmente la pression dans ladite structure et force, de ce fait, le liquide depuis ladite structure à travers le passage de sortie.
Patent CA-2286521-A1 (CA)
Inventor: MUELLER RUDOLF
IPC: B23P19/06
Filed: 1999-10-18
Abstract: The disclosure relates to a method of producing an electrical connection to a sheet metal part, in particular to a sheet metal part having a non-conductive or poorly conductive protective layer, using a hollow fastener element which is mounted by means of the riveting or pierce riveting process to the sheet metal part, wherein a terminal lug is attached by means of a screw to the hollow fastener element, i.e. to the sheet metal part. The method is characterised in that the screw which is screwed into the hollow attachment element penetrates the sheet metal part and forms or reforms a thread in the sheet metal part. The disclosure furthermore relates to a component assembly which is produced in accordance with the said method.
Patent CA-2287026-A1 (CA)
Inventor: OLSSON DAN
IPC: H02J7/35
Filed: 1999-10-20
Abstract: The invention relates to a device for generating electrical energy for a power supply bus (BUS) connected to a load (CH), and comprising: a) an electrical energy storage unit (BAT) comprising at least one battery; b) a solar energy generator presenting a plurality of modules (MG1 ... MG N); c) a regulator for controlling discharging of the storage unit to power said bus (BUS) from the storage unit (BAT). It is characterized in that it comprises: d) for each module (MG1 ... MG N), a three-state control device presenting: i) a first state in which the current from said module (MG1 ... MG N) powers the bus (BUS); ii) a second state in which the current from said module (MG1 ... MG N) powers the storage unit (BAT); and iii) a third state in which said module (MG1 ... MG N) is short circuited; and e) a control unit for causing the control devices to take up one of their three states.
Patent CA-2287082-A1 (CA)
Inventor: SAKURAI TOSHIO
IPC: C07K1/113
Filed: 1998-03-20
Abstract: An iron-casein complex hydrolyzate being rich in iron, giving an aqueous solution not causing precipitation even by heating, and not tasting astringent. The complex hydrolyzate is produced by (1) limitedly hydrolyzing an iron-casein complex with a proteolytic enzyme or (2) mixing carbonic acid and/or bicarbonate with iron and a product of the limited hydrolysis of casein with a proteolytic enzyme. The complex hydrolyzate gives an aqueous solution not causing precipitation even by heating and is free from astringency, thus being useful as the raw material for food or drugs or as feedstuff.
Patent CA-2288494-A1 (CA)
Title: One trip milling system
Inventor: RITORTO LEONARDO
IPC: E21B7/06
Filed: 1999-10-22
Abstract: A one trip whipstock system includes both a one trip combination mill and associated whipstock. The one trip combination mill comprises an upper cutter and lower cutter below the upper cutter. The upper cutter and lower cutter are joined by a cone that widens towards the upper cutter. In operation, a whipstock is connected to the drilling sub by shear bolts. A guide lug on the whipstock faces the drilling sub between the lower cutter and upper cutter for riding on the cone when the drilling sub is advanced along the whipstock. Preferably the shear bolts connect to the lower cutter. Also, the, lower cutter has smaller gauge than the upper cutter, to such an extent that the relative gauge sizes of the lower cutter and upper cutter permit the upper cutter to exit casing during drilling before the lower cutter exits casing. Further, there may be provided a watermelon mill and a string mill above the upper cutter and the watermelon mill, string mill and the upper cutter preferably have the same gauge. To reduce outer diameter wear on the upper cutter, it has a square leading edge.