baber/WOPTO huggingface dataset:
Patent CA-2267429-A1 (CA)
Title: Virtual path aggregation
Inventor: LEE DENNY
IPC: H04L47/41
Filed: 1999-03-30
Abstract: Apparatus and method for implementing virtual path aggregation (VPA) of underlying virtual connections at a switching node of a connection based communications network.      A multi-service traffic shaping module (MTSM) at the switch implements algorithms to aggregate the VC and VP connections onto the aggregate VP by representing an aggregate VP as a plurality of circular linked lists or loops and assigning each VC connection to a link or element in the circular linked lists according to traffic descriptors. Weighting factors are used as between loops to dynamically select the next loop to service. Once this loop is chosen, the next VC to be serviced is identified by examining the circular linked list structure.
Patent CA-2267439-A1 (CA)
Title: High surface area metal nitrides or metal oxynitrides for electrical energy storage
Inventor: DENG CHARLES Z
IPC: H01G9/155
Filed: 1997-09-30
Abstract: The present invention concerns a process to produce a high surface area iron nitride, titanium nitride, gamma-molybdenum nitride, niobium oxynitride, tantalum oxynitride, vanadium oxynitride, zirconium oxynitride, titanium oxynitride or molybdenum oxynitride coated substrate for use as an electrical energy storage component in a capacitor or a battery configuration, which process comprises: coating a substrate with a solution or slurry of the corresponding metal halide, converting the metal halide to metal oxide, and converting the metal oxide to metal nitride or oxynitride in a gaseous nitrogen atmosphere at elevated temperature.
Patent CA-2267889-A1 (CA)
Title: High channel density wavelength division multiplex (wdm) optical transmission system with negligible four-wave mixing (fwm) penalty
Inventor: DARCIE JANET MARIE
IPC: H04B10/508
Filed: 1997-10-08
Abstract: A source/transmission fiber strategy results in a WDM system with negligible FWM penalty even for closely-spaced channels. The combined performance of a source (210) which provides chirped wavelength pulses with a precise synchronism, along with a transmission fiber (220) dispersion map (240, 250, 260) and a high speed optical modulator (230) avoids pulse overlap.
Patent CA-2271590-A1 (CA)
Inventor: SCRIMAGER CYNTHIA
IPC: B65B7/02
Filed: 1999-05-13
Abstract: An expandable microwave popcorn package which contains a charge of popcorn kernels suitable for preparation in a microwave oven. The package is formed of front and back panels preferably joined together at the top and bottom ends and at the sides by side panels. The back panel includes two or more sections which are joined along slightly overlapping edges and bonded together by a releasable adhesive, thereby forming lap seam(s). Conversion of the package into a serving vessel is made possible by the releasable nature of the adhesive which allows the lap seam(s) to be disengaged after the popping process is complete. Thus the back panel sections can be detached, and possibly removed, to expose the popcorn within the package. Ideally the heat and steam created by the popping process will diminish the bonding strength of the releasable adhesive thereby enhancing the conversion. Separation lines, along which the structural integrity of the package is relatively weak, may also be used in conjunction with a lap seam to enhance the conversion while avoiding manufacturing problems associated with multiple lap seams.
Patent CA-2272869-A1 (CA)
Title: Medical retrieval basket with legs shaped to enhance capture solid matter and reduce trauma
Inventor: BATES JAMES S
IPC: A61B17/221
Filed: 1998-09-30
Abstract: A medical retrieval device, and related method, uses a basket formed by one or more legs to retrieve material such as calculi. At least one of the legs has at least an inner and an outer surface. The outer surface is an atraumatic surface such as a curved surface. The atraumatic surface can include one or more radii. The inner surface can be flat such that the leg has a D-shaped cross section. Other shapes are possible for the inner surface including a pointed shape that enhances the basket's stone crushing or breaking ability.  The inner surface, whatever its shape, can have a rough surface (e.g., serrated, etched, toothed, etc.) for further enhancing the basket's ability to capture stones and other calculi.
Patent CA-2273151-A1 (CA)
Title: Efficient parallel-stage power amplifier
Inventor: SEVIC JOHN F
IPC: H03G3/00
Filed: 1997-12-05
Abstract: An amplifier circuit (40) for providing an amplified signal in response to an input signal. The amplifier circuit (40) includes an input network (44) for applying the input signal to a selected at least one of a plurality of amplifier stages. An output network (48) is provided for coupling the amplified signal from the selected at least one amplifier stage.  The appropriate amplifier stage is selected by a control circuit (56) in response to a desired power value of the amplified signal. By selectively activating only the amplifier stages) that is/are necessary to provide the desired level of output power, increased DC efficiency can be accomplished in applications that require an amplifier which operates linearly over a wide dynamic range.
Patent CA-2273254-A1 (CA)
Title: Improved center feed toilet paper dispenser
Inventor: JOHNSON JOHN R
IPC: A47K10/38
Filed: 1997-12-10
Abstract: An apparatus for containing and dispensing toilet paper. The apparatus holds the toilet paper roll (12) in a stationary position as the loose paper end (28) is pulled from the inner core of the paper roll (12). A housing (10) for containing the paper roll (12) is attached to a base (16), and a cover (20) engaged with the housing (10) compresses the paper roll (12) against the base (16). This compression prevents sag of the layered toilet paper roll (12) as the void in the paper core becomes enlarged.
Patent CA-2275094-A1 (CA)
Title: Bobbin for an encapsulated coil of a solenoid assembly
Inventor: HOFFMAN JOHN A II
IPC: H01F5/02
Filed: 1999-06-16
Abstract: A bobbin for an encapsulated coil is provided for use in a coil assembly in which flange portions are provided on each end to ensure that during the process of encapsulating the coil with an over-molded material a positive seal is established between the bobbin and the over-molded material. Each of the flange portions have first, second, and third flange sections and each of the flange sections have predetermined diameters and peripheral surfaces that are angled with respect to a reference axis of a hole defined in the bobbin. The thin sharp edges formed by the peripheral surfaces of the respective flange sections melt back during the over-molding process.      This melt back creates an intricate blend between the over-molded material and the bobbin thus producing a positive seal therebetween.
Patent CA-2275764-A1 (CA)
Title: Process for the preparation of heteroaryl-phenylalanines
Inventor: VILLA MARCO
IPC: C07D241/12
Filed: 1997-12-15
Abstract: A process for the preparation of het-eroaryl-phenylalanines of formula (II) in which R is a hydrogen atom, a straight or branched C1-C4 alkyl groups or a benzyl group; Ri is an optionally substituted 5 or 6 membered aromatic heterocyclic group with one or two heteroatoms selected among nitrogen, oxygen and sulphur; comprising a cross-coupling reaction among heteroaryl-zinc halide and phenylalanine derivatives is described. Compounds of formula (II) are intermediates useful for the preparation of compounds endowed with pharmacological activity.
Patent CA-2277371-A1 (CA)
Title: Siliceous support media for immobilization of enzymes
Inventor: LE FEVRE GERARD N
IPC: C12N11/14
Filed: 1999-07-08
Abstract: A simple, efficient method for immobilization of enzymes on siliceous supports is reported. The support and the enzyme are linked using a polyfunctional cross-linking agent such as glutaraldehyde. Owing to properties peculiar to siliceous supports, the resulting immobilized enzyme is much more stable than enzymes immobilized on other supports. Consequently, much less enzyme is required. The immobilized enzymes generated via this process are ideally suited for continuous enzymatic production of commodity chemicals and pharmaceuticals such as L-DOPA, and for other enzyme-mediated industrial processes.
Patent CA-2278026-A1 (CA)
Inventor: TYERECH MICHAEL RICHARD
IPC: D06M15/53
Filed: 1997-10-24
Abstract: Aqueous flowable carpet cleaning composition which comprises the following constituents: A) one or more surfactant compounds selected from anionic, nonionic and amphoteric surfactant compounds; B) an aminopolycarboxylic acid salt as a resoiling inhibiting agent; C) an organic solvent; and, D) optionally, a stain repellency imparting composition especially a fluorine containing compound. These aqueous carpet cleaning compositions may include one or more further optional constituents including but not limited to:  further organic solvents or co-solvents, further resoiling inhibiting agents, fragrances, preservatives, viscosity modifying agents such as thickening agents, preservatives, pH adjusting agents, pH buffers, agents for imparting water repellency to carpets and carpet fibers, and agents for imparting oil repellency to carpets and carpet fibers whose total weight generally comprise not more than about 20 wt%., preferably not more than 10 % by weight of the copositions described.
Patent CA-2279873-A1 (CA)
Inventor: BESEL ARLEN DALE
IPC: A47L11/32
Filed: 1998-02-26
Abstract: Apparatus for agitating a cleaning agent into a carpet comprises a housing (16) within which a first and a second roller (76F, 76R) are each mounted for rotation in a first angular direction. A platen (112) is mounted intermediate the rollers (76F, 76R). A belt agitator (134) comprising a fabric substrate having a pile surface is trained about the first and second rollers (76F, 76R) and extends under the platen (112). The rollers (76F, 76R) and the platen (112) support rectilinear movement of the belt agitator (134) in the first direction to bring a portion of its surface sequentially from a first position (140A) within the housing (16) to a contacting position (140B) in which the portion of the surface is in agitating contact with a carpet and, thereafter, to a second position (140C) within the housing (16).
Patent CA-2281797-A1 (CA)
Title: Magnetomechanical eas marker with abrupt bias
Inventor: COFFEY KEVIN R
IPC: H01F1/153
Filed: 1998-05-06
Abstract: A material used to form a biasing element (16) for a magnetomechanical EAS  marker (10) has a coercivity that is lower than that of biasing elements used in conventional magnetomechanical markers. The marker (10) formed with the low coercivity material can be deactivated by applying an AC magnetic field at a level that is lower than is required for deactivating conventional markers. The marker (10) with the low coercivity bias element (16) can also be deactivated when at a greater distance from a de-activation device than was previously practical.
Patent CA-2282073-A1 (CA)
Title: Process and plant for producing a variable gas output
Inventor: BARRY LIONEL
IPC: F25J3/04
Filed: 1999-09-10
Abstract: The present invention is concerned with a process for the separation of a compressed feed gas, particularly compressed air, for delivery to a user of a variable output of a gas product, nitrogen being a preferred gas, by means of a variable-capacity separator fed by a compression apparatus. The invention is useful for the production of nitrogen from air by either distillation or permeation.
Patent CA-2282976-A1 (CA)
Inventor: ARPIN CLAUDE
IPC: B27L7/06
Filed: 1999-09-22
Abstract: A device for cutting a log into at least two pieces, comprises at least one elongated cutting blade having a cutting edge with an edge angle of 40° to 48°, and a pressure system for providing a relative displacement between the log and the at least one cutting blade such that the cutting edge thereof and the log contact one another and the log is thereafter cut lenghtwise by the cutting blade. The use of such a cutting blade enables one to considerably reduce the force required for sectioning a log.
Patent CA-2283603-A1 (CA)
Inventor: CRONIN RICHARD J
IPC: F04D29/58
Filed: 1999-09-27
Abstract: A forced closed-loop cooling system is provided for an electric motor driven submersible pump having a motor housing containing an electric motor with a rotatable motor shaft extending therefrom, and a pump housing attached to the motor housing, the pump housing having a fluid inlet, a fluid outlet, and a pump impeller mounted therein on the motor shaft. The closed-loop cooling system consists of a coolant jacket surrounding the motor housing to define an annular motor cooling chamber; an end plate interposed between the motor housing and the pump housing to define a coolant sump about the motor shaft.      The coolant sump is in fluid communication with the annular motor cooling chamber and sealed from pumped fluid in the pump housing by the end plate. The end plate has features for enhanced heat transfer and is in contact with the pumped fluid in the pump housing for transferring heat thereto. There is also provision for forced circulation of coolant between the coolant sump and the annular motor cooling chamber.
Patent CA-2286298-A1 (CA)
Title: Procede et dispositif pour deposer et empiler des produits pliants
Inventor: WITTMAIER KLAUS
IPC: B65H45/101
Filed: 1998-03-25
Abstract: L'invention concerne un procédé et un dispositif servant à déposer et à empiler des produits pliants. A cet effet, une bande sans fin (4) formée par les produits (2) pliants est pliée en accordéon par un dispositif de transfert (7). Lorsque la pile (13) a atteint un niveau prédéterminé, elle est séparée de la bande, de manière qu'un couteau de séparation (18) puisse être introduit et qu'une lame (23) puisse être ressortie dudit couteau de séparation (18). L'arête d'un pli est découpée à l'aide de cette lame (23).
Patent CA-2287264-A1 (CA)
Inventor: NORDWALL THOMAS JAN PETER
IPC: H03F1/02
Filed: 1998-04-03
Abstract: A power amplifier circuit is provided which comprises an input terminal for receiving an input signal and an output terminal for providing an output signal, and at least one transistor for amplifying the input signal to provide the output signal, and means for controlling the input signal received at the input terminal, and means for generating a control signal which substantially follows the temperature of the at least one transistor at least in a selected temperature range. The means for controlling the input signal controls the input signal such that the control signal is prevented from exceeding a predetermined level. The level corresponds to a predetermined temperature of the at least one transistor which is equal to or below a specified maximum temperature for the at least one transistor.
Patent CA-2288322-A1 (CA)
Title: Block oligomers containing 1-hydrocarbyloxy-2,2,6,6-tetramethyl-4-piperidyl groups as stabilizers for organic materials
Inventor: GALBO JAMES PETER
IPC: H04N19/146
Filed: 1998-05-25
Abstract: Compounds of formula (I), wherein n is a number from 2 to 14; R1 is for example C1-C18alkyl or C5-C12cycloalkyl; R2 is for example C2-C12alkylene; A is for example acetyl, (C1-C4alkoxy)carbonyl, (C1-C4alkyl)aminocarbonyl or C1-C4alkyl; B is -OR3, -N(R4)(R5) or a group of formula (II); R3, R4 and R5, which are identical or different, are for example hydrogen or C1-C18alkyl, or -N(R4)(R5) is additionally a group of formula (III) with Y being -O-, -CH2-, -CH2CH2- or >N-CH3; X is -O- or >N-R6; R6 is for example hydrogen or C1-C18alkyl; and R is preferably a group of formula (IV); with the proviso that in the individual recurrent units of formula (I), each of the radicals B, R, R1 and R2 has the same or a different meaning. The indicated compounds are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers.
Patent CA-2288529-A1 (CA)
Inventor: UEGAKI TATEO
IPC: B21D1/06
Filed: 1999-11-04
Abstract: The present invention relates to a method of repairing the damage of the outside plate panel of a vehicle, a method of calculating the amount of a repair work and a tool used for repairing the damage of the outside plate panel of a vehicle.      A method of repairing the damage of a panel of a vehicle body according to the present invention comprises the steps of: (a) marking points at a damaged part of the vehicle panel, the points being distributed from the central part to the outer edge parts of the damaged part; and (b) pulling out the marked panel at the points successively from the outer points to the inner points of the points. Further, a method of calculating the amount of a repair work of a vehicle body according to the present invention comprises the steps of: (c) marking pulling-out points of a damaged part at prescribed intervals in the damaged part of the panel of the vehicle body; (d) counting the number of points marked in the step (c); and (e) calculating the amount of a repair work in the damaged part of the vehicle body by multiplying the points counted in the step (d) by prescribed time or a prescribed area. Still further, a sheet for a repair work of a vehicle body comprises points distributed by providing a central part as an origin or a cardinal point and area display parts for dividing stepwise the respective points into a plurality of areas from the central part toward outer parts. The respective points indicate pulling-out work positions and the respective areas divided by the area display parts indicate the sequence of pulling-out works. According to the present invention, the damaged part of the outside plate panel of a vehicle may be liable to be repaired in a short time.
Patent CA-2291061-A1 (CA)
Title: Network printer auto-detection method and system
Inventor: SORKIN MAXIM A
IPC: H04L29/06
Filed: 1998-05-06
Abstract: In an electronic network (10) having a computer (14), a spooler (12), and a printer (24), the network address of the printer is automatically detected by a method and a system in which a non-print job, which includes a job header (52) identifying the sending computer, is generated by the computer and transmitted via the spooler to the printer.  The printer responds by transmitting an acknowledgment which includes the network address of the printer, to the sending computer. The sending computer identifies and stores the printer address therein. Thereafter, the printer address stored at the computer can be used to provide direct communications with the printer, for purposes of certain printer related functions such as determining the printer configuration or set-up, or monitoring the printer.
Patent CA-2292214-A1 (CA)
Inventor: GIPSON THOMAS C
IPC: E21B7/02
Filed: 1999-12-06
Abstract: A novel rotary table is secured to the top of a well's BOP simplifying the making up of sectional tubing joints used in some aspects of operations with coiled tubing. The rotary table comprises top a bottom stationary housing affixed to the BOP, a top housing supported on the bottom housing by an annular bearing, a split clamp to transferring the weight of the tubing to the top housing and seals between the top and bottom housings and between the top housing and the tubing. More preferably, a coiled tubing rig is provided having a frame, a tiltable mast, an injector reel, a tubing straightener and a jib crane in combination with the rotary table for increased functionality including drilling surface hole using coiled tubing. The mast tilts between two positions, either aligning coiled tubing and injector with the BOP or aligning a jib crane and tubing elevators for manipulating sectional tubing including BHA onto and through the rotary table.
Patent CA-2292751-A1 (CA)
Title: Methods for identifying drug cores
Inventor: MOORE JONATHAN
IPC: G01N33/53
Filed: 1998-06-15
Abstract: The present invention relates to methods for detecting chemical moieties that may serve as the core or scaffold of a potential drug that is directed to a target.
Patent CA-2293818-A1 (CA)
Title: Preferential heating of materials by use of non-ionising electromagnetic radiation
Inventor: TRAN VAN NGUYEN
IPC: A61L2/12
Filed: 1998-06-11
Abstract: Method and apparatus for preferential heating of a material are based on exposing the material to high intensity, pulsed, non-ionising electromagnetic radiation. The method can destroy microorganisms, sterilize packaging, or sterilize moist food. An embodiment uses microwave radiation with pulse duration of less than 0.1 second with an average power of at least 1 kW to sterilize open-ended metal cans prior to packaging.
Patent CA-2295727-A1 (CA)
Inventor: CHIN SEO YONG
IPC: G10L13/00
Filed: 1998-07-04
Abstract: Cette invention se rapporte à un téléphone cellulaire numérique, doté d'une fonction de reconnaissance vocale, qui reconnaît les signaux vocaux au moyen de composants incorporés. Un vocodeur comprime une entrée de signal vocal issue d'un microphone et délivre en sortie des données sous forme de paquets. Une mémoire non volatile sert au stockage des données sous forme de paquets et de données de caractéristiques correspondantes. Un dispositif de reconnaissance vocale extrait les données de caractéristiques des données sous forme de paquets délivrées par le vocodeur, et compare ces données de caractéristiques aux données de caractéristiques enregistrées dans la mémoire non volatile de manière à déceler les données de caractéristiques enregistrées similaires aux données de caractéristiques en entrée, ainsi qu'une valeur de différence entre ces données, afin de déterminer si un signal vocal d'entrée est reconnu avec succès en fonction de cette valeur de différence.
Patent CA-2295748-A1 (CA)
Inventor: CAVAZZA CLAUDIO
IPC: A61K31/22
Filed: 1998-06-18
Abstract: L'invention porte sur une alcaloyle L-carnitine (telle que propionyle L-carnitine) et une statine (telle que simvastatine) utilisées en combinaison dans le traitement de pathologies résultant d'un métabolisme lipidique altéré. L'invention est caractérisée par l'utilisation combinée d'une co-administration simultanée des deux ingrédients actifs et de l'administration d'une composition combinée comprenant un mélange des deux ingrédients actifs.
Patent CA-2296479-A1 (CA)
Inventor: KIM SUN-MI
IPC: H04W28/26
Filed: 1999-06-14
Abstract: L'invention concerne un dispositif et un procédé permettant de commander l'accès à un canal. Selon le procédé, une station de base réserve un créneau temporel d'accès spécifique à une station mobile quand celle-ci doit transmettre des données dont la longueur excède une trame. La station de base reçoit de la station mobile les informations d'accès au canal via un canal d'accès de retour ; elle examine la longueur des données de transmission comprises dans les informations d'accès au canal reçues, de façon à déterminer si lesdites données de transmission continuent dans au moins une trame suivante ; et elle réserve à la station mobile un créneau d'accès spécifique sur le canal d'accès de retour via un canal d'accès d'aller quand les données continuent dans au moins une trame suivante.
Patent CA-2297133-A1 (CA)
Title: Treatment of diabetes with thiazolidinedione, insulin secretagogue and alpha glucocidase inhibitor
Inventor: BUCKINGHAM ROBIN EDWIN
IPC: A61K31/452
Filed: 1998-07-16
Abstract: A method for the treatment of diabetes mellitus and conditions associated with diabetes mellitus in a mammal, which method comprises administering an effective non-toxic and pharmaceutically acceptable amount of an insulin sensitiser, an insulin secretagogue and an alpha glucosidase inhibitor antihyperglycaemic agent, to amammal in need thereof; and composition for use in such method.