baber/WOPTO huggingface dataset:
Patent CA-2319611-A1 (CA)
Title: Absorbent article with breathable backsheet comprising slanted capillary apertures
Inventor: VEGLIO PAOLO
IPC: A61F5/44
Filed: 1999-02-03
Abstract: The present invention relates to absorbent articles like baby diapers, adult incontinence articles and in particular to sanitary napkins or panty liners which have an aperture film topsheet on the surface facing the wearer in use.  According to the present invention the articles are provided also with an apertured backsheet for breathability. The backsheet comprises at least one breathable layer of a resilient, three-dimensional web which consists of a liquid impervious polymeric film having apertures. These apertures form capillaries which are not perpendicular to the plane of the film but are disposed at an angle of less than 90~ relative to the plane of the film.
Patent CA-2320483-A1 (CA)
Title: Methods of inducing hair growth and coloration
Inventor: YAAR MINA
IPC: C07K7/64
Filed: 1999-02-03
Abstract: Methods to control, or manipulate, melanocyte and keratinocyte cell death are disclosed. In particular, a method of preventing epidermal melanocyte cell loss due to injury in a vertebrate is disclosed. Also disclosed is a method of inducing hair growth in a vertebrate, a method of inducing hair color in a vertebrate, a method of inducing skin color in a vertebrate, a method of treating baldness in an individual and a method of treating alopecia areata in an individual.
Patent CA-2323602-A1 (CA)
Title: Multipurpose tool
Inventor: MORIN BRUNO
IPC: G01B3/02
Filed: 2000-10-13
Abstract: A multipurpose tool for use by woodworkers or the like and which includes a body portion having end walls and first and second pairs of opposed side walls, with a plurality of level indicating means, at least one magnet recessed in the body portion, and a recess formed in one end of the body portion and extending between the first pair of opposed side walls, and a protractor arm having a longitudinally extending slot mounted in the recess.
Patent CA-2323774-A1 (CA)
Title: Compositions a activation rf utilisees dans l'adhesion, la liaison et le revetement
Inventor: SKEWES STEVE
IPC: B29C65/04
Filed: 1999-03-17
Abstract: L'invention concerne une composition de suscepteur pouvant lier au moins deux couches ou deux substrats l'un à l'autre et pouvant être utilisée pour revêtir ou couper un substrat. La composition de suscepteur est activée en la présence d'une énergie de radiofréquence (RF). Dans un mode de réalisation, la composition de suscepteur de la présente invention comprend un suscepteur et un support. Le support et le suscepteur sont mélangés l'un à l'autre et forment un mélange, de préférence un mélange uniforme. Le suscepteur est présent en une quantité efficace pour permettre le chauffage de la composition de suscepteur par une énergie RF. Dans un mode de réalisation préféré, le suscepteur fait également office d'adhésif. Le suscepteur est un composé ionique ou polaire et il fait office de constituant soit porteur de charge soit oscillant/vibrant de la composition de suscepteur. Le suscepteur produit une énergie thermique en présence d'un champ électromagnétique ou électrique RF (champ RF). Selon la présente invention, le suscepteur peut être un sel inorganique (ou son hydrate respectif), tel que du chlorure stanneux (SlCl¿2?) ou du perchlorate de lithium (LiClO¿4?), ou un sel organique, tel que l'acétate de lithium (LiC¿2?H¿3?O¿2?). Le suscepteur peut être un sel ionique non ferromagnétique. Le suscepteur peut aussi être un composé ionique polymère ("ionomer") faisant également office, de préférence, d'adhésif et/ou de revêtement. Sous des niveaux de puissance RF d'environ 0,5 kilowatt (kW) à 1 kW, et à des fréquences d'environ 1 à 100 MHz, la composition de suscepteur de la présente invention facilite la liaison de couches individuelles de matériaux polymères tels que des polyoléfines, des matériaux non polyoléfiniques et non polymères, ainsi que la liaison de piles multicouches de ces matériaux.
Patent CA-2323872-A1 (CA)
Inventor: MACHADO ROBERTO C JR
IPC: G06Q40/00
Filed: 2000-10-19
Abstract: A method, system and computer program product for valuating natural gas futures and options contracts using weather-based metrics. The method and computer program product allow gas buyers and traders to make informed decision on purchasing/selling natural gas futures and futures options on a regulated exchange such as the New York Mercantile Exchange (NYMEX) based on historical and forecasted weather. The system includes weather forecast, weather history, and natural gas-related databases, as well as a trading server and several workstation clients, and provides assistance to traders in reaching complex buying/hedging decisions.
Patent CA-2324024-A1 (CA)
Title: Apparatus and method for spreading material
Inventor: SMITH FRANCIS V
IPC: B60P1/56
Filed: 2000-10-20
Abstract: A spreading apparatus utilizes a number of features to improve material discharge and apparatus maintenance. In one embodiment, the apparatus uses a diverter in the box receiving the material for discharge that directs the material along a converging path and then a non-converging path to avoid material bridging and feed stoppages. The apparatus also employs a double tipping mechanism and a gate assembly, which arranges the gates in the plane of the box floor for improved dumping. The gate opening can have a grid to further control material discharge. The spreader device receiving the discharged material can employ one rotatable disc or double rotatable discs for spreading and a deflector plate directing the material to the discs. The box can be configured to utilize a number of different removable chutes, the removable chutes configured to handle a specific type of material for spreading. A particular chute can be selected to match the material intended for spreading.
Patent CA-2326494-A1 (CA)
Title: Assay for methylation in the gst-pi gene
Inventor: MOLLOY PETER LAURENCE
IPC: C12Q1/68
Filed: 1999-04-23
Abstract: A diagnostic or prognostic assay is disclosed for a disease or condition characterised by abnormal methylation of cytosine at a site or sites within the glutathione-S-transferase (GST) Pi gene and/or its regulatory flanking sequences (e.g. prostate cancer and liver cancer). The assay comprises: (i) isolating DNA from said subject, and (ii) determining (e.g. by selective PCR amplification) the presence of abnormal methylation of cytosine at a site or sites within the GST-Pi gene and/or its regulatory flanking sequences.
Patent CA-2329998-A1 (CA)
Inventor: LAGLER LOUIS
IPC: B65D50/04
Filed: 1999-01-27
Abstract: A coordinated multi axis hinge arrangement provides a snap action between stable open and closed states. When the hinges operate between the stable open and closed states across a dead center position, resilient forces imparted by torsionally rigid connecting elements (33.1, 33.2) of the hinge to adjacent hinge parts such as body and lid elements are transferred by coupling or transmitting areas (45.1, 45.2) adjacent the bending regions (34.1 - 34.4) or film hinges to remote resilient deformation energy storage areas (40.1 - 40.3).  As the inge passes a dead center position, this energy is in turn supplied and returned to the rigid connecting elements to impart snap action to the closure. The closure may be cast as a single piece of plastic material and may be cast in the open position.
Patent CA-2333960-A1 (CA)
Title: Ureas and carbamates of n-heterocyclic carboxylic acids and carboxylic acid isosteres
Inventor: WU YONG-QIAN
IPC: A61P25/16
Filed: 1998-12-03
Abstract: This invention relates to novel ureas or carbamates of N-heterocyclic carboxylic acids and carboxylic acid isosteres, their preparation and use fo r treating neurological disorders including physically damaged nerves and neurodegenerative diseases, and for treating alopecia and promoting hair growth.
Patent CA-2335180-A1 (CA)
Title: Grain cleaner
Inventor: READ BRIAN J
IPC: B07B13/16
Filed: 1999-06-16
Abstract: A grain cleaner is taught including features for facilitating maintenance and repair of the cleaner over previous grain cleaners. In particular, the grain cleaner has an indent cylinder assembly which includes a removable cylinder. The cylinder is removed by unwrapping it from around a frame. The grain cleaner also includes at least some augers with drop away troughs. The grain cleaner also includes grain cleaning assemblies such as, for example, indent cylinders and rotary screen drums and/or grain cleaning assemblies drive systems which are mounted on framework members capable of pivoting outwardly from the machine allowing access to machinery and components positioned centrally within the grain cleaner.
Patent CA-2335396-A1 (CA)
Inventor: FORTIN YVES
IPC: B25J17/02
Filed: 2001-02-13
Abstract: A tool compliance device for use with a robotic system for removing material at the surface of a workpiece comprises a tool compliance unit including a rotary actuator having its fixed portion rigidly coupled to a rotary end element integrated at the robot working end and a pivoting end element secured to a pivoting member having a trailing portion supporting a tool assembly. The tool assembly is provided with a tool having guide portions contacting a workpiece-related reference surface. In use, the pivoting member is pulled according to a tool working path while the rotary end element brings the fixed portion of the rotary actuator in a position wherein the pivoting member is allowed to pivot with the tool assembly enabling the tool to move within a tool compliance range at a working position along the tool working path upon contact of the guide means against the workpiece-related reference surface under the torque applied by the rotary actuator, so that the tool compliance range has a non-null component parallel to a normal axis extending from the workpiece surface through the working position to provide compliance of the tool with the workpiece while removing material therefrom. A preferred embodiment for deburring a workpiece made of plastic material uses a tool provided with a trimming head having cylindrical guiding portions separated by a cutting element. The tool compliance device can also be used for other material removing application such as milling, grinding, chamfering or polishing workpieces made of various materials.
Patent CA-2337160-A1 (CA)
Inventor: LEE JEFFREY A
IPC: D21C9/00
Filed: 2001-03-05
Abstract: A process for producing high bulk cellulosic fiber exhibiting a durable elevated curl index includes: (a) concurrently heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency under conditions selected so as to preclude substantial fibrillation and attendant paper strength and fiber bonding development; and (b) recovering the pulp wherein the length weighted curl index of the treated fiber is at least about 20% higher than the length  weighted curl index of the fiber prior to the heat treatment and convolving thereof. The curl imparted to the fiber persists upon treatment for 30 minutes in a laboratory disintegrator at 3000 rpm at 1% consistency at a temperature of 125.degree.F . Moreover, the curl may be imparted to the fiber in a disk refiner at very short residence times, on the order of several seconds or less. In general, the process is carried out  in the presence of saturated steam at a pressure of from about 5 to about 150 psig.
Patent CA-2337541-A1 (CA)
Title: Three-position switch with an axially mobile switching element
Inventor: GUTALJ VLADIMIR
IPC: H01H33/64
Filed: 2001-02-22
Abstract: The three-position, gas-insulated, metal-clad electrical switch inside a metal casing includes first and second break contacts, a fixed grounding contact, and a switching element that is movable in an axial direction to interconnect the break contacts. The first and second break contacts and the fixed grounding contact are superposed in the axial direction, and the switching element is moved by a drive rod which passes through the fixed grounding contact, thereby enabling the switching element to occupy each of the three switching positions including a grounding position in which it connects the first break contact to the fixed grounding contact.
Patent CA-2338400-A1 (CA)
Inventor: BULL DAVID CHARLES
IPC: B27K3/32
Filed: 1999-06-29
Abstract: L'invention concerne un procédé permettant de convertir un cation de métal de transition à une forme anionique à un état d'oxydation élevé. Ce procédé, qui convient à des procédures de récupération de métaux toxiques, consiste en premier lieu à utiliser une cellule électrolytique pourvue d'un catholyte acide séparé d'un anolyte de la forme cationique du métal de transition en solution au moyen d'un dispositif imperméable qui ne laisse pas passer ou qui laisse passer en quantité réduite la forme anionique du métal de transition, lequel se trouve dans un état d'oxydation qui est plus élevé sous la forme anionique que sous la forme cationique. Ce procédé consiste en second lieu à appliquer un potentiel à la cellule afin de convertir les cations métalliques de l'anolyte à la forme anionique. La cellule électrochimique peut se présenter sous la forme (A). Une cellule similaire peut comporter une cellule tampon pourvue d'une membrane supplémentaire.
Patent CA-2341670-A1 (CA)
Title: Fibre optique en matiere plastique
Inventor: HEITMANN WALTER
IPC: G02B1/04
Filed: 1999-08-12
Abstract: L'invention concerne une fibre optique en matière plastique dont le coeur est constitué d'une matière plastique photoconductrice à faible atténuation et entouré d'une couche à faible atténuation d'un indice de diffraction plus petit et d'une couche extérieure absorbant plus fortement la lumière. Selon l'invention, le coeur de la fibre, qui est constitué d'une matière plastique photoconductrice à faible atténuation, peut aussi être entouré d'une couche absorbant la lumière.
Patent CA-2349597-A1 (CA)
Inventor: DIKUN JURY VENIAMINOVICH
IPC: C23C24/04
Filed: 1999-07-29
Abstract: The purpose of the present invention is to improve the physical and chemical properties of a coating made of various powdered materials and to improve the application process efficiency. This method is characterised in that, before supplying a gas-powder mixture to the acceleration nozzle, said mixture is previously accelerated to a predetermined speed using a gas which is inert relative to the starting powdered material, and further fed into the core of the working-gas acceleration flow. The device includes a pulverisation unit in the form of a supersonic acceleration nozzle comprising a linear section, at its outlet, which turns into a curved-surface section. The device also includes an intermediate supersonic nozzle which is arranged coaxially relative to the acceleration nozzle and is capable of reciprocating movement in the subsonic portion thereof.
Patent CA-2350582-A1 (CA)
Title: Catalytic dehydrodechlorination of ethylene dichloride
Inventor: ZONGCHAO ZHANG
IPC: C07C17/25
Filed: 1999-10-26
Abstract: Ethylene dichloride can be dehydrodechlorinated to vinyl chloride by heating the ethylene dichloride at a temperature of not less than about 250~C in the presence of hydrogen gas and a dehydrohalogenation catalyst that comprises a noble metal on a carbon support.
Patent CA-2352371-A1 (CA)
Title: Support articule, amovible et ajustable
Inventor: LAFERRIERE CLAUDE
IPC: B60N3/00
Filed: 2001-07-05
Abstract: Support articulé amovible et ajustable s'installant sur le volant d'un véhicule et permettant d'utiliser un ordinateur portatif, d'écrire, de manger, etc. Le support est muni de pentures à piano et d'ancrages qui permettent d'adapter le support à la grande majorité des volants. Un système de tiges de soutien est prévu afin d'éviter  que le support ne soit instable lorsqu'il est utilisé. Ce support articulé, amovibl e et ajustable est facile à installer et à enlever. En quelques secondes, il peut être ajus té afin d'obtenir la position adéquate pour l'utilisation que la personne veut en faire.
Patent CA-2352685-A1 (CA)
Inventor: VIJN JAN PIETER
IPC: C04B22/10
Filed: 2001-07-09
Abstract: Delayed thixotropic cement compositions and methods of cementing in subterranean zones penetrated by well bores are provided. The novel cement compositions are basically comprised of a hydraulic cement, sufficient water to form a slurry and a water soluble delayed thixotropy imparting additive selected from the group consisting of carbonic acid and alkali metal carbonates.
Patent CA-2354805-A1 (CA)
Inventor: GARLOCH DUANE DAVID
IPC: F04D29/62
Filed: 2001-08-07
Abstract: An inducer fan assembly for use in a multi-poise furnace that includes an inducer housing having a fan opening in one wall through which the inducer fan can be inserted into the housings. The fan opening is closed in assembly by a cover. The motor is secured to a support plate having three circumferentially spaced tabs thereon that are bent outwardly at an angle of about 45° from the plane of the plate. Resilient vibration isolators are mounted in each tab and are arranged to act against receiving brackets mounted on the cover to dampen vibration produced by the motor.
Patent CA-2358533-A1 (CA)
Inventor: AKIN HAKAN
IPC: G06F17/30
Filed: 2000-01-14
Abstract: A method of displaying a data structure (e.g., web site) having a base node (e.g., an index web page) and a number of child nodes (e.g., linked web pages) commences with a spider thread building a distinct memory map for each parent/child node family within the parent/child structure (293). A wire frame view is then defined for the relevant child nodes (294). A number of links are then displayed, each link connecting the graphic representation associated with the base node with a segment of the surface of the multi-dimensional framework that has been assigned to a child node (296).
Patent CA-2362723-A1 (CA)
Title: Selective removal of nitrogen from natural gas by pressure swing adsorption
Inventor: KUZNICKI STEVEN M
IPC: B01D53/047
Filed: 2000-03-08
Abstract: A pressure swing adsorption process for the separation of nitrogen from a mixture of the same with methane, utilizing two separate PSA stages, one containing a nitrogen selective crystalline zeolite, and the second containing a methane selective adsorbent.
Patent CA-2363669-A1 (CA)
Title: Turbine interstage sealing ring
Inventor: TOBORG STEVEN MILO
IPC: F01D5/08
Filed: 2001-11-22
Abstract: A unitary interstage sealing ring (112) for bridging and sealing the space between adjacent turbine rotor disks (52, 60) in a multi-stage turbine (50). The sealing ring (112) serves to confine relatively cool air conveyed to the turbine (50) so the cooling air flows into the turbine blades (58, 98) for maintaining the blades at a desired temperature. The sealing ring (112) includes a disk-shaped body member (114) that includes a pair of axially-- spaced, radially-extending arms (118, 122) that terminate in respective seal teeth (126, 128) for engagement with a stationary annular sealing member (130). Each of the radial arms (118, 122) includes an outwardly-extending axial arm (120, 124) that terminates in a disk engagement member (148, 158) for sealing engagement with the face of an adjacent turbine disk (52, 60) to confine cooling air within the space (144) between the adjacent turbine disks (52, 60). Additionally, one of the disk engagement members (148, 158) includes at least one projection (152, 236) that contacts a respective rotor disk (52, 60) to limit relative rotation between the sealing ring (112, 230) and the turbine (50).
Patent CA-2365859-A1 (CA)
Title: 4-cyano-3-hydroxy butanoyl hydrazines, derivatives and process for the preparation thereof
Inventor: WANG GUIJUN
IPC: C07C255/20
Filed: 2000-04-25
Abstract: Novel 4-cyano-3-hydroxybutanoyl hydrazides (10), particularlyR-chiral intermediates are described. The intermediates are useful in preparing (R)-3-hydroxy-4-trimethylaminobutyric acid (L-carnitine) and R-4-amino-3-hydroxybutyric acid (GABOB) and chiral chemical intermediates which are medically useful.
Patent CA-2366383-A1 (CA)
Title: A helically wound guidewire
Inventor: KLINT HENRIK SONDERSKOV
IPC: A61M/
Filed: 2000-03-29
Abstract: A guidewire comprising a distal end (2), a shaft portion (4) and a proximal end (3), wherein the shaft portion comprises a single helically wound, ribbon-shaped wire (7) having a pitch angle a in the range of 35° to 76°, and said helical wound wire preferably has a smaller total outer diameter at the distal end than at its proximal end.
Patent CA-2366794-A1 (CA)
Inventor: BUCKLEY JAMES THOMAS
IPC: A61K38/16
Filed: 2000-04-10
Abstract: Pour diminuer l'infectivité d'une population de virus enveloppés qui comprennent une protéine ancrée à glycosylphosphatidylinositol dans leur membrane, on utilise certaines toxines telles que l'aérolysine, la toxine alpha de Clostridium septicum ou l'entérolobine. Les toxines qui se lient à des protéines ancrées à glycosylphosphatidylinositol inactivent ces virus. Ces toxines peuvent servir à produire des vaccins viraux atténués, à purger des produits sanguins, des cellules ou des tissus desdits virus et à détecter lesdits virus dans des échantillons.
Patent CA-2368696-A1 (CA)
Title: Processor based strobe with feedback
Inventor: AUSTIN DANIEL J
IPC: H05B41/285
Filed: 2002-01-21
Abstract: Strobe control circuitry combines several approaches to limit in-rush current. One circuit limits initial circuit response to an applied voltage that has been switched from an inactive to an active state. Other circuitry switches from a high input impedance state to a low input impedance state a predetermined period of time after the applied voltage has switched to an active state.
Patent CA-2369306-A1 (CA)
Title: Drive assembly for a covering of an architectural opening
Inventor: WELVAADT JOCHEM
IPC: E04F10/02
Filed: 2002-01-30
Abstract: The invention relates to a drive assembly (45, 46, 52) for a covering of an architectural opening, comprising a motor drive (52), an accumulator (54) connected to the motor drive, a power source (45) and an electrical circuit (55) connecting the power source to the accumulator. The electrical circuit comprises a step-up converter. Preferably, the step-up converter comprises an input terminal (11) connected to the power source (45), and an output terminal (12) with a supply voltage, connected to the accumulator (54), the voltage converting circuit (2) having: - an input terminal (11) for connection to a varying voltage or current source, and an output terminal (12) with a supply voltage, - an inductive element (5) being with a first terminal connected to the input terminal and with a second terminal to a capacitive element (8) and to the output terminal (12), the capacitive element (8) being with one terminal connected to a reference voltage (9), - a first switch (6) being with a first terminal connected to the second terminal of the inductive element (5), and with a second terminal to the reference voltage (9), the first switch (6) comprising a gate electrode (31) for opening and closing of the switch when a control voltage of a first level is applied to the gate, - an oscillator (13) comprising a power input (14) connected to the output terminal (12), a start-up output (15) connected to the gate electrode (31) of the first switch (6) for supplying a pulse-like signal to the gate electrode (31)and an oscillator output (16).