baber/WOPTO huggingface dataset:
Patent CA-2256451-C (CA)
Title: A method and a device for the purification of fluids
Inventor: STORNES SVEIN
IPC: C02F5/00
Filed: 1997-06-02
Granted: 2007-12-11
Abstract: A method and a plant for purification and other treatment of circulating water in water-based heating/cooling plants, district heating plants etc. The water is lead into the upper area of a tank (10) containing a "stack of layers" comprising material layers (44, 46, 48, 50, 52, 54) of granulated filtration materials and chemical reaction materials, in which the densities of the layers increase by the layer downwards, whereby treated water is let out at the lower area of the tank (10) and is returned to the water-based plant. The individual granulated materials of such a stack of layers may be washed clean of sludge and corrosion particles etc. by directing a water flow in the upward direction from the bottom of the tank (10). The individual granulated filtration/reaction materials as the backwashing is finished will settle - because of their mutually differing density values - into their respective layers (44, 46, 48, 50, 52, 54) at the original levels.
Patent CA-2256686-C (CA)
Title: Multicomponent analysis method including the determination of a statistical confidence interval
Inventor: SHARAF MUHAMMAD A
IPC: G06F17/00
Filed: 1997-05-15
Granted: 2003-01-21
Abstract: A signal processing method in a processor is provided for performing a multicomponent analysis of a signal resulting from a spectral response of a mixture comprising a plurality of spectrally resolvable molecular species. The method provides both a determination of a concentration estimate and a statistical confidence interval for each species. In the method, a data vector d is received from a multichannel detector, data vector d having a length nc, nc being the number of detector channels being monitored. A calibration matrix K having nc rows and np columns is provided wherein nc is larger than np, np being the number of spectrally resolvable molecular species. Next, a concentration estimate vector c having length np is determined. Finally, a confidence interval CIi for each of the elements of the concentration estimate vector is determined according to the expression CIi = ci ~  (varcovar(cii))1/2Q(cl, nf) where Q is the critical value of a statistical distribution for a given level of confidence, cl, and a given number of degrees of freedom nf where nf = nc-np. The invention further includes a program storage device embodying the method; a DNA sequencing process employing the method; and, an apparatus for carrying out the method.
Patent CA-2258134-C (CA)
Inventor: HALLILEY ALISTAIR G
IPC: B24B45/00
Filed: 1999-01-06
Granted: 2003-07-29
Abstract: Locking devices for attaching an abrasive disk to a grinder are provided by a backup pad and lock nut combination wherein the mounting aperture of the backup pad is shaped to correspond to the exterior surface of the barrel of the lock nut, which is provided with at least two planar surfaces.      This is particularly useful in securing correct alignment where the backup pad is intended to support an abrasive disk having a specific configuration that requires the disk and the backup pad to be aligned in a specific way.
Patent CA-2258431-C (CA)
Inventor: HIRATSUKA SEIICHI
IPC: A61B5/117
Filed: 1999-01-13
Granted: 2002-08-13
Abstract: There is disclosed a method of registering palm imprints of individuals to be identified to authenticate the individuals. Each palm imprint is divided into parts having regions with predetermined positions and sizes.      Feature points are extracted from the parts of the imprint.      The obtained feature information is registered as information for identity of individuals.
Patent CA-2260440-C (CA)
Title: Systeme et methode automatiques d'imagerie par faisceau ionique focalise
Inventor: BRETON PIERRETTE
IPC: G01N23/04
Filed: 1999-01-28
Granted: 2007-08-28
Abstract: Une méthode d'imagerie comportant un circuit intégré muni d'un faisceau ionique focalisé est présentée. Selon cette méthode, l'image du circuit intégré est produite à l'aide d'un faisceau ionique focalisé. L'information relative au circuit est ensuite extraite sans traitement. Dans une autre forme, une méthode et un système permettent d'obtenir l'image d'un circuit intégré entier automatiquement sans retirer le circuit intégré du système d'imagerie et nécessitent l'intervention minimale de l'opérateur. La méthode s'appuie sur l'utilisation d'un faisceau ionique focalisé pour produire une image d'une couche exposée d'un circuit intégré puis graver une portion de la couche exposée sur place. Le processus d'imagerie et de gravure est répété jusqu'à l'obtention de la représentation du circuit intégré entier. Un processeur est utilisé pour assembler toutes les couches et produire une topographie tridimensionnelle du circuit intégré. En raison des relations connues entre les couches, la présentation des données en mosaïque est facilitée et la topographie finale est plus fiable que celle produite par les méthodes informatiques courantes.
Patent CA-2261787-C (CA)
Inventor: FAOUR JOAQUINA
IPC: A61K9/52
Filed: 1998-05-29
Granted: 2006-11-14
Abstract: The present invention provides a simple and improved multi-layered osmotic device (1) that is capable of delivering a first active agent in an outer lamina (2) to one environment of use and a second active agent in the core (5) to another environment of use. Particular embodiments of the invention provide osmotic devices in which the first and second active agents are similar or dissimilar. An erodible polymer coat (3) between an internal semipermeable membrane (4) and a second active agent-containing external coat (2) comprises poly(vinylpyrrolidone)-(vinyl acetate) copolymer. This particular erodible polymer results in an improved multi-layered osmotic device possessing advantages over related devices known in the art. The acti ve agent in the core (5) is delivered through a pore (6) containing an erodible plug (7). The osmotic device (1) can be coated by a final finish coat (8).
Patent CA-2262281-C (CA)
Title: Edge compacting device for an asphalt paver
Inventor: EMERSON DAVID
IPC: E01C19/48
Filed: 1999-02-15
Granted: 2008-10-21
Abstract: An asphalt paver for applying a mat of asphalt material as the paver is moved along a path includes a frame, a compacting screed having rotatable vibrator shaft, and an edge compactor attached to the outer end of the compacting screed. The edge compactor includes a pivoting nose piece or tamping bar having an outer end generally overlying an edge portion of the asphalt mat, a rotatable shaft connected to the vibrator shaft, and a rod eccentrically mounted to the rotatable shaft and secured to the tamping bar outer end for pivoting the tamping bar in response to rotation of the rotatable shaft. The oscillating movement of the tamping bar over the outer edge of the asphalt mat compacts the edge of the asphalt mat as the paver is moved along the path.
Patent CA-2265323-C (CA)
Inventor: HINTON DAVID R
IPC: B60K17/04
Filed: 1999-03-15
Granted: 2007-05-01
Abstract: A wheel assembly for a work machine, such as a mining dump truck, comprises a rotatable wheel having inboard and outboard rims mounted thereto. The outboard rim is mounted to a segmented rim-mounting flange which is secured to the inboard side of a flange projecting from the wheel. A final drive adapter is secured to the outboard end of the wheel opposite the segmented rim mounted flange. The segmented mounting flange permits the use of a larger final drive ring gear than in known wheel assemblies.      Moreover, because the mounting flange is segmented, it can be fastened to the wheel inboard of the gear reduction housing, which permits the final drive assembly to be serviced without removal of the outboard rim from the wheel. Related methods are also disclosed.
Patent CA-2267058-C (CA)
Title: Preparation of sulphonic fluorinated polymer solutions
Inventor: MACCONE PATRIZIA
IPC: C08F214/26
Filed: 1999-03-29
Granted: 2009-02-03
Abstract: A process for preparing a solution and/or dispersion containing sulphonic (per)fluorinated ionomers having -SO3M functional groups, wherein M is selected from H, Li, Na, K, NR4 (R equal to or different from each other are selected from H, CH3, C2H5) , characterized in that it dissolves the above defined ionomers at a temperature comprised between the room temperature and about 150°C, in a monophasic ternary mixture essentially constituted by water, by a C1-C4 alcohol and by a fluoro(poly)oxyalkylene having one hydrogen atom in at least a fluorinated end group; the dispersed polymer particle sizes are in the range 30-100 nm.
Patent CA-2272804-C (CA)
Title: Heat exchanger with dimpled bypass channel
Inventor: CHEONG ALEX S
IPC: F28F3/08
Filed: 1999-05-28
Granted: 2004-07-20
Abstract: A heat exchanger is disclosed having a plurality of stacked plate pairs or tubes, each having a predetermined internal cold flow resistance. A bypass conduit is included in the stack of plate pairs or tubes. The bypass conduit includes a central row of spaced-apart, mating dimples defining longitudinal flow channels on either side of the dimples for bypass flow through the bypass conduit under cold flow conditions. The longitudinal flow channels have a height and width such that the cold flow resistance therethrough is less than the cold flow resistance through the stacked plate pairs or tubes. In normal or hot flow conditions, the dimples create flow resistance by forcing the fluid flowing through the bypass conduit to change velocity and direction. This forces more oil to flow through the stacked plate pairs or tubes increasing heat transfer performance.
Patent CA-2277512-C (CA)
Inventor: DOMPAS JOHN
IPC: B22D11/06
Filed: 1999-07-16
Granted: 2005-03-29
Abstract: Edge-dam blocks assembled with their upstream faces in keyed mating interengagement with downstream faces of adjacent blocks form an endless edge dam revolvable in a preselected path for defining a boundary of a moving-mold casting region. The edge dam keeps molten metal in the casting region. Upstream and downstream faces of adjacent blocks have mutually complementary shapes for minimizing intrusion of molten metal between abutting blocks. Keying engagement between abutting blocks prevents relative translational slippage of blocks toward or away from molten metal. An abuttable face on each block has at least one protrusion such as an integral elongated key extending perpendicularly to a casting belt associated with the casting region, or the protrusion includes two round pins having projecting tapered ends. Another abuttable face has a recess such as a keyway for snugly receiving a key on an adjacent block or has two tapered recesses for snugly receiving two tapered projections of an adjacent block.      External edges and root fillets of keys (and shoulders and root fillets of keyways) are radiused with radii in a range between about 1.2 and about 3 millimeters. Blocks' lower surfaces are shown having slots for receiving a tension member. A key's lower end may be undercut near the slot for relieving stress concentration. A pair of parallel undercut fillets are shown extending along opposite sides of a key. They have a radius in a range from about 3 to about 5 millimeters.
Patent CA-2279815-C (CA)
Title: Process for producing an alkylene glycol
Inventor: NAGATA KOUICHI
IPC: C07C31/20
Filed: 1999-08-09
Granted: 2007-12-18
Abstract: A process for producing an alkylene glycol, which is a continuous process for producing an alkylene glycol comprising the following steps (1) to (4), wherein the hydrolysis step (2) is divided into a plurality of stages, and the hydrolysis is carried out so that the water concentration in a reaction stage wherein the conversion of the alkylene carbonate is at least 60%, is from 15 to 30 wt%: (1) a carbonating step of reacting an alkylene oxide with carbon dioxide gas in the presence of a carbonating catalyst to form a reaction solution containing an alkylene carbonate, (2) a hydrolysis step of hydrolyzing the reaction solution obtained in step (1) while releasing carbon dioxide gas, to form an aqueous alkylene glycol solution, (3) a distillation step of distilling the aqueous alkylene glycol solution to obtain at least a dehydrated alkylene glycol and a solution containing the carbonating catalyst, and (4) a recycling step of supplying the solution containing the carbonating catalyst to the carbonating step (1).
Patent CA-2284669-C (CA)
Inventor: GILES RICHARD
IPC: C01F7/782
Filed: 1998-03-26
Granted: 2008-03-11
Abstract: Cette invention a trait à des compositions à base de dihydroxy aluminium sodium carbonate (DASC) qui, après avoir été incorporées à des solutions aqueuses forment des suspensions stables et non granuleuses. Elle concerne également des suspensions stables et non granuleuses renfermant lesdites compositions mélangées à des solutions aqueuses et porte, en outre, sur des procédés de production de ces suspensions consistant à mélanger les compositions à base de DASC à des solutions aqueuses. Elle porte enfin sur des procédés d'élaboration ces compositions à base de DASC.
Patent CA-2285176-C (CA)
Inventor: ISHIKAWA YOSHIHIRO
IPC: H04B7/005
Filed: 1999-01-28
Granted: 2004-02-17
Abstract: A decision is made as to whether a radio base station acting as an interference source is present in a macrocell or microcell, so that the interference from a mobile station transmitting at high power can be prevented in advance. The base station inserts its transmission power value of a forward broadcast channel into broadcast information. A newly installed base station C, receiving a forward frequency band, measures the received level of the broadcast channel, and captures the transmission power value. When the transmission power value is large, the threshold value is reduced (THRb), and when the transmission power value is small, the threshold value is increased (THRa). If the received level L is less than the threshold value, a decision is made that the channel is available. A propagation loss is calculated from the received level of the broadcast channel and the transmission power value acquired, and a decision is made that the channel is available, if the propagation loss is less than a certain value, and the received level is less than the threshold value.
Patent CA-2289682-C (CA)
Title: Partly retractable construction platform
Inventor: PRESTON JOHN CLEMENT
IPC: E04G3/18
Filed: 1998-05-15
Granted: 2006-12-05
Abstract: A construction platform comprising a stationary support structure (4) adapte d to be fixedly secured to the floor (10) of a building under construction and project from the edge (18) of the building to a predetermined maximum extent, and a movable desk (5) mounted on the stationary support (4) which may be extended as a cantilever therefro m or retracted into at least substantial registration therewith.
Patent CA-2290427-C (CA)
Inventor: WOOD STEPHEN J
IPC: F04C29/00
Filed: 1999-03-17
Granted: 2004-06-01
Abstract: A scroll-type fluid displacement apparatus including at least two scroll members, with each scroll member having a plate and a spiral involute extending from the plate. The spiral involutes mesh to define fluid voids between the scroll members that become smaller towards the center of the scroll members. The apparatus also includes an eccentric crank mechanism having an elongated shaft with an eccentric portion. The elongated shaft is connected at one end to a motor and at anoth er end to a machine, while the eccentric portion is rotatably received by one of the scroll members such that the scroll members will orbi t with respect to one another as the shaft is turned by the motor. The apparatus also includes at least one eccentric guide for assistin g the eccentric crank mechanism in retaining the scroll members in an orbiting relationship. According to one embodiment, the eccentric guid e comprises a second eccentric crank mechanism having an elongated shaft with an eccentric portion rotatably received by one of the scroll members. According to another embodiment, the elongated shaft of the second eccentric crank mechanism is connected at one end to a motor and at another end to a machine.
Patent CA-2294207-C (CA)
Inventor: YAMAZAKI TSUTOMU
IPC: A61K31/353
Filed: 1999-04-19
Granted: 2004-09-21
Abstract: Anti-Chlamydia agents characterized by containing tea polyphenol; and a meth od for preventing or treating Chlamydia infection characterized by administering a composition containing a therapeutically efficacious amount of tea polyphenol to the affected part of a patient. The tea polyphenol to be used herein is a component of tea which is a natural product having been widely taken as a drink from ancient times. Thus, tea suffers no problem in safety. Therefore, the tea polyphenol also has no harmful side effect on the human body and is free from any fear of the appearance of a resistant strain.
Patent CA-2296078-C (CA)
Inventor: SAYEGH SOHEIL I
IPC: H04J4/00
Filed: 1998-07-15
Granted: 2003-04-08
Abstract: An apparatus for providing bandwith on demand service in a wireless communication system having at least one user station, including a frequency  divider (370 and 380) for dividing a selected bandwith into a plurality of frequency subdivisions, means for assigning (370 and 380) a first number of frequency subdivisions to the individual user station having a first total bandwidth commensurate with the volume of transmission traffic, means for changing (370 and 380) the first number to a second number having a second total bandwidth commensurate with the change of the volume of transmission traffic.
Patent CA-2299950-C (CA)
Title: Oral adhesive sheet and oral adhesive preparation
Inventor: SAITO JUNICHI
IPC: A61K45/06
Filed: 2000-02-29
Granted: 2010-09-21
Abstract: An oral adhesive preparation has a substrate and a pressure-sensitive adhesive layer provided on at least one surface of the substrate, in which the pressure-sensitive adhesive layer contains a medicine, and is substantially insoluble in water or absorbs substantially no water. Further, an oral adhesive sheet comprising a separator release-treated on one or both surfaces thereof and a plurality of sections for application to oral mucous membrane mounted on at least one surface of the separator in a specified 2 to 5 by 2 to 5 arrangement with a specified proportion of a minimum inner diameter, Dp, of an incircle passing a center of gravity, W, of a section to a shortest distance, Di, of an adjacent section is 1. 5 to 6. The substrate is preferably cloth such as non-woven fabric. Sections containing a local anesthetic can be used in surface anesthesia in dentistry.
Patent CA-2304251-C (CA)
Title: Systeme et procede servant a creer une grammaire de langage
Inventor: BOUZID AHMED TWEFIK
IPC: G06F17/27
Filed: 1998-09-17
Granted: 2005-04-26
Abstract: L'invention concerne un système de logiciel informatique permettant au réalisateur d'un système de commande vocale de créer une grammaire et un corpus afin de les mettre en application dans ce système. On utilise une interface de table et on entre des syntagmes de la grammaire dans des cellules de la table. Cette table comprend également des données symboliques correspondant à chaque énoncé valable. Quand la grammaire est définie, ce système de logiciel informatique traverse automatiquement la table afin d'énumérer tous les énoncés valables possibles de la grammaire. Cette traversée génère une liste (corpus) des énoncés valables et leurs symboles respectifs. On peut ensuite utiliser cette liste afin d'interpréter des énoncés vocaux pour un système de commande vocale. Ce système de logiciel informatique transcrit également les règles grammaticales trouvées dans la table en un format compatible avec une variété de reconnaisseurs vocaux supportés disponibles dans le commerce.
Patent CA-2305194-C (CA)
Title: Resin-treated mercerized fibers and products thereof
Inventor: BELL WHITTEN R
IPC: D21C9/00
Filed: 1998-09-29
Granted: 2004-08-17
Abstract: This invention relates to the process of manufacture of resin treated mercerized cellulose fibers and fibrous products prepared therefrom and is directed particularly to a method of improving permeability and bulki ng properties and reducing water retention value (WRV) of a conventional high permeability bulk pulp. The invention also includes the improved cellulose fibers, cellulosic sheet materials containing said fibers, and products therefrom (such as automotive oil and air filters) .
Patent CA-2309356-C (CA)
Inventor: BEELEY NIGEL ROBERT ARNOLD
IPC: A61P3/10
Filed: 1998-11-13
Granted: 2010-09-21
Abstract: L'invention concerne de nouveaux composés agonistes de l'exendine. Ces composés sont utilisés dans le traitement du diabète et des états qui seraient améliorés par une baisse de la glycémie ou un retardement et/ou un ralentissement de la vidange gastrique.
Patent CA-2313153-C (CA)
Title: Method and plant for rolling multiple billets fed from a billet-heating furnace set upstream of a roll train
Inventor: POMETTO VIRGINIO
IPC: B21B1/04
Filed: 2000-06-29
Granted: 2010-02-09
Abstract: The invention regards a method for rolling billets fed from a billet-heating furnace (10) set upstream of a roll train, in which, between the furnace (10) and a first stand (11) of the roll train is provided a space for transfer of the billets coming out of the furnace. In the space between the furnace (10) and the stand (11) at least two billets (15, 14) are welded together and subsequently introduced into said stand (11).
Patent CA-2314464-C (CA)
Inventor: PETERSON WAYNE C
IPC: B42D15/08
Filed: 2000-07-25
Granted: 2007-07-17
Abstract: A pocket containing business form, an intermediate for producing the form, and method of producing the business form, provide optimum securement of the panels of the form together with adhesive by providing the adhesive at and along the side edges rather than merely adjacent the side edges. The form may be produced from a web or sheet by moving it in a first direction, applying adhesive patterns (preferably pressure activated cohesive) to the web or sheet along the first direction adjacent but spaced from first and second side edges and at and along a plurality of centerlines between the side edges, and slitting or cutting the web or sheet along the first direction at the adhesive patterns so that adhesive is provided on both sides of each cut or slit, to provide a plurality of forms (e.g. four forms) with form side edges having adhesive at and along the form side edges. If in a web configuration the web is ultimately formed into a sheet, and the sheet is folded (e.g. eccentrically Z-folded) to form a pocket and the form is sealed in the folded configuration by activating the adhesive.
Patent CA-2314666-C (CA)
Inventor: OLSON GREGORY D
IPC: H04M3/18
Filed: 2000-07-26
Granted: 2008-07-08
Abstract: A digital signal line transmission system with reduced echo is provided. A communication line is between a carrier and a user terminal. A bridgetap line has a first end connected to the communication line. An adaptor having a capacitance is connected to the bridgetap line. The adaptor reduces the effect of echo from the bridgetap line on a rate of data transmission to the user terminal over the communication line.
Patent CA-2324181-C (CA)
Inventor: REBET SYLVAIN
IPC: B26D7/18
Filed: 2000-10-25
Granted: 2004-08-10
Abstract: A presetting table for preparing a system of converting tools in a stripping station of a converting press positions the following face to face, in a position simulating centring along the machine axis and positioning at the first rule: the stripper-holder plate of an upper stripping die, a central stripping board and a replica of a pull-out frame carrying telescopic pins. The upper stripping die is prepared by using the central stripping board as a template.