baber/WOPTO huggingface dataset:
Patent CA-2246650-A1 (CA)
Inventor: KOUTSOFIOS ELEFTERIOS
IPC: G06F17/30
Filed: 1997-02-18
Abstract: The present invention is a system for exploring changes to World Wide Web pages and Web structure or other repository that supports recursive document comparison. The user may explore the differences between documents with respect to two dates. Differences between documents are computed automatically and summarized in a new HTML page, and differences in link structure are shown via graphical representations. The present invention is the combination of two tools that complement one another. The AT & T Internet Difference Engine (AIDE) is a tool for tracking and viewing modification to World Wide Web pages, which has been extended to support recursive tracking of documents;  Ciao is graphical navigator that allow users to query and browse structural connections embedded in a document repository. The union of these tools lets users get information on the evolution of documents of interest (both textually and graphically), browse the differences interactively, and dynamically modify the set of documents with which they interact.
Patent CA-2251227-A1 (CA)
Inventor: NOZUE YASUHIKO
IPC: A61M1/28
Filed: 1997-04-11
Abstract: This invention has to do with triple lumen catheters (1), that are used for blood dialysis, for monitoring of temporary circulatory fluids and of central venal pressure (CVP), etc., and more specifically has to do with the structure of triple lumen catheters (1), that are used to allow easy blood extraction during dialysis.
Patent CA-2251930-A1 (CA)
Title: Biphenylamido derivatives as melatonergic agents
Inventor: EPPERSON JAMES R
IPC: C07C275/32
Filed: 1997-04-15
Abstract: There is provided novel biphenylamido derivatives of formula (I) wherein Z is (II) and Y is H or Z is H and Y is (III); n is 0 or 1; R is C1-6 alkyl; R1 is C1-3 alkyl, C3-6 cycloalkyl, C1-4 alkoxymethyl, or NHR2; and R2 is C1-3 alkyl or cyclopropyl, which are melatonergic agents and are useful in the treatment of circadian rhythm-related disorders and other conditions affected by melatonin activity.
Patent CA-2252530-A1 (CA)
Inventor: HOCHBEIN DAVID E
IPC: G01B5/06
Filed: 1997-04-23
Abstract: A method and apparatus (10) for measuring the thickness of an article (12) comprises providing a table (18) having a plurality of thickness references (30) at a first end (36) and with openings (22) for access to the lower surface of the article (12) on the table. A plurality of pairs of opposed sensors are mounted on a carriage (44) that extends across the width of the table (18) and is adapted for movement in the longitudinal direction of the table. One member (46) of each pair of sensors is above the table opposite a second member (48) that is below. The carriage (18) is positioned at a first location where each pair of sensors measures the thickness of the thickness reference with which it is aligned. The carriage then is stepwise moved to one or more subsequent locations to measure the thickness of the article at such locations.
Patent CA-2256682-A1 (CA)
Title: A sulky
Inventor: BERGLING TOMAS
IPC: B62C1/08
Filed: 1997-03-13
Abstract: A sulky (1) is adapted to be connected to and to be drawn by a horse, and this comprises an arrangement (3) adapted to receive a driver in a sitting position with the feet on a substantially lower level than the seat. This arrangement has means (7, 8, 10) adapted to support at least the legs of the driver in this position.
Patent CA-2257035-A1 (CA)
Title: Method and network component for switching low bit rate connections between input modules and output modules in a communication network
Inventor: KLUG ANDREAS
IPC: H04L49/111
Filed: 1998-12-21
Abstract: In a method and network component of a communications network for switching connections of low bit rate between input modules and output modules, the input modules and the output modules form a first switching level, and an ATM switching stage arranged between the input modules and the output modules forms a second switching level. In the first switching level, a number of low bit rate connections at the input module, which are to be transmitted to the same output module, are respectively merged by the input module into at least one ATM connection. In the second switching level, the switching through of the ATM connections for transmitting data in ATM cells ensues by the ATM switching stage. Subsequently, in the first switching level, the ATM connections which have been switched through are converted by the output module into the low bit rate connections. The combined switching in two switching levels represents an especially economical solution for functions specific to mobile radio and switching applications dealing with low bitrate traffic, by simultaneously assuring an acceptable speech quality with good exploitation of the ATM bandwidth.
Patent CA-2257053-A1 (CA)
Inventor: UEMURA SHIGEHIRO
IPC: B26D3/30
Filed: 1998-12-22
Abstract: The food holder has two vertical plates, mounted on a base vertically and parallel to each other. This creates a gap between the plates where food is held. Knife guides with vertically extending guide slits are provided at both ends of the gap. The two vertical plates are connected to the base in a manner allowing their translational motion in directions which can change the gap size.Additionally, a centering mechanism insures the distance moved by each plate is equal.
Patent CA-2257349-A1 (CA)
Title: Recepteur de signaux de satellites avec controle d'integrite et exclusion d'axes defectueux
Inventor: ARETHENS JEAN-PIERRE
IPC: G01S1/00
Filed: 1997-06-03
Abstract: L'invention concerne les récepteurs de positionnement par satellite (GPS). Pour améliorer la fiabilité de la mesure, on tente de ne pas prendre en compte dans une mesure de position les satellites qui fourniraient des mesures défectueuses, c'est-à-dire des mesures divergentes par rapport aux mesures fournies par les autres satellites de la constellation utilisée à un moment donné. L'invention propose une solution pour recalculer plus rapidement la position en éliminant les données provenant d'un satellite défectueux: les moyens de calcul du vecteur de position X à partir de n satellites comportent un processus d'itération à n étapes, la Jième étape faisant intervenir le Jième satellite; on recalcule une position X' n'utilisant que n-1 satellites à partir des n étapes déjà calculées, en rajoutant une (n+1)ième étape d'itération, utilisant les mesures du satellite défectueux de rang m, cette dernière étape étant légèrement différente des précédentes et la différence étant telle quel le résultat de calcul après cette (n+1)iéme étape soit identique à celui que donnerait une itération à n-1 étapes excluant le satellite divergent de rang m.
Patent CA-2258814-A1 (CA)
Title: Soft nitrile rubber formulation
Inventor: LIPINSKI TIMOTHY M
IPC: C08J5/02
Filed: 1997-06-19
Abstract: Nitrile rubber compositions, articles of manufacture made therefrom, and methods of making them, are disclosed. The nitrile rubber compositions of the invention are substantially free of zinc oxide, and have good strength and chemical resistance while being softer than many conventional nitrile rubbers. The invention provides articles of manufacture, including gloves, which are soft, yet strong, and can be economically manufactured.
Patent CA-2260891-A1 (CA)
Title: Syndiotactic/atactic block polyolefins, catalysts and processes for producing the same
Inventor: RAZAVI ABBAS
IPC: C08F10/00
Filed: 1997-07-10
Abstract: Metallocene catalysts useful for the preparation of syndiotactic/atactic block polyolefins have the general formula: R"(C4R'mC5C4R'n) XMeQ wherein X is a hetero-atom ligand with one or two lone pair electrons selected from the elements of Group VA or VIA which can be substituted or non-substituted; (C4Rm'C5C4R'n') is a fluorenyl or a symmetrically substituted fluorenyl or cyclopentadienyl ring; R' is hydrogen or hydrocarbyl radical having from 1-20 carbon atoms, a halogen, an alkoxy, and alkoxy alkyl or an alkylamino or alkylsilylo radical, each R' may be the same or different and m and n independently are 0, 1, 2, 3 or 4, with the proviso that the bilateraly symmetry is maintained; R" is a structural bridge between X and the (C4R'mC5C4R'n) ring to impart stereorigidity; Q is a hydrocarbyl radical having 1-20 carbon atoms or is a halogen; Me is a Group IIIB, IVB, VB, or VIB metal as positioned in the Periodic Table of Elements; and Me can be in any of its theoretically possible oxidation states. Olefin monomers (particularly propylene) polymerised using those catalysts to form syndiotactic/atactic block polymers of high molecular weight and comprising at least 70 % of syndiotactic triads.
Patent CA-2261162-A1 (CA)
Inventor: FIRESTONE RAYMOND A
IPC: A61K31/453
Filed: 1997-07-14
Abstract: Procédé de traitement de tumeurs hématologiques et de tumeurs solides, dont certains types de leucémies et de tumeurs métastasiques, ayant des besoins élevés en lipoprotéine de basse densité, à l'aide d'un agent dilapidant tel que l'inhibiteur de la protéine microsomale de transfert des triglycérides (MTP) pour réduire considérablement le taux sanguin de LDL. De plus, la présente invention concerne un procédé permettant de traiter des tumeurs des types susmentionnés ayant des besoins élevés en LDL, en particulier les tumeurs hématologiques telles que certaines leucémies, à l'aide d'un composé dilapidant destiné à éliminer pratiquement la LDL endogène, ledit procédé consistant ensuite à administrer un agent cytotoxique porté par de la LDL reconstituée.
Patent CA-2263779-A1 (CA)
Title: Method for using blood centrifugation device with movable optical reader
Inventor: THOMAS BRADLEY S
IPC: G01N15/04
Filed: 1999-03-01
Abstract: A centrifuge device that is used to centrifuge a fluid sample, such as a blood sample, to separate the fluid sample into its various component layers, and which is capable of measuring the length of the component layers to calculate cell counts for each layer. The centrifuge device includes a rotor assembly for rotating and thus centrifuging the fluid sample, and a movable optical reader device for reading the cell layers in the centrifuged sample. The centrifuge device is capable of accurately controlling the reading of the centrifuged sample based on the orientation of the rotor, so that the rotor can continue to rotate the centrifuged sample while the readings are being taken.
Patent CA-2264946-A1 (CA)
Inventor: SADLOWSKI EUGENE STEVEN
IPC: C11D3/386
Filed: 1997-09-10
Abstract: Automatic dishwashing detergent compositions comprising a nonionic surfactant having the formula: R1O[CH2CH(CH3)O]x[CH2CH2O]y[CH2CH(OH)R2] wherein R1 is a linear or branched, aliphatic hydrocarbon radical having from about 4 to about 18 carbon atoms including mixtures thereof; R2 is a linear or branched aliphatic hydrocarbon radical having from about 2 to about 26 carbon atoms including mixtures thereof; x is an integer having an average value of from 0.5 to about 1.5; and y is an integer having a value of at least about 15; employed in conjunction with a detersive enzyme such as amylase are provided.
Patent CA-2265575-A1 (CA)
Title: Systems and methods with identity verification by comparison and interpretation of skin patterns such as fingerprints
Inventor: THEBAUD LAWRENCE R
IPC: G07C9/00
Filed: 1997-09-08
Abstract: A sensor receives a print image from an authorized person (21) to form a template, and from a candidate (11) to form test data. Noise variance (12) is estimated from the test data as a function of position in the image, and used to weight the importance of comparison with the template at each position.  Test data are multilevel, and are bandpassed and normalized (13) and expressed as local sinusoids for comparison. A ridge spacing and direction map (28) of the template is stored as vector wavenumber fields, which are later used to refine comparison.  Global dilation (34) and also differential distortions (45) of the test image are estimated, and taken into account in the comparison. Comparison yields a test statistic (52) that is the ratio, or log of the ratio, of the likelihoods of obtaining the test image assuming that it respectively was, and was not, formed by an authorized user. The test statistic is compared with a threshold value, preselected for a desired level of certainty, to make the verification decision.
Patent CA-2270023-A1 (CA)
Inventor: BELLY ROBERT T
IPC: C12N9/50
Filed: 1999-04-27
Abstract: The present invention provides rapid and highly effective methods for extracting nucleic acids suitable for PCR amplification from tissue samples and paraffin-embedded tissue samples. Extraction is accomplished within a few minutes using a composition comprising a buffer, at least one nonionic surfactant, and a protease enzyme. The sample is then heated at alkaline pH and after a centrifugation step, the DNA is the supernatant can be used directly in known amplification methods, such as PCR.
Patent CA-2270198-A1 (CA)
Title: Mait-ball
Inventor: AUSSANT GILLES
IPC: A63B67/20
Filed: 1999-04-15
Abstract: - Il s'agit d'un nouveau sport de raquette. - C'est un sport individuel - Une raquette sans fond , à laquelle est fixée une balle reliée par un élastique d'au moins 2 mètres - Le jeu consiste à lancer la balle une première fois avec la main ,et par la suite de faire passer et repasser ,dans les deux sens ,à l' intérieur de la raquette seulement par le mouvement du bras du joueur. La balle doit toucher au sol à chaque extension maximum de l'élastique avant de revenir passer à l'intérieur du cadre de la raquette. -Ce jeu est très sécuritaire,et limita à son minimum la possibilité de développer un TENNIS ELBOW puisqu'il n'y a pas de contact avec la balle ,donc pas de coups violents encaissés par le bras et le coude du joueur.
Patent CA-2270204-A1 (CA)
Inventor: LABRECQUE FRANCOIS
IPC: E02F3/76
Filed: 1999-04-16
Abstract: La présente invention décrit une pelle motorisée montée sur touts systèmes mécanisés de propulsion sur chenille ou sur roue dont le moteur du système de propulsion actionne la pompe hydraulique qui asservi le vérin de la pelle, dont la pelle est composée d'une armature fixée sur le système de propulsion, du fond recourbé en forme de L, et l'ensemble pivote sous l'action du vérin hydraulique sur l'axe situé à l' avant de la pelle.
Patent CA-2270234-A1 (CA)
Title: Plastic composition
Inventor: WYKOFF ED
IPC: C08K3/26
Filed: 1997-11-07
Abstract: A plastic composition having incorporated copper is provided in accordance with the invention. The plastic material can be processed at low temperatures, readily absorbs water, and has good film forming properties. In particular, the plastic material is a polycaprolactone and the copper is derived from copper hydroxide and/or copper carbonate. The plastic material is useful for forming plant containers that promote a branched root structure.
Patent CA-2275158-A1 (CA)
Inventor: BOS MEINDERT
IPC: B01D65/02
Filed: 1999-06-17
Abstract: Device for filtering a liquid. The filter device is provided with at least two filter elements (8, 15) placed parallel to each other. A three-way cock (6, 13) is accommodated in the pipe (4, 5) to each filter element (8, 15) for connection of the inflow opening of each filter element (8, 15) to a mains system (3) for supplying the liquid with sufficient pressure to press the liquid through the filter device. The three-way cocks (6, 13) are mutually connected by a pipe (19). A drain (23) to a sewer is provided which has a closing device (21), which is connected to a branch point (26) of the pipe (19) via a pipe (20). A three-way cock (10, 17) is accommodated in the pipe (9, 16) of each filter element (8, 15) for connecting the outflow opening of each filter element (8, 15) to a mains system (12) of a user.      The three-way taps (10, 17) are mutually connected by a pipe (24).
Patent CA-2275397-A1 (CA)
Title: Method and device for the three-dimensional representation of information
Inventor: SCHWERDTNER ARMIN
IPC: G02B30/30
Filed: 1997-12-15
Abstract: The invention relates to an autostereoscopic method and a device for the three-dimensional representation of information according to a barrier-, lenticular-, prismatic masking- or similar method by means of flat-panel displays (liquid crystal, plasma, electroluminescent or other displays), for use in computer and video technology, games and advertisements, medical technology, virtual reality applications and other areas.  According to the invention, the image points are proportionally displaced to follow the lateral movement of an observer by shifting, for each coloured subpixel, the intensity of the coloured subpixels to horizontally adjacent coloured subpixels.  This method can be used with known devices. It becomes especially useful wehn, for each image point, n+1 adjacent coloured subpixels are triggered. Observers moving sideways continue to see the picture in almost consistently high quality.
Patent CA-2279742-A1 (CA)
Inventor: ARCHEY RICK L
IPC: C08L75/08
Filed: 1999-08-05
Abstract: A thermoplastic molding composition comprising a thermoplastic polyurethane and an olefinic copolymer is disclosed. The polyurethane component contains ether structural units and units derived from an aliphatic isocyanate. The molecular structure of the copolymer contains units derived from monomers containing olefinic unsaturation. The composition is characterized in the compatibility of its resinous components and in the improved mechanical properties.
Patent CA-2280302-A1 (CA)
Title: Low-resistance bipolar bridge circuit
Inventor: FRANCK FELIX
IPC: H02M7/5383
Filed: 1999-08-16
Abstract: The invention relates to optimized-loss base drive for a bipolar transistor bridge oscillator circuit, by using base series capacitors and by not having any non--reactive resistances in the base drive circuits.
Patent CA-2280548-A1 (CA)
Title: Feed arm
Inventor: CHAMBERS ERIC B
IPC: A01G23/095
Filed: 1999-08-20
Abstract: A feed arm (10) for use with a debarking and delimbing machine (100). The arm is constructed of a first section (12) and a second section (14) which are slidably connected together using an insert (16). The first section is securely mounted on the lower frame (114) of the machine adjacent the end opening (108) at the infeed side opening (110). The feed arm acts to move and guide the trees (150) to be debarked and delimbed into the flailing station (102) of the machine.
Patent CA-2280885-A1 (CA)
Inventor: POPP CAROLYN
IPC: F25D3/11
Filed: 1998-02-11
Abstract: A method and apparatus for the cleaning of the residue from the surface of a container (20) where the method comprises cooling the container (200) and residue adhered to the container surface to a low temperature, substantially embrittling the residue, fragmenting the residue, separating the residue from the surface of the container and removing the residue from the container. The container is placed in an enclosure (110) with an opening in the top of the enclosure (110) to permit access to the interior of the container (200) when a container lid (30) is removed. The system includes a rotating base (28) to turn the container to facilitate freezing and removal of the residue.
Patent CA-2281618-A1 (CA)
Inventor: SYMONS MICHAEL WINDSOR
IPC: C04B40/06
Filed: 1998-02-18
Abstract: A method of preparing a starting material for the subsequent manufacture of a finished product such as a board, from a feedstock selected from the group consisting of a lignocellulosic material, exfoliated vermiculite, expanded perlite or a mixture of two or three thereof, includes the steps of providing the feedstock in the form of substantially dry finely divided lignocellulosic fibres or substantially dry finely divided exfoliated vermiculite or expanded perlite particles or a mixture thereof; mixing the feedstock with a suitable amount of a thermosetting resin in finely divided dry powder form and a suitable amount of the hydraulic binder in finely divided dry powder form; and optionally subjecting this starting material to suitable conditions of temperature and pressure to cause the thermosetting resin to set to form a cohesive product thereafter, there may be provided to the cohesive product, water in an amount sufficient for the hydration of the hydraulic binder so that the hydraulic binder sets to form the finished product.
Patent CA-2283844-A1 (CA)
Title: Side conveyor disc including quick-change features
Inventor: BONNET HENRI
IPC: B65G47/53
Filed: 1998-04-29
Abstract: An automated conveyor sortation and item discharge system for sorting items of various sizes and weights to designated output destinations along a conveyor is provided. The system utilizes a discharge drum ejection mechanism mounted medially between a pair of parallel cog belt conveyors for ejecting an item such as a parcel laterally from the surface of the cog belt conveyors to an adjacent chute or slide. The discharge drum of the ejection mechanism is generally rectangular and defines convex opposing sides separated by the longer diameter of the drum. The convex sides of the discharge drum define flexible ridges for contacting an overlying parcel to be discharged from the surfaces of the cog belt conveyors. The flexible ridges enhance translation of the item or parcel by the discharge drum and serve to reduce noise caused by the impact of the discharge drum with the overlying parcel. A tapered discharge drum may be used to counteract rotation of the parcel during the discharge. A programmable controller may be provided to control the conveyor system and the discharge of items from the conveyor by the ejection mechanisms. The system is easy to repair and operates at high speeds at reduced noise levels. Also provided is a relatively flat disc intermediate a conveyor gap, which may be disassembled without disturbing the shaft to which the disc is mounted.
Patent CA-2285661-A1 (CA)
Inventor: MEYERS THEODORE W
IPC: B01D35/027
Filed: 1999-10-06
Abstract: An effluent filter for septic tanks and the like has substantially horizontal filtering levels provided in a stepped arrangement on both an inlet side and an outlet side of the effluent filter. The effluent filter provides an array of both substantially horizontal and vertical filtering slits through which effluent must pass to reach the outlet side and exit the septic system. Particles in the effluent must navigate tortuous paths created by the array of filtering slits and are trapped by these filtering slits, rather than being allowed to exit the septic system with the filtered effluent. The effluent filter is flexible and is further provided with integral external flexible wiper blades that serve to improve a friction fit between the effluent filter and an associated T baffle, sanitary T baffle, or other pipe component, as well as prevent particles in the effluent from circumventing the effluent filter. The longevity between cleanings of the effluent filter is increased by integral means in both the upper and lower filtering zones for effluent to circumvent individual filtering layers as they become clogged with debris or slimed over, while redirecting the effluent to other non-clogged filtering levels of the effluent filter.
Patent CA-2286896-A1 (CA)
Title: Method of treating organic contaminated materials
Inventor: CONAWAY LAWRENCE M
IPC: B09C1/00
Filed: 1998-02-26
Abstract: Friable solid material contaminated by oxidizable hydrocarbons such as petrochemicals is delivered into a system wherein the material is subjected to a series of physical and chemical reactions to separate the contaminants from the solid material. The system can receive solid material, separate coarse from fine material, and suspend the fine material in an aqueous medium. The aqueous suspension is subjected to temperature adjustment and the addition of an oxidizing agent, preferably hydrogen peroxide. The suspension is agitated for a period of time to allow the hydrocarbons to be oxidized. The gaseous oxidation products are stripped and separated from the residual solid material. The aqueous suspension of solid material and diluent are physically separated and the solid material may be returned to its point of origin after treatment. The process and apparatus for carrying out the process are preferably applied to soils containing hydrocarbon pollutants.