baber/WOPTO huggingface dataset:
Patent CA-2225130-C (CA)
Inventor: KASHI RAMANUJAN S
IPC: G06K9/62
Filed: 1997-12-18
Granted: 2001-05-29
Abstract: In a process of signature verification, an off-line test signature is compared to one or more on-line reference signatures. Dynamic data obtained fromthe reference signature or signatures may be used to improve the thinning of the test signature. Such data may also be used for segmenting the test signature and sequencing the resulting strokes. In some embodiments, the invention includes evaluating a dynamic error, based at least in part on such sequencing of the test signature. In some further embodiments, the invention includes producing a rendering of at least one on-line reference signature as a two-dimensional image, and evaluating a static error based, at least in part, on shape-matching between therendered image and the test signature.
Patent CA-2226948-C (CA)
Inventor: NEALE MARTIN GEOFFREY
IPC: C22B1/244
Filed: 1998-02-18
Granted: 2008-12-23
Abstract: A process of ore pelletisation is provided which comprises adding binder polymer to particulate ore and moisture and thereby forming an intimate mixture of ore, binder polymer and moisture, forming green pellets from the mixture and firing the pellets, and in the process a water-soluble treatment polymer is included in the intimate mixture in an amount of at least 0.001% and has a molecular weight 1,000 to 20,000 and is a synthetic polymer formed by polymerisation of water-soluble ethylenically unsaturated anionic monomer or water-soluble ethylenically unsaturated monomer blend containing at least 50 wt.% anionic monomer.
Patent CA-2231054-C (CA)
Inventor: LILJEDAHL HANS ARNE BERTIL
IPC: F24D3/12
Filed: 1996-09-17
Granted: 2006-12-19
Abstract: The present invention relates to a method and a device for cooling of premises, whereby a medium (14) in the summertime is cooled during the night by means of cool night air and is brought to cool a floor over crawl space (5) under the premises (2) for cooling of said premises (2) during the day. In order to eliminate, in this method and devic e, the risk for migration of moisture from the ground and upwards through the floor over crawl space (5), said floor over crawl space (5) and an underlying foundation (5a) are cooled so that at least upper portions of said floor over crawl space (5) reach a minimum temperatur e which substantially exceeds the temperature in the ground (4) under said foundation (5a).
Patent CA-2231171-C (CA)
Title: Diaphragme combine de chlore et d'alcali sans amiante
Inventor: GROSS JOHN W SR
IPC: C25B13/04
Filed: 1996-08-22
Granted: 2001-07-24
Abstract: L'invention a pour objet un diaphragme avec combinaison de chlore et d'alcali sans amiante, comprenant une ou plusieurs matières mouillables à l'eau et une ou plusieurs matières résistantes chimiquement. Ce diaphragme se caractérise par le fait que son rapport dit "de Macmullin" et son épaisseur moyenne sont tels que le produit qui en découle est compris entre 5 et 30 millimètres lorsque l'épaisseur moyenne du diaphragme est mesurée en millimètres, et que les dimensions moyennes des pores sont comprises entre 0,1 et 1 micron. De plus, parmi les matières résistant aux attaques chimiques qui le composent, au moins une, sinon plusieurs, est recouverte d'un revêtement adhésif durable, constitué d'un polymère contenant des ions, qui est fixé sur lesdites matières, donc au diaphragme.
Patent CA-2234348-C (CA)
Inventor: LOX EGBERT
IPC: C01F17/00
Filed: 1998-04-08
Granted: 2006-12-05
Abstract: The invention relates to an oxygen storing material with high thermal stability which contains cerium oxide and at least one stabiliser from the group praseodymium oxide, lanthanum oxide, yttrium oxide and neodymium oxide. The stabiliser(s) and optionally cerium oxide are present in highly dispersed form on the specific surface area of a high surface area support material from the group aluminium oxide, zirconium oxide, titanium oxide, silicon dioxide, cerium oxide and mixed oxides thereof, and the oxygen storing material still has a specific surface area of more than 20, preferably more than 30 m2/g, after calcination in air at 900°C for a period of 10 hours.
Patent CA-2236454-C (CA)
Title: Melangeur broyeur a auge oblique
Inventor: ARLT ROBERT ALOIS SR
IPC: A23L13/00
Filed: 1996-11-01
Granted: 2004-04-27
Abstract: L'invention porte sur un mélangeur broyeur à usage alimentaire conçu pour offrir des positions ergonomiques d'accès: au sommet de la trémie (16) pour le chargement, à l'orifice de décharge (62) du produit traité, et au point le plus profond de la trémie (16) à des fins de nettoyage. L'appareil comporte un bâti (14), une trémie (16), montée sur le bâti (14) et comprenant une paroi frontale (38), une paroi dorsale (40), et un fond incurvé (42), une auge (18) inclinée vers le haut (18) ménagée dans le fond (42) de la trémie (16), un orifice d'évacuation (62) ménagé dans la paroi frontale (38) à l'une des extrémités de l'auge (18), une vis sans fin (30) montée tournante dans l'auge (18) et transportant les matières alimentaires vers l'orifice de décharge (62), au moins une palette (22) assurant le mélange desdits aliments dans la trémie (16) montée sur un arbre tournant (26) dans la trémie (16), et un moteur (77) d'entraînement de la vis sans fin (30) fixé au bati (14) et sa transmission (76).
Patent CA-2243341-C (CA)
Title: Mobile apparatus and process for treating infectious waste
Inventor: WOLFGRAM CHARLIE
IPC: C02F1/76
Filed: 1997-01-16
Granted: 2004-10-26
Abstract: A mobile self-contained apparatus and process for grinding, grating, macerating, chemically disinfecting, and drying infectious waste material on-site is disclosed. A trailer (10) contains a hopper (27) and a system of grinder/graters, enclosed conveyors, drying and filter apparatus, and sources of power, chemical disinfectant, and fresh water.  Bagged infectious waste material in a cart (C) is lifted and dumped into a hopper (27), fed to a first grinder/grater (28 29), ground and grated into particles, immersed in a sodium hypochlorite (hypochlorous acid) chemical disinfectant solution, and conveyed by an enclosed upwardly inclined screw conveyor (34) to a second grinder/grater (43).   The particles are sprayed one or more times with the disinfectant and thoroughly mixed together as they are conveyed in the inclined conveyor (34) into the second grinder/grater (43) operating at a higher speed than the first and further ground, grated, and macerated into smaller particles, and air dried to produce a dry confetti-like material which is unrecognizable as to the source. The confetti-like material is conveyed by an enclosed horizontal screw conveyor (45) to an enclosed vertical screw conveyor (47) where it is passed upwardly to an enclosed rotatable discharge straw conveyor (50) which discharges the confetti-like material into a receptacle. The enclosed system operates under negative pressure produced by a suction fan which draws the air within the system through a hepa-filter (40) to remove chemical fumes, airborne dust, odors and bacteria.
Patent CA-2244121-C (CA)
Inventor: MALIN STEPHEN F
IPC: G01N21/359
Filed: 1997-01-31
Granted: 2003-07-15
Abstract: A method and apparatus are described for determining the concentration of an analyte present in a sample using multi-spectral analysis in the near infrared and mid-infrared ranges. Incident radiation containing a plurality of distinct, nonoverlapping regions of wavelengths in the range of approximately 1100 to 5000 nm is used to scan a sample. Diffusively reflected radiation emerging from the sample is detected, and a value indicative of the concentration of the analyte is obtained using an application of chemometrics techniques. Information obtained from each nonoverlapping region of wavelengths can be cross-correlated in order to remove background interferences.
Patent CA-2247956-C (CA)
Title: Omnidirectional barcode locator
Inventor: SKINGER GREGORY PHILIP
IPC: G06K7/10
Filed: 1997-04-11
Granted: 2002-01-15
Abstract: An efficient method and apparatus (20) for determining the location and approximate orientation of a barcode (33) on a substrate (14). The inventive method is preferably implemented by an omnidirectional barcode locator including an application specific integrated circuit that includes one or more field programmable gate arrays (FPGAs). The digital image is a one-bit (i.e., black/white) representation of a standard eight-bit grey scale video image produced by a CCD camera (16). The use of a one-bit digital video signal reduces the amount of mass storage memory required to store images of barcodes and facilitates the manipulation of the video signal by the application specific integrated circuit. The omnidirectional barcode locator (20) processes, in real-time, a digital video signal (19) defining a pixelized image (30) of a conveyor (12) carrying parcels (14a-14n) through the field of view of a CCD camera (16). The omnidirectional barcode locator (20) divides the video image (30) into a plurality of cells and produces two output signals, a cell barcode detection signal (21) and a cell barcode orientation signal (22), for each cell. A host computer (23) responds to a "true" cell barcode detection signal (21) for a cell by storing the portion of the video image (30) corresponding to the cell in a mass storage memory (24). The host computer (30) also stores a representation of the cell barcode orientation signal (22) for each cell in which the cell barcode indication signal (21) is "true". The omnidirectional barcode locator (20) thus allows the host computer (30) to store only those cells of the video image (30) that contain barcode data. The barcode data may then be provided to a barcode reader (23) for further processing.
Patent CA-2249713-C (CA)
Title: Injection method for administering microparticles containing active substances to plants
Inventor: KLOCZKO MALGORZATA
IPC: A01N25/00
Filed: 1997-02-15
Granted: 2005-01-11
Abstract: Described is a method of injecting into plants a free-flowing solid, semi-solid or liquid agent designed to give controlled release of at least one active substance, the method using pressure-operated equipment without needles. The method is characterized in that the microparticles in the agent have a maximum diameter of 100 µm and contain the following constituents: a) 0.5-70 % by wt. of at least one active substance, b) 10-70 % by wt. of at least one biodegradable polymer, c) up to 20 % by wt. of formulation auxiliaries.
Patent CA-2253603-C (CA)
Inventor: GERSHENFELD NEIL
IPC: B60R21/015
Filed: 1997-04-25
Granted: 2004-08-24
Abstract: Un système de détection quasi électrostatique entoure une masse électroconductrice d'un champ électrique dont l'intensité est mesurée en un ou plusieurs points afin d'évaluer l'une des propriétés, présentant un intérêt, relative à la masse. L'objet intercepte une partie du champ électrique s'étendant entre l'électrode émettrice à couplage c.a. et les autres électrodes réceptrices, la quantité de champ interceptée dépendant de la taille et de l'orientation de la masse examinée, que celle ci comporte ou non un conducteur de terre, et de la géométrie des électrodes réparties. La réponse du champ à un objet étant une fonction non linéaire complexe, l'adjonction d'électrodes permet toujours de distinguer entre plus de cas. En d'autres termes, chacune des électrodes représente une pondération indépendante de la masse comprise dans le champ. L'adjonction d'électrodes fournit des informations sur la masse, non redondantes avec celles fournies par les autres électrodes. Un modèle avancé mettant en corrélation le comportement du système avec les variations des propriétés à mesurer est établi et l'inversion de ce modèle facilite la restitution des propriétés en fonction du comportement du système. L'invention peut s'appliquer à une grande variété d'utilisations dont la détection de la position et des gestes d'un utilisateur, ainsi qu'à des moyens de transmission d'informations bi ou tridimensionnelles par exemple à des ordinateurs, des appareils domestiques, des postes de télévision, des meubles, etc., l'apport de données d'entrée ou d'instructions à un dispositif ou l'évaluation de la proximité par rapport à un objet de référence, dans le but de garantir la sécurité, pour avertir d'un danger ou pour conserver de l'énergie en restreignant une puissance jusqu'à ce qu'un utilisateur potentiel s'approche de l'objet.
Patent CA-2256772-C (CA)
Inventor: VINCENT JON RUSS
IPC: E01B19/00
Filed: 1998-12-18
Granted: 2002-12-10
Abstract: In accordance with illustrative embodiments of the invention, a drain basin system for collecting liquids and light solids that are spilled while loading or unloading a rail tank car includes a system of precast concrete pan members. Center pan members which are positioned between the rails have upwardly inclined flanges on their outer sides which extend partly over the plates of the rails, and outside pan members have identical flanges on their inner sides and upstanding walls on their outer sides. A pair of the system of pan members positioned end-to-end are arranged to have a higher elevation at the joint between them so that liquids run toward opposite ends where they enter trench drains either directly or via sealed tubular drains. Flashing strips cover the abutting joints, and also extend along the inclined flanges on opposite sides of each rail and up underneath the sides of the head thereof. In one embodiment, rigid tubes and flexible elastomer seal sleeves provide drain paths in a non-rigid connection.
Patent CA-2257699-C (CA)
Title: Fluids for fracturing subterranean formations
Inventor: ZHANG KEWEI
IPC: C09K8/70
Filed: 1998-12-31
Granted: 2003-07-22
Abstract: A fracturing fluid for use in fracturing subterranean formations surrounding oil and gas wells comprises water, an anionic surfactant, and a cationic surfactant.
Patent CA-2270211-C (CA)
Title: Process for producing uridine diphosphate-n-acetylglucosamine
Inventor: NOGUCHI TOSHITADA
IPC: C12P19/30
Filed: 1998-08-11
Granted: 2008-05-13
Abstract: A process for producing uridine diphosphate-N--acetylglucosamine (UDPAG) from uridylic acid (UMP) and N--acetylglucosamine by use of microorganism cells, characterized by adding N-acetylglucosamine kinase thereto. According to the present invention, UDPAG can be efficiently produced even when N-acetylglucosamine is used as a substrate.
Patent CA-2274282-C (CA)
Title: Merge sorting apparatus with comparison nodes connected in tournament tree shape
Inventor: AZUMA SHINSUKE
IPC: G06F7/36
Filed: 1999-06-10
Granted: 2002-07-30
Abstract: A merge sorting apparatus comprises a comparison tournament circuit including comparison nodes, and a comparison control circuit for supplying to the corresponding comparison nodes validity flag information concerning the input data to each of the comparison nodes determined based on comparison results from the comparison nodes. The comparison control circuit comprises comparison result registers for retaining the comparison results, validity flag registers for retaining the validity flag information, and merge member registers for retaining information as to whether or not the input data to each of the input registers corresponding to respective pathways should be the object of comparison in the following data comparison processing. With this arrangement, contending readouts of record arrays from a memory can be reduced and the necessity to initialize each register is eliminated, thereby speeding merge sorting.
Patent CA-2275513-C (CA)
Title: Vacuum cleaner with filter clogging indicating means
Inventor: DYSON JAMES
IPC: A47L9/19
Filed: 1997-12-17
Granted: 2005-06-21
Abstract: The invention provides a vacuum cleaner having an airflow path, dust separating apparatus arranged in the airflow path and a motor arranged in the airflow path downstream of the dust separating apparatus, a pre-motor filter located immediately upstream of the motor and downstream and separate from the dust separating apparatus, and a bleed valve located upstream of the pre-motor filter to allow air to be bled into the airflow path in the event of a blockage occurring upstream of the bleed valve, wherein signalling means responsive to a change in an operating condition of the motor are provided to indicate that a blockage has occurred at or downstream of the pre-motor filter.
Patent CA-2284815-C (CA)
Inventor: KIRSCHBAUM KURT
IPC: B62D49/00
Filed: 1999-10-05
Granted: 2002-07-09
Abstract: The invention relates to a device for stabilising the two lower steering arms 1 of a tractor. The lower steering arms 1 can be actuated by a hydraulically operated power lever 9 and are each associated with a side strut 6 with a first single-acting hydraulic cylinder 7 for stabilising and fixing purposes. A line connection between the first single-acting hydraulic cylinders 7 and the power lever 9 can be effected by a control valve 13.      To centre the lower steering arms 1 and set same to a predetermined dimension of spread, even when no implement is attached, the line 14 leading to the second single-acting hydraulic cylinder 10 for the power lever 9 contains a pressure-controlled first return valve for which there is provided a bypass line 21 with a second return valve 22 locking in the direction opposite to that of the first return valve.
Patent CA-2293511-C (CA)
Title: A compact front-fed dual reflector antenna system for providing adjacent, high gain antenna beams
Inventor: CHANDLER CHARLES W
IPC: H01Q19/18
Filed: 1999-12-29
Granted: 2002-08-13
Abstract: An antenna system comprising a feed array, a subreflector and a main reflector which are oriented to define a front-fed dual reflector antenna geometry. The feed array is comprised of a plurality of separate feeds which are aligned in a predetermined contour. Each feed array is coupled to a feed network which acts to combine the illumination beams of clusters of a preselected number of feeds to produce a plurality of composite illumination beams. Each composite illumination beam is directed to be incident upon a separate predetermined location on the subreflector which directs the composite illumination beams towards the main reflector. Each composite illumination beam is reflected by the main reflector in a preselected direction so that each composite illumination beam forms an antenna beam that impinges a predetermined coverage area on the Earth. Each antenna beam defines a separate coverage cell in the coverage area, wherein the position and orientation of the feeds, the subreflector and the main reflector provides antenna beams over a full Earth field of view coverage area where each antenna beam is approximately symmetrically shaped.
Patent CA-2304425-C (CA)
Inventor: IWAMOTO HIDETOSHI
IPC: C08L33/26
Filed: 2000-04-03
Granted: 2009-06-02
Abstract: Provided are novel pyrazolone compounds which have excellent copolymerizability and undergo no elution in an organic solvent when used for an ophthalmic plastic lens and which have an excellent absorption peak in visible light region and function as a reactive yellow dye.
Patent CA-2315329-C (CA)
Inventor: CHEN CHIH-MING
IPC: A61K9/36
Filed: 1998-12-04
Granted: 2008-04-29
Abstract: L'invention porte sur une préparation à libération contrôlée de doses basée sur une combinaison de: (a) un noyau fait d'un comprimé renfermant un ester alkylique d'un dérivé de naphtalène à substitution hydroxy, un polymère pharmacocompatible gonflant dans l'eau, et un agent osmotique; et (b) une couche extérieure d'enrobage recouvrant entièrement le noyau osmotique et renfermant un agent d'enrobage réagissant au pH ainsi qu'un polymère hydroinsoluble.
Patent CA-2316362-C (CA)
Inventor: VEMULA ROHINIKUMAR
IPC: D21C9/08
Filed: 1998-12-15
Granted: 2007-11-13
Abstract: A method for separating wax from wax containing paper. The method involves immersing the wax containing paper in a heated alkane solvent, preferably n-hexane, to dissolve the wax contained in the paper into the solvent. The dissolved wax and solvent forms a miscella which is later separated from the paper. Any residual solvent absorbed in the paper is removed therefrom. The method also involves retrieving the wax from the miscella.
Patent CA-2319350-C (CA)
Inventor: KETTUNEN MIIKKA
IPC: D21F5/02
Filed: 1999-02-02
Granted: 2008-09-23
Abstract: The invention concerns a roll in a paper machine, such as a suction roll (10) or a variable-crown roll, and a roll in a paper finishing machine, such as a variable-crown roll or a heated roll in a calender for paper, and a coupling arrangement for the tending-side end of the roll. Through the coupling arrangement, energy media are passed into the roll (10), such as pressure fluid and/or compressed air, lubricating media, such as lubrication oil and/or water, and cleaning media, such as hot water. The coupling arrangement comprises an openable shield casing (20), which is connected with the tending-side end of a roll sufficiently tightly. The coupling arrangement comprises a coupling flange (30;  35) or coupling flanges (30, 35), to which the various pipes (15, 16) and/or hoses have been attached. In the interior of the shield casing (20) there are connecting pipes (15a, 15c, 15d, 16a, 16c, 16d) and/or hoses, which connect the pipe parts (15a, 15b) of the roll end with the hose and/or pipe parts (15f, 16f) departing from the coupling arrangement.
Patent CA-2322146-C (CA)
Inventor: TAKEUCHI SHUJI
IPC: C22C38/00
Filed: 2000-10-04
Granted: 2008-12-30
Abstract: The composition of inclusions and the S concentration in steel are controlled in a manner such that, among the CaO-containing oxide inclusions present in a Ca-containing steel, an equilibrium S soluble amount (%S inc.) of at least 80% of the oxide inclusion particles having a particle diameter of 2 µm or more are about 0.03 wt% or less, thereby inhibiting rust formation due to the inclusions, thus solving a problem which has long been of concern in Ca-containing steels.
Patent CA-2325199-C (CA)
Inventor: HAMM JAMES E
IPC: B21D17/04
Filed: 2000-11-07
Granted: 2005-06-28
Abstract: Roll grooving apparatus for rolling a circumferential groove in a pipe is adapted to be mounted on a power drive unit for the axes of the driven and idler grooving rolls to lie in a plane which is one of horizontal or at an acute angle to horizontal such that the weight of a pipe between the grooving rolls during a roll grooving operation promotes tracking of the groove. A rotatable groove depth gauge is mounted on a support member of the apparatus adjacent a stop element which engages the support member to determine groove depth, and the gauge is displaceable relative to the stop element into and out of a gauging position in which the stop element can be set to control the groove depth in a given workpiece.
Patent CA-2332741-C (CA)
Inventor: SUGA AYAMI
IPC: A61L15/28
Filed: 2001-01-30
Granted: 2008-07-29
Abstract: Provided is a sanitary tampon including an absorbent wrapped by a liquid-pervious sheet. The absorbent is a mass of a plurality of compressed, small fiber agglomerates. At least the small fiber agglomerates located in the peripheral region of the absorbent are bonded to each other via hydrogen bonding therebetween.
Patent CA-2347587-C (CA)
Inventor: CICOTTE EDMOND BURTON
IPC: G05G1/40
Filed: 1992-09-25
Granted: 2003-09-02
Abstract: A method of and an adjustment device for adjusting a pedal arm adapted to rotate about an axis of arm rotation.      The adjustment device comprises camming means rotatably-mounted juxtaposed the pedal arm for rotating the, pedal arm about the axis of arm rotation; the camming means having an axis of cam rotation. Means locate the axis of cam rotation a predetermined distance from the axis of arm rotation; the locating means having one end pivotably mounted substantially concentric with the axis of arm rotation such that rotation of the camming means rotates the pedal arm about the axis of arm rotation. Drive means are juxtaposed the camming means, and have drive means with a projecting portion engaging the camming means for driving the camming means about the axis of cam rotation. Rotation of the camming means about the axis of cam rotation causes the pedal arm to be rotatively displaced about the axis of arm rotation.