baber/WOPTO huggingface dataset:
Patent CA-2216272-A1 (CA)
Title: Pattern matching apparatus
Inventor: HIRAMATSU KATSUHIKO
IPC: H04L7/04
Filed: 1997-09-23
Abstract: In a multi-value modulation system such as M bits/1 symbol, a pattern matching apparatus is arranged by a coincident bit number detecting circuit for detecting a coincident bit number between a received symbol and the known pattern of a receiver within 1 symbol; a delay circuit for delaying the detection result; and an adder. Then, a coincident bit number between the received 1 symbol (M bits) and 1 symbol (M bits) of the known pattern is detected.      These detected bit numbers are added to each other, so that when a length of a UW pattern is N bits, the total number of adders can be reduced to N/M.
Patent CA-2217156-A1 (CA)
Title: Device for early detection of break-outs during continuous casting
Inventor: ADAMY JUERGEN
IPC: B22D11/16
Filed: 1996-03-28
Abstract: For early detection of break-outs during continuous casting, the surface temperature of the strand is detected by means of temperature sensors arranged in a manner distributed around the strand in the mould and is then evaluated.      In order to be able to achieve as accurate a prediction as possible for break-outs with only a low computational outlay, each temperature sensor (10) is assigned a pattern recognition device (11) which, from the temperature detected and an internal state variable representing the temperature curve up to that point, updates the internal state variable on the basis of fuzzy conclusions and generates at the output a current predicted value (P a) for the break-out probability.
Patent CA-2219522-A1 (CA)
Inventor: YOUNG KWO
IPC: H01M4/38
Filed: 1996-05-06
Abstract: Non-uniform heterogeneous powder particles for electrochemical uses, and said powder particles comprising at least two separate and distinct hydrogen storage alloys selected from the group consisting of: Ovonic LaNis type alloys, Ovonic TiNi type alloys, and Ovonic MgNi based alloys.
Patent CA-2220575-A1 (CA)
Title: Soluble, active hepatitis c virus protease
Inventor: DASMAHAPATRA BIMALENDU
IPC: C07K19/00
Filed: 1996-05-09
Abstract: Soluble HCV NS3 protease, including the NS3 protease fused to a solubilizing motif. A fusion of the NS3 and NS4 regions under conditions where they are not cleaved by the NS3 protease. Bacterially expressed soluble HCV NS3 protease.  Host cells wherein at least 1 % of the cell's total protein is soluble HCV NS3 protease.
Patent CA-2221223-A1 (CA)
Title: Multipoint lock for sliding patio door
Inventor: BESTLER WILLIAM J
IPC: E05C9/00
Filed: 1997-11-17
Abstract: A multipoint lock for securing a door in a closed position relative to a door frame, including a tie bar longitudinally movable on a door with two latch members secured thereon and adjustably secured laterally relative to the longitudinal tie bar. The latch members are modular with structure on one end for selectively securing to tie bar opposite ends and other latch members. A metal face plate is securable over a door side groove with the tie bar movably secured to the face plate in that groove at at least two locations by securing members extending through openings in the face plate, tie bar and a plastic spacer to secure them together at each of the two locations. The securing member includes a longitudinal body member with parallel longitudinal sides cooperating with a tie bar slot to guide the tie bar. Rivets at opposite ends of the securing members are secured to the face plate. A link is pivotable about a substantially horizontal axis with one arm drivably engageable with the tie bar to selectively move the tie bar vertically toward its disengaged position, and a handle member is slightly pivotable about a substantially vertical axis on the door when pulled horizontally toward opening the door, with the handle member drivably engaging the pivot link other arm. A keeper base selectively spaces two keeper hooks and is securable to a door frame to cooperate with the latch members in a securing position to prevent the door from being moved from its closed position. The keeper base is securable along one side to the frame and includes a projecting portion which visibly marks the frame when pressed thereagainst, and an alignment guide supports the keeper hooks in a cooperative position with the latch members prior to securing to the frame.
Patent CA-2222836-A1 (CA)
Title: Hand-held scanner with rotary position detector
Inventor: LIPMAN ADI
IPC: G06K9/20
Filed: 1996-06-20
Abstract: An optical scanner includes a hand-holdable housing having a scanner head for scanning a record medium (RM), a roller (15) engageable with and rotatable by the record medium when scanned by the scanner head, the roller including an optically-sensible marking for use in measuring rotary movement of the roller, a light source illuminating the roller and its marking, an optical sensor (4) for sensing information on the record medium and the marking of the roller, and a control system for periodically energizing the light source during predetermined time periods enabling the optical sensor to sense the marking of the roller during the predetermined time periods, and the information on the record medium during other time periods.
Patent CA-2223854-A1 (CA)
Title: Method for starting a chlor-alkali diaphragm cell
Inventor: MALONEY BERNARD A
IPC: C25B15/00
Filed: 1996-07-23
Abstract: Describes adding an anolyte soluble amphoteric material, e.g., an aluminum compound, to the anolyte of a chlor-alkali diaphragm cell having a synthetic diaphragm during the start-up period of the cell to reduce the permeability of the diaphragm. Complementary inorganic porosity modifying materials, e.g., magnesium materials such as magnesium chloride, and clays are also added to the anolyte during the start-up period of the cell.
Patent CA-2226496-A1 (CA)
Title: Vacuum flash evaporated polymer composites
Inventor: AFFINITO JOHN D
IPC: H05K3/00
Filed: 1996-07-25
Abstract: A method for fabrication of polymer composite layers in a vacuum is disclosed.  More specifically, the method of dissolving salts in a monomer solution, vacuum flash evaporating the solution, condensing the flash evaporated solution as a liquid film, and forming the condensed liquid film into a polymer composite layer on a susbtrate is disclosed.
Patent CA-2227772-A1 (CA)
Inventor: WARWICK JANE MARGARET
IPC: C11D3/36
Filed: 1996-07-12
Abstract: There is provided a detergent composition in compacted solid form containing:  (a) an organo diphosphonate crystal growth inhibitor; and (b) an alkalinity system comprising alkaline salts selected from the group consisting of alkali and alkaline earth carbonates, bicarbonates, hydroxides and silicates, wherein at least part of the alkalinity system comprises particulate alkaline salts coated with an organic binder and the weight ratio of organic binder to alkalinity system in the detergent composition is from 1:100 to 1:1. A making process is also provided.
Patent CA-2233412-A1 (CA)
Inventor: PAUL-DUBOIS-TAINE BENOIT
IPC: G06F11/20
Filed: 1998-04-20
Abstract: A database system comprises a group of stations (10-1,10-2,..10-n) linked by a network (12) and having a central station (14) for the safekeeping of the whole database. Certain classes of data, for example, those storing mobile telephone sites are sent from a station originating a modification to a second station either synchronously or asynchronously. Each option has advantages and disadvantages in terms of speed, security and system utilisation and these are optimised by making individual decisions for each situation using test criteria which assess the nature of the particular data concerned.
Patent CA-2233477-A1 (CA)
Inventor: RAVAGLIA LUIS EDUARDO FERRAZ D
IPC: D06M15/70
Filed: 1996-09-12
Abstract: The present invention pertains, in a preferred embodiment, to a method for selectively aperturing a nonwoven web (22) exhibiting a plurality of surface energy gradients. The method includes the steps of: providing a nonwoven web (22) of fibers exhibiting a surface energy, the nonwoven web (22) having a first surface (61), a second surface (62) and a plurality of fluid passageways placing the first (61) and second (62) surfaces in fluid communication with one another; applying a surface treatment to the first surface (61) of the nonwoven web (22), the surface treatment having a surface energy less than the surface energy of the fibers of the nonwoven web (22) creating a plurality of surface energy gradients defined by discontinuous spaced regions which are adapted to exert a force on a fluid contacting the first surface (61), such that the fluid will be directed toward the fluid passageways for transportation away from the first surface (61) and in the direction of the second surface (62); weakening the nonwoven web (22) at a plurality of locations creating a plurality of weakened, melt-stabilized locations; and applying a tensioning force to the nonwoven web (22) to cause the nonwoven web (22) to rupture at the plurality of weakened, melt-stabilized locations creating a plurality of apertures in the nonwoven web (22) coincident with the plurality of weakened, melt-stabilized locations. The web (22) is particularly well suited for use as a topsheet on a disposable absorbent article.
Patent CA-2235113-A1 (CA)
Inventor: VOGGENREITER HEINZ
IPC: B22C9/12
Filed: 1998-04-17
Abstract: A water soluble core of an aluminum or magnesium alloy is used for the production of an object with a hollow space.
Patent CA-2237507-A1 (CA)
Title: Power steering system
Inventor: FURUUCHI HIDEKI
IPC: B62D5/04
Filed: 1998-05-13
Abstract: A power steering system to reduce the moment of inertia of the torque limiter and to accurately determine pressing force by a forcing member is provided.  The torque limiter of the system has a basic structure in which a substantially-cylindrical rotating member (23) which is rotatable together with one of the output shaft (20, 120) and the input shaft (21); and a rotated member (24, 124, 324, 424) which is rotatable together with the other of the output shaft and the input shaft, and which is forced toward the rotating member side by a forcing member (26) supported by the rotating member. Typically, the rotating member is a substantially-cylindrical limiter cover with a bottom, and the rotated member is a limiter plate contained in the limiter cover.      The forcing member may be supported by a concave portion formed in an inner-peripheral area of the limiter cover, or may be supported by a projecting portion which is formed by deforming the cylindrical portion of the limiter cover toward the inside. In the above basic structure, the rotated member may separately comprise a cylindrical portion (124A, 324A, 424A), on the inner-peripheral surface of which plural splines are formed in parallel with its axial direction, these splines being engaged with the splines formed in the outer-peripheral surface of the other of the output shaft and the input shaft; and a flange portion (124B), which is forced toward the rotating member side, by which the flange portion functions as a friction clutch. In this structure, efficiency of forming the limiter plate can be improved.
Patent CA-2238759-A1 (CA)
Title: A method and system for extending the directory number of a terminal
Inventor: MARTINEZ EDGAR
IPC: H04Q3/00
Filed: 1997-11-04
Abstract: A method and system are disclosed for extending the directory number of a terminal. The invention allows service providers to provide a service which uses an existing subscriber directory number and effectively extends it to include one or more other directory numbers. To the subscriber, the terminals associated with the other directory numbers effectively look like virtural extensions. The method and system provide this flexibility without requiring any additional personal numbers being assigned to the subscriber. The subcriber can choose to have all incoming calls to a DN of one of their existing terminals alert or ring one or more other terminals having a different DN. The terminals may for example be on the same network (e.g. all on the wireline network) or they may be on different networks (e.g. one on the wireline network and one on the wireless network). The method and system are substantially transparent to subscribers and calling parties as no additional numbers or new DN's of any sort are required.
Patent CA-2241055-A1 (CA)
Inventor: HUEBEL EGON
IPC: C25D5/18
Filed: 1996-09-27
Abstract: A process is disclosed for generating short, cyclically repeated unipolar or bipolar electroplating pulse-shaped currents IG, IE, as well as an electroplating circuitry with which such pulse-shaped currents IG, IE can be generated. Such electroplating processes are known as pulse-plating processes. The secondary winding (6) of a current transformer (1) is connected in series to the electroplating direct current circuit (5) which consists of a bath direct current source (2) and a bath resistor (RB) formed by an electroplating cell (4). The primary winding (7) of the transformer has a larger number of turns than the secondary winding. The primary winding is driven with highvoltage and relatively low-current pulses. The high pulsed current at the secondary side temporarily compensates in a pulsed manner the electroplating direct current. This compensation may be a multiple of the electroplating current, producing high amplitude demetallisation pulses. The capacitor (10) leads the compensation current by charge and discharge. Thanks to the invention, known electronic heavy current isolating switches which are uneconomical in operation because of high current conductivity losses may be dispensed with for the pulse plating.
Patent CA-2243055-A1 (CA)
Title: Hand tool with reversible shaft
Inventor: SWEENY BRIAN A
IPC: B25B9/00
Filed: 1998-07-14
Abstract: A hollow handle accommodates a reversible shaft with a different functionality at each end. According to the preferred embodiment of the invention, a first end of the shaft is configured with an integral telescoping magnetic pick up tool, and a second end of the shaft is adapted to receive modular double-ended screwdriver bits. The reversible shaft is retained within the handle by a conventional spring loaded ball configuration located at the mid-point of the shaft and is prevented from rotating within the handle by preferably two wings projecting radially outwardly from the shaft. The spring loaded ball and the two wings are retained within a corresponding recess and two co-operating slots, respectively. The recess and slots are defined in a metal sleeve molded into the handle.
Patent CA-2243219-A1 (CA)
Title: Electrolytic generation of nitrogen
Inventor: OLOMAN COLIN
IPC: C25B1/00
Filed: 1998-07-14
Abstract: The invention provides methods and devices for the electrochemical generation of nitrogen from organic hydrazides (RCONHNH2) or corresponding organic hydrazino-carboxylates (RCO2NHNH2). The present invention also provides methods and devices for the auto-electrolytic generation of nitrogen, using electrochemical cells that comprise both a nitrogen compound capable of acting as a reluctant in an electrochemical reaction to produce nitrogen gas, and an electrochemical energy source capable of driving the oxidation of, the nitrogen compound. Electrical circuits and mechanical transducers arc provided to utilize the electrochemical nitrogen generating processes of the invention in fluid dispensers.
Patent CA-2245249-A1 (CA)
Title: Non-dislocatable low-wear hip prosthesis
Inventor: VOYDEVILLE GILLES
IPC: A61F2/34
Filed: 1997-02-03
Abstract: A hip prosthesis comprising a femoral stem (3), a spherical head (6) fitted over the neck (5) of the femoral stem, and a metal socket (1) with which the head is pivotably engageable. A cup (7) is inserted between the head (6) and the socket, the head and the cup are made of a ceramic or similar material having a low friction coefficient, and the head is pivotable on the cup. Said cup is pivotably fitted in a plastic socket (8) that is in turn fitted in the metal socket (1). Said prosthesis thus comprises two joints, one between the head (6) and the cup (7), and another between the cup (7) and the polyethylene socket (8), the first ceramic-ceramic joint being exposed to most stress. As a result, the wear of the polyethylene socket (8) produces very few loose particles, whereby the risk of separation is substantially reduced and the total lifetime of the prosthesis is greatly extended. The prosthesis has low wear properties.
Patent CA-2250840-A1 (CA)
Inventor: KHANNA SATISH CHANDRA
IPC: C07C233/21
Filed: 1997-04-14
Abstract: There are described compounds of formula (I*) wherein R1 is lower alkoxycarbonyl, R2 is secondary or tertiary lower alkyl or lower alkylthio-lower alkyl, R3 is phenyl that is unsubsituted or substituted by one or more lower alkoxy radicals, or C4-C8cycloalkyl, R4 is phenyl or cyclohexyl each substituted in the 4-position by unsaturated heterocyclyl that is bonded by way of a ring carbon atom, has from 5 to 8 ring atoms, contains from 1 to 4 hetero atoms selected from nitrogen, oxygen, sulfur, sulfinyl (-SO-) and sulfonyl (-SO2-) and is unsubstituted or substituted by lower alkyl or by phenyl-lower alkyl, R5, independently of R2, has one of the meanings mentioned for R2, and R6, independently of R1, is lower alkoxycarbonyl, or salts thereof, provided that at least one salt-forming group is present. The compounds are inhibitors of retroviral aspartate protease and can be used, for example, in the treatment of AIDS. They exhibit outstanding pharmacodynamic properties.
Patent CA-2251927-A1 (CA)
Title: Cycloalkylaminomethylpyrrolidine derivatives
Inventor: KAWAKAMI KATSUHIRO
IPC: C07D401/04
Filed: 1997-04-24
Abstract: A quinolone derivative represented by formula (I):     (See formula I) wherein R1 represents a cycloalkyl group; R2 represents a hydrogen atom, an amino group, a hydroxyl group, a thiol group, a halogenomethyl group, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxyl group; R3 represents an amino group, a halogenomethyl group, a halogenomethoxyl group, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxyl group; R4 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R5 represents a cycloalkyl group having 3 to 6 carbon atoms; the above R1 to R5 may be substituted; X represents a halogen atom or a hydrogen atom; and Y represents a hydrogen atom, a phenyl group, an acetoxymethyl group, a pivaloyloxymethyl group, an ethoxycarbonyl group, a choline group, a dimethylaminoethyl group, a 5-indanyl group, a phthalidinyl group, a 5-alkyl-2-oxo-1,3-dioxol-4-ylmethyl group, a 3-acetoxy-2-oxobutyl group, an alkyl group having 1 to 6 carbon atoms, an alkoxymethyl group having 2 to 7 carbon atoms, or a phenylalkyl group having 1 to 6 carbon atoms in the alkyl moiety thereof, or a salt thereof. The compound exhibits high and broad antimicrobial activity against various bacteria including bacteria resistant to drugs and high safety.
Patent CA-2252179-A1 (CA)
Title: Steering control system for tracked vehicle
Inventor: EASTON DAVID JOSEPH
IPC: B62D11/08
Filed: 1998-11-24
Abstract: A tracked vehicle includes an engine driven variable displacement steering pump which drives a hydraulic steering motor. The steering motor drives a differential drive mechanism which drives left and right track drive wheels. A steering control system senses the position of a non-spring centered steering wheel, vehicle speed, engine speed, steering motor speed, whether or not the transmission is in gear or in neutral, and whether the clutch is engaged or disengaged. In order to prevent a self-perpetuating turn situation, the control system gradually decreases the steering motor speed if the transmission is in neutral or the clutch is not engaged, and the steering motor speed divided by the vehicle speed is greater than a threshold, and the vehicle speed is less than a reference level.
Patent CA-2254953-A1 (CA)
Title: Therapies for chronic renal failure
Inventor: SAMPATH KUBER T
IPC: A61K38/18
Filed: 1997-05-06
Abstract: The present invention provides methods for the treatment, and pharmaceuticals for use in the treatment, of mammalian subjects in, or at risk of chronic renal failure, or at risk of a need for renal replacement therapy. The methods involve the administration of certain proteins of, or based upon, the osteogenic protein/bone morphogenetic protein (OP/BMP) family within the TGF-.beta. superfamily of proteins.
Patent CA-2255221-A1 (CA)
Title: Antibacterial swabs
Inventor: ZYGMONT JOSEPH FRANK
IPC: A61F13/38
Filed: 1998-12-03
Abstract: A swab is provided which includes an elongate stem and an absorbent covering such as cotton surrounding opposite tips of the stem. An antimicrobial agent is dispersed within the absorbent covering. A process is also provided for manufacturing the swabs. The process includes the steps of preparing a liquid medium containing the antimicrobial agent, contacting the absorbent covering with the liquid medium and then drying the absorbent covering.
Patent CA-2255417-A1 (CA)
Title: Method for joining metal pieces
Inventor: NIKAIDO HIDEYUKI
IPC: B23K31/02
Filed: 1994-12-15
Abstract: According to the invention, the rear end of a preceding metal piece and a front end of a succeeding metal piece are heated, pressed and joined prior to the finishing hot rolling.          An alternating magnetic field running through the metal pieces in the thickness direction thereof is generated in an end region on opposed faces of the respective metal pieces to perform heating.  The temperature of each metal piece is adjusted to be within a range defined by expressions.
Patent CA-2255587-A1 (CA)
Inventor: RILEY RICHARD E
IPC: H01H85/048
Filed: 1997-05-21
Abstract: Une résistance thermo-fusionnée (50) comprend une résistance (58) connectée électriquement à une extrémité à une première borne (62) de résistance et à une extrémité opposée à une seconde borne (64) de résistance. Une boucle de soudure (66) permet d'effectuer la connexion électrique entre une extrémité de la résistance et sa borne correspondante. Une partie de la boucle de soudure (66) est placée en contact avec une partie isolée électriquement (74) de la surface de la résistance correspondant de préférence au point chaud de la résistance, et un milieu thermoconducteur (76) est prévu pour rattacher thermiquement et mécaniquement la boucle de soudure (66) à la partie isolée électriquement (74) de la surface de la résistance. La partie (72) de la boucle de soudure (66) rattachée thermiquement à la résistance (58) peut fusionner lorsque la température de la résistance augmente à l'intérieur d'une plage de température prédéterminée, ce qui permet de déconnecter électriquement l'extrémité de la résistance de sa borne correspondante.
Patent CA-2256534-A1 (CA)
Title: Traveling spark ignition system and ignitor therefor
Inventor: DURBIN ENOCH J
IPC: F02P9/00
Filed: 1997-05-29
Abstract: A plasma ignitor, or plasma source, for igniting a combustible mixture in an internal combustion engine. The ignitor includes at least two spaced apart electrodes dimensioned and arranged such that an outwardly moving plasma is formed when a voltage is applied across the electrodes. The present invention is characterized by its efficient use of input electrical energy for driving the plasma ignitor and by an ignition plasma kernel which is several orders of magnitude larger than that produced by conventional spark plugs. Outward motion and expansion of the plasma kernel is produced by a Lorentz force thereon, arising from interaction between the applied voltage and current between the electrodes, through the mixture, after initial plasma generation in the mixture. Use of very lean combustible mixtures, in which the dilution of the mixture is achieved by use of exhaust gas recirculation, is made possible by the present ignition system. Improvement in engine efficiency, and a major reduction in NO X exhaust gas pollutants are obtained.