baber/WOPTO huggingface dataset:
Patent CA-2228831-C (CA)
Inventor: ROBINSON ALAN
IPC: H04B10/02
Filed: 1998-02-04
Granted: 2008-08-12
Abstract: An Optical Transmission System includes a monitor for outputting monitored data representative of the extent to which an optical signal is degraded by polarization mode dispersion. The monitor measures the degree of depolarization present in a sample of the optical signal derived from an optical tap, the depolarization being associated with polarization variation at the bit rate frequency of a signal data stream carried by the optical signal. The monitored data is used to control operation of the system to reroute the optical path taken by the optical signal in the event of a threshold level of polarization mode dispersion being exceeded. A transmitter of the optical signal may also be controlled to minimize polarization mode dispersion by varying the polarization state of the optical signal at launch so as to reduce the measured monitor data. The monitor functions during normal transmission of optical signals without the need for shutting down links of the system for measurement purposes. The invention has particular application to long haul optical transmissions of data streams at 10 Gb/sec or more.
Patent CA-2232219-C (CA)
Inventor: ANDERSON JOHN ERLING
IPC: F27B3/22
Filed: 1998-03-16
Granted: 2005-01-11
Abstract: A method for effectively providing main gas into a pool of molten metal, which is particularly useful for use in an electric arc furnace. The method employs combustion of secondary oxygen with fuel to form a flame envelope around a main gas stream which protects the main gas from entrainment of ambient gases as it passes through the headspace of the furnace. This enables the gas to retain to a substantial degree its original force upon injection into the headspace and thus may be injected into the furnace at a safe distance from the molten metal surface while still achieving substantially complete penetration into the molten metal.
Patent CA-2238433-C (CA)
Inventor: KING TIM
IPC: A47K10/38
Filed: 1996-12-13
Granted: 2005-02-08
Abstract: A centre-feed roll (1) is disclosed which is formed from two webs (2, 3) each having lines of weakness (10) which allow the web to be separated into a plurality of sheets (8, 9, 11). The lines of weakness of one web are offset from those of the other such that in use the sheets can be dispensed singly from alternate webs. The lines of weakness (10) are manufactured to be as weak as possible such that the frictional force exerted by the aperture (7) may be minimised and the web will break as soon as the frictional force between the web (2, 3) and the aperture (7) is present across the perforations. The webs do not form a rope and the next sheet is presented for the next user to grasp easily. A base for use with a centre-feed roll is also disclosed. The base is provided with a rim extending around an aperture, the rim projecting into the centre of the roll in use. The web passes through the aperture from the inner surface of the roll.
Patent CA-2238978-C (CA)
Inventor: LIU JIH-HUA
IPC: C07D277/34
Filed: 1996-12-06
Granted: 2001-05-15
Abstract: Composé de la formule (I) constituant un inhibiteur de protéase de VIH. L'invention porte également sur des méthodes et des compositions d'inhibition de l'infection par VIH.
Patent CA-2239167-C (CA)
Inventor: LERNER RICHARD A
IPC: C12N9/00
Filed: 1996-12-16
Granted: 2009-09-22
Abstract: Antibodies that catalyse the aldol reaction are generated by immunization with a reactive compound that covalently traps a Lysine (Lys) residue in the binding pocket of the antibody by formation of a stable vinylogous amide, i.e., a covalent antibody/hapten complex.  The resultant catalytic antibodies employ a catalytic mechanism which mimics the catalytic mechanism employed by natural class I aldolase enzymes.
Patent CA-2240924-C (CA)
Title: Storage-stable curable hydrophilic polysiloxane compositions
Inventor: LEWIS KENRICK
IPC: A61K6/896
Filed: 1998-06-17
Granted: 2006-02-14
Abstract: The instant invention provides a method for improving the miscibility of the lower molecular weight unsaturated siloxane - polyether copolymers with the .alpha., .omega.-divinylpolysiloxanes without loss of storage stability, or delay of cure at the vulcanization temperature, or loss of permanent hydrophilicity or other desirable features of the cured polysiloxane. The compositions of the present invention comprise one or more .alpha., .omega.-divinylpolysiloxanes, unsaturated polysiloxane - polyether copolymers having from 2 to 5 silicon atoms per molecule which are preferably trisiloxanes, and a compatibilizing additive. The permanently hydrophilic, rapidly wettable polysiloxane compositions yield static water contact angles < 50° dynamic advancing contact angles of less than about 100.
Patent CA-2247373-C (CA)
Title: Method for selecting information services from a menu in selective call transceivers
Inventor: COONLEY GREGARY A
IPC: H04M3/42
Filed: 1997-02-13
Granted: 2000-11-28
Abstract: A selective call transceiver (200) has a plurality of assignable address ports (246), a receiver (204) for receiving a directory of information services (120-132) on a mail drop address port, a controller (210) for generating a menu (240) from the directory of information services (120-132), a display (228) for displaying the menu (240) of the information services from the plurality of assignable address ports (246) and a user interface (216) for selecting an information service (242) from the menu (240) of information services. The controller (210) is further coupled to the user interface (216) to assign the information service being selected to the identified assignable address port, and a transmitter (208) transmits a request for the selected information service (242) including an address for indentifying selectable address port.
Patent CA-2253779-C (CA)
Inventor: PEDERSEN LEIF
IPC: F15B11/00
Filed: 1998-02-23
Granted: 2003-01-28
Abstract: La présente invention concerne un système hydraulique à compensation de pression amélioré destiné à fournir un fluide hydraulique à au moins un actionneur hydraulique (20). Une pompe autorégulatrice (18) éloignée fournit une pression de sortie égale à une pression de régulation d'entrée augmentée d'une marge constante. Dans un système de compensation de pression, une pression dépendant de la charge doit être transmise à l'entrée de la pompe à travers un circuit de détection de charge. Un isolateur (92) transmet la pression dépendant de la charge de l'entrée de régulation de la pompe tout en empêchant le fluide de quitter le circuit de détection de charge pour s'écouler vers la pompe éloignée (18). Une section de soupapes (13, 14, 15) qui règle l'écoulement de fluide entre la pompe (18) et l'actionneur (20) comprend une vanne de régulation de pression (48) munie d'un piston (64) et d'un tiroir cylindrique (60), laquelle commande une différence de pression de part et d'autre d'un orifice (44) de vanne de régulation principale en se déplaçant à l'intérieur d'un alésage (62) en réponse à une différence de pression entre la pression d'alimentation de la pompe et la pression de détection de charge. Le piston (64) et le tiroir cylindrique (60) se séparent également afin d'empêcher l'écoulement de fluide vers l'actionneur (20) lorsque la contre-pression de la charge dépasse la pression d'alimentation de la pompe.
Patent CA-2255526-C (CA)
Title: Psa process and system using simultaneous top and bottom evacuation of adsorbent bed
Inventor: SMOLAREK JAMES
IPC: B01D53/04
Filed: 1998-12-07
Granted: 2003-04-15
Abstract: The present invention relates to the the recovery of low purity oxygen gas from the top of an adsorber vessel  into a receiver tank to be used as a purge reflux gas.  Recovery of void gas results in improved process efficiency. The invention may also employ a simultaneous evacuation from the top of the adsorber to remove the lower purity void gas while the main waste evacuation step is conducted.  This simultaneous co-current top void gas recovery and counter-current waste evacuation from both ends of the adsorber allows for an overall increase in product recovery of between 3-5% over conventional processes.
Patent CA-2257521-C (CA)
Inventor: SMITH JERRY R
IPC: H01H47/22
Filed: 1997-07-09
Granted: 2001-12-04
Abstract: Cette invention concerne un dispositif de commutation électromécanique (10), lequel permet d'effectuer automatiquement l'interconnexion de la polarité voulue entre les bornes de deux sources d'alimentation électrique (14, 12). Ce dispositif fait appel à un commutateur (34) bipolaire et bidirectionnel (DPDT) qui possède trois paires de contacts. Une première paire de conducteurs est connectée à deux paires de contacts de manière à inverser la polarité lors de la commutation, tandis qu'une seconde paire de conducteurs est connectée à l'autre paire de contacts. Une unité de commande (36) du commutateur comprend plusieurs bobines qui se trouvent en communication électrique avec les deux paires de conducteurs. Ces bobines sont conçues et disposées de manière à entraîner un dispositif d'actionnement, lequel va faire passer automatiquement le commutateur (34) à l'état de polarité correct lorsque les deux paires de conducteurs sont connectées aux sources d'alimentation électrique respectives (14, 12), ceci indépendamment des connexions des conducteurs. Cette invention, qui consiste en un câble de démarrage pour batteries, permet de connecter automatiquement les bornes similaires de deux batteries (14, 12). Cette invention concerne également le procédé permettant de mettre en oeuvre ce dispositif.
Patent CA-2260941-C (CA)
Inventor: WALKER N EDWARD
IPC: H02M5/257
Filed: 1997-07-23
Granted: 2001-03-06
Abstract: Apparatus and methods for AC power regulation for a wide range of complex capacitive and inductive loads which provide substantial reduction in power consumption while also providing a leading power factor. The system is self-adjusting for a wide range of loads and can reduce power consumption by 25 percent in lighting loads while producing minimal reduction in light output.  The system utilizes a main switch (17) consisting of back-to-back MOS  controlled Thyristor devices (MCTs) and a parallel capacitor bank (70) in series with the load (4). The main switch is initially turned off slightly in advance of the load current zero crossing, and this in combination with the capacitor bank (70) allows power to be reduced in a low noise fashion. The turn-off time is advanced gradually to regulate power at a target reduced level. At the target power level, load phase angle is measured and maintained to control the power savings ratio.
Patent CA-2266995-C (CA)
Inventor: KUNZ WILLIAM E
IPC: H01R13/719
Filed: 1999-03-25
Granted: 2004-09-14
Abstract: A modular connector comprises an insulative housing that accepts an RJ-45 style jack from its front, and a molded insert from the opposite side. Each molded insert includes a signal conditioning circuit that provides a proper electrical coupling between a physical interface device (PHY) or encoder/decoder and an unshielded twisted pair (UTP) cable to a high speed computer network. Such signal conditioning comprises a common-mode choke for each of the transmitter and receiver circuit pairs that are constructed from twin-lead transmission line sections. Each common mode choke comprises two stiff wire conductors that are brought together at a uniform critical separation distance for a critical longitudinal run length. The wire size, surrounding dielectric, separation distance, and run length are all controlled to arrive at a common-mode choke equivalent with series inductance, transformer coupling, and capacitance values suitable for use with 100BASE-T Fast Ethernet and 1000BASE-T Gigabit Ethernet.
Patent CA-2269475-C (CA)
Inventor: GUEDIRA NOUR-EDDINE
IPC: C11D11/02
Filed: 1997-10-14
Granted: 2002-12-24
Abstract: There is provided a process for preparing a detergent composition said proce ss comprising spray drying a slurry of organic and inorganic material, weight ratio of between 0.34 and 0.64 and said slurry having a moisture content of between 25 % and 50 %.
Patent CA-2277381-C (CA)
Title: Debitmetre de turbine a gaz
Inventor: SCHIEBER WILLIAM M
IPC: G01F1/08
Filed: 1998-01-21
Granted: 2007-09-18
Abstract: Un débitmètre (20) de turbine à gaz comprend une cartouche de mesure (36) comprenant un rotor de mesure (38) qui tourne dans un sens à une vitesse approximativement proportionnelle à la vitesse d'un gaz s'écoulant dans le débitmètre (20) et un rotor de référence monté en aval du rotor de mesure (38) qui tourne à contre-sens du rotor de mesure. Un redresseur (28) de l'écoulement d'entrée situé en amont du rotor de mesure contraint le gaz à s'écouler de manière sensiblement axiale dans le débitmètre alors qu'un redresseur de l'écoulement de référence monté entre le rotor de mesure et le rotor de référence contraint le gaz à s'écouler sensiblement axialement dans le débitmètre. Un processeur de signal donne une indication de la précision du débitmètre de turbine à gaz, fondée sur le quotient d'un signal de mesure qui est proportionnel à la vitesse de rotation du rotor de mesure divisé par un signal de référence lui-même proportionnel à la vitesse de rotation du rotor de référence.
Patent CA-2286335-C (CA)
Title: Methods of obtaining antigens specific for fungi, antibodies for such antigens, and diagnosis of disease using such antigens and/or antibodies
Inventor: WEIL GARY J
IPC: C12N1/14
Filed: 1998-04-15
Granted: 2007-02-27
Abstract: A method for identifying a protein antigen to a target fungus is disclosed.  The method comprises screening expressed proteins from a cDNA gene expression library with antisera to the target fungus and cross-screening with antisera to a nontarget fungus. Antibodies to the protein antigen are also disclosed. Methods for detecting the presence or absence of the antibodies or of the protein antigen are also disclosed, as well as kits for performing such assays. In preferred embodiments, the target fungus is H. capsulatum.
Patent CA-2289386-C (CA)
Inventor: LUPKE STEFAN A
IPC: B26F1/00
Filed: 1999-11-12
Granted: 2004-04-20
Abstract: A tube cutting device produces a plurality of cuts spaced around tubing passed through the device. The device comprises a plurality of rotatable members located at different circumferential positions around a tube passage through the device. Each rotatable member is provided with a tube cutter which is directed at and away from the tube passage with rotation of each member. These rotatable members are adjustable radially of the tube passage for accommodating diametric variances in the tubing.
Patent CA-2298593-C (CA)
Title: Architecture destinee a un systeme hybride de commande en temps reel, et procede de fonctionnement associe
Inventor: RUDNICK JURGEN
IPC: G05B19/042
Filed: 1998-08-19
Granted: 2005-12-20
Abstract: L'invention concerne diverses architectures de système destinées à un système hybride de commande en temps réel, assisté par automate fini, ainsi que des procédés de fonctionnement associés. Dans un mode de réalisation d'une architecture de système, utile avec un automate fini pouvant commander un processus en temps réel et possédant plusieurs états ainsi que plusieurs gestionnaires commandant des transitions entre certains états de cette pluralité, un système appelant l'un des gestionnaires comprend une transition d'appel, laquelle surveille des conditions du processus en temps réel et provoque l'invocation du gestionnaire lorsque les conditions correspondent à des conditions déterminées, requises pour l'invocation du gestionnaire, la transition d'appel permettant ainsi au gestionnaire d'être invoqué sans une commande explicite.
Patent CA-2313679-C (CA)
Title: Electrical connector system with cross-talk compensation
Inventor: WININGS CLIFFORD L
IPC: H01R13/6466
Filed: 2000-07-10
Granted: 2008-01-29
Abstract: An electrical connector system with an electrical connector having signal contacts exhibiting unwanted cross-talk; and a circuit substrate engaging the connector. The substrate has a plurality of layers and at least first, second and third traces, each corresponding to a respective signal contact. The first trace includes: a first portion on at least one of the layers and adjacent a portion of the second trace in order to produce a first compensating cross-talk; a second portion on at least another of the plurality of layers and adjacent a portion of the third trace in order to produce a second compensating cross-talk. The substrate could also comprise a board having a first layer, a second layer, a plurality of inner layers between said first and second layers, and a ground plane on at least a lower surface of said board. The inner layers have at least first, second and third traces, with the first trace having portions adjacent the second and third traces in order to produce a first and a second compensating cross-talk, respectively. The system reduces unwanted cross-talk by introducing a first compensating cross-talk by inductively and capacitively coupling a first conductor and a second conductor adjacent the first conductor; and introducing a second compensating cross-talk by capacitively coupling the first conductor and a third conductor once removed from the first conductor. The compensating cross-talks offset the unwanted cross-talk to produce an acceptable cross--talk.
Patent CA-2315803-C (CA)
Title: Partial disc prosthesis
Inventor: GRAF HENRY
IPC: A61F2/30
Filed: 1998-12-18
Granted: 2008-02-19
Abstract: The invention concerns a prosthesis (2) designed to be inserted between two neighbouring vertebrae, comprising a core (4) made of an elastic material and covered, over part of its periphery, with a rigid material coating (6) designed to be in contact with the two neighbouring vertebrae. The core (4) comprises, in transverse cross-section, two end portions (8) linked by a median portion (12) and said coating includes two caps (6) provided with a threading and covering respectively at least partially the external periphery of said end portions (8), the distance separating said caps increasing towards the prosthesis front part. Said prosthesis can easily be inserted and has excellent stability inside the intervertebral space.
Patent CA-2315938-C (CA)
Inventor: FUHRMANN KARL-FRIEDRICH
IPC: B21B39/00
Filed: 2000-08-14
Granted: 2008-11-25
Abstract: Descaling device for hydromechanically descaling metal strip has first and second spray nozzles arranged adjacent one another in first and second spray nozzle rows transverse to the transport direction with several first and second spray nozzle rows successively arranged in the transport direction above a top side and underneath a bottom side of the metal strip to spray high pressure water thereto. First catch troughs are correlated with the first spray nozzles to catch water thereof. The first spray nozzle rows and first catch troughs are pivotable about a pivot axis and vertically adjustable relative to the top side by a signal from a measuring device.
Patent CA-2318964-C (CA)
Inventor: WILLEMS ERIC ARNOLDUS WILHELMU
IPC: B65G39/20
Filed: 1999-01-12
Granted: 2008-04-29
Abstract: Conveyor device comprising a support surface, a link chain pivoting parallel to the support surface, support elements arranged on the links, wherein at least in a bend of the guide, the links rest on the guide through associated rollers (14), wherein the rollers are arranged in the guide such that the flanks of the links run along the rollers, wherein as seen in the direction perpendicularly of the support surface, the flanks comprise an inward curved surface (15) and wherein the radius of the curved surface corresponds with the radius of a bend in the guide.
Patent CA-2321014-C (CA)
Title: Single action audio prompt interface utilising binary state time domain multiple selection protocol
Inventor: TOUPIN PAUL M
IPC: H04M1/72475
Filed: 2000-09-29
Granted: 2012-06-19
Abstract: An interface protocol for the functional manipulation of complex devices such as personal telecommunication devices without the necessity of the visual feedback via textual or graphic data, wherein the sensor functions change with time rather than placement, so that a user action biases a binary state switch, which is correlated to a timed audible audio data stream, the correlation indicating the desired action selected by the user. The device can be embedded in a product such as a plush toy without altering the external aesthetics of the product.
Patent CA-2321313-C (CA)
Title: Nonaqueous electrolyte secondary battery
Inventor: HATAKE SHINJI
IPC: H01M4/58
Filed: 2000-09-27
Granted: 2009-12-22
Abstract: A nonaqueous electrolyte secondary battery is provided with a positive electrode including a positive-electrode active material, a negative electrode including a negative--electrode active material, and a nonaqueous electrolyte solution. The negative electrode further includes carbon fibers and carbon flakes. The synergistic effects of the improved retention of the electrolyte solution by the carbon fibers and the improved conductivity between the active material particles by the carbon flakes facilitate doping/undoping of lithium in a high-load current mode and increase the capacity of the battery in the high-load current mode.
Patent CA-2324131-C (CA)
Inventor: SHELTON JEFFREY N
IPC: G01N21/01
Filed: 2000-10-24
Granted: 2007-07-31
Abstract: A capillary hematocrit separation structure is included within a housing having a fluid inlet port, a reaction region, and a capillary pathway connecting the inlet port and the reaction region. The capillary pathway is dimensioned so that the driving force for the movement of liquid through the capillary pathway arises from capillary pressure. A plurality of obstructions are fixed in the capillary pathway, each obstruction having a concave portion facing toward the vented reaction region on the down stream side of the obstructions as viewed with reference to a liquid flowing from the inlet port to the reaction region. The capillary pathway in a hematocrit separation structure for a single drop sample size includes about 10 5 obstructions, each obstruction including a concave portion having a volume of between about -4 to 10 -5 µl for selectively receiving hematocrit.
Patent CA-2331712-C (CA)
Title: Method of and system for processing multicomponent seismic data
Inventor: ZHU XIANHUAI
IPC: G01V1/28
Filed: 1999-03-03
Granted: 2007-04-24
Abstract: Methods and systems are provided for orientation of multicomponent geophones , for rotating traces, and for correcting polarity differences between traces. According to an example embodiment, a receiver orientation angle is assigned, based on a determination of an angle between one or more horizontal components and one or more sources.</SD OAB>
Patent CA-2334106-C (CA)
Title: Method and system for measuring data in a fluid transportation conduit
Inventor: STEWART JOHN FOREMAN
IPC: E21B47/12
Filed: 1999-06-09
Granted: 2006-12-12
Abstract: A method and system are disclosed for measuring data in a fluid transportation conduit, such as a well for the production of oil and/or gas. The system employs one or more miniature sensing devices (4) which comprise sensing equipment that is contained in a preferably spherical nut shell which has an outer width which is smaller than the internal width of the conduit. One or more sensing . devices are released sequentially in the conduit and are induced to move in longitudinal direction through the conduit to measure data at desired intervals of time, without requiring a complex infrastructure.