baber/WOPTO huggingface dataset:
Patent CA-2444092-A1 (CA)
Inventor: LI KENNETH K
IPC: F21V8/00
Filed: 2002-04-18
Abstract: A light recovery system for a projection display with a reflector having a first and a second focal points. A source of electro-magnetic radiation is disposed proximate to the first focal point of the reflector to emit rays of radiation that reflect from the reflector and converge substantially at the second focal point. A retro-reflector reflects at least a portion of the electromagnetic radiation that does not impinge directly on the reflector toward the reflector through the first focal point of the reflector to increase the flux intensity of the converging rays. A light pipe with an input surface and an output surface is disposed with the input surface proximate to the second focal point to collect and transmit substantially all of the radiation. A first reflector is disposed proximate to the output surface to transmit a first band of radiation while reflecting a second and third bands of radiation. A second reflector is disposed proximate to the output surface to transmit the second band of radiation while reflecting the first and third bands of radiation. A third reflector is disposed proximate to the output surface to transmit the third band of radiation while reflecting the first and second bands of radiation. In the alternative, a PBS is disposed proximate to the output surface to collect and polarize substantially all of the radiation into a radiation of a first polarization and a second polarization. Radiation of the first polarization is transmitted, while radiation of the second polarization is reflected toward the output surface. A wave plate is disposed in a path of the radiation of the second polarization.
Patent CA-2445920-A1 (CA)
Inventor: FELL DAVID A
IPC: A61F13/53
Filed: 2002-05-10
Abstract: An absorbent garment comprises a chassis and an absorbent element. The absorbent element is fixedly connected to the chassis at a first location and is detachably connected to at least one of the absorbent element and the chassis at a second location. The absorbent element comprises an absorbent material that expands from at least a first condition to a second condition.  The absorbent element detaches from at least one the absorbent element or the chassis at least a portion of the second location when the absorbent material expands to the second condition. The method for using the absorbent garment also is provided, together with a method for assembling the absorbent garment.
Patent CA-2446675-A1 (CA)
Inventor: RUDD WAYNE
IPC: E21B43/08
Filed: 2003-10-24
Abstract: A downhole filter comprises a tubular member having a wall defining a plurality of openings. The openings have an outer width less than an inner width. The parts of the opening defining the smaller width are defined by radially outer parts of the openings, such that particulates or sand prevented from passing through the openings will tend to be retained to the outside of the tubular member.
Patent CA-2446992-A1 (CA)
Title: Truck for railroad car
Inventor: TAKAHASHI KEISUKE
IPC: B61F3/00
Filed: 2003-10-27
Abstract: In a truck for railroad car capable of absorbing and reducing deformation due to torsional force acting on an end beam, end portions of right and left side frames 2a and 2b of a truck frame 2 are connected by an end beam 3. An antenna support member 4 is supported by the end beam 3. The end beam 3 includes antenna brackets 3a and 3b, as right and left support brackets, connected and fixed to outer end portions of the right and left side frames 2a and 2b by fastening tools, and a center bar 3c connected to inner end portions of the right and left antenna brackets 3a and 3b through rubber bushes 6 and 7 and having an antenna support member 4. The rubber bushes 6 and 7 are positioned at both sides of the antenna support member 4 of the end beam 3, include elastic rubber members 6a and 7a, and absorb the torsional force acting on the end beam 3 by elastic deformation of the elastic rubber members 6a and 7a.
Patent CA-2450733-A1 (CA)
Title: A configurable image scanning pattern optimizer
Inventor: LEVIN JEFFREY A
IPC: H04N7/26
Filed: 2002-06-13
Abstract: An apparatus and method of serializing frequency based image data in a digit al cinema system is described. At least one group of data that may be represent ed as a 16X16 block of data is compiled. Alternatively, a frame of data is compiled. The group of data is divided into four groups, each which may be represented as an 8X8 blocks. Each of the four 8X8 blocks of data are serialized using zig-zag scanning vertical scanning, and/or horizontal scanning.
Patent CA-2451294-A1 (CA)
Title: Multi-protocol field device and communication method
Inventor: LARSON BRENT H
IPC: G05B19/05
Filed: 2002-07-10
Abstract: A multi-protocol smart field device uses a Fieldbus communication protocol to communicate process control information and uses a HART communication protocol to enable local configuration of the field device via a hand-held HART  communicator. The multi-protocol smart field device includes a first communications interface communicatively coupled to a digital data bus that is adapted to process HART communications which are received from and which are sent to a HART hand-held communicator. The multi-protocol smart field device further includes a second communications interface communicatively coupled to the digital data bus that is adapted to process Fieldbus communications.  Additionally, the multi-protocol smart field device includes a first filter coupled between the first communications interface and the digital data bus that substantially attenuates signals having frequencies associated with Fieldbus communications and a second filter coupled between the second communications interface and the digital data bus that substantially attenuates signals having frequencies associated with HART communications.
Patent CA-2453991-A1 (CA)
Title: New antitumoral derivatives of et-743
Inventor: CUEVAS CARMEN
IPC: C07D515/22
Filed: 2002-07-17
Abstract: Derivatives of Et-743 or Et-770 or Et-729 are provided. The derivatives are of the general formula (Ia) wherein the substituent groups take various permitted meanings.
Patent CA-2454974-A1 (CA)
Inventor: SHAFFER RONALD L II
IPC: H04L9/32
Filed: 2004-01-09
Abstract: A transmitting device (100) generates a message (102). The message has a message length (104) and comprises message data (106). A key input (108) is identified, and a message authentication key (112) is derived based on the key input and the message length. Based on the message authentication key and the message data, a message authentication code (118) is derived, which is used to authenticate the message.
Patent CA-2455558-A1 (CA)
Title: Sliding sun visor
Inventor: PICKEN ALAN DEAN
IPC: B60J3/02
Filed: 2002-07-25
Abstract: A sun visor assembly for an automotive vehicle includes a sun visor panel having generally planar opposing sides sandwiched together to define a pocke t therebetween. A longitudinally extending support rod is positioned between t he opposing sides of the panel for supporting the panel in the interior of the vehicle. An adjustment mechanism is coupled between the support rod and the sun visor panel for providing selective sliding movement of the sun visor panel for providing selective sliding movement of the sun visor panel along the support rod between a retracted position and an extended position. The adjustement mechanism includes a support frame secured to the visor panel having an upper rail forming a longitudinal rack, a guide carriage secured t o the support rod and slidebly coupled to the support frame, and a gear rotatable supported by the carriage and meshed with the rack for guiding the sun visor panel along the support rod between the retracted and extended positions.
Patent CA-2458732-A1 (CA)
Inventor: KING TOBIN ALLEN
IPC: B41J2/14
Filed: 2002-08-06
Abstract: A keyboard (10) includes a housing (12). An alphanumeric keypad (14) is carried by the housing (12). A printer (16) is arranged in the housing (12).
Patent CA-2458961-A1 (CA)
Title: Ocular diagnosis of alzheimer's disease
Inventor: GOLDSTEIN LEE E
IPC: G01N33/53
Filed: 2002-04-25
Abstract: The invention features a method of diagnosing or providing a prognosis regarding the state of Alzheimer's Disease in a mammal by contacting an ocular tissue with a detectably-labeled compound, which binds to an amyloid protein.  An increase in binding of the compound to the ocular tissue compared to a normal control level of binding indicates that the mammal is suffering from or is at risk of developing Alzheimer's Disease.
Patent CA-2459518-A1 (CA)
Title: Frequency selective transient voltage protector
Inventor: KNIGGE VINCENT L
IPC: H04M3/18
Filed: 2002-12-12
Abstract: A frequency selective transient voltage protector (FSTVP) circuit that may be used in connection with a communication line over which POTS and DSL service may be simultaneously provided. The FSTVP circuit attenuates high frequency transient voltages that exceed a predetermined voltage level, while permitting low frequency, generally high voltage signals (e.g., ring signals) and high frequency, low voltage signals (e.g., DSL signals) to pass with little or no attenuation. The FSTVP circuit comprises a frequency selective network (that comprises a frequency discriminator and a voltage discriminator) connected to an overvoltage protection device that shunts any high frequency transient voltages thus protecting devices connected downstream along the communications line from damage. The frequency selective network is tuned to gate the overvoltage protection device when the frequency and voltage of a signal present on the communication line exceed predetermined values.
Patent CA-2459757-A1 (CA)
Inventor: KLEY HANS-PETER
IPC: A61K31/522
Filed: 2002-09-17
Abstract: La présente invention concerne l'administration combinée d'inhibiteurs de PDE4 et d'AINS permettant de traiter une maladie inflammatoire et/ou un trouble associé à une inflammation tout en réduisant au minimum les effets secondaires gastro-intestinaux, tels que les érosions gastriques et l'ulcère, qui sont fréquemment associés à l'utilisation d'AINS.
Patent CA-2462103-A1 (CA)
Inventor: GROSS JON
IPC: G08G1/16
Filed: 2001-10-01
Abstract: A system to allow emergency vehicles operators to obtain graphic data regarding other emergency vehicles (2) that may pose threats of collision.  Automatic signaling takes place between emergency vehicles (2) within range of each other to transmit directional data regarding the direction of travel of each emergency vehicle (2). This data is correlated to derive directional vectors relative to each other that are displayed so that the operator can quickly determine the direction of other vehicles with respect to his own. The system includes equipment for preempting traffic signals (4) by selected emergency vehicles (2), and for informing other emergency vehicles (2) that a traffic signal has been preempted.
Patent CA-2462433-A1 (CA)
Inventor: OHANIAN TAVIT
IPC: H04L12/24
Filed: 2002-10-05
Abstract: A distributed provisioning system has a central directory server (102) and a number of distributed provisioning servers (104). The provisioning servers (104) connect to the central directory server (102) for provisioning information, and for provisioning information for user access devices that need provisioning. The central directory server (102) stores the provisioning information for the provisioning servers (104) in uniquely accessible restricted access locations of a database, and maintains provisioning information for user access devices in a globally available location of the database.
Patent CA-2463371-A1 (CA)
Inventor: WHEELER ROBERT P JR
IPC: B21J1/02
Filed: 2002-10-23
Abstract: A method for cold forming a flattened, end-threaded rod (10) into a U-bolt (20) answers the need for high-strength steel rods that can be bent into flattened U-bolts by spring and suspension repair facilities or the like. By controlling the amount of work put into the end-threaded flattened rod (10) during bending, it is possible to manufacture a flattened, end-threaded rod from a high-strength steel that can be successfully cold bent into a U-bolt (20). The amount or degree of flattening and the radius of the U-bolt are variables which applicant controls to successfully cold bend a high-strength steel flattened rod (10) into a U-bolt (20). Therefore the spring and suspension repair facility avoids the need to heat the flattened rods for warm forming and, instead, can maintain an inventory of end-threaded and flattened rods for cold forming into flattened U-bolt comply with OEM designs when modifying or repairing vehicles.
Patent CA-2463497-A1 (CA)
Title: Systeme d'apprentissage permettant des interactions separees professeur-eleve sur des canaux interactifs selectionnes
Inventor: STUPPY JOHN J
IPC: G06Q30/00
Filed: 2002-10-15
Abstract: L'invention porte sur un système d'apprentissage comportant une station professeur et plusieurs stations élèves et permettant de tenir des sessions entre eux sur plusieurs canaux interactifs de télécommunications. C'est la station professeur qui sélectionne l'un des canaux interactifs pour communiquer avec l'une des stations élèves; le professeur peut donc interagir séparément avec chacun des élèves sur les canaux respectifs correspondants.
Patent CA-2466056-A1 (CA)
Title: Cleaning wipe
Inventor: SUAZON LAMBERTA
IPC: C11D1/04
Filed: 2002-11-12
Abstract: A dishwashing cleaning wipe comprising a single layer needle punched fabric wherein the fabric is impregnated with a cleaning composition.
Patent CA-2467813-A1 (CA)
Inventor: CREIGHTON JONATHAN
IPC: G06F15/173
Filed: 2002-12-02
Abstract: L'invention porte sur une ressource composite comprenant une pluralité d'éléments dont chacun est capable d'assurer un service comparable. Un coordinateur surveille l'état de chaque élément de la ressource composite. Un composant demande le service au coordinateur qui fait en sorte que le service soit assuré au composant par un élément particulier de la ressource composite. Lorsque l'élément particulier cesse d'être actif, c'est un autre élément de la ressource composite qui vient assurer automatiquement le service au composant. L'état de la ressource composite fait l'objet d'une tenue é jour indépendante de l'état des différents éléments de la ressource composite.
Patent CA-2469078-A1 (CA)
Inventor: LEDGER PHILIP WILLIAM
IPC: A61K38/095
Filed: 2002-12-05
Abstract: L'invention concerne des procédés servant à désensibiliser un individu à un antigène polypeptidique sélectionné. Les procédés selon l'invention comprennent l'administration de peptides provenant d'un antigène polypeptidique contenant un épitope des cellules T de façon à établir un environnement tolérogénique, c'est-à-dire un état d'hyporéactivité à ces peptides. L'antigène polypeptidique sélectionné est alors administré de sorte que l'état d'hyporéactivité et la co-administration de l'antigène sélectionné suffisent à désensibiliser l'individu à l'antigène polypeptidique. L'invention concerne également des systèmes thérapeutiques utilisés dans les procédés selon l'invention, ainsi que l'utilisation d'antigènes polypeptidiques et de peptides dans la fabrication de médicaments utilisés dans les procédés selon l'invention.
Patent CA-2469159-A1 (CA)
Inventor: DEGROOT PAUL J
IPC: A61B5/05
Filed: 2002-12-03
Abstract: La présente invention concerne des structures et des procédés permettant d'apporter une quantité commandable d'énergie à un patient par une compensation automatique de l'impédance de charge détectée par un défibrillateur à synchronisation automatique implantable (ICD). Cette invention utilise une technologie de convertisseur de puissance à commutation haute vitesse destinée à générer efficacement des oscillogrammes arbitraires de haute énergie. Contrairement à un amplificateur linéaire, ces convertisseurs de puissance à commutation délivrent des oscillogrammes de haute énergie avec une efficacité qui est indépendante de la taille et de l'amplitude de l'oscillogramme recherché. Un ICD qui utilise un convertisseur de puissance à commutation pour délivrer l'énergie souhaitée au patient stocke l'énergie à délivrer dans un condensateur de stockage. Ce convertisseur transforme ensuite cette énergie en un oscillogramme commandé par le courant ou commandé par la tension de sortie arbitrairement mis en forme par commutation du condensateur de stockage dans le circuit de sortie et hors du circuit de sortie à haute vitesse. L'oscillogramme est constitué, de préférence, d'un oscillogramme de type rampe.
Patent CA-2469262-A1 (CA)
Inventor: GEYER NORBERT
IPC: F01L1/46
Filed: 2002-11-16
Abstract: The invention relates to a guide rail for the valve gear of an internal combustion engine comprising, inside the rail (1), accommodating spaces (2), which are situated one behind the other in an interspaced manner and accommodate valve lifters (3). According to the invention, flattenings are provided on the outer surface of the valve lifter (3) in order to prevent a valve lifter (3) from rotating about its central longitudinal axis. These flattenings rest against flattenings (6) of the guide rail (1) that are located inside the assigned accommodating space (2). According to the invention, an insertion borehole (4) is allocated to each accommodating space (2) of the guide rail (1), into which the valve lifter (3) with its trumpet-like end (5) shaped thereon is inserted in the direction of its longitudinal axis, is subsequently displaced, in a manner that is parallel to the axis, up to the flattenings (6) of the guide rail (1) that act as turning prevention surfaces and, afterwards, is slightly displaced once again in an axial direction.
Patent CA-2472394-A1 (CA)
Inventor: VOKEY KENNETH ALBERTO
IPC: B60S9/04
Filed: 2004-06-01
Abstract: A vehicle trailer with a frame independently suspended on a pair of wheels and an articulating bed movable between a raised transport position and a lowered loading position.
Patent CA-2474525-A1 (CA)
Inventor: BRIOT PATRICK
IPC: B01J29/08
Filed: 2003-01-22
Abstract: Process for desulfurization of an effluent for cracking or steam-cracking hydrocarbons, more particularly a gasoline for example for catalytic cracking that comprises the elimination of thiophenic compounds by alkylation of these compounds, followed by a distillation, a hydrocracking of said alkyl-thiophenic compounds, then a hydrodesulfurization of the effluent that is obtained from the hydrocracking zone. In a preferred embodiment, this process comprises a preliminary stage for separating the cracking or steam-cracking effluent into three fractions, and proposes sending to the alkylation stage only the intermediate fraction that is low in heavy basic nitrogen-containing compounds that are initially present in the effluents that are to be alkylated.
Patent CA-2476557-A1 (CA)
Inventor: YAMAKAWA HIROHITO
IPC: C12Q1/68
Filed: 2002-09-26
Abstract: L'invention concerne un procédé de test permettant de contrôler la présence/l'absence d'un composant spécifique dans un aliment. Ce procédé consiste à effectuer une PCR en utilisant des amorces conçues sur la base de données dérivées d'une partie du gène de ce composant spécifique. Ce procédé est très utile pour la détection d'un composant présent sous forme de traces dans un aliment ou pour identifier un allergène nocif.
Patent CA-2476970-A1 (CA)
Inventor: ALON YAIR
IPC: G01S7/40
Filed: 2004-08-10
Abstract: A radar based application programmable waveform generator component of an apparatus generates a waveform and controls a phase and an amplitude of one or more parts of the waveform.
Patent CA-2483795-A1 (CA)
Title: System and method for automatically setting up a universal remote control
Inventor: HAYES PATRICK H
IPC: H04L12/28
Filed: 2003-05-16
Abstract: A system and method for configuring a remote control (220) to command the operation of appliances (226), to capture demographic data, and to provide services, such as automated warranty registration, instructions, viewing guides, etc., relevant to the appliances is provided. The system includes a database and associated server (300) that are located remotely from the remo te control and accessible via a network connection. Command codes, graphical us er interface elements, and services are accessed and downloaded to the remote control (220), as appropriate, using data supplied to the server that identifies the appliances and/or functional capabilities of the appliances. This data can be supplied by the appliances directly or can be obtained from other sources such as barcode labels, network devices, etc.
Patent CA-2484326-A1 (CA)
Inventor: MAK JOHN
IPC: F25J3/02
Filed: 2002-05-08
Abstract: An NGL recovery plant includes a demethanizer (7) in which internally generated and subcooled lean oil absorbs CO2 and C2 from a gas stream (11), thereby preventing build-up and freezing problems associated with CO2, especially where the feed gas has a CO2 treatment at ethane recoveries above 90% and propane recoveries of at least 99%.
Patent CA-2485418-A1 (CA)
Title: Crystallization system using homogenization
Inventor: AKITI OTUTE
IPC: B01D9/00
Filed: 2003-04-21
Abstract: A first solution and a second solution are supplied to the inlet conduit of a chamber. The chamber includes a stator formed of spaced stationery blades within which a rotor with spaced blades is rotatably received. As the rotor is rotated, high shear mixing forces are applied to the solutions and crystallization take place within the chamber. Additional mixing of the product can take place after it leaves the chamber. Seed material can be introduced to the chamber and recirculated from the inlet to the outlet as the process is performed. The process can be used to combine a solution of the material to be crystallized dissolved in a solvent and an anti-solvent solution. Alternatively, solutions containing first and second reactive intermediates in solvents can be combined under conditions of temperature and pressure that permit reaction of the first and second reactive intermediates to produce a reaction product of limited solubility in the solvent mixture.
Patent CA-2486206-A1 (CA)
Inventor: HOFFHEIMER CRAIG R
IPC: B24D13/06
Filed: 2004-10-28
Abstract: A flap wheel includes a hub with axially extending slots for receiving discrete packs, each pack including a clip receivable in the slot with walls projecting beyond the slot, and end caps fitting on the ends of the hub and including fingers interlaced with the ends of projecting packs projecting beyond the hub and dampening vibrations between the hub and packs. The end caps not only confine the flap packs in the hub slots, but also engage the projecting ends of the flap packs to dampen vibrations between the flap packs and the hub, and center the hub and tool on its axis of rotation.
Patent CA-2486713-A1 (CA)
Inventor: SNELL DORAIN L
IPC: H04L9/06
Filed: 2003-05-23
Abstract: L'invention concerne un procédé cryptographique et un appareil associé implémentent la norme de chiffrement Rijndael - AES. Un perfectionnement consiste à générer les clés de ronde de déchiffrement (wÝi¨) ronde par ronde à partir des clés de ronde Nk finales sauvegardées d'une précédente opération de programmation de clé de chiffrement. De cette façon, la capacité de mémoire et d'attente requises est minimisée. Des boîtes de substitution (41¿0? à 41¿3?) pour la génération de clé AES et l'opération de chiffrage elle-même, peuvent être implémentées à plusieurs reprises de différentes manières avec différentes signatures de puissance, avec une sélection pseudo-aléatoire (39¿o? à 39¿3?, 41¿0? à 41¿3?) de la voie d'accès pour les différents octets devant être substitués. L'opération de mélange préalable (73) s'effectue en même temps (72, 83) que la génération des premières clés de ronde et un faux circuit (Fig. 13) ayant une temporisation sensiblement identique au vrai circuit de mélange préalable ajoute un bruit consommation d'énergie au mélange préalable.