baber/WOPTO huggingface dataset:
Patent CA-2282376-C (CA)
Inventor: TUTTLE JOHN R
IPC: G07C9/00
Filed: 1998-02-10
Granted: 2002-07-30
Abstract: A system for locating an individual in a facility, the system comprising a portable wireless transponder device borne by the individual; an interrogato r; and a plurality of antennas distributed in the facility, the antennas being selectively separately connected to the interrogator, the interrogator when connected to any of the antennas having a communications range covering less  than the area of the entire facility, the interrogator being configured to repeatedly transmit a wireless command to the portable wireless transponder device using alternating antennas, the portable wireless transponder device being configured to transmit data identifying the portable wireless transponder device in response to a command if the portable wireless transponder device is within communications range of the antenna sending the  command, the individual being locatable by determining with which antenna th e interrogator was able to establish communications with the portable wireless  transponder device.
Patent CA-2282875-C (CA)
Title: Methode de conduite d'un puits de production d'hydrocarbures active par injection de gaz
Inventor: LEMETAYER PIERRE
IPC: E21B43/12
Filed: 1999-09-20
Granted: 2007-01-02
Abstract: L'invention concerne une méthode de conduite d'un puits (1) de producti on d'hydrocarbures liquides et gazeux activé par injection de gaz, puits comprenant une colonne (2) de production munie d'une duse (9) de sortie à ouverture réglabl e, dans laquelle on injecte du gaz dont le débit est réglable au moyen d'une vanne ( 6) de contrôle, méthode caractérisée en ce qu'elle comporte une phase de démarrage qui consiste à dérouler les étapes suivantes: - une étape d'initiation de la production d'hydrocarbures, - une étape de mise en régime de production suivie d'une phase de production, phases au cours desquelles on agit sur la duse (9) de sortie et sur la vanne (6) de contrôle pour maintenir la stabilité du déb it des hydrocarbures produits. L'invention trouve son application dans l'exploitation des puits de pétrole à terre et en mer.
Patent CA-2284761-C (CA)
Inventor: ICHIRYU TAKU
IPC: F23R3/00
Filed: 1998-01-26
Granted: 2005-04-05
Abstract: It pertains to a combustion engine for a gas turbine which has, in a space within the casing pressurized by compressed air fed into it from a compressor, a number of combustors consisting of combustion chambers and tail pipes connected to them. The invention applies to a air bypass control device which can bypass a portion of the compressed air in the space within the casing into the tail pipe connected to a combustion chamber via a control valve and a bypass channel. The invention is distinguished in the following ways. It includes a valve mechanism including a flat sliding ring, and a valve operating mechanism. The valve mechanism intersects a number of bypass air channels each of which is connected to a pipe located in the space inside the casing. The bypass air channels are located at a circular position in the casing. A number of openings are arranged in the flat sliding ring of the valve mechanism corresponding to the number of bypass air channels for bypassing the air to the bypass air channels. The valve operating mechanism for the valve, one end of which is connected to the flat sliding ring, causes the flat sliding ring to rotate back and forth in the circumferential direction.      When the valve operating mechanism rotates the flat sliding ring through a certain angle, the openings in the flat sliding ring rotate so as to coincide with or move away from the openings of the bypass channels. In this way it is possible to control the area of the openings of the bypass channels. The control valve mechanism is made up of a flat sliding ring with a number of openings which corresponds to the number of bypass channels, and a ring supporting base which supports the flat sliding ring in such a way that the flat sliding ring can slide freely in the circumferential direction. One side of the openings of the flat sliding ring opens into the space in the casing, and the other side of the openings opens into the opening of the bypass channel when it is rotated. A portion of the compressed air from the pressured air space in the casing can be conducted through the ring openings into the openings of the bypass channels.
Patent CA-2287176-C (CA)
Title: 3-cyano-2,4,5-trifluoro-benzoyl fluoride and intermediate products for the production thereof
Inventor: WOLFRUM PETER
IPC: G01C22/00
Filed: 1998-04-14
Granted: 2007-08-07
Abstract: The present invention relates to 3-cyano-2,4,5-trifluorobenzoyl fluoride and to intermediates for its preparation and to the process for the preparation of 3-cyano-2,4,5-trifluoro-benzoyl fluoride, which starts from 5-fluoro-1,3-xylene (VIII); which is bichlorinated in the ring in the presence of a catalyst under ionic conditions to give 2,4-dichloro-5-fluoro-1,3-dimethylbenzene (VII). The latter is chlorinated in the side chains under free-radical conditions to give 2,4-dichloro-5-fluoro-3-dichloromethyl-1-trichloromethylbenzene (VI). The latter is hydrolysed via 2,4-dichloro-5-fluoro-3-dichiuromethylbenzoic acid (V), which can be isolated if necessary, to give 2,4-dichloro-5-fluoro-3-formyl-benzoic acid (IV), the aldehyde group of which is reacted to give 2,4-dichloro-5-fluoro-3-N-hydroxyiminomethyl-benzoic acid (III), from which, with simultaneous conversion of the carboxyl group into the chlorocarbonyl group, water is eliminated using an acid chloride to give the nitrile 2,4-dichloro-3-cyano-5-fluoro-benzoyl chloride (II). Finally, the nitrile is subjected to fluorine/chlorine exchange.
Patent CA-2288747-C (CA)
Inventor: WRIGHT PAUL
IPC: A61M15/00
Filed: 1998-05-08
Granted: 2008-01-15
Abstract: An inhaler for administering medicament by inhalation and a method of manufacturing a housing of the same, the inhaler including a housing formed as a single-piece moulding having a first portion (18) which, in normal use, comes into contact with medicament and the mouth or nose of a user through which medicament is inhaled and a second portion (20) which defines at least part of the outer surface of the housing and, in normal use, does not come into contact with medicament or the mouth or nose of a user through which medicament is inhaled, wherein the material constitution of at least part of the second portion (20) defining at least part of the outer surface of the housing is different to the material constitution of the first portion (18).
Patent CA-2297784-C (CA)
Title: Electronic image processing system
Inventor: ROSE DAVID L
IPC: G06Q10/10
Filed: 1998-06-30
Granted: 2009-05-26
Abstract: A system for creation of an image display such as electronic postcard (600). The system interacts with a user to create and configure the display. The user provides the image data to the system and optionally specifies a message and addressee (21) for the image display. The system creates the display, comprising the mixture of image and textual data (502), and sends a notification including identification of the display to a specified addressee (21), for instance, the recipient of th e postcard (600). The addressee (21) can then request receipt of the display from the system via identification information sent by the syste m.
Patent CA-2304875-C (CA)
Inventor: OWEN DONALD B
IPC: A01K1/035
Filed: 2000-04-07
Granted: 2006-06-13
Abstract: A heated bed for dogs, cats or other animals which can provide a selected amount of heat to the animal depending upon environmental temperatures. The bed includes a hollow blanket casing within which is disposed at least three layers of foam insulation material placed one on top of another. A removable heating element is interposed between two adjacent layers of the foam material and supplies heat to the animal resting on the bed. The amount of heat delivered to the animal is regulated by selectively positioning the heating element between different adjacent layers of the foam material. The heating element is connected to a power source via a step down transformer which converts high voltage energy into lower voltage energy to minimize the danger of serious shock to the animal.
Patent CA-2308611-C (CA)
Inventor: BOREL EDOUARD
IPC: B26D3/08
Filed: 2000-05-16
Granted: 2004-08-10
Abstract: A cutting/scoring method for at least one row of adjacent flat elements (3a, 5n) in a material in strip form (1), of which at least one cutting edge (3' - 5') or scoring line, transversely of said strip material (1), is straight and extends from one edge of said strip material (1) to the other, consisting in passing said strip material (1) between cutting/scoring cylinders (R1, R2) of a rotary cutting machine. There is created along said cutting edge (3' - 5') or said scoring line respectively, extending from one edge of said strip material (1) to the other, at least one offset (k, .alpha.) in the direction of transit of said strip material (1) so that said cutting edge (3' - 5') or said scoring line respectively does not coincide with the generatrices of said cylinders.
Patent CA-2312134-C (CA)
Inventor: TSUCHIYA MASAHIKO
IPC: B63H25/46
Filed: 2000-06-22
Granted: 2003-06-10
Abstract: To enable changing of course when a jet stream from a jet pump has stopped or is low. A nozzle 30 of a jet pump 20 is constructed so as to be rotatable, and a rudder 32 that does not project downwards further than a boat bottom 11a is provided at the nozzle 30. A rudder channel 18 for guiding water flow W to the rudder 32 is provided separately from a jet pump channel 24. It is preferable for the rudder 32 to be duct-shaped and it is preferable for the rudder channel 18 to be formed of a watercourse plate with an end at the front with respect to a direction of travel opening away from the boat body when driving of the jet pump 20 is halted or when the rotational speed of driving of the jet pump is a prescribed value or less.
Patent CA-2316159-C (CA)
Title: Prolonged release microcapsules
Inventor: OKADA HIROAKI
IPC: A61K38/08
Filed: 1991-02-11
Granted: 2008-04-29
Abstract: Disclosed is a use of a microcapsule of LH-RH or analogue thereof for suppressing initial burst of LH-RH without adding a drug-retaining substance. The microcapsule is produced by preparing a water-in-oil emulsion comprising an inner aqueous layer containing about 20 to 70% (w/w) of LH-RH  or analogue thereof and an oil layer containing a polymer having a lactic acid/glycolic acid ratio of 80/20 to 100/0, and then subjecting the water-in-oil emulsion to microencapsulation.
Patent CA-2316232-C (CA)
Title: A method and apparatus for reducing flicker in the television display of network application data
Inventor: BRIL VLAD
IPC: H04N5/445
Filed: 1998-12-14
Granted: 2009-08-11
Abstract: A television system (100) with an interlaced display screen for displaying network application data. Pixel data elements representing network application data display are received in a non-interlaced mode. The received data is filtered (480) to reduce sharp transitions in the display. The filtered data is provided in an interlaced format (490) for display on the television display screen. The interlaced image display is combined with the television signal display by selecting one of them on a point-by-point basis. Flicker is reduced substantially in the final display of network application data due to the filtering.
Patent CA-2316907-C (CA)
Inventor: HOWELL WILLIAM R
IPC: A63G25/00
Filed: 1999-01-25
Granted: 2004-05-25
Abstract: (57) Abstract A ride-on vehicle (10) for children having a chassis (12), a plurality of wheels (14) attached to the chassis (12), and a steering mechanism (18), the vehicle includes a molded plastic footrest (40) having a body portion (44) and an end portion (50). The footrest being laterally slidable between a retracted position wherein the body portion is situated substantially within the chassis (12), and an extended position wherein at least part of the body portion is laterally disposed with respect to the chassis (12). In the extended position, the end portion (50) is a greater lateral distance from the chassis (12) than when the end portion (50) is in the retracted position. The vehicle (10) also has a decent mechanism (54) arranged to releasably hold the footrest in the retracted position and the extended position. The chassis (12) can include a channel (20) in which the footrest is laterally slidable.
Patent CA-2318770-C (CA)
Title: Wall exposed to wear, wear-resistant lining element and fastening means therefor
Inventor: MALMBERG MATS ANDERS
IPC: E04F13/21
Filed: 1998-12-09
Granted: 2008-10-07
Abstract: A wall exposed to wear has a wear lining which is made of a number of juxtaposed wear lining elements (11) of an elastomeric material, optionally in combination with another wear-resistant material. The wear lining elements are secured to their supporting surface (10) with the aid of fastening means comprising washers (20). Two opposite narrow faces (12) of the wear lining elements have V-shaped recesses (13). These are open towards this narrow face (12). The washers of the fastening means have V-shaped projections (21), the V legs of which are inserted into and abut against the bottom wall (16) of the recesses (13) or into shoulders formed in the recesses, after fastening the elements. The invention also concerns wear lining elements and fastening means with washers of this design.
Patent CA-2322242-C (CA)
Inventor: CORRIVEAU ARTHUR
IPC: B62B1/26
Filed: 2000-10-12
Granted: 2004-04-13
Abstract: A tool is disclosed for lifting desks and tables of different heights, without emptying or removing stuff thereon. The invention includes a vertically adjustable angled platform that includes two back wheels and an adjustable front piece with two rubber studs. When the tool is tilted backwards until the platform is level, the object is lifted maintaining a horizontal position. The object can then be wheeled to a different area using minimal strength.
Patent CA-2329357-C (CA)
Title: System and method for regulating message flow in a digital data network
Inventor: CLAYTON SHAWN A
IPC: G06F13/14
Filed: 1999-04-23
Granted: 2006-07-25
Abstract: A system (10) includes a plurality of computers (12) interconnected by a network including one or more switching nodes (11). The computers (12) transfer messages over virtual circuits established thereamong. The source and destination computers (12) schedule transmission and processing of messages on a round-robin, respectively. Each switching node (11) which forms pan of a path (13) for respective virtual circuits also forwards messages for virtual circuits in a round-robin manner. Round-robin transmission, forwarding and processing at the destination provides a degree of fairness in message transmission. In addition, messages are also transmitted in one or more cells in a round-robin, so as to reduce delays which may occur for short messages if a long message was transmitted in full for one virtual circuit before beginning transmission of a short message for another virtual circuit. For each virtual circuit, the destination computer (12) and each switching node (11) along the path (13) can generate a virtual circuit flow control message for transmission to the source computer (12) to temporarily limit transmission over the virtual circuit based on the predetermined thresholds, further providing fairness as among the virtual circuits. Furthermore, each switching node (11) or computer(12) can generate link flow control messages for transmission to neighboring devices (11, 12) in the network (10) to temporarily limit transmission thereto if the amount of resources taken up by all virtual circuits exceeds predetermined thresholds, so as to reduce the likelihood of message loss.
Patent CA-2330496-C (CA)
Inventor: FAVEROLLE FRANCINE
IPC: C08J7/046
Filed: 2000-02-14
Granted: 2007-07-17
Abstract: La lentille ophtalmique selon l'invention comprend un substrat en verre organique ayant des faces principales avant et arrière, au moins une couche de primaire déposée sur au moins une des faces principales du substrat, ladite couche de primaire comprenant un agrégat de particules au moins biphasiques dont une première phase est constituée d' un polymère P1 à caractère mou ayant une température de transition vitreuse (Tg) inférieure à 20 .degree.C et une deuxième phase est constituée par un polymère P2 à caractère dur ayant une température de transition vitreuse (Tg) supérieure à 50 .degree.C, et au moins une couch e d'une composition de revêtement anti-abrasion déposée sur la couche de primaire. Application aux verres de lunettes.
Patent CA-2330531-C (CA)
Inventor: KATCHANOV ALEXANDRE
IPC: G01N21/39
Filed: 1999-04-30
Granted: 2009-04-28
Abstract: The invention concerns a method for detecting gas traces with a semiconductor laser coupled with an optical resonant cavity containing a species to be analysed. The laser is coupled with the cavity so that the light is not projected back towards the laser when the cavity is in resonance mode. The laser supplies an amplified and fine-tuned emission on the re-injected frequency and, when a current pulse is applied thereon, its frequency moves from a predetermined initial frequency to a final predetermined frequency. The laser is excited by a first current pulse such that its frequency is sequentially locked on the cavity successive modes. The luminous intensity decreasing time in the cavity is measured at the end of the pulse and the excitation and measurement steps are repeated for successive current pulses, to cover a spectral range to be analysed.
Patent CA-2334156-C (CA)
Inventor: GHAEM SANJAR
IPC: G08B13/24
Filed: 1999-06-08
Granted: 2002-11-12
Abstract: A radio frequency identification tag (14) utilizes an antenna (22) formed in association with, and thus integral to, an article, package, package container, label and/or identification badge (10). In a preferred embodiment, a radio frequency identification tag circuit chip assembly (12) is secured to the article (10) and is electrically coupled to the antenna (22) formed on the article (10). Printing a conductive pattern on the article using conductive ink forms a preferred antenna.
Patent CA-2339190-C (CA)
Inventor: DIXEY MAUREEN
IPC: A61K31/192
Filed: 1999-07-28
Granted: 2008-11-18
Abstract: A solid sustained release pharmaceutical composition comprising a compressed mixture of a pharmacologically active ingredient and a sustained release carrier comprising xanthan gum characterised in that the xanthan gum is capable of dissolving in water at a concentration of 1 part by weight xanthan gum to 100 parts by weight water to form a solution having a transmittance (600 nm) of greater than 50 %. The clarified xanthan gum has an improved reproducibility in drug dissolutio n.
Patent CA-2341827-C (CA)
Title: Surface treating method of polished rice or the like
Inventor: ISOGAYA KEIICHI
IPC: A23P30/00
Filed: 2001-03-22
Granted: 2006-07-18
Abstract: The invention provides a treating method of forming a protection layer having strong abrasion resistance and oxidation resistance and having a thickness of micron order of a surface of a polished grain or a processed granular material obtained by kneading and solidifying a starch so as to make it hard to be changed in quality, thereby improving a storage capacity for a long time. Further, the invention provides a treating method of forming a fine particulate starch attached to the grain or the granular material into a paste state so as to combine with the protection layer. The surface treating method has a step of applying a high humidity hot wind to the polished grain or the granular material so as to heat a surface layer portion, a step of forming a starch in the heated portion into a paste state and further making the starch into an alpha state, and a step of cooling and forming a fine layer of the alpha starch on the surface portion.
Patent CA-2344479-C (CA)
Inventor: BAWENDI MOUNGI G
IPC: G01N33/533
Filed: 1999-09-17
Granted: 2010-03-23
Abstract: A water-soluble semiconductor nanocrystal capable of light emission is provided. The nanocrystal including a semiconductor nanocrystal core having a selected band gap energy, a shell layer overcoating the core comprised of a semiconductor material having a band gap energy greater than that of the semiconductor nanocrystal, and an outer layer comprised of a molecule having at least one linking group for attachment of the molecule to the overcoating shell layer and at least one hydrophilic group optionally spaced apart from the linking group by a hydrophobic region sufficient to prevent electron charge transfer across the hydrophobic region.
Patent CA-2349478-C (CA)
Title: Direct digital frequency synthesizer and a hybrid frequency synthesizer combining a direct digital frequency synthesizer and a phase locked loop
Inventor: KHAN NASSERULLAH
IPC: H03L7/18
Filed: 2001-06-01
Granted: 2004-08-24
Abstract: A direct digital frequency synthesizer and a hybrid frequency synthesizer combining the direct digital frequency synthesizer and a phase locked loop is provided. The direct digital frequency synthesizer includes a phase accumulator that is configured to generate a discrete phase signal. Spurious phase modulation in the discrete phase signal is reduced by a noise shaper, and the output of the noise shaper is then used to address a phase-to-amplitude translator. The phase-to-amplitude translator generates a discrete waveform which is converted to a continuous waveform by a digital to analog converter. The hybrid frequency synthesizer uses a mixer to combine a reference frequency generated by a reference source and a DDFS output signal generated by a direct digital frequency synthesizer. The output from the mixer is then coupled to the input of a phase locked loop which multiplies the mixer output to generate the frequency synthesizer output.
Patent CA-2349508-C (CA)
Inventor: ROSS BILL
IPC: C25B9/17
Filed: 2001-06-04
Granted: 2004-06-29
Abstract: A system for producing one or more gases for enhancing combustion in an internal combustion engine, the engine having an intake, the system comprising: an electrolysis cell, for generating one or more combustion enhancing gases under pressure; a gas conduit, for connecting the electrolysis cell to the internal combustion engine; and a flow regulator, operatively connected between the electrolysis cell and the intake of the engine, for regulating a flow of the combustion enhancing gases to the engine.
Patent CA-2351604-C (CA)
Inventor: HOGGARD DALE B
IPC: C04B35/58
Filed: 1999-11-16
Granted: 2007-02-06
Abstract: L'invention porte sur un matériau composite fritté sous pression comportant une phase continue de nitrure hexagonal de bore dans laquelle est dispersé un deuxième matériau consistant en (a) un nitrure métallique, de silicium, d'aluminium ou de titane, et (b) au moins un oxyde métallique stable ne comportant pas plus de 35 % en poids d'oxygène. Il s'est avéré que le susdit matériau présente un faible coefficient de dilatation thermique et de ce fait une bonne résistance aux chocs thermiques, et se caractérise en outre par sa faible mouillabilité par l'acier fondu qui lui confère une excellente résistance au métal liquide, et par sa résistance exceptionnelle à l'usure mécanique.
Patent CA-2357070-C (CA)
Inventor: TOWNSHEND BRENT
IPC: H04Q1/20
Filed: 1998-02-19
Granted: 2003-04-29
Abstract: A method of detecting the presence of robbed-bit signaling within the digital portion of a telephone network.      A communication system includes an encoder and a decoder.      The encoder has a digital connection to the digital portion of the telephone network. The digital portion of the telephone network is connected by an analog loop to the decoder. The method includes sending a predetermined pattern of PCM codewords from the encoder, through the telephone network, to the decoder. An error measurement is taken at the decoder. The presence of robbed-bit signaling is determined based upon the error measurement.