baber/WOPTO huggingface dataset:
Patent CA-2300514-C (CA)
Inventor: STERLING ROBERT LAUREL
IPC: E01F5/00
Filed: 2000-03-10
Granted: 2007-08-21
Abstract: A method for thawing frozen road culverts which includes the following steps. A first step involves providing a collapsible tube having an interior cavity and opposed ends. The opposed ends are closed by fluid impervious end closures. A second step involves positioning the collapsible tube in a road culvert prior to an ice blockage occurring. One of the opposed ends is positioned upstream of an anticipated ice blockage site and the other of the opposed ends positioned downstream past the anticipated ice blockage site. A third step involves applying a vacuum to the collapsible tube until the collapsible tube collapses. This creates a void in an ice blockage adjacent to the collapsed collapsible tube which serves as an immediate flow channel.
Patent CA-2305081-C (CA)
Inventor: NISHINA SHIGEKI
IPC: G01J3/18
Filed: 2000-04-12
Granted: 2003-03-25
Abstract: The monochromator and the spectrometric method are disclosed wherein the measured beam converted into a parallel beam by a first collimator is diffracted by a plane diffraction grating, then the diffracted beam is returned so that the diffracted beam after the return is separated from that before the return along rulings of the plane diffraction grating, the diffracted beam is diffracted again by the plane diffraction grating, then the beam condensed by a second collimator is allowed to pass through an exit slit.
Patent CA-2305513-C (CA)
Title: Transparent substrate bearing an anti-stain, hydrophobic coating, and process for making it
Inventor: CHEN DIN-GUO
IPC: C09D183/04
Filed: 1998-10-14
Granted: 2005-01-04
Abstract: A process is described for applying a thin-film, hydrophobic, oil-repellant, stain-resistant, optical coating to a transparent substrate. The coating is applied using a treatment solution that incorporates an organosilane in a solvent of water, alcohol, and ethylene glycol or glycerol, and an acid catalyst, with the organosilane having a preferred concentration in the range of 0.05 to 50 mmole per liter. The treatment solution preferably is prepared in a two-step procedure, in which the organosilane is first reacted in concentrated form and then diluted. After the treatment solution has been applied to the transparent substrate, e. g., by dip coating, the coated substrate is dried, preferably by flash-drying at room temperature and then heating it to a prescribed elevated temperature, in a prescribed humidity.
Patent CA-2307593-C (CA)
Inventor: WARNER R JAY
IPC: C07C69/16
Filed: 1997-10-31
Granted: 2007-01-16
Abstract: Cette invention a trait à un procédé amélioré de production d'esters d'acide carboxylique d'éthers monoalkyles d'alkylène-glycol par une estérification catalysée d'éther monoalkyle à l'aide d'un acide carboxylique. Dans une réalisation préférée, on fait réagir l'acide carboxylique et l'alcool dans un réacteur/colonne et l'on distille l'ester résultant dans un décanteur/extracteur en position supérieure sous forme de phase unique. On ajoute au mélange une petite quantité de solvant, un hydrocarbure, de préférence, ce qui provoque la séparation du distillat résultant en deux phases, l'une contenant le produit désiré et l'autre essentiellement de l'eau. On ne rencontre pas avec ce procédé, qui est applicable tant à un processus discontinu qu'à un processus en continu et qui permet d'obtenir des taux de production sensiblement plus élevés que ceux que l'on obtient à l'aide des procédés existants, les difficultés soulevées par la nécessité de séparer des azéotropes à points d'ébullition proches.
Patent CA-2309963-C (CA)
Title: Oxime de 6-o-alkyle erythromycine b
Inventor: MONTGOMERY STEPHEN H
IPC: A61K31/70
Filed: 1998-11-17
Granted: 2008-06-17
Abstract: L'invention concerne un procédé de préparation d'un dérivé 6-O-alkyle de 9-oxime érythromycine B et les intermédiaires utilisés dans la préparation de 6-O-alkyle 9-oxime érythromycine B. L'invention concerne également des compositions pharmaceutiques contenant un dérivé 6-O-alkyle de 9-oxime érythromycine B et leur utilisation pour le traitement d'infections bactériennes.
Patent CA-2313501-C (CA)
Inventor: TATARCZUK GEORGE
IPC: F23D14/52
Filed: 2000-07-10
Granted: 2004-10-19
Abstract: A gas bolt heater for loosening large bolts and studs has a hollow cylindrical housing defining a cylindrical chamber within the housing. A heating tube projecting from one end of the housing has a longitudinal bore. A first cylindrical insert closing the lower end of the chamber has a through opening communicating with the bore of the heating tube, and a second cylindrical insert located within an opposite end of the cylindrical housing has an elongate passage extending axially of the cylindrical housing. Downwardly convergent air passages in the second cylindrical insert have mouths distributed around the elongate passage, at a lower end of the passage, and an air supply duct communicates through the cylindrical housing with the air outlet passages. In use, air jets discharge from the mouths of the air outlet passages around an outlet end of a tip of an oxy-acetylene torch inserted through the elongate passage so that the flame of the oxy-acetylene torch is directed longitudinally of the cylindrical chamber and does not impinge directly on the wall of housing. The useful life of the gas bolt heater is thereby substantially extended.
Patent CA-2315112-C (CA)
Title: Coordinated cell discharge from atm queue
Inventor: LUNDBACK ARNE
IPC: H04W88/14
Filed: 1998-12-08
Granted: 2010-04-06
Abstract: An ATM switching node has an ATM switch (30) to which at least one inter-node physical link (56) is connected. In addition, a cell handling unit (32) connected to the ATM switch has a centralized queuing resource (230)which queues ATM cells which are to be routed through the ATM switch for transmission from the node on the physical link.  ATM cells destined for the physical link from the queuing resource are discharged from the queuing resource in accordance with a parameter of the physical link. The parameter ispreferably the capacity (e.g., transmission rate) of the physical link.  Inthe illustrated embodiment, the node is one of the following nodes of a cellular telecommunications network: a base station (42); a base station controller (44); a mobile switching center (46).
Patent CA-2322772-C (CA)
Title: Clavier hydrofuge
Inventor: BANG GARY M
IPC: G06F3/023
Filed: 2000-01-05
Granted: 2006-07-04
Abstract: La présente invention concerne un clavier conçu de manière que sa partie intérieure soit protégée de l'eau et des autres substances nuisibles se trouvant dans le milieu environnant. Le clavier peut également transmettre à un second dispositif un signal codé, de préférence infrarouge (IR), et ce, grâce à l'activation d'une touche, ledit signal correspondant uniquement à la touche activée.
Patent CA-2322826-C (CA)
Inventor: SANCHEZ CAYETANO III
IPC: A63F3/06
Filed: 1999-03-02
Granted: 2010-11-30
Abstract: A secure gaming ticket and validation method for gaming tickets includes storing validation information (110) and ticket identification information (120) in different locations. The stored information is then encoded to create an interim type of data (140), which is combined with prize information data (150) to create a validation signature (170). The validation signature (170) determines a win status of a gaming ticket.
Patent CA-2326708-C (CA)
Inventor: BATES CARY L
IPC: G06F3/0485
Filed: 2000-11-23
Granted: 2012-05-01
Abstract: An apparatus, program product and method dynamically adjust the scroll rate used to scroll through the program information for various television programs available to a television viewer to provide a variable rate of scroll for program information presented to the television viewer. The scroll rate may be varied, for example, to emphasize certain program information relative to other program information, e.g., by slowing down the scroll rate to increase the visibility for important program information and speeding up the scroll rate to decrease the visibility of less important program information. Dynamic scroll rate adjustment may be utilized in a number of situations, including in connection with non-interactive electronic program listings, interactive electronic program guides, and electronic overlays, among others. Furthermore, dynamic scroll rate adjustment may be based upon a number of different characteristics of the television programs associated with the displayed program information, including for example, the frequency of access of different television programs, or sponsorship of certain television programs.
Patent CA-2327056-C (CA)
Title: Phosphine reduction of azides to amides
Inventor: MAIR HANS-JUERGEN
IPC: C07B61/00
Filed: 2000-11-29
Granted: 2005-09-27
Abstract: A new process for the preparation of 4,5-diamino shikimic acid derivatives starting from 4-amino-5-azido shikimic acid derivatives is provided. 4,5-diamino shikimic acid derivatives and its pharmaceutically acceptable addition salts are potent inhibitors of viral neuraminidase.
Patent CA-2327503-C (CA)
Title: Cooling system for land vehicles
Inventor: ASANO KIYOMORI
IPC: F01P7/16
Filed: 2000-11-23
Granted: 2006-01-10
Abstract: A land vehicle comprises an engine having a closed loop cooling system. The cooling system includes a heat exchanger and a switching valve arrangement. The valve arrangement allows coolant to bypass the heat exchanger until the coolant temperature has exceeded a preset temperature.
Patent CA-2330077-C (CA)
Inventor: CHENG DAVID C
IPC: C01B32/50
Filed: 2001-01-04
Granted: 2004-03-30
Abstract: The present invention provides a method and apparatus for producing a pressurized high purity liquid carbon dioxide stream in which a feed stream composed of carbon dioxide vapor is purified within a purifying filter and then condensed within a condenser. The result liquid is then alternately introduced and dispensed from two first and second pressure accumulation chambers. The first and second pressure accumulation chambers are heated by electrical heaters to pressurize the liquid to the required or desired delivery pressure of the pressurized liquid carbon dioxide stream. Such stream is alternately extracted from the first and second pressure accumulation chambers on a continuous basis in which one of the first and second pressure accumulation chambers acts in a dispensing role while the other is being filled. The pressurized liquid carbon dioxide stream can be further filtered within a particulate filter.
Patent CA-2337759-C (CA)
Title: Channel assignment method for a base station in a mobile communication system
Inventor: CHANG YONG
IPC: H04J13/18
Filed: 2000-05-12
Granted: 2004-03-30
Abstract: There is disclosed a method for performing channel assignment in a base station for a mobile communication system. Upon receipt of a request for assigning a channel to a mobile station, a base station transceiver system (BTS) generates a connect message including channel information, which indicates a Walsh code, out of 256 Walsh codes, to be used for a channel to be assigned to the mobile station, and a quasi-orthogonal function (QOF) index. The BTS transmits the generated connect message to a base station controller (BSC). The BSC generates a connect ACK message for acknowledging the channel assignment-related information included in the connect message and transmits the generated connect ACK message to the BTS.      Upon receipt of the connect ACK message, in the BTS assigns the channel that was acknowledged by the BSC to the mobile station.
Patent CA-2342513-C (CA)
Inventor: EDELSTEIN PHILIP
IPC: C22B3/08
Filed: 2001-03-30
Granted: 2009-12-01
Abstract: Process for improving recovery of copper and reducing raw material costs, from a copper-containing source by SX-EW. The process comprises the steps of mixing an acidic copper-containing PLS obtained by leaching a copper-containing source with an acidic leachant, usually sulfuric acid, with an aqueous acidic cupric chloride solution spent printed wire board etchant, to produce an acidic cupric chloride/copper sulfate-containing mixture. This mixture is subjected to SX-EW to recover the copper as copper cathode.
Patent CA-2348915-C (CA)
Inventor: MOORE KENNETH A
IPC: H04H20/00
Filed: 1999-10-28
Granted: 2007-06-26
Abstract: The present invention provides an improved method and apparatus for purchasing media feature for programming transmission. A selection is sent to a server system (140) to buy an upgraded media feature for a programming transmission. The server system (140; automatically coordinates purchasing the media feature from a programming transmission source (130). In one embodiment, an entertainment system (110) includes a user interface from which a viewer selects an upgraded media feature for a programming transmission, wherein the programming transmission with the upgraded media feature is provided to the entertainment system (110).
Patent CA-2349387-C (CA)
Title: Spray gun nozzle assembly air cap
Inventor: PETTIT NEVILLE T
IPC: B05B7/06
Filed: 2001-05-31
Granted: 2005-10-04
Abstract: An HVLP spray gun air cap having an axial passage with a cap opening on an outer side thereof, first and second air horns protruding from the outer side of the air cap on opposite sides of the cap opening, first and second diverging air passages disposed in the air cap having corresponding orifices on the outer side thereof, the first and second diverging air passages disposed on opposite sides of the cap opening and aligned perpendicular to air passages of the first and second air horns.
Patent CA-2354746-C (CA)
Inventor: MEUNIER JEAN-LUC
IPC: G06K19/04
Filed: 2001-08-07
Granted: 2008-11-18
Abstract: An encoded sheet material includes a sheet of material having a first surface, a second surface disposed opposite the first surface and an edge extending between the first surface and the second surface and peripherally about the sheet of material, the edge having indicia arranged thereon to form a code uniquely identifying the sheet of material. A system for managing an encoded sheet of material, includes a code reader operative in conjunction with the encoded sheet of material for reading the code, a sheet processing apparatus for reading information from and/or writing information to at least one of the first and second surfaces, and a processor in communication with the code reader device and the sheet processing apparatus for associating the information with the read code.
Patent CA-2356245-C (CA)
Title: Method and injection molding machine for producing injection-molded articles, especially toothbrush bodies or toothbrushes
Inventor: SENN ALEXANDER
IPC: B29C45/18
Filed: 1998-12-30
Granted: 2007-10-02
Abstract: An injection molding machine for the manufacture of injection molded items, especially toothbrush bodies or toothbrushes, wherein the injection molding machine includes a mold-containing injection die (1) and an injection unit (2), especially with a screw-piston extruder or a similar material transport system. Distribution or transport channels lead from the injection unit (2) forming a distribution channel arrangement (4) to the individual mold cavities (5). One or more feeds (10) are located on the distribution channels and/or the mold cavities for at least one additive, for instance, a liquid color.
Patent CA-2360754-C (CA)
Title: Utilisation de derives de pyridazino[4,5- b]indole-1-acetamide pour la preparation de medicaments destines aux maladies liees au dysfonctionnement des recepteurs de type peripherique aux benzodiazepines
Inventor: JANIAK PHILIP
IPC: A61K31/5377
Filed: 2000-01-21
Granted: 2008-07-08
Abstract: Utilisation d'un composé de formule générale (I) dans laquelle X représente un atome d'halogène, Y représente un ou plusieurs atomes ou groupes choisis parmi l'hydrogène, les halogènes et les groupes hydroxy, méthyle, méthoxy et nitro, R1 représente un groupe (C1-C4)alkyle, R2 et R3 représentent chacun un atome d'hydrogène ou un groupe (C1-C4)alkyle, ou bien R2 et R3 forment, avec l'atome d'azote qui les porte, un groupe pyrrolidinyle, pipéridinyle ou morpholinyle, pour la préparation d'un médicament destiné à la prévention et au traitement des maladies et troubles liés au récepteur benzodiazépinique périphérique.
Patent CA-2364691-C (CA)
Title: Orthopedic system having detachable bone anchors
Inventor: SELLERS TIMOTHY M
IPC: A61B17/86
Filed: 2000-03-09
Granted: 2007-11-20
Abstract: The present invention provides an improved orthopedic system in which the part of the device that attaches to the bone is detachable from the parts of the device which provide the bone stabilization, distraction, etc. In a preferred embodiment, the system includes a proximal bone plate (14) and associated proximal fastener (18), and a distal bone plate (16) and associated distal fastener (20). The bone plates (14;  16) are affixed to the bone on opposing sides of the bone repair site, which may be an osteotomy. The fasteners (18; 20) serve to mechanically couple the orthopedic device, which may be a distractor, through the bone plates (14; 16), to the bone. The fasteners (18; 20) are releasably mechanically coupled to the bone plates (14; 16). This releasability permits the distractor and fasteners (18; 20) to be removed after the orthopedic procedure is complete, leaving only the bone plates (14; 16) in the patient. The bone plates (14;  16) may be made with a low profile, such that they may be left permanently in the patient. In a preferred embodiment, the bone plates (14; 16) are made from a resorbable material, such that they will be absorbed by the patient's body.  Methods for using this novel orthopedic system are also disclosed.
Patent CA-2371179-C (CA)
Inventor: LIDEN INGE
IPC: H04L9/32
Filed: 2000-05-05
Granted: 2013-07-02
Abstract: A key and lock device comprises a key having a first electronic circuitry and a lock having a second electronic circuitry. The key and the lock store secret information, some of which is unique for each device. The key and the lock exchange a random number through connectors and perform a calculation in the respective circuitry based on the random number and secret information. An electrical blocking mechanism is moved to a non-blocking position if a comparison of the calculations in the circuits give an expected result.
Patent CA-2372613-C (CA)
Title: Use of cross tap equalization to reduce crosstalk arising from inadequate optical filtering in a wdm optical link
Inventor: SPICKERMANN RALPH
IPC: H04B10/158
Filed: 2001-04-09
Granted: 2010-07-27
Abstract: Improved wavelength division multiplexed optical links (10) and signal processing methods that employ cross tap equalization to reduce crosstalk arising from inadequate optical filtering.  After optical filtering (11) and photodetection (12), the wavelength division multiplexed signals adjacent either side of a signal whose crosstalk is to be reduced are sampled, weighted and are then subtracted from the signal whose crosstalk is to be reduced. This is done using adaptive correlation (20), performed simultaneously on all signals, each with respect to its respective adjacent channels. The present invention enables more closely spaced optical carriers to be used in the wavelength division multiplexed optical link (10).
Patent CA-2377083-C (CA)
Inventor: ALVEBY NILS
IPC: F16L35/00
Filed: 2000-06-07
Granted: 2009-08-11
Abstract: A hose device includes a hose portion (3), at least a first end portion (2) and a channel (5) which extends along the hose device (1) through the first end portion and the hose portion. The hose device has flexible and elastic properties. The first end portion (2) of the hose device is in a mounted state arranged to be attached to a tubular connection member (7) by having the connection member introduced in the channel (5). The hose device has a transition portion (4), which is located between the first end portion (2) and the hose portion (3). The channel (5) thus extends also through the transition portion and has, at the transition portion (4), in a non-mounted state a non-circular cross-sectional shape and in the mounted state a substantially circular cross-sectional shape, which permits a free liquid flow through the channel (5).
Patent CA-2379192-C (CA)
Title: Systeme de verrouillage de secours pour porte d'inverseur de poussee
Inventor: GONIDEC PATRICK
IPC: F02K1/00
Filed: 2002-03-28
Granted: 2008-11-18
Abstract: Le système de verrouillage de secours de la porte (2) d'un inverseur de poussée comporte une pêne (13) ayant un crochet (12) à profil auto bloquant susceptible d'accrocher une interface de verrouillage (10) de la porte (2) en cas de défaillance des systèmes de verrouillage normaux. Le pêne (13) est sollicité contre l'interface (10) par un ressort (20) disposé dans un vérin dont la tige (34) appuie contre une face frontale d'un talon (22) du pêne terminé par une surface cylindrique (45) de révolution autour de l'axe d'articulation (14) du pêne (13). Lorsqu'on rétracte la tige (34), un levier double (40) déplace positivement le pêne (13) vers une position d'ouverture minimum dans laquelle la porte (2) peut s'ouvrir. Un ressort de déverrouillage (36) provoque l'ouverture totale du pêne lorsqu'un levier d'ouverture (50) est libéré. La tige (34) est en appui sur la surface cylindrique (45) du talon (22) lorsque le pêne (13) est ouvert. Le ressort (20) est alors inopérant. Le levier d'ouverture (50) est relié au pêne (13) par des biellettes (51a, 51b), et limite l'angle d'ouverture du pêne (13).
Patent CA-2380076-C (CA)
Title: Method of three dimensional laser engraving
Inventor: WILLIAMS MARK S C
IPC: B23K26/08
Filed: 2000-07-26
Granted: 2006-05-09
Abstract: A method for laser engraving a three-dimensional image into a workpiece (100) according to color shades found in an original piece of artwork. The original piece of artwork is separated into a plurality of illustrations with each illustration corresponding to a particular layer of material to be removed from the workpiece in accordance with a selected color shade found in the original artwork. The illustrations are sequentially read by laser system program software which translates the lines on each illustration into signals corresponding to laser paths. The signals are received by the laser system control assembly for directing the laser beam along the workpiece in a layer-by-layer relationship corresponding to the sequentially read illustrations. The use of the plurality of illustrations allows for a layer-by-layer removal of material in the workpiece in correspondence with the various color shades.
Patent CA-2385414-C (CA)
Inventor: KAWAMURA MAKOTO
IPC: H04N5/93
Filed: 1994-12-19
Granted: 2005-05-03
Abstract: A data reproduction apparatus and a data storage medium for synchronously reproducing multiplexed data with video, audio, and superimposed dialogue data compressed at a variable rate and performing various functions. Data are reproduced from the data storage medium using sector numbers, and data for negative sector numbers carried by some sectors are also reproduced. Multiplexing information indicating whether or not image, voice, and superimposed dialogue data is each multiplexed and information for the positions of access points used for data search and random access are stored in the positions represented by these negative sector numbers and reproduced so as to enable multiplexed data with video, audio, and superimposed dialogue data compressed at a variable rate to be synchronously reproduced and various functions to be executed.
Patent CA-2391458-C (CA)
Inventor: DENNEY ALAN W
IPC: B29C47/02
Filed: 2000-12-04
Granted: 2006-01-17
Abstract: L'invention concerne un carton laminé dans un procédé de production de ce carton laminé comportant une couche de protection pour contact alimentaire comprenant un mélange d'une couche de polyester, d'un plastifiant polymère et d'un pigment. Cette composition de protection est mélangée à température ambiante, fondue dans une cuvée principale et extrudée en une seule couche sur un substrat en carton. Cette couche de protection constitue une surface pour contact alimentaire qui peut être comprimée sous forme d'un plateau à emboutissage profond qui permet de conserver l'intégrité structurelle du revêtement de protection.