baber/WOPTO huggingface dataset:
Patent CA-2298268-C (CA)
Inventor: GRANHED MAGNUS
IPC: H01Q9/16
Filed: 2000-02-08
Granted: 2009-07-14
Abstract: A passive transponder comprises an antenna (1, 2) in the form of a metal body with two main surfaces and a diode (3) connected between the main surfaces and a dielectric (10) surrounding the antenna. A characteristic of the invention is that the impedance of the antenna is adapted to the impedance of the diode by matching unit (13, 14). A transmission line (8) is used as the matching unit. Another characteristic for the invention is that the transmission line is surrounded by a dielectric (10) made of plastic. Yet another characteristic of the invention is that the antenna is surrounded by a dielectric made of plastic which reduces the influence of the surroundings on the near field of the antenna.
Patent CA-2298888-C (CA)
Inventor: GAMBARETTO GIAN PAOLO
IPC: C09G3/00
Filed: 2000-02-17
Granted: 2007-07-03
Abstract: Fluorinated solvents are used for the application of fluorinated waxes to skis without impairing the physico-mechanical characteristics of the ski sole. The fluorinated waxes are applied to skis in the form of a spray or an aerosol allowing for quick and effective application of high melting point fluorinated waxes onto ski soles.  The fluorinated solvent may be one or more linear, branched, cross-linked, or cyclic perfluorinated compounds having a boiling temperature ranging between 30°C and 150°C, and preferably between 50°C and 100°C. Fluorinated waxes can be dissolved in such solvents, and the mixtures of fluorinated waxes and solvents are stored in spray cans and are sprayed onto the ski soles as aerosols or as sprays.
Patent CA-2301804-C (CA)
Inventor: OSTERGAARD DAVID A
IPC: F16B43/00
Filed: 2000-03-21
Granted: 2009-07-14
Abstract: A sealed wheel case is provided for use with a vibratory device for vibrating aggregate material. The vibratory device includes a frame and a rotating shaft extending transversely across the frame, with the shaft having a wheel. The sealed wheel case includes a housing having a base, a peripheral sidewall, and a cover. The housing is sized to receive therein the wheel and is further adapted to house therein a quantity of lubricating oil for lubricating the wheel. A plurality of attachment bolts are provided for securing the housing to the frame. Each of the attachment bolts includes a shank, an inner end disposed within the wheel case and having an inner contact surface, an inner control washer disposed between the inner contact surface and the housing base, with the inner control washer having a first predetermined thickness. The inner control washer includes an aperture therethrough sized to form with the bolt shank an annular cavity, and an O-ring is provided which is sized for insertion in the annular cavity, with the O-ring having a second predetermined thickness greater than the first predetermined thickness. The bolt further includes an outer end disposed outside the wheel case and having an outer contact surface adjacent the frame. Accordingly, in response to securement of each attachment bolt each O-ring is compressed to substantially fill its adjacent annular cavity, thereby preventing the lubricant from escaping the housing.
Patent CA-2302614-C (CA)
Inventor: FOURNIER LOUIS
IPC: B63B35/81
Filed: 1998-09-03
Granted: 2007-02-20
Abstract: A sportsboard (10) having an ergonomic upper surface (18). The upper surface (18) of the sportsboard (10) includes at least one upwardly angled portion (20; 22) with respect to a center of the sportsboard (10) adapted to contact the extremities (24, 26) of a rider (28), e.g., the feet, boots and/or bindings. Preferably, the angle is between about 1° and 20°, more preferably between about 4° and 14°, and most preferably between 5° and 12°. The angle preferably accounts for an amount of flex in the sportsboard (10) when ridden, and thus may be, e.g., more preferably in a range of between about 4° and 7° in a flexible sportsboard (10). The extremity contacting sections may be laterally arcuate, may be laterally rotated, and/or may be tilted about a lengthwise axis of the sportsboard (10). In another aspect, to reduce stiffness in the sportsboard (10), a plurality of grooves are formed widthwise across the sportsboard (10), particularly across thicker portions of the sportsboard (10), to reduce the compression forces necessary to bend the sportsboard (10) in a lengthwise direction.
Patent CA-2303091-C (CA)
Inventor: BUDDE PETER
IPC: E21B21/10
Filed: 1998-09-14
Granted: 2005-12-27
Abstract: A plug for use in wellbore operations, which plug is deformable such that, in use, upon fluid pressure reaching a predetermined level, said plug deforms allowing fluid to pass between said plug and a tubular in which said plug is located.
Patent CA-2303239-C (CA)
Inventor: HUNG GEORGE HON-CHEUNG
IPC: B62M1/18
Filed: 1998-09-08
Granted: 2006-10-10
Abstract: A bicycle is described which can be driven either by conventional rotation of the pedals, or by reciprocating movement of the saddle on the seat post. The cycle comprises two frame portions: a first fixed frame portion including an upright member (31) extending from a drive wheel axle bearing, and a second movable frame portion including said seat post (15) which has bifurcated arms (25, 26) driving transmission levers (29) for turning the drive wheel.
Patent CA-2304097-C (CA)
Inventor: KOPKO WILLIAM L
IPC: F25D17/08
Filed: 1998-04-23
Granted: 2003-12-30
Abstract: La présente invention concerne un appareil de réfrigération comprenant un compartiment à denrées fraîches (32) et une armoire de conservation (34) reliés entre eux par une gaine (36) de circulation d'air renfermant, d'une part un unique évaporateur (30), et d'autre part au moins une soufflante (20). Cette soufflante (20) entretient dans la gaine (36) des flux d'air de sens opposés. En l'occurrence, la circulation d'air passant par la gaine et le compartiment à denrées fraîches (32) se fait en alternance avec la circulation d'air passant par la gaine et l'armoire de conservation (34). Des clapets d'air (22, 24, 26, 28) montés aux extrémités opposées de la gaine (36), de chaque côté de la soufflante (20), gèrent la communication entre les compartiments et la gaine. Les clapets permettent à la circulation d'air de se faire, sélectivement, soit via la gaine (36) dans le compartiment à denrées fraîches (32), soit via la gaine (36) dans l'armoire de conservation (34). Dans le cas du mode de fonctionnement à refroidissement du compartiment à denrées fraîches, l'air provenant du compartiment à denrées fraîches (32) et circulant sur les serpentins de l'évaporateur (30) sert à dégivrer les serpentins de l'évaporateur.
Patent CA-2305447-C (CA)
Inventor: BOGGS DANIAL R
IPC: G01N33/483
Filed: 1998-07-20
Granted: 2006-02-21
Abstract: L'invention porte sur un système d'essais in vitro sur des tissus destinés à l'étude des interactions sang/tissus. Ledit système comporte un cadre support de tissus formant une chambre entre deux morceaux planes de tissus entre lesquels se trouve une plaque entretoise. Ladite plaque comporte une ouverture de réservoir bordée des deux côtés par des morceaux opposés de tissu, et un mécanisme abaissant certaines parties de tissu vers l'intérieur de la chambre et projetant le sang d'un côté de la chambre à l'autre. Le flux créé simule la circulation du sang dans un système hôte. L'orifice du réservoir peut être en forme de sablier avec des extrémités arrondies et un passage central pour le sang. Le mécanisme de commande peut comporter des pistons assurant un contact alternatif avec les tissus aux confins de l'extrémité opposée du réservoir, ce qui propulse le sang d'une extrémité à l'autre. Les pistons peuvent être mus par des cames disposées sur un arbre entraîné par un moteur usuel. Le cadre support peut comporter deux plaques extérieures pressant les pièces de tissus contre la plaque entretoise, lesdites plaques présentant des ouvertures correspondant aux extrémités du réservoir et les pistons allant et venant à travers les ouvertures en contact avec le tissu.
Patent CA-2305536-C (CA)
Title: Phase controlled dimming system with active filter for preventing flickering and undesired intensity changes
Inventor: NEWMAN ROBERT C JR
IPC: H02M5/257
Filed: 1998-09-24
Granted: 2007-03-13
Abstract: A phase controlled dimming system having an active filter (30) for receiving the AC line voltage waveform, and for recovering the AC fundamental waveform therefrom is disclosed. The recovered AC fundamental waveform is supplied to a zero crossing detector (28) that provides zero crossing indications of the AC fundamental waveform. The recovered AC fundamental is substantially free of noise or distortion, and of frequency components greater than at least second order harmonics, that may be present on the AC line voltage waveform, and that might otherwise result in faulty or incorrect zero crossing detection. An output of the zero crossing detector is supplied to a microprocessor (26) that controls the gating of a controllably conductive device (22) interposed between the controlled load (14) and the AC source (12) based on the zero crossing information. The filter may take an analog or digital (software) form.
Patent CA-2306018-C (CA)
Inventor: TU KUN-YII
IPC: H01Q3/26
Filed: 2000-04-18
Granted: 2005-01-04
Abstract: An interference protection system includes a receiving section for receiving an electromagnetic signal, a detector for detecting a jamming signal, and a control system for orienting a changeable null direction of an antenna system to reduce interference in a receiver from the jamming signal.
Patent CA-2313296-C (CA)
Inventor: ANTONELLI NICHOLAS R
IPC: B65G53/66
Filed: 2000-06-30
Granted: 2008-03-11
Abstract: A method and apparatus for improving the timing between the releasing of documents from enclosure feeders and the arrival of pusher fingers fixedly attached to a conveyer belt in a gathering section of an inserting machine. As the conveyer belt begins to wear and stretch after being used for a long period of time, the timing between the releasing of documents and the arrival of pusher fingers may no longer be appropriate. By using two sensors placed, preferably, at the two ends of the gathering section to measure the timing of the arrival of the pusher fingers at the sensors, the stretch of the chain can be determined and the delay of the arrival of a pusher finger at each enclosure feeder can be calculated.  Adjustment to the releasing timing at each enclosure feeder can be made accordingly.
Patent CA-2326816-C (CA)
Inventor: NEVEN HARTMUT
IPC: H04N13/239
Filed: 1999-04-12
Granted: 2005-04-05
Abstract: The present invention is embodied in an apparatus, and related method, for detecting and recognizing an object in an image frame. The object may be, for example, a head having particular facial characteristics.  The object detection process uses robust and computationally efficient techniques. The object identification and recognition process uses an image processing technique based on model graphs and bunch graphs that efficiently represent image features as jets. The jets are composed of wavelet transforms and are processed at nodes or landmark locations on an image corresponding to readily identifiable features.  The system of the invention is particularly advantageous for recognizing a person over a wide variety of pose angles.
Patent CA-2329478-C (CA)
Title: System and method for use of override keys for location services
Inventor: HAVINIS THEODORE
IPC: H04W64/00
Filed: 1999-04-19
Granted: 2009-03-24
Abstract: A telecommunications system and method are disclosed for implementing Location Override Key(s) (LOKs) within location services in order to determi ne whether certain checks on subscriber limitations and/or system default behavior are applicable or not for a particular location request. Each LOK can either have the value override or not override associated therewith, and each Location Application (LA) can be associated with a particular value of an LOK. In addition, an LOK can be accompanied by one or more additional parameters related to the particular LOK. For example, location services can provide LAs with a Privacy Override Key (POK), which can have a value of "override" or "not override". If the POK is set to "override", the privacy settings of the subscriber to be positioned shall be overridden for the particular positioning request in most cases only if the subscriber to be positioned is in the same Public Land Mobile Network (PLMN) as the Gateway Mobile Location Center (GMLC) that received the positioning request.
Patent CA-2346371-C (CA)
Title: Decorative panels coated with two thermosetting material layers and its method of manufacture
Inventor: LEACH ROGER JOHN
IPC: B41M1/34
Filed: 1999-10-08
Granted: 2008-10-07
Abstract: A panel having a glass substrate (1), carries a transparent polyester powder-coating (2) with images (5) printed on its back surface (4) for viewing through the glass. A coloured polyester powder-coating (6) covers printed surface (4) and is backed by metal foil (7).  Manufacture involves heating polyester powder deposited on a silane-treated surface (3) of the glass (1), to form the coating (2) about 70 % cured. Images (5) are printed on surface (4) using a colour-separation process with ink having u.v. - and thermo-curing properties, the ink being u.v. cured after each printing step of the process. Heat applied to cure polyester powder of coating (6), also thermo-cures the ink (5) and completes curing of coating (2). The foil (7) is brought into contact with the melted powder of coating (6) to bond it to the coating (6).
Patent CA-2353141-C (CA)
Inventor: WALTMAN JOHN H
IPC: A47J37/04
Filed: 2001-07-17
Granted: 2005-03-22
Abstract: A reversible clamping member for use in a rotisserie grill having spaced end plates and a plurality of adjacent rods therebetween in a cradle formation connected at their ends to the plates. One pair of adjacent rods are spaced to define an opening for the passage of food into the interior of the cradle. The reversible clamping member has a pair of main rods intersecting each other and connected thereto at a center area of each main rod. Both main rods have slight bends in their center areas for closer positioning to the food located in the interior of the cradle. One of the main rods has a U-shaped member secured at each end, wherein one of the U-shaped member has legs perpendicularly extending from its center portion and the other U-shaped member has legs angularly extending from its center portion. A sleeve is removeably mounted at one end to one of the main rods, and the sleeve is removeably mounted at the other end to one of the adjacent rods of the grill.
Patent CA-2354691-C (CA)
Inventor: DE PAUW GERLINGS JOHANNES HEND
IPC: C01F11/16
Filed: 1999-12-07
Granted: 2008-06-03
Abstract: La présente invention concerne des procédés permettant d'obtenir une solution d'ions calcium à partir de la chaux, par exemple la chaux de carbure. Selon un aspect, le procédé consiste (i) à traiter la chaux au moyen d'une solution aqueuse d'un composé polyhydroxy (de préférence le sorbitol) portant au moins trois groupes hydroxy et une chaîne droite de 3 à 8 atomes de carbone; et (ii) éventuellement à séparer les impuretés insolubles de la solution résultant du (i). Selon un autre aspect, le procédé consiste (iii) à traiter la chaux de carbure au moyen d'une solution aqueuse d'un composé polyhydroxy (de préférence le sorbitol ou le sucrose) de façon à extraire le calcium de la chaux de carbure; et (iv) éventuellement à séparer les impuretés insolubles de la solution résultant du (iii). La solution obtenue peut se traiter au moyen d'un agent de précipitation de façon à obtenir un produit solide contenant du calcium. Ce produit peut être du carbonate de calcium obtenu par traitement de la solution en utilisant comme agent de précipitation du dioxyde de carbone.
Patent CA-2363188-C (CA)
Title: Ains land surveyor system with reprocessing, ains-lssrp
Inventor: LITHOPOULOS ERIK
IPC: G01C21/16
Filed: 2001-11-19
Granted: 2006-01-10
Abstract: A Land Surveyor System with Reprocessing is carried by a surveyor moving from a first known position at the start of a survey interval to a second known position at the end of the survey interval has an AINS (aided inertial navigation system) that provides a continuing sequence of time-indexed present position values. A  Position Computing System uses a program that stores the sequence of time-indexed present position values in a memory. A reprocessing computer and program is activated at the second known position to access and process the continuing sequence of time-indexed present position values with a smoothing program to provide indexed and adjusted present position values for at least some of the time-indexed present position values. The system is packaged for transport and use by a surveyor. A switch permits the surveyor to signal that the unit is stationary as a reset for the AINS.
Patent CA-2364354-C (CA)
Title: Recovery and purification process and installation of ethylene manufactured through hydrocarbon pyrolysis, and gases obtained from this process
Inventor: KAISER VICTOR
IPC: F25J3/02
Filed: 2001-11-30
Granted: 2011-02-01
Abstract: A process for the high-yield recovery of ethylene and heavier hydrocarbons from the gas produced by pyrolysis of hydrocarbons (1) in which the liquid products (12-15, 23) resulting from the fractionated condensation of a cracking gas (1) for the recovery of almost all the ethylene, are supplied to a distillation column (C1), called a de-ethanizer, at different intermediate levels. At the top of the de-ethanizer the vapor (31) of the column distillate is treated directly in an acetylene hydrogenation reactor (R1), the effluent containing virtually no acetylene being separated by a distillation (C2) column called a de-methanizer, into an ethylene- and ethane-enriched tail (43) product, while the head product (44) is recycled by compression or treated for subsequent recovery of ethylene.
Patent CA-2368986-C (CA)
Inventor: MINTON JOHN EDWARD
IPC: C12Q1/6816
Filed: 2000-04-11
Granted: 2017-12-05
Abstract: A method of marking a material and subsequently detecting that it has been marked is disclosed, comprising adding or applying a marker comprising a nucleic acid tag to the material, sampling a portion of the material containing such marker, and detecting the presence of nucleic acid tag in the sample. The method is characterised in that the quantity of the nucleic acid tag present in the sample is determined to provide an indication of the quantity of marker present in the material. The nucleic acid tag may comprise one or more identifying sequences, and the tag is amplified by means of a nucleic acid amplification reaction. Also disclosed are a method of marking a material with a nucleic acid tag, a method of detecting whether a material has been marked by a marker comprising a nucleic acid tag, a method of detecting the quantity of a marker comprising a nucleic acid tag in a material that has previously been marked, a method of marking a material and subsequently determining the quantity of marker in the material, and a method of and a kit for determining which particular nucleic acid tag from a known pool of nucleic acid tags has been used to mark a material.
Patent CA-2373241-C (CA)
Inventor: SIMPSON PETER C
IPC: G06K19/00
Filed: 2000-05-19
Granted: 2007-08-28
Abstract: In one aspect of the invention, a dual-mode infrared/radio frequency (IR/RF) transmitter is secured within a wristband worn by the mother and within an ankle and/or wristband worn by the infant. In a matching mode of operation, IR signals are received by infrared receivers located within the various rooms of the hospital to precisely and automatically determine by proximity that mother and infant are correctly united. In a presence detecting mode, RF signals from the infant's badge are detected by RF receivers located throughout the maternity ward of the hospital or throughout the hospital generally. In a security mode, RF receivers located proximate exits of either the maternity ward and/or the hospital detect RF signals from the ankle and provide a signal to generate an alarm.
Patent CA-2373506-C (CA)
Title: Process for manufacturing diazepine derivatives
Inventor: HOFFMANN-EMERY FABIENNE
IPC: C07D243/14
Filed: 2000-05-05
Granted: 2007-09-11
Abstract: The present invention relates to a process for manufacturing diazepine derivatives of general formula (I) wherein R1 is lower alkyl and R2 is hydrogen, or R1 and R2 are together -(CH2)n, and n is 2 or 3; R3 is halogen, lower alkyl, lower alkoxy and m is 0, 1 or 2; R4 is hydrogen or lower alkyl.  The compounds of general formula (I) are valuable intermediate products for the manufacture of imidazo[1,5-a][1,4]diazepine derivatives, like for instance 7-chloro-3-(5-dimethylaminomethyl-[1, 2,4]oxadiazol-3-yl)-5-methyl-4,5-di-hydro -imidazo[1,5-a][1,4]benzodiazepin-6-one, which diazepine derivatives show excellent psychopharmacological properties as agonists of the central benzodiazepine receptors.
Patent CA-2373683-C (CA)
Title: Detection de la delamination de revetements de caoutchouc sur substrats metalliques
Inventor: WHITE DENNIS A
IPC: G01N29/09
Filed: 2000-05-09
Granted: 2004-10-05
Abstract: On contrôle le collage d'un revêtement isomère (22) sur un rouleau de métal (20) en émettant des ondes de fréquence audibles au travers du revêtement souple sur le rouleau et en captant ces ondes au niveau d'un transducteur (38) monté sur le rouleau d'acier sous-jacent. Le signal qui en résulte peut être analysé par un technicien écoutant les fréquences radio. Les fréquences sonores utilisées peuvent être de l'ordre de 5000 Hz. L'onde sonore qui traverse un matériau isomère du type caoutchouc accuse une perte considérable d'amplitude alors que cette perte n'est que faible pour un son qui traverse l'acier à grande vitesse. En balayant en spirale la surface en caoutchouc du rouleau, un émetteur acoustique (28) transmet l'onde sonore directement dans le rouleau d'acier sous-jacent et au travers de celui-ci. Un transducteur (38) monté aux extrémités du rouleau détecte l'onde sonore. Toute défaillance ou variation signification de la liaison entre le rouleau et le revêtement infléchit la qualité du sont transmis au travers de l'interface caoutchouc.
Patent CA-2380034-C (CA)
Title: Ensemble rotatif de forage longue portee
Inventor: BLOOM DUANE T
IPC: E21B44/00
Filed: 2000-07-31
Granted: 2006-04-18
Abstract: Selon cette invention, un ensemble rotatif de forage longue portée comporte un conduit allongé, un trépan (122), un outil de direction en trois dimensions (118) et un dispositif de traction (110) installé sur le conduit et servant appliquer une force au trépan. L'outil de direction comprend une partie de télémétrie (100), une partie rotative (224) et une partie souple (272) se présentant comme un système intégré monté en série sur la longueur de l'outil. La partie souple (226) comporte un arbre d'entraînement souple (244) auquel on applique un effort de flexion lors des réglages de l'angle d'inclinaison. La partie rotative (224) comprend un boîtier déflecteur qui pivote de manière à ajuster les angles d'azimut. La partie de télémétrie (100) reçoit les commandes relatives à l'inclinaison et à l'angle d'azimut ainsi que les signaux de rétroaction sur les angles réels d'inclinaison et d'azimut de manière à commander le trajet. Un ensemble de propulsion déplace le dispositif de traction par rapport  à un organe de préhension (1104) lorsque la partie de l'organe de préhension se trouve en première position. Le dispositif de traction (110) applique une force au trépan afin de forer le trou selon un trajet désiré dont la direction est contrôlée par l'outil de direction en trois dimensions (118).