baber/WOPTO huggingface dataset:
Patent CA-2228259-C (CA)
Inventor: ODELL MICHAEL
IPC: D21F7/06
Filed: 1997-06-10
Granted: 1999-12-07
Abstract: A roll and blade gap former for a paper machine having first and second wires guided in a respective loop and defining a twin-wire forming zone, a forming gap in which the first and second wires converge before the twin-wire zone, a headbox including a slice channel having a slice opening through which a stock suspension jet is fed into the forming gap to form a web between the wires, and drainage and forming elements arranged in the twin-wire zone for removing water from the web. To provide an improvement in the control of the Zdirection properties of the web, the former includes turbulence generating vanes arranged in the slice channel in the headbox to cause turbulence in the stock suspension jet upon its discharge from the slice opening into the forming gap and a first forming roll arranged in the twin-wire zone and which constitutes the first drainage and forming elements in the twin-wire zone after the forming gap. A run of the twin-wire zone after the forming gap is curved over a wrap angle sector of the first forming roll which is less than about 25~. The forming and draining elements produce a pulsating pressure effect on the web after the curved run of the twin-wire zone over the wrap angle sector of the first forming roll. A method for controlling the anisotropy of web formed in a roll and blade former is also described.
Patent CA-2233400-C (CA)
Inventor: CRAIG JEFFREY P
IPC: B61K3/02
Filed: 1998-03-27
Granted: 2002-01-29
Abstract: A device for lubricating a track or a rail that is adapted to be mounted to a wheeled vehicle.  The device includes a  frame member adapted to be mounted to the vehicle and an arm pivotally attached to the frame member. A roller, which is adapted to ride on the rail, mounts to the  arm and  receives  a guide.   A lubricating nozzle attaches to the guide.
Patent CA-2234410-C (CA)
Title: Novel phloroglucide derivatives and their pharmaceutical use
Inventor: HWU JIH RU
IPC: C07D501/00
Filed: 1998-05-01
Granted: 2002-07-16
Abstract: A series of phloroglucide derivatives are synthesized, which possess potent antibacterial activities. They include unsymmetrical phloroglucide analogs, phloroglucides attached to cephalosporins at the C-3' position, and 7-(phloroglucidamido)cephalosporins.
Patent CA-2235001-C (CA)
Inventor: PANIGHEL BRUNO
IPC: B60C9/08
Filed: 1996-11-06
Granted: 2003-08-19
Abstract: A radial tyre having at least one side wall and a carcass reinforcement consisting of at least one ply (20) reinforced by substantially radial parallel yarns (24), and comprising at least one lap weld (21) formed by overlapping two ends (22, 23) or adjacent portions of said ply. The general direction (D2) of the lap weld in said side wall is oblique relative to the direction (D1) of the radial yarns (24). Said radial tyre is particularly suitable for private cars or vans where the carcass reinforcement comprises a single radial ply, and the radial yarns (24) are, in particular, made from polyester and especially from polyethylene terephthalate. Compared with prior art radial tyres, said tyre has side walls with an enhanced outward appearance.
Patent CA-2235172-C (CA)
Inventor: DILLING PEER
IPC: B41F31/02
Filed: 1998-04-17
Granted: 2002-01-29
Abstract: An inking device for inking a screen roller of a printing machine includes an ink supply device with an ink reservoir that are removable as one unit from the printing machine easily and without tools.   The ink reservoir  is  separable  from the  ink  supply device. The ink reservoir is filled using an ink cartridge. The printing ink is conveyed under pressure from the ink reservoir to the ink supply device in a supply line.   The ink is pressed into the cups or hatchings of the inking device roller via the supply line by using a pump or a conveying roller.
Patent CA-2235720-C (CA)
Title: Dispositif de regulation du debit d'un liquide
Inventor: DARLING PHILLIP H JR
IPC: A61M5/168
Filed: 1996-09-24
Granted: 2002-08-06
Abstract: Dispositif de régulation du débit d'un liquide comprenant une première chambre (60) ventilée de liquide, dont une extrémité supérieure d'entrée de liquide est pourvue d'une pointe creuse (46). Un obturateur (70) flottant dans la première chambre arrête la pénétration dans ladite chambre du liquide provenant d'un réservoir de liquide (12), ce qui crée une pression constante. Une extrémité inférieure de la première chambre est reliée, par l'intermédiaire d'un régulateur de débit (66) à une extrémité supérieure d'entrée d'une deuxième chambre (62) ventilée de goutte-à-goutte, dont l'extrémité inférieure est conçue pour être accouplée à un tube d'évacuation. Un deuxième obturateur (140) flottant librement dans la deuxième chambre, prévient la pénétration dans le tube d'évacuation du liquide provenant de ladite chambre, quand le niveau du liquide dans ladite deuxième chambre est égal ou inférieur à un niveau minimum prédéterminé et prévient la pénétration du liquide dans la deuxième chambre quand le niveau de liquide dans ladite chambre atteint un niveau prédéterminé.
Patent CA-2240762-C (CA)
Title: Procede et appareil d'introduction d'un tube de production dans un puits
Inventor: MCCLANAHAN WALLY S
IPC: E21B19/22
Filed: 1997-05-05
Granted: 2005-02-01
Abstract: Cette invention concerne un appareil d'introduction d'un tube de production (23) dans un puits. L'appareil comprend un dispositif de stockage de tube (22) et un dispositif introducteur (6) muni d'un moyen (48) permettant d'exercer une pression variable sur le tube enroulé (23). Le dispositif introducteur (6) est conçu pour recevoir un tube présentant des raccords et autres outils de fond de puits sans endommager le tube. L'invention concerne également un procédé qui permet d'introduire et de retirer sans dommage une certaine longueur de tube enroulé (23) présentant des raccords ou autres outils de fond de puits.
Patent CA-2252592-C (CA)
Inventor: MACKENZIE J MURDOCH
IPC: C01G53/00
Filed: 1997-05-02
Granted: 2008-10-21
Abstract: A process for the recovery of nickel from a nickel containing ore in which the ore, particularly a laterite ore, is initially leached with an aqueous acid solution, after which the nickel is precipitated as nickel hydroxide by adding a hydroxide to the aqueous acid leach solution containing the nickel, followed by a re-leaching of the nickel with an aqueous ammoniacal solution and recovery of the nickel by a solvent extraction of the nickel from the aqueous ammoniacal solution with an organic phase of a water insoluble oxime extractant dissolved in a water-immiscible hydrocarbon solvent and the nickel recovered by electrowinning the nickel from the aqueous acid stripping solution employed to strip the nickel from the organic phase.
Patent CA-2255991-C (CA)
Title: Hydraulic control valve system with load sensing priority
Inventor: HAMKINS ERIC P
IPC: F15B11/16
Filed: 1998-12-14
Granted: 2003-03-18
Abstract: A hydraulic fluid is supplied from a tank to a plurality of actuators by a variable displacement pump which produces an output pressure that is a constant amount greater than a pressure at a control input.  A mechanism senses the greatest pressure among the workports to provide a first load-dependent pressure and a second load-dependent pressure which is greater than the first load-dependent pressure when the pump operates a maximum flow capacity.  Each valve section includes a pressure compensating valve which controls the fluid flow to the associated actuator in response to a pressure differential between the metering orifice and either the first or second load-dependent pressures.  When the pump operates at maximum flow capacity, actuators connected to the valve sections in which the pressure compensating valve responds to the first load-dependent pressure receive the fluid flow on a priority basis as compared to the other valve sections.  Thus the system operates the priority actuators as normally as possible during a maximum pump flow situation by reducing the fluid flow to non-priority actuators.
Patent CA-2256485-C (CA)
Title: Superdirective microphone arrays
Inventor: CHU PETER L
IPC: H04R3/00
Filed: 1997-05-28
Granted: 2004-02-17
Abstract: An end fire microphone array having reduced analog-to-digital converter requirements is disclosed. Analog filters (112, 113, 114) are used to band-limit at least two secondary microphone elements (102, 103, 104) which are spaced from a primary microphone element (101) a distance respective of their band limited outputs. The band-limited secondary microphone signals are digitized by an analog-to-digital converter (120).      A signal processor (130) performs a superdirective analysis of the primary microphone (101) signal and the combined secondary microphone signals (115). A steerable superdirective microphone array is also disclosed in which a plurality of microphones are arranged in a ring. Their outputs are digitized, split into frequency bands, and weighted sums are formed for each of a plurality of directions. A steering control circuit evaluates the relative energy of each directional signal in each band and selects a microphone direction for further processing and output.
Patent CA-2257579-C (CA)
Inventor: WEI HUACHEN
IPC: A61K8/49
Filed: 1997-06-09
Granted: 2007-08-21
Abstract: A method of inhibiting the harmful effect of UVR exposure to the human skin comprising topically applying a therapeutically effective amount of genistein to the skin at a time sufficiently close to the time of UVR exposure to inhibit UVR-induced damage to the skin. The genistein appears to act as a chemo preventative agent since it has no appreciable sun blocking effect. The genistein may be mixed with a variety of carriers and skin treatment compositions.
Patent CA-2258532-C (CA)
Inventor: SCHROEDER ALFRED A
IPC: B65D77/06
Filed: 1997-06-13
Granted: 2005-05-24
Abstract: A box (32) and the method for use thereof for a concentrate bag-in-box package for use with bags having a discharge tube (52) for use with beverage dispensers having peristaltic pumps, the box having a tear flap (34) defining a plurality of different tube opening locations (36) whereby different size packages can be used even though their center line does not line up with the tube passageway in the pump.
Patent CA-2261524-C (CA)
Inventor: MAXWELL GLEN V
IPC: B60P3/07
Filed: 1999-02-12
Granted: 2008-02-05
Abstract: A trailer comprises a front member, a center member, two wheel members, and an axle member. The front member is adapted to be removably attached to a towing vehicle. The center member is detachably connected to the front member. Each of the two wheel members include a wheel, and the axle member is detachably connected to the center member and to the wheel members. Channel sections can be attached to at least two of the membe rs with the channel sections combining to create a channel that is adapted for receiving a cycle. The trailer can also include a ramp rotatably attached to the axis member. When the ramp is in a lower position, the ramp defines a path for communicating the cycle from the ground to the channel.
Patent CA-2268093-C (CA)
Inventor: DAMES ANDREW NICHOLAS
IPC: G06K7/08
Filed: 1997-10-08
Granted: 2004-08-03
Abstract: L'invention concerne un lecteur permettant d'interroger une étiquette magnétique, par exemple de lire les données mises en mémoire dans l'étiquette. Le lecteur comprend un dispositif générateur de champ, le champ magnétique produit définissant une zone d'interrogation. Le dispositif générateur de champ comprend (a) un système pour générer un champ magnétique; (b) une bobine émettrice, qui transmet un signal électromagnétique d'interrogation à la zone d'interrogation, de façon à interagir avec une étiquette magnétique, dans le cas où une étiquette est présente dans ladite zone d'interrogation; et (c) au moins une bobine réceptrice, qui reçoit un signal électromagnétique généré par une étiquette en réponse audit signal d'interrogation et au champ magnétique produit par ledit système générateur. Le système générateur de champ magnétique peut se présenter sous la forme de cylindres creux, donnant un lecteur "en boucle", ou sous la forme d'un aimant plat, donnant un lecteur "à passage latéral".
Patent CA-2268185-C (CA)
Title: Plant for transferring liquid metal, method of operation, and refractories
Inventor: RICHARD FRANCOIS-NOEL
IPC: B22D41/42
Filed: 1997-10-15
Granted: 2005-12-06
Abstract: The invention relates to a plant for transferring liquid metal, in particular steel, between an upstream container (2) and a downstream container (10), comprising: an upstream container (2); a tapping spout (28); a downstream container (10), a flow regulator (26) for regulating the flow of liquid metal through the tapping spout (28); a set of refractory assemblies (8, 12, 30, 32, 64, 66, 74) which are placed between the upstream container and the downstream container, delimiting the tapping spout (28) via which the liquid metal flows from the upstream container (2) into the downstream container (10), each refractory assembly of the tapping spout (28) having at least one mating surface (22) forming a joint with a corresponding surface of an adjacent refractory assembly; a shroud channel (18; 40) placed around the tapping spout (28) near at least one mating surface (22) between refractory assemblies (8, 12, 30, 32, 64, 66, 74), this shroud channel having an inlet (44) capable of allowing the introduction of materials; in which plant means (32, 34; 36) are provided for introducing a sealing agent into the shroud channel (40; 18).
Patent CA-2273010-C (CA)
Title: Utilisation de porphyrines vertes pour preparer un medicament servant a traiter les cataractes secondaires
Inventor: RICHTER ANNA M
IPC: A61K41/00
Filed: 1997-12-08
Granted: 2007-03-13
Abstract: On met en application une thérapie photodynamique au moyen de photosensibilisants, tels que des porphyrines vertes, en tant qu'agents photoactifs afin de détruire des cellules épithéliales résiduelles sur une lentille.
Patent CA-2273038-C (CA)
Inventor: FUNK THOMAS J
IPC: G01R31/28
Filed: 1997-11-25
Granted: 2003-09-23
Abstract: La présente invention concerne un adaptateur (100) d'antenne servant d'interface entre un radiotéléphone portable (200) et un matériel extérieur. Selon un mode de réalisation préférée, un ensemble connecteur (404) comprend une première partie (406) de connecteur qui s'insère directement dans le port de l'antenne du radiotéléphone, en remplacement de l'ensemble antenne normal. On utilise des composants électriques (410) adaptés montés sur une carte (400) de circuit de manière à obtenir une adaptation à l'impédance du port de l'antenne du radiotéléphone portable. Une seconde partie (408) de connecteur utilise généralement des connecteurs de fréquence radio (RF) de manière à coupler le port de l'antenne du radiotéléphone au matériel extérieur.
Patent CA-2276351-C (CA)
Title: Halogen gas detector
Inventor: TOZIER JOHN E
IPC: G01N27/12
Filed: 1999-06-25
Granted: 2007-12-04
Abstract: A halogen gas detector comprises a coil comprising an oxidation-resistant metal wire with a nonreactive oxide coating wound into a double helix defining a cylindrical space, a conductive metal pin positioned within the cylindrical space making no contact with the coil, finely divided sintered in place sodium titanate filling the space between the coil and the pin.
Patent CA-2281976-C (CA)
Inventor: ANDERSON JAMES W
IPC: E21B10/62
Filed: 1999-09-07
Granted: 2005-03-29
Abstract: A combination milling and drilling bit which can be converted from a first type of cutting operation to a second type of cutting operation by hydraulically moving a plurality of movable blades to extend beyond a plurality of fixed blades. The fixed blades are dressed with cutting inserts suitable for the first type of cutting operation, while the movable blades are dressed with cutting inserts suitable for the second type of cutting operation.
Patent CA-2283063-C (CA)
Title: Calibration of imaging systems
Inventor: MALMSTROM KURT
IPC: G01J3/52
Filed: 1998-03-03
Granted: 2004-05-25
Abstract: The calibration of an imaging system having a camera (20) for capturing colo ur data for a target object (carcass 10) includes a primary calibration to obtain a primary transform for RGB data to enable compensatio n for variations in the camera operation or characteristics, and a secondary calibration obtain a secondary transform to enable compensation for local lighting conditions during capture and processing of colour data for captured images to be analysed. The calculated primary transform relates the actual measured colour data to known standard colour data for the particular standard colour specimens (31). The standard colour specimens (31) are presented in an enclosure or hood (30) to the camera under controlled illumination and with extraneous or external light being excluded from illuminating the specimens. A preliminary calibration includes calibrating the primary calibration standar d colour specimens and associated controlled light source against centralised laboratory standard colours.
Patent CA-2283286-C (CA)
Title: Hoop stent
Inventor: KONYA ANDRAS
IPC: A61F2/95
Filed: 1998-03-06
Granted: 2007-07-03
Abstract: This invention is a stent (1) comprising a single wire (2) fashioned into hoops (5) connected with radially offset struts (7).
Patent CA-2287063-C (CA)
Inventor: CHAMBERS ROBERT X
IPC: E04F15/22
Filed: 1999-10-21
Granted: 2004-04-13
Abstract: A resilient flooring construction having a capacity for downward deflexure which comprises, as part of its sub-floor assembly, a plurality of elongated parallel supporting channel means having deflexure slots each of which are engaged by the top step member of a three member step-shaped anchoring clip which has a bottom step member fastened to a foundation outside the structural confines of the supporting channel, and a vertical riser member in the middle of the anchoring clip which limits the upward movement of the floor construction and permits its downward deflexure.
Patent CA-2287317-C (CA)
Inventor: MADSEN JOHN DANIEL
IPC: E21B19/081
Filed: 1998-04-23
Granted: 2003-12-30
Abstract: L'invention concerne une tour de forage, notamment une tour d'installation de forage, comprenant une structure tour de forage et un palan de levage destiné à lever une charge, un train de tiges par exemple, à l'intérieur de ladite structure. Le palan comporte des systèmes de guidage parallèles, dont chacun comprend un rail de guidage principal vertical (4, 7), un rail de guidage de stockage (5, 8) parallèle au premier rail, et, dans la partie inférieure de la tour, une partie de guidage de liaison (6, 9) disposée entre les deux rails. Le palan comprend également une crémaillère (10, 11), disposée coulissante dans chaque rail et divisée en segments (12, 13) successifs, qui sont de préférence interconnectés par une charnière et conçus pour porter les uns sur les autres quand la crémaillère (10, 11) ou une partie de celle-ci se trouve dans le rail de guidage principal (4, 7), ce dernier étant conçu pour supporter horizontalement lesdits segments (12, 13). Le palan comprend aussi un étrier porteur (22), disposé sur la crémaillère (10, 11) dans le rail de guidage principal correspondant (4, 7), et une roue menante (25), comportant une roue dentée (26, 27, 28) en contact avec les segments (12, 13), qui entraîne ces derniers dans le rail de guidage vertical correspondant (4, 7).
Patent CA-2290256-C (CA)
Title: Dual interface memory card in combination with adapter module
Inventor: YAO LI-HO
IPC: G06F13/42
Filed: 1999-11-23
Granted: 2005-08-23
Abstract: A dual interface memory card and an adapter module for the memory card are disclosed to convenient transfer data between the memory card and a computer. The dual interface memory card has a memory unit and a micro control unit connected to the memory unit. The micro control unit includes a USB interface for connecting to a computer whereby the computer is able to read data from and write data to the memory unit, and a host interface for connecting to an electronic product which has the memory card installed therein such that data output from the electronic product can be stored in the memory unit. The adapter module is provided to conveniently connect the dual interface memory card to the computer.
Patent CA-2290464-C (CA)
Title: A method of maximizing spectral efficiency in a cellular communications system
Inventor: STEVENS RANDY
IPC: H04W16/32
Filed: 1998-05-13
Granted: 2004-04-06
Abstract: A system and method for operating a cellular communication system is disclosed wherein frequency reuse of available carrier frequencies is maximized, thereby maximizing system traffic capacity.      The invention includes an outer cell grid generated by a plurality of base station transceivers connected to a common network controller. Within the grid of outer cells is at least one overlapping sub-grid of inner cells that may be generated by the same base stations as the outer cells, or which may be generated using separate base station transceivers located within the outer cell. At least two frequency reuse patterns are applied to the cells, one pattern for the outer cells and another, tighter pattern for the inner cells.      The inner cells are defined and limited by a predetermined threshold co-channel interference level (C/I), the interference emanating from adjacent inner cells operating at the same frequencies. The invention also includes mobile units that can directly measure both RSSI and C/I of the serving cell and associated neighbor cells.      The mobile units take periodic measurement reports which are transmitted to the network when a predetermined threshold interference condition has been met.  The network controller than switches the mobile unit to one of the neighbor cells. The present method and system can be used with other traditional techniques for optimizing frequency reuse, such as underlay/overlay or microcellular methods.
Patent CA-2300186-C (CA)
Inventor: TANNER WILLIAM RUSSELL
IPC: B25B13/04
Filed: 1998-08-06
Granted: 2005-01-04
Abstract: A wrench (10) for rotating a fastener having a number of corners on a periphery thereof and method of making same is disclosed. The wrench (10) includes a gripping member (12) having an opening defined by an inner surface (24) complimentary to the periphery of the fastener whereby the fastener may be axially received by the gripping member (12). The inner surface (24) defines the plurality of circumferentially spaced shoulder portions (30) wherein alternating shoulder portions (30) engage a corresponding corner of the fastener. The shoulder portions (30) define areas(34) therebetween. Stopper portions (36) are located in alternating areas between shoulder portions (30). The wrench (10)has a first angular position where the stopper portions (36) engage an upper surface of the fastener for restricting the passage of the fastener therethrough and a second angular position where the stopper portions (36) do not engage the upper surface of the fastener thereby permitting the passage of the fastener therethrough.