baber/WOPTO huggingface dataset:
Patent CA-2232940-C (CA)
Inventor: BRUCE RONALD JAMES
IPC: E21B29/00
Filed: 1996-10-07
Granted: 2005-01-04
Abstract: Apparatus for milling the casing of an oil or gas well comprises a downhole assembly which is run into the well on a rotatable drill string. The assembly comprises a motor (6) the bod y of which is connected to the drill string and the output shaft of which is connected to a casing mill (9). In use, the drill string is rotated in one rotational direction and the motor (6) is operated to rotate the output shaft thereof i n the same rotational direction whereby the speed of rotation of the mill (9) is faster than the rotational speed of the drill string. Because the rotational speed of the milling tool (9) cannot be less than the rotational speed of the outp ut shaft of the motor (6) relative to the body thereof extreme variations in the rotational speed of the milling tool due to winding up of the drill string are avoided. The downhole assembly may incorporate a taper mill (11), stabilizer s (10, 8 and 5) and a jet sub (4). The assembly may also incorporate a constant thrust device for producing a substantially constant thrust loading on the milling tool and one or more cement removing tools.
Patent CA-2235565-C (CA)
Inventor: NA EUN-SUN
IPC: A61K36/18
Filed: 1998-04-22
Granted: 2001-12-04
Abstract: An anti-cancer composition comprising an effective amount of a Rhus verniciflua extract and a pharmaceutically acceptable  carrier,  the Rhus verniciflua extract being prepared by a process  comprising extracting  from Rhus verniciflua a crude extract with acetone or ethanol, and subjecting  the  crude  extract  to  silica gel  adsorption chromatography  employing  a  mixture  of  chloroform  and methanol.
Patent CA-2242379-C (CA)
Title: Connecteur de derivation pour cable souterrain
Inventor: SAUER ERIC
IPC: H01R4/24
Filed: 1997-01-28
Granted: 2006-01-03
Abstract: Connecteur de dérivation pour câble souterrain permettant de raccorder électriquement un câble principal et au moins un câble dérivé formés chacun d'une âme métallique entourée d'une gaine isolante et comprenant un corps inférieur (10) et un corps supérieur (12) disposés en opposition et rapprochés mutuellement par serrage, chaque corps comportant un élément de contact, au moins en partie métallique, situé dans un plan transversal par rapport à une direction axiale des câbles et pénétrant à la fois l'isolant du câble principal et l'isolant du câble dérivé pour venir en contact avec l'âme de ces câbles lorsque les corps supérieur et inférieur sont rapprochés mutuellement par au moins un moyen de serrage (14) et un organe mobile de séparation non conducteur (70) situé dans le plan médiateur du connecteur est prévu pour permettre un montage sans contact entre eux de deux câbles dérivés.
Patent CA-2250549-C (CA)
Title: Reverse transcriptase inhibitor
Inventor: WAKAYAMA SACHIO
IPC: A23L1/30
Filed: 1998-10-16
Granted: 2005-05-17
Abstract: A reverse transcriptase containing flowery portion or its extract originated from elm in Ulmus hollandica is disclosed.      The reverse transcriptase of this invention shows an activity remarkably higher than that of a known reverse transcriptase inhibitor derived from Ulmus davidiana var. japonica. Low toxicity of the reverse transcriptase inhibitor of this invention allows it being successfully applied to pharmaceuticals with a potent activity at a low dose, foods and beverages.
Patent CA-2252208-C (CA)
Title: Method and apparatus for determining the moisture level in a buried splice
Inventor: HUFFMAN JOHN SINCLAIR
IPC: G01R31/02
Filed: 1998-10-29
Granted: 2003-05-06
Abstract: The level of moisture in a buried splice case is provided by a transmitter that is energized from a power circuit via a moisture detector when the moisture detector detects a prescribed level of moisture in the splice case.      Once energized, the transmitter transmits a coded word indicative of the prescribed moisture level for receipt by a receiver located above ground. In this way, a technician, using the receiver can directly determine the moisture level in the buried splice case without the necessity to excavate the case or to contact a member of the On-site Work Force at a communications facility.
Patent CA-2255871-C (CA)
Inventor: CLARK ROBERT F
IPC: H05B33/12
Filed: 1998-12-07
Granted: 2003-10-07
Abstract: A phosphor particle having thereon a conformal coating of aluminum nitride. By conformal coating is meant a coating that follows the surface contours of the individual particles. The method of making such phosphors comprises the steps of introducing an inert gas into a reaction vessel; charging phosphor particles into the reaction vessel; heating the reaction vessel to a reaction temperature; introducing a nitride coating precursor into the reaction vessel; introducing a coreactant into the reaction vessel; and maintaining the inert gas flow, coreactant flow and precursor supply for a time sufficient to coat the phosphor particles. The nitride coated phosphor particles produced by this method have excellent efficacy ratings and strong luminance values in lamps after 100 hours use in high humidity (i.e., >95%).
Patent CA-2265948-C (CA)
Inventor: QI YIHONG
IPC: H01Q9/16
Filed: 1997-09-17
Granted: 2001-04-10
Abstract: An RF data communications device antenna system (10) is shown that includes a dipole and an electromagnetic coupler (16) that provides coupling between each dipole arm (22, 24) to establish a desired resonant bandwith. An LC matching circuit (30) is provided for matching the dipole to the impedance of the RF  data communications device and for transforming the RF signal between the dipole arms of the antenna system.
Patent CA-2267132-C (CA)
Inventor: BRUGEL EDWARD GUS
IPC: C08G63/82
Filed: 1997-10-06
Granted: 2002-05-21
Abstract: A soluble mono-alkyl Stannoic Acid/glycol liquid phase catalyst produced from the reaction of a mono-alkyl Stannoic Acid and a glycol at a temperature of from at least 180 °C, and its use in preparing high molecular weight polyester polymers.
Patent CA-2270208-C (CA)
Title: Copolymer of styrene and maleic anhydride comprising an epoxy resin composition and a co-cross-linking agent
Inventor: KOPP KARL WALTER
IPC: C08L35/06
Filed: 1997-09-24
Granted: 2004-09-14
Abstract: A resin composition comprising a copolymer of styrene and maleic anhydride (SMA) as cross-linking agent, an epoxy resin, and a co-cross-linking agent characterized in that the co-cross-linking agent is an optionally brominated bisphenol A (BPA), or an optionally brominated bisphenol A diglycidyl ether (BPADGE), or a mixture thereof, and that the composition is free from an allyl network forming compound. The resin composition may be applied to make laminates and printed wiring boards.
Patent CA-2283918-C (CA)
Inventor: SHINOHARA TOSHIAKI
IPC: H04N5/335
Filed: 1999-09-27
Granted: 2002-04-23
Abstract: A communication circuit transmits the digital video signal to a transmission line and receives a clock signal and timing data transmitted through the transmission line.      The timing data indicates a communication timing. A timing signal generation circuit generates timing signals from the detected clock signal to control the imager, the a/d converting circuit, the signal processing circuit, and the communication circuit. A communication control circuit detects a communication timing from the timing data, fudges whether the communication timing is detected within a predetermined condition (communication error), and controls the timing signal generation circuit to stop transmitting the digital video signal when the communication timing is not detected within the predetermined condition to prevent a fail in transmitting the video data. A shutter interval of the imager is further controlled toward a constant shutter interval in response to the communication error.      The video signal is stored in a memory in response to the communication error and read if the communication error eliminated. The communication error is displayed. A system control signal indicative of data transmission period is generated in response to a received cycle start packet in accordance with the obtained data rate and channel timing.
Patent CA-2289846-C (CA)
Inventor: MACHADO JOHN V
IPC: E01F15/14
Filed: 1999-11-15
Granted: 2005-02-15
Abstract: A highway crash cushion (10) provides a novel system response profile that reduces the stopping distance of an impact event. This crash cushion (10) includes a frame (12) that forms at least two bays (38, 40) arranged one behind another in an anticipated impact direction. The frame (12) includes at least three transverse frames (20, 22, 24) and side frames (26, 27, 28, 30) extending between adjacent transverse frames (20, 22, 24). Each of the side frames (26, 27, 28, 30) includes first and second side frame elements (32) coupled to the respective transverse frames (20, 22, 24), and a hinge (34) coupled between the first and second side frame elements (32). At least one energy absorbing element (16) is disposed in one of the bays (38, 40), and at least first and second restraints (46) are coupled to the side frames (26, 27, 28, 30) to resist movement of the hinges (34, 36) at an early stage in an impact event. The crash cushion (10) is partially collapsed automatically as the crash cushion (10) is raised from a horizontal to a vertical position, and then extended automatically to its operational position as the crash cushion is lowered from the vertical to the horizontal position. The energy absorbing elements (16) can include tapered frusto-conical sheet metal elements (94) that are stacked with the smaller ends (98) facing first and second opposed sides of the energy absorbing element.
Patent CA-2290881-C (CA)
Inventor: BARBER LYLE C
IPC: A01B1/16
Filed: 1999-11-25
Granted: 2003-01-14
Abstract: A lawn aerating and weeding tool has an elongate metal attachment secured to one end of an elongate handle. The metal attachment comprises an annular cutting blade at one end of the metal attachment, a retainer at an opposite end of the metal attachment and a connection between the annular cutting blade and the retainer; the retainer being secured to the one end of the handle. The connection provides a gap between the annular cutting blade and the retainer in axial alignment with the annular cutting blade and the handle, the gap being open towards opposite sides of the metal attachment to facilitate removal of earth plugs cut by the annular cutting blade.
Patent CA-2292002-C (CA)
Inventor: KULL ROBERT C
IPC: B60T13/66
Filed: 1999-12-09
Granted: 2003-02-18
Abstract: A low power ECP tramline communication method is provided wherein power consumption by each freight car's on-board ECP transceiver is minimized such that it can be powered indefinitely by a standard locomotive battery. The low power communication method includes normally maintaining each car's ECP transceiver in a sleep mode until signaled by the locomotive master controller to wake it up. The wake-up command for the ECP  transceiver can be sensitive to the length of the message sent by the MC. Alternative, or additional methods of identifying a wake-up message from the MC can include using the signal strength of the message and making the wake-up command sensitive to the ECP trainline power status. In the latter case, detection of zero tramline power is a signals to wake-up the ECP transceiver.
Patent CA-2298173-C (CA)
Title: Module de disjoncteur auto-sectionneur, moyenne tension, et poste de distribution d'energie correspondant
Inventor: STARCK THIERRY
IPC: H02B13/02
Filed: 2000-02-14
Granted: 2009-04-28
Abstract: Le module comporte une enveloppe métallique (3) constituant un caisson blind é accueillant un disjoncteur multipolaire auto-sectionneur (1) où le sectionnement est réalis é par un basculement de l'ensemble des pôles (2), depuis une position de service où chaque pôle est simultanément relié à deux traversées de courant (4) saillant de part et d'autre de la paroi supérieure du caisson. Le poste de distribution comporte une enveloppe métallique constituant un caisson blindé, divisé en compartiments qui permettent notamment de loger séparément trois disjoncteur s multipolaires auto-sectionneurs alignés parallèlement entre deux arrivées. Les pôles de ces disjoncteurs son t reliés entre eux par des traversées de courant au travers de compartiments intermédiaires dans chacun desquels aboutit un départ.
Patent CA-2298567-C (CA)
Inventor: POLITI MARCO
IPC: H04B1/40
Filed: 1998-07-24
Granted: 2004-05-11
Abstract: L'invention concerne un émetteur radio large bande destiné à un signal numérique constitué d'une pluralité de porteuses à modulation numérique pas nécessairement équidistantes. L'émetteur sélectionne la seconde réplique du spectre du signal issu d'un dénumériseur afin d'accroître l'écart entre le signal utile et la composante continue par rapport à ce qu'impliquerait l'utilisation directe du spectre bande de base. L'objet de l'invention consiste en fait à obtenir une bande de transition plus large et par conséquent, un reste oscillateur local un moins contraignant et un filtre images à fréquences radio. Pour éliminer ou réduire les effets de la fonction sin( pi fT)( pi fT) enveloppant le signal issu du numériseur, l'invention prévoit l'utilisation d'une égalisation de type analogique, ou l'adoption d'une technique à insertion zéro (de type analogique ou numérique) ou en général, un égaliseur numérique x/sinx. Le signal large bande est converti aux fréquences radio et le filtre images sélectionne la bande latérale inférieure de manière à annuler l'inversion spectrale réalisée par le numériseur si l'on utilise une réplique d'ordre pair. L'émetteur convient avantageusement pour toutes applications d'émetteur large bande et systèmes mobiles de type GSM 900 MHz, ou DCS 1800 MHz ou UMTS.
Patent CA-2301812-C (CA)
Title: Composition de maquillage ou de soin contenant un organopolysiloxane reticule a groupement oxyalkylene
Inventor: BARA ISABELLE
IPC: A61Q1/04
Filed: 2000-03-24
Granted: 2007-01-16
Abstract: L'invention se rapporte à une composition matifiante contenant une phase grasse liquide et comme agent tensioactif lipophile et épaississant de ladite phase grasse, des particules d'organopolysiloxane solide élastomérique réticulé comportant au moins un groupement oxyalkyléné et notamment oxyéthyléné. L'invention se rapporte aus si à l'utilisation de ces particules d'organopolysiloxane solide élastomérique dans une composition ou pour la fabrication d'une composition de soin ou de maquillage pour matifier la peau ou les lèvres et/ou camoufler les imperfections de la peau et/ou des lèvres. Cette composition est plus spécialement un rouge à lèvres ou un fond de tein t pour le maquillage aussi bien du visage que du corps humain. Cette composition est douce et fraîche à l'application, s'étale facilement, est non-collante et n'est pas desséchante pour la peau et les lèvres. Malgré la présence de corps gras, la composition est parfaitement bien adaptée aux peaux grasses, du faite de son haut pouvoir matifiant.</SDO AB>
Patent CA-2302095-C (CA)
Inventor: DION GERALD
IPC: B65G47/84
Filed: 2000-03-24
Granted: 2005-06-14
Abstract: A lumber transfer system for transferring lumber pieces conveyed on a main conveyor to an upper conveyor is provided by the present invention. The lumber transfer system comprises a pivotable loading ramp movable between a loading position to direct the lumber pieces from the lower conveyor toward the upper conveyor and a standby position where the ramp is set out of the way of the lumber pieces conveyed on the main conveyor. The lumber transfer system further comprises a controllable pushing mechanism for engaging and pushing a lumber piece conveyed on the main conveyor onto and along the ramp when the ramp is in the loading position until the lumber piece reaches the loading end of the upper conveyor. The lumber transfer system further has a controller to control and synchronise the pushing mechanism and the movement of the loading ramp. A lumber transfer system for transferring lumber pieces conveyed on an upper conveyor to a lower conveyor is also provided by the present invention, as well as a quality control station embodying both of the abovementioned lumber transfer systems.
Patent CA-2305052-C (CA)
Inventor: SUNDKVIST JAN-ERIC
IPC: C22B3/18
Filed: 2000-04-12
Granted: 2003-07-08
Abstract: A method of leaching sulphidic material that contains metals and arsenic under oxidising conditions and with the aid of microorganisms is characterised by mixing the material with an acid aqueous solution to form a pulp, and in that the material is leached in a first leaching stage at a pH of below 2 and . at a temperature that ranges from room temperature to about 55°C in the presence of an active quantity of microorganisms of the mesophilic and/or moderately thermophilic type, wherewith the major part of the arsenic content of the material and possibly also part of its metal content is/are leached-out and the arsenic leached from said material is oxidised successively to a pentavalent state.  The remaining leachable metal content of the material is leached-out in a following leaching stage in the presence of an active quantity of an extremely thermophilic micro-organism and at a temperature within the active range of said micro-organism, said temperature being higher than the temperature in the first stage. The pH is suitably raised in the second stage to a level at which the pentavalent arsenic present in solution is caused to transform to a solid state and precipitate-out as a metal-containing arsenate which is separate from the leaching solution together with unleached material in the pulp after termination of the leaching process.
Patent CA-2316234-C (CA)
Title: Flicker filter and interlacer implemented in a television system displaying network application data
Inventor: BRIL VLAD
IPC: H04N7/01
Filed: 1998-12-14
Granted: 2008-03-04
Abstract: A television system (100) with an in-terlaced display screen for displaying net-work application data. A flicker filter (480) is preferably implemented as an infinite im-pulse response (IIR) filter to eliminate sharp transitions in the network application data images. A random access memory (RAM) is used to store the lines of the filtered im-ages and any adjacent lines used for the fil-tering operation. Alternate lines of the fil-tered images are retrieved from the RAM to provide an interlaced image of the filtered network application data images. The inter-laced images are displayed on an interlaced display unit of a television system.
Patent CA-2318696-C (CA)
Title: Triazepinones, process for their preparation and their therapeutic application
Inventor: RUGGIERO DANIEL
IPC: A61K31/41
Filed: 1999-01-11
Granted: 2010-05-11
Abstract: The invention relates to compounds of general formula (I) which find an application in the treatment of diabetes.
Patent CA-2318993-C (CA)
Title: Polymer electrolyte fuel cell stack
Inventor: SAITO KAZUO
IPC: H01M2/18
Filed: 1999-11-26
Granted: 2007-07-03
Abstract: A solid polymer fuel cell stack includes a rectangular separator, the surfac e of which includes coolant channels in a region that is substantially parallel to the long side of the separator and near channels f or fuel gas or oxidizing gas so that the cooling may flow in a direction perpendicular to the separator plane.
Patent CA-2322353-C (CA)
Inventor: POTTIER BENOIT
IPC: B65H27/00
Filed: 2000-10-04
Granted: 2004-03-30
Abstract: A quick release mechanism for a roller (6, 7) wherein the roller (6, 7) is mounted in a frame and rotationally driven (for example, a roller (6, 7) carrying a roll of stretch wrapping film (4) in a stretch wrapping head (1)).      The quick release mechanism includes a pair of stub axles (22, 43) which support either end of the roller (6, 7) in the frame. One of the stub axles (22) are fixed within the frame and driven by a motor (8). The connection between this driven stub axle (22) and the roller (6, 7) ensures that no relative rotational movement occurs. The other stub axle (43) is "lockable" in a hole in the frame but is removable therefrom. The connection between the removable stub axle (43) and the roller (6, 7) allows free relative rotational movement. Withdrawal of the removable stub axle (43) from the frame allows the roller (6, 7) to be disconnected from its connection with the driven stub axle (22) and removed from the frame. Refitting of the roller (6, 7) is simply a reversal of this process.
Patent CA-2322720-C (CA)
Title: Method and apparatus for selecting network entities
Inventor: ROCHFORD SUZANNE L
IPC: H04L12/24
Filed: 2000-10-10
Granted: 2009-06-30
Abstract: Network management can be made more efficient by using a graphical user interface that is clear and concise in what network information is identified and subsequently displayed. One key to improving graphical user interfaces is the categorizing of network entities into a series of attribute layers that define different features of the network entities. For instance, a layer of attributes may include geographical regions, services, customers, or types of network entities. By selecting a base view from the group of geographical regions and then network features for filtering operations from one or more of the other attribute layers, the network entities defined by the selected network features can be identified and isolated with all other irrelevant network entities being filtered out. The advantages to this graphical user interface is especially evident when considering the case that a specific customer, service, or network entity requires special attention. Other features of this interface include bookmarking, archiving, and monitoring specific views of a network based off a base view along with one or more filtered network features.
Patent CA-2323624-C (CA)
Title: Boitier servant a proteger un disque
Inventor: LAU KWOK DIN
IPC: B65D85/57
Filed: 1999-08-08
Granted: 2002-10-29
Abstract: Support (10) de disque (22) possédant une ouverture centrale (25) et des surfaces avant et arrière (23, 24), et comportant une base (14) possédant un panneau plan (19), ainsi qu'un socle (20) saillant vers l'avant depuis la base sur un axe (21). Ce socle comprend un bouton central (44) possédant des éléments de retenue (38) formant une saillie radiale vers l'extérieur et des tiges (36) s'étendant dans un sens axial et constituant un seul ensemble sous forme de segments de bouton (44) avec les éléments correspondants des éléments de retenue. Une paire de bras (40) écartée latéralement et reliée à chacune des tiges supporte la partie bouton en porte-à-faux par rapport à la base, les bras étant inclinés vers l'intérieur dans un sens radial et vers l'avant dans un sens axial depuis le panneau de la base et présentant dans leur ensemble une position allongée servant à retenir le disque par contact de la surface avant et des éléments de retenue à proximité d'une ouverture centrale. Chaque paire de bras chevauche un doigt respectif (42) du socle, de manière à solliciter par contact la surface arrière du disque à proximité de l'ouverture centrale afin de déplacer le disque dans un sens axial vers l'avant par rapport aux éléments de retenue quand les bras se trouvent en position appuyée, les doigts pouvant être défléchis, de façon à être situés dans le même plan à proximité des bras, la saillie conique de la base s'étendant depuis le panneau vers le bouton et comprenant des parties principales des bras et des doigts, cette saillie conique comprenant, de plus, une pluralité de jupes (46) s'étendant entre des paires contiguës des bras, tout en en étant peu éloignées afin de protéger ces derniers.
Patent CA-2326262-C (CA)
Title: Men's disposable urine holding bag
Inventor: KURITA NORIYUKI
IPC: A61F13/15
Filed: 2000-11-17
Granted: 2003-12-23
Abstract: A men's disposable urine holding bag includes a base sheet 2 being intermittently bonded to define a bond zone 5A along transversely opposite side edges 5 of the base sheet 2 put flat together to define a mouth 4 for insertion of the penis and a body fluid absorbent panel 3 attached to an inner side of the base sheet, wherein the bond zone 5A has a water pressure resistance of 50 - 1500 mm.