baber/WOPTO huggingface dataset:
Patent CA-2270998-C (CA)
Title: A method for preventing or retarding the formation of gas hydrates
Inventor: COHEN JEFFREY M
IPC: C09K8/52
Filed: 1997-10-06
Granted: 2007-07-17
Abstract: A composition for preventing or retarding the formation of gas hydrates or f or reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit, comprising, (a) a polymer or copolymer selected from a terpolymer of vinyl pyrrolidone, vinyl caprolactam and an ammonium derivative monomer having from 6 to 12 carbon atoms, selected from the group consisting of dialkyl aminoalkyl methacrylamide, dialkyl dialkenyl ammonium halide and a dialkylamino alkyl acrylate or methacrylate, a copolymer of vinyl pyrrolidone and vinyl caprolactam, and a homopolymer of vinyl caprolactam, and (b) an alcohol containing three to five carbon atoms and one hydroxy group, or a low molecular weight glycol ether containing an alkoxy group having at least 3 carbon atoms.
Patent CA-2272669-C (CA)
Title: Slide bar for a snowmobile track suspension system
Inventor: GULLA JOSEPH M
IPC: B62D55/10
Filed: 1999-05-25
Granted: 2007-04-10
Abstract: A slide bar for snowmobiles has sinusoidal grooves running lengthwise on the sliding surface that open at the aft end of the slide bar for drainage. The sinusoidal grooves retain packed snow accumulated during operation over snow-covered terrain, until the packed snow absorbs sufficient heat to soften and pass through the recurving path of the grooves. The retention characteristic of the sinusoial grooves for holding packed snow provides extended lubrication and cooling to the slide bar and track when the snowmobile leaves snow covered terrain to cross intermittent stretches of bare ground
Patent CA-2275166-C (CA)
Title: Novel benzopyran derivatives
Inventor: KIM JU SU
IPC: A61K31/453
Filed: 1997-12-13
Granted: 2003-07-22
Abstract: The present invention relates to a novel benzopyran derivative having anti- estrogenic activity. More specifically, the present invention relates to a novel benzopyran derivative represented by formula (I) and pharmaceutically acceptable salt thereof, in which <o>-----</o> represents a single bond or a double bond; R1 and R2 independently of one another represent hydrogen, hydroxy or OR group, wherein R represents acyl or alkyl; R3 represents hydrogen, lower alkyl or halogeno lower alkyl, provided that when <o>-----</o> represents a double bond, R3 is not present; R4 represents hydrogen or lower alkyl; A represents a group of formula (a), (b), (c) or (d); R5, R6 and R7 independently of one another represent hydrogen, alkyl, halogenoalkyl, alkenyl or halogenoalkenyl, or R6 and R7 together with nitrogen atom to which they are bound can form a 4- to 8-membered heterocyclic ring which can be substituted with R5; X represents O, S or NR8, wherein R8 represents hydrogen or lower alkyl; m denotes an integer of 2 to 15; n denotes an integer of 0 to 2; and p denotes an integer of 0 to 4, and to a process for preparation thereof and a pharmaceutical composition having anti-estrogenic activity which contains the compound (I) as an active component.
Patent CA-2275763-C (CA)
Inventor: LEHNER JOACHIM HERMANN
IPC: A61K31/549
Filed: 1997-12-23
Granted: 2006-11-21
Abstract: L'invention concerne l'utilisation de taurolidine ou de taurultam dans un procédé permettant de combattre le développement de germes infectieux ou septicémiques dans des dispositifs d'administration. Dans le procédé selon l'invention, des solutions de taurolidine ou de taurultam sont utilisées comme matières de scellement ou de purge pour empêcher ou réduire la présence de germes septicémiques dans des systèmes d'administration, tels que des systèmes à orifice et/ou des cathéters par lesquels on administre des liquides à un patient.
Patent CA-2279580-C (CA)
Inventor: ONO MORIAKI
IPC: B21C37/08
Filed: 1996-04-26
Granted: 2003-01-21
Abstract: A method for producing a steel pipe using a high density energy beam, comprises the steps of: (a) forming a steel strip having two edges into a cylindrical form so that the two edges face each other; (b) preheating the two edges of the steel strip to a temperature of a melting point or less by applying a high frequency electric current to the two edges; (c) pressing the two edges of the steel strip against each other by using squeeze rolls to form a joint portion; (d) irradiating a high density energy beam sufficient to fuse a full thickness of the steel strip to a portion adjacent to a squeeze point to weld the joint portion; and (e) controlling an upset using the squeeze rolls enough to reduce a weld defect.
Patent CA-2288102-C (CA)
Title: Endstop and docking means for thermoplastic bags
Inventor: DAIS BRIAN C
IPC: A44B19/16
Filed: 1998-04-24
Granted: 2002-09-17
Abstract: In a thermoplastic bag having a reclosable fastener (11) extending along the  mouth of the bag and a slider (10) straddling the fastener for opening and closing the fastener, the fastener including two opposing interlocking fastener strips (14, 15) along the side walls (12, 13) of the bag, the slide r adapted to maintain straddling relation with the fastener, an improved endst op means (30) proximate to at least one end of the reclosable fastener, the endstop means being formed from the material of the fastener strips and risi ng vertically from the fastener to a height adequate to engage the slider and prevent movement of the slider past the end of the bag. A rail (25) extends along the length of at least one of the fastener strips on the outside thereof, the rail extending to a point sufficient to permit the slider to cooperate with the rail to maintain straddling relation with the fastener wh en the slider reaches the endstop. Docking means (40) and methods of making endstop means and docking means are also disclosed.
Patent CA-2289469-C (CA)
Title: Method and device for applying a pattern onto a support means
Inventor: JOHANSSON PATRIK
IPC: B44C1/16
Filed: 1998-05-18
Granted: 2004-11-09
Abstract: A method and device for applying a pattern (70) onto a support means (2) of a sign, utilising a foil (17) comprising a pattern layer (18) and a carrier layer (73) with an adhesive layer (74) uniting them, said pattern being cut out in the pattern layer of the foil by means of a controlled cutting device, after which the foil is placed on a laminating table (3) in an application device (1). According to the invention a traverse (21) is passed in controlled manner over the foil placed on the laminating table, and a self-adhesive transfer film (19), supplied from a roll (20) over and around a press roll (34) rotatably journalled, at a press device (32) is applied under pressure on the foil. The carrier layer and spill of the pattern layer are removed and the pattern parts thus remaining are brought into contact with the support means, with the adhesive layer of the pattern parts now exposed. The press roll is then again passed over the transfer film, pattern parts and support means so that the pattern parts are transferred permanently to said support means, after which the transfer film is removed from the support means.
Patent CA-2292314-C (CA)
Inventor: LIU LIZHI
IPC: C10G65/12
Filed: 1999-12-13
Granted: 2007-02-06
Abstract: This invention discloses a single-stage process for producing diesel oils of superior quality and low solidifying point from fraction oils under controlled reaction conditions, comprising a hydrorefining step, optionally a hydroupgrading step and a hydrodewaxing step combined in series. The process of the invention is simplified, the operation is simple, the adaptability to feedstocks is good, and the quality of diesel oil product is improved, and when the hydroupgrading step is comprised, the cetane number of the product is further boosted. A hydrorefining catalyst having a higher content of NiO and good anti-coking performance and a hydroupgrading catalyst and hydrodewaxing catalyst having an adequate acidity and strong resistance to NH3 and H2S respectively are preferably used in the present invention to achieve better results.
Patent CA-2295397-C (CA)
Title: Service advertisements in wireless local networks
Inventor: HILD STEFAN G
IPC: G06Q30/00
Filed: 2000-01-13
Granted: 2010-03-30
Abstract: The present invention concerns an apparatus for exchanging service information with other devices. The present apparatus comprises a transceiver, a processing unit, a memory for storing information about its local services and/or services provided by other devices, and a protocol resource manager. This protocol resource manager (a) triggers the transceiver to send service information, comprising information about itself and/or other known devices to other devices, (b) chooses a timeout value T A, (c) ensures that the apparatus listens for up to a maximum time T A for service information received by said transceiver, (d) if T A timed out without having received such service information by said transceiver, triggers said transceiver to repeat step a, (e) if such service information was received by said transceiver prior to T A timing out, checks whether said service information received comprises information about itself; and (f) if yes, then chooses another timeout value T A, and continuing with step c, (g) if no, then continues with step a.
Patent CA-2300139-C (CA)
Inventor: KOBATA MASAMI
IPC: C09D5/03
Filed: 1998-08-07
Granted: 2004-02-17
Abstract: The present invention provides a powder coating composition for forming a multilayer film, obtainable by dry blending a lower layer-forming thermosetting powder coating material (A) and an upper layer-forming thermosetting powder coating material (B), wherein at least one of the following conditions is satisfied: (I) the material (A) contains an onium salt compound; (II) particles of 45 µm or smaller diameter account for at least 90 wt.% of each of the materials (A) and (B); and (III) the material (A) is higher than the material (B) in melt viscosity (Pa.cndot.s) measured at 130°C.      The powder coating composition of the invention is capable of sufficiently separating into layers and forming a multilayer film with excellent properties.
Patent CA-2307170-C (CA)
Inventor: PAPADOPOULOS NICK
IPC: E21B34/06
Filed: 2000-04-27
Granted: 2005-09-06
Abstract: A drain valve is provided for draining a standpipe connected to a down-hole pump. The valve is connected between the pump and the standpipe and maintains fluid communication between the two. The valve comprises a tubular valve body having at least one port through its side wall and a tubular sleeve that fits over the body to seal the port. The valve is operated by pulling up on a rope attached to the sleeve to reveal the port whereby substances contained in the standpipe can drain through the port. After the standpipe has emptied, the pump and the standpipe can be lifted out of the hole without having to lift the weight of the substances contained in the standpipe.
Patent CA-2308079-C (CA)
Title: Vehicle lamp housing having multiple mounting means, and method of using same
Inventor: JACOBS DENNIS F
IPC: F21Y101/00
Filed: 2000-05-11
Granted: 2007-07-24
Abstract: A plastic lamp housing for attaching to a vehicle is provided with auxiliary mounting structure to allow reattachment to a vehicle, subsequent to minor breakage of a primary mounting structure provided integrally therewith. The lamp housing includes a housing body for supportively receiving at least one bulb therein and a projecting portion, integrally provided with the housing body, for use in connecting the lamp housing to a vehicle. The projecting portion extends outwardly from a surface of the housing body and may have a groove formed therein proximate the first surface of the housing body to provide a break--away point. The housing body further includes fastener receiving structure provided on and an auxiliary mounting bracket which may be readily secured to the fastener receiving structure, for use in reattaching the housing body to the vehicle, without affecting the structural integrity, functionality or exterior appearance of the housing body.
Patent CA-2308192-C (CA)
Title: 4'-c-ethynyl pyrimidine nucleoside compounds
Inventor: MACHIDA HARUHIKO
IPC: C07H19/06
Filed: 2000-05-12
Granted: 2007-09-18
Abstract: The invention provides 4'-C-ethynyl pyrimidine nucleosides (other than 4'-C-ethynylthymidine) represented by formula [I]: (see formula I) wherein B represents a base selected from the group consisting of pyrimidine and derivatives thereof; X represents a hydrogen atom or a hydroxyl group; and R represents a hydrogen atom or a phosphate residue; and a pharmaceutical composition containing any one of the compounds and a pharmaceutically acceptable carrier. Preferably, the composition is used as an anti-HIV agent or a drug for treating AIDS.
Patent CA-2313190-C (CA)
Inventor: TATE SIMON PAUL
IPC: F21V33/00
Filed: 1999-10-07
Granted: 2009-06-02
Abstract: An alarm for detecting radiation and/or pollutants such as smoke, carbon monoxide or the like. The alarm is arranged to interconnect between a light fitting and a light source such as a bulb. The alarm may be powered by the light fitting when the light fitting is energised and may be powered by a battery when the light fitting is de-energised. The alarm has control means responsive to the energising and de-energising of the light fitting a preset number of times over a preset time period to apply a reset signal to the alarm thereby to reset the alarm in the event of accidental triggering thereof.
Patent CA-2321465-C (CA)
Inventor: REY FRANCOIS
IPC: H04N5/7617
Filed: 1999-03-08
Granted: 2006-04-18
Abstract: L'invention concerne un terminal de traitement de données numériques audiovisuelles ou multimédia, qui comprend un système de traitement de données et une mémoire. Le système de traitement de données enregistre les données relatives au profil des utilisateurs (81, 82, 83) qui représentent les caractéristiques ou les préférences d'utilisateurs multiples (80) du terminal. En mode de réalisation préféré, les profils d'utilisateur correspondent aux modes d'exploitation du terminal, et les données relatives au profil des utilisateurs spécifient les droits de priorité d'accès de chaque utilisateur aux ressources du terminal.
Patent CA-2327864-C (CA)
Inventor: WANG NUI
IPC: F16D51/00
Filed: 1999-04-01
Granted: 2007-05-22
Abstract: Ensemble segment de frein (1) conçu pour un frein à tambour, présentant une construction monobloc et comprenant un segment de frein (2) de forme généralement circulaire possédant deux extrémités séparées et opposées (17, 18) et définissant une paire de sections de montage (11, 12) de revêtement de friction situées sur les côtés opposés du segment de frein (2). La section transversale de ces sections (11, 12) présente une forme de T définissant une plate-forme incurvée extérieure radiale (15) servant à monter un revêtement de friction (16) et une âme (14) s'étendant vers l'intérieur dans un sens radial. Ce segment de frein (2) comprend des moyens d'articulation (27, 28) entre les sections (11, 12) afin de faciliter la rotation desdites sections (11, 12), de manière à modifier la séparation entre les extrémités de frein (17, 18) entre un état opérationnel dans lequel le revêtement de friction (16) vient en contact avec une surface de freinage d'un tambour auquel est fixé l'ensemble segment de frein (1) et un état non opérationnel dans lequel ce contact est inexistant. Cet ensemble segment de frein comprend également un plateau de frein dépendant du segment de frein (2) dans la zone des moyens d'articulation (27, 28) afin de monter le segment de frein (2) à un support d'ensemble segment de frein.
Patent CA-2332254-C (CA)
Title: Catheter having mapping assembly
Inventor: HAISSAGUERRE MICHEL
IPC: A61B5/296
Filed: 2001-01-25
Granted: 2009-03-24
Abstract: A mapping catheter comprises a catheter body and a mapping assembly. The catheter body has an outer wall, proximal and distal ends, and at least one lumen extending therethrough. The mapping assembly comprises a generally straight proximal region attached to the catheter body, a generally circular main region distal the proximal region having an outer circumference, and a generally straight distal region distal the main region. The mapping assembly also comprises a support member having shape-memory, a non-conductive covering over the support member, and a plurality of electrodes on the non-conductive covering along the generally circular main region.
Patent CA-2343987-C (CA)
Inventor: SIRACKI MICHAEL A
IPC: E21B10/61
Filed: 2001-04-12
Granted: 2007-02-13
Abstract: A drill bit having one or more nozzle retention bodies attached by a single orientation mounting is disclosed, as is the associated method for its manufacture. The upper end of the nozzle retention body has a fluid inlet in communication with the internal fluid plenum of the drill bit, and the lower end of the nozzle retention body includes a fluid outlet that defines an exit flow angle. The exit flow angle is angularly disposed from the longitudinal axis of the drill bit. The nozzle retention body may advantageously be chamfered or the like to provide a reduced cross-sectional area at the lower end of the nozzle retention body. The outer surface of the nozzle retention body (and attached hardened elements) may extend substantially to gage, or may fall short of that diameter.
Patent CA-2346120-C (CA)
Title: Procede d'evaluation de la qualite du bois et appareil correspondant
Inventor: LAITINEN JYRKI
IPC: G01N21/84
Filed: 1999-10-27
Granted: 2006-11-28
Abstract: Cette invention a trait à un procédé d'évaluation de la qualité du bois et à l'appareil correspondant. L'arbre n'est pas uniquement constitué du bois parfait mais aussi d'écorce et il comporte également des noeuds, les caractéristiques optiques de ces deux derniers composants étant différentes de celles du bois parfait. Les arbres écorcés (308) sont transformés en sciure de bois (322). Celle-ci est éclairée par un rayonnement optique et le rayonnement est reçu par un appareil de prises de vue (330). Celui-ci envoie à un ordinateur (332) un signal correspondant au rayonnement réfléchi par la sciure de bois (322) ou la traversant. L'ordinateur, d'après les caractéristiques optiques de la sciure de bois, détermine les quantités d'écorce, de noeuds et/ou d'imperfections qui se trouvent dans cette sciure.
Patent CA-2359717-C (CA)
Inventor: URISH JOSEPH MICHAEL
IPC: H02M7/23
Filed: 2001-10-17
Granted: 2005-05-17
Abstract: A ground power unit for providing do power for aircraft includes a source of 3-phase ac power and a transformer/rectifier arrangement for converting 3-phase ac power to do power. The transformer/rectifier arrangement includes an A-phase transformer formed by an A-phase magnetic member, an A-phase primary winding having first and second sides, and an A-phase secondary winding; a B-phase transformer formed by a B-phase magnetic member, a B-phase primary winding having first and second sides, and a B-phase secondary winding; and a C-phase transformer formed by a C-phase magnetic member, a C-phase primary winding having first and second sides, and a C-phase secondary winding. The A-phase primary winding first side is connected to receive A-phase power, the B-phase primary winding first side is connected to receive B-phase power, and the C-phase primary winding first side is connected to receive C-phase power. The A-phase primary winding second side, B-phase primary winding second side and C-phase primary winding second side are connected together for delivering current traveling out of one of the second-sides into at least one of the other second sides.
Patent CA-2359797-C (CA)
Inventor: STILP LOUIS A
IPC: H04W4/90
Filed: 1999-12-13
Granted: 2006-11-07
Abstract: An external calibration method comprises the steps of transmitting a first reference signal from a reference transmitter; receiving the first reference signal at first and second receiver systems;  (10-2A-10-2C); determining a first error value by comparing a measured TDOA value with a theoretical TDOA value associated with the known locations of the receiver systems and the known location of the reference transmitter; and utilizing the first error value to correct subsequent TDOA measurements associated with a mobile transmitter to be located. An internal calibration method comprises the steps of injecting a comb signal into the first receiver system: utilizing the comb signal to obtain an estimate of the manner in which the transfer function varies across the bandwidth of the first receiver system: and utilizing the estimate to mitigate the effects of the variation of the first transfer function on the time measurement made by the first receiver system.
Patent CA-2364239-C (CA)
Title: Splitter module for folding system on printing machines
Inventor: JESCHKE ANDREAS
IPC: B65H29/58
Filed: 2001-11-29
Granted: 2005-10-11
Abstract: Apparatus for splitting a stream of products coming from a folding group making any desired fold and feeding it to either of two further folding groups making a respective further fold includes a stripper assembly guiding the products away from a folding cylinder of the folding group making the desired fold, a diverter element, and tape guide systems that transport the products from the latter to the further folding groups. The stripper assembly includes a tape guide module that can be pivoted towards the folding cylinder, and at least one stripper tongue; the tape guide systems and the diverter element being integrated into a splitter module.
Patent CA-2365644-C (CA)
Title: Portable electronic charge and authorization devices and methods therefor
Inventor: WANG YNJIUN
IPC: H04W4/24
Filed: 2000-02-25
Granted: 2012-09-25
Abstract: A portable transaction arrangement for permitting a user (200) to conduct a transaction vis-à-vis a charge card terminal of an electronic transaction system (102). The charge card terminal is configured to communicate with a charge card for the purpose of conducting the charge card transaction. The charge card is one of a magnetic stripe card and an electronic smart card. The portable transaction arrangement includes an emulation card having an emulation card interface. The emulation card interface emulates an interface of the charge card. The interface (202) of the charge card facilitates communication between the charge card and the charge card terminal. There is a portable emulation card to store first charge card data pertaining to a first charge card of the user, and an authentication mechanism. The portable emulation card write the first charge card data to the emulation card if the user is authenticated, thereby allowing the emulation card to appear through the emulation card interface after writing, and enabling the charge card terminal to read the first charge card data from the emulation card.
Patent CA-2369440-C (CA)
Inventor: KARSTEN PETRUS J A
IPC: B32B7/022
Filed: 2000-03-29
Granted: 2011-04-26
Abstract: A thermoplastic polymer based multilayer structure, substantially devoid of vinyl chloride polymers and low molecular mass plasticizers, comprising at least 3 layers: a first layer (A) comprising at least 60 % by weight of at least one polyolefin with controllable crystallinity, defined as comprising at least 90 % ethylene, propylene or butene and having a softening temperature of less than 121 ·C, the thickness of the first layer being 20 % of the total thickness of the structure, whereby the first layer has a modulus of elasticity of less than 350 MPa; a second layer (B)disposed between the first (A) and third (C) layer, comprising at least 40 % by weight of at least one polyolefin with a controllable crystallinity, whereby the second layer has an overall softening temperature that is lower than 121 ·C; a third layer (C) comprising at least 50 % by weight of at least one polyolefin with controllable crystallinity, the thickness of the third layer being 5 - 30 % of the total thickness of the structure, and the third layer having a modulus of elasticity that is lower than that of the first layer.