baber/WOPTO huggingface dataset:
Patent CA-2317485-A1 (CA)
Inventor: BOSCARATO ALESSIA
IPC: C08F10/02
Filed: 1999-11-03
Abstract: A class of metallocene compounds is disclosed having general formula (I) or (Ib): wherein R1 are hydrocarbon groups; R2 are hydrogen or hydrocarbon groups, M is a transition metal of group 3, 4, 5, 6 or to the lanthanide or actinide groups in the Periodic Table of the Elements (new IUPAC version), M' is transition metal selected from those belonging to group 3 or to the lanthanide or actinide groups in the Periodic Table of the Elements (new IUPAC  version), X is a monoanionic ligand, p is an integer of from 0 to 3, being equal to the oxidation state of the metal M minus two, q is an integer from 3 to 5, and n is an integer from 1 to 4, when the six-membered rings of the compound of formula (Ia) are not perhydrated, and is an integer for from 0 to 4, when the six-membered rings of the compound of formula (Ia) are perhydrated as well as in the compound of formula (Ib). These metallocenes are useful as catalyst components for the polymerisation of olefins.
Patent CA-2317488-A1 (CA)
Title: Process for making silanized colloidal silica
Inventor: VAN VLASSELAER PETER
IPC: C09C1/30
Filed: 1999-01-07
Abstract: A method of preparing an aqueous suspension of organosilanized colloidal silica particles is disclosed. Such particles are used in a variety of applications including density gradient separation media, anti-abrasion coatings and toner materials. The disclosed process is environmentally safe and produces a product that is aqueous and non-toxic to most biological cells.
Patent CA-2317710-A1 (CA)
Inventor: NOHREN JOHN E JR
IPC: B01D35/04
Filed: 1998-04-17
Abstract: Cette invention se rapporte à un système de filtre (10) conçu pour être utilisé avec une bouteille (11) présentant un goulot ou une extrémité ouverte (12) ayant une section transversale circulaire. Ce système de filtre contient un milieu filtrant fin (17) ayant une poromètrie moyenne d'environ 1 à 3 microns et capable d'éliminer les contaminants de 3 à 4 microns et davantage, ainsi qu'un milieu filtrant intérieur (22) disposé radialement à l'intérieur du milieu filtrant fin. Le milieu filtrant intérieur renferme du charbon activé, de préférence une matrice de plastique et de charbon activé poreuse, présentant une porosité comprise entre environ 10 et 150 microns. Une enveloppe extérieure (13) contient le milieu filtrant et le milieu filtrant intérieur et elle est dimensionnée de façon à pouvoir passer à travers le goulot ou l'extrémité ouverte de la bouteille. Le milieu filtrant fin comporte de préférence des feuilles (18, 19) sur les faces opposées d'un milieu filtrant à microfibres (20) constitué par des microfibres de verre dont les diamètres de la section transversale varient, le milieu filtrant fin ayant une structure plissée ou en accordéon. On peut également prévoir un système de filtre comprenant une paille (58) maintenue pressée par ressort. Ce système de filtre peut également comporter une enveloppe en plastique généralement tubulaire (13) pourvue d'un certain nombre de nervures (15) ayant chacune une surface interne et une surface externe au moins 50 % plus grande que la surface interne. On peut également prévoir un élément filtre comprenant une matrice rigide poreuse d'au moins 35 % de charbon activé, de styrène et d'un polymère d'élimination des métaux lié au styrène. Ce système de filtre peut également comprendre une enveloppe d'élément filtre s'étendant vers le haut à partir d'un bouchon et reliée opérationnellement audit bouchon, cette enveloppe ayant une superficie de section transversale maximum au moins 20 % plus grande que la superficie du dessus du bouchon, par exemple sous la forme d'un disque ou d'une sphère. On peut former ce filtre en accouplant des parties hémisphériques, et l'enveloppe peut avoir une configuration nouvelle.
Patent CA-2318220-A1 (CA)
Title: Echangeur de chaleur regeneratif rotatif
Inventor: BROPHY MARK E
IPC: F28D19/04
Filed: 1998-09-03
Abstract: Dans cette invention, les paniers d'échange thermique (22) d'un réchauffeur d'air régénératif rotatif sont chargés radialement dans le rotor (14) plutôt qu'axialement à partir de l'extrémité du circuit. Le rotor (14) est divisé en secteurs (20) par des membranes (34), des grilles de support (40) sont prévues dans chaque section (20) du rotor et les paniers (22) sont placés et maintenus en support sur ces grilles (40). Les paniers (22) sont retirés du rotor (14) à l'aide d'une barre ou d'un outil (44) de démontage, qui comprend une partie levier et une partie crochet (46) avec un bord biseauté (50). On introduit le bord biseauté (50) puis toute la partie crochet sous le bord extérieur d'un panier (22) et on fait tourner la partie crochet avec la partie levier, pour amener la partie crochet (46) en prise avec le panier (22). On retire ensuite la barre ou l'outil (44) de démontage vers l'extérieur, pour sortir le panier (22).
Patent CA-2322147-A1 (CA)
Title: Method and apparatus for predicting an operating characteristic of a rotary earth boring bit
Inventor: JARVIS BRIAN PETER
IPC: E21B44/00
Filed: 2000-10-04
Abstract: The present invention is a method and apparatus which accurately predicts one or more operating characteristics of an earth boring drill bit operated under a set of known operating conditions. A range of operating conditions may be input so that the operating characteristic(s) of the drill bit may be predicted over, and perhaps beyond the range the drill bit designer has anticipated. In this manner, a new drill bit design may be refined and/or proven with a high level of confidence prior to manufacture. Only minimal field testing of the new design is required to verify its performance.
Patent CA-2335012-A1 (CA)
Title: Pharmaceutical compositions for the prevention and treatment of central nervous system disorders
Inventor: BENCHERIF MEROUANE
IPC: A61P25/28
Filed: 1999-06-02
Abstract: A pharmaceutical composition incorporates a pharmaceutically effective amount of at least two components, one of those components being a nicotinic compound capable of interacting with nicotinic cholinergic receptors (e.g., a nicotinic agonist, such as E-metanicotine) and one of those components being an acetylcholinesterase inhibitor (e.g., tacrine). The pharmaceutical composition is useful for treating CNS disorders, such as Alzheimer's disease.
Patent CA-2336332-A1 (CA)
Title: Switchable combiner/splitter
Inventor: POSNER RICHARD
IPC: H04B7/06
Filed: 1999-07-01
Abstract: An apparatus for either combining a plurality of high frequency RF signal inputs or splitting a single RF frequency input into a plurality of RF signal outputs employs a switchable combining/splitting section and a switchable matching section. The switchable combining/splitting section operates to either combine the RF signal inputs to a common summed output or to take a matched input and to split it into a plurality of outputs. The matching section operates to switchably match the impedance presented by the combining/splitting section to achieve a minimum or zero insertion loss through the apparatus.
Patent CA-2338704-A1 (CA)
Title: Oral liquid mucoadhesive compositions
Inventor: DOBROZSI DOUGLAS JOSEPH
IPC: A61P9/00
Filed: 1999-08-24
Abstract: The present invention relates to a per oral, oral, or intranasal pharmaceutical mucoretentive, aqueous liquid composition comprising from about 2 % to about 50 %, by weight of the composition, of colloidal particles of silica, titanium dioxide, clay, and mixtures thereof and a safe and effective amount of a pharmaceutical active selected from the group consisting of analgesics, decongestants, expectorants, antitussives, antihistamines, sensory agents, gastrointestinal agents, and mixtures thereof; wherein the composition has a sedimentation volume ratio of greater than about 0.90 and wherein the triggered viscosity ratio of the composition is at least about 1.2. The present invention further relates to a method of coating the alimentary canal or nasal mucosa, in particular to a method of preventing or treating symptoms of upper respiratory tract infections or upper respiratory tract tissue irritation or damage, by administering a safe and effective amount of the above composition.
Patent CA-2340228-A1 (CA)
Inventor: TEGENFELDT JONAS O
IPC: G01N21/64
Filed: 1999-08-13
Abstract: The invention is a system for optically characterizing polymers. Preferably the system is used to perform linear analysis of the polymers.
Patent CA-2343064-A1 (CA)
Inventor: TANADA KAZUO
IPC: H03J7/02
Filed: 2000-07-03
Abstract: A frequency error estimating device for estimating the frequency error betwe en the local oscillation frequency of a receiver and the carrier frequency of t he received signal comprising a frequency error estimator (11) for suppressing the noise component included in the received signal according to the filter factor inputted to an averaging filter (23) and estimating the frequency err or on the basis of the output of the filter, and a filter factor determinator (12) for calculating the filter factor from the difference of the estimate o f the frequency error between first symbols and thereby changing the characteristics of the filter, wherein high estimation accuracy of the estimation of the frequency error of a receiver can be ensured without marri ng the follow-up ability with respect to the variation with time due to the Doppler frequency.
Patent CA-2343480-A1 (CA)
Title: Chain and cartridge actuator
Inventor: PEREZ JOSE
IPC: F15B15/06
Filed: 2001-04-06
Abstract: An actuator which comprises a pair of elongated elastomer tubes, sealed by respective members at each end, the members at the one end being fixed and the members at the opposite end sliding in guides, the sliding ends of the first and second tubes being connected by a chain and sprocket to convert linear motion to rotary motion.
Patent CA-2344015-A1 (CA)
Title: A process for continuously regenerating catalyst particles
Inventor: FU JINHUI
IPC: C10G35/12
Filed: 2001-04-17
Abstract: A process for continuously regenerating catalyst particles comprising: passing deactivated catalyst particles downwards in sequence through the first coke-burning zone, second coke-burning zone, oxychlorination zone, and calcination zone in the regenerator, wherein the catalyst particles are contacted with the regeneration gas from the second coke-burning zone, the supplemented dry air, and an inert gas in the first coke-burning zone; introducing an oxygen-containing regeneration gas from the second coke- burning zone into the regenerator, wherein said gas is contacted with the catalyst particles from the first coke burning zone; withdrawing the regeneration gas from the regenerator through the first coke-burning zone and, after the recovery system, recycling it to the second coke-burning zone. The regeneration gas may pass the catalyst bed in either a centrifugal or centripetal way. This process prevents the regeneration gas with a high water content from contacting the catalyst at a high temperature as in the conventional continuous coke-burning processes for regenerating catalyst particles and thereby reduces the decreasing rate of the specific surface area of the catalyst and prolongs its service life.
Patent CA-2347683-A1 (CA)
Title: Band putter
Inventor: KLYVE JON
IPC: A63B53/04
Filed: 1999-10-15
Abstract: A golf club of the putter type, with a club head (11) with at the outset a level, vertical or largely vertically positioned strike area (19). The strike area (19) is arranged as a long-shaped, lengthways extended interchangeable/replaceable tension bar (15), which is clamped to two fastening clamps at the opposite ends of the club head (11) by means of the two opposite end parts (18a and 18b) of the lengthways extended interchangeable/replaceable tension bar. The lengthways extended interchangeable/replaceable part has, in an area between the two opposite end parts (18a and 18b), a main part (15a) which extends freely over a hollow (11e) in the club head (11).
Patent CA-2350085-A1 (CA)
Title: Methylated cpg island amplification (mca)
Inventor: TOYOTA MINORU
IPC: C12Q1/68
Filed: 1999-11-02
Abstract: A method is provided for identifying a methylated CpG containing nucleic aci d including contacting a nucleic acid with a methylation sensitive restriction  endonuclease that cleaves unmethylated CpG sites, contacting the sample with  an isoschizomer of the methylation sensitive restriction endonuclease, where in the isoschizomer cleaves both methylated and unmethylated CpG sites. The method also includes adding an oligonucleotide under conditions and for a ti me to allow ligation of the oligonucleotide to nucleic acid cleaved by the restriction endonuclease, and amplifying the nucleic acid. A method is also provided for detecting an age associated disorder including contacting a nucleic acid with a methylation sensitive restriction endonuclease that cleaves unmethylated CpG sites, contacting the sample with an isoschizomer o f the methylation sensitive restriction endonuclease, wherein the isoschizomer  cleaves both methylated and unmethylated CpG sites. The method also includes  adding an oligonucleotide under conditions and for a time to allow ligation of the oligonucleotide to nucleic acid cleaved by the restriction endonuclease,  and amplifying the nucleic acid. The amplified digested nucleic acid is adhered to a membrane, and hybridized with a probe of interest. A kit useful  for detection ofa CpG containing nucleic acid is also provided.
Patent CA-2350684-A1 (CA)
Title: Engine control circuit for a lawn tractor
Inventor: BAGGETT THOMAS D
IPC: B60W30/18
Filed: 2001-06-15
Abstract: An engine control circuit for a lawn tractor having a magneto-operated engine. The circuit includes a four-position switch. When in the first position, the engine is stopped. The engine is started in the fourth position. In the third position, the tractor's power take-off can be used only during forward movement of the tractor. When the operator selects the second switch position, the power take-off can be used regardless of the direction of movement of the tractor. An additional switch is included in the circuit to isolate the tractor drive from a reverse selection arrangement.
Patent CA-2351930-A1 (CA)
Inventor: KAFRAWY ADEL
IPC: A61M25/06
Filed: 2001-06-27
Abstract: A method and an apparatus is disclosed for forming a one-piece introducer needle having a member portion and a needle by feeding molten steel into a cavity of a mold.
Patent CA-2357817-A1 (CA)
Inventor: LAFLAMME BENOIT
IPC: G01K1/14
Filed: 2001-09-26
Abstract: A device for measuring the temperature of the water inside a water container.  A temperature probe that defines a front end and a rear end has its front end exposed to water inside the water container. A temperature probe mount mounts the temperature probe to the side of the water container and allows access of the front end of the temperature probe to the water inside the water container. A temperature probe insulator fits over the rear end of the temperature probe. The temperature probe insulator attaches to the temperature probe mount and prevents rearward motion of said temperature probe. In a preferred embodiment, the water container is a spa. In a preferred embodiment, the temperature probe insulator is made of a rubbery substance.
Patent CA-2357989-A1 (CA)
Title: Camera reference device and method of making camera reference device
Inventor: CORLEY FERRAND DAVID ERNEST
IPC: G03B17/00
Filed: 2001-09-28
Abstract: This invention provides a reference device for for setting the colour biasing mechanisms on a camera and achieving a consistent colour biasing in different environmental situations, and a method of making the same. The reference device comprises a reflective media having a surface that has had its spectral characteristics analysed and its surface treated with coloured droplets, wherein each of said droplets is less than 5 picolitres in volume, to achieve a degree of desired white neutrality or colour bias of different spectal quality than that which was analyzed as aforesaid. The method for producing a standardized white or colour-biased surface on reflective media for use with a camera with colour balance setting mechanisms, comprises: I) selecting a media with a surface that is suitable for modification to colorimetrically neutral reference surface; ii) analysing the spectral characteristics of the reference surface; treating the surface of the media with coloured droplets, with each of said droplets being less than 5 picolitres in volume to achieve the degree of desired white neutrality or colour bias.
Patent CA-2358102-A1 (CA)
Title: Detecting and monitoring hiv viral infections
Inventor: GRAS-MASSE HELENE
IPC: C12Q1/34
Filed: 1999-12-29
Abstract: The invention concerns a reagent for detecting and monitoring viral infections, caused by the human immunodeficiency virus (HIV) and its uses for detecting human immunodeficiency. Said reaction comprises a mixture consisting of (1) an antigenic peptide coded by the HIV pol gene comprising 60 amino acids, preferably between 20 and 40 amino acids; and (2) a mixture (called mixotope) of convergent combinatorial peptides, derived form said antigenic peptides.
Patent CA-2359051-A1 (CA)
Title: Solderless ceramic igniter having a leadframe attachment
Inventor: COOPER JOHN
IPC: F23Q7/22
Filed: 2000-02-10
Abstract: An electrical connection for a ceramic hot surface element in which the ends of the hot surface element are essentially interference fit within a pair of metallic termination sleeves, and electrical connection to the hot surface element is provided by an active metal braze which is directly chemically bonded to the metallic termination.
Patent CA-2359837-A1 (CA)
Title: Dry cleaning methods and compositions
Inventor: CAUBLE DAVID F
IPC: D06L1/00
Filed: 2000-01-19
Abstract: A method for dry-cleaning articles such as fabrics and clothing in carbon dioxide comprises contacting an article to be cleaned with a liquid dry cleaning composition for a time sufficient to clean the fabric. The liquid d ry- cleaning composition comprises a mixture of carbon dioxide, a surfactant, an d an organic co-solvent. After the contacting step, the article is separated from the liquid dry cleaning composition. The method is preferably carried o ut at ambient temperature. The surfactant is preferably one that does not conta in a CO2-philic group. The organic co-solvent is preferably an alkane and has a  flash point above 140 ~F.
Patent CA-2361230-A1 (CA)
Title: Support for heat exchanger tubes
Inventor: DOSEN TODD G
IPC: F28F9/013
Filed: 2000-01-28
Abstract: A novel individual support (24) for a heat exchanger is disclosed which frictionally engages the outer surface of a tube-and-fin assembly and provides for interlocking of the supports (24). The novel support (24) includes an alignment probe (34) to facilitate installation and to prevent axial movement of the support (24).
Patent CA-2363401-A1 (CA)
Inventor: KISHIMOTO MITSUHARU
IPC: H01M10/50
Filed: 2000-03-27
Abstract: A battery comprising powdered active materials and capable of storing a larg e power, and equipment or device having the battery as part of its structure, wherein a cathode cell (2) in two vessels connected via an ion-passing separator (1) is filled with a cathode's powdered active material and an electrolytic solution (4), an anode cell (3) is filled with an anode's powdered active material and an electrolytic solution (5), and conductive current collectors (6, 7) in contact with the powdered active materials are provided in the two vessels.
Patent CA-2367120-A1 (CA)
Title: Gas mixture for cryogenic applications
Inventor: RYBA ERIC
IPC: C09K5/04
Filed: 2000-03-27
Abstract: An optimum gas mixture formulated from a group of component fluids, for use in a miniature mixed gas refrigeration system. The gas mixture has appropriate components, in appropriate concentrations, to optimize refrigeration power and heat transfer capacity, and to minimize plugging of the Joule-Thomson expansion element. The gas mixture is pressurized by a compressor to a pressure less than 750 psia, and preferably less than 420 psia, for safety reasons, and supplied to a heat exchanger. The high pressure outlet of the heat exchanger is connected to a Joule-Thomson expansion element where the high pressure gas is expanded isenthalpically to a lower temperature at least as low as 183K. This low temperature gas cools a heat transfer element mounted in the distal end of the probe, to cool an external object. Return gas flows back through the heat exchanger to pre-cool the incoming high pressure gas mixture.
Patent CA-2367134-A1 (CA)
Inventor: MUND KONRAD
IPC: H01M8/04007
Filed: 2000-03-09
Abstract: Batterie de cellules électrochimiques dont la performance au démarrage à froid est améliorée, ainsi qu'un procédé pour démarrer une batterie de cellules électrochimiques à froid, où la chaleur de la réaction du gaz oxhydrique dans la cellule électrochimique est utilisée à des fins des chauffage. A cet effet, au moment du démarrage, du gaz de réaction est ajouté simplement de manière dosée dans la chambre de réaction, de sorte que l'électrode de l'unité de cellules électrochimiques fasse office de brûleur catalytique.
Patent CA-2367884-A1 (CA)
Title: Envelope sealing method
Inventor: FALLOS GEORGE
IPC: B65G57/16
Filed: 1990-04-12
Abstract: A method of handling and processing insert-filled envelopes including a step of envelope sealing, the step of envelope sealing characterized by steps of: conveying envelopes through a moistening section, the envelopes having their open flaps pointed substantially vertically downwardly; spraying gummed areas of envelope flaps by water spray nozzle means and thereby moistening the areas while envelopes are conveyed through the moistening section past the water spray nozzle means; deflecting and guiding moistened envelope flaps by a flap closing guide to closed position while the envelopes are being conveyed to a sealing section; and sealing envelope flaps closed in the step of deflecting and guiding while envelopes are conveyed between a conveyor belt and a plurality of resilient sealing rolls.
Patent CA-2368017-A1 (CA)
Inventor: HUANG XIAOJIAN
IPC: A61K35/39
Filed: 2000-04-05
Abstract: The invention provides methods for treating pancreatic dysfunction, particularly diabetes, in mammals using ErbB receptor ligands, such as heregulin, betacellulin, and EGF. Methods of treating such conditions using anti-ErbB receptor agonist antibodies are further provided. The methods of the invention may be performed by direct administration of such therapeutically useful agents to mammals, or alternatively, by exposing certain pancreatic cell types to such agents in vitro and subsequently transplanting the treated cells to a mammal.
Patent CA-2368021-A1 (CA)
Inventor: OUTLAW DWAYNE E
IPC: C23C30/00
Filed: 2000-04-10
Abstract: A method of preparing a surface treated barium sulfate product is disclosed which has improved dispersibility in end use applications such as polymeric formulations. The method includes mixing a silicon-hydride containing polysiloxane, in neat or in aqueous emulsion form, with a quantity of barium sulfate particles and then optionally drying the resultant mixture. The silicon-hydride containing polysiloxane is deposited on and chemically bonded to the surface of the barium sulfate particles.
Patent CA-2370247-A1 (CA)
Inventor: WEBER ASA T
IPC: B01D53/50
Filed: 2000-05-03
Abstract: Cette invention concerne un réacteur, un système et un procédé d'oxydation qui font appel à un générateur à bulles fines pour transférer de l'oxygène à fort débit de manière à transformer sels aqueux en leurs formes oxydées. Un agitateur-mélangeur répartit les fines bulles dans la solution aqueuse. En réagissant avec l'oxygène, le sel réduit s'oxyde. On pourra éventuellement recourir à une rondelle pour empêcher le dépôt de solides tels qu'un sel sulfaté précipité ou du tartre de se déposer sur le générateur de fines bulles et faciliter le retrait de tels solides qui se sont formés sur le générateur. Le réacteur, système et procédé d'oxydation peuvent être utilisés en continu ou en discontinu.