baber/WOPTO huggingface dataset:
Patent CA-2468136-A1 (CA)
Title: Thermoacoustic electric power generation
Inventor: VAN DER SPEK ALEXANDER MICHAEL
IPC: E21B47/00
Filed: 2002-11-26
Abstract: A thermoacoustic Power generator (3) for generating electricity within or in the vicinity of a gas transportation conduit (2), such as a production tubin g in a gas production well, comprises an acoustic resonance cavity (7) having an inlet (8) formed by an orifice in the wall of the conduit (2) or of equipmen t arranged within the conduit (2) to create a standing acoustic wave in the resonance cavity (7) in response to the gas flow in the conduit (2), and a permeable body (9) in the resonance cavity (7) in which body cold and/or hot spots are formed as a result of adiabatic expansion or compression. A thermoelectric device 10, such as a Peltier element, is connected to said co ld and/or hot spots formed in the permeable body (9) to generate electrical Pow er in response to the resulting temperature decrease or increase of the permeab le body (9), which may exceed 50 ~C.
Patent CA-2470422-A1 (CA)
Title: Appareil et methode pour l'exponentiation d'un systeme cryptographique rsa
Inventor: ANTIPA ADRIAN
IPC: H04L9/32
Filed: 2004-06-09
Abstract: Une méthode de calcul d'un exposant d'un message m dans un système cryptographique RSA ayant une clé publique d, une clé publique a et des paramètres système p, q où p et q sont premiers et ed = 1 mod (p-1) (q-1). La méthode comprend les étapes suivantes : obtenir une valeur r et mettre en exposant la valeur r à la puissance e pour obtenir un exposant r e mod p, en combinant ledit exposant r e avec le message m pour obtenir une valeur combinée r e m et mod p; sélectionner une valeur s et obtenir une différence (d-s), en mettant en exposant la valeur combinée de ladite différence pour obtenir un exposant intermédiaire (r e m) d-s, en multipliant la valeur intermédiaire par une valeur m s pour obtenir une valeur résultante équivalant à r l-es m d et multiplier la valeur résultante par une valeur correspondant à r l- es pour obtenir un exposant correspondant à m d mod p.
Patent CA-2473001-A1 (CA)
Title: Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle
Inventor: KRAMER REINER
IPC: F04C15/00
Filed: 2004-07-06
Abstract: The invention relates to a stator for an eccentric screw pump or an eccentric worm motor, including an outer tube that is provided with a lining of rubber or a rubber-like material and has a hollow space or cavity, in the shape of a double or multiple spiral, for accommodating a rigid rotor that is also in the form of a spiral, whereby the stator has one spiral more than does the motor. So that the stator also remains functional under conditions where the fixed connection between the lining and the outer tube could be destroyed, e.g. due to chemical influences or high temperatures, the invention proposes disposing two inner tubes that have apertures in the lining.
Patent CA-2475004-A1 (CA)
Title: Method of acidizing a subterranean formation with diverting foam or fluid
Inventor: CAWIEZEL KAY C
IPC: E21B43/16
Filed: 2004-07-16
Abstract: ABSTRACT OF THE DISCLOSURE      A method of acidizing a subterranean formation with a diverting agent composed of a gelled or thickened viscoelastic foam or fluid generated from (i.) an amidoamine oxide gelling agent and (ii.) an acid or foam, water and/or brine.  The gelled or thickened foam or fluid may be generated in-situ or introduced directly into the formation by mixing of the amidoamine oxide gelling agent and acid or foam, water and/or brine. As the acid spends, the acidizing fluid thickens. When the acid is further spent, the fluid viscosity declines eventually returning to a low viscosity state, allowing for easy cleanup. The process allows for selective acidizing of less permeable zones of the formation and more uniform stimulation of the hydrocarbon bearing formation.
Patent CA-2479155-A1 (CA)
Title: Bin lifting and weigh scale arrangement
Inventor: MATHEWS MICHAEL J
IPC: B65F3/02
Filed: 2004-08-26
Abstract: The present invention is directed at a bin lifting and weighing assembly comprising a bin lifting mechanism having means for engaging and lifting a bin; means for mounting the bin lifting mechanism against a structure; a load cell, mounted against the structure; for measuring a weight of the bins; wherein the means for mounting the bin lifting mechanism allows only a single degree of freedom such that the load cell remains in parallel with the structure.
Patent CA-2480225-A1 (CA)
Title: Methods for treating rosacea with pyridones
Inventor: GANS EUGENE H
IPC: A61K31/44
Filed: 2003-04-04
Abstract: The present invention is a method of treating rosacea and a method of preventing recurrences of rosacea manifestations by applying a composition comprising one or more 1-hydroxy-2-pyridones in a dermatologically acceptabl e carrier.
Patent CA-2483008-A1 (CA)
Title: Filter cartridge assembly with brine seal and retaining ring
Inventor: GUNDRUM ROBERT R
IPC: B01D35/30
Filed: 2003-04-23
Abstract: A filter cartridge assembly intended for replaceable installation in a demountable cartridge housing includes in one embodiment, a retaining ring (30) that is attached to the product water tube (20) of the filter cartridge (11), is inserted with the cartridge into the housing, and is locked to the housing such that, upon subsequent removal of the housing to change the cartridge, the cartridge will be forced from sealing engagement with the end cap header and caused to remain in the housing until the housing has been removed. The integral retaining ring and cartridge are then simply unclocked and removed from the housing for replacement. Brine ring embodiments (31, 110, 120) that are welded to the housing or attached to the housing with a snap-in connection are also disclosed.
Patent CA-2485093-A1 (CA)
Title: Substituted imidazole derivatives: gabaa receptor ligands
Inventor: GUSTAVSON LINDA M
IPC: C07D233/64
Filed: 2003-05-02
Abstract: Substituted imidazole derivatives that bind to GABAA receptors are provided.  Such compounds may be used to modulate ligand binding to GABAA receptors in vivo or in vitro, and are particularly useful in the treatment of a variety of central nervous system (CNS) disorders in humans, domesticated companion animals and livestock animals. Compounds provided herein may be administered alone or in combination with one or more other CNS agents to potentiate the effects of the other CNS agent(s). Pharmaceutical compositions and methods for treating such disorders are provided, as are methods for using such ligands for detecting GABAA receptors (e.g., receptor localization studies). (Formula I)
Patent CA-2485155-A1 (CA)
Title: Dust collecting apparatus for a vacuum cleaner
Inventor: HAN JUNG-GYUN
IPC: B01D45/16
Filed: 2004-10-14
Abstract: A dust collecting apparatus for a vacuum cleaner has a first cyclone dust collecting part and a second cyclone dust collecting part that are arranged substantially parallel with respect to an air inflow opening of a vacuum cleaner main body, and may be mirror images of each other. The first cyclone dust collecting part comprises a first suction opening and a first discharge opening, and the second cyclone dust collecting part comprises a second suction opening and a second discharge opening. The first and second suction openings are connected with the air inflow opening of the vacuum cleaner main body, and the first and second discharge openings are connected with a vacuum suction chamber of the vacuum cleaner main body. Accordingly, a dust collecting apparatus for a vacuum cleaner can be realized, having an advanced suction capability and dust separation capability.
Patent CA-2485305-A1 (CA)
Inventor: NAKANO TAMAKI
IPC: C08F24/00
Filed: 2003-05-07
Abstract: This invention relates to optically active high-molecular-weight compounds represented by the structural formula and stationary-phase materials containing the same.  The high-molecular-weight compounds exhibit optical activity by virtue of their stacking helical structure wherein the aromatic groups are aligned in a twisted arrangement, thus being useful as optically active stationary phases for HPLC or polarized- light absorbers.     (see formula 1) In the formula 1 Ar in the formula is an aromatic ring, R1, and R2 are hydrogen atoms or organic groups, R3 and R4 are substituents, n is an integer of 2 or more, X is a group selected from among -(CH2)m-, an aromatic group, a vinyl group, a hetero atom and a group containing a hetero atom, and m is an integer of 0 or more. R3 and R4 may be introduced 2-4 times respectively, wherein these may be identical or different, and R is a hydrogen atom, a hetero atom or an organic group.
Patent CA-2488500-A1 (CA)
Title: Substituted porphyrins
Inventor: FRIDOVICH IRWIN
IPC: C07D487/22
Filed: 2003-06-09
Abstract: A series of ortho isomers of meso tetrakis N-alkylpyridylporphyrins (alkyl being methyl, ethyl, n-propyl, n-butyl, n-hexyl, and n-octyl) and their Mn(III) complexes were synthesized and characterized by elemental analysis, uv/vis spectroscopy, electrospray ionization mass spectrometry and electrochemistry. An increase in the number of carbon atoms in the alkyl chains from 1 to 8 is accompanied by an increase in: (a) lipophilicity measured by the chromatographic retention factor, Rf; (b) metal-centered redox potential, E1/2 from +220 to +367 mV vs NHE, and (c) proton dissociation constant, pKa2 from 10.9 to 13.2. A linear correlation was found between E1/2 and Rf of the Mn(III) porphyrins and between the pKa2 and Rf of the metal-free compounds. As the porphyrins become increasingly more lipophilic, the decrease in hydration disfavors the separation of charges, while enhancing the electron-withdrawing effect of the positively charged pyridyl nitrogen atoms.  Consequently, the E1/2 increases linearly with the increase in pKa2, a trend in porphyrin basicity opposite from the one we previously reported for other water-soluble Mn(III) porphyrins. All of these Mn(III) porphyrins are potent catalysts for superoxide dismutation (disproportionation). Despite the favorable increase of E1/2 with the increase in chain length, the catalytic rate constant decreases from methyl (log kcat = 7.79) to n-butyl, and then increases such that the n-octyl is as potent an SOD mimic as are the methyl and ethyl compounds. The observed behavior originates from an interplay of hydration and steric effects that modulate electronic effects.
Patent CA-2488892-A1 (CA)
Title: Assouplissant en dose unique ameliore pour cycle de lavage
Inventor: JACQUES ALAIN
IPC: C11D3/12
Filed: 2003-06-13
Abstract: L'invention porte sur un assouplissant en dose unique de tissus pour cycle de lavage en lave-linge. Une telle dose consiste en une composition granulaire compactée dont l'élément assouplissant est une argile en quantité suffisante pour former une dose unique assurant un assouplissement ou un conditionnement efficace pendant le cycle de lavage.
Patent CA-2489600-A1 (CA)
Inventor: WATANABE TOKUTOMI
IPC: A23L29/00
Filed: 2003-06-17
Abstract: La présente invention se rapporte à un agent de tenue de mousse qui possède des caractéristiques de tenue de mousse suffisantes et s'avère satisfaisant d'un point de vue de la sécurité, du goût, de l'odorat, etc., caractéristiques exigées des aliments et des boissons gazeuses contenant cet agent de tenue de mousse. Plus spécifiquement, l'invention se rapporte à un agent de tenue de mousse pour boissons gazeuses qui comprend un extrait de feuilles de thé que l'on obtient en préparant un thé (par exemple, du thé noir, du thé vert, du thé oolong, du thé <i>Gyno stemma pentaphyllum</i>, du Maté, du thé Pu-erh, du thé d'orge, du thé <i>Coix Ma-Yuen</i>, du thé de riz complet, du thé <i>Houttuyunia cordata</i>, ou analogue) de manière classique et en extrayant les composants riches en catéchine de ce thé au moyen d'eau et/ou d'un solvant tel que l'éthanol. L'invention se rapporte également à des boissons gazeuses qui s'avèrent présenter d'excellentes caractéristiques de moussabilité et de tenue de mousse et qui possèdent une densité de mousse élevée et une texture de mousse dense, lesdites boissons se caractérisant en ce qu'elles contiennent l'agent de tenue de mousse décrit ci-dessus.
Patent CA-2492363-A1 (CA)
Title: Membrane-reinforced implants
Inventor: MCNEILL ROBERT
IPC: A61F2/08
Filed: 2003-07-22
Abstract: An implant that contains a membrane and a polymeric matrix cover ed by the membrane. Both the matrix and the membrane are biocompatible and bioresorbable. Also disclosed is a method of preparing such an implant.</SDO AB>
Patent CA-2493668-A1 (CA)
Title: Balle de golf
Inventor: MATRONI GARY
IPC: C08L75/06
Filed: 2003-07-25
Abstract: L'invention concerne un composant de balle de golf, notamment une enveloppe de balle de golf, formé à partir d'un polyuréthanne, d'une polyurée ou d'un polyuréthanne/polyurée thermoplastique dont l'indice de fluage est amélioré. L'enveloppe peut être relativement mince (par exemple, 0,075 pouce ou moins, mieux 0,050 pouce ou moins, de préférence 0,040 pouce ou moins, plus préférablement moins de 0,030 pouce). L'invention concerne en outre une opération dans laquelle la couche extérieure est exposée à une solution d'isocyanate afin d'améliorer certaines propriétés physiques de la balle de golf résultante.
Patent CA-2494348-A1 (CA)
Inventor: TEICHBERG VIVIAN I
IPC: A61K38/51
Filed: 2003-07-31
Abstract: A method of reducing extracellular brain glutamate levels. The method comprises administering to a subject in need thereof a therapeutically effective amount of an agent capable of reducing blood glutamate levels thereby reducing extracellular brain glutamate levels.
Patent CA-2494956-A1 (CA)
Inventor: KANDHADAI ANANTHAPADMANABHAN A
IPC: G10L19/12
Filed: 2003-08-08
Abstract: Methods and apparatus are presented for determining the type of acoustic signal and the type of frequency spectrum exhibited by the acoustic signal in order to selectively delete parameter information before vector quantization.  (430) The bits that would otherwise be allocated to the deleted parameters can then be re-allocated to the quantization of the remaining parameters, which results in an improvement of the perceptual quality of the synthesized acoustic signal. (450) Alternatively, the bits that would have been allocated to the deleted parameters are dropped, resulting in an overall bit-rate reduction (440).
Patent CA-2496599-A1 (CA)
Title: Adaptive drain and purge system for a dishwasher
Inventor: JOHNSON THOMAS M
IPC: A47L15/00
Filed: 2005-02-10
Abstract: A dishwasher operates to sense the need for a drain or purge operation based on dynamic characteristics of a respective washing operation such that an adaptive system is defined. In accordance with the invention, washing fluid used to spray clean kitchenware being washed is filtered and soil from the kitchenware is collected. When the filtering system becomes clogged, a flow signal is established to indicate the need for at least a partial drain operation. Most preferably, this arrangement is used in combination with signals from a turbidity sensor, as well as pump motor current signals, to provide an comprehensive, dynamically adaptive control system.
Patent CA-2498523-A1 (CA)
Title: Human cd3-specific antibody with immunosuppressive properties
Inventor: LE GALL FABRICE
IPC: C12N15/13
Filed: 2003-09-10
Abstract: Described are mono- and multivalent scFv-antibodies comprising the binding sites specific for the human T cell marker CD3. These antibodies are strongl y immunosuppressive and do not cause a significant release of cytokines. Furthermore, polynucleotides encoding said antibodies are described as well as vectors comprising said polynucleotides, host cells transformed therewith an d their use in the production of said antibodies. Pharmaceutical compositions containing any of the above mentioned polynucleotides, antibodies or vectors are useful for immunotherapy, preferably against acute transplant rejections .
Patent CA-2499598-A1 (CA)
Title: Quadrature amplitude modulation of optical carriers
Inventor: LEVEN ANDREAS
IPC: G02F1/17
Filed: 2005-03-07
Abstract: An apparatus includes an optical splitter, an optical combiner, first and second optical paths, and a digital signal generator. The optical splitter has an input port and first and second output ports. The optical combiner has first and second input ports and an output port. The first optical path couples the first output port of the splitter to the first input port of the combiner. The second optical path couples the second output port of the splitter to the second input port of the combiner. Each optical path includes an electro-optical phase shifter, and one of the optical paths includes an electro-optical attenuator. The digital signal generator is configured to apply binary-valued voltage signals to control inputs of the phase shifters and the attenuator.
Patent CA-2501218-A1 (CA)
Inventor: SANDIG VOLKER
IPC: C12P21/00
Filed: 2003-10-06
Abstract: The present invention relates to ubiquitous/universal processes for establishing cells capable of stable high yield expression of a recombinant gene with human glycosylation pattern, and for establishing stable universal precursor cells available for insertion of arbitrary target genes. The invention further relates to the cells obtainable by said processes.
Patent CA-2502781-A1 (CA)
Title: Aneurysm treatment devices and methods
Inventor: COSTANTINO PETER D
IPC: A61F2/06
Filed: 2003-10-23
Abstract: An aneurysm treatment device for in situ treatment of aneurysms comprising a collapsible member having a first shape wherein the first shape is an expand ed geometric configuration, and a second shape, wherein the second shape is a collapsed configuration that is loadable into a catheter. The aneurysm treatment device is capable of returning to the first shape in the lumen of an aneurysm. Some aneurysm treatment devices comprise a spreadable portion and a projecting portion integral with the spreadable portion. The spreadable portion is capable of resting against and supporting an inner wall of an aneurysm, the projecting portion is capable of being gripped by a surgeon to facilitate insertion and positioning of the device. Other devices have relatively simple shapes and can be implanted to a site as a plurality. Treatment methods are also disclosed.
Patent CA-2506502-A1 (CA)
Title: Laundry dryer with novel exhaust pipe installation structure
Inventor: KIM WON TAE
IPC: F16L3/24
Filed: 2005-05-06
Abstract: A clothing dryer including: a housing; an exhaust pipe; a first fixing bracket disposed at the exhaust pipe; and a second fixing bracket disposed at the bottom of the housing, the~ first fixing bracket being fitable in the second fixing bracket. The exhaust pipe is fixed without using an additional fixing member, whereby assembly and disassembly of the clothing dryer are accomplished.
Patent CA-2511036-A1 (CA)
Title: Sunscreen composition
Inventor: BRILLOUET ANNE SOPHIE
IPC: A61K8/64
Filed: 2005-06-28
Abstract: The present invention relates to a sunscreen product having a rubbing resistance for at least 5 hours after a single application to mammalian skin or hair and an SPF of at least about 2.
Patent CA-2511581-A1 (CA)
Title: Device for controlling films pulling in a device for producing multilayer assemblies
Inventor: LE GAL GUY
IPC: H01G13/02
Filed: 2003-12-19
Abstract: The invention relates to a device for producing storage energy assemblies comprising means for pulling a multilayer film and means (610) for winding said multilayer firm. Said pulling means comprise at least one pair of pulling means i.e. a master means and slave means respectively (532, 534 and 400, 400; 400, 410 and 262, 264). The master pulling means (532, 534, 400, 400) is arranged after the slave pulling means (400, 410, 262, 264) on the multilayer film track. Control means for the slave pulling means (400, 410, 262, 264) are placed on the master pulling means (532, 534, 400, 400).
Patent CA-2513564-A1 (CA)
Title: Non-surgical incontinence treatment system and method
Inventor: MERRICK DANIEL D
IPC: A61B/
Filed: 2004-01-15
Abstract: Devices (10), systems, and methods can treat incontinence by heating between about 100 and about 800 cubic millimeters of endopelvic fascia for sufficient time to effect substantial collagenous tissue shrinkage. A probe body may directly engage the endopelvic fascia, or may be separated from the endopelvic fascia, or may be separated form the endopelvic fascia heating through (for example) the vaginal wall. In either case, tissue-penetrating electrodes (16) may be inserted from the probe body so as to heat the endopelvic fascia.
Patent CA-2514708-A1 (CA)
Title: Double explosively-formed ring (defr) warhead
Inventor: RITMAN ZEEV
IPC: F42B1/02
Filed: 2004-01-29
Abstract: A warhead configuration for forming a hole through a wall of a target, the warhead configuration comprising a charge of explosive material and a liner.  The charge has an axis and a front surface. The front surface includes two annular front surface portions, an inner and an outer annular portion, circumscribing the axis. Each of the annular front surface portions is configured so as to exhibit a concave profile as viewed in a cross-section through the charge parallel to the axis. The liner includes a first liner disposed adjacent to the inner annular portion and a second liner disposed adjacent to the outer annular portion such that, when the charge is detonated, material from the first liner is formed into a first expanding explosively formed ring and material from the second liner is formed into a second explosively formed ring.
Patent CA-2514798-A1 (CA)
Title: Bleaching and brightness stabilization of lignocellulosic materials with water-soluble phosphines or phosphonium compounds
Inventor: HU THOMAS QIUXIONG
IPC: D21H21/32
Filed: 2004-02-03
Abstract: A method for the bleaching and brightness stabilization of lignocellulosic materials is described. The method involves the treatment of lignocellulosic materials, in particular, (a) wood pulps such as thermomechanical pulps (TMP) and chemithermomechanical pulps (CTMP), and (b) papers made from wood pulps, with a water-soluble phosphine or a phosphonium compound preferably containing at least one phosphorus hydroxyalkyl bond/linkage, for example a phosphorus hydroxymethyl bond/linkage (P-CH2OH). One example of such a water-soluble phosphine is the commercially available, tris(hydroxymethyl)phosphine (THP), P(CH2OH)3. One example of such a phosphonium compound is the commercially available, tetrakis(hydroxymethyl)phosphonium chloride (THPC), [P(CH2OH)4]Cl.
Patent CA-2519472-A1 (CA)
Title: Electrical connector having connector position assurance member
Inventor: LYONS WILLIAM R
IPC: H01R13/639
Filed: 2004-03-08
Abstract: An electrical connector including a housing, electrical contacts and a connector position assurance (CPA) member. The housing has deflectable cantilevered mating connector latch arms. The latch arms are movable between a latched position and an unlatched position. The CPA member is movably mounted to the housing between an open position and a closed position. The CPA member includes a first section and a deflectable second section. The second section includes a cam surface for contacting a housing of the mating electrical connector and being deflected as the CPA member is moved from the open position to the closed position and an interference portion adapted to contact the latch arms when the latch arms are not in their latched position such that the CPA member is blocked from reaching the closed position unless the latch arms are in their latched positions.
Patent CA-2523431-A1 (CA)
Title: Piperazine derivatives and their use for the treatment of neurological and psychiatric diseases
Inventor: RANA KISHORE KALIDAS
IPC: C07D401/14
Filed: 2004-04-21
Abstract: The present invention relates to novel piperidine carbonyl piperazine derivatives having pharmacological activity, processes for their preparation, to compositions containing them and to their use in the treatment of neurological and psychiatric disorders.