baber/WOPTO huggingface dataset:
Patent CA-2300430-A1 (CA)
Title: Apparatus and device for use therein and method for ablation of tissue
Inventor: MULLER PETER H
IPC: A61B18/12
Filed: 1998-08-12
Abstract: The present invention is a device for the ablation of tissue for use with the human hand, a radio frequency power supply, a controller providing a source of radio frequency energy, and a control for controlling the application of radio frequency energy to the device. The device comprises a handle (16) sized so that it is adapted to be grasped by the human hand, has proximal, and distal extremities. A needle (26) formed of a conducting material has proximal, and distal extremities. The proximal extremity of the needle is mounted on the distal extremity of the handle so that it is insulated from the handle. Conductors (36) are carried by the handle, are connected to the needle, extend from the handle, are coupled to the radio frequency power supply, and controller (13) for supplying radio frequency energy to the needle. A temperature sensor (46) is carried by the handle, is adapted to be coupled to the radio frequency power supply, and controller for sensing the application of the radio frequency energy to the tissue for controlling the application of radio frequency energy to the needle.
Patent CA-2300539-A1 (CA)
Title: Tamper evident buckle
Inventor: BORTZ GARY
IPC: G09F3/03
Filed: 2000-03-07
Abstract: A tamper evident buckle including a first part adapted to be attached to one end of an elongate strap, a second part adapted to be attached to the other end of the strap, the first and second parts including respective engagement means for releasably engaging the two parts together, an enclosure movable between a first position wherein the first and second parts are freely engageable and disengageable and a second position wherein the enclosure substantially encloses the engaged together first and second parts, and a seal including a main body, comprised of at least one component, and at least one deflectable member, wherein the seal is adapted to engage the enclosure in the second operative position and to prevent movement from the second operative position to the first operative position unless said seal is broken. The buckle may be used to secure the contents of a container, such as a cash box, against unauthorised tampering.
Patent CA-2302256-A1 (CA)
Title: Predistortion linearizer circuit
Inventor: KANGASLAHTI PEKKA
IPC: H04B1/62
Filed: 1998-08-24
Abstract: A predistortion linearizer circuit comprising an amplitude distorting part (AM/AM) and a phase distorting part (AM/PM). At least the phase distorting part (AM/PM) comprises broadband biasing means (51) and a non-linear transmission line (L51/D51 to L55/D55) responsive to them. The biasing means (51) are arranged to bias the non-linear transmission line (L51/D51 to L55/D55) to a substantially phase distorting area. The characteristics of the circuit can be changed by adjusting a biasing voltage (VB1) or by switching some of the diodes (D54, D55) inactive by activation signals (VA1, VA2). The amplitude distorting part (AM/AM) and the phase distorting part (AM/PM) can be similar in structure, but the diodes (D51 to D55) are partly forward-biased, whereby the losses caused by them decrease the amplitude of the signal.
Patent CA-2302728-A1 (CA)
Inventor: SPENCER DUDLEY W C
IPC: B29C65/02
Filed: 2000-03-28
Abstract: A wafer for use in the selective connecting and disconnecting of plastic tubes incorporates a fuse in an aperture. The fuse is made of a three layer laminate having light transmission characteristics which change after the wafer and its laminate have been heated. The three layers comprise two outer transparent layers and an intermediate layer having limited light transmission characteristics.      When the wafer is heated the intermediate layer shrinks thereby changing the light transmission characteristics by providing a path for light to pass through the laminate without passing through the intermediate layer.
Patent CA-2303803-A1 (CA)
Title: Fetal oximetry system and sensor
Inventor: JOHNSON ROBERT M
IPC: A61B5/00
Filed: 1998-06-15
Abstract: This invention is an optical measuring device having multiple optical paths between one or more light emitters, one or more light detectors, and/or providing at least two sets of wavelength of light along at least one path, with a final measurement being produced as a combination of measurements of the sets of wavelengths of light taken along one or more of the optical paths.  Features that contribute to increased safety, and ease of use include a receiving cavity in a proximal end of an insertion rod (7) that holds a free end of a circuit connector (9) to keep it from becoming entangled or snagged;  a mechanism to keep the sensor (11) within an introducer tube (5) during storage and insertion, and to expose a portion of the sensor when the sensor is applied to the unborn baby; a tab (13) on the insertion rod to prevent the circuit connector from becoming tangled or snagged within the introducer tube;  a rotating feature whereby if a torque applied on the sensor exceeds a first predetermined amount the sensor rotates; a disengaging feature whereby the sensor detaches from insertion rod if a pull off force exceeds a second predetermined amount; a circuit connector (9) that includes at least one of the following features: a stiffening member provided at the proximal end to minimize bending, a shielding layer, and at least one slit to increase the flexibility of the circuit connector; and an interface that includes an identification element that is detected by an external circuit only if the circuit connector is connected to the interface. The present invention also pertains to a method of manufacturing a needle that is used in the sensor.
Patent CA-2304136-A1 (CA)
Title: Composition and pharmaceutical preparation containing same for the treatment of herpes and related viral infections
Inventor: LEE SPENCER H S
IPC: C08B37/00
Filed: 1998-09-23
Abstract: In accordance with the present invention, a novel composition has been discovered by extraction and purification from the spikes of Prunella vulgaris. Invention compositions are effective agents for treatment of the cytopathogenic effects of an enveloped virus in mammals. In accordance with another embodiment of the present invention, there are provided methods for the treatment of the cytopathogenic effects of an enveloped virus and related indications in mammals, employing the above-described novel compositions as the active agent. In accordance with yet another embodiment of the present invention, it has been discovered that invention compositions are effective agents for the treatment of the cytopathogenic effects of an enveloped virus in mammals exposed to immunosuppressive regimens. In accordance with still another embodiment of the present invention, it has been discovered that invention compositions provide an effective agent for protecting mammals from reactivated viral infection during or following treatment with chemotherapeutic agents. In accordance with a still further embodiment of the present invention, there are provided methods for preparing novel extracts of Prunella vulgaris having antiviral action and the formulations containing said extracts. In accordance with a still further embodiment of the present invention, there are provided methods for purification and characterization of the active fraction from Prunella vulgaris useful for treating the cytopathogenic effects of an enveloped virus in a mammal. In accordance with a still further embodiment of the present invention, it has been discovered that invention compositions are effective agents for the prophylaxis and therapy in mammals of diseases caused by enveloped viruses.
Patent CA-2305071-A1 (CA)
Title: High intensity ion source
Inventor: JOLLIFFE CHARLES
IPC: G01N27/26
Filed: 2000-04-12
Abstract: A high intensity ion source for a mass spectrometer is provided having system dimensions and parameters which cause the Taylor cone of a liquid charge stream to pass through an aperture in an lens into a low pressure chamber without substantially desolvating. A capillary tube having an outlet diameter on the order of 50 micrometers is located in an ion source chamber which is maintained at close to atmospheric pressure. The outlet of the capillary tube is positioned at a distance on the order of 250 micrometers from the aperture of the lens. The low pressure chamber can be maintained at a pressure on the order of 13 pascals. With a suitable applied field, a Taylor cone ion stream is formed and passes through the aperture in the lens into a low pressure chamber without substantially desolvating. Substantial desolvation of the liquid charge stream can be later accomplished through the application of heating techniques within the low pressure chamber.
Patent CA-2306772-A1 (CA)
Inventor: POPE LAURA
IPC: A61K8/34
Filed: 1997-12-05
Abstract: A method for treating a benign or malignant hyperprofilerative skin lesion, comprising topically administering a C18 to C26 aliphatic alcohol to the skin lesion in a pharmaceutically acceptable carrier.
Patent CA-2308988-A1 (CA)
Inventor: PASCAL THIERRY
IPC: H01M4/131
Filed: 2000-05-18
Abstract: L'invention concerne un procédé de modification chimique d'un polymère fluoré de départ contenant des motifs de formule générale (I): dans laquelle X et X' représentent indépendamment l'un de l'autre un atome d'hydrogène, un atome d'halogène ou un groupement alkyl perhalogéné, dans lequel on soumet le polymère fluoré de départ à une déshydrofluoration partielle par une base pour obtenir un fluoropolymère partiellement déshydrofluoré. Le procédé selon l'invention est caractérisé en ce que l'on fait réagir ensuite le fluoropolymère partiellement déshydrofluoré avec un agent oxydant pour obtenir un polymère fluoré modifié. Le polymère fluoré modifié ainsi obtenu a des propriétés d'adhésion très élevées, notamment à des substrats métalliques ou polymériques. Il constitue un liant dans la fabrication d'électrodes de batteries lithium-ion.
Patent CA-2311200-A1 (CA)
Title: Carbon dioxide recovery from an oxygen containing mixture
Inventor: CHAKRAVARTI SHRIKAR
IPC: C01B32/50
Filed: 2000-06-09
Abstract: A system for recovering absorbate such as carbon dioxide from an oxygen containing mixture wherein carbon dioxide is concentrated in an alkanolamine containing absorption fluid, oxygen is separated from the absorption fluid, and carbon dioxide is steam stripped from the absorption fluid and recovered.
Patent CA-2314527-A1 (CA)
Title: Procede de preparation de support de catalyseur pour la polymerisation des .alpha.-olefines, et support ainsi obtenu
Inventor: LACOMBE JEAN-LOUP
IPC: C08F4/651
Filed: 2000-07-26
Abstract: L'invention a pour objet un procédé de préparation de support de catalyse ur pour la polymérisation des .alpha.-oléfines comprenant les étapes de (i) réaction, en présence d'un premier donneur d'électron, d'un composé organique chloré et d'un mélange préalable d'un alkylmagnésien et d'un composé organique de l'alumini um et éventuellement d'un second donneur d'électron; et (ii) l'activation du produ it de l'étape (i) en suspension dans un liquide inerte par un donneur d'électron d'activation.  L'invention a aussi pour objet le support susceptible d'être obtenu par ce procédé. un catalyseur pour la polymérisation d'.alpha.-oléfines comprenant le support de catalyseur selon l'invention et un halogénure de métal de transition du grou pe IV.  L'invention a encore pour objet un procédé de polymérisation d'.alpha.- oléfines comprenant la misa en contact de l'.alpha.-oléfine avec un catalyseur selon l'invention.  L'invention s'applique particulièrement à la polymérisation du propylèn e.
Patent CA-2315223-A1 (CA)
Inventor: PINKOS ROLF
IPC: C08K5/12
Filed: 1998-12-18
Abstract: L'invention concerne un procédé permettant d'hydrogéner un acide polycarboxylique de benzène ou un de ses dérivés ou un mélange d'au moins deux de ses dérivés avec un gaz contenant de l'hydrogène, en présence d'un catalyseur qui comprend comme métal actif du ruthénium seul ou conjointement avec au moins un métal du Ier, du VIIème ou du VIIIème groupe secondaire de la classification périodique des éléments, appliqué sur un support présentant des macropores. L'invention concerne en outre de nouveaux produits d'hydrogénation obtenus par hydrogénation de (dérivés) d'acide polycarboxylique de benzène, ainsi que leur utilisation comme plastifiants dans des matières plastiques.
Patent CA-2316778-A1 (CA)
Inventor: SHERMAN JAMES J
IPC: H01R13/73
Filed: 2000-08-28
Abstract: The threaded wallplate mounting lobes of a mounting strap are eliminated and replaced by a retainer made of thin, hard brass sheet metal. The retainer has a body portion fixed to the mounting strap at each of its two ends and an apertured lobe which takes the place of the lobes of the mounting strap. By contouring the shape of the apertures in the retainers, mounting fasteners may be forced through such apertures to assemble a wallplate to a mounting strap without the usual mating of fastener and threaded mounting lobes.
Patent CA-2316843-A1 (CA)
Inventor: TSALIAH YOSEPH
IPC: G01F1/72
Filed: 1998-12-28
Abstract: L'invention porte sur un transducteur piézo-électrique miniaturisé comprenant : (a) un élément cellulaire comportant une cavité; (b) une couche souple piézo-électrique (2) solidaire de la cellule, présentant une surface extérieure et une surface intérieure, la couche piézoélectrique présentant des dimensions lui permettant de fluctuer à sa fréquence de résonance sous l'effet d'une onde acoustique; et (c) une première électrode (8) montée à la surface extérieure de la couche piézo-électrique et une deuxième électrode (6) montée à la surface intérieure de la couche piézo-électrique. L'une au moins des électrodes peut être spécifiquement taillée pour fournir un maximum d'intensité, de tension ou de puissance. La forme préférée des électrodes consiste en deux noyaux reliés par un élément de liaison. Le transducteur peut fonctionner en émetteur; les électrodes sont alors reliées électriquement à un circuit électrique comportant un commutateur modulant l'onde acoustique réfléchie en modifiant sélectivement l'impédance mécanique de la couche piézo-électrique en fonction de la fréquence d'un signal électrique émis par un élément électronique tel qu'un détecteur. Il est possible de munir la couche piézo-électrique et le circuit d'une troisième et d'une quatrième électrodes pour que le commutateur assure alternativement une connexion parallèle ou antiparallèle des électrodes permettant de modifier sélectivement l'impédance mécanique de la couche piézo-électrique.
Patent CA-2324437-A1 (CA)
Title: Tole d'acier dotee d'un revetement comprenant une couche principale d'alliage zinc-chrome, dont la phase preponderante presente une structure .delta. et/ou .zeta.
Inventor: SCOTT COLIN
IPC: C23C14/56
Filed: 2000-10-25
Abstract: Ledit revêtement comprend également une couche sous-jacente d'adhérence en alliage zinc-chrome, intercalée entre l'acier de la tôle et ladite couche principale, qui présente: - une structure cristalline cubique centré de type .GAMMA., - une teneur pondérale en chrome suffisamment élevée pour obtenir ladite structure .GAMMA., - une jonction au moins partielle d'épitaxie avec ledit acier.  On obtient alors une amélioration très sensible de l'adhérence du revêtement.  Procédé et dispositif avantageux pour fabriquer la tôle.
Patent CA-2325003-A1 (CA)
Title: Packaging method and apparatus
Inventor: DEBOY LEE SIMON
IPC: B65B37/14
Filed: 1999-03-26
Abstract: A product packaging method and system where discrete product charges are dispensed from a bulk supply and are individually bagged. The charge is dispensed from the bulk supply (11) into a receptacle (20) where it is retained under pressure prior to dispensing into a bag in a bagging station (14). The receptacle containing the product charge is sealed and pressurised above ambient pressure by the introduction of a gas including nitrogen.
Patent CA-2325673-A1 (CA)
Title: Light emitting display on a portable communication device for incoming phone calls
Inventor: CHONG SZE-HUEN
IPC: H04M19/04
Filed: 2000-11-10
Abstract: A light emitting display on a mobile phone for incoming phone calls comprises an electro luminescent lamp, and a control circuit to mount on the battery of the mobile phone. The control circuit further comprises a signal receive unit, an automatic control unit, a reverse changed voltage rising unit, and switching drive unit.
Patent CA-2329176-A1 (CA)
Inventor: SVENSSON TOMAS
IPC: G10L19/16
Filed: 1999-04-28
Abstract: A decoder improves delayed packet concealment in a packet network by using two decoder sections. A first decoder section (30) bases its decoding during the concealment phase on erroneous filter states and a set of speech parameters, whereas a second decoder section bases its decoding on saved (36) and updated filter states and the same speech parameters. The outputs of the two decoder sections are thereafter combined (34) to form the final speech signal. This decoding strategy produces a speech signal with smooth transitions from delayed to non-delayed packets and uses information from the most recent packets for speech generation.
Patent CA-2331707-A1 (CA)
Inventor: VIEREGGE JOACHIM
IPC: B22F9/22
Filed: 1999-05-05
Abstract: Metal powder Ta and/or Nb, with or without one or metals from the group Ta, Nb, Ti, Mo, W, V, Zr and Hf, is made in a fine powder form by reduction of metal oxide by contact with a gaseous reducing agent, preferably an alkaline earth metal, to near complete reduction, leaching, further deoxidation and agglomeration, the powder so produced being sinterable to capacitor anode form and processable to other usages.
Patent CA-2332704-A1 (CA)
Title: Very large-scale pressure swing adsorption processes
Inventor: WHYSALL MICHAEL
IPC: B01D53/047
Filed: 2001-01-29
Abstract: A process which overcomes limitations to the capacity of PSA units for a wide variety of gas separations by achieving capacities in excess of about 110 thousand normal cubic meters per hour (100 million standard cubic feet per day) in a single integrated process train and departs from the practice of using a purge step equal to or less than the duration of the adsorption step. By increasing the purge time relative to the adsorption step combined with supplying the purge gas for any adsorption bed in the train from one or more other adsorption beds and during the provide-purge step, the other adsorbent beds simultaneously provide the purge gas to essentially all adsorbent beds undergoing the purge step and the single train can provide for significant increases in capacity with a minimum loss in recovery or performance.
Patent CA-2336931-A1 (CA)
Title: Compositions and process for the protective treatment of wood
Inventor: LICHTENBERG FLORIAN
IPC: B27K3/44
Filed: 1999-07-02
Abstract: Compositions for the protective treatment of wood against rot and attack by insects which comprise at least the following components: a) 10-90 parts of coal-tar oil b) 2-20 parts of a biocidally active quaternary ammonium compound c) 10-90 parts of water. are described. The compositions according to the invention are easily preparable stable emulsions which are distinguished, inter alia, by good penetrability, strongly reduced odour of the treated woods, absence of annoying tar oil enrichments at the surface and strongly reduced "bleeding" of the treated wood at hot temperatures, considerably enhanced activity in spite of a lower coal-tar oil content and reduced toxicity compared to pure coal-tar oil.
Patent CA-2338139-A1 (CA)
Title: Crystalline salts of dodecyl 2- (n,n-dimethylamino) -propionate
Inventor: BUYUKTIMKIN SERVET
IPC: C07C229/12
Filed: 2000-05-18
Abstract: Dodecyl 2-(N,N-dimethylamino)-propionate (DDAIP), having the following chemical structure: (see above formula) is prepared by transesterification of ethyl 2-(N,N- dimethylamino)-propionate. Crystalline acid addition salts of DDAIP are prepared by cooled mixing DDAIP with one of a select group of acids in the presence of a water-immiscible solvent such as hexane. The resulting DDAIP salts are crystalline, and exhibit a pattern of defined detection peaks upon analysis by powder x-ray diffraction. DDAIP is useful as a skin penetration enhancer.
Patent CA-2339644-A1 (CA)
Title: Fabric conditioning compositions
Inventor: FRASER STUART BERNARD
IPC: D06M15/267
Filed: 1999-08-20
Abstract: A fabric conditioning composition comprising a substantially water insoluble cationic fabric softening agent and a copolymer characterised in that the copolymer comprises the following monomers: a) a negatively charged monomer having at least one carboxylate group and having the formula: R1R3C-CR2R4 wherein R1, R2, R3, and R4 are independently selected from H, or a C1-C4 alkyl group or a (CH2)n COOR5 in which n is an integer between 1 and 6 or is 0 and R5 is H or a C1-C4 alkyl group, and at least one of R1, R2, R3 and R4 is a (CH2)n COOR5 group, and b) a vinyl substituted heterocyclic monomer containing at least one nitrogen atom, and wherein the mole ratio of a):b) is in the range 20:80 to 50:50.  Examples include, 70:30 Polyvinylimidazole/Acrylic acid copolymer. The fabric conditioning composition gives reduced dye transfer benefits. Use of the copolymer in a fabric conditioning composition as a dye transfer inhibiting copolymer in a fabric conditioning composition, wherein the copolymer does not cause de-stabilisation is also provided.
Patent CA-2339909-A1 (CA)
Title: Method for autostereoscopic display
Inventor: ALLIO PIERRE
IPC: G02B27/22
Filed: 1999-08-04
Abstract: The invention relates to a method of autostereoscopically displaying an N-viewpoint image on a screen having display pixels disposed in rows and columns, each display pixel presenting p>1 color points, corresponding to first, second, . . . , and p<SUP>th </SUP>color components, in which method the pixels of an autostereoscopic image to be displayed are displayed by distributing in space the p color points of each pixel amongst the color points of corresponding color components in p different display pixels, the method of the invention starting from a "high definition" autostereoscopic image presenting at least as many pixels having p color points as the N viewpoint image has color points to generate a said autostereoscopic image to be displayed in which each pixel is a color point of the corresponding color component of p different pixels in the high definition autostereoscopic image.
Patent CA-2344294-A1 (CA)
Inventor: SANTOS KENT W
IPC: G01K7/02
Filed: 1999-09-30
Abstract: L'invention concerne une installation de thermocouple, dans laquelle le thermocouple sert à mesurer la température d'un réacteur de gazéification. Le thermocouple installé traverse la paroi d'un réacteur de gazéification, de sorte que l'élément de mesure se trouve derrière une couche continue de briques de face chaude réfractaire. L'ensemble thermocouple, monté dans une ouverture pratiquée dans la paroi du réacteur de gazéification et dans la brique isolante, traverse, éventuellement, une partie de la brique de face chaude.
Patent CA-2344683-A1 (CA)
Inventor: MULLER-LIERHEIM WOLFGANG G K
IPC: A61L12/12
Filed: 1999-08-17
Abstract: L'invention concerne un dispositif pour l'entretien de lentilles de contact qui comprend un contenant (1), une solution aqueuse à 3 % d'H¿2?O¿2?, pouvant être introduite dans le contenant (1) et un catalyseur constitué d'une couche de platine (2) pour la neutralisation de la solution d'H¿2?O¿2?, la surface dudit catalyseur se trouvant en contact avec la solution d'H¿2?O¿2?. Afin d'améliorer l'effet oligodynamique de la solution d'entretien, une couche d'argent (7) est en contact avec la solution d'H¿2?O¿2?, la surface de ladite couche d'argent étant égale à 3,0 mm?2¿/ml au maximum.