baber/WOPTO huggingface dataset:
Patent CA-2247615-A1 (CA)
Title: Convertase c3 resistante a une regulation negative
Inventor: HARRISON RICHARD ALEXANDER
IPC: C12N9/64
Filed: 1997-03-04
Abstract: L'invention se rapporte à des protéines natives, de voies du complément, qui sont modifiées de sorte que la protéine puise former une convertase C3 résistante à une régulation négative. De préférence, la protéine modifiée est une protéine C3 humaine modifiée. L'invention se rapporte également à des séquences d'ADN codant ces protéines et à des produits de recombinaison d'ADN. Des conjugués comprenant ces protéines et une fraction de liaison spécifique, par exemple un anticorps, sont aussi décrits, de même que des utilisations thérapeutiques de ces protéines et/ou conjugués.
Patent CA-2249417-A1 (CA)
Inventor: WEISS SAMUEL
IPC: A61K38/18
Filed: 1997-03-26
Abstract: A method is disclosed for the in vivo proliferation of a multipotent neural stem cell located in the hippocampal region of a mammal. The method comprises administering at least one growth factor to the hippocampal region which induces the proliferation of the stem cell to produce stem cell progeny that are capable of differentiating into neurons and glial cells. The method provides treatments for neurological diseases, injuries, or disorders which affect the hippocampal region of the brain, such as stroke.
Patent CA-2249938-A1 (CA)
Title: Multiple inverter system
Inventor: SATO KAZUHIRO
IPC: H02M7/49
Filed: 1998-10-09
Abstract: In a multiple inverter system of the present invention, comprising a pluality of input transformers having secondary windings and a plurality of unit inverter cells connected in series at n stages to compose respective phases and supply the electric power to a multiple phase load in combination with the input transformers, the input transformers have 3n sets of three-phase windings at the secondary side and the secondary windings of said transformers which are out-of-phase at each phase are connected to unit inverter cells of each phase at n-th stages. Further, the present invention is provided with a bypass switch control means to melt a fuse that is applicable to a unit inverter given with a circuit closing command by giving this circuit closing command to a bypass switch corresponding to appicabale unit inverter when both of an operation abnormality detecting means and a DC abnormality detecting means.
Patent CA-2250269-A1 (CA)
Inventor: LI HAODONG
IPC: C07K14/52
Filed: 1997-04-03
Abstract: The invention relates to NKAF II polypeptides, polynucleotides encoding the polypeptides, methods for producing the polypeptides, in particular by expressing the polynucleotides, and agonists and antagonists of the polypeptides. The invention further relates to methods for utilizing such polynucleotides, polypeptides, agonists and antagonists for applications, which relate, in part, to research, diagnostic and clinical arts.
Patent CA-2250735-A1 (CA)
Title: Improving fillet forming of brazeable aluminum articles
Inventor: CHILDREE DAVID L
IPC: B23K35/36
Filed: 1997-03-27
Abstract: A process for improving the fillet-forming capability of brazeable aluminum articles. It includes providing a brazeable aluminum article, having at least one surface; and contacting the surface with a dilute, aqueous solution of fluoridic compounds, for at least 5 seconds at a temperature ranging from about 150 to 212 ~F to produce an oxide-free surface which can be readily brazed with a minimal drip loss.
Patent CA-2253835-A1 (CA)
Title: Process for the preparation of chiral keto-heterocycles of basic amino acids
Inventor: PLUMMER JANET SAMARTINO
IPC: C07D235/14
Filed: 1997-05-30
Abstract: A process for the preparation of novel keto heterocycle derivatives of basic natural and unnatural amino acids which affords products of high enantiomeric excess where a metalated heterocycle is reacted with N,O-dialkyl amide of an amino acid containing arylsulphonamide protected side chain amine in high chemical and optical yield as well as the novel compounds obtained by the process.
Patent CA-2254629-A1 (CA)
Title: Hot runner nozzle
Inventor: GUENTHER HERBERT
IPC: B29C45/27
Filed: 1998-11-30
Abstract: A hot runner nozzle structure provides insulation to reduce heat transfer to a utilizing tool and to increase accuracy of temperature measurement and control. A shaft foot of extremely low heat conductivity is used to separate a point of contact between a feed tube shaft and the tool. The shaft foot may be formed of titanium for example. An insulating cap of extremely low heat conductivity surrounds the shaft foot in the vicinity of the nozzle tip. The cap may be formed of PEEK or of titanium for example. Gaps may be provided between the insulating cap and shaft foot and/or between the shaft foot and feed tube shaft. In an alternate embodiment having smaller dimensions, an insulating ring is provided at the end of the feed tube shaft. The structure, combined with a compound body surrounding the feed tube shaft and stabilizing the heater unit, permits placing a heat sensor extremely close to the nozzle tip in order to obtain more accurate temperature control.
Patent CA-2255474-A1 (CA)
Title: Orientation d'outils au moyen de sondes electroniques dans un environnement a interference magnetique.
Inventor: FUHR RICHARD R
IPC: E21B47/024
Filed: 1998-12-08
Abstract: Appareil et méthode destinés à orienter les outils directionnels à l'intérieur d'un puits de forage et à compenser les polarisations causées par des anomalies ferromagnétiques autour du puits de forage,  des chaînes ferromagnétiques et des composants d'outils électriques/électroniques. Cette invention comprend les étapes de mesure du champ magnétique à l'intérieur d'un puits de forage avant la mise en place des chaînes et la mesure du champ magnétique après la fixation des chaînes. Les anomalies de formation ferromagnétiques sont détectées au cours de la première étape de mesure du champ avant la mise en place de l'encastrement, et des éléments de distorsion supplémentaires sont déterminés lors de la deuxième étape de mesure du champ magnétique suite à la mise en place des encastrements. De manière alternative, une étude gyroscopique traditionnelle peut être réalisée afin d'établir la distorsion à l'intérieur d'un puits de forage. Suite à l'établissement de la distorsion du champ magnétique pour le puits de forage (pour un encastrement spécifique) cette distorsion est utilisée pour calculer et corriger une lecture azimutale à l'aide d'outils électroniques au cours de la mise en place à l'intérieur d'un encastrement spécifique. Pour un emplacement donné Y à l'intérieur du puits de forage, les distorsions précédemment déterminées causées par des anomalies et les encastrements attenants sont intégrés dans un calcul azimutal pour fournir un azimut exact pour l'orientation de l'outil.
Patent CA-2262979-A1 (CA)
Inventor: DAUDET GUY
IPC: B62H3/00
Filed: 1997-02-24
Abstract: A bicycle parking apparatus with an anti-theft device for placing around the wheels and the frame. In use, the apparatus requires only a conventional U-shaped or looped bicycle lock or a conventional shackle padlock. The apparatus consists of a post (1) embedded in the ground and provided in its lower portion with a hooking bar (2) or a member (6) engageable by the front wheel. An arm (3) slidably mounted in the upper portion of the post is adaptable to bicycles of any height and engaged by a member (4) designed to be placed around a main bar of the frame. Said member (4) is adjustable about a rod (5) depending on the angle of the frame bar. The bicycle may be fully locked in place by inserting the shackle of a bicycle lock through one of the holes (7) in the member (4) and into a hole (8) in or on the post (1).
Patent CA-2263604-A1 (CA)
Inventor: GLOTH DAVID
IPC: A61B18/14
Filed: 1997-07-28
Abstract: L'invention se rapporte à une électrode (24) pour instrument chirurgical, qui offre un bord (76) tranchant pour couper des tissus disposé le long d'une partie avant, un espace (51), dont la profondeur s'étend le long d'un axe passant à travers la partie avant, et une partie arrière où la profondeur termine dans une zone située entre la partie avant et la partie arrière. Dans cet ensemble, des espaces (51) relativement profonds peuvent être formés dans l'électrode (24) sans qu'il y ait besoin d'émousser davantage le bord (76) tranchant. En outre, l'électrode (24) a une forme à section transversale qui change sensiblement en permanence tout au long d'une partie de l'électrode (24), d'une section transversale sensiblement circulaire à une extrémité distale jusqu'à une section transversale sensiblement rectangulaire le long du bord (76) tranchant. Etant donné que ce changement est continu, la formation non souhaitée d'un arc électrique due au changement de la forme est sensiblement réduit.
Patent CA-2263765-A1 (CA)
Inventor: DESAI NEIL
IPC: A61K9/16
Filed: 1997-08-19
Abstract: La présente invention concerne un procédé mis au point en vue de la formation de particules submicromies (nanoparticules) par dénaturation thermique de protéines (telles que l'albumine sérique humaine) en présence d'ions polyvalents (tels que du calcium). Elle concerne également des produits nouveaux élaborés par application dudit procédé. Une concentration appropriée d'ions polyvalents, compris dans une gamme relativement étroite de concentrations, entraîne la précipitation d'une protéine sous la forme de particules colloïdales, à une température bien inférieure à celle de la dénaturation thermique de la protéine (cette température pouvant aller jusqu'à 60 ·C dans le cas de l'albumine sérique). Les températures utilisées dans l'application dudit procédé sont suffisamment basses pour que d'autres molécules puissent être incorporées dans les particules submicromiques de la présente invention, y compris des composés ne supportant pas des températures élevées (cette incorporation se faisant par exemple, par coprécipitation). Ces procédés facilitent la production de nanoparticules et de microparticules contenant diverses molécules (telles que des acides nucléiques, des oligonucléotides, des polynucléotides, de l'ADN, de l'ARN, des polysaccharides, des ribozymes, des composés pharmacologiquement actifs, et d'autres composés similaires) utiles, notamment, à des fins thérapeutiques et diagnostiques. L'adjonction de cations polyvalents sert à la fois à induire la précipitation et à permettre la liaison de molécules à charge négative, telles que l'ADN, avec une protéine à charge négative.
Patent CA-2263799-A1 (CA)
Inventor: ERFLE DOUGLAS
IPC: A61K47/48
Filed: 1997-08-21
Abstract: Compositions et méthodes pour traiter les infections, en particulier les infections bactériennes. Des analogues peptides d'indolicidine contenant au moins deux acides aminés basiques sont préparés et administrés sous forme de peptides modifiés contenant de préférence un agent de solubilisation photo-oxydé.
Patent CA-2265530-A1 (CA)
Title: Improved insert for thermoforming
Inventor: MINGHETTI ETTORE
IPC: B29C51/12
Filed: 1998-06-26
Abstract: The present invention relates to mold inserts suitable for use with thermoformable sheets made of poly(methyl) methacrylate and other thermoplastic sheet material. The inserts become an integrated part of the thermoformed product, and are characterized by having at least one removable portion or plug. The plug(s) are removed during the thermoforming process, and allow the thermoformed sheet material to shrink without creating undesirable levels of stress in the sheet material. This prevents cracking or other failure of the sheet material.
Patent CA-2267768-A1 (CA)
Title: Lentille intraoculaire pouvant etre inseree
Inventor: BAYERS JON H
IPC: A61F2/16
Filed: 1998-08-05
Abstract: Lentille intraoculaire (10) pouvant être manipulée par un instrument de traction (50) à travers une incision limbique dans l'oeil et mettant en application une partie optique. Cette partie optique (12) se présente sous la forme d'un corps souple transparent (12). On utilise également un élément de fixation (16) afin de positionner la lentille (10) dans un segment intérieur de l'oeil. Cet élément de fixation (16) peut consister en au moins un appendice (18)(20) relié à la partie optique (12). Cette partie optique (12) possède, de plus, une zone de contact (22) (24) permettant d'exercer une force en position contiguë à ladite partie (12) au moyen d'un instrument de traction (50). On conserve l'intégrité soit de la partie optique (12), soit de l'élément de fixation (16), par renforcement de ces derniers contre des forces exercées par l'instrument de traction (50).
Patent CA-2270705-A1 (CA)
Title: Display technique for three dimensional virtual reality
Inventor: CARRARO GIANPAOLO U
IPC: G06T15/00
Filed: 1999-05-04
Abstract: A limitation of a three dimensional world in which objects in the distance may be represented in only two dimensions as a video on a screen is that when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video but instead is a location which is represented by computer graphics, namely, any portion of the object that is no longer on the video screen disappears. To overcome this limitation, when an object within the field represented by the video undergoes a trajectory that takes it to a location in the world that is not represented by the video on the video screen as currently configured, i.e., shaped and sized, the configuration of the screen is changed so that the object can continue to be displayed as video. The size and/or shape of the video screen is changed. For example, the video screen may be increased in overall size, or it may "grow" a specific appendage screen on which the object is displayed as video. If an additional appendage screen is "grown", it need not be contiguous with the screen as previously configured.  Such appendage screens may sized, shaped, and located so that, the video object continues to be visible rather than becoming invisible because it is no longer displayable within the video screen.
Patent CA-2272633-A1 (CA)
Title: Polymer film compositions for capsules
Inventor: HE XIONGWEI
IPC: A61K9/36
Filed: 1997-12-05
Abstract: The present invention relates to non-animal polymer compositions suitable for film forming, particularly hard and soft capsules, comprising water soluble cellulose ethers, hydrocolloides and sequestering agents.
Patent CA-2273918-A1 (CA)
Inventor: LONGSHORE THEODORE F
IPC: H04B7/08
Filed: 1997-12-02
Abstract: The present invention provides a system for simulcasting and diversely receiving radio frequency (RF) signals. The system of the present invention comprises at least one RF transceiver (32) and a plurality of RF units (60) each including a transmitter (TX) for simulcasting an RF signal to a user, and further including one receiver (RXA) which is paired with another receiver (RXB) in another one of the RF units (60), the pair of receivers (RXA-RXB) providing for diversity reception of an RF signal from the user. The implementation of diversity reception with only one instead of two receivers in each RF unit (60), as taught by the present invention, reduces both signal loss and required cabling in the system.
Patent CA-2275476-A1 (CA)
Title: Pulsed gas metal arc welding of flammable liquid containing workpieces
Inventor: LESSARD JEAN B
IPC: B23K9/09
Filed: 1999-06-18
Abstract: A method of welding two workpieces using a combination of gas metal arc welding and pulsed arc welding. The method dissipates the heat energy before further welding is done and also controls the heat input into the workpieces. The method is particularly adaptable to welding fall arrest base plates on to transformers containing a combustible substance.
Patent CA-2275977-A1 (CA)
Inventor: PORCHERON FRANCOIS
IPC: A61G5/14
Filed: 1999-06-22
Abstract: - Fauteuil pour handicapé. - La noix d'accoudoir comprend: -une demi-noix de dossier (32) adaptée sur un montant du dossier de la structure et portant un axe de pivotement, - une demi-noix d'accoudoir (33) montée pour tourner sur l'axe de pivotement et délimitant un alésage (55) recevant, à rotation, la queue cylindrique (56) d'un accoudoir (26) coudé, -et des moyens (41, 63, 64) interposés entre les demi-noix pour assurer l'immobilisation angulaire de la queue soit en position sensiblement verticale, soit en position sensiblement horizontale de l'accoudoir coudé. - Application aux fauteuils verticalisateurs.
Patent CA-2276640-A1 (CA)
Title: System and method for facilitating the transfer of information between programs processed in a digital computer system
Inventor: KORN PETER A
IPC: G06F9/455
Filed: 1999-06-25
Abstract: An information transfer subsystem is disclosed for transferring information between a program being processed in a virtual machine execution environment and a program being processed in a native execution environment in a digital computer system. The information transfer subsystem comprises a virtual machine bridge class object and plurality of native bridge agents, the native bridge agent transferring the information with each other through a native communication mechanism provided by said native execution environment. The virtual machine bridge class object is instantiable in the virtual machine execution environment to handle transfers of the information with the program in said virtual machine execution environment. The virtual machine bridge class object, in turn, can transfer information with a first of the native bridge agents. A second of the native bridge agents is configured to transfer the information with the program being processed in said native execution environment. As noted above, the first and second native bridge agents can transfer the information with each other through a native communication mechanism provided by said native execution environment, thereby to facilitate transfer of the information between programs in the two environments.
Patent CA-2278279-A1 (CA)
Title: Method and system for customizing marketing services on networks communicating with hypertext tagging conventions
Inventor: TOBIN WILLIAM J
IPC: G06F17/30
Filed: 1998-01-20
Abstract: A server based communications system provides dynamic customization of hypertext tagged documents (3109) presented to clients (14) accessing the system. The customization, which pertains to the content of the documents (3109), is based on the specific requirements of a class to which the client belongs. The class may be defined by the identity of the source which refers the client to the system. The database is utilized which dynamically retrieves stored data in response to a server software tool which configures the data into hypertext tagged documents. The system utilizes a dynamic token scheme (3301) to pass the identity of the referring network site from document to document to eventual purchase document accessed by the client through the hypertext tags.
Patent CA-2278663-A1 (CA)
Inventor: LEONG KAM W
IPC: A61K38/00
Filed: 1998-01-29
Abstract: A delivery system that releases a diagnostic marker or therapeutic agent in a manner sensitive to the concentration of urease in a physiological compartment, particularly the gastrointestinal tract, and methods of use.
Patent CA-2281989-A1 (CA)
Title: Emergency shut-off device for cam-over valve
Inventor: WILLETTS JOEL LEE
IPC: F16K17/38
Filed: 1999-09-07
Abstract: A device works as an emergency shut off for a valve having an open and a closed position with a lever for manually moving the valve from one of the positions to the other. The device has a mounting locus in fixed position relative to the valve, a tension member having a first end, a second end and an intermediate portion therebetween, the first end being affixed to the lever and the intermediate portion passing through the mounting locus;  a sleeve member slidingly fitted along the tension member, the sleeve member having a first spring retainer firmly fixed thereto along its length and a second spring retainer slidingly received on the sleeve member and coupled thereto by a portion of a releasable adhesive agent;  a helical spring for biasing, mounted along an external surface of the sleeve member in a longitudinally compressed manner between the first and second spring retainers; and a first cable stop affixed to the tension member, the sleeve member being constrained between the mounting locus and the first cable stop. When a release agent, such as heat, decouples the second spring retainer from the sleeve member by releasing the releasable adhesive agent, such as a solder, the spring restores to an uncompressed length, effectively moving the first and second spring retainers apart and translating the tension member a sufficient amount to move the valve from one position to the other position. In addition to this automatic action of the device, the valve may be manually moved from one position to the other by a pull on the tension member.
Patent CA-2287493-A1 (CA)
Inventor: GRYSKIEWICZ STANLEY MICHAEL
IPC: D04H1/00
Filed: 1998-03-16
Abstract: A 3-dimension thermoformed bicomponent fiber nonwoven material comprising a lofty bicomponent material layer forming a plurality of peaks separated from one another by channels and having a basis weight in the range of about 0.5 to 7.0 ounces per square yard. The bicomponent material layer comprises a structural component and a heat activatable adhesive component suitable for thermoforming. Also disclosed are various configurations of this material suitable for use in absorbent personal care articles such as sanitary napkins, disposable diapers, incontinent-care pads and the like.
Patent CA-2288254-A1 (CA)
Title: Grease containing diamine corrosion inhibitors
Inventor: ANDREW DAVID L
IPC: C10N10/04
Filed: 1998-01-27
Abstract: The present invention is directed to a grease containing base oil, a thickener and a hydrocarbyl substituted diamine additive exhibiting enhanced resistance to corrosion.
Patent CA-2288303-A1 (CA)
Inventor: CROWLEY GILES JAMES
IPC: C11D1/14
Filed: 1998-04-23
Abstract: The invention provides a hard surface cleaning composition of pH 7-13 comprising: a) a surfactant selected from the group comprising anionic sulphate, anionic sulphonate, alkyl poly glycoside and mixtures thereof, b) a sequestering agent for Group II metals, and c) a solvent selected from the group comprising hexanol, methyl digol.
Patent CA-2290229-A1 (CA)
Title: Log positioning and securing device
Inventor: NEVILLE RICHARD L
IPC: B27B29/00
Filed: 1999-11-19
Abstract: A log positioning and securing device is described in which a frame supports a log receiving trough with sides positioned to receive and support a log along a longitudinal plane. A log clamp including a pair of log clamp members is movably mounted to the frame. The clamp members are driven to move between an inoperative position in which the log clamp members are separated in a log receiving position, and a log clamping position in which the log clamp members are moved toward one another and toward the longitudinal plane, to clamp and hold a log securely along the rough, with the centerline of the log parallel to or coincidental with the plane.
Patent CA-2292300-A1 (CA)
Inventor: OLHEISER DENNIS J
IPC: B32B27/08
Filed: 1999-12-16
Abstract: A reinforced shrink wrap has been developed for use in all types of environments and products or applications. The shrink wrap is tear resistant and can be prepared to withstand exposure from the sun and corrosive elements. The shrink wrap includes a layer of a shrink film and a layer of polyolefin film. In addition, a reinforcing filamentous grid in an extrusion tie layer is disposed in between the shrink film and a polyolefin film.
Patent CA-2293067-A1 (CA)
Inventor: SAIKA MASAAKI
IPC: C08G59/42
Filed: 1999-12-23
Abstract: The present invention provides a curable resin composition with excellent low temperature curability and good storage stability comprising (A) a polyepoxide compound, (B) a curing agent containing a functional group selected from carboxyl group and acid anhydride group, and (C) a potential curing catalyst constituted from (a) an onium salt or a tertiary amine and (b) a Lewis acid.