baber/WOPTO huggingface dataset:
Patent CA-2213288-C (CA)
Inventor: OLIVER JAY T
IPC: C23C14/06
Filed: 1997-08-18
Granted: 2000-12-26
Abstract: A press plate for producing decorative laminate from resin impregnated paper, with alumina particles on its pressing surface, is coated with diborides selected from the group consisting of hafnium diboride, molybdenum diboride, tantalum diboride, titanium diboride, tungsten diboride, vanadium diboride, or zirconium diboride or mixtures thereof for making the press plate resistant to scratching. The preferred diborides are titanium and zirconium. The most preferred diboride is titanium. The color, gloss and surface appearance of laminate pressed with a titanium diboride coated press plate is substantially the same as laminate pressed with the press plate before coating.     Mailed 8128196        U.S. Express Mail GB829921829
Patent CA-2213741-C (CA)
Inventor: COURTOY JEAN-FRANCOIS
IPC: C08J5/18
Filed: 1996-02-20
Granted: 2007-12-04
Abstract: A radiation-curable coating composition comprising a PVC resin, an acrylic o r methacrylic compound and a radiation-reactive urethane oligomer. Also described is a process for coating a material, comprising the steps of applying to the material a coating composition according to the invention, heating to heat-cure the coating composition and irradiati ng the composition to radiation-cure the coating composition. There is also provided an article comprising a material coated with the composition according to the invention. The invention is particularly useful for coating resilient vinyl flooring materials.
Patent CA-2215691-C (CA)
Title: Scanning lithography system having double pass wynne-dyson optics
Inventor: ALLEN PAUL C
IPC: G03F7/20
Filed: 1996-03-19
Granted: 2001-12-25
Abstract: A small field scanning photolithography system (700) has a double pass Wynne-Dyson optical system (770) which provides an erect, non-reverted, unmagnified image. An optical path through the system passes from an object (722), reflects off an input reflector (731), passes through a first quadrant of a lens (740), reflects off a concave mirror (750), passes through a second quadrant of lens (740) into folding optics (732) where an intermediate image forms, passes from folding optics (732) through a third quadrant of lens (740), reflects off concave mirror (750) a second time, passes through a fourth quadrant of lens (740), and finally reflects off an output reflector (733) to a plane (160) where a final image (362) forms. Typically, input and output reflectors (731, 733) and the folding optics (732) are prisms. A field stop (760) may be provided in folding optics (732) where the intermediate image forms. Magnification adjusting optics (710, 720) can be added to input and output prisms (731, 733) or to folding optics (732). The magnification adjusting optics (710, 720) forms two narrow meniscus air gaps (713, 723) which are equal size for unity magnification. Narrowing one air gap (713 or 723) and widening the other air gap (723 or 713) changes magnification slightly.
Patent CA-2218598-C (CA)
Inventor: CARN RONALD M
IPC: A61B17/56
Filed: 1997-01-03
Granted: 2005-07-05
Abstract: A bone plug (10) is provided for insertion into the medullary canal of a patient's bone during orthopedic surgery, wherein the bone plug restricts or prevents passage of bone cement introduced under pressure into the medullary canal. The bone plug comprises a generally cylindrical member formed from a biocompatible material such as polyethylene, and having sets of distal (24) and proximal fins (26).  The distal fins are defined by a spiral thread set at an angle to extend distally, to bend to accommodate the shape of the medullary canal and thereby anchor the bone plug by biting into patient bone, whereas the proximal fins flex during plug insertion to extend proximally and thereby seal against bypass flow of bone cement past the bone plug. An insertion tool is disclosed for use in placing the plug during a surgical procedure, such as hip arthroplasty.
Patent CA-2228785-C (CA)
Inventor: MICHAUD PASCAL
IPC: C11D3/24
Filed: 1998-03-03
Granted: 2007-10-09
Abstract: A dewatering composition comprises a solution of a surfactant in a mixture of a fluorinated solvent and a polyfluorinated alcohol of formula (I): Rf-(CH2)n-OH (I) n = 1 or 2; and Rf = 4 - 8C perfluoroalkyl radical.
Patent CA-2229829-C (CA)
Inventor: WEST RON
IPC: E04H17/14
Filed: 1998-02-18
Granted: 2004-09-21
Abstract: An attachment system for connecting a hollow rail to a support post includes an attachment bracket with a face plate for attachment to the support post, and a distally extending internal support member for nesting within the end of the rail. To enable disposition of the rail in an orientation other than orthogonal to the face plate, a portion of the internal support member is rounded to tapered, thereby providing up to forty-five degree movement from the orthogonal position. The attachment system also includes a snap-on cover which connects to the attachment, bracket to cover the attachment bracket and thereby provide a more aesthetically pleasing appearance to the attachment point between the support post and the rail.
Patent CA-2231299-C (CA)
Inventor: KOBAYASHI NOBUO
IPC: B23K11/16
Filed: 1998-03-05
Granted: 2005-09-06
Abstract: When a workpiece which is made up by laminating a plurality of plates of different thicknesses is welded by using a spot welding gun having a pair of electrode tips, the electrode force to the workpiece by one of the electrode tips, which is positioned on the side of a thinner plate, is made larger that the electrode force to the workpiece by the other of the electrode tips. The contact pressure on the side of the thinner plate becomes larger with the result that the contact resistance decreases. Therefore, the nugget on the side of the thinner plate becomes smaller than the nugget on the side of the thicker plate.
Patent CA-2231398-C (CA)
Title: Control of molecular weight and end-group functionality in polymers
Inventor: CHONG YEN KWONG
IPC: C08F290/04
Filed: 1996-10-04
Granted: 2006-12-19
Abstract: This invention relates to a process for the production of lower molecular weight polymers by free radical-initiated polymerization of unsaturated species characterised by the use of an unsaturated compound of Formula (I) as a chain transfer agent wherein R1 and R2 are the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted saturated or aromatic carbocyclic or heterocyclic ring, and halogen; X is selected from the group consisting of chlorine, bromine, optionally substituted alkylsulfonyl, and optionally substituted arylsulfonyl; Y is selected from the group consisting of halogen, a polymer chain, and CR3R4Z, wherein R3 and R4 are the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted saturated, unsaturated or aromatic carbocyclic or heterocyclic ring, and halogen; and Z is selected from the group consisting of chlorine, bromine, optionally substituted alkylsulfonyl and optionally substituted arylsulfonyl; provided that when X is optionally substituted alkylsulfonyl or optionally substituted arylsulfonyl, Y is not halogen. The invention also relates to various polymers produced by this process and products comprising these polymers. The process of the invention may also be used in the preparation of A-B type block copolymers.
Patent CA-2232190-C (CA)
Title: Agent d'adsorption de bradykinine, procede d'elimination de bradykinine par adsorption et adsorbeur
Inventor: ASAHI TAKASHI
IPC: B01D15/04
Filed: 1996-08-23
Granted: 2002-07-30
Abstract: Cette invention concerne un agent d'adsorption de bradykinine comprenant un copolymère sulfoné styrène/divinylbenzène, un procédé d'élimination de bradykinine consistant à mettre cet agent d'adsorption en contact avec un liquide contenant de la bradykinine, ainsi qu'un adsorbeur de bradykinine se composant d'un conteneur comportant une entrée et une sortie, et rempli dudit agent d'adsorption.
Patent CA-2233231-C (CA)
Inventor: ISHIDA YUJI
IPC: C03C10/00
Filed: 1996-09-25
Granted: 2004-09-21
Abstract: Ce verre cristallisé peut être moulé par réétirage et un procédé permet de produire un article de verre cristallisé par moulage par réétirage. Dans ce verre cristallisé, la taille maximum de particules des cristaux déposés est de 5  mu m ou moins et la phase vitreuse représente 10 à 85 % de son volume. Il présente un point de ramollissement inférieur au point de fusion des plus gros cristaux déposés et sa cristallisation reste partielle même quand on le chauffe jusqu'à une température dépassant ce point de ramollissement. On produit un article de verre cristallisé par moulage par réétirage en prémoulant ce verre cristallisé puis en l'orientant tout en le chauffant à une température supérieure à son point de ramollissement.
Patent CA-2234222-C (CA)
Title: Seed shattering
Inventor: CHILD ROBIN
IPC: C12N15/56
Filed: 1996-10-04
Granted: 2007-12-04
Abstract: A plant is provided which contains at least one dehiscence zone (DZ)-selecti ve chimeric gene incorporated in the nuclear genome of its cells, wherein said DZ-selective chimeric gene comprises the followin g operably linked DNA fragments: a) a transcribed DNA region encoding: 1) a RNA which, when produced in cells of a particular DZ o f the plant, prevents, inhibits or reduces the expression in said DZ cells of an endogenous gene of the plant encoding a cell wall hydrolase, particularly an endopolygalacturonase, or, 2) a protein or polypeptide, which when produced in said DZ cells, kills or disables them or interferes with their normal metabolism, physiology or development; b) a plant expressible promoter which directs expression of sai d transcribed DNA region at least in said DZ cells, provided that if said transcribed DNA region encodes a protein or polypeptide, or encodes an antisense RNA or ribozyme directed to a sense RNA encoded by an endogenous gene that is expressed in said plant in cells other than said DZ cells, said plant expressible promoter is a DZ- selective promoter, which directs expression of said transcribed region selectively in said DZ cells and wherein said plant is characterized by modified dehiscence properties, preferably delayed dehiscence, when compared to a plant not containing said DZ-selective chimeric gene.
Patent CA-2234697-C (CA)
Title: Cellular telecommunications network having seamless interoperability between exchanges while supporting operation in multiple frequency hyperbands
Inventor: LUPIEN FRANCIS
IPC: H04W88/06
Filed: 1996-10-08
Granted: 2005-05-03
Abstract: A system and method of providing seamless interoperability for a mobile station roaming between cellular telecommunication systems (31) operating in multiple hyperbands such as the 1900-MHz PCS hyperband and the 800-MHz cellular telephone hyperband, utilizing United States cellular standards. An enhanced inter-exchange communications protocol based on IS-41 is utilized to communicate information required for seamless interoperability between mobile switching centers (MSCs) (MSC1, MSC2). The enhanced inter-exchange communications protocol comprises a plurality of signaling messages (51) and a plurality of modified message parameters (52) within the signaling messages. The modified message parameters (52) are modified to include information elements (53) required for seamless interoperability between the multi-hyperband capable exchanges and are added as optional (overriding) parameters to the signaling messages.
Patent CA-2237063-C (CA)
Title: Acetabular cup body prosthesis
Inventor: RIES MICHAEL D
IPC: A61F2/30
Filed: 1996-11-25
Granted: 2005-03-22
Abstract: An acetabular cup prosthesis (86) has a cup body with correspondingly shaped inner concave and outer convex (87) surfaces. The cup body has an apex (98) as well as a base (91) that defines a plane (92). The cup body outer convex surface (87) has a portion (89) between the rim (103) and a distance about one third of the distance from the rim (103) to the apex (98), which portion (89) has an outer surface formed by first generating an arc (106) between the rim (103) and a transition point (90) about one third of the distance from the rim (103) to the apex (98), arc having a radius of curvature (101) whose origin (102) is near to, but not coincident with the center of the base (91), and then rotating the arc 360 degrees about a central axis (99) of the cup body, which axis runs between the apex (98) and the center of the base. In another embodiment, a plurality of cup bodies (86) are provided in a range of sizes between about 40 mm and 80 mm. Each cup body (86) has a companion rotary reamer (111) that is correspondingly shaped. The companion cup body (86) is oversized between about 1 mm and 3 mm relative to the companion rotary reame r (111), so that a generally constant change in volume is provided for all cup sizes between 40 mm and 80 mm.
Patent CA-2238463-C (CA)
Title: Hydrogen production apparatus and method operable without an external supply of steam and suitable for fuel cell systems
Inventor: MIYAKE YASUO
IPC: H01M8/02
Filed: 1998-05-22
Granted: 2006-08-29
Abstract: A hydrogen production apparatus is disclosed which operates based on a steam reforming method and operates without supply of steam from outside. The hydrogen production apparatus humidifies air by allowing air to contact with warm water to generate a mixture of air and steam, mixes the mixture with a hydrocarbon fuel. Alternatively, the hydrogen production apparatus humidifies a mixture of a hydrocarbon fuel and air by allowing the mixture to contact with warm water to generate a mixed gas of the hydrocarbon fuel, air, and steam. The hydrogen production apparatus then allows air to partially oxidize the hydrocarbon fuel and allows the steam to reform the hydrocarbon fuel, resulting in the production of hydrogen.
Patent CA-2240053-C (CA)
Inventor: KALLNER DAVID J
IPC: B29L22/00
Filed: 1998-06-09
Granted: 2001-02-27
Abstract: A rotary heat sealer and method therefor useable for thermally sealing overlapping film layers wrapped about a load at a load wrapping station. The rotary heat sealer includes a plurality of heat sealing disks each having a peripherally disposed heating element, and a rotatable shaft disposed through a central opening of the plurality of heat sealing disks, wherein the heat sealing disks are resiliently coupled to the rotatable shaft by spring members so that the heat sealing disks are rotatable with the shaft and the heat sealing disks are independently movable transverselyrelative to the rotatable shaft axis. The rotary heat sealer is movable toward the load to engage the heating elements thereof with overlapping film layers wrapped about the load to thermally seal an overlapping film tail to underlying film layers, whereby the transversely movable heat sealing disks compensate for variations in the shape of the load, thereby providing improved welding of overlapping film layers.
Patent CA-2249627-C (CA)
Title: Procede et dispositif de fabrication de plaques composites
Inventor: VOIRON JACQUES
IPC: D04H1/54
Filed: 1998-01-14
Granted: 2006-05-30
Abstract: The invention concerns a method for making composite sheets consisting in: introducing continuously at least one yarn layer, this layer comprising at least two materials having different melting points, in a zone where it is heated at a temperature ranging between said melting points and less than the degradation temperature of the material having the lower melting point; passing over the layer at least a turning bar heated at a temperature ranging between said melting points and less than the degradation temperature of the material with the lower melting point; compressing the layer as it comes out of the bar or bars and cooling it so as to form a composite strip; collecting the strip in the form of one or several composite layers. The invention also concerns a device for implementing the method as well as the resulting products.
Patent CA-2254528-C (CA)
Inventor: SETHI RAJAT
IPC: A61P43/00
Filed: 1998-11-26
Granted: 2007-07-17
Abstract: Compositions and methods for treatment and prevention of ischemia-related conditions, such as ischemia reperfusion injury and cellular dysfunction, are disclosed.  The methods are directed to administering pharmaceutical compositions containing at least one compound derived from vitamin B6, such as pyridoxal-5'-phosphate, pyridoxine, pyridoxal, and pyridoxamine.
Patent CA-2256458-C (CA)
Inventor: OSTROVSKY ISAAC
IPC: A61F2/01
Filed: 1997-11-26
Granted: 2006-10-24
Abstract: L'invention concerne un filtre à thrombus récupérable pouvant être implanté, fixé solidement à l'intérieur d'une veine, à l'emplacement souhaité, et retiré par voie intraveineuse, même après la néoformation d'une hyperplasie de l'endoveine.
Patent CA-2265712-C (CA)
Title: Intermediates and process for preparing olanzapine
Inventor: NICHOLS JOHN RICHARD
IPC: A61K31/55
Filed: 1997-09-18
Granted: 2006-10-31
Abstract: The present invention provides a process for preparing olanzapine and intermediates therefor.
Patent CA-2270513-C (CA)
Title: Method for carbon dioxide recovery from a feed stream
Inventor: HAGSTROM BRAD
IPC: C01B32/50
Filed: 1999-04-30
Granted: 2003-07-08
Abstract: The method of the invention recovers CO2 from an inlet cold feed stream containing a low concentration thereof, and includes the following steps. An inlet feed stream is passed through a heat exchanger, against a compressed flow of the inlet feed stream, to cool the compressed flow. The compressed flow is further cooled and compressed to a high pressure, fed to a distillation column and there converted into a vent gas including CO2 and a high purity bottom liquid CO2. A first portion of the bottom liquid CO2 is expanded to achieve a first cooled liquid CO2 refrigerant flow, which is then vaporized against the vent gas to recover condensed CO2 therefrom. The condensed CO2 is then reintroduced into the distillation column. A second portion of the bottom liquid CO2 is expanded to achieve a second cooled liquid CO2 refrigerant flow, which is then used to subcool the CO2 product output.
Patent CA-2273077-C (CA)
Title: Tubular grafts from purified submucosa
Inventor: FEARNOT NEAL E
IPC: A61F2/06
Filed: 1997-12-10
Granted: 2007-11-20
Abstract: An easy-to-produce and mechanically strong tube of an implantable graft prosthesis has been developed which is manufactured in any desired length, wall thickness, or diameter. The construct produced by t he method of the invention may be used as grafts for arteries, vein, ureters, urethras, shunts, or in any application where a compliant, tissue-compatible tube is needed. The manufacture of the graft prosthesis generally involves wrapping multiple sheets of a purified, collag en- based matrix structure around a mandrel, compressing and drying the tissue on the mandrel before removing the construct for eventual use.
Patent CA-2283753-C (CA)
Inventor: BARNES ALLEN C
IPC: C12N5/078
Filed: 1998-03-20
Granted: 2005-10-11
Abstract: On crée une réplique d'un patient à partir d'un milieu de culture en couches dans lequel se forme un milieu de culture solide, de sorte qu'une discontinuité existe entre les couches. Un orifice d'infusion est aligné sur la discontinuité, de manière à pouvoir infuser un spécimen neuf non dénaturé du sang du patient dans la discontinuité, afin d'obtenir une couche mince de sang entre les couches du milieu de culture. Cette couche mince élimine le besoin d'anticoagulant, ce qui permet de cultiver sans difficultés des pathogènes portés par le sang sans utiliser de bouillon de culture. On peut placer d'autres antibiotiques ou d'autres échantillons de médicaments sur la surface du milieu de culture au-dessus de la couche de sang, de telle façon que l'antibiotique puisse se diffuser à travers le milieu de culture et révéler les sensibilités des pathogènes cultivés. On peut placer d'autres spécimens de pathogènes ou de tissus sur la surface du milieu de culture, de manière à pouvoir observer les effets de médicaments ou de facteurs de croissance présents dans le sang du patient, ce qui permet à la couche de sang piégée de jouer le rôle de réplique biologique du patient.
Patent CA-2285941-C (CA)
Title: Process for enhancing immune response in animals using .beta.-carotene as a dietary supplement
Inventor: HAYEK MICHAEL G
IPC: A23K1/18
Filed: 1998-04-08
Granted: 2004-06-29
Abstract: A process for feeding a companion animal such as a dog or cat a diet containing an effective amount of .beta.-carotene to enhance immune response and improve the overall health of the animal is provided.  Preferably, the diet includes from about 1 to about 50 mg/day of .beta.-carotene (from about 6 to about 315 mg .beta.-carotene/kg diet).  Such a diet provides sufficient .beta.-carotene to be absorbed by the animal and supplied to the blood and blood leukocytes and neutrophils in the animal.
Patent CA-2293516-C (CA)
Inventor: KOTTKE WILLIAM CURTIS
IPC: H02K41/02
Filed: 1999-12-29
Granted: 2002-05-07
Abstract: A reciprocating pump includes a cylinder with a closed interior compartment. A piston assembly has a dispensing end and an opposed end and is moveably mounted within the compartment for reciprocating movement in opposed linear directions between opposed ends of the closed interior compartment. A linear magnetic drive generates a linearly moving magnetic field for moving the piston assembly in opposed linear directions through a swept volume in each of said opposed linear directions, one of said linear directions being a dispensing stroke and the other of said linear directions being a suction stroke. A sealing member is provided between the cylinder and the piston assembly to divide the interior compartment of the cylinder into a dispensing chamber and a reservoir chamber. A valve- controlled inlet conduit communicates with the dispensing chamber from which liquid is dispensed and a valve-controlled outlet conduit communicates with the dispensing chamber for directing pumped liquid out of the interior compartment as the piston assembly is moved through the swept volume in a dispensing stroke. An energy storage and release media communicates with the reservoir chamber for storing energy as a result of movement of the piston assembly in a direction away from the dispensing end of the interior compartment and for releasing the stored energy as the piston assembly is moved in a direction toward the dispensing end of the interior compartment. In certain preferred embodiments, the pumps are hermetic and the energy storage and release media includes a gaseous substance in the reservoir chamber. Methods of pumping liquids with the pumps of this invention also constitute a part of the present invention.
Patent CA-2298999-C (CA)
Title: Digital channelizer having efficient architecture for cyclic shifting and method of operation thereof
Inventor: MORETTI VINCENT C
IPC: G01R23/16
Filed: 2000-02-18
Granted: 2004-02-17
Abstract: The invention is a digital channelizer and a process for dividing an input bandwidth into at least some of N channels. A digital channelizer which divides an input bandwidth into at least some of N channels in accordance with the invention includes a window presum (102); a cyclic shift (24'), coupled to the I output groups of date words, having I cyclic shift paths, each cyclic shift path being responsive to a different output group of data words to produce I output groups of data words, each cyclic shift path comprising a plurality of word shifting elements each responsive to a group of data words; and a discrete Fourier transform (26') coupled to the I output groups of cyclically shifted data words outputted from the cyclic shift.