baber/WOPTO huggingface dataset:
Patent CA-2251639-C (CA)
Title: Appareil et procede destines a perforer et stimuler des couches souterraines
Inventor: SNIDER PHILIP M
IPC: E21B43/117
Filed: 1997-07-28
Granted: 2002-06-11
Abstract: L'invention concerne un procédé et un appareil destinés à perforer et stimuler des couches souterraines traversées par un puits (10) de forage ayant des tubes (12) qui y sont placés de façon à établir une communication fluide entre lesdites couches souterraines et le puits de forage. Une enveloppe, une gaine ou un manchon (20) d'un matériau propulseur, conçue de façon à entourer sensiblement au moins une charge creuse (40) placée dans le puits de forage, est mis à feu par le choc, la chaleur et/ou la pression générés par la charge que l'on a fait exploser. En brûlant, le matériau propulseur génère des gaz qui nettoient les perforations formées dans les couches souterraines par explosion d'une ou de plusieurs charges creuses et qui étendent la communication fluide entre les couches souterraines et le puits de forage.
Patent CA-2255249-C (CA)
Title: Safety apparatus for horizontal lifeline
Inventor: OSTROBROD MEYER
IPC: A62B35/00
Filed: 1998-12-15
Granted: 2008-02-19
Abstract: A safety apparatus is capable of tensioning a horizontal lifeline while providing an adjustable shock absorber and a gauge or indicator for indicating the amount of tension on the lifeline. A housing is adapted to be secured to an anchor point through an anchoring line. The free end of a horizontal lifeline passes over a pulley within the housing and around a number of rollers which are adapted to maintain the lifeline in secure contact with the pulley. A lever is utilized to rotate the pulley in order to tension the lifeline. The lever, however, is interconnected to the pulley through an adjustable disk brake which can be preset to a desired force. When the tension on the lifeline reaches its desired level, the brake slips and the lever can freely rotate. A second series of disk brakes connected to the pulley function as a shock absorber. In the event of a fall, the initial force on the horizontal lifeline exceeds the braking force of the shock absorber brakes and the pulley can rotate through a limited number of turns. Eventually, however, the shock absorber brake slows the fall and eventually stops the same. The amount of tension on the shock absorber brake can also be adjusted to thereby control the amount of shock being absorbed. An additional brake mechanism prevents the lifeline from freely being drawn from the housing in the event of a complete failure of the mechanism thereof.
Patent CA-2258161-C (CA)
Title: Powder metallurgical body with compacted surface
Inventor: CARLBAUM NILS
IPC: B22F5/08
Filed: 1997-06-12
Granted: 2007-01-23
Abstract: The present invention concerns compacted and optionally presintered bodies, which are prepared from metal powders and which have densified surfaces, obtained by shot peening or rolling.
Patent CA-2258320-C (CA)
Inventor: KELEMEN PETER
IPC: C08F2/18
Filed: 1997-07-03
Granted: 2006-10-10
Abstract: Process for the preparation of vinylarene polymer particles, which process comprises mixing a polar polymer capable of absorbing water, with vinylarene monomer, pre-polymerising vinylarene monomer;  suspending the pre-polymerised mass; and polymerise the suspended particles further. This case further relates to vinylarene polymer particles containing polar polymer and from more than 3 to 40 wt.% of water, and to foamed articles.
Patent CA-2265024-C (CA)
Inventor: TSAI CHONG-SHIEN
IPC: E04H9/02
Filed: 1999-03-08
Granted: 2004-09-28
Abstract: A disturbance-proof device connected between two vertically spaced beams for absorbing shocks upon a disturbance, includes a flat top plate, a flat bottom plate, and a plurality of flat supporting plate connected in parallel between the flat top plate and the flat bottom plate, each flat supporting plate having a substantially V-shaped profile with its width gradually reducing from the flat top plate toward the flat bottom plate, a flat top flange welded to the flat top plate, and a round rod at its bottom side inserted in between two parallel locating blocks raised from the bottom plate.
Patent CA-2270890-C (CA)
Title: Method and apparatus for measurement of peak throughput in packetized data networks
Inventor: TROUTMAN ROBERT
IPC: H04L12/24
Filed: 1997-11-12
Granted: 2002-01-15
Abstract: A system for measuring peak throughput in packetized data networks includes a remote monitoring probe (12) and console (16). The probe (12) is connected to the network to monitor network activity, while the console is in communication with the probe via the network or other communications medium. The probe maintains a plurality of counters associated with different ranges of percentage of utilization of network bandwidth. For each sampling interval, the probe measures the network and individual network circuit bandwidth utilization and increments the appropriate counters associated with the percentage ranges encompassing the measured bandwidth utilizations. The console polls the probe for the percentage counter data to display the network bandwidth utilization in the form of a bar graph and pie chart. The network bandwidth may then be adjusted based on the displayed data.
Patent CA-2274467-C (CA)
Inventor: LUDDECKE ERIK
IPC: A23K20/179
Filed: 1997-12-01
Granted: 2006-08-01
Abstract: In a process for producing a stable, aqueous dispersion or a stable, water-dispersible dry xanthophyl] powder: (a) a molecular disperse solution of at least one xanthophyll if required together with an emulsifier and/or an edible oil is produced in a water-miscible organic solvent or in a mixture of water and a water-miscible organic solvent, at temperatures above 30 °C; (b) this solution is mixed with an aqueous solution of a mixture of protective colloids; (b1) the mixture containing at least one low molecular protective colloid component and at least one high molecular protective colloid component whose molecular weights differ by at least 10,000; (b2) the solvent component being convened into the aqueous phase and the hydrophobic phase of the xanthophyll being produced as a nanodisperse phase; and (c) if required, the thus obtained dispersion is freed from solvent and water to produce a water-dispersible dry powder and dried, if required in the presence of a coating material.
Patent CA-2277627-C (CA)
Title: Annular fluid manipulation in lined tubular systems
Inventor: TAYLOR JACK C
IPC: E21B17/18
Filed: 1999-07-16
Granted: 2003-10-07
Abstract: A lined tubular system and method provides for the manipulation and control of annular fluids tubular and the liner. This structure allows for profiling of the exterior wall of a liner such that one or more continuous channels are provided along the length of the lined tubular system. The system may also include one or more non-crushable members or tubes between the liner's exterior surface and host tubular's interior surface. Rounded, granular particles in the annulus between liner and host may provide an alternative path for fluid flow. The particles may be uniformly or randomly distributed in the annulus.
Patent CA-2277790-C (CA)
Title: Method for operating a pem fuel cell installation and pem fuel cell installation
Inventor: STENGER HERBERT
IPC: H01M8/04089
Filed: 1998-01-07
Granted: 2004-04-06
Abstract: The present invention relates to a method for operating a PEM fuel cell installation (2) containing at least one PEM fuel cell block (4), to which a torque-controlled compressor (8) is series connected for supplying the air volume flow V L. In order to adjust the electric current (I) of the PEM fuel cell block (4) to a set value I SN, the torque n of the compressor (8) is regulated to a theoretical value n SN, whereby said value n SN is derived from the preset value I SN of the electric current, thereby ensuring easy control of the air volume flow V L to the PEM fuel cell block (4) with few industrial devices.
Patent CA-2285919-C (CA)
Inventor: VALKIRS GUNARS E
IPC: C12Q1/68
Filed: 1998-04-03
Granted: 2009-06-02
Abstract: This invention provides method, compositions, and kits for detecting the presence of toxigenic strains of C. difficile in a biological sample. One embodiment provides methods for C. difficile detection that involve assaying for both C. difficile glutamate dehydrogenase and C. difficile toxin A or toxin B. In another embodiment, the invention provides a highly sensitive assay for C. difficile toxin A that is useful for determining whether a C. difficile strain is toxigenic. This embodiment involves binding of toxin A to a moiety that reversibly binds to capture moiety present on a magnetic bead. A magnetic field is applied to the sample to concentrate the toxin A, after which the magnetic beads are dissociated and removed from the solution to obtain a highly concentrated preparation of toxin A, thus making possible a very sensitive assay.
Patent CA-2286091-C (CA)
Title: Polymer-platinum compounds
Inventor: DUNCAN RUTH
IPC: A61K31/28
Filed: 1998-04-15
Granted: 2010-07-06
Abstract: A polymer-platinum compound for use in tumor treatment is described. The compound is composed of a polymer backbone having platinum-containing side chains spaced along the polymer backbone. The side chains are composed of an oligopeptide attached at one end to the backbone and at the other end to the platinum compound.
Patent CA-2288140-C (CA)
Title: Farnesyltransferase inhibiting quinazolinones
Inventor: ANGIBAUD PATRICK RENE
IPC: C07D401/06
Filed: 1998-04-17
Granted: 2007-04-03
Abstract: This invention concerns compounds of formula (I), the pharmaceutically acceptable acid addition salts and the stereochemically isomeric forms thereof, wherein the dotted line represents an optional bond; X is oxygen or sulfur; R1 and R2 each independently are hydrogen, hydroxy, halo, cyano, C1-6alkyl, trihalomethyl, trihalomethoxy, C2-6alkenyl, C1-6alkyloxy, hydroxyC1-6alkyloxy, C1-6alkyloxyC1-6alkyloxy, C1-6alkyloxycarbonyl, aminoC1-6alkyloxy, mono- or di(C1-6alkyl)aminoC1-6alkyloxy, Ar1, Ar1C1-6alkyl, Ar1oxy, Ar1C1-6alkyloxy; or when on adjacent positions R1 and R2 taken together may form a bivalent radical; R3 and R4 each independently are hydrogen, halo, cyano, C1-6alkyl, C1-6alkyloxy, Ar1oxy, C1-6alkylthio, di(C1-6alkyl)amino, trihalomethyl, trihalomethoxy; R5 is hydrogen, halo, cyano, optionally substituted C1-6alkyl, C1-6alkyloxycarbonyl or Ar1; or a radical of the formula -OR10, -SR10, -NR11R12; R6 is an optionally substituted imidazolyl moiety; R7 is hydrogen or C1-6alkyl provid ed that the dotted line does not represent a bond; R8 is hydrogen, C1-6alkyl or Ar2CH2 or Het1CH2; R9 is hydrogen, C1-6alkyl, C1- 6alkyloxy or halo, or R8 and R9 taken together may form a bivalent radical; Ar1 and Ar2 are optionally substituted phenyl and Het1 is optionally substituted pyridinyl; having farnesyltransferase inhibiting activity; their preparation, compositions containing them and the ir use as a medicine.
Patent CA-2288793-C (CA)
Inventor: WOOTTON DAVID M
IPC: C12N5/071
Filed: 1998-05-05
Granted: 2006-02-14
Abstract: The present invention comprises a poly(vinyl alcohol) hydrogel construct having a wide range of mechanical strengths for use as a human tissue replacement. A process in connection with the present invention eliminates any step involved with dehydration of the hydrogel prior to implantation thereof. The hydrogel construct may comprise a tissue scaffolding, a low bearing surface within a joint, or any other structure which is suitable for supporting the growth of tissue.
Patent CA-2296984-C (CA)
Inventor: TULOUP REMY
IPC: A61Q19/00
Filed: 2000-01-26
Granted: 2006-04-18
Abstract: Hydroxyphenyl aldoxime or ketoxime derivatives are used in cosmetic compositions for depigmenting human skin or hair.  The hydroxyphenyl aldoxime or ketoxime derivatives are of formula (I).  R = H; 1-24C linear, branched or cyclic (un)saturated alkyl optionally substituted by OH; aryl optionally substituted by OH, NH2, COOH, NO2, OR5, COOR6 and/or NR7R8; or COR9;  R5, R6 = 1-24C alkyl;  R7, R8 = H or 1-24C alkyl;  R9 = 1-24C linear, branched or cyclic (un)saturated alkyl optionally substituted by OH; or aryl optionally substituted by OH, NH2, COOH, NO2, OR5, COOR6 and/or NR7R8;  R1, R2 = H; 1-24C linear, branched or cyclic (un)saturated alkyl optionally substituted by OH; aryl optionally substituted by OH, NH2, COOH, NO2, OR5, COOR6 and/or NR7R8; OH; OQ1; COQ2; COOQ3; NQ4Q5; CONQ6Q7; SQ8; CH2OQ9; or cyclic or acyclic carbohydrate or amino acid residues;  Q1-Q9 = H; 1-24C linear, branched or cyclic (un)saturated alkyl optionally substituted by OH; or aryl optionally substituted by OH, NH2, COOH, NO2, OR5, COOR6 and/or NR7R8;  R3 = H; 1-24C linear, branched or cyclic (un)saturated alkyl optionally substituted by OH; or aryl optionally substituted by OH, NH2, COOH, NO2, OR5, COOR6 and/or NR7R8.
Patent CA-2298816-C (CA)
Title: Tensioner for the header of a harvester
Inventor: MCCREDIE PAUL JOHN
IPC: A01D41/14
Filed: 2000-02-15
Granted: 2003-06-10
Abstract: A chain or belt tensioner is provided in a header for a harvester having a pair of rollers, each supported on separate pivot arms and engagable with the slack and taut strands of the chain or belt. The pivot arms are mounted about a common pivot and are spring biased into engagement with the chain or belt by a common spring. When the drive direction is reversed, the normally slack side of the chain becomes taut and assumes a straight-line position between the sprockets or sheaves. The pivot arms will rotate about the pivot and the pivot arm on the strand that has now become slack will rotate to tension the slack strand. The biasing spring coupled to the two pivot arms biases the rollers against the two strands of the chain and provides a fixed tensioning force on the chain that does not require adjustment.
Patent CA-2311239-C (CA)
Inventor: NGAI JOHN
IPC: C12Q1/68
Filed: 1998-12-14
Granted: 2004-03-16
Abstract: L'invention concerne des méthodes et compositions destinés à la définition d'un type cellulaire, les méthodes consistant généralement: (a) à définir une sous-population hétérogène de cellules dans un organisme; (b) à créer une banque complète à partir de l'ARN messager de la sous-population de cellules; (c) à amplifier l'ARN messager d'une cellule unique de la population; et (d) à sonder la banque avec l'ARN messager amplifié pour définir une expression génique de la cellule, l'expression génique de la cellule permettant d'obtenir un marqueur définissant le type cellulaire.
Patent CA-2317496-C (CA)
Title: The preparation of novel gels for the purification of non-polar extractives
Inventor: SARR A BACHIR
IPC: A61K36/899
Filed: 1999-01-11
Granted: 2004-12-07
Abstract: A process is described for the preparation of electrostatically-linked, aliphatic- or alicyclic-substituted anionic or cationic polysaccharide gels from readily available macroporous ionic polysaccharide chromatographic media. Examples of such macroporous ionic polysaccharide chromatographic media include diethylaminoethyl (DEA.E), quaternary aminoethyl (QAE) and sulfopropyl (SP) substituted polysaccharide gels. These novel gels are used for the isolation, recovery and purification of non-polar extractives using one or more extracting solvents from the group of lower alcohols, ketones, and water. The non-polar extractives may include one or more of the classes alk(en)lyresorcinols, steroid, triterpenoid, cardiac glycosides and saponins, steryl ferulates and other phenolic acid conjugates, flavonoids, polar lipids, alcohol-soluble antimicrobials, prolamines and other alcohol-soluble proteolipid complexes. The process uses hydrophobic interaction chromatography, and involves the steps of absorption, washing and recovery, wherein the extractives are absorbed and desorbed in the presence of and as a result of the concentration and selection of the organic solvent. The method further includes the optional step of regenerati ng the gel matrix for further use.
Patent CA-2318491-C (CA)
Title: Compositions granulees presentant une aptitude amelioree a la dissolution
Inventor: MORT PAUL R III
IPC: C11D3/10
Filed: 1998-01-13
Granted: 2005-01-04
Abstract: La présente invention concerne une composition détergente présentant des propriétés physiques, sélectionnées de façon optimale, de différents ingrédients détergents particulaires. La composition selon l'invention comprend d'environ 1 % à environ 50 %, par rapport au nombre total de particules séparées contenues dans la composition, de particules sensiblement collantes contenant des fractions pondérales faibles à élevées de tensioactifs sensiblement collants. En outre, les particules sensiblement collantes présentent une taille, une distribution granulométrique et une masse volumique apparente spécifiée. De plus, la composition comprend plus de 35 %, par rapport au nombre total de particules séparées contenues dans la composition, de particules sensiblement non collantes présentant une taille, une distribution granulométrique et une masse volumique apparente spécifiées. La quantité totale de tensioactifs, c'est-à-dire à la fois des tensioactifs collants et des tensioactifs non collants, contenue dans la composition est d'au moins 15 % en poids, par rapport à la composition.
Patent CA-2338790-C (CA)
Inventor: HUGIN WALTER
IPC: E06B9/00
Filed: 1999-07-21
Granted: 2004-06-01
Abstract: In a drive device which is especially suitable for moving and turning the slats of a blind in a runner and in which the rotational movement of a drive wheel (2) can be alternately transmitted to a turning drive means effecting the rotational movement of the slats and to a transport drive means effecting the movement of the salts in the runner, the drive wheel (2) is driven by electric motor and, in addition, the shift of the change gear from its one shifting position into the other shifting position is effected by an electrical signal. For this purpose, a toothed sleeve (3) driving the transport drive means and a toothed sleeve (4) driving the turning drive means is alternately coupled to a drive tube (1), which can be driven via the drive wheel (2), in dependence on the relative rotational position of a reversing shaft (10) in the drive tube (1) via locking members (7, 8) arranged on its periphery. A brake disk (24) of magnetizable material, which faces an electromagnet (25), is mounted on the reversing shaft (10). When the electromagnet (25) is not excited, the reversing shaft (10) is rotationally entrained by the drive tube (1) and when the electromagnet (25) is excited, the brake disk (24) is attracted, the reversing shaft (10) thus held in its position and the drive tube (1) can be rotated with respect to the reversing shaft (1) against a restoring force.
Patent CA-2341472-C (CA)
Title: Systeme de refroidissement d'un rotor supraconducteur
Inventor: GAMBLE BRUCE B
IPC: H01L39/04
Filed: 1999-04-26
Granted: 2008-10-14
Abstract: L'invention se rapporte à un système (10) de refroidissement d'un dispositif supraconducteur, qui comporte un cryoréfrigérateur (12) disposé dans un bâti de référence fixe et un système (11) de circulation fermée, externe au cryoréfrigérateur (12). Ledit système (11) de circulation fermée assure l'interface entre le bâti de référence fixe et un bâti de référence rotatif dans lequel est placé le dispositif supraconducteur. Le procédé de refroidissement d'un dispositif supraconducteur consiste à disposer un cryoréfrigérateur (12) dans un bâti de référence fixe et à transférer la chaleur d'un dispositif supraconducteur situé dans le bâti de référence rotatif vers le cryoréfrigérateur (12) par l'intermédiaire d'un système (11) de circulation fermée, externe au cryoréfrigérateur (12). Ledit système de circulation fermée assure l'interface entre le bâti de référence fixe et le bâti de référence rotatif.
Patent CA-2344010-C (CA)
Inventor: PETTY JEFFREY
IPC: B05D7/24
Filed: 2001-04-17
Granted: 2009-09-08
Abstract: A wear resistance coated bell atomizer (32) and method for making same. The coating applied to the outer surface of a bell cup (36) of the bell atomizer (32) is preferably a silicon-doped amorphous carbon coating. This silicon-doped amorphous carbon coating significantly increases the usable life of a bell cup (36) in a bell atomizer paint system (10) by limiting the effects of abrasive materials on the wearable surfaces of the bell cup (36), including the top serrated edges (46), which may negatively affect the performance of uncoated bell atomizer spray equipment.
Patent CA-2344583-C (CA)
Title: Fuel activating device
Inventor: WEY ALBERT C
IPC: C10G32/00
Filed: 1999-09-28
Granted: 2007-11-20
Abstract: This invention describes a fuel-activating device comprising a housing (12; 42) with a far infrared ray emitting body (11; 43) placed therein that provides for enhanced combustion of liquid fuels. The device can be installed externally on the fuel line (32; 50) before the point where fuel flows into a carburetor or fuel injection system or within the fuel line (32; 50). The result is improved fuel burning efficiency, increased engine power, and reduced harmful emissions.
Patent CA-2345798-C (CA)
Title: Polyolefin graft copolymers made with fluorinated monomers
Inventor: DENICOLA ANTHONY J JR
IPC: C08F214/18
Filed: 2000-07-24
Granted: 2007-05-08
Abstract: A fluorine-containing graft copolymer is made from a backbone of an olefin polymer material to which is graft polymerized a) at least one gaseous fluorinated monomer such as vinylidene fluoride, b) at least one fluorinated acrylic acid or ester, c) a mixture of (a) and (b), or d) a mixture of (a) and/or (b) and a non- fluorinated monomer such as methyl methacrylate. An organic peroxide or a polymeric peroxide is used as the initiator for the graft polymerization process. The graft copolymers have improved surface properties and oxygen barrier properties, and improved thermal stability.
Patent CA-2346378-C (CA)
Title: Articulating spinal disc prosthesis
Inventor: SHELOKOV ALEXIS P
IPC: A61F2/00
Filed: 1999-10-26
Granted: 2007-07-31
Abstract: The artificial spinal disc of the invention is intended to articulate in a manner resembling a human knee articulation. The artificial spinal disc (20) is comprised of two plates (21, 22) each having a planar outer surface and an articulating inner surface. The planar outer surfaces contact adjacent inferior (71a) and superior (72a) surfaces of two adjacent vertebrae having the spinal disc implanted therebetween. The planar surfaces of the plates are affixed to the adjacent vertebrae. The articulating surfaces (25, 26) of the artificial spinal disc will be generally bimodal-shaped such that a first articulating surface (25) will have two convex shaped articulating portions and the second articulating surface (26) will have two concaved shaped articulating portions. The concave and convex shaped portions of the respective plates will be generaly complementary. The articulation of the artificial spinal disc will generally resemble that of a human knee.