baber/WOPTO huggingface dataset:
Patent CA-2331353-A1 (CA)
Title: Porous catalytic combustion burner and flask equipped with a burner of this kind
Inventor: LEHOUX JANNICK
IPC: A01M1/20
Filed: 1999-04-20
Abstract: The invention concerns a catalytic combustion afterburner (3) made of porous material, comprising in its lower part (3a) a substantially axial cavity (6) for receiving a taper (4) designed to convey to the burner (3) a combustible liquid (2), and in its upper part (3b) an annular peripheral zone (7) bearing a catalyst and enclosing a central zone (40) without catalyst forming a vaporising zone. Said afterburner comprises in its upper part (3b) an open duct (8), communicating the cavity (6) upper part (24) with the outside air.
Patent CA-2334378-A1 (CA)
Title: Arrangement, system and method relating to data/telecommunication
Inventor: HELANDER LARS-ERIK
IPC: H04L12/54
Filed: 1999-06-01
Abstract: The present invention relates to an arrangement, a system and a method for distribution of messages in a communication system supporting communication of packet data. The arrangement includes a number of processing means (1, 2, 3) communicating with each other. Each processing means (1, 2, 3) is connected to all other processing means (1, 2, 3) via at least two physically separate networks (N1, N2). For each processing means (1, 2, 3) information holding means are provided for keeping information about all communication paths to all other processing means (1, 2, 3). For obtaining information, first messages (M121, M122, M131, M132) are sent from each processing means to all other processing means using all of said at least two networks (N1, N2).
Patent CA-2339774-A1 (CA)
Title: Selectively reinforced multi-ply food container
Inventor: TOUSSANT JOHN WILLIAM
IPC: B31B50/59
Filed: 1999-08-27
Abstract: A multi-ply food container (10). The multi-ply food container (10) has selective reinforcement (24) at the center of the food container (10), and regions of a raised side wall (16) and/or rim (18) which are not reinforced. The reinforcement is preferably done by joining an additional ply (24) to the food container (10).
Patent CA-2342220-A1 (CA)
Title: Papermaking fabric seam with additional threads in the seam area
Inventor: HERRING SAMUEL H
IPC: D03D11/00
Filed: 1999-08-30
Abstract: An open ended papermaker's fabric (1) of a type woven from a longitudinal thread system (10-25) and a transverse thread system (2-5) and including a plurality of seam loops (35-1 to 35-8) at each end of the fabric. A seam zone (40) exists at each end of the fabric between the respective seam loops and the last thread (2) of the transverse thread system. At least one additional transverse thread (50, 51) is interwoven in at least one seam zone (40) with the longitudinal thread system to provide increased surface contact for better batt adhesion in the seam zone.
Patent CA-2342496-A1 (CA)
Title: Twisted wordline straps
Inventor: KURJANOWICZ WLODEK
IPC: H01L27/108
Filed: 2001-03-30
Abstract: A high density wordline packing arrangement is obtained by routing three primary metal-2 wordline straps in the same space as four polysilicon wordlines, and routing the fourth wordline strap in a metal-4 layer over the primary metal-2 wordline straps. Stitches in metal-3 connect metal-2 primary wordline straps to metal-4 wordline straps.  Therefore, contact spacing and metal pitch limitations are relaxed to allow four metal wordline straps to occupy the same pitch as four polysilicon wordlines. The wordlines are twisted to keep them fully balanced and to minimise coupling between wordline straps and neighbouring power and signal lines. Hence, a smaller memory cell array can be formed according to the wordline packing arrangement of the present invention.
Patent CA-2345567-A1 (CA)
Title: A permanently emplaced electromagnetic system and method for measuring formation resistivity adjacent to and between wells
Inventor: NICHOLS EDWARD
IPC: G01V3/28
Filed: 2001-04-30
Abstract: Systems and methods for determining characteristics of geologic formations between conductively lined wellbores. At least one transmitter is axially disposed at a selected depth in a first wellbore and is attached to an external surface of a conductive liner.  At least one receiver is axially disposed at a selected depth in a second wellbore and is attached to an external surface of a conductive liner. Both the transmitter and the receiver are attached to a surface control station. The transmitter generates a first magnetic field, and a formation magnetic field induced by the first magnetic field is detected by the receiver. The detected formation magnetic field is used to determine characteristics of the geologic formations.
Patent CA-2346291-A1 (CA)
Title: Liberation controlee d'acide acrylique ou methacrylique/l-dopa, d'acide acrylique ou methacrylique/l-$g(a) methyldopa, d'acide acrylique ou methacrylique/carbidopa a partir de copolymeres et leurs associations
Inventor: DE ANDRADE CRISTINA TRISTAO
IPC: A61K47/48
Filed: 2000-08-02
Abstract: La présente invention concerne des systèmes d'administration de médicaments dirigés permettant de libérer de manière régulée L-dopa, carbidopa, L-.alpha.-méthyldopa et/ou leurs associations et d'éliminer, ou au moins réduire, les effets secondaires délétères de ces médicaments. Des copolymères actifs sur le plan biologique présentant des caractéristiques directionnelles par rapport à la muqueuse digestive comprennent L-dopa, carbidopa ou L-.alpha.-méthyldopa combinés chimiquement avec l'acide poly(acrylique) ou l'acide poly(méthacrylique) acceptables sur le plan biologique. On obtient ces copolymères par un processus consistant à: (a) faire réagir L-dopa, carbidopa ou L-.alpha.-méthyldopa avec un agent de chloration; (b) mettre à réagir le produit de (a) et l'acide poly(acrylique) ou l'acide poly(méthacrylique) en présence d'un catalyseur approprié; (c) laver le copolymère obtenu dans (b) avec un solvant organique approprié et le sécher jusqu'à obtenir un poids constant. Les produits pharmaceutiques hypotenseurs à libération contrôlée comprennent au moins un copolymère biologiquement actif choisi dans le groupe comportant l'acide poly(acrylique/L-.alpha.-méthyldopa), l'acide poly(méthacrylique/L-.alpha.-méthyldopa), l'acide poly(acrylique/carbidopa), l'acide poly(méthacrylique/carbidopa) ou des combinaisons de ceux-ci et un excipient acceptable sur le plan pharmaceutique. Ces produits pharmaceutiques à libération contrôlée comprenant au moins un copolymère actif sur le plan biologique choisi dans le groupe comprenant l'acide poly(acrylique/L-dopa), l'acide poly(méthacrylique/L-dopa), l'acide poly(acrylique/carbidopa), l'acide poly(méthacrylique/carbidopa) ou des associations de ceux-ci acceptables sur le plan pharmaceutique ainsi qu'un excipient acceptable sur le plan pharmaceutique, sont utilisés dans le traitement thérapeutique du syndrome de Parkinson.
Patent CA-2350108-A1 (CA)
Inventor: AGTERBERG JOANNE C
IPC: C25B1/02
Filed: 2001-06-12
Abstract: As the Olde English way of spelling lightning in the title suggests, the problem of harnessing the power of lightning requires an alternate approach. Within the combined fields of chemistry and physics, this apparatus has met the requirement of adjusting to the highly variable nature of lightning in that it requires an open system rather than a closed battery.  Endothermic reactions can be conducted using the renewable energy source of lightning strikes conducted through a medium form lightning rod to ground or vise vera. Hydrolysis would be the most obvious reaction to perform for producing the energy carrier, hydrogen, for fuel cells. The desired gases fill tanks or segmented pipes through the resultant pressure produced by the liquid to gaseous state change.
Patent CA-2352130-A1 (CA)
Inventor: CAMPBELL RICHARD W
IPC: C08K7/06
Filed: 1999-11-24
Abstract: Resins suitable for use in compression molding processes are prepared by mixing between about 10 and 30 weight % of chopped partially carbonized fibers, i.e. fibers having a carbon content of between about 70 to 95 % by weight and an average size of about 100 .mu.m, with compression grade moldin g resins. Typically the compression grade molding resins are about 100 .mu.m. When chopped carbon fibers of reduced conductivity are used the curve obtain ed by plotting the resistivity against the concentration of carbon fibers is le ss steep in the critical regions of interest (i.e., between about 1010 and 1012  and between about 106 and 109) than the curve is obtained when high conductivity fibers are used. It has been observed that even if some dielectric breakdown occurs, the connected fibers are not as conductive and the effect has been found not to be as significant as is the case with the usual carbon fibers which have maximized conductivity.
Patent CA-2354871-A1 (CA)
Title: Speech synthesis using concatenation of speech waveforms
Inventor: RUTTEN PETER
IPC: G10L13/06
Filed: 1999-11-12
Abstract: A high quality speech synthesizer in various embodiments concatenates speech waveforms referenced by a large speech database. Speech quality is further improved by speech unit selection and concatenation smoothing.
Patent CA-2355318-A1 (CA)
Title: Remote proxy system and method
Inventor: KRAMER MICHAEL
IPC: G06F13/42
Filed: 1996-03-26
Abstract: An interface between a protected computer or computer network (52) and the World Wide Web (WWW) (68). The interface comprises a split proxy system (56, 66) that encapsu-lates TCP/IP transmissions into a script transmission which is not subject to problems in high latency systems, thereby greatly improving WWW access, via a wireless modem or other low-bandwidth communications network. The split proxy interface (56, 66) also provides compression, encryption and filtering ca-pabilities and allows receipt of unsolicited transmissions from the service provider for such purposes as automatically updat-ing or configuring WWW access software.
Patent CA-2355571-A1 (CA)
Title: Deep well instrumentation
Inventor: HARKINS GARRY O
IPC: E21B47/09
Filed: 2001-08-22
Abstract: In a hydrocarbon(oil) well an instrumentation line can be introduced down the well bore 12 by means of control line 16 in the form of pressure tubing conduit fixed on the outside of intermediate casing 14 and set in cement slurry 21 between the intermediate casing 14 and the surrounding rock 13 and reaching to the production zone of interest 15 where hydrocarbon is to be found. A hollow primary member 18 accepts the distal end of the control line 16 at the end of the intermediate casing 19. A secondary member 22 has a terminal control line 27 (sealed at its far end) attached on its outer surface. When in place, the secondary member 22 extends into and through the zone of interest 15. When the secondary member 22 is lowered through the primary member 18, its top end is lowered onto the bottom end of the primary member 18. Coupling means 20 24 automatically engage and angularly orientate so that the top of the terminal control line 27 couples to and seals with the distal end of the control line 16 to form a continuous high pressure tube from the well head 10 to the very bottom of the well, through which a fibre optic instrumentation line can be threaded. An alternative embodiment has a loop 26 of control line on the secondary member 22, coupling to a pair of control lines 16 to form a continuous loop of control line wherein a fibre optic instrumentation line can be passed from the surface down one of the control lines 16, around the loop 26, and back up to the surface in the other of the control line 16.
Patent CA-2356173-A1 (CA)
Inventor: WHITSON ROBERT L
IPC: E04C1/00
Filed: 2001-08-28
Abstract: The present invention relates to an interlocking masonry wall block having two spaced lugs or projections and a cooperating recess or channel that enable like-shaped blocks to be stacked in a staggered relation to form straight and serpentine walls that are particularly suited for landscaping applications. In one embodiment, the lugs are located proximal the sides of the block and extend from an upper surface of the block.  The channel is formed in a lower surface of the block. In another embodiment, the lugs are located at the rear corners of the block and extend below the lower surface of the block. The recess is formed in the rear end of the block between the lugs. Like-shaped blocks are stacked in a staggered relation so that each block is stacked atop two immediately lower blocks. In each embodiment, the lugs and their cooperating channel or recess define a setback dimension.
Patent CA-2358541-A1 (CA)
Title: Method for producing a resealable pouch
Inventor: HOLLOWAY STEPHEN JOHN
IPC: B31B50/64
Filed: 2000-01-06
Abstract: A method of producing resealable filled pouches comprises the steps of (i) folding across part of its original width a length of thermoplastics sheet to produce a folded sheet having a fold portion running lengthways of the sheet having a folded edge which fold portion extends across part of the original width of the sheet and a non fold portion extending from the fold portion to the other edge of the sheet; (ii) in a direction at right angles to the folded edge and at regular intervals along the folded edge, welding the fold portion together to form individual pockets of equal size having welded wall edges along the length of the sheet; (iii) cutting the sheet, across the width of the sheet and along the line of the welds, to produce individual pouches each having a mouth, welded edges and an extended flap portion, and (iv) filling each pouch, through its mouth, with desired contents and folding the extended flap over the mouth so as to form the flap around the pouch. At the time of forming the fold portion of the sheet, a resealable fastener is located on the sheet in a direction parallel to the edges of the sheet and in a position predetermined to be immediately below the mouths of the pouches wherein the resealable fastener comprises two interengaging closure strips in engaged position, each closure strip of which having a base portion. The base portions of each of the two interengaging closure strips are, while the strips are engaged with each other, welded to the facing surfaces of the sheet respectively in the fold portion, and after welding of the resealable fastener the closure strips are disengaged from each other, the closure strips being made to engage with each other after the filling of the pouch and before forming the extended flap over the pouch.
Patent CA-2360176-A1 (CA)
Title: Water-insoluble hydrophilic marine coating and methods
Inventor: LAFRENIERE DONALD R T
IPC: B05D5/00
Filed: 1999-10-25
Abstract: A composition for coating an aqueous-solution-contacting surface for reducing kinematic friction, preventing corrosion and blistering, reducing water impact noise, and absorbing water shock includes a polymer including a polyhydroxystyrene of the novolak type. In alternate embodiments the composition also includes an antifouling agent, a gel coating material, or an epoxy. A method includes coating an aqueous-solution-contacting surface with the composition, preferably in a solution in an appropriate solvent, such as a low-molecular-weight oxygenated hydrocarbon such as alcohol or ketone. Application of the composition to a water-submersible or -contacting surface results in a hydrophilic surface having a considerably reduced contact angle, permitting increased speed and improving fuel efficiency.
Patent CA-2361312-A1 (CA)
Title: Transparent supermicrocellular polymer foams and method for their manufacture
Inventor: TAN SENG C
IPC: C08J9/12
Filed: 2000-01-19
Abstract: A novel class of polymeric foams comprising submicron cells and a process for their production is described. The polymers are preferably high glass transition materials and the process comprises saturating a consolidated polymer shape with an inert gas at a temperature above the glass transition temperature of the polymer and under a pressure of at least 9000 psi for a period adequate to dissolve the gas in the polymer shape and then controllably cooling the polymer shape to produce the submicron cell structure.
Patent CA-2362417-A1 (CA)
Inventor: SPRINGER NATHAN MICHAEL
IPC: C12N15/82
Filed: 2000-03-10
Abstract: The present invention provides nucleic acids encoding polypeptides which encode a DNA methyltransferase. These nucleic acids can be used to stabilize transgene expression in transgenic plants, to alter the yield or biochemical qualities of plants to silencing targeted genes in plants <i>in vivo</i>.
Patent CA-2362438-A1 (CA)
Title: Thermally-responsive record material
Inventor: DEBRAAL JOHN CHARLES
IPC: C07C43/225
Filed: 2000-12-19
Abstract: The present invention is a novel thermally-responsive record material comprising a substrate having provided thereon in substantially contiguous relationship an electron donating dye precursor, an acidic developer materia l, a compound of formula (I) wherein P is selected from (II) and (III), wherein  R~1?, R~2? and R~3? are independently selected from hydrogen, alkyl, alkoxy,  aryl, aralkyl, aralkoxy, halogen, and alkoxyalkoxy; wherein R~4? is independently selected from alkoxyalkyl, alkoxyalkoxy, and aralkoxyalkoxy, a nd a suitable binder therefor. In the context of the present invention the alky l moieties in the alkyl, aralkyl, aralkoxy, alkoxyalkyl, alkoxyalkoxy and aralkoxyalkoxy preferably are eight carbons or less, and more preferably fro m one through four carbons. Substituents on aryl moieties in aryl, aralkyl, aralkoxy, and aralkoxyalkoxy groups can include hydrogen, alkyl, alkoxy and halogen. The alkyl group in these substituents also is eight carbons or less , and more preferably from one through four carbons. The thermally responsive record material of the invention has the unexpected and remarkable propertie s of enhanced image intensity or density, and/or improved thermal response.</S DOAB>
Patent CA-2364011-A1 (CA)
Inventor: OH JAE-SEUNG
IPC: C08F4/659
Filed: 2000-03-03
Abstract: The present invention relates to a metallocene compound and the olefin polymerization using the same, particularly to a metallocene compound and the olefin polymerization using this compound on which supported catalysts are easily prepared by the reaction of the ligand containing - (CR1 2)a-O-SiR b Y c ligand (wherein each Y, which can be the same as or different from other Y, is a hydrogen, halogen, alkoxy, aryloxy, amide, or silyloxy radical, each R1, which can be the same as or different from other R1, is a hydrogen radical, or an alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical having from 1 to 40 carbon atoms, each R, which can be the same as or different from other R, is an alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical having from 1 to 40 carbon atoms, a is an integral number from 1 to 40, c is 1, 2, or 3, and the sum of b and c is 3) with a support. Furthermore, the present invention relates to a supported metallocene catalyst using this metallocene compound and the olefin polymerization using the same. The metallocene compounds in this invention have superior characteristics in the preparation of supported catalyst due to the high reactivity with the support and minimal side reactions during the anchoring process. In addition, the olefin polymerization process employing the supported catalyst in this invention proceeds without fouling in the reactor, and the morphology and bulk density of the polymer produced are better than that produced by the conventional method.
Patent CA-2364265-A1 (CA)
Inventor: SUTORIS HEINZ FRIEDRICH
IPC: C07C15/46
Filed: 2000-02-25
Abstract: L'invention concerne un procédé de préparation en continu de styrène à partir d'un mélange à base de styrène, par distillation dudit mélange dans une cascade de n colonnes de distillation. Selon ce procédé (i) un flux contenant un système stabilisant est introduit dans la première colonne et/ou un système stabilisant est introduit dans au moins une colonne de distillation montée en amont de la énième colonne de distillation, ledit système stabilisant contenant des radicaux N-oxyle; (ii) une fraction à point d'ébullition élevé qui contient le système stabilisant et dont le point d'ébullition est supérieur à celui du styrène est enrichie dans le bas de la énième colonne de distillation; (iii) un courant partiel de la fraction à point d'ébullition élevé est recyclé et est introduit dans au moins une colonne de distillation montée en amont de la énième colonne de distillation; (iv) la quantité résiduelle de la fraction à point d'ébullition élevé est enlevée du processus.
Patent CA-2364319-A1 (CA)
Inventor: TUNKEL ROMAN N
IPC: F03D1/06
Filed: 2000-02-25
Abstract: An acoustic jet disposed within an aerodynamic surface (9), such as a wing or a blade, has a resilient wall (16) supporting a mass (17). Vibrations of the blade cause oscillatory pressure waves within the acoustic jet, the nozzle (20) of which directs fluid particles having high momentum flux essentially tangentially into the boundary layer of the suction surface (22) of the blade, the resonant cavity of the synthetic jet being replenished with particles having low momentum flux drawn from the flow in a direction normal to the surface, thereby to provide a net time averaged flow of fluid particles of increasing momentum flux into the boundary layer to defer or prevent the onset of boundary layer separation. Single and double chambers drive nozzles separated streamwise or spanwise on airfoils (blades, wings) and fuselages. Applications include helicopters, airplanes, air moving machines and wind energy electric power generators.
Patent CA-2367108-A1 (CA)
Title: Methode utilisee pour inhiber une proteine chaperonne
Inventor: MARCU MONICA G
IPC: A61P43/00
Filed: 2000-03-10
Abstract: La présente invention concerne une méthode utilisée pour empêcher une protéine chaperonne de se fixer à sa protéine client ou à son polypeptide client. La méthode implique de mettre en relation un coumarinique ou un dérivé de coumarinique avec une protéine chaperonne, de telle sorte que le coumarinique ou le dérivé de coumarinique se fixe sur la protéine chaperonne, empêchant ainsi la protéine chaperonne de se fixer sur sa protéine client ou son polypeptide client.
Patent CA-2367503-A1 (CA)
Inventor: NIIRANEN HEIKKI
IPC: D04H1/72
Filed: 2000-04-07
Abstract: The invention relates to a distribution unit to be used in dry forming of web material, the distribution unit comprising one or more screen pipes (1) into which a fiber material (3) intended for forming a web is blown, the fibers penetrating through jackets (2) of the screen pipes in order to be layered onto a wire, and the screen pipe(s) (1) being arranged to extend transversely over the wire; and a rotatable brush roller (4) arranged inside each screen pipe (1) in the axial direction thereof. In the invention, a blade wheel (5) is provided inside each screen pipe (1) near the end that is opposite to the end where the fiber material (3) is blown into the pipe, the blade wheel being arranged to blow in a direction opposite to the direction of flow (A) of the fibre material.
Patent CA-2368918-A1 (CA)
Inventor: PHILLIPS BENJAMIN A
IPC: F25B15/04
Filed: 2000-04-07
Abstract: L'invention concerne un appareil conçu pour des systèmes d'échange de chaleur du type par absorption et à générateur. Des modes de réalisation comprennent des surfaces de logement intérieures, moletées (20), des déflecteurs (30) d'écoulement et diverses conceptions et constructions de chauffage par transfert de chaleur, tous conçus pour améliorer et augmenter le transfert de chaleur et de masse dans des systèmes de réfrigération par absorption et à pompe de chaleur, du type ammoniaque-eau.