baber/WOPTO huggingface dataset:
Patent CA-2323023-A1 (CA)
Inventor: AMACHI NOBUMITSU
IPC: H03D7/14
Filed: 2000-10-06
Abstract: A double-balanced mixer includes a first pair of differential amplifiers, in which first electrodes of the first and second transistors are connected to a current source, and a first input signal is applied to second electrodes of the first and second transistors, a second pair of differential amplifiers, in which the first electrodes of the third and fourth transistors are connected to a third electrode of the first transistor, and a second input signal is applied to the second electrode of the third and fourth transistors, a third pair of differential amplifiers, in which the first electrodes of the fifth and sixth transistors are connected to the third electrode of the second transistor, and the second input signal is applied to the second electrodes of the fifth and sixth transistors, and an impedance element provided between the first electrodes of the first and second transistors. In the double-balanced mixer, the third electrodes of the third and fifth transistors are connected, the third electrodes of the fourth and sixth transistors are connected, the current source includes a first current source and a second current source in which substantially identical currents flow, and the first electrode of the first transistor and the first electrode of the second transistor are connected to the first and second current sources, respectively.
Patent CA-2323929-A1 (CA)
Title: Methods and products for stimulating the immune system using immunotherapeutic oligonucleotides and cytokines
Inventor: KRIEG ARTHUR M
IPC: A61P37/04
Filed: 1999-04-02
Abstract: The present invention relates to synergistic combinations of immunostimulatory CpG oligonu-cleotides and immunopotentiating cytolcines. In par-ticular, the invention relates to methods of stimulat-ing an immune response using the synergistic com-bination of compounds and products related thereto.
Patent CA-2324943-A1 (CA)
Inventor: SINDZINGRE THIERRY
IPC: C23C8/22
Filed: 1999-03-26
Abstract: The invention concerns a method for carburizing or carbonitriding metal or metal alloy parts, which consists in contacting the parts, for at least a carbon-enriching phase, with an enriching atmosphere comprising hydrogen and carbon monoxide, the atmosphere CO/H¿2? ratio being different by 1/2.
Patent CA-2325609-A1 (CA)
Inventor: D IPPOLITO FRANK M
IPC: G07B17/00
Filed: 1995-05-04
Abstract: A method and system for postage payment include the generation of a plurality of dispensable discrete items of encrypted data. Each of said items of encrypted data, which may be digital tokens, have a specific value. The generated plurality of discrete items of encrypted data are stored on a portable medium.  A prepayment value is also stored on the portable medium. The stored plurality of discrete items of encrypted which are dispensable is limited based on the prepayment value stored on the portable medium. The medium may be a device or member having memory means for storing a plurality of dispensable tokens.   Means to account for digital tokens dispensed from the memory means.      The portable member or device may have a housing with a register means within said housing. The postage prepayment value is stored in the register.  The plurality of discrete items of encrypted data is stored in the housing with each of the items of encrypted data adapted to be formatted for printing. Means within said housing are coupled to the plurality of discrete items of encrypted data and to said prepayment register for enabling at least one selected item of encrypted data to be communicated outside of the housing if the value stored in register is at least equal to the specific value of the selected item of encrypted data.
Patent CA-2325764-A1 (CA)
Title: Line retaining plate for trimmer head of string trimmer/mower apparatus
Inventor: KREISSLE STEPHEN O
IPC: A01D34/416
Filed: 2000-11-02
Abstract: A trimmer head assembly of a string trimmer mower apparatus has a stack of plates with a ground engaging member on one end of the stack. At the other end, the stack of plates is fastened to a rotating shaft that is driven in rotation by the motor or engine of the trimmer/mower. The plates of the stack have line retaining devices to which one or more lengths of cutting line are secured. Each plate is of a sufficient thickness to spread the respective line retaining devices axially or vertically apart from one another in suitable increments for providing cutting height adjustment selectively by securing a cutting line at the appropriate height. The line retaining devices enable the cutting line to be secured without tools and without disassembly of the trimmer head. Further, the line does not need to be clamped in place to ensure that it remains secured during high speed rotation of the trimmer head. The line retaining devices have two adjacent projections having channels formed around each projection that merge into a common channel at their one end.      At the other end of the channels, opposite ends of a length of cutting line are inserted. The cutting line extends through the channels and out beyond the periphery of the plate. A mid portion of the line is tucked underneath a peripheral rim portion of the plate between the projections to secure the line in place.
Patent CA-2326396-A1 (CA)
Inventor: POZZUOLI MARZIO
IPC: H02H3/00
Filed: 2000-02-11
Abstract: A protective relay and power system protection method which incorporates multiple user-selectable communications protocols over multiple communications ports. The relay can support multiple communications protocols over a single communications port, and can support simultaneous formatting and communication over multiple communications ports using different protocols. By supporting a full array of communication protocols in each relay, protective control functionality is enhanced.
Patent CA-2326426-A1 (CA)
Title: Steering and lubrication system component arrangement for land vehicles
Inventor: ATSUUMI MAMORU
IPC: B62M27/02
Filed: 2000-11-23
Abstract: A land vehicle includes an improved construction that can space a steering linkage from the terrain even though an engine for the vehicle has an oil pan positioned at a lower portion of the engine and the steering linkage passes below the engine. The land vehicle includes a drive unit that depends from a body frame and abuts the terrain. The body frame carries the engine. The oil pan is positioned generally at a bottom of the engine and lubricant oil temporarily accumulates in the oil pan. A steering assembly is connected to the body frame for steering movement. The steering assembly includes a pair of skis and a steering linkage extending through the body frame and arranged to steer the skis. The steering linkage and the oil pan, at least in part, are generally horizontally juxtaposed with each other.
Patent CA-2334029-A1 (CA)
Inventor: CRUDDEN JOSEPH J
IPC: A01N37/30
Filed: 1999-05-21
Abstract: La présente invention concerne un adjuvant pour le glyphosate et qui présente une activité accrue, un pouvoir irritant moindre et une moindre toxicité que les adjuvants conventionnels. L'invention concerne également des techniques de lutte contre les mauvaises herbes au moyen de ces adjuvants. Cet adjuvant est un sarcosinate en C¿8?-C¿22? ou un sel de sarcosinate tel que le cocoyle-sarcosinate de sodium, le lauroyle-sarcosinate de sodium, ou certaines de leurs combinaisons. Combiné à un glyphosate à faible concentration, l'adjuvant présente une activité effective.
Patent CA-2335002-A1 (CA)
Title: Method for encapsulating solder metal powders and solder metal powders produced according to this method
Inventor: SCHULZE JURGEN
IPC: B23K35/14
Filed: 1999-06-15
Abstract: The aim of the invention is to improve a method for encapsulating solder metal powders and the microencapsulated solder in such a way that the metal powder is reliably protected from external oxidising influences and the capsule only releases the metal powder as a result of the influence of temperature, without the influence of soldering flux. To this end, the method comprises the following steps: a) producing a suspension consisting of powder and a hydrophobic liquid; b) producing a hydrophobic surface layer on each metal particle by adding a cationic tenside; c) stirring the mixture obtained in steps a) and b) until a viscous, homogeneous mass is formed; d) mixing a radically polymerisable monomer into the mass obtained in step c); e) adding an organic initiator to start an interfacial polymerisation reaction; f) introducing the mass obtained in step e) into an aqueous substance, constantly stirring and controlling the polymerisation reaction by tempering to 50 to 90°C, and maintaining this temperature for at least 120 minutes and g) cooling, washing and separating the encapsulated solder powder.
Patent CA-2336073-A1 (CA)
Title: Garniture de canalisation, co-extrudee, a deux duretes durometriques
Inventor: KEARNS THOMAS P
IPC: F16L21/035
Filed: 1999-07-02
Abstract: La présente invention concerne un joint (20) de canalisation formé à l'aide d'une garniture (10) constituée de matériaux co-extrudés de différente dureté durométrique. La garniture (10) comprend une partie d'étanchéité (12), relativement souple et composée d'un élastomère thermoplastique, jointe à un substrat plastique (14), plus dur, sur un côté du substrat, habituellement sur la circonférence extérieure du substrat (14). Le substrat (14) peut comporter des régions de raidissement (18) espacées axialement les unes des autres et situées sur des côtés opposés au matériau souple. La circonférence intérieure de la garniture (10) (si la partie d'étanchéité souple est située sur la circonférence extérieure) peut présenter des renflements annulaires (16) espacés axialement les uns des autres afin d'engager des épaulements (26) dans l'une des canalisations constituant le joint, afin de limiter un déplacement axial de la garniture (10). La garniture (10), en raison de son substrat (14) relativement rigide, ne remplit pas une gorge (27), de la canalisation (22), définie par les épaulements (26), ce qui réduit la quantité de matériau de garniture nécessitée par un joint manchonné conventionnel.
Patent CA-2336259-A1 (CA)
Title: Fluid balancing ring and method for using same
Inventor: BRAUNSCHWEIG JAMES R
IPC: D06F37/24
Filed: 2001-03-01
Abstract: A fluid balancing ring includes a plurality of partitions forming a circular array of sub-chambers around its circumference. A valve is associated with each of the partitions and is movable in response to the centrifugal force of the rotating balance ring from a closed position preventing fluid communication through the partitions to an open position permitting fluid communication through the partitions. A spring urges the valve to its closed position.
Patent CA-2336484-A1 (CA)
Title: Pallet assembly
Inventor: APPS WILLIAM P
IPC: B65D19/00
Filed: 1999-06-25
Abstract: A pallet assembly (10) includes a top deck (12) formed of plastic which has a first opposing surface having a plurality of first flanged portions (34) projecting downwardly therefrom. The top deck (12) has a substantially planar upper surface (26) upon which a plurality of objects are capable of resting.  The pallet assembly (10) also includes a bottom deck (14) which is also formed of plastic and has a second opposing surface with a plurality of second flanged portions (36) projecting therefrom in an upward direction. The plurality of second flanged portions correspond to and securely mate with the plurality of first flanged portions to define a plurality of columns (16, 18, 19, 32) between the top deck and bottom decks, the columns having a box beam cross-section for providing strength to the pallet assembly. The top deck (12) includes a top member (38) and a mid-top member (40), and the bottom deck (14) includes a bottom member (42) and a mid-bottom member (44).
Patent CA-2339963-A1 (CA)
Title: Medium density polyethylene film having unidirectional tear
Inventor: PIP HANS JOACHIM
IPC: B29C48/00
Filed: 1999-07-27
Abstract: The present invention is directed to biaxially oriented polymeric films.  Specifically, the present invention is directed to biaxially oriented polyethylene films having unidirectional tear characteristics in machine direction and method thereof. The film of the present invention comprises (1) a core layer of medium density polyethylene (MDPE) and optionally a cavitating agent; and (2) at least one skin layer on at least one surface of the core layer. The skin layer is also made from a polyethylene. The core and skin layers coextensively adhere to one another and are biaxially oriented in both machine and traverse directions.
Patent CA-2340670-A1 (CA)
Title: An anthraquinone and its derivatives
Inventor: SMITH PAUL JAMES
IPC: C12Q1/68
Filed: 1999-06-15
Abstract: There is disclosed a compound of formula (I) wherein each of X1 and X2 are independently NH-A-NR1R2, and wherein A is A C2-8 alkylene group and R1 and R2 are independently selected from hydrogen, C1-4 alkyl, C2-4 hydroxy-alkyl and C2-4 aminoalkyl, or R1 and R2 together form a C2-6 alkylene group which with the nitrogen atom to which R1 and R2 are attached forms a heterocyclic ring, or an N-oxide derivative thereof, and wherein the compound (I) or its N-oxide derivative is optionally in the form of an acid salt derived from an organic or inorganic acid. Also disclosed is a method of its production and its uses, including its use in analysing a cell or biological material and detecting the emitted fluorescence signal.
Patent CA-2342148-A1 (CA)
Title: Automatic stacker
Inventor: FISCHER HERMAN
IPC: G11B17/08
Filed: 2001-03-26
Abstract: The invention comprises a new concept for an automatic stacking machine.
Patent CA-2345624-A1 (CA)
Title: Crystal of diuridine tetraphosphate or salt thereof and method for preparing the same, and method for producing said compound
Inventor: NODA YUTAKA
IPC: C07H19/10
Filed: 1999-10-01
Abstract: The invention provides crystals of P1,P4-di(uridine 5'-)tetraphosphate or a salt thereof; a process for producing the crystals; and a process for producing P1,P4-di(uridine 5'-)tetraphosphate (U2P4) or a salt thereof from UMP serving as a starting material and by use of DPC and PPi, which process comprises at least one of the following treatment steps: (a) adding UMP diphenylphosphate (UMP-DPP) in divided portions during a step of reaction of UMP-DPP with a PPi-organic alkali salt; (b) carrying out reaction of UMP-DPP with a PPi-organic alkali salt in the presence of a base; and (c) further treating the synthesized U2P4 with an alkali.      The crystals of U2P4 or a salt thereof obtained through the process according to the invention have high purity and stability and,a less hygroscopicity as compared with a lyophilized product, to thereby serve as a useful raw material for preparing a pharmaceutical. The process for producing U2P4 or a salt thereof according to the invention realizes high yield and enables large-scale synthesis.
Patent CA-2347601-A1 (CA)
Title: A fixturing device for holding a workpiece
Inventor: STEWART MAX E
IPC: B23Q3/18
Filed: 2001-05-15
Abstract: A fixturing device for holding a workpiece for processing by a machine comprises first and second subassemblies adapted to be attached to a moveable portion of the machine. The first and second subassemblies are arranged on opposite sides of the workpiece location and each subassembly includes an attachment member, a holding block, connecting means for connecting the holding block to the attachment member with a predetermined spacing therebetween, and spring biasing means for spring loading the holding block at the predetermined spacing. Both the connecting means and the spring biasing means are constructed and arranged to permit movement of the holding block toward the attachment member, and are constructed so that the holding blocks of the first and second subassemblies are directed at each other and spaced apart to define a workpiece-receiving region therebetween.
Patent CA-2347866-A1 (CA)
Title: Systeme de diffusion pour dispositifs d'affichage a encre electronique
Inventor: GATES HOLLY G
IPC: G06F3/147
Filed: 1999-11-02
Abstract: Système permettant de commander et de mettre à jour de manière centralisée des dispositifs d'affichage actifs répartis en un ou plusieurs sites. Le dispositif d'affichage imprimable peut être utilisé dans une variété d'applications. Il peut être utilisé comme indicateur, changeant l'état de l'affichage après l'écoulement d'un intervalle de temps, ou lorsqu'un seuil de pression, de température, de radioactivité, d'humidité, d'intensité sonore, d'inclinaison, de pH ou autre, est atteint. Dans un mode de réalisation, le dispositif d'affichage est intégré à un indicateur de batterie. Un dispositif d'affichage de type étiquette est également décrit, doté d'un dos adhésif permettant de le fixer sur une surface afin de créer une unité fonctionnelle d'affichage d'informations. Cette invention concerne également un dispositif d'affichage alimenté et commandé à l'aide de radiofréquences. Le système comprend une ou plusieurs antennes, un circuit de charge passif, un système de commande actif, un dispositif d'affichage et une unité de stockage d'énergie. Un émetteur séparé assure l'alimentation à distance du dispositif. Ce système est conçu afin d'être utilisé là où il est utile de fournir des mises à jours intermittentes d'informations : dans un magasin, sur une autoroute ou dans un aéroport. Un dispositif d'affichage à mosaïques, permettant d'obtenir un système modulaire pour l'affichage sur de grandes surfaces, peut être créé à partir d'un matériau d'affichage imprimable.
Patent CA-2349263-A1 (CA)
Inventor: HUTCHINSON ALBERT LEE
IPC: H01S5/12
Filed: 2001-05-29
Abstract: In a mesa geometry semiconductor laser, a patterned dielectric coating used to define the stripe geometry contact on the top the mesa and to provide significant waveguiding comprises a chalcogenide glass. Applications to intersubband (e.g., quantum cascade) lasers are specifically described.
Patent CA-2349320-A1 (CA)
Title: Improvements in and relating to a tool
Inventor: HAWKETTS GEOFFREY
IPC: B23D49/10
Filed: 2001-05-30
Abstract: This invention relates to a hand tool. The tool includes a replaceable cutting portion having an elongate cutting surface, a body and a handle. The body receives displaceable protecting apparatus for shielding the cutting surface of the cutting portion when the tool is not in use. The protecting apparatus is adapted at its forward distal end to contact a portion of the surface of the object to be cut such that when pressure is applied by pushing the tool against the object surface displacement of the protecting apparatus relative to the position of the replaceable cutting portion is effected to expose only as much of the cutting surface of the cutting portion as needed-to effect the required cut in the object. Alignment means maintain alignment of the replaceable cutting portion relative to the position of the protecting apparatus throughout the cutting action. When the cutting action is completed resilience means facilitates return of the protecting apparatus to a position whereby the cutting surface of the cutting portion is no longer exposed.
Patent CA-2350726-A1 (CA)
Inventor: PINARD DENYS
IPC: C22B3/44
Filed: 2001-06-14
Abstract: Process and apparatus for recovering magnesium from foundry sludge and cell bleed electrolytes includes structure and/or steps for: (i) dissolving, in a water slurry, soluble chloride compounds in the magnesium-containing material; (ii) acidifying the water slurry to between substantially pH 4 and substantially pH 6; (iii) further acidifying the water slurry to between substantially pH 1 and substantially pH 0, and providing a magnesium chloride solution; (iv) precipitating calcium from the magnesium chloride solution; (v) separating solids from the magnesium chloride solution; (vi) stripping SO2 from the magnesium chloride solution; and (vii) precipitating NaC1 from the magnesium chloride solution to provide a concentrated magnesium chloride solution.
Patent CA-2351463-A1 (CA)
Title: Antiviral formulations comprising propylene glycol and an isopropyl alkanoic acid ester
Inventor: LEKARE GUNILLA
IPC: A61K47/44
Filed: 1999-11-12
Abstract: A topical composition comprising an antiinflammatory glucocorticoid and a nucleoside analogue antiviral agent in a pharmaceutical carrier characterized in that the carrier comprises about 15 to about 25 weight % propylene glycol and about 10 to about 25 weight percent isopropyl C12-C22 alkanoic ester. The compositions have utility in the treatment or prophylaxis of herpesvirus infections and exhibit superior antiviral and therapeutic efficacy and an improved shelf life.
Patent CA-2355649-A1 (CA)
Title: Display system with interactive features
Inventor: UNSWORTH PETER
IPC: G06F3/033
Filed: 2000-01-05
Abstract: An interactive display system comprises a white board (10) which communicates with a PC (12). A projector (14) receives signals from the PC (12) which are translated into corresponding projection image which is projected on to the white board (10). The image projected on to the white board (10) is the same as that shown on a computer screen (28). By using an electronic pen (16) the position of which can be detected electronically by means of a plurality of wires embedded beneath the surface of the white board (10) and using methods already known in the art, the electronic pen can function in the same way as a computer mouse. The image projected on to the white board (10) may also be manipulated by means of a remote control device (18), which uses infra red communication to transmit signals to a transporder (20) built within the white board (10).
Patent CA-2355861-A1 (CA)
Title: Derives d'amide et d'uree s'utilisant comme inhibiteurs de reabsorption de 5-ht et comme ligands de 5-ht1b/1d
Inventor: RAUTENBERG WILFRIED
IPC: A61K31/454
Filed: 1998-12-22
Abstract: L'invention concerne des dérivés d'amide et d'urée de la formule (I): R<1>-(CH2)n-(Y)q-(Z)r-CO-NH-R<2> dans laquelle R<1>,n,Y,q,Z,r et R<2> ont les significations mentionnées dans la revendication 1. Ces dérivés sont des antagonistes de 5-HT1B/1D puissants et présentent des effets inhibiteurs de la réabsorption de 5-HT et s'utilisent pour traiter et assurer la prophylaxie d'états d'anxiété, de dépressions, de la schizophrénie, d'obsessions, de dyskinésies tardives, de troubles de l'apprentissage, de troubles de la mémoire dus au vieillissement, pour influer positivement sur les troubles de type obsessionnels-compulsifs (OCD), de même que pour traiter et lutter contre les suites d'infarctus cérébral, tels que l'attaque cérébrale et l'ischémie cérébrale.
Patent CA-2356791-A1 (CA)
Inventor: GUIO RAPHAEL H
IPC: H05K7/20
Filed: 2001-09-04
Abstract: A heat sink is provided having a base member and a plurality of heat dissipating elements that are spaced apart, attached to and project from the base member. The outer two heat dissipating elements are arranged to define a generally U-shaped structure enclosing the remaining of the heat dissipating elements located intermediate the outer two heat dissipating elements.
Patent CA-2358325-A1 (CA)
Title: A moisture sensor
Inventor: DAUSMANN GUNTHER
IPC: G01N21/552
Filed: 2001-10-05
Abstract: A moisture sensor in which light is transmitted into a light guiding layer by a light source, undergoes total reflection there as long as the surrounding medium has a moisture level lower than a threshold moisture and does not undergo total reflection if the moisture level of the medium exceeds a threshold value. The sensor has an unlinking element to transmit the light from the light guiding layer and a detector for the transmitted light. A reflection hologram is provided on a part of the light guiding layer which, when a light ray is incident at the angle at which the light propagates in the light guiding layer, reconstructs a light ray which extends substantially counter to the incident light ray. The moisture sensor can also utilize a pane, in particular an aeroplane or vehicle windshield, as the light guiding layer.