baber/WOPTO huggingface dataset:
Patent CA-2339216-A1 (CA)
Title: Device for producing a mixture permeated with natural fibers from chemically reactive plastic components
Inventor: SOCHTIG WOLFGANG
IPC: D01G1/04
Filed: 1999-07-24
Abstract: The aim of the invention is to integrate into the mixing head of a polyurethane installation, in which head a mixture flow of chemically reactive plastic components is produced, a cutting mechanism with which elastic yet resilient natural fibres or fibre bundles can be withdrawn from a continuous strand and after cutting into fibre sections of defined length can be introduced into the mixture flow. To this end the invention provides for a device by means of which the fibres are withdrawn from a continuous fibre bundle with two feed rollers (2, 3) and via a guide tube (4) positioned downstream and a counter-support tube (10) are delivered to rotating blade elements (11). By subjecting the guide tube (4) to a vacuum and applying a compressed-gas stream to the end of the counter-support tube (10) the elastic fibre bundle (1) is held straight in a manner which is optimal for cutting.  The cut fibre sections together with the gas stream are introduced into the mixture flow of chemically reactive plastic components.
Patent CA-2340128-A1 (CA)
Title: Dental instrument
Inventor: ERICSON DAN
IPC: A61C3/03
Filed: 1999-08-26
Abstract: The invention relates to a dental instrument for removing caries attacked dentine in connection with chemical-mechanical treatment of caries by means of a caries-dissolving solution applied to the caries for loosening the caries tooth substance. The instrument comprises a tool head (1) with a number of scraping edges or bristles (2, 5, 9) for scraping away the loosened caries tooth substance. In the spacings (2', 9') formed therebetween drops of the gel solution used for the chemical-mechanical treatment can be carried (transported) up to the tooth treatment site. In contrast to previous scraping instruments of this type the instrument is power-driven in order to provide the tool head (1) with a predetermined scraping motion. Preferably the instrument is provided with a torque control alarming or stopping the motion of the instrument as soon as the torque has reached a predetermined limit value.
Patent CA-2345586-A1 (CA)
Title: Packer annulus differential pressure valve
Inventor: VINCENT RAY
IPC: E21B34/10
Filed: 2001-04-27
Abstract: The invention is a well fluid production valve that is positioned downhole in a closed condition below an upper formation packer. The valve comprises a cylindrical mandrel having central bore flow connection with the upper bore of well fluid production tubing and coaxially aligned within the lower bore of the production tubing string. Flow port apertures through the mandrel wall provide well fluid flow paths between the mandrel O.D. and the bore I.D. of the lower production tubing. These flow ports are covered to close the valve by a sliding sleeve around the mandrel O.D. The sliding sleeve is spring biased to the open position but also secured at the closed valve position by an annular piston actuated sear mechanism. Actuation pressure for opening the valve to admit a flow of well fluids from the production zone is a predetermined differential between the well pressure above the packer, usually a function of the well depth, and the operator controlled pressure within attached production tubing. The formation pressure, which may be more or less than the corresponding head pressure, is isolated from the valve actuator and therefore does not contribute to the valve actuating pressure. A fluid pressure conduit is provided that transmits fluid pressure from a well annulus zone above the upper formation packer down past the packer to the upper face of the annular piston within an annular valve actuation cylinder. Production tubing bore pressure is routed to bear upon the lower face of the annular piston. Sufficient pressure differential on the annular piston displaces the sear piston from the sleeve holding position with the sear piston removed. The standing spring bias on the sleeve slides it along the mandrel O.D. to open the flow ports.
Patent CA-2346053-A1 (CA)
Title: Angiogenesis inhibitor
Inventor: MITA SHIRO
IPC: A61K31/265
Filed: 1999-09-30
Abstract: A newly found pharmacological effect of a cysteine derivative of strongly inhibiting angiogenesis. Owing to this effect, this cysteine derivative is expected as being useful as a remedy for diseases in which angiogenesis participates, in particular, retinal diseases such as diabetic retinitis, macular degeneration, retinal venous obliteration and retinal arterial obliteration, angiogenic glaucoma and tumors such as angioma.
Patent CA-2348542-A1 (CA)
Title: Variable loop gain in double loop power control systems
Inventor: SCHIFF LEONARD N
IPC: H04B7/26
Filed: 1999-10-26
Abstract: An apparatus and method for using a variable loop gain in a double-loop power control system to control the power of a forward link signal sent by a gateway to a user terminal to compensate for fading in a wireless communications system. In one embodiment the invention includes the steps of detecting fast fading in the forward link signal and informing the gateway of the fast fading; and at the gateway, reducing the loop gain of the power control loop when fast fading is indicated. In another embodiment, the invention includes the steps of, at the gateway, detecting fast fading in a reverse link signal received from the user terminal and reducing the loop gain of the power control loop when fast fading is indicated.
Patent CA-2350112-A1 (CA)
Title: Process to improve thermal properties of natural fibre composites
Inventor: SAIN MOHINI
IPC: C08L23/16
Filed: 2001-06-12
Abstract: Lignocellulosic and cellulosic fibres are melt processed with polyolefin plastic and an imide monomer first in a high shear thermo-kinetic mixer and then in a plastic extruder or injection molder to produce reinforced plastic composite products.
Patent CA-2350159-A1 (CA)
Inventor: DILLMAN BRUCE A
IPC: E01C19/10
Filed: 2001-06-08
Abstract: A rotary aggregate elevator for use in an asphalt plant comprising a rotating dryer drum for drying aggregate having an inlet end and an outlet end, a rotating mixing drum having an inlet end and an outlet end, and further having an inlet for dried aggregate at its inlet end for receiving dried aggregate, an annular collar attached to the inlet end of the mixing drum for receiving aggregate discharged from the outlet end of the dryer drum, the annular collar having flights attached to its inner wall to lift dried aggregate to the inlet of the mixing drum as it rotates.
Patent CA-2352241-A1 (CA)
Inventor: SIESS THORSTEN
IPC: G01L9/00
Filed: 1999-11-17
Abstract: L'invention concerne un détecteur de pression comprenant une puce (11) fixée sur une paroi de support (10). Cette puce (11) présente un ensemble résistance constitué de tracés conducteurs et placé sur le côté inférieur (13), orienté vers la paroi de support (10), d'un substrat (12). Cet ensemble résistance se trouve sur une membrane mince (18) derrière laquelle se trouve un évidement (19). Cette puce (11) est fixée au moyen d'une couche intermédiaire élastique (26) sur la paroi de support (10). Les composants électriques de la puce sont logés de manière à être protégés entre le substrat (12) et la paroi de support (10). L'invention permet de réaliser un dispositif détecteur extrêmement plat sans faire appel à un boîtier de détecteur supplémentaire, ledit dispositif pouvant même s'utiliser pour mesurer des pressions dans des milieux électroconducteurs.
Patent CA-2355871-A1 (CA)
Inventor: BAZARJANI SEYFOLLAH S
IPC: G11C27/02
Filed: 2000-01-11
Abstract: A linear switch is incorporated into an active sample and hold switch. The active sample and hold circuit is symmetric and configured to accept a balanced input. Two linear switches couple a positive input signal of the balanced input to two different sampling capacitors.  After the sampling capacitors are charged, another set of switches configures the sampling capacitors such that one of the sampling capacitor is in the feed back of an op amp and the other is connected from the input of the op amp to ground. In this configuration, the circuit has a gain of two and the output of the op amp is twice the voltage sampled by the sampling capacitors.
Patent CA-2357839-A1 (CA)
Title: Allergen neutralization compositions that contain aluminum sulfate and are not sticky when sprayed
Inventor: YOSHIKAWA AKIKAZU
IPC: A61L9/14
Filed: 2001-09-27
Abstract: Allergen neutralization compositions for use on inanimate objects having an effective amount of an allergy neutralizing aluminum ion, and a solvent. The allergen neutralization compositions are sprayable, and at least about 85%, by weight of the aluminum ion is provided as Al2(SO4)3 and the aluminum ion is present in the composition at about 0.01 % to about 1.0%, by weight of the allergen neutralization composition. The composition preferably contains essentially no aluminum chlorohydarate, and may contain additional allergen denaturing compounds such as polyphenol compounds, hydrogen peroxide, salicylic acid, citric acid, lactic acid, glycolic acid, additional metal ions and mixtures of these. These allergen neutralization compositions provide excellent efficacy against various allergens, and specifically, the allergens associated with house dust mites and other common allergens such as cat dander, cockroaches, pollen and the like. Moreover, when sprayed on fabric surfaces, these allergen neutralization compositions do not leave a sticky feeling.
Patent CA-2357908-A1 (CA)
Inventor: WARD KEVIN JOHN
IPC: D21F1/16
Filed: 2001-09-27
Abstract: Auto-joinable triple layer papermaker's forming fabrics which exhibit relatively low caliper values, good mechanical stability, and relatively high permeability. In one embodiment of the present invention, triple layer papermaker's forming fabrics having both top and bottom sets of machine direction and cross machine direction yarns are provided in which each yarn in the set of bottom machine directions yarns alternatively pairs with the two yarns in the set of bottom machine direction yarns that are woven immediately adjacent to it.
Patent CA-2358727-A1 (CA)
Title: Apparatus and method for measuring optical characteristics and recording medium
Inventor: KAWAZAWA TOSHIO
IPC: G01M11/00
Filed: 2001-10-12
Abstract: It is intended to provide an apparatus for measuring wave dispersion characteristic and the like only with one fiber pair.      This apparatus is provided with a variable wavelength light source 12 for generating variable wavelength light whose wavelength is variable, a fixed wavelength light source 14 for generating fixed wavelength light whose wavelength is fixed, optical modulators 15a and 15b for modulating the variable wavelength light and the fixed wavelength light with a predetermined frequency, a fiber coupler 16 for entering composite light generated by composing the variable wavelength light with the fixed wavelength light into a device under test, a circulator 22 for extracting a variable wavelength light component from a transmitted light transmitted through a fiber pair 30, and an optical filter 24 for extracting a variable wavelength light component from the transmitted light, and measures a phase difference of the variable wavelength light component and the like with the fixed wavelength light component as a reference for obtaining chromatic dispersion characteristics and the like. It is possible to measure the phase difference and the like with one optical fiber line 32 through which the composite light is transmitted, thereby measuring the phase difference and the like with the one fiber pair 30.
Patent CA-2359108-A1 (CA)
Title: Herbicidal oxadiazolidines
Inventor: SMITH WILLIAM FRANCIS III
IPC: C07D417/04
Filed: 2000-01-20
Abstract: Compounds of Formula (1) and processes for their preparation, their N-oxides  and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation wherein Q, X1, X2, X3, R1, R2, R6 and R7 ar e as defined in the disclosure. Also disclosed are novel intermediates of Formula (5), Formula (8) and Formula (20) wherein R27 is -(CR6R7)q-Q; R6, R7 , q, Q, X1 and X2 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula (1) and a method for controlling undesired vegetation which involves contacting the vegetation or  its environment with an effective amount of a compound of Formula (1).</SDOA B>
Patent CA-2361205-A1 (CA)
Inventor: IGNATYEV NIKOLAI
IPC: H01G11/56
Filed: 2001-11-05
Abstract: The present invention relates to mixtures of fluoroalkylphosphate salts and polymers, methods of producing same, and their use in electrolytes, batteries, capacitors, supercapacitors and galvanic cells.
Patent CA-2363778-A1 (CA)
Inventor: REYAL JEAN-PIERRE
IPC: H01J9/14
Filed: 2000-02-08
Abstract: The support frame for a planar mask pertaining to a cathodic colour display tube, which is generally rectangular in shape, comprises two vertical end members (41,41') that are placed opposite each other and can receive a planar mask, in addition to two side members (40,40') that keep the vertical end members separate from each other. The vertical end members and the side members are generally tubular in shape and are assembled in such a way as to constitute a practically continuous hollow body, whereby it is possible to define a closed planar line that is located fully inside the hollow body and passes inside each vertical end and side member. The inventive support frame can be made by folding a single metal strip or by interlocking two pressed casting moulds. The production method involves folding.
Patent CA-2366718-A1 (CA)
Title: Method of and apparatus for measuring lattice-constant, and computer program
Inventor: MATSUDA TAKEYOSHI
IPC: G01N23/20
Filed: 2002-01-08
Abstract: A condenser angle of 0.5 mrad or below is set with respect to a specimen. Electron-beam diameter of 20 to 100 nm .PHI. is set onto the surface of the specimen. A flux of highly parallel electron beams is irradiated onto the specimen having a strained layer quantum well structure.  An image of electrons diffracted from the specimen is recorded onto an imaging plate. The recorded image is analyzed. Lattice constants and strains of layers of the strained layer quantum well structure are measured based on a result of this analysis.
Patent CA-2368476-A1 (CA)
Title: A process for the preparation of gabapentin
Inventor: GIORDANI CRISTIANA
IPC: C07C229/28
Filed: 2000-03-16
Abstract: A process for the preparation of gabapentin starting from gabapentin hydrochloride, which comprises the following steps: preparing a gabapentin hydrochloride aqueous solution; adjusting the pH of said solution to or abou t to gabapentin isoelectric point by addition of a basic compound comprising a  monovalent anion; diafiltering said solution through a membrane highly selective for organic compounds with molecular weight higher than 150 and poorly selective for inorganic monovalent ions, to separate said solution in to an aqueous permeate containing chloride ions and a retentate containing unsalified gabapentin substantially free from chloride ions; concentrating said retentate by increasing the pressure exerted on said membrane to obtain  a concentration of unsalified gabapentin in the retentate not lower than 5 %; evaporating the retentate under reduced pressure and at T~ < 35~; precipitating gabapentin by addition of an alcohol.
Patent CA-2368935-A1 (CA)
Inventor: KOJO TEPPO
IPC: B65H26/02
Filed: 2000-03-27
Abstract: La présente invention concerne un procédé de déroulement continu dans une bande de papier, dans lequel la bobine de papier (3) enroulé sur un tambour enrouleur (2) ou autre est déroulée par la rotation de celui-ci pour guider la bande de papier (1) vers une autre étape du traitement. Le procédé est caractérisé en ce que la forme de la surface extérieure de la bobine de papier (3) déroulé est mesurée en vue de détecter l'apparition possible de défauts dans la bobine de papier (3). L'invention concerne également un appareil pour la mise en oeuvre du procédé.
Patent CA-2371075-A1 (CA)
Title: Flexible conductor core for superconducting power cable and manufacturing process thereof
Inventor: PEREZ SANCHEZ ALFONSO
IPC: H01B12/02
Filed: 2002-02-08
Abstract: A flexible conductor core for superconducting power cable, characterized by a central tubular element on which the superconducting tapes are placed, in the shape of a spiral or helix, in at least two layers with a calculated angle of lay length, being one of the sections of the layers of the superconducting tapes laid in a direction opposite to the other section, wherein the laying length of all the layers varies from a maximum P max1 (1000 cm) and P max2 (1000 cm) in the intermediate layers to a P min1 (2 cm) and P min2 (2 cm) in the external layers, while the laying angle of the tapes of all the layers varies from .alpha.max1 (45°) to .alpha.min1 (0°).
Patent CA-2371640-A1 (CA)
Inventor: BADARNEH ZIAD
IPC: A63B22/16
Filed: 1999-05-06
Abstract: Pedal device for rotary attachment to a pedal crank arm of physical training apparatus, e.g. a bicycle, said device comprising a first pedal rotatably attached to a pedal shaft (3), said pedal shaft at a free end thereof firmly attachable to said crank arm (8), and said first pedal having a first pedal engagement face for use in carrying out conventional training exercise. Said device is provided with a second pedal (1) tiltably attached to said first pedal about an axis extending transversely through a longitudinal axis of said pedal shaft and parallel to said first pedal face approximately midway between an inner and an outer end thereof. Said second pedal has second pedal engagement face (6) facing away from said first pedal engagement face and spaced from said transversely extending axis, and said second pedal is tiltable to either side relative to said first pedal by an acute angle, e.g.  in the range 0-35 degrees.
Patent CA-2374661-A1 (CA)
Title: Handwritten text capture via interface surface
Inventor: SILVERBROOK KIA
IPC: G06F3/0354
Filed: 2000-05-24
Abstract: A method and system for enabling user interaction with computer software running in a computer system via an interface surface and a sensing device. The interface surface contains information relating to the computer software  and coded data indicative of a text field. When placed in an operative position relative to the interface surface, the sensing device senses indicating data indicative of the text field and generates movement data indicative of the sensing device's movement relative to the interface surfac e. The indicating data and movement data are received in the computer system an d the text field is identified from the indicating data. The computer software  is operated at least partly in reliance on the movement data, and in accordance with instructions associated with the text field.
Patent CA-2375901-A1 (CA)
Inventor: HERNANDEZ JOSE D
IPC: G06V10/143
Filed: 2000-06-16
Abstract: Selon cette invention, un ensemble d'instrument optique destiné à balayer des biopuces à la recherche d'échantillons d'ADN comprend un émetteur pour projeter un signal optique possédant au moins un premier et un deuxième réseaux spectraux vers un échantillon contenant un ADN. Un détecteur comprend un capteur pour détecter un signal optique émis à partir de cet échantillon. Un premier mécanisme d'entraînement déplace le signal optique en avant et en arrière sur l'échantillon. Un deuxième mécanisme d'entraînement modifie la position de l'échantillon par rapport au signal optique. Un contrôleur termine la détection d'un ou de plusieurs réseaux spectraux tout en déplaçant le signal optique vers l'avant et termine la détection de l'autre réseau spectral tout en déplaçant le signal optique vers l'arrière.
Patent CA-2379231-A1 (CA)
Title: Conservation de micro-organismes, de cellules et de tissus
Inventor: CODD ANTHONY ARTHUR
IPC: A61K35/74
Filed: 2000-07-17
Abstract: La présente invention concerne une composition permettant de conserver des micro-organismes, cellules et tissus viables, comprenant: (a) une combinaison de conservation constituée (i) d'un disaccharide non réducteur et (ii) d'un agent gonflant; et (b) un tampon. Cette invention concerne également un procédé permettant de conserver des micro-organismes, cellules et tissus viables, comprenant les étapes suivantes: combinaison des micro-organismes, cellules et tissus viables avec une solution de conservation comprenant un disaccharide non réducteur; séchage de la combinaison pour former une préparation sèche ayant une teneur en extrait sec d'au moins 80 % en poids; et contage des micro-organismes, cellules et tissus viables dans la préparation sèche, la préparation sèche pouvant être combinée avec un tampon aqueux pour obtenir une préparation aqueuse comprenant un nombre prédéterminé de micro-organismes, cellules et tissus viables.
Patent CA-2380976-A1 (CA)
Inventor: TAYLOR JARED L
IPC: H01M8/04
Filed: 2000-08-23
Abstract: In a solid polymer fuel cell series, various circumstances can result in a fuel cell being driven into voltage reversal by other cells in the series stack. For instance, cell voltage reversal can occur if that cell receives a n inadequate supply of fuel (for example, fuel starvation). In order to pass current during fuel starvation, reactions other than fuel oxidation may take  place at the fuel cell anode, including water electrolysis and oxidation of anode components. The latter may result in significant degradation of the anode. Such fuel cells can be made more tolerant to cell reversal by promoti ng water electrolysis over anode component oxidation at the anode. This can be accomplished by enhancing the presence of water in the anode catalyst layer through modifications to the anode structure or anode composition near or in  the catalyst layer. For instance, water electrolysis during voltage reversal  is promoted through the use of different or additional ionomer, polytetrafluoroethylene, or graphite in the anode catalyst layer, or through  the use of certain sublayers between the anode catalyst layer and the anode substrate.
Patent CA-2381102-A1 (CA)
Title: Method for surface treatment of fresh meat
Inventor: MARGGRANDER KURT
IPC: A23L13/50
Filed: 2000-09-09
Abstract: The present invention creates a process for treating the surface of fresh meat, in which the meat is treated with a hydrocolloid based on collagen, in particular gelatine, animal glues, collagen, caseins, whey proteins and/or their hydrolysates as well as their mixtures with one another.     In particular a weight loss of the meat during storage due to escaping drip is thereby prevented.     In the process according to the invention the meat is preferably treated with 0.2 to 1.5 wt % of hydrocolloid, referred to the weight of the meat. It is possible with said process to treat all kinds of meat suitable for human consumption, in particular mammal meat, poultry and fish.
Patent CA-2386891-A1 (CA)
Title: Ferrierite soumis a un echange d'ions avec des metaux de terres rares
Inventor: JOHNSON JACK WAYNE
IPC: B01J29/65
Filed: 1999-03-05
Abstract: Dans cette invention, du ferriérite est soumis à un échange d'ions avec des métaux de terres rares trivalents par un procédé d'échange ionique hydrothermique. On réalise l'échange ionique en mettant en contact le ferriérite, dont les positions d'échange cationique sont occupées par de l'hydrogène ou un précurseur d'hydrogène, avec une solution aqueuse d'un ou plusieurs cations de métaux de terres rares à une température supérieure au point d'ébullition de la solution. Après l'échange ionique, de préférence 10 % au moins et plus préférablement 15 % au moins de la capacité d'échange cationique du ferriérite sont occupés par un cation de métaux de terres rares trivalents. Lorsqu'il est combiné avec un métal catalytique, tel qu'un métal noble du groupe VIII, ce ferriérite ayant subi un échange ionique avec des métaux de terres rares trivalents peut être utilisé comme catalyseur de déparaffinage ayant une bonne sélectivité pour les fractions des huiles lubrifiantes, en particulier lors du déparaffinage d'un hydro-isomérate de paraffine de Fischer-Tropsch.