baber/WOPTO huggingface dataset:
Patent CA-2201114-C (CA)
Inventor: HEWITT GEOFFREY FREDERICK
IPC: B01F5/06
Filed: 1995-09-27
Granted: 2006-08-01
Abstract: A static mixer (22) is provided for one or more fluids flowing in a pipe (108), such as oil, water and gas from an oil well. The mixer (22) comprises an element (112, 114) to divide the flowing fluids into at least two streams within the pipe (108) and to deflect two of the resulting streams so that those streams rotate in opposite senses about axes parallel to the direction of flow of the fluid, the element (112, 114) being shaped so as to maintain movement of the flow in a substantially smooth manner. Apparatus (10) is provided for analysing fluid flow in a pipe (108) comprising at least one radiation source (12, 14) to direct radiation through the flow, and at least one radiation detector (12, 14) positioned to receive from the source or sources radiation which has passed through the flow, the source or sources emitting radiation at least at two different energies. The or each detector provides a signal to a processing unit (20) which is arranged to process the signal to provide a series of chronological values, to group the values by magnitude and to analyse the grouped values, for example, to determine phase fraction, type of flow e.g. slug flow, and flow rate.
Patent CA-2205986-C (CA)
Inventor: TUCKER THOMAS C
IPC: H04L12/26
Filed: 1997-01-24
Granted: 2006-04-11
Abstract: The communication system includes a hybrid fiber/coax distribution network. A  head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The system includes service units, operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data and for receipt of the downstream control data and telephony. Also provided is a method and apparatus for performing a Fast Fourier Transform (FFT).
Patent CA-2206004-C (CA)
Inventor: SORENSEN KENT
IPC: B32B33/00
Filed: 1995-12-12
Granted: 2007-06-05
Abstract: L'invention porte sur un produit thermodurcissable dont la matrice comporte au moins une macromolécule dendritique ou hyperramifiée présentant une terminaison de chaîne comportant au moins un site de réaction primaire ou secondaire. Un second aspect de l'invention porte sur le procédé d'obtention dudit produit et un troisième aspect, sur une composition de résine thermodurcissable dont la matrice ou une partie de la matrice est faite dudit produit. Cette composition est particulièrement adaptée à des matériaux thermodurcissables dont divers composés. La macromolécule dendritique ou hyperramifiée présentant une terminaison de chaîne comportant au moins un site de réaction primaire ou secondaire est combinée à au moins une résine thermodurcissable classique ou à des composés monomériques ou polymériques aliphatiques, cycloaliphatiques ou aromatiques.
Patent CA-2210245-C (CA)
Inventor: LAUREL DAVID F
IPC: E21B33/127
Filed: 1997-07-14
Granted: 2004-01-06
Abstract: An inflation packer method and apparatus comprising an inflatable packer bladder and an inflation fluid.  The packer apparatus further comprises a packer mandrel having a central flow passage  therethrough and an outer packer body which includes the inflatable packer bladder.  A chemical expanding additive is employed to expand the inflation fluid used to inflate  the  packer  bladder.    An  annular  inflation  fluid passageway  is  defined  between  the  mandrel  and  the  body.          Inflation fluid passes from the central flow passage into the annular inflation fluid passageway to inflate the inflatable packer bladder.  The mandrel has grooves defined on an outer surface thereof.  The chemical expanding additive is placed in grooves defined on the outer surface of the mandrel so that the expanding additive is dispersed into the fluid passing into the annular passageway.
Patent CA-2210352-C (CA)
Inventor: SHAKLEY GREGORY T
IPC: F17C11/00
Filed: 1996-01-30
Granted: 2001-04-24
Abstract: L'invention concerne une masse de remplissage en silicate de calcium, poreuse, dépourvue d'amiante et durcie (50), pour récipient de stockage de l'acétylène (10), que l'on obtient en mélangeant de la chaux vive et de l'eau pour former un premier mélange, puis en ajoutant de la silice quartzeuse pulvérisée pour former un second mélange, en ajoutant un matériau de renfort fibreux pour former un troisième mélange et, enfin, en ajoutant de la silice précipitée (ou de la silice synthétique) et en l'homogénéisant pour former un quatrième mélange. On transfère ce quatrième mélange dans un cylindre (10) de remplissage pour le vulcaniser sous pression de vapeur saturée. On sèche ensuite le cylindre (10). Un cylindre de stockage de gaz (10) ainsi formé, est constitué d'une masse sèche monolithique (50) remplissant une coque métallique (20). La masse (50) a une porositée d'environ 88 à 92 %, une densité comprise entre 250 g/l et 350 g/l, et une résistance à la compression de 250 à 550 psi.g.
Patent CA-2213466-C (CA)
Title: Inhibitors of microsomal triglyceride transfer protein and method
Inventor: BILLER SCOTT A
IPC: C07D217/22
Filed: 1996-02-01
Granted: 2009-09-08
Abstract: Compounds are provided which inhibit microsomal triglyceride transfer protein and thus are useful for lowering serum lipids and treating atherosclerosis and related diseases. The compounds have the structure (a, b, c or d) wherein R1 to R6, Q, and X are as defined herein.
Patent CA-2216434-C (CA)
Inventor: STRADER WALTER H
IPC: H01R11/26
Filed: 1997-01-31
Granted: 2003-04-15
Abstract: Système de détection de défauts d'arc dans un système de distribution d'électricité dans lequel un conducteur de ligne est connecté à un transformateur de puissance du réseau. Le système surveille la vitesse de variation du courant électrique dans le conducteur de ligne et produit un signal qui représente la vitesse de variation. Le système produit une impulsion chaque fois que la vitesse de variation dépasse un seuil prédéterminé, filtre le signal de vitesse de variation et/ou les impulsions pour éliminer sensiblement un signal ou une impulsion qui représente des variations du courant électrique en dehors d'une plage de fréquence sélectionnée, surveille les impulsions restantes pour détecter le moment où le nombre d'impulsions se produisant dans un intervalle de temps prédéterminé dépasse un seuil prédéterminé, et génère un signal de détection de défaut d'arc en réponse à l'apparition d'un nombre d'impulsions qui dépasse le seuil de l'intervalle de temps sélectionné.
Patent CA-2219205-C (CA)
Title: Digital watermarking
Inventor: WAKASU YUTAKA
IPC: H04N21/2389
Filed: 1997-10-23
Granted: 2001-07-03
Abstract: Digital watermarking of data, including image, video and audio data, is performed by repeatedly inserting the watermark into subregions or subimages of the data. Similarly, the watermark is repeatedly extracted from the subregions of the data.
Patent CA-2219716-C (CA)
Inventor: DATTA JAYANTA
IPC: F16D13/64
Filed: 1997-10-29
Granted: 2008-01-29
Abstract: A friction clutch having a friction plate and a pressure plate located within the friction clutch housing. The friction clutch has a backing plate that is positioned between the friction plate and the pressure plate with the backing plate being made from a harder material, such as steel, than the pressure plate which is made from a softer material, such as aluminum.
Patent CA-2220794-C (CA)
Inventor: CHALLIS STEPHEN DENIS
IPC: B01J29/90
Filed: 1997-12-02
Granted: 2004-01-20
Abstract: A process for increasing the yield of C3 and C4 olefins by injecting light cat naphtha together with steam into an upstream reaction zone of a FCC riser reactor. The products of the upstream reaction zone are conducted to a downstream reaction zone and combined with fresh feed in the downstream reaction zone.
Patent CA-2225855-C (CA)
Title: High-frequency amplifier
Inventor: SAKUSABE KENICHI
IPC: H04B1/04
Filed: 1997-12-23
Granted: 2000-10-10
Abstract: Input matching is achieved for a high-frequency range having a center frequency of 0.8 GHz by a capacitor and a coil  in an input matching circuit, and input matching is achieved for a high-frequency range having a center frequency of 1.9 GHz by another coil in the input matching circuit.  Output matching is achieved for a high-frequency range having a center frequency of 0.8 GHz by a capacitor and a coil in an output matching circuit, and output matching is achieved for a high-frequency range having a  center  frequency  of  1.9 GHz  by  another coil in the output matching circuit.
Patent CA-2234251-C (CA)
Title: System for facilitating the ordering and paying of services by means of a communication network
Inventor: DE BEURS JAAP RUDOLF
IPC: G06Q20/36
Filed: 1996-10-09
Granted: 2002-07-02
Abstract: The invention relates to a system (1) for electronic orders and payments by means of a communication network (6), such as a telephone network. A  facilitating unit (2) comprising a voice response system (21) and a communication server (22) makes it possible, with the aid of simple subscriber equipment (8, 10) and a smart card (9), to order services and to effect electronic payments. The facilitating unit (2) is designed so as to be readily scalable and expandable. Preferably, it is also possible to revalue a smart card (9) by way of the system (1) of the invention.
Patent CA-2236027-C (CA)
Inventor: ROESKE KLAUS JUERGEN
IPC: B23D5/00
Filed: 1996-10-29
Granted: 2004-05-18
Abstract: A method for machining an angularly disposed array of parallel longitudinally extending slots in a bore of a component, the method comprising the steps of: gripping said component (1) in a gripping means of a workholding device (2) mounted to a workholding spindle (3) indexable about a first axis; cutting said array of slots in said bore by a series of progressively deeper cutting strokes of a cutting tool (5), said tool mounted to a cutting spindle (7) rotatable about a second axis (8) substantially at right angles to and offset from said first axis; and the cutting of each slot followed by indexation of said workholding spindle (3); and during the cutting of at least one of said slots, relative movement between the component (1) and second axis (8) takes place due to movement of the component (1) along the first axis or movement of the second axis in a direction substantially parallel to said first axis or both. A one piece sleeve (34) for a rotary valve (31), the sleeve (34) comprising an array of inlet (26) and return (27) slots formed in the bore of the sleeve, the inlet slots (26) being stopped short of the axial extremities of the bore, the return slots (27) extending to one extremity of the bore providing an exit area for return oil when the sleeve is installed in the rotary valve, characterised in that at least one said return slot is also extended to the other axial extremity of the sleeve bore providing an entry area (24) for leakage oil when the sleeve is installed in the rotary valve, the entry area (24) provided for leakage oil being substantially smaller than the exit area provided for return oil.
Patent CA-2244735-C (CA)
Title: Method of managing the chemotherapy of patients who are hiv positive based on the phenotypic drug sensitivity of human hiv strains
Inventor: DE BETHUNE MARIE-PIERRE
IPC: C12Q1/68
Filed: 1997-01-24
Granted: 2010-10-12
Abstract: A method of managing HIV chemotherapy of patients who are HIV positive comprises transfecting a cell line susceptible to infection by HIV with a sequence, preferably that coding for RT  and protease, from the pol gene of HIV obtained from a patient and a HIV-DNA  construct from which the sequence has been deleted, culturing the transfected cells so as to create a stock of chimeric viruses, assessing the phenotypic sensitivity of the chimeric viruses to an inhibitor of the enzyme encoded by the pol gene of HIV and assigning a value thereto, constructing a data set comprising the value for chimeric virus sensitivity and the corresponding value for a chimeric wild-type strain of HIV, repeating the sensitivity assessment for at least two further inhibitors and thereby constructing at least three such data sets in total, representing the data sets in two-dimensional or three-dimensional graphical form such that the difference between the chimeric and wild-type sensitivities in the case of each data set provides a visual measure of the resistance of the chimeric stock to treatment by the inhibitor in question, and selecting the optimum inhibitor(s) on the basis of the graphical representation of the resistances so measured. The method yields phenotypic information on individual HIV infected patients on a large scale, economically and rapidly. The method is applicable to all currently available chemotherapeutic regimens and it is expected to be equally applicable to future chemotherapeutic regimens.
Patent CA-2250116-C (CA)
Inventor: GOODALE DAVID L
IPC: B01L3/00
Filed: 1997-05-30
Granted: 2006-07-25
Abstract: L'invention concerne un récipient (10) à puits monobloc, moulé par injection d'une pièce, adapté à des réactifs destinés à être utilisés dans un instrument clinique tel qu'un analyseur de protéines, normalement moulé en polyéthylène ou en plastique recyclable à haute densité. Le récipient se compose d'un ou de plusieurs puits, il utilise des bouchons classique et s'adapte facilement à un matériel de remplissage automatique. La cartouche (10) de réactif moulée d'une pièce est utilisée dans un instrument clinique, elle (10) comprend une pluralité de puits de stockage (24, 26) situés dans une ligne en une disposition fixe. La cartouche (10) de réactif présente un guide (16) au niveau d'une extrémité et pouvant venir au contact d'un moyen (40) ménagé sur l'organe de réception d'un analyseur afin d'empêcher le mouvement radial ou latéral de la cartouche (10). Chacun des puits (24, 26) présente des parois latérales (30) ainsi qu'un fond fermé (28), les parois latérales (30) présentent une position terminale supérieure comprenant une ouverture d'accès. On a prévu une enveloppe creuse solidaire (14) ouverte en son fond et enveloppant lesdits puits (24, 26) à partir d'un point situé au-dessous de la partie terminale, de manière à former un espace vide à l'intérieure de ladite enveloppe (14) autour de la partie extérieure des puits, pour permettre l'écoulement d'air conditionné autour des parois. Une rétention positive est obtenue par formation d'un orifice (67) à travers la paroi, dans lequel s'engage un téton (68) formé sur le moyen de rétention.
Patent CA-2260049-C (CA)
Inventor: NAIDU ARUN
IPC: H04Q7/00
Filed: 1997-07-11
Granted: 2006-03-21
Abstract: A communication system and method are provided for equalizing delay of transmission paths in a distributed antenna network. The distributed antenna network includes a plurality of remote antenna units, a central unit or a base station connected to the remote antenna units by transmission media, where each connection between the base station and one of the remote antenna units forms a separate transmission path having an associated delay time, a delay detector for determining the associated delay time of the separate transmission paths for each of the remote antenna units, and a delay compensator for adjusting the associated delay times in response to the delay detectors so that all of the associated delay times are substantially equalized. The system and method allow the delay parameters for the entire network to be set upon installation and then to be periodically updated without physical intervention by an operator. The detection and compensation allow for equalization of delay time differences that could not otherwise be compensated in the base stations of mobile stations of conventional systems and methods. Furthermore, the equalization synchronizes the bursts so that air frame timing between cells served by the remote antenna units is enhanced and the hand-off performance therebetween is improved.
Patent CA-2269004-C (CA)
Title: Packaged photocurable composition
Inventor: SHIMOTA STEVEN E
IPC: B65D1/02
Filed: 1997-09-18
Granted: 2007-06-19
Abstract: A packaged composition includes a vial having wall portions defining a chamber and a photocurable material in the chamber. The wall portions transmit less than about 1.0 % of actinic radiation, and at least one of the wall portions transmits light having wavelengths in at least part of the visible spectrum. In certain embodiments of the invention, the wall portions are flexible and the photocurable material is dispensed from the chamber through an outlet when the wall portions are squeezed together. In other embodiments of the invention, an element is floating in the photocurable material in the chamber to facilitate determination of the amount of photocurable material remaining in the chamber.
Patent CA-2270453-C (CA)
Inventor: STRUTT BERND
IPC: G01F23/284
Filed: 1999-04-30
Granted: 2002-08-06
Abstract: A level measuring device suitable for highly accurate measurements. A transmission pulse generator generates microwave pulses at a transmission repetition rate and transmits them through an antenna towards a material whose level is to be measured. Echo signal from the surface of the material are received by the antenna. A reference pulse generator generates reference pulses similar to the transmission pulses but at a reference repetition rate which differs form the transmission repetition rate by a small frequency difference. The echo signal and reference pulse are input to a first mixer which generates an intermediate frequency signal that, with respect to the echo signal, is slowed by a time dilation factor equal to the quotient of the transmission repetition rate and the frequency difference. A first subcircuit samples the intermediate frequency signal, the time interval between two successive samplings equaling a time unit. A differential signal generator generates a differential signal which changes with the frequency difference. A second subcircuit determines the period of the differential signal on the basis of the time unit. An evaluation unit determines an actual time interval between two points of the echo signal corresponding to the two sampling points.
Patent CA-2270930-C (CA)
Title: Transporting user data over a-bis and a-interfaces within a mobile telecommunications network
Inventor: GALYAS PETER
IPC: H04L12/20
Filed: 1997-10-28
Granted: 2006-11-28
Abstract: A synchronization frame is first formated and transmitted in accordance with the Global System for Mobile (GSM) 08.60 specification. After an initial synchronization procedure is accomplished between a transcoder/rate adaptor (TRAU) (40) and a particular base transceiver station (BTS) (50) serving a mobile station (60), a modified GSM 08.60 frame is thereafter used to transport greater user data payload across the established communications link. The modified frame replaces the synchronization bits included in the GSM 08.60 formatted data frame with user data to increase data payload from the conventional 13.5 Kbit/s to a more desirable 14.4 Kbit/s without altering the standardized 16 Kbit/s transmission rate supported by the IWF and the BTS  (50).
Patent CA-2280408-C (CA)
Inventor: SZAMBOTI ANTHONY F
IPC: H01Q1/12
Filed: 1999-08-16
Granted: 2002-05-14
Abstract: A support system for an antenna having a pair of support arms (2) each secured at one end to a clamp (1) and having slots (3) formed at the other end to secure a support lug (4). The support lug has a first end (5) to receive a clamping mechanism (6) for securing the lug to a support pipe or column, and a second end (7) having at least three apertures (8,9) for attaching the lug to the support arms by means of fasteners (10). The slots in the support arms and support lug allow the support system to be secured to support pipes having a wide range of diameters by allowing each support arm to be secured to the support lug while forming any one of a range of angles therewith and while not requiring removal of the fastening bolts. In addition, each of the support arms can be secured to a hinge (11) pivoting with the antenna, allowing the support arms to secure the support lug which preferably stays perpendicular with respect to the support pipe while the antenna can be tilted about an axis perpendicular to the support pipe.
Patent CA-2281538-C (CA)
Inventor: ELEFTHERIADIS ALEXANDROS
IPC: H04N5/44
Filed: 1998-02-13
Granted: 2006-01-03
Abstract: En tant qu'informations à traiter au niveau d'un terminal audiovisuel (AV) ou vidéo basé sur des objets, un train de binaires orienté objet comprend des objets, des informations de composition ainsi que des informations de démarcation de scènes. Une telle structure de train de binaires permet d'éditer en direct, par exemple de couper-coller, d'insérer/effacer, de grouper et de faire des effets spéciaux. En vue d'obtenir une édition facile, des objets audiovisuels et des informations de composition relatives à ceux-ci sont transmis sur des canaux logiques séparés (LC) ou sont accessibles par ceux-ci. Des objets possédant une durée de vie dans le décodeur, allant au-delà de leur temps de présentation initial, sont mis dans une antémémoire, aux fins de réutilisation jusqu'au temps d'expiration choisi. Ce système comprend un démultiplexeur (1), un module de commande (2) de fonctionnement du terminal audiovisuel, des mémoires tampon d'entrée (3), des décodeurs (4) d'objets audiovisuels, des mémoires tampon (4') de données décodées, un éditeur de liens (5), un affichage (6) et une antémémoire d'objets (7).
Patent CA-2281962-C (CA)
Title: Emulsion including a hydrophilic thickening compound and a thickening copolymer, compounds including the said emulsion, and uses
Inventor: LORANT RALUCA
IPC: A61Q19/00
Filed: 1999-09-14
Granted: 2006-04-04
Abstract: Emulsions with a water and an oil phase are stabilized by incorporating a hydrophilic thickener and a copolymeric thickener containing both hydrophobic and hydrophilic groups. An emulsion comprises an aqueous phase and an oil phase together with (a) at least one hydrophilic thickener compound and (b) at least one copolymeric thickener comprising at least one hydrophobic group in an amount sufficient to impart partial or complete solubility in the oil phase, and at least one hydrophilic group in an amount sufficient to cause thickening of the oil phase; the hydrophilic group being selected from 3-6 C  alpha , beta -ethylenically unsaturated monocarboxylic acids, 4-6 C  alpha , beta -ethylenically unsaturated dicarboxylic acids, and monoesters or monoamides of these diacids.
Patent CA-2290536-C (CA)
Title: Paint and coating remover
Inventor: BALDWIN ROBERT E
IPC: C11D3/43
Filed: 1998-05-22
Granted: 2008-07-22
Abstract: This invention concerns a composition useful as a paint remover, comprising: alkylene carbonate such as propylene carbonate or ethylene carbonate, hydrog en peroxide, and water, and optionally an alcohol such as benzyl alcohol. In another broad respect, this invention concerns a process for removing paint, comprising: applying a composition containing alkylene carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. In another broad respect, this invention is a composition useful as a paint remover, comprising: dialkyl carbonate, hydrogen peroxide, and water, optionally containing an alcohol, optionally containing a glycol ether. In another broa d respect, this invention is a process for removing paint, comprising: applyin g a composition containing dialkyl carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blisterin g or bubbling of the paint.