baber/WOPTO huggingface dataset:
Patent CA-2250123-C (CA)
Inventor: LOW WILLIAM R
IPC: F25J1/02
Filed: 1997-03-19
Granted: 2004-01-27
Abstract: A method and associated apparatus for removal of benzene, other aromatics and/or other heavier hydrocarbon components from a methane-based gas stream by condensation and stripping. It is desirable to remove benzene and other aromatics to prevent fouling and plugging of processing equipment and it is desirable to recover other heavier hydrocarbon components because of their value. Cooled feed stream (118) is fed to a column (60) and separated into methane-rich vapor stream (120) and benzene/aromatics/heavies liquid (114). The liquid (114) is sent to a heat exchanger (62) to recover refrigeration. Warm dry gas (108) is cooled in the heat exchanger (62) and delivered as stripping gas (109) to the column (60).
Patent CA-2250878-C (CA)
Title: Dispositif pour le traitement thermique de matieres en vrac dans des convoyeurs a vis
Inventor: STRICKER KLAUS
IPC: F26B3/30
Filed: 1997-03-28
Granted: 2005-08-23
Abstract: L'invention concerne des dispositifs servant au traitement thermique ciblé de matières en vrac. Selon l'invention, ces dispositifs sont conçus sous la forme de convoyeurs à vis pourvus de sources de rayonnement de chaleur destinées à fournir de l'énergie calorifique. L'invention concerne en outre un procédé de séchage de matières plastiques en vrac.
Patent CA-2252935-C (CA)
Title: Straw chopper
Inventor: HIRSCH WALTER
IPC: A01F12/40
Filed: 1998-12-01
Granted: 2003-02-11
Abstract: A straw chopper arrangement for an agricultural combine wherein the chopper is provided two vertically arranged rotors. The rotors are provided with a number of circumferentially spaced radially extending impeller blades. The outer ends of the impeller blades are provided with pivotally mounted flails. The flails are vertically spaced from one another. The straw chopper arrangement is also provided with a chopper housing for receiving the rotors. The housing having at least two walls that are provided with inwardly extending shear bars which are located in the vertical space defined by vertically adjacent flails.
Patent CA-2254788-C (CA)
Title: Procede pour preparer des phtalides
Inventor: HANNEBAUM HEINZ
IPC: C25B3/25
Filed: 1997-04-28
Granted: 2005-03-01
Abstract: L'invention concerne un procédé pour préparer des phtalides par réduction cathodique d'acide phtalique ou de dérivés d'acide phtalique, dans lesquels les unités acide carboxylique peuvent être substituées par des unités pouvant être dérivées d'unités acide carboxylique lors d'une réaction de condensation, et un ou plusieurs atomes d'hydrogène de l'unité o-phénylène de l'acide phtalique peuvent être substitués par des radicaux inertes. Ce procédé est caractérisé en ce que la réduction s'effectue dans un solvant organique contenant moins de 50 % en poids d'eau et dans une cellule électrolytique non divisée.
Patent CA-2255495-C (CA)
Title: Swimming pool steps
Inventor: WILSON JEAN L
IPC: E04H4/14
Filed: 1998-12-11
Granted: 2006-03-21
Abstract: A drop-in stair assembly for a pool which comprises alternating treads and risers forming a series of steps extending between first and second side walls and with a pair of L-shaped connectors, each of the connectors having first and second arms and an elbow portion, the arms having a plurality of attachment locations such that the stair unit can be aligned in both a horizontal and a vertical fashion with respect to a pool wall and rim.
Patent CA-2258944-C (CA)
Inventor: LOW WILLIAM RAYMOND
IPC: F28F9/22
Filed: 1997-06-11
Granted: 2004-02-24
Abstract: In multistage refrigeration compression (10), where liquid refrigerant withdraw from a core-in-shell type heat exchanger (40) connected to a high compression stage (16) is passed to a similar exchanger (70) connected to a lower compression stage (14), liquid level stability in the higher compression stage exchanger (40) is improved by providing an enlarged surge volume. A baffle plate (50) transversing a lower portion of the shell divides the shell into a cooling zone that contains the cores, and a discharge zone that is part of the surge volume. The height of the baffle is selected to facilitate maintenance of at least a minimum functional liquid level in the shell. Liquid refrigerant withdrawn from the discharge zone of the high-stage shell is supplied to the cooling zone of a shell connected to a lower compression stage. The liquid level in the shell is maintained by manipulating flow to liquid refrigerant that is flashed into the cooling zone of the higher compression stage shell.
Patent CA-2266886-C (CA)
Title: Novel zirconium urethane catalysts
Inventor: PICCI MARIE E
IPC: B01J31/38
Filed: 1998-03-16
Granted: 2010-01-19
Abstract: The present invention is directed to novel metal organocomplexes as catalyst s for the reaction of compounds with isocyanate and hydroxy functional groups to form urethane and/or polyurethane and the proce s employing such catalysts. More particularly, the present invention is directed to novel complexes of zirconium or hafnium with diketones or alkylacetoacetoates. These novel catalysts are useful for the production of urethanes and polyurethanes which are important in man y industrial applications, such as: coatings, foams, adhesives, sealants, and reaction injection molding (RIM) plastics.
Patent CA-2274635-C (CA)
Inventor: PRAISWATER MICHAEL R
IPC: G09F9/00
Filed: 1997-11-17
Granted: 2005-06-21
Abstract: An amplifier which outputs a nonlinear function in response to a linear input. The nonlinear response is a piece-wise linear approximation. The circuit includes an op amp which outputs a ramping voltage and a series of stages which change the slope of the ramping voltage. As the output of the op amp reaches a particular breakpoint, an additional stage of the circuit is activated so as to change the slope of the output.      The new line segment has a new slope such that the combination of all these stages approximates a nonlinear response.
Patent CA-2289044-C (CA)
Title: Procede de fabrication de compositions particulaires
Inventor: WOOD WILLIAM MALCOLM LOGAN
IPC: G03G9/08
Filed: 1998-04-01
Granted: 2006-08-08
Abstract: L'invention se rapporte à un processus permettant de produire une composition particulaire. Ce processus consiste (a) à former une première dispersion contenant un premier type de particules stabilisées dans un premier fluide au moyen d'une première espèce se trouvant dans un état initial, cette première espèce pouvant passer d'un état initial à un état ultérieur, l'état initial assurant (directement ou non) plus de stabilité aux particules contenues dans la dispersion que l'état ultérieur; (b) éventuellement, à former une seconde dispersion contenant un second type de particules stabilisées dans un second fluide, et miscibles avec le premier fluide, au moyen d'une seconde espèce se trouvant à l'état initial, ou dans un autre état initial, cette seconde espèce pouvant également passer de l'état initial, ou d'un autre état initial, à l'état ultérieur, ou à un autre état ultérieur, ledit état initial assurant (directement ou non) plus de stabilité aux particules se trouvant dans la dispersion que l'état ultérieur; (c) après l'étape facultative consistant à mélanger la première et la seconde dispersion, dans le cas où la seconde dispersion a été formée lors de l'étape (b), à modifier l'état, ou les états, de la première et/ou de la seconde espèce facultative, c'est-à-dire à les faire passer de l'état initial, ou des états initiaux, à l'état ultérieur, ou aux états ultérieurs, en vue d'induire sensiblement une association entre les particules dispersées et ce, dans le but de former des agrégats; et (d) à lier les particules les unes aux autres à l'intérieur des agrégats. Un mode de réalisation préféré du processus consiste à mélanger deux dispersions aqueuses de particules (par exemple, des particules à pigment et des particules de polymère de latex formées grâce à une polymérisation en émulsion). Ces dispersions sont stabilisées par des surfactants ioniques présentant le même signe de charge. L'association des particules en agrégats est induite par réglage du pH et ce, dans le but de réaliser la protonation ou la déprotonation sélective des surfactants. Les agrégats sont regroupés par agrégation en des matrices lâches qui sont condensées les unes avec les autres en vue de former des particules qui peuvent être utilisées dans des toners électroreprographiques.
Patent CA-2289440-C (CA)
Title: Transmitting system for small-sized vehicle
Inventor: KIHARA TERUO
IPC: B62M7/02
Filed: 1999-11-12
Granted: 2004-07-06
Abstract: In a transmitting system for a small-sized vehicle in which a crankshaft of an engine and an input shaft of a multi-stage transmission are connected to each other through a fluid transmitting device, the fluid transmitting device and a shifting clutch being mounted on the crankshaft and connected in series to each other. One of the fluid transmitting device and the shifting clutch is connected to the crankshaft, and the other is connected to the input shaft of the multi-stage transmission through a primary reducing device. Thus, when the multi-stage transmission is to be shifted, the shifting operation of the multi-stage transmission can be carried out lightly, irrespective of a creep phenomenon of the fluid transmitting device, by bringing the shifting clutch into its OFF state. Moreover, the burden of torque by the fluid transmitting device and the shifting clutch mounted on the crankshaft which is rotated at a higher speed than that of the input shaft of the transmission is relatively small. Therefore, the capacities of the fluid transmitting device and the shifting clutch can be reduced correspondingly, leading to a reduction in size of the fluid transmitting device and the shifting clutch.
Patent CA-2290696-C (CA)
Title: Immunopotentiating composition
Inventor: FUJIOKA KEIJI
IPC: A61K9/70
Filed: 1998-05-18
Granted: 2010-09-14
Abstract: The present invention provides an immunopotentiating composition which comprises an antigen or antigen-inducing substance, and a carrier comprising a biocompatible material for effectively increasing an immune response derived from an antigen. The present invention further provides a method of producing an antibody by administering said immunopotentiating composition to a mammal or bird, thereby modulating the immune response in said mammal or bird and recovering the antibody produced.
Patent CA-2290802-C (CA)
Inventor: SCHAEFFER CHRISTIAN
IPC: H05K7/20
Filed: 1999-11-24
Granted: 2008-08-05
Abstract: Power electronic component (28) comprises a first composite structure (19) for thermal transfer and electric insulation, comprising two conducting or semiconducting layers (18) onto which is mounted at least one power semiconducting circuit (20) with contacts (23) connected to an array of conducting elements insulated from each other, this array being integrated into a second composite structure (119) for thermal transfer and electric insulation made of at least one semiconductor layer (110). One of the first and second composite structures comprises internal passages (12,112) for heat exchanging fluid.
Patent CA-2291751-C (CA)
Inventor: REIMER JENS-PETER
IPC: F42B5/067
Filed: 1998-05-28
Granted: 2005-12-06
Abstract: La présente concerne un procédé permettant de fabriquer une cartouche constituée d'une douille et d'un projectile, qui se caractérise en ce que, une fois l'encartouchage terminé, on applique, de façon contrôlée, de façon contrôlée, un produit d'étanchéité à base d'adhésif acrylique, agissant par capillarité, sur l'espace formé lors de l'insertion du projectile dans la douille, au niveau de l'orifice intérieur de douille, en une quantité suffisante pour rendre complètement étanche ledit espace.
Patent CA-2294010-C (CA)
Inventor: MONJURE NOEL A
IPC: E21B23/14
Filed: 1998-06-09
Granted: 2006-08-01
Abstract: A casing annulus remediation system for overcoming problems associated with lowering a flexible hose (51) into an annulus (21) between strings (13, 15, 17, 19) of casing in a petroleum well by pressurizing the hose (51) so that the hose is rigid and may be forced down the annulus. A nozzle (65) is affixed to the lower end of the hose. The hose may be inserted several hundred feet into the well. Therefore, the hose (51) is pressurized to maintain rigidity to keep the hose from winding about the well during deployment. To keep the hose rigid internal pressure is maintained in the hose (51). The nozzle (65) is provided with a burst disk (69) that holds the pressure. Once the hose is lowered to a desired depth, an operator may increase the pressure sufficiently in the hose to break the disk (69), thereby allowing heavy liquid to flow out.
Patent CA-2296137-C (CA)
Title: A coding/modulation scheme selection technique
Inventor: BUDKA KENNETH C
IPC: H04W28/18
Filed: 2000-01-14
Granted: 2003-10-28
Abstract: In a wireless data network, such as a General Packet Radio Service (GPRS) network, a transmitter uses one of k coding/modulation schemes for transmitting data. The transmitter initially selects a coding/modulation scheme, C, as a function of carrier-to-interference ratio (C/I) measurements. The transmitter then calculates the number of blocks, B, required to transmit a number of data packets, D, using the coding/modulation scheme C. In addition, the transmitter calculates the number of blocks required to transmit the number of data packets, D, for each coding/modulation scheme that is stronger than the selected coding/modulation scheme C. The transmitter finally selects that coding/modulation scheme that results in transmitting the number of data packets D in B blocks using the strongest coding/modulation scheme. As a result, each block is transmitted using the strongest coding/modulation scheme available.
Patent CA-2299866-C (CA)
Title: Document and task coordination system for a computer
Inventor: PERROUX FRANCOIS
IPC: G06F17/00
Filed: 2000-03-01
Granted: 2009-02-10
Abstract: A computer system operation method for allowing a user to work on interrelated documents includes forming groups of software tools. Different groups of software tools are used to perform different tasks on documents in a software system. Documents in the software system have different document types. The document types are functionally associated with the different groups of software tools. The method monitors a user's selection of a second group of software tools, when the user is using a first workbench to work on data contained in a first document. The method invokes a second document, upon the user's selection of a second group of software tools. The second document is of a document type that is associated with the second workbench. The method may include generating referencing data, upon the invocation of the second document, and storing the referencing data in the first document, where the referencing data refer to all or part of the data in the second document. The method may include generating referencing data, upon the invocation of the second document, and storing the referencing data in the second document, where the referencing data refer to all or part of the data in the first document.
Patent CA-2302218-C (CA)
Title: Reseau de commutation par paquets
Inventor: O'NEILL ALAN WILLIAM
IPC: H04L47/52
Filed: 1998-09-09
Granted: 2007-11-06
Abstract: On décrit une nouvelle approche qui permet d'effectuer une opération à la fois en mode retard limité et en mode effort optimal dans un noeud de réseau de commutation par paquets. Le mode retard limité peut fournir une limitation de retard de bout en bout mais, à la différence du Protocole de réservation de ressources (RSVP) et des Services garantis combinés proposés au sein du Groupe IETF, il le fait avec une complexité minimale. Les noeuds de réseau sont munis de tampons de paquets doubles associés à des services de type retard limité ou effort optimal, respectivement. Un dimensionnement approprié, au besoin réalisé selon des procédés CAC, permet d'assurer que la limite de retard impérative est fixée pour les paquets admis dans le tampon. On décrit des procédés CAC applicables à des flux de paquets de dimension aussi réduite qu'un simple paquet. On décrit également un moyen de supprimer la phase traditionnelle de signalisation du réseau. On décrit enfin une architecture connexe s'utilisant avec des hôtes.
Patent CA-2303712-C (CA)
Inventor: KRALING KONRAD
IPC: A01H6/20
Filed: 1997-12-19
Granted: 2006-02-14
Abstract: The invention is a Brassica plant comprising a homozygous fertility restorer gene for ogura cytoplasmic male sterilty, in addition to oilseed, meal and oil produced fro m the plant, and the use of oilseed of the plant for preparing oil and/or meal. Upon pollination, the plant yields oilseeds having a total glucosinolate content of not more than 30.mu.mol/gram, not more than 24.mu.mol/gram or not more than 20.mu./gram and, optionally, an erucic acid content of no more than two percent by weight based upon the total fatty acid content. The Brassica plant may be Brassica napus, Brassica campestris, or Brassica juncea.
Patent CA-2304701-C (CA)
Title: Environmentally benign anti-icing or deicing fluids
Inventor: SAPIENZA RICHARD
IPC: C09K3/18
Filed: 1998-09-29
Granted: 2006-11-28
Abstract: The present invention provides deicing compositions which are environmentall y benign, a process for producing the composition from certain waste process streams, and methods of deicing and/or anti-icing .
Patent CA-2307888-C (CA)
Title: Spine distraction implant
Inventor: WINSLOW CHARLES J
IPC: A61B17/66
Filed: 1998-10-27
Granted: 2007-09-18
Abstract: A spine distraction implant (1200) alleviates pain associated with spinal stenosis, and facet arthropathy by expanding the volume in the spine canal, or neural foramen. The implant provides a spinal extension stop (1204) while allowing freedom of spinal flexion.
Patent CA-2309214-C (CA)
Inventor: WAKE ROBERT H
IPC: A61B5/00
Filed: 1998-11-25
Granted: 2004-07-20
Abstract: Ce circuit de photodétection utilisable dans un appareil d'imagerie laser est pourvu d'un photodétecteur (30) conçu pour réagir à une impulsion laser émanant d'un sein analysé par scanographe, d'un circuit de pré-amplification multi-gain (40) raccordé à la sortie du photodétecteur, d'un commutateur (140) raccordé à la sortie du circuit de pré-amplification et servant à échantillonner le signal de sortie du photodétecteur, d'un circuit avec capacité et résistance (RC) (140) servant à étaler le signal échantillonné, d'un amplificateur (142) raccordé à la sortie du circuit RC et d'un intégrateur (146) permettant d'intégrer chaque échantillon de signal. Un circuit de résolution temporelle (108) est relié opérationnellement au commutateur afin d'ouvrir et de fermer celui-ci à intervalles réguliers durant la sortie du signal. Un circuit de synchronisation impulsions laser (104) est relié opérationnellement au circuit de résolution temporelle et génère un signal destiné à celui-ci lorsque l'impulsion laser est censée parvenir au photodétecteur.
Patent CA-2315053-C (CA)
Title: Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel
Inventor: BETHSCHEIDER GERHARD
IPC: H04B17/00
Filed: 1998-12-17
Granted: 2005-02-08
Abstract: For determining the operating point of a non-linear amplifier (2) of a commmunication channel (1), for example of a transponder in a communication satellite, a first input signal (I1) is transmitted through the communication channel (1) at a power level (PI1) which drives the non-linear amplifier (2) in a non-linear operation mode. In addition, a second input signal (i2) is transmitted through the communication channel (1) simultaneously with the first input signal (h). The second input signal (i2) is transmitted at a level below the level of the first input signal (I1). If the contribution of the second input signal (i2) to the total input of the non-linear amplifier is small, the operating point of the non-linear amplifier is determined almost only by the first input signal. Therefore, the output power (P02) corresponding to the second signal (i2) is determined most strongly by the input power (PI1) of the first signal (I1). The operating point (I1, P0) of said non-linear amplifier (2) is determined on the basis of an output signal (02) of said communication channel (1) corresponding to said second signal (i2).
Patent CA-2317123-C (CA)
Title: Radiotelephones having contact-sensitive user interfaces and methods of operating same
Inventor: THORNTON CURTIS WAYNE
IPC: H04M1/72469
Filed: 1998-12-18
Granted: 2007-05-29
Abstract: The present invention provides radiotelephones and methods of operation thereof in which control of a radiotelephone's display and/or radiotelephone communications transceiver is effected using a contact-sensitive transducer such as a resistive or capacitive touch strip mounted on the radiotelephone. The contact-sensitive transducer produces an output signal that characterizes contact, e.g., contact of an object such as a user's finger, with a surface of the transducer. The output signal may be processed by a controller to control display of information on the display and to initiate actions associated with displayed items. For example, the contact-sensitive transducer may be used to control display of graphical objects such as rows or columns on the display, and initiation of functions associated with the graphical objects. Preferably, the contact--sensitive transducer comprises an elongate strip and produces an output signal that characterizes contact with the strip along its elongate axis. In one embodiment, two of such elongate strips are mounted on respective sides of the radiotelephone. In another embodiment, an elongate strip is mounted on a front face of the radiotelephone.
Patent CA-2322514-C (CA)
Title: Structure with magnetic properties
Inventor: WILTSHIRE MICHAEL CHARLES KEOGH
IPC: H01Q17/00
Filed: 1999-12-23
Granted: 2009-08-18
Abstract: A structure (2) which exhibits magnetic properties when it receives electromagnetic radiation (20) is formed from an array of capacitive elements (4) each of which is smaller, and preferably much smaller, than the wavelength of the radiation. Each capacitive element (4) has a low resistance conducting path associated with it and is such that a magnetic component of the received electromagnetic radiation (20) induces an electrical current to flow around said path and through the associated element. The creation of internal magnetic fields generated by the flow of the induced electrical current gives rise to the structure's magnetic properties.
Patent CA-2323368-C (CA)
Inventor: HASSIBI BABAK
IPC: H04B7/08
Filed: 2000-10-16
Granted: 2005-05-17
Abstract: A method is disclosed for signal detection in a wireless communication system that includes multiple-antenna arrays for transmission and reception.  The method involves multiplying a vector of signals collected from respective receiving antennas by a nulling vector, such that the resulting vector product provides an estimated value corresponding to a specific one of the transmitted signals. A respective such multiplication is performed to detect each of the transmitted signals. In contrast to related methods of the prior art, each nulling vector is obtained from a channel matrix of estimated channel coefficients without performing any matrix inversion operations, and only a single pseudoinverse related to the channel matrix is computed. As a result, numerical stability is improved and the computational complexity of the method is reduced by an order of magnitude relative to methods of the prior art.