baber/WOPTO huggingface dataset:
Patent CA-2277309-A1 (CA)
Title: Crystalline polyurethane thermoplastic material and method for the manufacture thereof
Inventor: AYUSO PIQUERAS JOSE LUIS
IPC: C08G18/08
Filed: 1998-11-18
Abstract: The invention relates to a compound of general formula (I) wherein 1< f < 500;  1 < f'15; R and R' .ident. alkyl or aryl and X has formula (II), wherein 2 < n < 140; 1 < (n+n') < 51. The inventive method consists in reacting a polyether-polycaprolactone block copolymer of formula (I) having a molecular weight of 1000-6000, formula (IIa), with a chain developer of formula HO-R'-OH and a diisocyanate of formula HCN-R-NCO.
Patent CA-2278817-A1 (CA)
Inventor: SHEN TEK-MING
IPC: H04B10/29
Filed: 1999-07-26
Abstract: Substantial reduction in crosstalk and improved scalability for supporting high channel counts in dense wavelength division multiplexed (DWDM) systems is achieved in an optical demultiplexer arrangement that partitions the total number of input optical channels into separate demultiplexer modules, demultiplexes smaller groups of optical channels in the separate demultiplexer modules, and filters the individual optical channels at the outputs of the separate demultiplexer modules. Partitioning the total number of channels into smaller demultiplexing groups and post-filtering a reduced number of demultipexed optical channels reduces the number of non-adjacent channels that can contribute to the total crosstalk level. The modularity of the optical demultiplexer arrangement results in smaller device footprints and smaller free spectral ranges associated with the demultiplexer modules. This modularity also allows for future system upgrades without redesign and without disruption to existing service. In one illustrative embodiment, the optical demultiplexer arrangement includes a splitter or filter for directing the multi-wavelength input optical signal to one or more demultiplexer modules. Each of the demultiplexer modules separates a received multi-wavelength optical signal into individual wavelength channels. The individual wavelength channels are then supplied to bandpass post-filters which are coupled to each of the outputs of the demultiplexer modules.
Patent CA-2279320-A1 (CA)
Title: Turbogenerator power control system
Inventor: EDELMAN EDWARD C
IPC: H02P9/04
Filed: 1999-07-29
Abstract: A power control system for a turbogenerator which provides electrical power to one or more pump-jack oil wells. When the induction motor of a pump-jack oil well is powered by three-phase utility power, the speed of the pump-jack shaft varies only slightly over the pumping cycle but the utility power requirements can vary by four times the average pumping power.   This power variation makes it impractical to power a pump-jack oil well with a stand-alone turbogenerator controlled by a conventional power control system. This power control system comprises a turbogenerator inverter, a load inverter, and a central processing unit which controls the frequency and voltage/current of each inverter.      Throughout the oil well's pumping cycle, the central processing unit increases or decreases the frequency of the load inverter in order to axially accelerate and decelerate the masses of the down hole steel pump rods and oil, and to rotationally accelerate and decelerate the masses of the motor rotors and counter balance weights. This allows kinetic energy to be alternately stored in and extracted from the moving masses of the oil well and allows the oil pumping power to be precisely controlled throughout the pumping cycle, resulting in a constant turbogenerator power requirement.
Patent CA-2284483-A1 (CA)
Title: Mixtures of at least two reverse transcriptase inhibitors and hydroxycarbamide, in particular for inhibiting retroviral spread
Inventor: VILA JORGE
IPC: A61P37/04
Filed: 1997-03-20
Abstract: Composition as a medicament, in particular for use in inhibiting the spread of a retrovirus, comprising at least two different reverse transcriptase inhibitors and hydroxycarbamide.
Patent CA-2300527-A1 (CA)
Inventor: BAHMAN MIR DAVOOD
IPC: C09D191/00
Filed: 2000-03-07
Abstract: A method of re-using rubber comprising providing a batch of vulcanised rubber for re-cycling and de-vulcanising or de-polymerising the batch of rubber by heating to a temperature of from 220°C to 350°C in the presence of a hydrocarbon.
Patent CA-2301178-A1 (CA)
Inventor: DOWNES JOHN R
IPC: B61G9/22
Filed: 1998-10-02
Abstract: A lightweight and topless draft arm (20) is disclosed for use in a railway car. The draft arm (20) includes an open top surface (30) with the metal layer removed, lateral support members (48, 50, 52) and tiebars (44) transversing the side walls (26, 28) for greater draft arm strength, and thinner side walls (26, 28) below the key slots (64). Removal of the top surface (30) of the draft arm (20) eliminates the traditional double layer of material formed by the bottom of the car body and the top of the draft arm (20). Effectively, the bottom of the car body becomes the top of the draft arm (20) resulting in a lighter weight railway car.
Patent CA-2303034-A1 (CA)
Inventor: HYOBU YUKIHIRO
IPC: H01L21/673
Filed: 2000-03-29
Abstract: Disclosed is a thin-plate accommodating/transporting container including a container body for accommodating and supporting a plurality of thin plates while keeping the interior of the container clean, comprising: positioning means, provided at the container body, for accurately adjusting a placement position of the container body; lid receiving portion which is provided in the container body and to which the lid is attached; and engagement means, provided at the lid receiving portion, for engaging with various types of lids of different attachment methods.
Patent CA-2306091-A1 (CA)
Title: System and method of providing calling-line identification (cli) information to a mobile terminal in a radio telecommunications network
Inventor: TRAN HUNG
IPC: H04Q3/72
Filed: 1998-09-29
Abstract: A system and method in a radio telecommunications network of storing calling line identification (CLI) information when a called mobile terminal (15) is not available to receive the CLI information, and forwarding the CLI information to the called mobile terminal when the terminal becomes available. When an incoming call for the mobile terminal is received in a gateway mobile switching center (G-MSC) (12), the Home Location Register (HLR) (13) or the visited MSC (V-MSC) (14) where the mobile terminal is operating determines whether the mobile terminal is available. If not, the G-MSC sends a short message service (SMS) point-to-point (PTP) message (28) to a message center (MC) (16) and includes the CLI information. The MC is notified when the mobile terminal becomes available. The MC then forwards the CLI information to the VMSC in an SMS PTP message (32). The V-MSC sends the CLI information to the mobile terminal in an IS-136 R-DATA message (34) or other appropriate data message.
Patent CA-2307308-A1 (CA)
Inventor: KOJIMA JUN
IPC: A61K31/045
Filed: 1998-10-12
Abstract: A remedy for Ménière disease, containing erythritol as the active ingredient. The endolymphatic pressure can be significantly lowered by the oral administration of a therapeutically efficacious dose of erythritol as an active substance.
Patent CA-2308156-A1 (CA)
Title: Hearing aid comprising an array of microphones
Inventor: BERKHOUT AUGUSTINUS JOHANNES
IPC: H04R3/00
Filed: 1998-10-20
Abstract: Hearing aid for improving the hearing ability of the hard of hearing, comprising an array of microphones, the electrical output signals of which are fed to at least one transmission path belonging to an ear. Means are provided for deriving two array output signals from the output signals of the microphones, the array having two main sensitivity directions running at an angle with respect to one another and each of which is associated to an array output signal. Each array output signal is fed to its own transmission path belonging to one ear of a person who is hard of hearing.
Patent CA-2309222-A1 (CA)
Title: Skate sharpener
Inventor: WILSON MURRAY DAVID
IPC: B24B3/00
Filed: 2000-05-23
Abstract: A skate sharpening apparatus includes a skate blade holding device, the skate blade sharpening device having a horizontally mounted sharpening wheel which is rotatably driven, and wherein the skate holding device has first and second jaws for contacting opposite sides of a skate blade. First and second pivot arms each having first and second ends with the pivot arms being mounted intermediate the first and second ends are arranged such that the first ends of each of the arms are connected to the first and second jaws respectively. A linearly moveable actuator moves second ends of each of said first and second pivot arms, the linearly moveable actuator causing each of the pivot arms to move an equal distance and therefore move each of the jaws in equal distance, with a center line of the linearly moveable actuator lying in the same plane as a center line extending through a skate blade held between the jaws and a center line extending through the sharpening wheel. The arrangement is such that a perfectly centered sharpening of the skate blade is achieved irregardless of the skate blade width.
Patent CA-2310796-A1 (CA)
Inventor: KIPPING MATTHIAS
IPC: B21B45/08
Filed: 2000-06-06
Abstract: In a method and a device for descaling a metal strip, the metal strip is guided in a transport direction from a first roll stand to a second roll stand. A descaling device is positioned between the first and second roll stands. A descaling liquid is sprayed onto the metal strip from a working distance relative to the metal strip via the descaling device. The metal strip is moved at the location of the descaling device by a forced deflection amount in a direction transverse to the transport direction via an advancing element. A position of the descaling device is adjusted based on the forced deflection amount such that the working distance stays the same.
Patent CA-2314059-A1 (CA)
Inventor: WAKASHIRO TERUO
IPC: B60L50/15
Filed: 2000-07-18
Abstract: The control system for a hybrid vehicle with a combustion engine (E) is provided for outputting driving force, an electric motor (M) for generati ng a force for assisting the output from the engine, and a power storage unit ( 3) for supplying a power to the motor and for storing energy regenerated by the motor when the vehicle decelerates. The control system comprises: an assistance determining device (S125, S136) for determine whether to assist the output from the engine by the motor, depending on the driving condition of the vehicle a first assistance amount determining device (S239) for determining a first assistance amount, depending on the driving condition of the vehicle, when the assistance determining device determines to perform the assist: a second assistance amount determining device (S401) for determining a second assistance amount (SCRAST), when a driver's intention to accelerate the vehicle exceeds a predetermined standard: and an assistance control device (1) for driving the motor to assist the output fro m the engine, based on the first assistance amount when a driver's intention t o accelerate the vehicle does not exceed a predetermined standard, and based on the second assistance amount when the driver's intention to accelerate the vehicle exceeds the predetermined standard.
Patent CA-2314568-A1 (CA)
Title: Contact-connector for mobile telephone apparatuses
Inventor: ILLG MANFRED
IPC: H04M1/02
Filed: 2000-07-20
Abstract: A contact-connector module (10) for installation in mobile telephone apparatuses for the purpose of connecting the said apparatus to an external connection device, such as a motor vehicle connection, data plug, mains apparatus and the like, having an arrangement (13, 16) consisting of signal contacts, coaxial antenna contacts and supply-voltage contacts comprises an elongated/flat insulating body (11) in which the signal, coaxial antenna and supply-voltage contact, are :held and on the upper side (18) and underside (21) of which the contact-connecting ends (17, 22, 26, 31, 32, 33) are held in a freely accessible manner.
Patent CA-2329650-A1 (CA)
Inventor: YAMADA NORIYUKI
IPC: F01L1/18
Filed: 2000-12-27
Abstract: A valve operating system in an internal combustion engine includes a switchover pin which is movable between an associatively operating position where adjacent ones of rocker arms are operated in association with each other, and an associative-operation releasing position where the associative-operation is released, the switchover pin receiving at axially opposite ends thereof a hydraulic pressure force acting toward the associatively operating position and a spring force acting toward the associative-operation releasing position, a cylindrical roller shaft which is fixed to one of the adjacent rocker arms. and into which the switchover pin is slidably fitted in response to the movement thereof toward the associatively operating position, and a roller rotatably carried on the roller shaft to come into rolling contact with a cam provided on a camshaft. In this valve operating system, at least one of axially opposite end surfaces of the roller shaft foamed of a maternal harder than that of the one rocker arm, which receives the switchover pin, protrudes from a side surface of the one rocker arm. Thus, a wear powder can be prevented from entering into the roller shaft, thereby ensuring the smooth switching-over operation of the switchover pin.
Patent CA-2330788-A1 (CA)
Title: Patch antenna with an electrically small ground plate using peripheral parasitic stubs
Inventor: VAN HOOZEN ALLEN LEE
IPC: H01Q1/52
Filed: 1999-03-30
Abstract: In accordance with the present invention, there is provided a patch antenna assembly (10) having a generally planar patch antenna (12), defined by a first peripheral boundary (14), and a generally planar parasitic ground plate (16), disposed at a spaced parallel relation to the patch antenna (12).  The assembly (10) further includes at least one conductive parasitic shielding element (18) for segregating electromagnetic fields between the patch antenna (12) and the ground plate (16). The shielding element (18) is disposed in electrical communication with the ground plate (16) and extends from the ground plate (16) and substantially about the first peripheral boundary (14) of the patch antenna (12).
Patent CA-2333767-A1 (CA)
Title: Disposable absorbant article having a responsive system including a feedback control loop
Inventor: EHRNSPERGER BRUNO JOHANNES
IPC: A61L15/42
Filed: 1999-06-29
Abstract: Disposable articles such as diapers, incontinent briefs, diaper holders and/or inserts, training pants, feminine hygiene garments, tampons, and the like, having a responsive system. The article includes a sensor that detects an input, an actuator that is adapted to perform a responsive function upon the input, and a feedback control loop in which the actuator is adapted to perform the responsive function upon the input when the sensor detects the input.
Patent CA-2333852-A1 (CA)
Title: A polynucleotide comprising a ubiquitous chromatin opening element (ucoe)
Inventor: CROMBIE ROBERT
IPC: C12N15/11
Filed: 1999-07-21
Abstract: The present invention relates to a polynucleotide comprising a ubiquitous chromatin opening element (UCOE) which is not derived from an LCR. The prese nt invention also relates to a vector comprising the polynucleotide sequence, a  host cell comprising the vector, use of the polynucleotide, vector or host cell in therapy and in an assay, and a method of identifying UCOEs. The UCOE  opens chromatin or maintains chromatin in an open state and facilitates reproducible expression of an operably-linked gene in cells of at least two different tissue types.
Patent CA-2334890-A1 (CA)
Title: Input independent tilt free broadband amplifier with dynamic gain equalisation
Inventor: YANG DAN DAN
IPC: H04B10/29
Filed: 2000-05-09
Abstract: A broadband optical amplifier that can provide a constant amplifier gain profile, correct for ASE noise, and minimize gain tilt by dynamically controlling different stages of the amplifier through a combination of gain, loss, and power control of each stage depending on input and the desired output level. The multiple stage amplifier has a central control circuit independently controlling each stage, the amplifier comprising a plurality of sequentially coupled stages, each stage being an attenuator stage, a gain setting sub-amplifier stage, or a power level setting stage. The central control circuit determines which stages are actively gain or power controlled.
Patent CA-2339257-A1 (CA)
Inventor: HANSQUINE DAVID
IPC: H03M13/00
Filed: 1999-08-04
Abstract: L'invention concerne un décodeur série de Viterbi comprenant une antémémoire de chaînage arrière convenant pour un téléphone mobile. Dans une forme d'exécution décrite, ce décodeur comprend un bloc de métrique d'erreur de branchement, une unité addition-comparaison-sélection (ACS) et un bloc de chaînage arrière comprenant une mémoire RAM de chaînage arrière, une antémémoire de chaînage arrière complet et des circuits de commande de chaînage arrière. L'antémémoire de chaînage arrière mémorise les bits de décision des cycles de traitement précédents de sorte qu'il n'est pas toujours nécessaire d'effectuer des opérations de chaînage arrière complètes. L'antémémoire de chaînage arrière est configurée de manière à mettre en antémémoire toutes les lectures. Cette antémémoire de chaînage arrière permet de réaliser des économies importantes d'énergie et de temps de traitement tout en ne nécessitant qu'une augmentation relativement modeste du nombre de circuits. Une autre forme d'exécution ne comprend pas d'antémémoire de chaînage arrière complet, mais le bloc de chaînage arrière comprend une mémoire RAM L+1 bit, un compteur-décompteur et un registre à décalage configurés afin d'émuler une antémémoire de chaînage arrière. Dans une forme d'exécution encore différente, la combinaison mémoire RAM L+1 bit et compteur-décompteur est remplacée par un registre à décalage L bit. Dans les différentes formes d'exécution, le bloc de chaînage arrière peut être configuré soit pour exécuter une seule lecture de chaînage arrière par cycle de traitement soit pour exécuter m lectures de chaînage arrière par cycle de traitement. Dans d'autres formes d'exécution, le bloc de chaînage arrière est configuré de manière à exécuter des opérations de chaînage arrière basées sur des lectures de a à b au cours desquelles l'antémémoire est sollicitée pour chaque lecture après l'exécution des lectures a jusqu'à ce que les lectures b aient été exécutées ou qu'une concordance soit constatée. Dans d'autres formes d'exécution, le bloc de chaînage arrière est configuré pour exécuter des opérations de chaînage arrière au cours de cycles de traitement multiples plutôt qu'au cours d'un seul cycle de traitement.
Patent CA-2340504-A1 (CA)
Title: Method of controlling chromatographic separation process
Inventor: IWAMOTO TOSHIHIRO
IPC: B01J39/26
Filed: 2001-03-09
Abstract: A chromatographic process of a type wherein a feedstock fluid containing a plurality of components is supplied into a circulative chromatographic separation system, the process comprising the steps of (i) supplying the feedstock fluid and withdrawing a fraction enriched in a component, (ii) supplying a desorbent fluid and withdrawing a fraction enriched in another component, and (iii) circulating the fluid through the bed without supplying or withdrawing any fluid thereby making a mixed zone comprising a plurality of components move, a cycle including steps (i), (ii) and (iii) being repeated while controlling the discharged pressure of a pump delivering the feedstock fluid, the desorbent fluid, and the circulating fluid constant.
Patent CA-2341409-A1 (CA)
Title: Novel angiogenesis inhibitors
Inventor: BILODEAU MARK T
IPC: C07D403/12
Filed: 1999-03-11
Abstract: The present invention relates to compounds which inhibit tyrosine kinase enzymes, compositions which contain tyrosine kinase inhibiting compounds and  methods of using tyrosine kinase inhibitors to treat tyrosine kinase-depende nt diseases/conditions such as angiogenesis, cancer, atherosclerosis, diabetic retinopathy or autoimmune diseases, in mammals.
Patent CA-2343030-A1 (CA)
Title: Composition explosive en emulsion
Inventor: SCALES RICHARD CHARLES
IPC: C06B47/14
Filed: 1999-09-17
Abstract: Une composition explosive en émulsion contient deux sels fournisseurs d'oxygène ainsi que de l'urée sous forme de phase discontinue, et une phase organique continue non miscible à l'eau constituée essentiellement d'huiles iso-paraffiniques et d'un ou de plusieurs agents émulsionnants.
Patent CA-2343946-A1 (CA)
Title: Poly(alpha-1,4-d-glucan) et melanges polymeres thermoplastiques le contenant
Inventor: BRUNNER ANETTE
IPC: A61K9/70
Filed: 1999-11-05
Abstract: L'invention concerne des poly(.alpha.-1,4-D-Glucan)s ayant un degré de polymérisation minimum d'environ 40, notamment d'environ 50 et, de préférence, d'environ 60. Des poly(.alpha.-1,4-D-Glucan)s plastifiés, ayant les degrés de polymérisation ou les mélanges thermoplastiques mentionnés et contenant des poly(.alpha.-1,4-D-Glucan)s thermoplastiques plastifiés, sont particulièrement adaptés comme matrice excipient destiné aux principes actifs utiles dans l'agriculture, pharmaceutiques et/ou cosmétiques.
Patent CA-2344378-A1 (CA)
Inventor: KURTH THOMAS M
IPC: C08H99/00
Filed: 1999-09-17
Abstract: Une matière plastique alvéolaire améliorée comprend une mousse d'uréthane qui est le produit de réaction d'huile de soja, d'un isocyanate et d'un agent de réticulation. L'huile de soja remplace le polyol qui est en général spécifiquement utilisé dans la production des uréthanes. Etant donné que le polyol remplacé est un produit pétrochimique, l'utilisation d'une matière renouvelable et respectueuse de l'environnement telle que l'huile de soja est extrêmement intéressante. En outre, les matières plastiques possédant plusieurs qualités finales peuvent être formées à l'aide d'une seule huile végétale. Hormis les mousses alvéolaires il est possible de former des élastomères plastiques solides.
Patent CA-2346043-A1 (CA)
Title: Sampling in blood collection
Inventor: DILLON JAGMOHANBIR SINGH
IPC: A61B5/155
Filed: 1999-10-25
Abstract: Methods and apparatus are disclosed whereby the initial flow of blood during  blood collection is diverted to a sample pouch to trap the skin plug and to allow samples to be taken during subsequent blood collection to a normal blo od bag. This is effected by connecting the needle line (106), the sample line (118) to the sample pouch (116) and the bag line (114) to the blood bag to a  multi-port valve (110) that includes an actuator (120). During the procedure , the valve (110) may be attached to the arm (100) of the donor by means of a wrist-strap (112).
Patent CA-2346389-A1 (CA)
Title: Dispositif de lavage a plusieurs etages et procede associe
Inventor: WHITEMAN GEORGE A
IPC: B08B3/00
Filed: 1999-10-28
Abstract: Dispositif de lavage à plusieurs étages comportant une unité de lavage (21) de pièces, qui fait appel à la biorestauration pour purifier le fluide de lavage. Le dispositif comprend deux chambres internes (27, 28), destinées à contenir ledit fluide de lavage et les agents de biorestauration; un réservoir (22) de fluide de lavage, qui permet de remplir l'unité de lavage (21) de pièces; et une pluralité de postes satellites, notamment un lavabo (23), un dispositif de lavage (24) de dessus de paillasse, un dispositif de lavage (25) de freins et un second dispositif de lavage (26) de pièces. Les fluides de lavage contenus dans chaque poste satellite sont amenés dans l'unité de lavage (21) de pièces en vue de leur purification par les agents de biorestauration.