baber/WOPTO huggingface dataset:
Patent CA-2285866-A1 (CA)
Title: Two-stage, three-phase boost converter and method of reducing total harmonic distortion for the same
Inventor: JACOBS MARK ELLIOTT
IPC: H02M1/42
Filed: 1999-10-15
Abstract: For use with a three-phase boost converter having a primary stage with a primary rectifier and a primary boost switch coupled between an input and output of the three-phase boost converter, an auxiliary stage, a method of reducing input current total harmonic distortion (THD) at the input of the three-phase boost converter, and a three-phase boost converter employing the auxiliary stage and method are provided. In one embodiment, the auxiliary stage includes: (1) an auxiliary rectifier coupled to the primary rectifier, (2) first, second and third auxiliary boost inductors interposed between the primary rectifier and the auxiliary rectifier and (3) an auxiliary boost switch, interposed between the auxiliary rectifier and the output, that conducts to induce corresponding phase currents through the first, second and third auxiliary boost inductors thereby reducing input current total harmonic distortion (THD) at the input of the three-phase boost converter.
Patent CA-2286565-A1 (CA)
Inventor: AUCOEUR JEAN-PIERRE
IPC: H04B7/185
Filed: 1999-02-15
Abstract: The invention concerns a device for connecting a fixed telephone network (PSTN) to a telephone switch (SW) located in an isolated community, via a mobile telephone network (PLMN) derived from the GSM type, and comprising at least a satellite (S); a plurality of fixed user terminals (UT1, ...., UT100) being connected to said telephone switch. Said device comprises a plurality of mobile telephone fixed terminals (RTa, ...., RTn), and a transfer control point (TCP), coupling the fixed network (PSTN) to a mobile telephone network switch (MSC), to manage dynamically the assignment of the connections (Ca, Cb, ..., Cn) carried by said mobile telephone fixed terminals (RTa, ..., RTn), to telephone communications set up between the fixed telephone network (PSTN) and the user terminals (UT1, ..., UT100) located in the isolated community. The invention is applicable to telephone service in isolated communities.
Patent CA-2287321-A1 (CA)
Inventor: YOON SOON YOUNG
IPC: H04W28/18
Filed: 1999-03-02
Abstract: A traffic channel transmission device for a CDMA communication system using a plurality of coding rates and orthogonal codes, determines a present channel condition and adaptively selects a coding rate and an orthogonal code according to the determination. In the device, a channel receiver receives a channel signal and a controller analyzes the received signal to decide an environment of a channel in service and generates a coding rate select signal and orthogonal code information according to the decision result. A channel transmitter includes a channel encoder (311, 312) for encoding transmission data at a coding rate selected according to the coding rate select signal (Csel) and an orthogonal modulator (361, 362) for generating an orthogonal code according to the orthogonal code information to spread the encoded data with the generated orthogonal code, whereby the channel transmitter adaptively encodes and spreads the transmission data according to the channel environment. The orthogonal code information includes a number and a length of the orthogonal code.
Patent CA-2287906-A1 (CA)
Inventor: RICCARDI CARLO
IPC: C12N5/02
Filed: 1998-04-27
Abstract: A DNA sequence encoding a glucocorticoid-induced leucine-zipper family related protein (GILR), isoforms, fragments or analogs thereof, said GILR, isoforms, fragments or analogs thereof capable of inhibiting apoptosis and stimulating lymphocyte activity, GILR proteins, isoforms, analogs, fragments and derivatives thereof encoded by the aforesaid DNA sequence, their preparation and uses.
Patent CA-2294569-A1 (CA)
Title: Proteines secretees et polynucleotides codant ces proteines
Inventor: FECHTEL KIM
IPC: A61P17/02
Filed: 1998-06-18
Abstract: Cette invention se rapporte à de nouveaux polynucléotides ainsi qu'aux protéines codées par ceux-ci.
Patent CA-2295481-A1 (CA)
Inventor: TIMMERMANS JOHANNES WILHELMUS
IPC: C11D3/12
Filed: 1998-07-15
Abstract: Polycarboxy polysaccharides, in particular dicarboxymaltodextrins, having a molecular weight between 1,600 and 12,000 and having a degree of oxidation (DO) of 0.12-0.6 carboxyl groups per anhydromonose unit, can be used as a cobuilder, in particular as an anti-redeposition and soil dispersing agent in detergent compositions.
Patent CA-2296612-A1 (CA)
Inventor: TALARICO JOE
IPC: F16D23/12
Filed: 2000-01-18
Abstract: A clutch actuator assembly includes a pedal pivotally mounted on a base platform and a pulling assembly mounted on the platform underneath of the pedal on a predetermined distance between a foot engaging portion of the pedal and a pivot. A flexible cable is connected between the pulling assembly and a remotely located clutch of a machinery. Pulling assembly facilitates engagement of the clutch by pulling action of the flexible cable. The pulling action of the cable is facilitated by transferring of a leverage movement oh the pedal into a pulling force of the pulling assembly activated by the pedal during its leverage movement. All assembly is housed in a protective cover provided to prevent accidental activation of the pedal.
Patent CA-2297102-A1 (CA)
Title: Expandable thermoplastic particles and atomization method for making same
Inventor: CRAIG THOMAS ORR
IPC: B29C44/34
Filed: 1998-07-24
Abstract: An improved process for manufacture of expandable polymer particles is provided. The continuous process disclosed produces expandable polymer pellets in a single step while eliminating many of the dangers inherent in processes of prior art employed for the same. The polymers produced herein are of uniform size, and may be molded into various articles of manufacture using existing equipment and techniques known to those skilled in the art.
Patent CA-2298818-A1 (CA)
Inventor: GAGE GARRETT W
IPC: F16H48/285
Filed: 2000-02-16
Abstract: Parallel-axis gear differentials include a housing rotatable about a common axis of a pair of output shafts, and a planetary gearset mounted in the housing for interconnecting the output shafts. The gearset includes a pair of side gears positioned within the housing and fixed for rotation with the output shafts, and two or more pairs of meshed pinions journally mounted in gear pockets formed in the housing, with each pinion having a gear segment meshed with a gear segment of the other pinion and with one of the side gears. An anti-tipping mechanism includes brake shoes that are journalled on stub shaft segments of the pinions. Each brake shoe has a first support surface which mates with the outer diameter surface of a corresponding side gear, a second support surface which mates with the outer diameter surface of the gear segment on the adjacent meshed pinion, and a third support surface which mates with the wall surface of the gear pocket. As an optional feature, the interface between the shaft segment of the pinion and the brake shoe can be modified to include a cone clutch for generating supplemental braking forces in response to axial movement therebetween.
Patent CA-2299438-A1 (CA)
Title: Atm-based distributed virtual tandem switching system
Inventor: SIGARTO SAMUEL
IPC: H04L12/56
Filed: 1999-04-30
Abstract: An Asynchronous Transfer Mode (ATM)-based distributed virtual tandem switching system is provided in which a network of ATM-based devices is combined to create a distributed virtual tandem switch. The system includes an ATM  switching network that dynamically sets up individual switched virtual connections. The system also includes a trunk interworking function (T-IWF) device and a centralized control and signaling interworking function (CS-IWF) device. The trunk interworking function device converts end office voice trunks from TDM channels to ATM cells by employing a structured circuit emulation service. The centralized control and signaling interworking function device performs call control functions and interfaces narrowband signaling and broadband signaling for call processing and control within the ATM switching network. Consequently, the ATM based distributed virtual tandem switching system replaces a standard tandem switch in the PSTN.
Patent CA-2299618-A1 (CA)
Inventor: PARESS PHILIP S
IPC: C12N15/12
Filed: 1998-08-10
Abstract: To date, L-glutamate-gated chloride (GluC1) channels have been observed only in invertebrate organisms. Modulators of this channel (either agonists or antagonists) will interfere with neurotransmission. For example, agents such as avermectins activate the GluCl, causing paralysis due to blocking of neurotransmitter release, resulting in death of the organism. Because GluCl channels are invertebrate specific, they are excellent targets for the discovery of novel insecticides, anthelminths and parasiticides that will display a marked safety profile because of the lack of mechanism based toxicity in vertebrate organisms. The present specification discloses isolation of a cDNA clone from the cat flea Ctenocephalides felis (CfGluCl-1) that encodes a L-glutamate-gated chloride channel. Heterologous expression of CfGluCl-1 cRNA in Xenopus oocytes results in robust expression of a Lglutamate-gated chloride current and the channel is activated and potentiated by avermectins. The expression of CfGluCl-1 in a heterologous expression system is useful to screens for novel GluCl channel agonists and antagonists. Additionally, this specification discloses improved methods of screening for GluCl channel modulators.
Patent CA-2300634-A1 (CA)
Title: Polyamide-based antistatic tube for gasoline
Inventor: MERZIGER JOACHIM
IPC: B60S5/02
Filed: 2000-03-16
Abstract: The pipe structure is new.  Multilayer polyamide-based pipe comprises, in the radial direction from its interior towards exterior: (a) internal layer composed of polyamide or mixture of polyamide and polyolefin on polyamide matrix, and containing dispersed charge of electroconductive carbon black producing surface resistance below 10<6> Ohm; (b) intermediate layer composed of polyamide or mixture of polyamide and polyolefin on polyamide matrix, containing no electroconductive carbon black (or only electrically non-significant amount of carbon black); (c) a layer of binder; and (d) external layer of polyamide, with all layers adhering to each other along their contact zones. The pipe may also contain supplementary layer of polymer containing ethylene and vinyl alcohol groups (EVOH), positioned between external polyamide layer and intermediate layer.
Patent CA-2301786-A1 (CA)
Inventor: ZENCZAK BRIAN
IPC: B65H5/06
Filed: 2000-03-21
Abstract: An apparatus (10) for performing a work operation on sheet material (12) includes a plurality of drive wheels (42) for driving the sheet material (12) in cooperation with a plurality of pinch rollers (36) along a feed path (30).  Each of the drive wheels (42) includes a drive surface (54) having a plurality of primary teeth (60) and a plurality of secondary teeth (62). Each primary tooth (60) includes a top surface (76) and a plurality of primary contact points (78) to engage the sheet material (12). Each secondary tooth (62) includes either a secondary contact line (92) or a secondary contact point (90) that come into contact with the sheet material (12) to provide additional driving force and to prevent the sheet material from being perforated by the primary teeth (60). The primary teeth (60) and the secondary teeth (62) of the drive wheels (42) engage the sheet material (12) to advance the sheet material along the feed path (30). The drive surface (54) of the drive wheels (42) of the present invention minimizes slippage of the sheet material (12) in the drive apparatus (10) without damaging the sheet material (12).
Patent CA-2301830-A1 (CA)
Title: Method and means for modulating plant cell cycle proteins and their use in controlling plant cell growth
Inventor: SEGERS GERDA
IPC: C12N1/21
Filed: 1998-09-07
Abstract: Provided are DNA sequences encoding cell cycle interacting proteins as well as to methods for obtaining the same. Furthermore, vectors comprising said DNA  sequences are described, wherein the DNA sequences are operatively linked to regulatory elements allowing expression in prokaryotic and/or eukaryotic host cells. In addition, proteins encoded by said DNA sequences, antibodies to said proteins and methods for their production are provided. Also described is a method for controlling or altering growth characteristics of a plant and/or a plant cell comprising introduction and/or expression of one or more cell cycle regulatory proteins functional in a plant or parts thereof and/or one or more DNA sequences encoding such proteins. Also provided is a process for disruption plant cell division by interfering in the expression of a substrate for cyclin-dependent protein kinase using a DNA sequence according to the invention wherein said plant cell is part of a transgenic plant. Further described are diagnostic compositions comprising the aforementioned DNA  sequences, proteins and antibodies. Methods for the identification of compounds being capable of activating or inhibiting the cell cycle are described as well. Furthermore, transgenic plant cells, plant tissue and plants containing the above-described DNA sequences and vectors are described as well as the use of the aforementioned DNA sequences, vectors, proteins, antibodies and/or compounds identified by the method of the invention in plant cell and tissue culture, plant breeding and/or agriculture.
Patent CA-2302981-A1 (CA)
Inventor: HOP HING NELSON
IPC: G06F17/30
Filed: 2000-03-29
Abstract: A database table reorganization is defined to permit online access of the table during the reorganization. Records are reorganized in the database table by vacating records from a defined number of pages and then filling the pages with records in accordance with a desired ordering for the records. Temporary pointers to the new locations of moved records are used to prevent table scanner access to the database table from missing or duplicating records while scanning the database table during reorganization. Removal of the temporary pointers is synchronized with the completion of scanning of all table scanners that are commenced during a time when records are being moved as part of a vacating or filling step.
Patent CA-2306831-A1 (CA)
Inventor: SCHIFF NICHOLAS D
IPC: A61N1/36
Filed: 1998-10-20
Abstract: Disclosed is a method for treating a conscious patient having impaired cognitive function. The method includes selecting a conscious patient having impaired cognitive function and applying electrical stimulation to at least a portion of the patient's intralaminar nuclei under conditions effective to relieve the patient's impaired cognitive function. A method for improving coordination of function across a patient's cortical regions is also described. The method includes applying electrical stimulation to two or more subdivisions of the patient's intralaminar nuclei. The two or more subdivisions of the patient's intralaminar nuclei modulate separates cortical regions. Using the methods of the present invention, patient suffering from impaired cognitive function can have at least a portion of the function restored, thus improving their quality of life and reducing societal costs.
Patent CA-2308765-A1 (CA)
Title: The use of an ox-2 protein or nucleic acid in immunomodulation
Inventor: GORCZYNSKI REGINALD M
IPC: A61K39/395
Filed: 1998-11-06
Abstract: Methods and compositions for inducing immune suppression are disclosed. The methods involve administering an effective amount of an OX-2 protein or a nucleic acid encoding an OX-2 protein. The methods are useful in preventing graft rejection, fetal loss, autoimmune disease, and allergies. Methods and compositions for preventing immune suppression are also disclosed. The methods involve administering an effective amount of an agent that inhibits OX-2.
Patent CA-2309854-A1 (CA)
Title: Catheter having expandable electrodes and adjustable stent
Inventor: FARLEY BRIAN E
IPC: A61B18/14
Filed: 1998-11-12
Abstract: A catheter having expandable electrodes for applying energy to a vein for a minimally invasive treatment of venous insufficiency, and having expandable stent members for limiting vein shrinkage to a final desired vein diameter.  The catheter includes a set of expandable arms that are pre-formed into an outwardly bowed configuration. An electrode is mounted on each arm. When uncovered by sliding a control sleeve proximally, the electrode arms expand outwardly into apposition with the vein wall for applying energy to the vein wall to heat and shrink the vein. The catheter further includes a set of expandable stent arms deployed to the final desired diameter of the vein. The electrode arms and the stent arms are decoupled so that each is separately controllable. In a method, the stent arms are expanded outward to the desired final diameter of the vein. The electrode arms are then expanded into apposition with the vein wall and energy is applied to shrink the vein into contact with the stent arms. The application of energy is ceased at that time.
Patent CA-2309855-A1 (CA)
Title: Testosterone inhibitors and use for the protection of neurons
Inventor: SIMPKINS JAMES W
IPC: A61K31/44
Filed: 1998-11-24
Abstract: The present invention relates to conferring neuroprotection on a population of cells and treating a neurodegenerative disorder by providing an effective dose of a non-estrogen inhibitor of testosterone metabolism wherein the inhibitor excludes four ring cyclopentanophenanthrene compounds.
Patent CA-2311515-A1 (CA)
Inventor: MUHLEBACH ANDREAS
IPC: C07F15/00
Filed: 1998-11-24
Abstract: L'invention concerne des complexes de ruthénium et d'osmium penta et hexa-coordonnés comprenant un groupe hétérocyclyle aromatique mono ou bicyclique qui contient au moins un atome d'azote coordonné à l'atome central de ruthénium ou d'osmium. Ces nouveaux composés sont d'excellents catalyseurs des réactions de métathèse et de la cyclisation des diènes.
Patent CA-2313108-A1 (CA)
Title: Independent front suspension
Inventor: CHERRY HERBERT J
IPC: F16D65/14
Filed: 1998-12-10
Abstract: A steerable independent front suspension having upper and lower wishbone control arms, each control arm pivotally mounted to a suspension frame which in turn is adapted to be mounted to a vehicle frame. The other end of the control arms are pivotally mounted to an upper and lower end of a knuckle post, which has an opening extending therethrough. A steering knuckle is pivotally mounted to the knuckle post and mounts an S-cam brake assembly having a brake actuator extending therefrom. The knuckle post opening is positioned and sized to receive the brake actuator when the steering knuckle is pivoted to a maximum position to increase the steering angle of the vehicle.
Patent CA-2315553-A1 (CA)
Inventor: YAMADA RUI
IPC: G06T1/00
Filed: 2000-08-09
Abstract: In a processing circuit employed in a picture processing apparatus, pixel values of pixels composing a picture are each separated into a surface-reflected light. component and a body-reflected light component on the basis of a Dichromatic Reflection Model. Then, the surface-reflected light component or the body-reflected light component is expressed by using a Phong Illumination Model or a Lambertian Reflection Model respectively. The surface-reflected light component or the body-reflected light component is then modified.      Subsequently, each pixel value is changed on the basis of the modified surface-reflected light component or the modified body reflected light component.      As a result, the picture processing apparatus allows the user to change the color of a picture displaying a 3-dimensional substance to a natural picture with ease.
Patent CA-2323920-A1 (CA)
Title: Methods and apparatus for monitoring water process equipment
Inventor: HONG KE
IPC: F22B37/38
Filed: 1999-02-10
Abstract: Methods and apparatus are provided for detection of leaks in boilers (10) containing a temperature control liquid (12) which is supplemented with feedwater and removed as blowdown. The methods include measuring rates associated with the feedwater supplementation and blowdown (18), adding a tracer to the temperature control liquid, determining the change in rate of the feedwater supplementation, determining the mass of the temperature control liquid, deriving the change in concentration of the chemical tracer in the temperature control liquid, calculating the unaccounted for water rate and comparing this rate with zero to determine if a leak condition is present.
Patent CA-2324673-A1 (CA)
Inventor: GODIN PARADIS GISELE
IPC: H04M17/02
Filed: 2000-10-12
Abstract: « Phonecell » est un produit qui se mari bien avec toutes les nouvelles technologies de communications, et ce, à un moindre coût d'installation. Il est également pl us rapide pour toutes situations d'urgence publique. De plus, le coût d'exploitation pour le propriétaire opérateur se facture en temps d'utilisation. Donc, les frais d'exploitation sont très compétitifs tout en offrant un service à la clientèle des plus complet. De plus, un endroit spécifique est réservé à l'emplacement du téléphone afin d'utiliser les services du fournisseur de ligne « Phonecel l ».  « Phonecell » est bien plus que tout cela car en effet, c'est un produit qui  ferait passer le téléphone public dans le nouveau millénaire.
Patent CA-2327497-A1 (CA)
Inventor: CHUDGAR RAJAN K
IPC: C08F10/00
Filed: 1999-04-16
Abstract: Cette invention porte sur des compositions d'homopolymères de propylène isotactiques obtenues à partir de la catalyse du métallocène. La répartition (Mw/Mn) des poids moléculaires du polymère est comprise entre environ 2,5 et environ 20,0. La composition d'homopolymères de propylène isotactiques peut être préparée selon un procédé de polymérisation en plusieurs étapes au moyen du composant métallocène précité, et au moins en deux étapes.
Patent CA-2327982-A1 (CA)
Inventor: UNDERWOOD J LARRY
IPC: F16B21/08
Filed: 2000-12-08
Abstract: A fastener is provided for engagement with one or more object(s) formed with an opening to receive the fastener. The fastener has a head portion and an integrally formed flexural portion. The head portion has a confronting surface from which the integral flexural portion projects.      The flexural portion features a support portion and at least one flexural portion. Each flexural portion includes a distal surface inclined with respect to the confronting surface of the head at an angle that facilitates elastic deformation of the flexural portion upon application of the fastener to an opening of an object. The flexural portion also features a proximal surface, inclined and tapered with respect to the confronting surface of the head portion at angles that facilitates fixed retention of the fastener despite variation in the thickness of the object to which to the fastener is fastened.
Patent CA-2332525-A1 (CA)
Title: High voltage insulator for optical fibers
Inventor: JOHNSON LEONARD A
IPC: G02B6/44
Filed: 1998-10-09
Abstract: A high voltage insulator for use with optical fibers includes an insulative support rod with at least one optical fiber wrapped about the support rod.  The optical fiber and support rod are covered by an outer elastomeric skirted insulative sleeve which squeezes the optical fibers against the support rod. A    dielectric sealant, such as a silicone gel, is dispersed along the optical fiber to fill any voids which occur adjacent the optical fiber, thereby providing a void-free bond between the interior surfaces of the insulator. The elastomeric outer sleeve provides a resilient barrier against the ingress of moisture. In a preferred embodiment, an inner layer of elastomeric material is provided between the support rod and the optical fiber to provide additional cushioning of the fiber and to reduce the size of voids which may occur adjacent the fiber.