baber/WOPTO huggingface dataset:
Patent CA-2302892-A1 (CA)
Title: Limited use mobile telephone
Inventor: LONG J WAYNE
IPC: H04W4/90
Filed: 2000-03-29
Abstract: A limited-use mobile telephone operable within at least one mobile telephone network within a region of said mobile telephone's intended use. All direct charges for use of the telephone are prepaid, and the telephone is characterized by a set of limiting events. In one embodiment, the telephone includes a sole power source internal to the telephone and not readily replaceable or rechargeable by an end user. In that embodiment, the set of limiting events includes the end of the elapsed life of the power source, the end of use covered by prepaid charges, and a preset point in time. The telephone is of no operational use to an end user after the occurrence of the earliest implemented limiting event. Prepaid direct charges may be based on completion of a preset number of calls or expiration of a preset amount of air time. The telephone may be further limited to outgoing calls, a limited set of telephone numbers which may be dialed from the telephone such as an emergency number for the region of intended use or lcoal numbers only. To prevent inadvertent activation, one embodiment of the telephone includes only a single user input device for dialing, thereby preventing mis-dialed numbers. The telephone may be adapted to allow a purchaser to select the preset number(s). A guard is provided in one embodiment for preventing inadvertent activation of the telephone. In an alternative embodiment, the telephone is adapted to receive requests for telephone from a system at a dialed number, determine the characteristic, and respond to the system at the dialed number with a data stream indicating the characteristic. An embodiment of the telephone capable of receiving requests for, determining, and responding with the telephone's geolocation is described. Another alternative embodiment is disclosed wherein use of the telephone may be refreshed after the occurrence of a limiting event.
Patent CA-2305037-A1 (CA)
Title: Portable food and beverage cooling device
Inventor: WAGNER PETER P G
IPC: B65D81/38
Filed: 2000-04-14
Abstract: An improved, portable food and beverage cooling device having a re-usable, freezing containment structure. Packets of a freezing refrigerant are combined with layers of insulation and vapor barriers to improve thermal storage and control the rate of heat transfer from the refrigerant to the item being cooled. The refrigerant is contained within cavities formed between thin, flexible containment sheets. The coolant, coolant containment sheets and a thin sheet of flexible insulation are sealed within a vapor barrier envelope to create adjustable air spaces between the coolant and the items being cooled. The freezable cooling envelope is then fastened to an outer protective cover or placed inside a decorative pouch which facilitate fastening the device to a food or beverage item. Using a refrigerant with a freezing temperature of below 28° F (-2° C) individual beverages or food items can be cooled to temperatures which are below 32° F (0.0°      C). The device may be used alone while the beverage is being consumed or may be used to line the inside of lunchboxes or ice coolers.
Patent CA-2305162-A1 (CA)
Inventor: COLTHAR JAMES R
IPC: C11C5/00
Filed: 2000-04-14
Abstract: The present invention relates to a wick clip assembly for candles to be used on a supporting surface, as well as a method for making such assemblies, and candles incorporating the same. According to one embodiment, a wick receiving member is disposed adjacent to the top of a base. A generally open skirt extends downwardly from the base, and is adapted to maintain the base in a predetermined spaced relationship relative to a supporting surface in use. The bottom end of a wick penetrates the base and is securely attached to the wick clip assembly by the wick receiving member such that its bottom end is located above the supporting surface in use. The clip provides enhanced control over heat transfer from the flame to the supporting surface, while optimizing performance of the candle.
Patent CA-2306171-A1 (CA)
Inventor: EKHOLM ROLF
IPC: B01F5/04
Filed: 1998-10-13
Abstract: A method and apparatus for introduction of a first fluid into a second fluid, that flows in a conduit. A first member with a pass-through canal for said second fluid, is at least partially encircled by a chamber with a wall between the inner part of the chamber and the pass-through canal, and a pressurized source of first fluid which is to be supplied into the chamber. At least one series of apertures is distributed about the periphery of the wall, extending therethrough, such that the first fluid is introduced through the apertures to be mixed into the second fluid based upon the pressure differential between the pressure in the chamber and the pressure in the pass-through canal. At least a portion of the apertures may be selectively blocked or closed to regulate the flow of the first fluid into the pass-through canal.
Patent CA-2307266-A1 (CA)
Title: Interactive applications
Inventor: KYDD RICHARD ANDREW
IPC: H04N7/173
Filed: 2000-05-01
Abstract: An interactive broadcast system comprising a plurality of user interfaces each comprising a local clock signal generator. Each user interface delivers interactive applications to a respective user with reference to its respective local clock signal. A central control system broadcasts data to the user interfaces. The CCS detects adjustment of the local clock signals to identify fraudulent users.
Patent CA-2309646-A1 (CA)
Title: A gas sensor
Inventor: BACKES MONICA
IPC: G01N27/416
Filed: 1998-11-10
Abstract: A gas sensor is described which is particularly well suited as a carbon monoxide (CO) sensor in a self test gas sensor. The sensor includes a number of aspects which may or may not be used in conjunction with one another. A first aspect is an embodiment which reduces electrical interference (or cross-talk) between a test or gas generating cell and a sensing cell. In one embodiment baffles are provided to prevent cross-talk. In another embodiment a switching circuit ensures that a test gas generator is operational only when the gas sensor is disconnected from a current source. A second aspect is an embodiment which includes an improved wick which is in close proximity with an electrode and ensures that the electrolyte is always in contact with the electrode. In an alternate embodiment a solid polymer electrolyte is used between the electrodes. A third aspect is an improved catalyst which reduces the reaction energy and thereby renders the sensor more sensitive. The catalyst is also cheaper than platinum. Overall the gas sensor uses less components than existing gas sensors and is therefore cheaper and easier to assemble and more reliable.
Patent CA-2309859-A1 (CA)
Inventor: CULLINAN GEORGE JOSEPH
IPC: A61K31/445
Filed: 1998-11-09
Abstract: Procédés qui sont utiles pour inhiber divers états pathologiques associés au syndrome de la carence en estrogènes, dont l'ostéoporose et l'hyperlipidémie, à l'aide de composés de formule (I).
Patent CA-2310624-A1 (CA)
Inventor: FINK GERALD R
IPC: C07K19/00
Filed: 1998-11-19
Abstract: L'invention concerne une protéine chimère qui comprend un facteur de transcription à activation préalable et un domaine fort d'activation de la transcription qui sert à réguler l'expression du gène fongique, ainsi que des réactifs et des procédés pour construire et utiliser cette protéine.
Patent CA-2311206-A1 (CA)
Title: High temperature ground connection
Inventor: BRYNDZIA MICHAEL R
IPC: H01H9/52
Filed: 2000-06-13
Abstract: A wiring device, and more particularly wheat generating wiring device such as a dimmer, includes a heat sink in thermal contact with a heat-generating electrical component and the ground terminal to dissipate heat therefrom. The ground terminal is recessed in the housing to prevent a ground screw from contacting external insulation but without impeding connection of the ground wire to the ground terminal.
Patent CA-2312863-A1 (CA)
Inventor: ROUSSEL JEAN
IPC: F16K15/14
Filed: 1998-12-09
Abstract: The valve, which is intended to regulate the passage of a fluid through an orifice in a wall  
 comprises a tubular body and a flexible rubber cover which deforms under the action of the pressures [(P1 and P2)] prevailing in the spaces on each side of the valve.
Patent CA-2314956-A1 (CA)
Title: Liaison de communications reseau
Inventor: RUZIACK YARON
IPC: H04B10/114
Filed: 1998-12-16
Abstract: Une liaison de communications sans fil (20) comprend une unité de base (22), qui est connectée à une ligne de communication filaire (32), de sorte qu'elle reçoive les signaux électriques de la ligne et transmette le rayonnement infrarouge diffus, modulé en réaction aux signaux électriques reçus. L'unité de base reçoit également un rayonnement infrarouge modulé et transmet les signaux électriques sur la ligne de communications, en réaction au rayonnement infrarouge reçu. Au moins une unité éloignée (24, 42) est connectée à un dispositif audiovisuel (28, 50) et couple le dispositif à une ligne de communications en recevant le rayonnement infrarouge modulé transmis par l'unité de base et en transmettant le rayonnement infrarouge diffus à l'unité de base.
Patent CA-2315424-A1 (CA)
Inventor: MOORHEAD WILLIAM D
IPC: A61M1/00
Filed: 1997-12-11
Abstract: A device and method for determining internal fluid pressure in body cavity during irrigation procedures is presented. The invention relies on noninvasive measurements, and on a calibrated surgical apparatus to determine the dynamic internal fluid pressure. Once the dynamic internal fluid pressure is known, a control signal can be generated to indicate needed changes to pressure regulating equipment (12), such as a pump (16).
Patent CA-2315540-A1 (CA)
Inventor: YE ZU-CHENG
IPC: A61P25/28
Filed: 1998-12-18
Abstract: Astrocytes protect neurons from excitotoxic injury by maintaining low extra-cellular glutamate concentrations ([Glu]o). Compromised astrocytic glutamate uptake has been implicated in acute and chronic neuroligical conditions, including Parkinson's disease. This invention provides evidence that [Glu]o is modulated in a feed-back manner through activation of metabotropic glutamate receptors (mGluRs), particularly group II mGluRs. Furthermore, ACPD effects were mimicked by glutamate, suggesting that astrocytic glutamate transport is dynamically regulated with mGluRs acting as sensors for changes in [Glu].  Consequently, agonists of mGluR receptors are potent drugs to modulate extracellular glutamate levels in ways that are neuroprotective.
Patent CA-2318431-A1 (CA)
Title: Water sanitizing system
Inventor: LUSCOMBE JOHN STANBURY
IPC: C02F1/44
Filed: 1999-03-19
Abstract: A device for sanitizing and dispensing water used in dental and other medical procedures provides a sanitizing tank (14) into which municipal tap water or another water supply is sanitized to kill harmful bacteria and other micro-organisms. The sanitized water is drained to a reservoir when the level of water in the reservoir reaches a selected lower limit, as detected by a level sensor which signals a valve between the sanitizing tank and the reservoir to open. The sanitized water can be used in medical or dental procedures which require large amounts of water for irrigation, cooling or other purposes. The dispensing system provides selectable distribution of the sanitized water through an existing dental distribution system, supplying disinfectant to certain dispensing devices and systems while supplying sanitized water to others.
Patent CA-2318681-A1 (CA)
Inventor: SHER TAK CHI
IPC: F23Q2/50
Filed: 2000-09-12
Abstract: A safety lighter with improved windshield and thumb surrounding the striker wheel. The shield extends above the top dead center height of the wheel so that the wheel may be rotated only by applying substantial torsional forces along a rearward section of the wheel. A rearward opening in the shield allows the user to apply torsional force to the wheel over a limited surface area; thus, it is difficult for children to activate the lighter by rotation of the wheel.
Patent CA-2321480-A1 (CA)
Inventor: WARENIUS HILMAR MEEK
IPC: A61P35/00
Filed: 1999-02-18
Abstract: Provided is a method for measuring the radiosensivity of cells, which method comprises testing a sample comprising cells or an extract therefrom for: (a) the level of expression of p21, or for the abundance of p21 protein; and (b) the level of expression of Raf-1, or for the abundance of Raf-1 protein. The invention also provides a kit for measuring the radiosensitivity of cells, which kit comprises: (i) a means for testing for the level of expression of Raf-1 or for the abundance of Raf-1 protein; and (ii) a means for testing for the level of expression of p21 or for the abundance of p21 protein.
Patent CA-2321922-A1 (CA)
Inventor: BRIATORE ANDREA
IPC: D06L3/08
Filed: 1999-02-23
Abstract: Bleaching compositions are disclosed which comprise a hypohalite bleach, and an organic catalyst according to any formulae (I) or (II) or (III) or a mixture thereof, wherein R1 is -COO-M+, or a saturated or unsaturated, linear or branched hydrocarbon chain being substituted by 1 to 20 carboxylic groups -COO-M+ and M is H or an alkali metal, R2 is H, -COO-M+', a substituted or unsubstituted, saturated or unsaturated, linear or branched hydrocarbon chain having from 1 to 20 carbon atoms or a saturated or unsaturated, linear or branched hydrocarbon chain being substituted by 1 to 20 carboxylic groups -COO-M+ and M is H or an alkali metal, and wherein the phenyl rings each independently bare in one or more positions -H, -COO-M+, -Cl, -Br, -SO3M, -NO2, -Rf, -ORf wherein Rf is a substituted or unsubstituted, saturated or unsaturated, linear or branched hydrocarbon chain having from 1 to 20 carbon atoms. A method of treating fabrics with such a composition is also disclosed.
Patent CA-2322848-A1 (CA)
Inventor: FREEDMAN STEVEN
IPC: A23L1/30
Filed: 1999-03-03
Abstract: L'invention concerne un procédé relatif au traitement des troubles affectant les taux d'acide docasahexanoïque, qui consiste à administrer au patient une quantité thérapeutiquement efficace de cet acide. Le procédé est particulièrement utile pour le traitement des sujets souffrant d'un trouble caractérisé par une déficience du gène CF, à savoir par exemple : mucoviscidose, inflammation chronique du type colite ulcéreuse, maladie de Crohn, pancréatite chronique, asthme, polyarthrite rhumatoïde ou gastrite chronique. L'invention concerne également un procédé permettant de réduire les effets de la mucoviscidose chez le nouveau né, et un procédé qui permet d'augmenter les taux de tensioactif chez le foetus.
Patent CA-2327576-A1 (CA)
Title: Low frequency quartz oscillator device with improved thermal characteristics
Inventor: NOVAC PINCHAS
IPC: H03H9/215
Filed: 2000-12-05
Abstract: The present invention concerns a low frequency oscillator device including a quartz resonator (1) and an electronic maintenance circuit for maintaining the vibrations of said quartz resonator. According to the present invention, the quartz resonator is arranged to vibrate according to a torsional mode and therefore has a single cutting angle defined by a rotation at a determined angle (A) about the crystallographic axis X of the quartz crystal. This resonator includes in particular at least one undesired fundamental flexural vibrating mode at a first frequency and a desired fundamental torsional vibrating mode at a second frequency higher than said first frequency. Moreover, the electronic maintenance circuit is an inverter circuit (2) whose transconductance value (g m) is determined such that said device cannot oscillate according to the undesired fundamental flexural vibrating mode but according to the desired fundamental torsional vibrating mode of said resonator. The oscillator device according to the present invention thus has substantially improved thermal characteristics with respect to known oscillator devices using flexural vibrating resonators.
Patent CA-2330589-A1 (CA)
Inventor: GIUNTI STEFANO
IPC: C11D3/39
Filed: 1999-05-21
Abstract: The present invention relates to a liquid bleaching composition comprising a  peroxygen bleach, a zwitterionic betaine surfactant, a sulphonated hydrotrop e, and a nonionic surfactant. This composition is suitable to deliver excellent  stain removal performance and bleaching performance on various surfaces including fabrics and hard-surfaces, with improved physical stability, especially at low temperatures.
Patent CA-2333694-A1 (CA)
Title: Reserving communication capacity in cellular networks
Inventor: SCHULTE-KELLINGHAUS HERMANN
IPC: H04W28/26
Filed: 1999-06-17
Abstract: To achieve an increased access to subscribers in a mobile cellular network with a plurality of service areas each covered by a related switching center, in each such switching center (10) there is provided an interface means (12) to establish a plurality of communication channels between the switching center (10) and a mobile station (MS) roaming in the service area of switching center (10).  Further, the communication channel assignment at the interface (12) is changed through an assignement means (14) processing assignment requests submitted thereto.  Further, reservation requests are used to indicate to the switching center (10) that a specific subscriber wants to reserve communication channel capacity for a specific cell in a mobile cellular network during a specific time period according to a specific bandwidth. If this bandwidth is available at the specified cell during the specified period of time, it will be reserved for the requesting subscriber which then may easily initiate calls-services or receive calls-services by the reserved communication channel capacity at the start time (t s) of the prespecified period of time.
Patent CA-2336737-A1 (CA)
Inventor: LAYBOURN BERNARD THOMAS
IPC: G06Q20/34
Filed: 1999-07-16
Abstract: L'invention concerne un procédé permettant de faciliter la fourniture de services sans fil à prépaiement. Des opérations de mise à jour de crédit se rapportant à un dispositif de communication sans fil à prépaiement concernent des messages de services d'envoi de messages courts transmis au dispositif par radio. Le dispositif fait appel à des tableaux tarifaires pour garder trace de l'incidence d'un appel sur le crédit disponible. Les tableaux tarifaires peuvent être mis à jour à volonté par le fournisseur de services au moyen de messages de services d'envoi de messages courts.
Patent CA-2338056-A1 (CA)
Title: Systeme a combinaison en espace libre et a antenne en diversite pour stations cellulaires fixes
Inventor: XUE HONGXI
IPC: H04B7/06
Filed: 1999-06-29
Abstract: Ce système à combinaison en espace libre et à antenne en diversité pour station cellulaire fixe émet des signaux à partir de plus d'un émetteur sans utiliser un mélangeur de sorte que la combinaison des signaux émis se fait en espace libre. L'existence, de surcroît, de plusieurs antennes électriques autorise l'emploi de différents techniques de réception en diversité. La station est équipée de plusieurs émetteurs, reliés, chacun, à une antenne d'émission pouvant consister en plusieurs antennes électriques telles que, notamment, une antenne à plaque, des antennes unipolaires, des antennes dipolaires, etc. La station comprend également plusieurs récepteurs ou émetteurs-récepteurs-récepteurs reliés aux différentes antennes pour une utilisation de la réception en diversité. Des isolateurs, ayant une connexion entre les antennes, pour chaque paire d'émetteur-émetteur, d'émetteur-récepteur, d'émetteur-récepteur-émetteur-récepteur, d'émetteur-récepteur-émetteur et d'émetteur-récepteur-récepteur annulent les signaux émis reçus par les antennes non émettrices.
Patent CA-2339820-A1 (CA)
Title: Hot melt pressure sensitive adhesives based on compatibilized blends of elastomers
Inventor: COLE INGRID
IPC: C09J7/02
Filed: 2000-06-07
Abstract: The present invention is directed to hot melt pressure sensitive adhesive compositions, that exhibit excellent adhesion properties and improved thermal stability, said compositions comprising: a) 1 to 30 parts of styrene-butadiene-styrene triblock copolymer; b) 1 to 30 parts of styrene-isoprene-styrene triblock copolymer; c) 5 to 50 parts of a tackifier compatible with the butadiene and isoprene midblocks, but not compatible with the styrene end blocks; d) 5 to 70 parts of a tackifier compatible with the butadiene and isoprene midblocks, and the styrene end blocks; e) 5 to 30 parts of a tackifier compatible with the styrene end blocks, but not compatible with the butadiene and isoprene midblocks; f) 5 to 30 parts oil; and g) 0 to 5 parts wax.
Patent CA-2340716-A1 (CA)
Inventor: AGEE BRIAN G
IPC: H04J99/00
Filed: 1998-08-18
Abstract: L'invention concerne un système de télécommunications à spectre étalé à empilement de porteuses (10), basé sur un étalement de domaine fréquentiel multipliant une représentation à domaine temporel d'un signal dans la bande de base par un ensemble de porteuses sinusoïdales complexes superposées ou empilées. Dans une forme d'exécution préférée (10), l'étalement excite les séries d'une transformation de Fourrier rapide (FFT). Ceci réduit considérablement la complexité informatique pour des grandeurs FFT de sortie modérées. Des topologies de réseaux point-multipoint et multipoint-multipoint (sans noeuds) sont possibles. Une méthode d'annulation de code est comprise pour la suppression d'interférence et l'accroissement de la séparation de signaux en exploitant la diversité spectrale des diverses sources (11). Le système de base (10) peut s'étendre de manière à inclure des méthodes d'annulation à réseaux d'antennes multi-éléments (26/18), également pour la suppression d'interférence et l'accroissement de la séparation de signaux, au moyen d'une séparation dans l'espace. De telles méthodes permettent que des systèmes directifs et rétro-directifs soient adaptés, ou puissent être adaptés, à un environnement radio. De tels systèmes sont compatibles avec des formats de modulation à largeur de bande sur demande et d'ordre supérieur et utilisent des algorithmes d'adaptation à désétaleur évolués (SINR maximum).
Patent CA-2342142-A1 (CA)
Title: Systeme de retenue de dechets pour cylindres
Inventor: EDY CLINTON WAYNE GEORGE
IPC: B41F31/20
Filed: 1999-08-31
Abstract: Ce système de retenue de déchets pour cylindres (2), en particulier pour cylindres de presses d'impression, comporte un bac allongé (4), un ensemble raclette (6) fixé au bac (4) et comprenant une lame (10) dont le bord libre lèche le cylindre de façon à retirer du cylindre (2) la matière perdue et à l'envoyer dans le bac (4). Le bac (4) est intérieurement doublé d'une garniture (12) permettant de recueillir la matière perdue. L'ensemble raclette (6) et l'un des bords de la garniture (12) sont pourvus d'éléments coopérants mâle/femelle qui se montent en force l'un dans l'autre de façon à réaliser une liaison étanche libérable entre l'ensemble raclette (6) et la garniture (12).
Patent CA-2343929-A1 (CA)
Inventor: LIS DORA
IPC: A61P25/00
Filed: 1999-09-24
Abstract: The present invention provides molecular weight markers for accurate determination of the molecular weight of glatiramer acetate and other copolymers. The present invention further provides a plurality of molecular weight markers for determining the molecular weight of glatiramer acetate and other copolymers which display linear relationships between molar ellipticity and molecular weight, and between retention time and the log of the molecular weight. The molecular weight markers also optimally demonstrate biological activity similar to glatiramer acetate or corresponding copolymers and can be used for treating or preventing various immune diseases.