baber/WOPTO huggingface dataset:
Patent CA-2238222-A1 (CA)
Title: A sealing stopper for a syringe and a prefilled syringe
Inventor: MURAKI TOMOYASU
IPC: B29C39/20
Filed: 1998-05-21
Abstract: There can be provided a sealing stopper for a syringe, having very high sealing property and sliding property, and a prefilled syringe using this sealing stopper and capable of preserving a medicament for a long time and operating in easy and precise manner during injecting.  This syringe is also excellent in sanitary and operating property during a step of formulation or preservation of a medicament.  In this sealing stopper for a syringe, a surface of the rubber body is laminated with a tetrafluoroethylene resin film or ultra-high molecular weight polyethylene film having an average roughness Ra on the central line of the surface in a range of at most 0.05 µ m and a kinematic friction coefficient of at most 0.2.
Patent CA-2238776-A1 (CA)
Inventor: TSUDA HIROKI
IPC: H04B7/15
Filed: 1998-05-27
Abstract: L'invention est un dispositif de contrôle de la puissance d'émission pour les systèmes de radiocommunication mobiles à satellites qui permet, au moyen d'une construction simple qui ne perturbe pas les opérations de commande complexes, de tenir à jour la synchronisation des trames et de saisir le signal de synchronisation dans les stations réceptrices tout en contrôlant la puissance d'émission de façon optimale. Le dispositif de l'invention comprend une boucle de contrôle de la puissance d'émission dans chaque station passerelle et une station terminale/mobile qui servent à contrôler la puissance d'émission de la station. Durant l'émission, le niveau d'émission est surveillé et est comparé à un niveau d'émission préétabli pour modifier le temps d'échantillonnage moyen des erreurs entre les niveaux d'émission afin de faire varier la vitesse de réponse de la boucle de contrôle de la puissance d'émission. Quand le canal de l'utilisation du moment doit passer d'un canal de signalisation à un canal de communication, la puissance d'émission est contrôlée de façon à ce qu'il y ait pas de problème dans la continuité de la synchronisation à la réception. Par ailleurs, quand le canal doit passer d'un canal de communication à un canal de signalisation, la puissance d'émission est rapidement ramenée au niveau standard, de sorte qu'il n'y a pas de problème dans la saisie du signal de synchronisation ou dans la transmission des données.
Patent CA-2239261-A1 (CA)
Title: Optically enhanced dual liquid crystal display backlight
Inventor: BERNARD EDWIN I
IPC: G02F1/13357
Filed: 1998-06-01
Abstract: Light emitting devices are combined with non-imaging optical elements to create a backlighting system for liquid-crystal displays (LCDs). A pair of optically isolated sub-systems, a night vision imaging system (NVIS) (14) and a daylight system (12) are combined to provide optimum display legibility in ambient illuminations ranging from bright sunlight to total darkness. The sub-systems utilize non-imaging optics based upon total internal reflection (TIR) and light reflection, both coupled to a light emitting source, such as fluorescent tubes (34) and other linearly shaped light sources. Light reflectors (32) are shaped to concentrate light onto non-imaging optics lens (30) so as to compensate for non-linear characteristics of the TIR lenses.
Patent CA-2241291-A1 (CA)
Title: Polymeric mdi compositions for use in thermoformable foams
Inventor: NARAYAN THIRUMURTI
IPC: C08G18/30
Filed: 1998-07-22
Abstract: The present invention relates generally to polyisocyanate compositions for use in polyurethane thermoformable foams. The polyisocyanate compositions of the present invention which are also useful as binder/hardeners for prefoamed products offer improved stability at relatively low temperatures over other known polymeric diphenylmethane diisocyanate compositions.
Patent CA-2242373-A1 (CA)
Title: Teas for the amelioration of the effects of alcoholic drinks and processes for the production thereof
Inventor: NAM JONG HYUN
IPC: A61P39/00
Filed: 1997-04-03
Abstract: Natural teas for taking off the effects of drink and getting rid of hang-over. The teas can be produced by using as the main raw material an extract of the leaf, branch or root of both Japanese hazel and Japanese mountain ash or a powder prepared by direct pulverization of the leaf, branch or root thereof, and mixing the above extract or powder with an antidotal crude drug component comprising an extract of glossy privet (Ligustrum sp.) nuts and an extract of kudzu vine roots at various mixing ratios. The effects of the teas of taking off the effects of drink and getting rid of hang-over are produced by taking the teas before or after drinking.
Patent CA-2243111-A1 (CA)
Inventor: ROSE JEFFREY A
IPC: B60L11/18
Filed: 1997-01-10
Abstract: A disengageable electrical capacitive coupling for transmitting high frequency AC electrical current is provided. In an electric vehicle charging system, dual first connectors form the vehicle inlet (13), and mating dual second connectors form the coupler (14). A dielectric material (35), such as barium titanium oxide, is positioned between the connectors to form capacitors. A  holder secures the connectors together with the dielectric material in between. The interface formed is sufficient for establishing a highly efficient, compact electrostatic field for transmitting the current. Provision is made in the holder for easily disengaging the connectors once the charging cycle is complete. When utilized as a charging system, the capacitive charge coupling is connected between a high frequency drive unit on the charger side and a DC power conversion unit on the energy storage side, such as in an electric vehicle. In an alternative embodiment, the connectors comprise mating multiple section conductive plates formed of a spring metal core with a flexible dielectric coating, such as polypropylene. Variation of the various parameters of the charge coupling is utilized to enhance the power transfer capability.
Patent CA-2245232-A1 (CA)
Title: Optical disc copy management system
Inventor: BLAUKOVITSCH REINHARD
IPC: G11B7/28
Filed: 1998-08-06
Abstract: The invention relates to a method of obtaining a copy protected optical record carrier carrying information in different blocks, a method of accessing such a copy protected optical record carrier and such an optical record carrier itself. Access means for optical record carriers return different results when retrieving blocks, which contain incorrect address data in the corresponding subcode fields. A copy protection key will be implemented during manufacture of an optical record carrier by modifying the subcode address information of a predetermined pattern of blocks. It is normally not possible to copy incorrect address data onto an optical record carrier, since the address data will be newly generated during the copy process. Therefore, such a key can be utilized to distinguish between an original disc and a copied or non original disc. The key is preset before manufacturing of the optical record carrier itself and can therefore be used to encrypt the data stored on the optical record carrier. Upon accessing of the data, first the key is extracted from the optical record carrier and then the data can be decrypted utilizing this key.
Patent CA-2248279-A1 (CA)
Title: Method and apparatus for modifications of visual acuity by thermal means
Inventor: HOOD LARRY
IPC: A61B18/14
Filed: 1996-02-08
Abstract: This invention is a thermo-keratoplasty system and method for locally heating and reshaping a cornea in a manner that produces a minimal regression of the corneal correction. The system includes a probe (12) that is coupled to a power source which can provide current at a predetermined power, frequency and time duration. The probe (12) has a sharp tip (36) that is inserted into the stroma of the cornea (48). The tip has an insulated stop that controls the depth of tip penetration. Current flows into the cornea through the probe tip to locally heat and denature the corneal tissue. The denatured tissue causes a subsequent shrinkage of the cornea. A pattern of denatured areas can be created around the cornea to correct the vision of the eye.
Patent CA-2252854-A1 (CA)
Inventor: FREY CHERYL M
IPC: G02B5/124
Filed: 1996-08-28
Abstract: A retroreflective sheeting having a multiplicity of discrete, cube-corner elements cured in situ on a transparent, polymeric overlay film deformed into a three-dimensional structure so that base edges of a plurality of cube-corner elements are non-planar with respect to one another. The retroreflective article preferably has at least one target optical property. The present invention is also directed to a method of deforming the retroreflective sheeting to form a retroreflective article in which the base edges of a plurality of cube-corner elements are non-planar with respect to one another.
Patent CA-2253256-A1 (CA)
Title: Process for preparing low-molecular ethylene polymers under high pressure
Inventor: KINGMA AREND JOUKE
IPC: C08F110/02
Filed: 1997-04-24
Abstract: A process is disclosed for preparing ethylene polymers with a molecular weight Mw (weight average) lower than 20,000 g/mole at temperatures in a range from 200 to 280 ~C and pressures in a range from 1000 to 3500 bars in the presence of a catalyst system. The catalyst system used contains: (A) a non-bridged substituted or unsubstituted biscyclopentadienyl complex; (B) a metal compound of general formula (I) M1 (R1)r (R2)s (R3)t, in which M1 is an alkaline, an alkaline earth metal or a metal of the third main group of the periodic table;  R1 is hydrogen, C1-C10-alkyl, C6-C15-aryl, alkylaryl or arylalkyl with 1 to 10 C atoms in the alkyl radical and 6 to 20 C atoms in the aryl radical; R2 and R3 independently represent hydrogen, halogen, C1-C10-alkyl, C6-C15-aryl, alkylaryl, arylalkyl or alkoxy with 1 to 10 C atoms in the alkyl radical and 6 to 20 C atoms in the aryl radical; r is an integer from 1 to 3; and s and t are integers from 0 to 2, the sum r+s+t corresponding to the valency of M1;  and (C) a metallocene ion-forming compound selected in a group which consists of strong, neutral Lewis acids, ionic compounds with lewis acid cations and ionic compounds with Brönsted acids as cations. Components (A), (B) and (C) are mixed together and after at the latest 5 minutes are dosed in the reactor.
Patent CA-2254176-A1 (CA)
Title: A centralized billing service for a computer network
Inventor: CARTER JOHN MERVYN
IPC: G06Q30/00
Filed: 1998-11-16
Abstract: A centralized electronic billing apparatus to which at least one supplier and at least one consumer connects to in a computer network,  to thus enable electronic commerce to be carried out between the suppliers and consumers, has a means for accepting from an identified supplier usage charging terms concerning how prices are to be associated with amounts of consumption of a good or service by consumers; a means for accepting from the identified supplier  a consumer  usage  amount  indicating  an  amount  of consumption of a good or service by an identified consumer; and a means for preparing a total price amount which the identified consumer owes the identified supplier by correlating the usage charging terms with the consumer usage amount, and for preparing a bill reflecting the total price amount.
Patent CA-2256533-A1 (CA)
Title: Apparatus for soil purification and remediation method for contaminated soil
Inventor: SENSHU YURI
IPC: B09C1/08
Filed: 1998-12-18
Abstract: An apparatus for soil remediation to remedy a soil contaminated with a pollutant less affecting the environment, which comprises (a) excavating means for excavating the soil, (b) agitating means for agitating the soil, (c) feeding means for introducing into the soil at least one agent selected from the group consisting of a microorganism capable of degrading the pollutant, a nutrient for the microorganism and an inducer to make the microorganism express the pollutant-degrading activity, and (d) measuring means for measuring pollutant concentration in the soil.
Patent CA-2258948-A1 (CA)
Title: Chimeric poxvirus comprising sequences of a vector component
Inventor: FALKNER FALKO-GUENTER
IPC: A61K48/00
Filed: 1999-01-14
Abstract: A chimeric poxvirus is disclosed, which comprises the sequences of the vector component of a retroviral vector particle and optionally the packaging component of a defective retroviral particle. The chimeric poxvirus according to the invention particularly can be used for applications in gene therapy or tumor therapy.
Patent CA-2259940-A1 (CA)
Title: High-affinity interleukin-4 muteins
Inventor: GREVE JEFFREY
IPC: A61P37/02
Filed: 1997-07-09
Abstract: A recombinant human IL-4 mutein numbered in accordance with wild-type IL-4 wherein the mutein comprises at least one amino acid substitution in the binding surface of either the A- or C-alpha helices of the wild-type IL-4 whereby the mutein binds to the IL-4R.alpha. receptor with at least greater affinity than native IL-4. The substitution is more preferably selected from the group of positions consisting of, in the A-helix, positions 13 and 16, and in the C-helix, positions 81 and 89. A most preferred embodiment is the recombinant human IL-4 mutein wherein the substitution at position 13 is Thr to Asp. Pharmaceutical compositions, amino acid and polynucleotide sequences encoding the muteins, transformed host cells, antibodies to the muteins, and methods of treatment are also described.
Patent CA-2262791-A1 (CA)
Title: Amino acid ester containing azole antifungals
Inventor: HENDRICKX ROBERT JOSEF MARIA
IPC: A61K/
Filed: 1998-02-03
Abstract: The present invention concerns novel compounds of formula (I), the N-oxide forms, the pharmaceutically acceptable addition salts thereof and stereochemically isomeric forms thereof, wherein -A-B- forms a bivalent radical of formula -N-CH- (a), -CH=N- (b), -CH=CH- (c), L represents the acyl moiety of an amino acid; D is an azole containing 1,3- or 1,4-dioxolane derivative as broad-spectrum antifungals; their preparation, compositions containing them and their use as a medicine.
Patent CA-2262803-A1 (CA)
Title: Sheet feeder
Inventor: VEDOY ARILD
IPC: B65H3/52
Filed: 1999-02-24
Abstract: An electromechanical friction feed device for controlling the single feed of sheet-like articles from a stack of such articles has a feed belt and stripper wheel that are used to draw a single article from the bottom of the stack to the discharge section of the feeder. The stripper wheels slowly rotate in a direction opposite to the feed movement to hold the penultimate sheet and those above it in a stack while the lowermost product is translated by the feed belt through the machine. The reverse rotation of the stripper wheel is accomplished using a dual ratchet mechanism along with unidirectional needle bearing assemblies that provide a smooth, continuous rotation of the stripper wheels. The two ratchet mechanisms are driven 180° out of phase with respect to one another to achieve the smooth continuous stripper wheel rotation. By using a dual ratchet mechanism instead of gears, the center distance between the feed belt drive shaft and the stripper wheel shaft can be adjusted to accommodate various product thicknesses. A discharge section of the friction feeder pulls the product from the feed belt and moves it at a higher velocity than that of the feed belt so as to provide separation between adjacent products being fed from the stack.
Patent CA-2264579-A1 (CA)
Title: An arrangement relating to high-speed tools
Inventor: LIND BJOERN
IPC: B23Q1/76
Filed: 1997-08-28
Abstract: A high-speed milling or drilling tool includes a cutting part in the form of a cutting head (24) and a fastener means (27) provided on the end of the tool remote from the cutting head (24). At least a part of the tool forms a bearing surface (26) for a bearing that takes up radially acting cutting forces.
Patent CA-2265025-A1 (CA)
Inventor: MORITZ TYRONE J
IPC: F02P17/12
Filed: 1999-03-08
Abstract: An engine analyzer stores acquired cylinder waveform data in circular buffers respectively associated with the cylinders in accordance with cylinder selection by the user, with each buffer including a plurality of storage cells respectively storing data for individual firing cycles of the associated cylinder, and simultaneously displays the waveform for a single selected cylinder on one trace of a display screen and waveforms for all cylinders for which data is stored on a second trace, so that data can be acquired and displayed from direct ignition engines with the use of a single pickup lead connected to selected cylinders one cylinder at a time. Various display modes are possible, including a frozen mode in which all stored waveform data may be reviewed and displayed.
Patent CA-2266158-A1 (CA)
Title: Connecting devices and method for interconnecting circuit components
Inventor: LANDREVILLE JEAN-LUC
IPC: H01R12/00
Filed: 1999-03-18
Abstract: An integrated circuit package having metallized contact pads is provided with flexible or resilient connecting devices permanently attached onto each contact pad. The connecting devices are flexed when so attached, and are aligned and assembled onto corresponding pads of a printed circuit board, and provide electrical interconnection between the integrated circuit package and a printed circuit board. Electrically conducting connecting devices and method of attaching the devices to the package are described.
Patent CA-2269676-A1 (CA)
Title: Apparatus for the injection molding of a metal alloy: sub-ring concept
Inventor: KILBERT ROBERT K
IPC: B22D17/20
Filed: 1997-07-30
Abstract: The present invention reveals an improvement in an apparatus for injection molding a metallic material having dendritic properties. In the improvement, a sub--ring is placed under a piston ring on a sliding seal ring of a non-return valve assembly. The sub-ring seals the pressure and metal flow in the apparatus, virtually eliminates piston ring leakage and extends the usable life of the non-return valve assembly.
Patent CA-2270806-A1 (CA)
Inventor: STOULIL GEORGE JAMES
IPC: H04L12/16
Filed: 1999-05-05
Abstract: A digital data protocol converter for use in transmitting packet data signals over a data transport system. The hardware converter converts data signals received from a digital telephone interface to packet data signals required by a data transport system protocol. The real-time converter also converts the data packet signal back to a digital telephone interface signal for reception at the recipient end.      The converter is positioned at the access site of a data transport system and comprises a digital telephone interface for linking digital telephone lines to the converter. The digital telephone interface is attached to a transmitter and a receiver, whereby the digital telephone interface receives data signals in a digital telephone interface format and transmits this data signal to a real-time converter. The real-time converter converts the digital telephone interface data signal to a packet data signal format that is the protocol used by the data transport system. The receiver receives the packet data signals from the data transport system, the transmitter sends the packet data signals to the converter where the packet data signals are converted back to digital telephone interface signals to be routed to the recipient as digital telephone interface data signals. A method for converting digital telephone interface signals to packet data signals and for converting packet data signals to digital telephone interface signals is also disclosed.
Patent CA-2271499-A1 (CA)
Title: Electric gas-lighter
Inventor: BIANCHI RAOUL
IPC: F23Q3/00
Filed: 1999-05-11
Abstract: The electronic circuit of a gas-lighter has an electronic filter inserted between the input terminals of the gas-lighter and a current-discharge generating circuit. The filter has a first pair of resistors located respectively between a first of the input terminals and a first intermediate node, and between a second of the input terminals and a second intermediate node; a capacitor located between the first intermediate node and the second intermediate node; and a second pair of resistors located respectively between the first intermediate node and the current-discharge generating circuit, and between the second intermediate node and the current-discharge generating circuit.
Patent CA-2272518-A1 (CA)
Title: Device for watering unattended houseplants
Inventor: MCGOUGH CHARLES B
IPC: A01G27/00
Filed: 1999-05-21
Abstract: This invention is a device for automatically watering unattended houseplants with ordinary tap water. The device controls the rate of discharge of water from a reservoir by means of a replaceable multilayer sandwich-type flow control wafer, which is made of several layers of deformable gasket material, laboratory filtration paper, and thin flexible plastic. The gasket and plastic layers contain designed patterns of through-holes and passages which force the water to flow over and through the filtration paper to control the rate of release of water from the reservoir. The design also uses the filtration paper to remove particles from the tap water which could clog the system and stop the flow. Over the course of the watering cycle the water gradually loosens the adhesive bonds between the filtration paper and the plastic, which increases the effective flow area of the filtration paper to partially compensate for the reduction in pressure head which occurs as the reservoir empties, thus keeping the water flow rate more constant over the watering cycle than it would be if controlled only by a simple orifice or filter. The watering device includes registration and compression rings which position and seal the flow control wafer, a concave funnel-like reservoir opening for filling the device in situ, and a narrow integral spike which supports the device in the plant soil and creates an open vertical passage which facilitates water penetration deep into the plant's root system.
Patent CA-2273425-A1 (CA)
Inventor: ANDERSON AARON
IPC: G02B6/44
Filed: 1999-06-01
Abstract: A composite cable for distributing electrical power to components in an optical fiber network and for transmitting optical signals between optical fiber network components includes at least one layer of insulated electrical conductors arranged in side-by-side relation to provide a layer of conductors of a thickness substantially equal to the thickness of the conductors. The conductors of the at least one layer of conductors are S-Z stranded and surround the optical fibers which are loosely contained in at least one plastic buffer tube to provide desirable structural and operational features to the cable and to an optical fiber network in which the cable can be included.
Patent CA-2273987-A1 (CA)
Title: System for managing the distribution of prizes and winnings using chip cards
Inventor: FOGLINO JEAN-JACQUES
IPC: G07F7/10
Filed: 1997-12-10
Abstract: The invention concerns a system for the distribution of prizes and winnings using chip cards (C1,..., Cj). In order to simplify the management of the distribution of prizes and winnings to all the members of a group benefiting or not from a service, it is proposed to use chip cards and associated readers for distributing the management means contributing to this random orientation among all the chip cards of said members or among the readers and the chip cards. The invention is applicable to the management of the rate of redistribution of winnings in the case of a game system.
Patent CA-2274342-A1 (CA)
Inventor: BEST WALTER
IPC: D01F1/10
Filed: 1999-06-11
Abstract: The invention concerns a monofilament for use in engineering textiles, in particular in papermaking fabrics, made up of a plastic material having a principal constituent that is polytrimethylene terephthalate (PTMT) and at least one additional constituent, and is characterized in that the additional constituent is a nylon or a mixture of several nylon types. The invention further concerns a papermaking fabric having the aforesaid monofilaments.