baber/WOPTO huggingface dataset:
Patent CA-2227780-A1 (CA)
Title: Electronic delay detonator
Inventor: SAKAMOTO MIDORI
IPC: F42D1/045
Filed: 1996-07-24
Abstract: An electronic delay detonator comprises an electronic timer (100) and an electric detonator (200) fired by ignition of an ignition element. The timer includes an energy charging circuit (120) for storing electrical energy supplied from a power supply, a delay circuit (30) for counting a time period by using the electrical energy stored in the energy charging circuit to thereby output a trigger signal, and a switching circuit (140) for supplying the electrical energy stored in the energy charging circuit to the ignition element in response to the trigger signal. To an impact externally applied to the electronic delay detonator, a lower limit of an impact value in an induced detonation range of the electric detonator substantially overlaps with an upper limit of an impact value in a range in which the electronic timer is operable. Thus, no explosive remains misfired even in adverse use environments. When the damage of the quartz oscillator (131) is detected, the electric detonation is fired in response to the detected signal.
Patent CA-2230302-A1 (CA)
Title: Coated feed agglomerates and methods of making the same
Inventor: BEVANS BASIL D
IPC: A23K1/00
Filed: 1998-02-23
Abstract: Coated animal feed agglomerates such as pellets are made starting with uncoated agglomerates or pellets that may be formed of easily agglomerated or pelleted ingredients but which may be lacking in desirable nutritional or other ingredients. A binder such as a viscous aqueous gel is coated onto the uncoated agglomerates or pellets. Thereafter, the damp binder coated agglomerates or pellets are dusted with a powder containing ingredients having a substantial lactose content which usually are not amenable to being extruded. After the dusting powder has been applied, the coated and dusted pellets undergo a curing step before they are dried and cooled.
Patent CA-2231006-A1 (CA)
Title: Telephone line automatic prefix dialer
Inventor: ROSEN HOWARD B
IPC: H04M1/27485
Filed: 1998-03-04
Abstract: A method, and apparatus for practicing the method, for eliminating the necessity for manually dialing a local area code as a prefix to a call within the same area code in telephone systems in which such action is a requirement. An automatic dialer is activated and immediately transmits the local area code onto the caller's telephone line when an off-hook condition is sensed; e.g., when a telephone handset is picked up. Thus, the caller can merely then dial an ordinary seven digit telephone number within the local area code. In order to provide for the selective dialing of long distance, when the caller "flashes" his line within a predetermined period (typically, a few seconds) after picking it up, a hang-up followed by a second off-hook is emulated; however, the automatic dialer is inhibited from again transmitting the area code. Consequently, the caller is presented with a dial tone, and a telephone number, including an area code which may be different from the local area code, may be successfully dialed.
Patent CA-2231804-A1 (CA)
Inventor: MOYER RICHARD W
IPC: C07K14/81
Filed: 1996-09-11
Abstract: Disclosed is a method for inhibiting cell-mediated (e.g., CTL-mediated) killing of a mammalian target cell by expressing in the target cell a poxvirus serpin proteinase inhibitor (SPI)-1. If desired, SPI-2 can be expressed in the cell in addition to SPI-1. Cells expressing these proteinase inhibitors are resistant to cell-mediated killing and apoptosis.
Patent CA-2236076-A1 (CA)
Inventor: DE LA BROUSSE FABIENNE CHARLES
IPC: A61K38/00
Filed: 1996-11-18
Abstract: The invention relates to the Ob gene transcriptional promoter. The subject promoters generally comprise a C/EBP binding site and a novel untranslated Ob gene exon. Ob gene promoters are used in diagnosis and pharmaceutical development. In particular, transfected adipocytes comprising Ob gene promoters operably linked to a reporter are used in high-throughput pharmaceutical screens.
Patent CA-2239156-A1 (CA)
Title: Bande protectrice d'aretes
Inventor: ARROWSMITH EDWARD MORRIS
IPC: B29C48/13
Filed: 1996-12-03
Abstract: Cette invention concerne une bande en matière plastique extrudée (1) conçue pour protéger l'arête d'un article à surface courbe. Ladite bande comporte une rainure longitudinale (6), une partie couvrante souple (2) prolongeant un des côtés de la rainure longitudinale conçue pour recouvrir et épouser la surface courbe d'un article à protéger, et une pluralité de languettes (3-5) articulées et en saillie à partir de l'autre côté de la rainure longitudinale, ladite partie couvrante comportant une pluralité de trous (9, 10) qui sont situés au niveau, ou à proximité, du bord le plus externe de ladite partie couvrante.
Patent CA-2239670-A1 (CA)
Title: Graphitizing electric furnace
Inventor: MOCHIZUKI CHITOSHI
IPC: C01B31/04
Filed: 1998-06-04
Abstract: A carbon powder inlet and a graphite powder collect-ing port are oppositely arranged on a furnace body. At least a pair of electrodes are oppositely arranged in the furnace body with respect to a graphitizing area at an intermediate position between the inlet and the collecting port. The carbon powder at a core of the furnace body is graphitized while the surrounding carbon powder adjacent to the furnace wall serves as a heat insulator to the furnace body. As a result, the graphitizing area is properly maintained at high temperature.      No impurities can intrude into the graphite powder to be collected through the collecting port and only the pure graphite powder can be properly collected since no materials exist in the furnace body other than the carbon powder as raw material.      The carbon powder adjacent to the furnace wall and surrounding the electrodes is maintained at low temperature and does not move, which makes it possible to alleviate burning damage of and improve durability of the furnace body and the electrodes.
Patent CA-2240755-A1 (CA)
Title: Method of preventing afterblast sulfide dust explosions
Inventor: CRANNEY DON H
IPC: F42D5/00
Filed: 1998-07-09
Abstract: The invention comprises a method of preventing afterblast sulfide dust explosions in blasting operations involving sulfide-containing ores, which method comprises (a) loading a borehole that has been drilled  into a  sulfide-containing ore body with an emulsion blasting agent that comprises an emulsifier, a continuous organic fuel phase, a density control agent, and a discontinuous oxidizer salt solution phase that comprises inorganic oxidizer salt(s), water and urea as a chemical inhibitor in an amount of from about 1% to about 10% by weight of the blasting agent, the blasting agent being loaded in a coupling relationship with the borehole; and (b) detonating the blasting agent.
Patent CA-2246151-A1 (CA)
Inventor: CHENG XINPING
IPC: G01V1/28
Filed: 1996-11-20
Abstract: The general object of the present invention is to provide a method for determining and displaying the relative changes of elastic moduli and that of density of geologic formations and for utilizing these relative changes and plottings for gas/oil exploration, especially for direct gas and light oil detection. The said relative changes of elastic moduli are the relative change of Lame constant .DELTA..lambda./(.lambda.+2µ), the relative change of shear modulus .DELTA.µ/(.lambda.+2µ) and/or .DELTA.µ/[k+(4/3µ], the relative change of bulk modulus .DELTA.k/[k+(4/3)µ]; and the relative change of density is .DELTA.p/p.
Patent CA-2246252-A1 (CA)
Title: Apparatus and method for system control
Inventor: PAVER NIGEL C
IPC: G06F9/318
Filed: 1998-08-31
Abstract: A control apparatus and method is provided for controlling operations of functional units in systems. The control apparatus and method implement a set of operations that can include dependencies between the functional units 802-812 of a system 800 to complete each operation. For example, in an asynchronous digital processor, self-timing and inter-block communication are used to implement a self-timed scheduler. The self-timed scheduler and method implement an instruction set using a plurality of functional units 802-812 of the asynchronous digital processor. A scheduler can include a scheduler decoder 814 that decodes each instruction to generate functional unit schedule and control information, a communication device 820 and a plurality of scheduler functional unit controllers 816. Each of the scheduler functional unit controllers corresponds to one of the plurality of functional units of a system. According to the present invention, an entire instruction or instruction set can also be modified, for example, during initialization or execution. The programmable circuit 1302 for a data processing apparatus can include a plurality of functional units 802-812, each functional unit performing a set of prescribed operations. The programmable circuit 1302 can modify an entire instruction. A controller that decodes a current instruction to perform a corresponding instruction task using the plurality of functional units and a communications device coupling the functional units, the programmable circuit and the controller.
Patent CA-2247536-A1 (CA)
Title: Remote proxy system and method
Inventor: WANG YANG-WEI
IPC: G06F12/00
Filed: 1996-03-26
Abstract: An interface between a protected computer or computer network (52) and the World Wide Web (WWW) (68). The interface comprises a split proxy system (56, 66) that encapsulates TCP/IP transmissions into a script transmission which is not subject to problems in high latency systems, thereby greatly improving WWW  access, via a wireless modem or other low-bandwidth communications network.  The split proxy interface (56, 66) also provides compression, encryption and filtering capabilities and allows receipt of unsolicited transmissions from the service provider for such purposes as automatically updating or configuring WWW access software.
Patent CA-2248305-A1 (CA)
Title: Dispositif permettant de mesurer l'attention visuelle que des sujets accordent a un objet visible
Inventor: CLAESSENS DOMINIQUE PAUL GERAR
IPC: A61B5/16
Filed: 1997-04-14
Abstract: Afin de mesurer l'attention visuelle que des personnes ou des animaux accordent à un objet visible, un faisceau (9) est émis vers une zone d'observation (1) comprenant les personnes ou les animaux soumis au test. Un système de mesure, situé à proximité de l'objet, comprend une source de rayonnements qui va émettre un faisceau parallèle invisible (9), par exemple, un élément de balayage optique qui va guider le faisceau (9) à travers la zone d'observation (1), ainsi qu'un système de détection (6, 7) qui va recevoir les rayonnements dispersés depuis ladite zone d'observation (1). Les rayonnements provenant de la rétine et/ou de la cornée des personnes ou des animaux sont ensuite mesurés de manière sélective, puis transformés en un signal d'évaluation.
Patent CA-2249572-A1 (CA)
Inventor: OGDEN JOHN E
IPC: A61M37/00
Filed: 1997-03-13
Abstract: The present invention relates to devices and methods for enhancing the rate and efficacy of permeation of a drug into and through skin and into the circulatory system utilizing ultrasound. A transducer receives electrical signals from a generator and transforms it into ultrasound at a preselected frequency. The ultra sound is transmitted from the transducer to the application site via an acoustic transmission line. In a closed loop embodiment a sensor, e.g. a temperature sensor, provides a feedback signal via a control electronic circuit to the generator.
Patent CA-2249801-A1 (CA)
Title: Batterie d'accumulateurs au lithium et compose cathodique
Inventor: TSUTSUMI MASAMI
IPC: H01M10/0566
Filed: 1998-10-06
Abstract: Une batterie d'accumulateurs au lithium comprend une cathode qui peut être chargée de manière déchargeable avec des ions lithium, une anode faite en métal lithium, alliage de lithium ou un autre matériau d'anode qui peut être dopé de manière libérable aux ions lithium, et un électrolyte permettant la migration des ions lithium entre les deux électrodes. La cathode contient un composé halogène qui libère des atomes d'halogène, des ions halogène ou une substance réactive contenant de l'halogène, afin de réagir avec l'anode, ce qui désactive l'anode pour empêcher une production excessive de chaleur avant que l'oxygène libéré par la cathode en raison d'une hausse de température ne réagisse avec l'anode.
Patent CA-2250935-A1 (CA)
Title: Automated system and method for checkless check transaction
Inventor: FUNK WADE L
IPC: G06Q40/00
Filed: 1997-03-27
Abstract: The automated improved check processing system and method includes a data entry device (200, 202) for receiving checking account information (304, 306, 308) and a check amount (302) of a check (210, 300) provided in a transaction.  The transaction may take place at a bank teller window or a point-of-sale. The checking account information and check amount are electronically transmitted to the institution or servicer (208) drawn on for electronic presentment and posting to the proper checking account. Additionally, an image capturer (204) may be used at the time of the transaction to obtain a digitized image of the face of the check. The captured image may then be forwarded electronically to a database, which is readily accessible for research purposes.
Patent CA-2253332-A1 (CA)
Title: Modular seal assembly for a wall opening
Inventor: GRIFFITHS CARL R
IPC: G02B6/44
Filed: 1997-06-06
Abstract: A modular seal assembly for sealing a circular opening through a wall, usually with one or more conduits (i.e., telecommunication cables) extending through the seal. The assembly includes an outer pressure annulus and a thick inner pressure disc, both of natural or synthetic rubber, EPDM, urethane, or other elastomer. In the outer annulus the elastomer is an annular series of interconnected blocks of length (L1) having a central opening of radius (R2); a series of pressure bolts compress the blocks axially, expanding the annulus both outwardly and inwardly. The inner disc, which has an outer radius of about (R2) and is interlocked with the elastomer blocks of the outer annulus, has a multiplicity of circular layers, much like an onion; the layers are concentric about an opening through which a conduit usually extends. Tightening the pressure bolts causes the outer annulus to compress the disc, forcing the disc against the conduit to complete a seal; the elastomer blocks of the outer annulus seal against the wall opening.
Patent CA-2255939-A1 (CA)
Title: Herpes simplex virus strains
Inventor: DELUCA NEAL A
IPC: C12N5/10
Filed: 1997-05-22
Abstract: The present invention provides an HSV having a genome from which, in the presence of the ICP4 gene product, a native immediate early gene is expressed with delayed kinetics, and an HSV having a genome with a mutation in each of the genes encoding ICP4, ICP27, and another HSV gene; preferably such HSV have one or more exogenous genes. The present invention further provides a method of expressing a polynucleotide within a cell comprising infecting the cell with such an HSV. Furthermore, the present invention provides a cell line having DNA encoding the HSV proteins ICP4, ICP27, and ICP0, and a method of producing an HSV vector by employing such a cell line.
Patent CA-2257106-A1 (CA)
Title: Improvements in detection systems and methods for predicting the dissolution curve of a drug from a pharmaceutical dosage form
Inventor: PALERMO PHILIP J
IPC: G01N21/65
Filed: 1997-06-04
Abstract: The present invention relates to an improvement in a detection system used for continuously measuring the release of a drug from a pharmaceutical dosage form comprising a singular dissolution vessel or multiple dissolution vessels containing a dissolution medium and a measuring device for detecting the amount of drug released at a given time, the improvement comprising a mixing shaft and a probe placed within the mixing shaft or outside the individual dissolution vessels, the probe capable of measuring the dissolution characteristics using UV, IR, near-IR, fluorescence, electrochemical, and Raman spectroscopy techniques. The present invention also relates to a method for predicting the dissolution curve provided by a controlled release pharmaceutical dosage form comprising taking continuous measurements of the amount of drug released from a dosage form for a portion of the time over which the drug is expected to be released and predicting the remainder of the dissolution curve based on the values obtained.
Patent CA-2259819-A1 (CA)
Title: Method and apparatus for mud pulse telemetry in underbalanced drilling systems
Inventor: HARRELL JOHN
IPC: E21B47/18
Filed: 1999-01-18
Abstract: A mud pulse telemetry system uses a downhole pulser to produce sequences of positive and/or negative pulses according to a selected pattern. Positive pulses, negative pulses, and combinations thereof may be produced. A flow rate sensor at the surface measures changes in the flow rate at the top of the wellbore instead of or in addition to changes in the pressure. The flow rate changes are detectable even though the pressure pulses themselves may have a poor signal to noise ratio. This enables the invention to function effectively in underbalanced drilling wherein the use of light muds with a high gas content is required. One embodiment of the invention uses a conventional downhole pulser with the main valve closed and the pilot valve operating in a direct pulse mode.
Patent CA-2261146-A1 (CA)
Inventor: LEE ADAM T
IPC: B01D3/18
Filed: 1997-07-22
Abstract: A method of and apparatus for deentrainment and mass transfer in a chemical process tower (12). The apparatus comprises a structured packing layer (e.g. corrugated sheet) (104) assembled with a second type of packing layer (e.g. wire mesh) (102) disposed adjacent the underside of a process tower tray (49). The dual layer (100) reduces liquid entrainment in ascending vapor flow and provides an additional region for mass transfer.
Patent CA-2263320-A1 (CA)
Title: A lithium nickel cobalt complex oxide, a process for preparing the same and a positive electrode active material for a secondary battery
Inventor: FUKAMI TADASHI
IPC: H01M4/525
Filed: 1997-08-11
Abstract: A composite oxide represented by the general formula (I): LiyNi1-xCox1Mx2O2, wherein M represents at least one member selected from the group consisting of Al, Fe, Mn, and B; 0.9 y 1.3; 0 < x 0.5; 0 < x1 < 0.5; x1 + x2 = x; when M represents at least one member selected from among Al, Fe, and Mn, then 0 < x2 0.3; when M represents B, then 0 < x2 < 0.1; when M represents B and at least one member selected from among Al, Fe, and Mn, then 0 < x2 < 0.3; provided that the proportion of B is in the range of from 0 to 0.1. This composite oxide can provide a cathode active material for rechargeable batteries which possesses excellent discharge-charge cycle properties, can maintain a high battery capacity comparable to the conventional LiNiO2 even after an increased number of cycles, and has an improved cycle property (stability) at high temperatures.
Patent CA-2264745-A1 (CA)
Title: Method of inhibiting biosynthesis of eif5a
Inventor: BERGERON RAYMOND J JR
IPC: A61P31/18
Filed: 1997-09-12
Abstract: A methcsd and pharmaceutical composition for inhibiting or preventing the intracellular biosynthesis of EIf5A by the administration to a human or non-human mammal in need thereof an amount of a polyamine analogue or salt thereof sufficient to deplete the supply of intracellular spermidine required for EIfSA biosynthesis.
Patent CA-2264945-A1 (CA)
Inventor: CHATTERJEE KUNTAL
IPC: C11D1/90
Filed: 1997-09-10
Abstract: Automatic dishwashing detergent compositions comprising a mixed surfactant system comprising low cloud point nonionic surfactant and charged surfactant selected from anionic surfactants, zwitterionic surfactants, and mixtures thereof.
Patent CA-2265874-A1 (CA)
Title: Condensed n-acylindoles as antitumor agents
Inventor: DENNY WILLIAM ALEXANDER
IPC: A61K31/407
Filed: 1997-09-12
Abstract: The invention provides compounds of general formula (I), wherein: X is halogen or OSO2R, where R represents H  or is unsubstituted or hydroxy- or amino--substituted lower alkyl; Y is a nitro or amine group or a substituted derivative thereof; W is selected from the structures of formulae (Ia, Ib or Ic), where E is N- or -CH-, G is 0, S, or NH, and Q is either up to three of R, OR, NRR, NO2, CONHR, NHCOR or NHCONHR, or is an additional group of formulae (Ia, Ib or Ic) and HET represents a 5- or 6-membered carbocycle or heterocycle; and A and B  collectively represent a fused benzene or 2--CO2R pyrrole ring. In one embodiment, the group Y is an amine derivative substituted by a group which is a substrate for a nitroreductase or carboxypeptidase enzyme such that one of said enzymes is able to bring about removal of that group.
Patent CA-2279561-A1 (CA)
Inventor: TULIP JOHN
IPC: G01N21/39
Filed: 1999-08-03
Abstract: A gas detector, comprising a laser transmitter, a laser receiver, a gas reference cell formed of a sealed encircling wall defining an interior volume, a liquid partially filling the gas reference cell, a reference gas dissolved in the liquid and forming a vapor within the interior volume, at least a portion of the sealed encircling wall being transparent to electromagnetic radiation emitted by the laser transmitter to permit electromagnetic radiation to enter the gas reference cell, traverse a path through the vapor and exit the gas reference cell; and the laser transmitter, laser receiver and gas reference cell being coupled together with light guiding elements to form light paths that pass from the laser transmitter to the laser receiver through the gas reference cell and from the laser transmitter to the laser receiver through a target zone. A method of detecting a target gas, the method comprising the steps directing laser light from a laser transmitter to a laser receiver through a target zone and through a gas reference cell containing a sample of the target gas, wherein the gas reference cell contains a liquid in which the target gas is partially dissolved; detecting light from the laser transmitter that has passed through the target zone and light from the laser transmitter that has passed through the gas reference cell; and analyzing the detected light for the presence of the target gas in the target zone.
Patent CA-2280435-A1 (CA)
Inventor: RESCH DARREL R
IPC: B05B7/06
Filed: 1999-08-18
Abstract: A purification device utilizing ozone, this device comprising a body member having an internal passage through which propellant gas is constrained to flow under pressure, with the internal passage forming an outlet at a downstream location in the body member. Liquid is supplied in limited quantities to the propellant gas in the internal passage, with the introduction of the liquid into the propellant gas causing thin ribbons and threads of liquid to flow into and with the gas flowing out of the outlet and to break into fine particles. An ozone supplying conduit is disposed in a central location in the outlet, with the conduit arranged to emit ozone into the propellant gas at a location near the outlet and to create a turbulent propellant gas region downstream of the ozone conduit. The propellant gas flows around the ozone conduit at a substantial velocity and thus serves to induce the flow of ozone from the conduit. The position of the outlet of the ozone conduit with respect to the thin ribbons and threads of liquid being such that the thin ribbons and threads of liquid enter the turbulent propellant gas region as the ribbons and threads are being shredded into fine particles. The ozone in the turbulent propellant gas comes into intimate contact with the fine particles as they are created and are collapsing into spherical droplets, thus promoting the absorption of the ozone into the fine particles.