baber/WOPTO huggingface dataset:
Patent CA-2255719-A1 (CA)
Title: Device and method for transmitting acoustic wave into underground, for receiving the acoustic wave, and underground exploration method using above mentioned device
Inventor: YAMAMOTO TOKUO
IPC: G01V11/00
Filed: 1998-03-17
Abstract: On the transmitting side, a piezoelectric device (34) is so provided that the transmission direction is vertical to the wall of an exploration well (12). An anvil (42) provided on the exploration hole wall side of the piezoelectric device is pressed against the wall of the investigation well by a clamping mechanism (64). On the receiving side, the upper and lower parts of an exploration well (112) are closed with a packer (182) and a shut-off valve (180) to block the flow of fluid, and a cable (150) above a receiver is fixed to the wall of the exploration well by a clamping mechanism (164) to reduce noise propagated through the cable. The measured depth and the distance between the exploration wells in oil exploration and soil survey using acoustic tomography can be increased and the applicable range can be widened.
Patent CA-2256830-A1 (CA)
Title: Signal conversion apparatus and method
Inventor: NAKAYA HIDEO
IPC: H04N9/78
Filed: 1998-12-18
Abstract: A simplified Y/C separation circuit in which, a plurality of luminance signals are calculated for the subject pixel based on an NTSC signal of the subject pixel and NTSC signals of pixels that are close to the subject pixel spatially or temporally. Correlations between the plurality of luminance signals are obtained in a difference circuit and a comparison circuit. In a classification circuit, classification is performed, that is, the subject pixel is classified as belonging to a certain class, based on the correlations between the plurality of luminance signals. Prediction coefficients corresponding to the class of the subject pixel are read out from a prediction coefficients memory section. The RGB luminance signals of the subject pixel are then determined by calculating prescribed linear first-order formulae.
Patent CA-2257147-A1 (CA)
Title: Method to improve the water-holding capacity, color, and organoleptic properties of beef, pork, and poultry
Inventor: RUSSELL RONALD L
IPC: A23L13/70
Filed: 1997-06-05
Abstract: A method of improving the color, water-holding capacity, and organoleptic qualities of beef, pork, lamb, veal, and poultry by injecting or perfusing a solution of sodium bicarbonate into a carcass is disclosed.
Patent CA-2258690-A1 (CA)
Inventor: SU SULTON
IPC: H04W88/02
Filed: 1997-06-24
Abstract: A voice-pager system that facilitates reception of audio messages (118 and 120) by a pager or (voice-pager) (102). The voice pages is similar to a telephone answering machine. The voice-pager system facilitates transference of greater information content because more information can be entered in a given period of time by a user by spoken voice than a keyboard.
Patent CA-2259119-A1 (CA)
Title: Connection module for a submergible pumping system and method for pumping fluid using such a module
Inventor: MANN JAY S
IPC: E21B43/38
Filed: 1999-01-12
Abstract: A connection module is disclosed for a submergible pumping system of the type including a submergible electric motor and a pump drivingly coupled to the motor. The system may also include additional components such as a fluid separators, an injection pump, and so forth. The connection module includes a body through which a fluid passage is formed. A recess is formed in the body for receiving a cable for transmitting power to the submergible electric motor. The fluid passage transfers fluid within the pumping system, such as by means of shrouds disposed around the system components.  The connection module also includes an electrical connector for completing current carrying paths between a supply cable and the motor. The connection module may thus serve as the motor head in which the electrical connections are made, but through which fluid is channeled to system components. The module is particularly useful for connecting a shroud around the motor, while accommodating the power cable entry at an end of the motor.
Patent CA-2260605-A1 (CA)
Title: Method of selectively changing an image on a sign and a sign with selectively changeable image display
Inventor: KERN TREVOR JASON
IPC: G06F3/12
Filed: 1999-01-29
Abstract: A method of selectively changing an image on a sign and a sign with selectively changeable image display. A body is provided having a viewing aperture, a printer, and a printed media support for tensioning and advancing printed media produced by the printer across the viewing aperture. The printer is connected to a computer and print files downloaded from the computer to initiate printing by the printer onto printed media and advancing printed media across the viewing aperture.
Patent CA-2261379-A1 (CA)
Inventor: WEISS RICHARD A
IPC: H04M11/02
Filed: 1999-02-10
Abstract: A call parking and paging system includes a call parking entity and a paging entity. The call parking entity receives a call and automatically parks the call, in some operations against a designated resource. The paging entity provides a page based upon an intended recipient of the call.      Upon receiving a response to the page, the call parking and paging system may then assist in delivering the parked call. The call parking and paging system may be supported by a PBX, by a telephone system central exchange or by another communication system. Additional features may include a voice processing system, a validation entity, a directory system, a messaging system and an information database. Paging resources support voice pages, electronic pages and email that apprise the intended recipient of the parked call. The call parking and paging system may be accessed directly via a dialed number or from a call greeting system or may be invoked by an attendant or by a caller when attempted delivery to a particular extension fails. The validation entity may validate a request to issue a page and/or a request to receive a parked call. The call parking and paging system may direct pages intelligently by locating the intended recipient and then sanding the page based upon a determined location. The call parking and paging system may deliver calls to designated parking extensions, ordinary extensions, a wireless phone or even a computer supporting voice communications. The call parking and paging system may also deliver the parked call to an alternative location or recipient, to the messaging system, to an attendant or to a call greeting system.
Patent CA-2261689-A1 (CA)
Title: Monophasic contraceptive method and kit comprising a combination of a progestin and estrogen
Inventor: GAST MICHAEL JAY
IPC: A61K31/58
Filed: 1997-07-23
Abstract: This invention provides a method of contraception which comprises administering to a female of child bearing age for a combination of a progestin at a daily dosage of 40-500 µg trimegestone, 250 µg - 4 mg dienogest, or 250 µg - 4 mg drospirenone, and an estrogen at a daily dosage equivalent in estrogenic activity to 10-20 µg ethinyl estradiol for 23-25 days beginning on day 1 of the menstrual cycle, and wherein the same dosage of the progestin and estrogen combination is administered in each of the 23-25 days.
Patent CA-2265934-A1 (CA)
Inventor: BARSHTER DENNIS WAYNE
IPC: C12M1/36
Filed: 1997-09-12
Abstract: An apparatus (20) and method is provided for removing contaminants from a gas (28), wherein the gas flows through a gas treatment chamber (22) having a biological treatment zone (26) and a chemical treatment zone (24). The amount of a chemical agent (30) that is introduced into the chemical treatment zone (24) is adjusted in response to a sensed condition or conditions.
Patent CA-2266145-A1 (CA)
Title: Ceramic substrate polishing method
Inventor: NATSUHARA MASUHIRO
IPC: B24B7/22
Filed: 1999-03-18
Abstract: A ductile rotating body containing abrasive grains is used, and the surface of a ceramic substrate is polished by the circumferential portion of rotating body. At this time, angle .theta. formed between the polishing direction Do of ceramic substrate and the rotating direction D1 of rotating body is set in the range from 10° to 80° for polishing.  Alternatively, the polishing process is divided into at least two steps, and the average grain size of abrasive grains is reduced stepwise for polishing. According to this method, the surface of a large-area and thin ceramic substrate can be polished without damages, and a ceramic surface having a smooth polished surface can be provided. This method is particularly suitable for polishing a ceramic substrate having a thickness of at most 2.0mm, and the resulting polished ceramic substrate is suitable for a substrate for a ceramic heater in a thermal fixation device for toner image.
Patent CA-2267649-A1 (CA)
Title: Machine for advancing a sheet metal strip in measured increments
Inventor: LIEFER KALIN
IPC: B65H20/18
Filed: 1999-03-31
Abstract: A machine for advancing a strip of sheet metal in measured increments includes a main frame and subframes supported on transverse ways on the main frame so that the subframes may be moved toward and away from each other to vary the spacing between them. The subframes lie along a path that accommodates the sheet metal strip, and at their forward ends have fixed gripping units which clamp down on the strip to prevent it from moving in the path. The subframes have tracks along which movable gripping units move to and fro. The movable gripping units also have the capacity to clamp down on the strip. Each subframe also carries an endless chain which is driven by a hydraulic motor on the subframe to move the movable gripping unit for the subframe along its track. Basically, the movable gripping units alternately grip the strip and advance it, so that while one gripping unit is propelling the strip forwardly, the other is returning to its initial position to thereafter grip the strip and propel it. In the intervals between successive advances, the fixed gripping units clamp down on the strip and the strip is cut at a shear to provide panels of equal length. A hydraulic cylinder exerts a constant force on the chain that drives each movable gripping unit to maintain that chain taut. Each of the fixed and movable gripping units has a pair of pads along which it actually clamps against the metal strip. One pad of the pair lies in a pocket form which it is easily extracted to make room for removal of the other pad
Patent CA-2269073-A1 (CA)
Inventor: PETERKEN WILLIAM H
IPC: F41A17/44
Filed: 1997-11-14
Abstract: A cylindrical insert (42) having a recess (50) in one end and a notch (46) disposed between either end of the cylindrical insert (42). The cylindrical insert is placed within a bolt carrier (122) of a rifle or firearm. The recess (50) is positioned to receiving the firing pin (132), preventing the cylindrical insert (42) from contacting it. The notch (46) is sized and positioned to receive the hammer (130), preventing it from impacting the firing pin (132) when the trigger (126) is pulled releasing the hammer (130).  The insert (46), being placed within the bolt carrier (122), is not readily visible and effectively disables the rifle from being fired. This prevents the possibility of any accidental discharge or unauthorized use. A locking device may be attached to the insert (42) preventing its unauthorized removal. The present invention is applicable to many different rifles or firearms and may also be used to safely dry-fire a firearm without damaging the firing pin, and requiring only limited movement of the bolt carrier to reset the hammer for dry-firing.
Patent CA-2269514-A1 (CA)
Title: Collapsible and relatively rotatable drive shaft
Inventor: GRUBISH DAVID JOHN
IPC: F16D3/32
Filed: 1999-04-22
Abstract: A drive shaft assembly for a portable lathe includes a first hollow shaft and a second shaft axially aligned with and telescopingly received in the first shaft, for permitting an effective length of the drive shaft to be altered within a limited range. The first and second shafts are also rotatable relative to each other. Opposite ends of the first and second shafts have uncovered joints including mounting flanges attached thereto, and a locking device is provided to lock both first and second shafts relative to each other after they have been adjusted to a desired axial and rotational orientation.
Patent CA-2271821-A1 (CA)
Inventor: KARR LAURA L
IPC: C07C275/54
Filed: 1997-10-17
Abstract: Compounds of formula (I) wherein R1 and R2 are H, methyl, or ethyl, have unexpected activity against cockroaches, ants, fleas, and termites. Compounds wherein at least one of R1 and R2 is methyl or ethyl are novel.
Patent CA-2273146-A1 (CA)
Title: Dissolved solids control in pulp production
Inventor: PROUGH ROBERT J
IPC: D21C3/02
Filed: 1994-02-25
Abstract: Kraft pulp of increased strength and bleachability may be produced with deceased consumption of effective alkali, and at a lower H factor, by keeping the dissolved organic material (DOM) concentration low substantially through the entire kraft cook, including by extracting high DOM liquid from at least one part of a continuous digester and replacing it with much lower level DOM liquid. Existing pulp mills having two-vessel hydraulic, one-vessel hydraulic, or other systems may be retrofit to provide for extractions and additions of low DOM dilution liquor (including substantially DOM-free white liquor). Also, commercial size batch digesters (8 tons per day of pulp or more) can be operated with low DOM liquor to produce increased strength pulp. Using dilution with low DOM liquor also results in reduced H factor and effective alkali consumption, and increased bleachability.
Patent CA-2273970-A1 (CA)
Title: Method for forming a radio frequency responsive target and apparatus for verifying the authenticity of same
Inventor: HURLEY G WILLIAM
IPC: G01S13/76
Filed: 1997-12-02
Abstract: A method and apparatus for authenticating an object (10) which produces an analog radio frequency signature (36) in response to an interrogating signal (26). The response signal is converted to a code world and is compared to a plurality of valid code words to determine if the object is authentic. The radio frequency responsive targets have a pattern of thin dipoles (510a-510n) which produce a composite analog radio frequency in response to an interrogating signal.
Patent CA-2275288-A1 (CA)
Inventor: MASUDA HISATOSHI
IPC: A61K8/29
Filed: 1996-12-18
Abstract: Disclosed is a water-in-oil emulsion foundation wherein the aqueous internal phase comprises: a) from about 0.1 % to about 10 % by weight of the foundation, of a water soluble or dispersible polymer; b) from about 0.5 % to about 30 % by weight of the foundation, of a plasticizing solvent; and c) from about 1 % to about 30 % by weight of the foundation, of an ultra fine titanium dioxide-water dispersion. The ultra fine titanium dioxide-water dispersion comprises from about 0.2 % to about 18 % by weight of the foundation of an ultra fine titanium dioxide, and from about 0.002 % to about 7.2 % by weight of the foundation of a nonionic surfactant.
Patent CA-2276174-A1 (CA)
Title: Procede et systeme de surveillance et commande d'un objet, de preference un vehicule a proteger
Inventor: SZEKELY LASZLO
IPC: B60R25/04
Filed: 1997-10-28
Abstract: L'invention concerne un procédé de commande à distance d'un objet à protéger qui consiste à laisser l'objet à protéger, à introduire au moins un dysfonctionnement de l'objet en déconnectant les connexions opérationnelles entre les différentes parties du réseau électrique, électronique ou électromécanique de l'objet par un organe inséré dans ce réseau de manière camouflée, et de préférence à actionner à distance cet organe; à supprimer cet état sélectionné lors du retour vers l'objet; à insérer un organe de commande dans le chemin de suppression dudit organe en introduisant au moins un dysfonctionnement de l'objet à protéger, ledit organe de commande étant activable et désactivable par un code secret d'utilisateur unique; à actionner ledit organe de commande avant de s'éloigner dudit objet à protéger et une fois que l'on a introduit au moins un dysfonctionnement de l'objet; à désactiver ledit organe de commande au retour et avant d'accéder à l'objet protégé, ou avant de supprimer ledit état sélectionné pour ledit organe permettant d'introduire au moins un dysfonctionnement de l'objet; à signaler localement et/ou à distance à l'utilisateur toute tentative non autorisée de désactivation dudit organe de commande. L'appareil antivol comprend un organe activé ou désactivé par l'utilisateur permettant de provoquer un dysfonctionnement d'un objet protégé, ledit organe étant inséré de préférence dans le système électrique dudit objet et comprenant un organe d'autorisation/interdiction en communication avec l'organe à distance permettant d'activer et de désactiver ledit organe permettant de provoquer un dysfonctionnement, et transmettant un code secret d'utilisateur unique au moment de la mise en route de l'organe d'autorisation/interdiction. Ledit appareil comprend en outre un organe permettant de mettre en route ou d'interrompre la connexion entre ledit organe permettant de provoquer un dysfonctionnement et l'organe d'autorisation/interdiction. L'organe de mise en route ou d'interruption est placé de manière camouflée dans ou sur l'objet protégé et en communication avec la commande à distance maintenue par l'utilisateur et qui est opérationnelle grâce à au moins un code secret d'utilisateur modifiable, ledit organe de mise en route ou d'interruption transmet un signal à l'utilisateur chaque fois que l'organe permettant de provoquer un dysfonctionnement reçoit un signal de désactivation. L'invention s'applique en général dans le domaine du service de sécurité, plus particulièrement pour la protection de bâtiments, de maisons de campagne et pour suivre la piste de véhicules volés dotés ou non d'un système d'alarme.
Patent CA-2277839-A1 (CA)
Title: (-)e-2-(3,4-dichlorocinnamyl)-1-cyclopropylmethyl-piperidine and its antidiarrhoeal use
Inventor: THEODOROU VASSILIA
IPC: C07D211/08
Filed: 1998-03-04
Abstract: (-)E-2-(3,4-dichlorocinnamyl) -1-cyclopropylmethyl-piperidine of formula (I) and its addition salts with pharmaceutically acceptable acids; their use as antidiarrhoeals in mammals; pharmaceutical compositions intended for treatment of diarrhoeas.
Patent CA-2281742-A1 (CA)
Inventor: SANBORN WARREN G
IPC: A61B5/08
Filed: 1998-02-24
Abstract: The invention is directed to a ventilation control system (20) for controlling the ventilation of a patient (1). The ventilation control system (20) utilizes a user-friendly user interface (20) for the display of patient data and ventilator status. The user interface (20) includes a graphic representation of a breath cycle that displays the breath cycle currently being ventilated, and is also responsive to changes in ventilation settings to assist the user in evaluating the effect of those changes on the ventilator strategy before the changes are implemented.
Patent CA-2285825-A1 (CA)
Title: A nitrogen oxide storage catalyst
Inventor: DOMESLE RAINER
IPC: B01J23/63
Filed: 1999-10-12
Abstract: The invention relates to a nitrogen oxide storage catalyst which contains at least one catalyst material and at least one nitrogen oxide storage component from the group of alkali and alkaline earth metals. The nitrogen oxide storage catalyst is characterised in that the nitrogen oxide storage component, after completing catalyst preparation, is present as finely divided barium sulfate, strontium sulfate or as a mixture or mixed crystals of the two sulfates or as their complete or incomplete decomposition product with an average particle size of less than 1 m. Barium sulfate and/or strontium sulfate act as feed materials for the active storage component barium oxide in the storage catalyst according to the invention. As a result of the reductive exhaust gas compositions occurring under normal driving conditions barium sulfate and strontium sulfate decompose to compounds which are able to store nitrogen oxides. This more or less compensates for the loss of active storage components which occurs due to ageing. There is also the possibility of decomposing barium sulfate and/or strontium sulfate during production by means of reductive calcination in order to obtain a high initial loading of the catalyst with storage compounds. In this case the sulfates mentioned are used as auxiliary agents in order to introduce the highest possible concentrations of storage compounds into the storage catalyst.
Patent CA-2286654-A1 (CA)
Inventor: SERANO KATHLEEN A
IPC: E04D13/076
Filed: 1998-04-09
Abstract: A gutter protector (10) for preventing leaves and other debris from entering into a standard gutter (5) that fits independently into the gutter (5) without fasteners such as nails or screws or any attachment to the roof, fascia, or any other part of a building. The gutter protector (10) includes an inner wall (3) which fits against the rear wall (11) of the gutter (5) while seated upon the bottom wall (7) of the gutter (5) and a curved section (1) that allows water to flow over the flat section (9) of the gutter protector (10) through a uniform space (A) between the gutter protector (10) and the gutter (5) created by a clip (13) in the gutter protector (10) that attaches to the gutter (5).  The uniform space (A) does not allow leaves or other debris larger than the uniform space (A) to enter the gutter (5) but maintains a space (A) for a constant flow of water into the gutter (5).
Patent CA-2286700-A1 (CA)
Title: Method for regulating membrane moisture of a polymer electrolyte fuel cell, and a polymer electrolyte fuel cell
Inventor: KOSCHANY ARTHUR
IPC: H01M8/04007
Filed: 1997-04-10
Abstract: In a polymer electrolyte fuel cell the membrane moisture is regulated such that a measure of the moisture of the membrane (4) is ascertained electronically without utilization of an auxiliary electrode and that setting of the optimum membrane moisture is regulated as a function of the membrane moisture ascertained.
Patent CA-2289054-A1 (CA)
Inventor: PHILLIPS RICHARD STANLEY
IPC: B01F3/04
Filed: 1999-11-08
Abstract: A method for treating a liquid comprising the steps of introducing a gas to treat the liquid into a sealed vessel; increasing the pressure in the vessel to promote the dissolution of the gas into the liquid; and either releasing the pressure after the pressure in the vessel reaches a predetermined level or monitoring the treatment of the liquid and releasing the pressure after the treatment of the liquid in the vessel reaches a predetermined level. An apparatus for use with this method is also disclosed.
Patent CA-2289702-A1 (CA)
Title: High efficiency encapsulation of charged therapeutic agents in lipid vesicles
Inventor: CULLIS PIETER
IPC: A61K48/00
Filed: 1998-05-14
Abstract: Methods for the preparation of a lipid-nucleic acid composition are provided. According to the methods, a mixture of lipids containing a protonatable or deprotonatable lipid, for example an amino lipid and a lipid such as a PEG- or polyamide oligomer-modified lipid is combined with a buffered aqueous solution of a charged therapeutic agent, for example polyanionic nucleic acids, to produce particles in which the therapeutic agent is encapsulated in a lipid vesicle. Surface charges on the lipid particles are at least partially neutralized to provide surface-neutralized lipid-encapsulated compositions of the therapeutic agents.  The method permits the preparation of compositions with high ratios of therapeutic agent to lipid and with encapsula-tion efficiencies in excess of 50 %.