baber/WOPTO huggingface dataset:
Patent CA-2200506-A1 (CA)
Title: Dual-mode network access point
Inventor: GERSZBERG IRWIN
IPC: H04M1/72502
Filed: 1997-03-20
Abstract: A dual-mode network access point device for enabling a user to select between at least two telecommunication service providers using the user's existing telecommunications wiring. The device includes a wireless interface circuit adapted for coupling one or more antennas which are used for transmitting signals to and receiving signals from a wireless service provider and a switching circuit for selectively coupling a first telecommunication device between a wireline service provider and the wireless interface circuit is provided in the device. The device further includes a controller circuit which enables the switching circuit automatically in response to an incoming call and on command to select either the wireline service provider or the wireless interface circuit.
Patent CA-2201763-A1 (CA)
Title: Rowing apparatus
Inventor: ROBBINS GERALD M
IPC: B63H16/02
Filed: 1997-04-03
Abstract: A rowing apparatus having support tubing that extends over the gunnels of the canoe, and to which the oars are mounted, is angled upwardly to provide added clearance in choppy waters. The elongated track support to which the seat and the support tubing are mounted is provided with repositionable mounting brackets that enable the height from the floor of the elongated support member to be adjusted within a range of several inches to maintain a suitable center of gravity for a wide range of weather conditions. In this manner the rower is capable of maximizing the transfer of power through the rowing apparatus, and still maintain the stability of the canoe. Since wilderness rowing is a physically demanding activity, the rowing apparatus is easily adaptable for use as a training device, permitting the user of the apparatus to use the same device in their home for exercise and training purposes that they can also use in their canoe on an actual wilderness rowing expedition.
Patent CA-2207570-A1 (CA)
Title: Intraoperative myocardial device and stimulation procedure
Inventor: MURPHY-CHUTORIAN DOUGLAS
IPC: A61B18/24
Filed: 1997-06-11
Abstract: A method for stimulating revascularization of myocardium tissue in the ventricular wall of a human heart is disclosed.  The method includes the steps of moving the distal end of an optical fiber element forwardly through the epicardium of the heart and into the myocardium and emitting relatively low power bursts of laser energy from the distal end to form stimulus injury zones that promote capillary growth and tissue revascularization.  Each penetration of the optical fiber element may produce multiple stimulus zones spaced radially from or in line with the axis of the optical fiber element.  Apparatus for moving the optical fiber element and controlling the laser emissions in a predetermined manner is also disclosed.
Patent CA-2209207-A1 (CA)
Inventor: FUNAMIZU TAKASHI
IPC: G01J5/08
Filed: 1996-10-31
Abstract: A method of measuring the temperature of a high-temperature melt, comprising the steps of inserting the distal end of an optical fiber into a high-temperature melt, and converting optical signals transmitted through the optical fiber to the temperature, wherein the devitrified end of the optical fiber is cut off or the disturbance of a measurement peak due to the combustion of the fiber is eliminated. The temperature of melt is controlled near the lower limit temperature at which fluidity of the slag can be maintained. Further, the temperature measurement can be effected by a temperature measurement apparatus including a fiber insertion/pull-out mechanism and a fiber cutter.
Patent CA-2209529-A1 (CA)
Title: Laminated clothing, as well as method and blank for manufacturing the same
Inventor: RYDIN BJOERN
IPC: D21F7/08
Filed: 1996-11-26
Abstract: The invention relates to a laminated clothing for a papermaking or cellulose manufacturing machine, as well as a method and a blank for manufacturing thereof. The clothing comprises two laminated layers (O, I), each having an inclined direction-defined thread system, the thread systems being inclined relative to the machine direction of the clothing and relative to each other. The two layers (O, I) constitute an upper and an inner part, respectively, of an endless band (40), which is so flattened that two edge folds (48, 50) are formed transversely of the machine direction, and which is then doubled with the edge folds (48, 50) coupled together. As a result, the band comprises a direction-defined thread system which is inclined relative to the machine direction and which, owing to the flattening and doubling of the band, forms the thread systems, inclined relative to each other, of the first and the second layer (O, I).
Patent CA-2213025-A1 (CA)
Title: Process of producing methanol from natural gas
Inventor: GOEHNA HERMANN
IPC: C07C31/04
Filed: 1997-08-25
Abstract: Natural gas is converted with steam and oxygen in an autothermally operated reactor, and from the reactor a raw synthesis gas with a temperature in the range from 800 to 1200°C is withdrawn. To the cooled, raw synthesis gas a gas rich in H2 is admixed. The synthesis gas with an increased H2 content is converted in a methanol synthesis reactor on a copper catalyst at a pressure in the range from 10 to 150 bar and temperatures from 180 to 350°C. From the synthesis reactor a gas mixture containing methanol vapor is withdrawn, methanol is condensed out, and a cooled residual gas is separated. The residual gas is divided into a first partial stream (recycle gas) and a second partial stream (purge gas).      The recycle gas is admixed to the synthesis gas before the methanol synthesis reactor. The purge gas consists of 30 to 80 vol-% H2, 7 to 35 vol-% CO2 and 3 to 25 vol-% CO. The hourly quantity of purge gas is 8 to 25 % (calculated dry) of the hourly quantity of raw synthesis gas. The purge gas is charged into a separating means, where the gas rich in H2 is recovered, which is admixed to the raw synthesis gas. The hourly quantity of carbon dioxide supplied to the separating means in the purge gas is 10 to 50 % of the hourly quantity of CO2 in the raw synthesis gas.
Patent CA-2214666-A1 (CA)
Title: Method and apparatus for forming solid phase plug in pipelines
Inventor: WALTER BRONISLAV
IPC: F16L55/11
Filed: 1997-09-04
Abstract: Method to form solid phase plug in pipeline.            The method includes a combination of specially designed pig and water handling inside of a pipe.  The outside sleeve with labyrinth of pathways to ensure equally distributed flow of cooling liquid or gas over required surface of a line pipe. The applications of a special pig apparatus of the invention drastically shorten time and also quantity of cooling liquid to form solid phase plug.            Field of Invention The present invention relates to the apparatus and method to form solid phase plug in combination with fluid media.  The pipeline operator may choose this method to isolate segment of pipeline by forming two solid phase plugs of ice spaced apart.            Background of the Invention.            The technique of forming solid phase plugs for isolation purposes of pipelines using liquid nitrogen as cooling media is known and is described in U.S. patent 4,220,012 dated September 2, 1980.  This method employs a chamber placed over the line pipe surface.  The chamber is then filled with liquid nitrogen, agitated to induce boiling, increasing heat flow from the line pipe to the evaporating nitrogen.  This method uses pipeline fluid or water to form solid phase plug.  The time to form solid phase plug using this method is long because plug occupies the full section of line pipe.  The time required to freeze the plug is the major issue as it will shorten the time the pipeline is shutdown.   In effort to reduce the time to form solid phase plug we bring following solution to this problem.
Patent CA-2215543-A1 (CA)
Title: Cashless card revalue system
Inventor: LEE-WAI-YIN MICHAEL
IPC: G07F7/02
Filed: 1997-09-16
Abstract: This invention concerns a cashcard system for purchasing laundry services wherein the user is issued with a cashcard and a personal identification number. Each of the laundry facilities is provided with a terminal having means for verifying the user, means for verifying the card, means for updating the card with an amount requested by the user, means for saving the card identification and the amount revalued to the card and means for storing and forwarding at a later time the amounts revalued to the cards for credit verification by a central computer remote to the terminal. In addition, the terminal in verifying the card compares the card to a previously rejected cards before updating the card with a new amount requested.
Patent CA-2215872-A1 (CA)
Title: Cold application fly ash aqueous colloidal dispersion driveway sealers
Inventor: YAP MICHAEL L
IPC: C08L95/00
Filed: 1997-10-02
Abstract: Aqueous   colloidal   dispersion   driveway   sealer compositions especially adapted for cold application are made available through the controlled utilization of fly ash.
Patent CA-2218068-A1 (CA)
Title: Technique d'asservissement d'une diode laser a grande surface, disposee dans une cavite externe, a une cavite optique passive
Inventor: DIXON GEORGE J
IPC: H01S5/10
Filed: 1996-04-11
Abstract: Cette diode laser semi-conductrice à grande surface, placée dans un cavité laser étendue, est asservie par couplage optique passif à un résonateur passif, ce qui permet d'augmenter de façon stable la fréquence et l'amplitude d'un champ dans la cavité de ce résonateur passif. Cette diode laser à grande surface peut être à grande longeur ou bien un réseau piloté en phase ou un amplificateur à raccord progressif. La cavité laser étendue peut-être linéaire ou annulaire, et présenter une configuration à simple ou double passage. On obtient simultanément un filtrage spatial de faisceau et un asservissement passif. La puissance concentrée dans le résonateur passif sert à produire un deuxième harmonique, à additionner des fréquences, etc., avec une grande efficacité et de faibles niveaux de bruit dus à la stabilité de fréquence et d'amplitude régnant dans ce résonateur passif.
Patent CA-2218540-A1 (CA)
Title: Removable retainer arrangements for flexible, vehicle tops
Inventor: HUOTARI KEIJO J
IPC: B60J7/10
Filed: 1996-05-08
Abstract: Retainer arrangements for removably attaching flexible tops (2) to sport utility, convertible, and other vehicles. The arrangements include a flange (4, 4', 5, 5', 30, 30', 30") which is attached to the flexible top and a U-shaped channel (6, 6', 13, 13', 40, 40', 40") which is formed on the vehicle body. The flange is received in the U-shaped channel and a mating protuberance (18, 18', 15, 15', 54) and recess (20, 20', 19, 19', 56) interengage to removably lock the flange in the channel.
Patent CA-2219687-A1 (CA)
Title: Stabilizer combination for the rotomolding process
Inventor: KROEHNKE CHRISTOPH
IPC: C08K5/527
Filed: 1997-10-28
Abstract: A description is given of a process for the production of polyolefin hollow articles, which comprises charging the polyolefin with a stabilizer combination, comprising (A) at least one compound from the group of the organic phosphites or phosphonites, and (B) at least one compound from the group of the 3-arylbenzofuranones, filling this mixture into a mold, heating this mold in an oven to above 280°C, such that the stabilised polyolefin fuses, rotating the mold around at least 2 axes, the plastic spreading to the walls, and cooling the mold while still rotating, opening it and taking the resultant hollow article out.
Patent CA-2221008-A1 (CA)
Inventor: MUEHLEBACH ANDREAS
IPC: C08G61/06
Filed: 1997-11-13
Abstract: A composition, comprising (a) a compound of formula I           (R1R2R3P)xLyMe2+Z1-Z2-           , wherein R1, R2 and R3 are each independently of one another H, C1-C20alkyl, C1-C20-alkoxy; C4-C12cycloalkyl or cycloalkoxy which is unsubstituted or substituted by C1-C6-alkyl, C1-C6haloalkyl or C1-C6alkoxy, or C6-C16aryl or C6-C16aryloxy which is unsubstituted or substituted by C1-C6alkyl, C1-C6haloalkyl or C1-C6alkoxy, or C7-C16-aralkyl or C7-C16aralkyloxy which is unsubstituted or substituted by C1-C6alkyl, C1-C6-haloalkyl or C1-C6alkoxy; R2 and R3 together are tetra- or pentamethylene or tetra- or pentamethylenedioxyl which is unsubstituted or substituted by C1-C6alkyl, C1-C6haloalkyl or C1-C6alkoxy, or tetra- or pentamethylene or tetra- or pentamethylenedioxyl which is unsubstituted or substituted by C1-C6alkyl, C1-C6haloalkyl or C1-C6alkoxy and which is condensed with one or two 1,2-phenylene radicals, or tetramethylenedioxyl which is unsubstituted or substituted by C1-C6alkyl, C1-C6haloalkyl or C1-C6alkoxy and which is condensed in 1,2- and 3,4-position with 1,2-phenylene, and R1 has the meaning cited above; L is a neutral ligand, Me is Ru or Os, Z1- and Z2- are each a singly charged anion, or Z1-and Z2- together are a doubly charged anion, x is a number from 1 to 3, and y is a number from 0 to 3, wherein 2 ~ x+y ~4; and b)  is a compound of formula II                                  R4-C~/C-H            , wherein R4 is hydrogen or a monovalent organic radical of up to 30 carbon atoms which may contain one or several silicium, phosphorus, nitrogen, oxygen, sulfur or halogen atoms, is suitable as storage-stable two-component catalyst for the ring-opening metathesis polymerisation of cyclopentadiene adducts and makes it possible to polymerise dicyclopentadiene and other cyclopentadiene adducts within a short time and with high enthalpy of reaction and only little weight loss.
Patent CA-2221702-A1 (CA)
Title: Multimedia document conferencing system
Inventor: CRADDOCK A JULIAN
IPC: H04L12/18
Filed: 1997-03-27
Abstract: A multimedia documents conferencing system (10), having a data communications network (12) coupled to which are a plurality of client stations (14), a meeting server (16) and a presentation server (18).  The system is embodied by a client-server based collaborative application that allows users to share multimedia documents on any of PC, MAC  or UNIX based hardware platforms. A "meet me" approach may be scaled to support a practically unlimited number of simultaneous users for sharing and accessing different multimedia documents at the same time. The client-server architecture allows centralized billing, secure document storage and secure document transmission, and centralized administration. Multiple clients may interface with the server or servers via a telecommunications network (13) and the data communications network which preferably is the Internet, whereby users at geographically dispersed locations are able to participate in a meeting session.
Patent CA-2221814-A1 (CA)
Inventor: KRAUTER HEINRICH
IPC: B41M5/40
Filed: 1997-03-24
Abstract: Ce ruban de transfert thermique comprend un substrat usuel, une couche d'encre de transfert thermique sur une face du support et une couche de séparation située entre le substrat et la couche d'encre de transfert thermique. La couche de séparation est encirée et contient des cires ayant un point de fusion entre 70 et 110 ·C environ, ainsi qu'un plastifiant polymère de la cire dont la température de transition vitreuse Tg est comprise entre -30 et +70 ·C. La couche d'encre de transfert thermique contient au moins 20 % en poids d'une résine naturelle, d'une résine naturelle modifiée et/ou d'une résine synthétique. Ce ruban de transfert thermique permet d'obtenir des impressions particulièrement résistantes aux rayures et aux solvants.
Patent CA-2223969-A1 (CA)
Title: Genetically altered feline immunodeficiency viruses and their use as an effective vaccine against feline immunodeficiency virus infection
Inventor: HUANG CHENGLIN
IPC: A61K48/00
Filed: 1996-06-03
Abstract: The present invention pertains to the prevention or lessening of disease in cats caused by Feline Immunodeficiency Virus (FIV). Prevention or lessening of disease understood to mean the amelioration of any sy mptoms, including immune system disruptions, that result from FIV infection. The invention provides for a plasmid which encodes th e FIV genome where said genome has had a portion of the gag gene, specifically the p10 (nucleocapsid) coding region, or a portion thereof, deleted. This deletion prevents the production of functional or whole p10 protein which, in turn, prevents the packaging of RNA in to virions produced from transfection of this plasmid into an appropriate host cell, resulting in virions which do not contain RNA. Su ch virions will be described as "empty" virions. The invention also encompasses host cells transformed with the plasmid which produce the empty virions, and the empty virions themselve. In another embodiment the invention encompasses vaccines that comprise one or more empty virions described above with a pharmaceutically acceptable carrier or diluent and a pharmaceutically acceptable adjuvant. In yet another aspect, the invention provides methods for preventing or lessening disease caused by FIV, which is carried out by administering to a feline in need of such treatment the vaccines described above.
Patent CA-2227734-A1 (CA)
Title: Waiting-call selection based on anticipated wait times
Inventor: KOHLER JOYLEE E
IPC: H04M3/523
Filed: 1998-01-22
Abstract: The maximum wait time for callers in a call center (FIG. 10) is lowered by selecting, for an agent (25) who has just become available to handle a call, a highest-priority waiting call that would most likely wait the longest if it were not selected at this time. Anticipated wait times are computed for the calls at the heads of the non-empty highest-priority call queues that correspond to the agent's skills or splits (202-210). The anticipated wait time of a call is computed as the call's present (elapsed) wait time plus the average rate of advance of calls in the call's queue (210). The call with the longest anticipated wait time is then selected first and is assigned to the available agent for handling (212-216). The process is repeated each time that any agent becomes available.
Patent CA-2228220-A1 (CA)
Inventor: MCLAREN GORDON LEONARD
IPC: B23B31/173
Filed: 1998-01-28
Abstract: A hydraulic chuck for a drill string has a hydraulic actuator to operate the jaws. The actuator remains stationery while the spindle is rotated and a pair of skirts attached to the actuator cover the bearing assemblies. The jaws are supported in slots in the spindle and are part cylindrical to reduce stress in the spindle. The chuck is secured to a drive unit by bolts received in open slots in an attachment flange to facilitate attachment of the chuck alter routine maintenance.
Patent CA-2228346-A1 (CA)
Title: Guidewire having a distal tip that can change its shape within a vessel
Inventor: LORENZO JUAN ANTONIO
IPC: A61M25/01
Filed: 1998-01-29
Abstract: In accordance with the present invention there is provided a guidewire for navigating through body vessels. The guidewire has a proximal end, a distal end and a longitudinal axis extending therebetween. The guidewire has an outer tube with proximal and distal ends. The outer tube is made from a material exhibiting substantially no shape memory retention. The guidewire includes a flexible distal tip attached to the distal end of the outer tube and extending distally thereto. The guidewire further includes a core wire having distal and proximal ends. The distal end of the core wire is made from a material exhibiting shape memory retention. The core wire can slide longitudinally within the tube. The core wire slides between a retracted position, where the distal end of the core wire is proximal to the flexible distal tip and takes the shape of the outer tube, and an extended position, wherein the distal end of the core wire is distal to the distal end of the outer tube so that it can return to a preformed shape.
Patent CA-2233929-A1 (CA)
Title: Image communications
Inventor: TRACHTMAN EYAL
IPC: H04W92/08
Filed: 1996-11-04
Abstract: A store-and-forward image communications system for transmitting an image signal from a first terminal (24) to a second terminal (10) in one of a plurality of transmission modes which comprises: a transmission path (12, 14, 16, 18, 20) between the first and second terminals (10, 24); a first image signal interface (20) in said transmission path at which said image signal is received; a message store (116) connected to store and subsequently recall signals received at the first interface (20); a data store (302) containing at least one record (320) comprising preference data relating to preferred said transmission modes for at least one of said first and second terminals (10, 24); a transmission controller (118) selecting from said transmission control modes in accordance with said preference data; and a data updater (304) arranged to update the or each said record (320).
Patent CA-2235735-A1 (CA)
Title: Process for upgrading heavy oil using lime
Inventor: BRONS GLEN BARRY
IPC: C10G45/02
Filed: 1998-05-25
Abstract: The present invention relates to a continuous in-situ process for reducing the viscosity, corrosivity and density of heavy oils comprising the steps of (a) contacting a heavy oil with an anhydrous alkaline earth, Group IIA  metal hydroxide and low pressure hydrogen at a temperature of about 380°C to about 450°C for a time sufficient to form the corresponding alkaline earth metal sulfide, recovering the reduced sulfur feed and regenerating the alkaline metal hydroxide for recycle to treat additional feed. Beneficially, the process removes heteroatoms (sulfur and nitrogen).
Patent CA-2236029-A1 (CA)
Title: Data compression
Inventor: COCKSHOTT PAUL WILLIAM
IPC: H04N19/00
Filed: 1996-10-22
Abstract: A   method   of compressing an image frame composed of an array of pixels in the form of digital electrical signals, the method comprising the steps of:(a) prodding a ,reference image as a first approximation to the original image to be compressed; (b) dividing the original image into patches of one or more sizes; (c) for each patch, determining a compressed encoding of the data contained therein where the compressed encoding can be uncompressed to provide an approximation to the patch; (d) selecting that one of the compressed encodings which, when uncompressed and added to the reference image, gives the biggest improvement therein relative to the original image; (e) adding the selected compressed encoding in uncompressed form, to the the reference image and in compressed from to a compressed representation of the original image; and (f) recursively repeating step (d) for the remaining comprossed encoding until either a desired quality level of the reference image or a maximum data size of the compressed representation is achieved.
Patent CA-2236593-A1 (CA)
Inventor: MITCHNICK MARK
IPC: C09C3/12
Filed: 1996-10-08
Abstract: A process for making metal oxide hydrophobic by coating the metal oxide with a silicone polymer is disclosed. The hydrophobic metal oxide is prepared by contacting the metal oxide with a reactive silicone compound and then in a subsequent step the coated metal oxide is heated to 40 to 100 °C for between 1 and 10 hours. The resulting metal oxide is hydrophobic, non-reactive, not affected by water and can be applied to the skin for protection from ultraviolet light of the sun.