baber/WOPTO huggingface dataset:
Patent CA-2077514-C (CA)
Title: Arrangement and method for treatment of webs using nozzles with negative pressure
Inventor: HEIKKILA PERTTI
IPC: F26B13/20
Filed: 1992-09-03
Granted: 1998-12-01
Abstract: The invention relates to an arrangement of nozzles with negative pressure intended for the treatment of webs.  A nozzle directs a drying and supporting gas flow at the web and which has a box construction, and a nozzle space formed at one side of the nozzle.  The nozzle space is provided with a nozzle slot defined by nozzle walls.  One of the walls operates as a curved guide face which is fitted to turn the gas flow passed out of the nozzle slot, based on the Coanda effect, so as to make it parallel to the carrier face formed on the top face of the nozzle.  At least one second nozzle slot is provided at a distance before said first nozzle slot, in the running direction of the web.  A flow guiding fitted in connection with the second nozzle slot is arranged so that the flow has a substantially large velocity component perpendicular to the direction of running of the web.  The velocity component parallel to the plane of running of the web of the flow passed out of the second nozzle slot is larger than zero.
Patent CA-2078195-C (CA)
Title: Arrangement for detecting fraudulently identified mobile stations in a cellular mobile telecommunications network
IPC: H04W12/00
Filed: 1992-09-14
Granted: 1999-03-09
Abstract: This invention relates to apparatus and methods for providing cellular mobile telecommunication service in accordance with the requirements of the Global Systems for Mobile Communications (GSM) standard. A modular switching system is provided which performs the functions of the mobile switching center plus those of a home location register, authentication center, visitor location register, and equipment identity register. The latter functions are advantageously spread among the modules of the switching system, thus avoiding the getting started cost of expensive dedicated data bases. A wireless global switching module advantageously switches mobile communications control messages among the modules of the system and between the modules and the base station systems, and terminates signaling links between the mobile switching center and the base station systems.
Patent CA-2079276-C (CA)
Title: Polishing process for optical connector assembly with optical fiber and polishing apparatus
Inventor: XU JIE
IPC: G02B6/38
Filed: 1992-09-28
Granted: 1999-09-21
Abstract: Disclosed is a polishing process and a polishing apparatus for polishing an end face of a connector assembly with at least one optical fiber. The process comprising the steps of attaching at least one optical fiber with an optical connector made of different material from that of the optical fiber so that the optical fiber exposes from the end face of the optical connector and polishing the end face of the connector assembly with the optical fiber while pressing the same against a flat surface of a rotating abrasive wheel containing fixed abrasive grains with a constant load.
Patent CA-2083588-C (CA)
Title: Solid-acid alkylation catalyst compositions and alkylation processes using the same
Inventor: ANGSTADT HOWARD P
IPC: C07C9/16
Filed: 1992-11-23
Granted: 2002-09-03
Abstract: New catalyst compositions comprise sulfated and calcined mixtures of (1) a support comprising an oxide or hydroxide of a Group IV-A element, (2) an oxide or hydroxide of a Group VI, VII or VIII metal, (3) an oxide or hydroxide of a Group I-B, II-B, III-A, III-B, IV-B, V-A or VI-A metal and (4) a metal of the Lanthanide Series of the Periodic Table. A process for alkylation of acyclic saturated compounds with acyclic unsaturated compounds utilizing such catalyst compositions.
Patent CA-2084360-C (CA)
Title: Water-soluble conducting polymer and method for production thereof
Inventor: ICHIKAWA REIKO
IPC: C08G61/10
Filed: 1992-12-02
Granted: 2000-10-03
Abstract: Water-soluble conducting polymers having a chemical structure represented by, for example, the formula (I)   wherein R1 and R2 independently represent H, a C1 to C20 alkyl or alkoxy group, amino group, trihalomethyl group or phenyl group, X represents S, O, Se, Te or NR3, R3 represents H, a C1 to C6 alkyl group or an aryl group, M represents a cation such as H+, an alkali metal ion or quaternary ammonium, and m is 0.2 to 2 and a method for the production thereof by the reaction of a sulfonating agent on a derivative of, for example, isothianaphthene or isobenzofuran.
Patent CA-2085180-C (CA)
Inventor: COE CHARLES GARDNER
IPC: B01J20/18
Filed: 1992-12-11
Granted: 1997-10-21
Abstract: The present invention is directed to a process for separating nitrogen from gas mixtures containing nitrogen and less strongly adsorbed components such as oxygen, hydrogen, argon or helium by use of an at least binary exchanged X-zeolite having lithium and calcium and/or strontium ions in ratio of preferably 5% to 50% calcium and/or strontium and 50% to 95% lithium.
Patent CA-2086401-C (CA)
Title: Method for manufacturing ultrathin inorganic membranes
Inventor: LIN YUE-SHENG
IPC: C01B13/02
Filed: 1992-12-29
Granted: 1997-01-28
Abstract: The present invention is a method for manufacturing ultrathin inorganic membranes comprising yttria-stabilized zirconia (YSZ) in a thickness of 0.5 µm which has been deposited onto a lanthanum-doped alumina surface layerof a porous alumina substrate having an average pore diameter of less than about50 nm. The inorganic membranes formed by the method provide oxygen flux rates superior to those known in the art and are suitable for numerous uses including processes for separating oxygen from oxygen-containing gaseous mixtures and in processes for partially oxidizing hydrocarbons to their corresponding oxidized products.
Patent CA-2092446-C (CA)
Title: Battery container
Inventor: KOVALESKI RICHARD A
IPC: H01M50/227
Filed: 1993-03-25
Granted: 1997-10-21
Abstract: A battery container for transportation and storage of wet-acid batteries including an inner liner for holding a battery, an outer liner wrapped around the inner liner and an enclosure wrapped around both liners. The inner liner absorbs liquids spilled from the battery while the outer liner and enclosure cooperate to absorb G-forces when the container is dropped, to protect the battery from shock.
Patent CA-2094590-C (CA)
Title: Process control of process for purification of linear paraffins
Inventor: DICKSON CHARLES THOMAS
IPC: C10G25/03
Filed: 1991-06-04
Granted: 1996-02-27
Abstract: A process for purifying linear paraffins in which a hydrocarbon stream containing linear paraffins contaminated with aro-matics, sulfur-, nitrogen-, and oxygen-containing compounds, and color bodies, but essentially free of olefins, is contacted with a solid adsorbent such as an NaX zeolite or zeolite MgY. After adsorption the adsorbent is desorbed with an alkyl-substituted aro-matic desorbent, such as toluene. The initial effluent from the adsorb cycle, which will contain a high concentration of residual desorbent, is recycled to a desorbent recovery system. The level of desorbent in the adsorber effluent is monitored on a real time basis until the desorbent level of the adsorber effluent declines from a plateau level, i.e. a 100 % plateau level, that correlates with the level of impurities particularly the aromatic impurities in the feed, which is an indication of aromatics breakthrough, thereby signaling the need to switch the adsorbent beds.
Patent CA-2094616-C (CA)
Title: Compact loudspeaker assembly
Inventor: MCATEER JEFFREY PHILLIP
IPC: H04M1/03
Filed: 1993-04-28
Granted: 1997-04-08
Abstract: A speakerphone comprises an upper housing member and a lower housing member that are joined together to enclose a loudspeaker, a microphone, and a printed wiring board having electronic components mounted thereon that cooperate in the operation of the speakerphone. The upper housing member includes a continuous sidewall that is molded into its underside and extends downwardly toward the printed wiring board. The sidewall surrounds a group of sound apertures that are also molded into the upper housing member. A loudspeaker is attached tothe underside of the upper housing member in such a manner that it completely covers the sound apertures. A sealed enclosure within the speakerphone is formedby creating a seal between the sidewalls and the printed wiring board. A compliant gasket is illustratively used to create the seal. As a result, the frequency response of the loudspeaker is improved, and acoustic coupling between the loudspeaker and the microphone is reduced. The frequency response of the loudspeaker is further improved by inserting acoustically absorbent material, and by extending a tuned port, into the sealed enclosure.
Patent CA-2096970-C (CA)
Title: Derive anilide
Inventor: SATO MASAKAZU
IPC: C07C317/44
Filed: 1991-11-21
Granted: 1998-07-14
Abstract: Dérivé anilide utile comme médicament pour le traitement de l'athérosclérose, représenté par la formule I suivante :   où X est un groupe alkyle ayant de 1 à 4 atomes de carbone ou un groupe alkoxy ayant 1 à 4 atomes de carbone, Y est un atome d'hydrogène ou un groupe alkoxy ayant de 1 à 4 atomes de carbone, Z est un groupe alkyle ayant de 1 à 4 atomes de carbone ou un groupe alkoxy ayant de 1 à 4 atomes de carbone, A est un groupe alkylène ayant de 1 à 4 atomes de carbone, R est un groupe alkyle ayant de 6 à 20 atomes de carbone, un groupe alkanoyle ayant de 2 à 20 atomes de carbone ou un groupe benzyle qui peut être substitué par un groupe alkyle ayant de 1 à 4 atomes de carbone, et n est égal à 0, 1 ou 2.
Patent CA-2097173-C (CA)
Inventor: CLAPP JOHN M
IPC: F16L37/12
Filed: 1993-05-27
Granted: 1996-06-11
Abstract: A spring clip retainer for securing a spool in a bore in, for example, a power tool wherein the spool forms a swivel connection for a source of pressure fluid to operate and or control the device.
Patent CA-2097620-C (CA)
Inventor: SHRIDHARANI KETAN G
IPC: D01F6/80
Filed: 1991-11-18
Granted: 2002-08-20
Abstract: Polyamides and polyamide fibers having a major proportion of hexamethyleneadipamide units and minor proportions of at least two other amide units, one of those other amide units being those of 2-methylpentamethylenediamine are disclosed.
Patent CA-2101405-C (CA)
Inventor: MILLS DANIEL MELVIN
IPC: B23Q39/04
Filed: 1993-07-27
Granted: 1999-06-01
Abstract: A machining system that has (i) plural machining cells spaced along a path, each having a single-point-tool and a rapid-positioning assembly for positioning the tool for multiple insertions into a workpiece as well as rapid tool exchange at speed rates that approach or exceed one G; (ii) table means for presenting a table surface in a selected plane for each cell; (iii) workpiece means for each table surface having keying surfaces for lockingly mating with a reference point of such table surface; (iv) transfer means for rapidly replacing a machined workpiece with an unmachined workpiece on a table surface, the just-machined workpiece being transferred to the next table surface while the substituted workpiece is undergoing machining; and (v) programmed electrical control means for activating the positioning assemblies and transfer means.         A method of machining, comprising: (a) locking a workpiece on a fixture having dimensional keys and releasably securing such fixture on an adjustable worktable in a predetermined first position facilitated by said keys; (b) adjacent each worktable, rapidly positioning a rotary single-point-tool for linear feed into a first of said workpiece surfaces while in a first position, said positioning being carried out at accelerations/decelerations of at least about one G; (c) feeding the rotating tool into the workpiece to carry out machining at speeds of 1-1300 inches per minute for drilling and boring, and at least about 5000 sfm for milling; (d) after withdrawing the tool from the workpiece, repositioning the single-point-tool for another linear feed into other workpiece surfaces or transfer to another tool.
Patent CA-2107576-C (CA)
Title: Ligne de communication a bond court pour un systeme de mesure de fond pendant le forage
Inventor: RORDEN LOUIS H
IPC: E21B47/18
Filed: 1992-04-17
Granted: 2001-04-10
Abstract: Liaison de communication par bonds courts comprenant un module de détection (125) placé en aval d'un moteur (100) dans un puits de forage. Ledit module (125) comprend des détecteurs qui contrôlent des paramètres d'exploitation, de direction et d'environnement au fond du trou et fournissent des signaux de données électriques indicatifs desdits paramètres. Des détecteurs peuvent également être placés dans le trépan (50) de manière à obtenir des paramètres relatifs au trépan et à communiquer des signaux de données correspondant aux paramètres détectés au module de détection (125). Ce dernier comprend un émetteur-récepteur doté d'une antenne annulaire (25), destiné à transmettre des signaux de données électromagnétiques issus du détecteur à un point situé au-dessus du moteur (100). Un module de commande (40) qui comprend également un émetteur-récepteur doté d'une antenne annulaire (27) est situé au-dessus du moteur (100) et reçoit les signaux électromagnétiques envoyés par le module de détection (125) et correspondant au paramètres détectés. De plus, le module de commande (40) est capable de transmettre des signaux de commande au module de détection (125) pour demander des données concernant les paramètres désirés. Ledit module de commande (40) est connecté à un module principal (10) qui orchestre tous les composants de mesure en cours de forage au fond du trou de forage. Le module principal (10) est relié à un contacteur de boue (35) de manière à transmettre les données désirées à la surface en vue du traitement en temps réel. Le module de détection (125) est stratégiquement placé dans un raccord amovible et interchangeable (200) au-dessous du moteur (100) ou, alternativement, à l'intérieur d'un arbre menant allongé (400) du moteur (100), tandis que l'antenne de détection (25) est située sur un épaulement extérieur du raccord (200) ou de l'arbre menant (400). Le module de détection (125) et un ensemble d'accumulateurs associé (55) sont situés dans un conteneur sous pression (99) qui fait partie d'une voie de retour de courant de l'antenne du détecteur (25) au circuit au sein du module de détection (125).
Patent CA-2109933-C (CA)
Inventor: GORLOV ALEXANDER M
IPC: F03B13/12
Filed: 1992-02-14
Granted: 2003-09-09
Abstract: A gravitational window shutter in a water gate for a system for harnessing power from current flow or tidal movement in a body of water is disclosed. The gate (102) is formed with a door (104) for closing the port (103) through which the water may flow. The door (104) has a window (120) in an upper portion thereof which is closed by a rotatable shutter (122). The shutter (122) opens before the door ( 104), allowing a flow of water through the window ( 120), which reduces the drug on the door ( 104). The door (104) is then able to open more rapidly. A gravitational closure (132) causes the shutter (122) and door (104), to close. The gravitational closure is formed by a counterweight on the shutter (122). An improved configuration of the chambers is also dis-closed. The chambers (210) have an upper portion (217, 219) of a rectangular configuration with a larger volume to increase the volume of air flowing through the system, and a lower portion (216, 218) of a cylindrical configuration to reduce the hydraulic losses due to vortices during water inflow and outflow.
Patent CA-2110162-C (CA)
Title: Pharmaceutical compositions containing 4-substituted imidazoles to be administered transdermally
Inventor: JALONEN HARRY
IPC: A61K31/415
Filed: 1992-05-27
Granted: 2002-11-12
Abstract: This invention relates to a transdermal preparation comprising a therapeutically active compound of formula (I) or (II) where R1, R2 and R3 which can be the same or different are H, CH3, C2H5 or Cl;  X is CH=CH or (CH2)n where n is 1 to 3 or X is -C(OR5)H- where R5 is methyl or ethyl; and R4 is hydrogen or a straight alkyl of 1 to 4 carbon atoms. The transder-mal administration of the compounds can be accomplished by preparations in the form of ointments, emulsions, lotions, so-lutions; creams, gels or transdermal patches.
Patent CA-2110266-C (CA)
Title: Enhancement of expression by gene targeting in endogenous retrovirus-like sequences
Inventor: WURM FLORIAN M
IPC: C12N9/72
Filed: 1992-05-29
Granted: 1996-10-08
Abstract: Methods are provided for the identification and use of endogenous nucleic acid sequences for homologous recombination and targeted integration of heterologous nucleic acid sequences. These methods are useful for introduction of nucleic acid into cells or tissue for gene therapy, or for the preparation of transgenic animal. Methods are also provided for enhancing the yield of genes of interest from recombinant cell culture lines.
Patent CA-2111499-C (CA)
Inventor: BONNER BRIAN B
IPC: C21D1/76
Filed: 1993-12-15
Granted: 1997-12-09
Abstract: An improved process for producing high-moisture containing nitrogen-based atmospheres suitable for oxide and decarburize annealing of carbon steels from non-cryogenically generated nitrogen is presented. These nitrogen-based atmospheres are produced by 1) mixing non-cryogenically generated nitrogen containing less than 5.0 vol.% residual oxygen with a specified amount of hydrogen, 2) humidifying the gaseous feed mixture, 3) feeding the gaseous mixture into the heating zone of a furnace through a diffuser, and 4) converting in-situ the residual oxygen present in it to moisture. According to the present invention, the total amount of hydrogen required for producing suitable atmospheres can be minimized by simultaneously humidifying the feed gas and controlling the residual oxygen level in it. The key features of the present invention include a) humidifying the feed gas prior to introducing it into the heating zone of a furnace operated above about 600°C, b) selecting the level of residual oxygen in the feed gas in such a way that it minimizes hydrogen consumption, and c) using enough amount of hydrogen to convert completely the residual oxygenpresent in the feed gas to moisture and to maintain pH2pH2O ratio in the heatingzone of the furnace below about 2 for oxide annealing and at least 2 for decarburize annealing carbon steels.
Patent CA-2121661-C (CA)
Inventor: BAUM KEVIN LYNN
IPC: H04L1/20
Filed: 1994-04-19
Granted: 1999-08-10
Abstract: In a communication unit (200) that coherently demodulates differentially-encoded modulated signals (201) to produce soft symbols (210) including first and second soft symbols, a method and associated apparatus, for use by the communication unit (200)) for converting the soft symbols (210) into soft bits (212). A quality measure (305) is determined for at least the first soft symbol (210) indicating when the quality for the first soft symbol (210) is favorable and when the quality for the first soft symbol (210) is unfavorable. The first and second soft symbols (210) are processed in a forward direction in time (208) to produce the soft bits (212) when the quality measure (305) for the first soft symbol (210) is favorable. The first and second soft symbols (210) are processed in a reverse direction in time (209) to produce the soft bits (212) when the quality measure (305) for the first soft symbol (210) is unfavorable.
Patent CA-2122605-C (CA)
Title: High temperature superconductor-dielectric resonator
Inventor: SHEN ZHI-YUAN
IPC: H01P7/10
Filed: 1992-11-05
Granted: 2002-10-08
Abstract: (57) Abstract The invention is directed to superconducting microwave resonator, to holding devices for those resonators, and to their methods of manufacture. The superconducting microwave resonators employ a superconducting film on substrates positioned on a dielectric. The holding devices include a variety of configurations, such as, a spring loaded device. The superconducting micro-
Patent CA-2125933-C (CA)
Inventor: SEKI MASAYUKI
IPC: B23B47/02
Filed: 1994-06-15
Granted: 2004-11-23
Abstract: A rotary driving device for a press machine includes: a main body (11); a push head member (21) provided for the main body (11) reciprocatingly movably in an axial direction thereof and driven in the axial direction by a striker (S) of the press machine; an air-tight gaseous spring unit (15) mounted inside the main body (11), for generating a return elastic force to urge the push head member (21) in a direction opposite to a strike direction of the striker (S); a male thread axle member (29) in mesh with female threads (33) formed in the main body (11) and rotatable when moved in an axial direction thereof by the push head member (21); a lead nut (47) exchangeably and fixedly mounted on the main body (11); a lead thread member (51) in mesh with the lead nut (47) and rotatably supported by the main body (11), for holding a rotary driven tool (T); and a coupling section (43, 55) for coupling the male thread axle member (29) and the lead thread member (51) in torque transmission relationship and in relative axial displacement relationship with respect to each other so as to absorb a difference in axial speed between both the members (29, 51).      Since at least one air-tight gaseous spring unit (15) is mounted inside the main body, it is possible to prevent the gas leakage without maintenance and thereby to realize an unmanned press machine without replenishment of the gas for many hours.
Patent CA-2126866-C (CA)
Title: Preparation of bone for transplantation
Inventor: MORSE BRENDA
IPC: A61F2/28
Filed: 1992-12-22
Granted: 1999-02-23
Abstract: The invention provides a simple, safe and effective method for treating bone and making it suitable for transplantation comprising: a) contacting a said bone with a global decontaminating agent effective to inactivate bacteria, fungi, virus and parasites; b) cleaning said bone; and c) terminally decontaminating said cleaned bone by contacting it with a global decontaminating agent effective to inactivate bacteria, fungi, virus and parasites. The invention also provides a method of cleaning bone which can be used in step (b) of the method described above and comprises contacting the bone with detergent under high pressure washing conditions at elevated temperatures.
Patent CA-2133392-C (CA)
Title: Auto-venting for polyurethane foam
Inventor: KIEFER GERRY D
IPC: B29C44/34
Filed: 1994-09-30
Granted: 2005-02-08
Abstract: A device for molding foam products comprising upper and lower portions cooperable to form a foam mold defining a mold cavity therein.      The upper mold portion has at least one vent hole therein. A mechanism for providing the mold cavity with an expandable foam during a filling cycle is also provided. The expandable foam reactively expands when provided within the cavity so as to be molded into the shape of the cavity during a foaming cycle. The foam approaches the vent hole while expanding within the mold cavity during the foaming cycle. At least one vent hole provides a passage through which air and reaction product gases introduced into the cavity as a byproduct of the reactive expanding of the foam can escape to atmosphere from the cavity during the foaming cycle.      A sensing and signal generating assembly detects the presence of the foam at a predetermined proximity to the at least one vent hole during the foaming cycle and generates a signal in response to the detection.      Finally, a sealing mechanism cooperates with the at least one vent hole to close the passage when the sensing and signal generating assembly generates the signal in response to the detection of the foam at the predetermined proximity to the at least one vent hole to prevent the foam approaching the vent hole from escaping the cavity through the passage.