baber/WOPTO huggingface dataset:
Patent CA-2177147-C (CA)
Title: 2-oxoindoline derivative
Inventor: YAMADA KOICHIRO
IPC: C07D409/06
Filed: 1994-11-25
Granted: 2001-10-09
Abstract: A 2-oxoindoline derivative represented by general formula (I) and a pharmacologically acceptable salt thereof, wherein ring A represents (un)substituted benzene; R1 represents hydrogen, cycloalkyl, aryl, nitrogeno us heterocycle, oxygenous heterocycle, sulfurous heterocycle, heterocycle containing nitrogen and oxygen, heterocycle containing nitrogen and sulfur, lower alkoxy, carboxy, cyano, lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, oxiranyl, or 2-(lower alkylthio)-1-hydroxyethyl; R2 represent s aryl, a group represented by formula (a), (un)substituted nitrogenous heteromonocycle, (un)substituted nitrogenous heterobicycle, a group represented by formula (b), (wherein n represnts 1 or 2), oxygenous heterocycle, sulfurous heterocycle, heterocyle containing nitrogen and oxyge n or heterocycle containing nitrogen and sulfur; R3 represents (un)substituted  lower alkyl; Q represents a single bond or lower alkylene; and Y represents a single bond, lower alkylene or lower alkinylene.
Patent CA-2177352-C (CA)
Title: Regenerative burner and regenerative heat exchange system applicable thereto
Inventor: TANAKA RYOICHI
IPC: F28D17/04
Filed: 1994-12-01
Granted: 1999-07-20
Abstract: The present invention provides a regenerative heat exchange system which performs heat exchange by alternately passing combustion exhaust gas as high-temperature fluid and combustion air as low-temperature fluid through a fixed regenerator, and a regenerative burner which carries out combustion using preheated air having a high temperature which is obtained by the regenerative heat exchange system. The regenerative heat exchange system comprises: a permeable regenerator  1 partitioned into three or more chambers in the circumferential direction; double-pipe outlet/inlet means 6 partitioned into a supply chamber 6a and an exhaust chamber 6b: and changeover means 3 which isolates the regenerator 1 from the outlet/inlet means 6, and by which the regenerator 1 selectively communicates with the outlet/inlet means 6 by a supply communicating hole 5 and an exhaust communicating hole 4 which are provided with such a positional relation that the supply communicating hole 5 and the exhaust communicating hole 4 do not simultaneously exist in any of partitioned chambers 9, 10 and 11 of the regenerator 1 and a vacant chamber 10 through which the fluid does not flow is formed to at least one position between the chamber through which the exhaust gas flows and the chamber 12 through which the air flows. Further, the regenerative burner is constituted by providing to the regenerative heat exchange system a fuel nozzle 31 piercing through the center thereof so that fuel is continuously injected while the high-temperature combustion air is injected from the regenerator around the fuel. Also, a heat exchange system in which a flowing direction of fluid does not change can be realized by providing outlet/inlet means 6 and changeover means in front of and at the rear of the regenerator 1 without using the fuel nozzle 31.
Patent CA-2181351-C (CA)
Title: Process and intermediates for preparing naphthyridonecarboxylic acid salts
Inventor: BRAISH TAMIM F
IPC: A61K31/435
Filed: 1994-12-12
Granted: 1999-09-28
Abstract: This invention relates to novel processes for preparing compounds of formula (I), wherein R1H is as defined below, which is a salt of the naphthyridone antibiotic 7-(1.alpha.,5.alpha.,6.alpha.)-(6-amino-3-azabic yclo¢3.1.0!hex-3-yl)-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carbocylic acid and a pharmaceutically acceptable acid. The salt and antibiotics have antibacterial activity. This invention also relates to novel intermediates, and processes for their preparation, of formulae (IV), (IIIB) or (IIIA). The compounds of formulae (IIIA), (IIIB) and (IV) are useful as intermediates in the syntheses of the azabicyclo naphthyridone carboxylic acid alkanesulfonic acid salts of formula (I).
Patent CA-2181521-C (CA)
Title: Water repellent composition, fluorocarbon polymer coating composition and coating film therefrom
Inventor: TAKAI KENICHI
IPC: C08L33/06
Filed: 1996-07-18
Granted: 2000-02-29
Abstract: Fluorocarbon polymer coating composition and coating film include a fluorocarbon polymer powder, a binder and an additive comprised by a substance having a surface free energy smaller than that of the binder.  The coating composition and coating film have improved resistance to deterioration with time of the water repellent properties of the film.
Patent CA-2182664-C (CA)
Title: Connecteur de cable electrique et procede de fabrication
Inventor: ATTAL LUCIEN
IPC: H01R24/00
Filed: 1995-02-22
Granted: 2001-11-27
Abstract: Un ensemble (10) capteur jetable de tension artérielle comporte un module (12) capteur de tension artérielle, dont part un câble (18) électrique, et un connecteur électrique (20) situé au bout de ce câble. Ce connecteur (20) électrique présente une partie (60) dotée de contacts de conducteurs pour chacun des conducteurs (62) électriques du câble électrique (18), partie (60) non isolée et disposée à l'extérieur du connecteur (20) pour permettre un contact électrique direct.
Patent CA-2184160-C (CA)
Title: Binaural synthesis, head-related transfer functions, and uses thereof
Inventor: MOLLER HENRIK
IPC: H04S1/00
Filed: 1995-02-27
Granted: 2006-01-03
Abstract: The invention relates to improved methods and apparatus for stimulating the transmission of sound from sound sources to the ear canals of a listener, said sound sources being positioned arbitrarily in three dimensions in relation to the listener. In particular, the invention relates to new and improved methods for measurement of Head-related Transfer Functions, new and improved Head-related Transfer Functions, new and improved methods for processing Head-related Transfer Functions, and new methods of changing, or of maintaining, the directions of the sound sources as perceived by a listener. The measurement methods have been improved so that it is now possible to measure and/or construct Head-related Transfer Functions for which the time domain descriptions are surprisingly short and for which the differences from one individual to the other are surprisingly low. The new Head-related Transfer Functions can be exploited in any application concerning simulation of sound transmission, e.g. auralization of concert halls, measurement, simulation, or reproduction of sound, such as in binaural synthesis, e.g. for generation, by means of two sound sources, such as by headphones or by two loudspeakers, the perception of a listener that he is listening to sound generated by a multichannel sound system, such as a surround system, a quadraphonic system, a stereophonic system, etc, in the design of electronic filters used in, e.g. virtual reality systems, to simulate sound transmission from a virtual sound source to the ear canals of the listener, or, in the design of an artificial head that is designed so that its Head-related Transfer Functions approximate the Head-related Transfer Functions of the invention as closely as possible in order to make the best possible representation of humans by the artificial head, e.g. to make artificial head recordings of optimum quality.
Patent CA-2185169-C (CA)
Inventor: HENDRICKSON JAMES D
IPC: E21B33/12
Filed: 1993-05-12
Granted: 2002-10-15
Abstract: A retrievable packer for service at high temperatures and pressures has sealing provided by a seal element prop surface (56) of larger diameter than the seal element support surface (48) of a body mandrel (34).  At least one element (30A) of a seal assembly (30) is supported on the prop surface and is subjected to a radial squeeze in the set configuration, even though a lowermost seal element (30C) may be subject to longitudinal separation.  The split level support arrangement provides an annular pocket (62) into which the elements can be retracted upon release of the packer, thereby providing clearance for retrieval.  In releasing the packer, a retainer collar (68) is shifted away from a metal backup shoe (64), thereby providing an annular pocket into which the shoe is deflected, so that it does not obstruct the drift clearance during retrieval.  The seal element assembly is preloaded by a cover sleeve (50) which releases when a predetermined compression has been achieved.  The controlled preloading of the seal elements assists movement of the elements to the larger diameter prop surface, and the seal elements are forced to expand into the annulus uniformly to prevent the formation of uneven extrusion gaps.
Patent CA-2186302-C (CA)
Title: A gas phase polymerization employing unsupported catalysts
Inventor: KELLER GEORGE ERNEST II
IPC: C08F10/00
Filed: 1996-09-24
Granted: 1999-12-28
Abstract: A process for the gas-phase polymerization of polymers which allows for the introduction of an unsupported polymerization catalyst system into the gas-phase reactor, wherein the unsupported polymerization catalyst system comprises (i) a non-volatile materials fraction containing a polymerization catalyst; (ii) a solvent fraction which is at least partially miscible with the non-volatile materials fraction and which is sufficiently volatile to allow for the formation of polymerization catalyst particles when the mixture of the solvent fraction and the non-volatile materials fraction is sprayed into the reactor; (iii) a compressed fluid; and (iv) optionally a slowly vaporizing solvent.
Patent CA-2188073-C (CA)
Title: Increasing the capacity of a personal communication service system by multiple connections to individual telephone links
Inventor: CHAVEZ DAVID LEE JR
IPC: H04W84/16
Filed: 1996-10-17
Granted: 2000-02-01
Abstract: Assigning one telephone link to each wireless set and connecting each of the assigned telephone links to all of a plurality of PCS systems. Each of the PCS systems has a plurality of base stations on which wireless sets can register. When an incoming call is received for a wireless set by a switching system terminating the telephone links, the switching system transmits a new call message on the telephone link assigned to the wireless set. The PCS system on which the wireless set is registered responds to the new call message by establishing a connection from the wireless set to the telephone link. The other PCS systems monitor the state of the call so that if the wireless set physically moves to a base station connected to a new PCS system, the new PCS system can continue the call without interruption or theswitching system having to perform any additional operations. Also, the PCS systems can be relatively small. When additional wireless sets are added, it is only necessary to add another PCS system and to connect all of the telephone links identified with wireless sets to the new PCS system.
Patent CA-2188931-C (CA)
Inventor: MIYATA MASAYUKI
IPC: A61P9/00
Filed: 1996-02-27
Granted: 2007-09-11
Abstract: The present invention relates to an agent for treating cor pulmonale containing as an active ingredient a prostaglandin I2 derivative represented by the following formula, or a pharmacologically acceptable salt thereof. The agent exhibits excellent effects in oral or parenteral administration. <IMG>
Patent CA-2191401-C (CA)
Inventor: VANBORK ERIK C
IPC: F04B43/00
Filed: 1996-11-27
Granted: 2004-04-13
Abstract: A new and improved diaphragm metering pump is provided with a modular removable drive assembly. The removable drive assembly provides rotation to an eccentric shaft within the pump and is disposed outside rotary bearings for the eccentric shaft and outside sealing elements containing hydraulic fluid in the pump housing.      In a preferred embodiment, a readily accessible mechanically activated hydraulic refill valve cartridge is provided to hydraulically balance the diaphragm. In a preferred embodiment, a push to prime air bleeder valve is provided permitting automatic priming of the hydraulic system without requiring disconnection of any valves. The pump is designed to interchangeably receive a number of diaphragm assemblies including an improved leak detection diaphragm and a double-sided leak detection diaphragm. In a preferred embodiment, a diagnostics window is provided permitting visual inspection of the operating condition of various valves connected to the hydraulic system.
Patent CA-2191470-C (CA)
Inventor: BETSO STEPHEN R
IPC: C09J153/02
Filed: 1995-06-01
Granted: 2002-12-17
Abstract: La présente invention concerne une composition pour mélanges au moins binaires d'élastomères thermoplastiques. Elle comprend au moins un copolymère styrénique en bloc dans lequel la composition a essentiellement la même élasticité comparative, la même aptitude d'emploi à haute température et la même dureté que la partie de copolymère en bloc non diluée de la composition. La composition a également de meilleures qualités de stabilité thermique et d'aptitude au traitement, et elle convient bien à la fabrication de moules, de films et de fibres élastiques, de même qu'à la formulation d'asphaltes, d'adhésifs et de matériaux d'étanchéité. Les proportions pondérales de cette nouvelle composition pour mélanges élastomères thermoplastiques sont: (a) de 50 à 99 % au moins d'un copolymère styrénique en bloc, et (b) de 1 à 50 % d'un interpolymère d'éthylène ramifié de façon homogène et dont la densité est comprise entre 0,855 et 0,905 g/cm?3¿; dans la formulation employée, l'interpolymère d'éthylène, dans la quantité donnée, est un extenseur essentiellement inerte du copolymère styrénique en bloc dont la composition est caractérisée par ailleurs par: (i) des modules élastiques de stockage inférieurs à 3,5 x 10?9¿ dynes/cm?2¿ aux températures comprises entre -26 xC et 24 ~C; (ii) un rapport inférieur à 4 entre les modules élastiques de stockage à -26 ~C et à 24 ~C, et (iii) des modules élastiques de stockage à -26 ~C et 24 ~C respectivement de 0,2 à 3 fois supérieurs aux modules élastiques de stockage de la partie de copolymère en bloc non diluée de la composition.
Patent CA-2192406-C (CA)
Inventor: FOODY PATRICK J
IPC: D21C7/12
Filed: 1996-12-09
Granted: 2003-11-18
Abstract: The present invention relates to an automated tracer system and method for measuring the residence time of wood pulp as it moves through various stages of processing in a pulp mill.  A tracer compound comprising a neutral salt of a halogen is introduced into a first location in the path of the pulp slurry; at a second location an automated detector detects the concentration of tracer compound over a time period;  a controller relays a voltage signal from the detector to a processor which uses a calibration curve to integrate tracer concentration over time and thereby derive pulp residence, between the first and second locations.
Patent CA-2201892-C (CA)
Inventor: BREARLEY ANN MARION
IPC: C08G69/28
Filed: 1995-11-16
Granted: 2008-12-30
Abstract: The invention provides a continuous process for the preparation of polyamides, equipment in which the polymerization process can be conducted, and process control methods for said polymerization process.
Patent CA-2202762-C (CA)
Inventor: LITTLE JACK RYAN
IPC: G01M15/10
Filed: 1995-10-19
Granted: 2003-05-06
Abstract: A parametric emissions monitoring system (15) for monitoring stationary engine/compressor units (50, 52) coupled to a pipeline provides, in a reciprocating embodiment, reliable and accurate determinations of emission levels for NOx, CO, and total hydrocarbon (THC) from an emissions matrix (169) primarily as a function of engine speed (102) and engine torque. Validation of the determined emissions level is provided by comparing (116) the values of a set of actual engine operating parameters (112) with a respective value in a set of calculated engine operating parameters (114) to determine whether the deviation of the actual operating parameter from the expected operating parameter is within a defined range (118), and thus whether the engine is operating within a defined control envelope. When the comparison indicates that the actual engine operating parameters diverge from the respective expected engine operating parameter, the emissions are determined from the emissions matrix, and are subjected to a bias factor, the bias factor depending on the severity of the deviation.
Patent CA-2207295-C (CA)
Inventor: AMONETT DANIEL KEITH
IPC: H01H43/10
Filed: 1997-05-28
Granted: 2001-05-29
Abstract: An appliance timer has features to facilitate automated assembly or manual assembly. A timer housing base accepts timer components from two directions, and installation of components in either direction is along a straight axis. A motor in the timer engages a gear train which runs a drive cam. The drive cam imparts motion to a camstack which then engages timer blade switches, and the blade switches operate the appliance. A subinterval is also supplied on the timer to allow periodic operation of a switch without the use of the camstack. The timer also features a quiet manual advance which removes the blade switches from communication with the camstack to allow an operator to select various timer programs without any of the clicking noises that are usually associated with timer program selection. Furthermore, a detent slider is positioned in communication with the camstack to provide a tactile feel for the operator of the timer when selecting between various timer programs.
Patent CA-2207467-C (CA)
Title: Catalyst for olefin polymerization and method for preparing polyolefins
Inventor: FUSHIMI MASAKI
IPC: C07F7/18
Filed: 1997-06-06
Granted: 2005-04-05
Abstract: Disclosed are a catalyst for polymerizing olefins containing a solid catalyst component containing titanium, magnesium and halogen as essential components (component (A)); an organic aluminum compound (component (B)); and a silane compound (component (C)) represented by general formula (1)   wherein R1 and R2 independently represent a straight, branched or cyclic saturated aliphatic hydrocarbon group or a silyl group, a method of preparing polyolefins using the catalyst as well as novel trimethoxysilane compounds represented by the general formula (1) in which R1 is a straight saturated aliphatic hydrocarbon group having 2 to carbon atoms, and R2 represents a methyl group. Use of the catalyst enables efficient production of polyolefins having a low molecular weight (MFR>20 (g/10 minutes)), a broad molecular weight distribution (MLMFR/MFR>22) and a high stereoregularity when applied to polymerization of olefins having 3 or more carbon atoms.
Patent CA-2208143-C (CA)
Inventor: DUNCAN CAROLYN B
IPC: C10M169/04
Filed: 1995-12-08
Granted: 2006-04-04
Abstract: A biodegradable lubricant which is prepared from: about 60-99 % by weight of at least one biodegradable synthetic ester base stock which comprises the reaction product of: a branched or linear alcohol having the general formula R(OH)n, wherein R is an aliphatic or cyclo-aliphatic group having from about 2 to 20 carbon atoms and n is at lea st 2; and mixed acids comprising about 30 to 80 molar % of a linear acid having a carbon number in the range between about C5 to C12, a nd about 20 to 70 molar % of at least one branched acid having a carbon number in the range between about C5 to C10 and wherein no more than 10 % of the branched acids used to form the biodegradable synthetic ester base stock contains a quaternary carbon; where in the ester base stock has a carbon to oxygen ratio of between about 0.15:1 to 0.3:1; and exhibits the following properties: at least 60 % biodegradation in 28 days as measured by the Modified Sturm test; a pour point of less than -25 .degree. C; a viscosity of less than 750 0 cps at -25 .degree. C; and oxidative stability of up to 45 minutes as measur ed by HPDSC.
Patent CA-2213348-C (CA)
Title: Procede et appareil destines a la mise en oeuvre efficace de bancs de filtrage a bande laterale unique fournissant des mesures precises de la phase et de la puissance spectrales
Inventor: DAVIDSON GRANT ALLEN
IPC: G10L19/035
Filed: 1996-03-20
Granted: 2006-07-11
Abstract: On déduit des mesures précises de la phase et de la puissance spectrales estimées à partir de deux représentations spectrales d'un signal ou de chaque signal d'une pluralité de signaux d'entrée générés par des bancs de filtrage à échantillonnage critique. Les mesures ainsi déduites peuvent être utilisées dans le cadre de diverses applications, y compris l'affectation adaptative de bits dans des systèmes de codage perceptif. Une mise en oeuvre efficace d'un banc de filtrage particulier à échantillonnage critique et à bande latérale unique est également décrite.
Patent CA-2215415-C (CA)
Inventor: ARENTSEN JOHAN HENDRIK ADOLF
IPC: B29C44/42
Filed: 1996-04-01
Granted: 2007-09-04
Abstract: La présente invention décrit un procédé de fabrication de produits biodégradables avec une structure en mousse expansée, dans lequel une masse comportant au moins des polymères naturels tels que l'amidon est envoyée sous pression dans ou à travers un moule (23, 63) et la masse (M, S) est chauffée dans le moule (23, 63) afin de provoquer une réticulation des polymères naturels, tandis qu'avant l'introduction dans le moule, la masse a une température qui est inférieure à la température de gélatinisation et que dans le moule, elle est amenée au moins à la température de cuisson.
Patent CA-2220535-C (CA)
Inventor: STRAETKER JOHN GEORGE
IPC: B62D11/18
Filed: 1997-12-01
Granted: 2002-02-26
Abstract: A steering control system for a tracked vehicle includes a spring centered steering wheel which is rotatable in both directions to endstops. A steering control unit executes a transitional counter-rotation (TCR) mode algorithm which disables steering or counter-rotation when the gear lever moves from park to neutral or from park to neutral to gear while the clutch is disengaged. Steering function can be re-enabled by turning the steering wheel to its centered position and then turning the steering wheel in either direction away from its centered position, or by turning steering wheel towards one of its endstop positions (without centering the steering wheel). If steering or counter-rotating is enabled the second way, then during a transition period the turning rate as a function of the position of the steering wheel will be less than that of normal operation. If the steering wheel is then held at the endstop position, the control system will automatically and gradually increase the rate of turning (by increasing an electronic steering gain value) until full normal turning rate capability is attained.
Patent CA-2220807-C (CA)
Inventor: SHPATER PINHAS
IPC: G08B29/24
Filed: 1997-11-12
Granted: 2004-08-24
Abstract: A motion sensor has a parasitic response to at least one of radio frequency (RF) or electromagnetic (EM) impulse signals. The motion detection circuit for security systems has a dummy RF receiver for generating an RF response signal, the receiver having a response to at least one of radio frequency (RF) or electromagnetic (EM) impulse signals similar to the parasitic response. An alarm output signal is generated in response to intruder motion in the predetermined area while preventing false alarms due to the parasitic response.