baber/WOPTO huggingface dataset:
Patent CA-2164497-C (CA)
Title: A refrigerating machine oil and a fluid composition for use in a refrigerating machine
Inventor: TAKIGAWA KATSUYA
IPC: C10M171/00
Filed: 1995-12-05
Granted: 2006-02-07
Abstract: A refrigerating machine oil for use with a hydrofluorocarbon refrigerant in a refrigerator, which comprises at least one member selected from the group consisting of hydrocarbon compounds represented by the following general formulas (1), (2) and (3)   (wherein R represents an alkylene group or alkenylene group having 1 to 8 carbon atoms; R1, R2, R3 and R4 may be the same or different and are each a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, the total number of carbon atoms of R, R1, R2, R3 and R4 being within a range of 1 to 8; and R6, R7, R8 and R9 may be the same or different and are each a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, the total number of carbon atoms of R6, R7, R8 and R9 being within a range of 1 to 10). In other embodiments, a fluid composition for use in refrigerating machine which comprises a hydrofluorocarbon refrigerant and at least one hydrocarbon compound, a refrigerating machine which uses therein the fluid composition as a circulating fluid, and a method of lubricating a cooling system of a refrigerator using therein a hydrofluorocarbon refrigerant by using said refrigerator oil in the cooling system.
Patent CA-2166402-C (CA)
Title: A device for aiding the solubilization of gases in liquids
Inventor: ISBELL ARTHUR F
IPC: B01F27/94
Filed: 1994-05-02
Granted: 2001-02-06
Abstract: An apparatus and method are disclosed for rapidly and efficiently dissolving gases in a liquid. A diffuser, including a closed top hollow device, preferably a hollow conical, shaped frustum having a plurality of openings around the perimeter near the closed top is submerged in the liquid and rotated at relatively high speeds creating a centrifuge-pump. When the rotating diffuser is located near the surface of the liquid, no additional gas is required in the dissolution process. When the device is submerged substantially below the surface or if a gas other than oxygen is to be dissolved, then additional gas must be pumped into the bottom opening of the rotating diffuser. This device can be used in oxygenating treated sewage water, removing impurities from liquids, and for oxygenating horticultural ponds to increase production.
Patent CA-2167890-C (CA)
Inventor: KVANT MAGNUS
IPC: C01F7/16
Filed: 1996-01-23
Granted: 2006-06-06
Abstract: The present invention relates to a process for the preparation of solutions of aluminum salts, characterized in that an aluminate of an alkali metal and/or alkaline earth metal is dissolved in an acid solution to the formation of a solution which is used as such or is diluted to a suitable concentration.
Patent CA-2170174-C (CA)
Inventor: BARR JOHN D
IPC: E21B21/10
Filed: 1996-02-23
Granted: 2006-09-12
Abstract: A modulated bias unit, for use in a steerable rotary drilling system, comprises a number of hydraulic actuators spaced apart around the periphery of the unit, each having a movable thrust member which is hydraulically displaceable outwardly for engagement with the formation of the borehole, and a control valve operable to bring the actuators alternately in succession into and out of communication with a source of fluid under pressure, as the bias unit rotates. The fluid pressure supplied to each actuator may thus be modulated in synchronism with rotation of the drill bit, and in selected phase relation thereto, so that each movable thrust member is displaced outwardly at the same rotational position of the bias unit so as to apply a lateral bias to the unit for the purposes of steering an associated drill bit. To enable the biassing action to be neutralised or reduced there is provided an auxiliary shut-off valve in series with the control valve, which is operable to prevent the control valve from passing the maximum supply of fluid under pressure to the hydraulic actuators.
Patent CA-2171691-C (CA)
Inventor: SPARKS JAMES R
IPC: B27G13/10
Filed: 1996-03-13
Granted: 2007-10-02
Abstract: A blade holder for a chipper having a support that is configured to accommodate chip flow. The support is scoop shaped to provide a guide surface to guide the chips through the chipper while avoiding damaging impact. The chipper blades are in two parts and fitted together in end-to-end abutment and forming a bend at their juncture. One of the blade ends is grooved to receive an end edge of the other blade whereby the juncture is overlapped for added strength and to resist wood fibers being wedged into the juncture.
Patent CA-2174383-C (CA)
Title: Method of making a coated substrate with polyurethane/urea contact adhesive formulations and the coated substrate produced by this method
Inventor: MARKUSCH PETER H
IPC: C08G18/48
Filed: 1996-04-17
Granted: 2007-09-18
Abstract: The present invention relates to a method of making a coated substrate that requires a polyurethane/urea contact adhesive, and the coated substrates produced by this method. This invention requires a) a polyisocyanate with a functionality of less than about 4, b) optionally, a polyol blend consisting of about 95 to 100% polyether polyols with molecular weights from about 1800 to 12000 and average functionality from about 1.5 to about 4 and up to about 5% of chain extenders with molecular weights from about 60 to 400 and average functionality from about 1.5 to about 3, and c) polyethers having at least two isocyanate reactive groups and a molecular weight of from about 1800 to about 12000 and average functionality from about 1.5 to about 4 in which at least 50% of the isocyanate reactive groups are primary and/or secondary amino groups. The weight ratio of components b) to component c) ranges from about 95:5 to about 0:100, and the amounts of components a), b), and c) are such that the equivalent ratio of isocyanate groups to isocyanate-reactive groups is from about 85:100 to about 115:100 and the sum of the urethane group content plus the urea group content is from about 1 to about 12%.
Patent CA-2177297-C (CA)
Title: Procede de detection gyrometrique et gyrometre optique echantillonne pour la mise en oeuvre dudit procede
Inventor: CHEVALIER JEAN-RENE
IPC: G01C19/72
Filed: 1996-05-24
Granted: 2007-03-20
Abstract: Le dispositif de détection gyrométrique selon l'invention comprend un guide optique annulaire comportant deux coupleurs optiques une source de rayonnement lumineux à fréquence commandable connectée aux entrées des deux coupleurs par l'intermédiaire de deux interrupteurs optiques pilotés en alternance par une horloge d'échantillonna ge de manière à obtenir une émission dans le guide d'une succession de trains d'ondes rotati fs et de trains d'ondes contrarotatifs, un circuit de modulation du rayonnement émis par la source, une boucle d'asservissement réglant la fréquence du rayonnement émis par la sour ce de maniére à l'accorder à la fréquence de résonance du guide, et un circuit de mesure d e l'intensité du rayonnement lumineux des trains d'ondes transmis par le second coupleur. L'invention permet de s'affranchir des effets perturbants de la rétrodiffusion et de l'effet "Kerr".
Patent CA-2193337-C (CA)
Inventor: GRAUDUMS IVARS
IPC: C07C217/74
Filed: 1996-12-18
Granted: 2005-09-27
Abstract: 1-phenyl-2-dimethylaminomethyl-cyclohexan-1-ol compounds, methods of preparing them and the use of these compounds in drugs are described.
Patent CA-2194182-C (CA)
Title: Determining biodegradability of iminodiacetic acid derivatives, degradable chelants, uses and compositions thereof
Inventor: STRICKLAND ALAN D
IPC: G16B15/00
Filed: 1995-07-14
Granted: 2006-05-02
Abstract: Chelants represented by formula (Ib) are determined to be biodegradable wh en Distance A is from 3.8 x 10 -10 to 4.6 .times. 10 -10 m, Distance B is from 5.1 .times. 10-' to 5.9 .times. 10 -10 m, and Distance C is from 43 to 6.7 .times. 10 -10 m. Compounds meeting these criteria are referred to as compounds of Formula (2). In addition to methods of analysis and computer systems therefor, the invention includes a method of chelating a metal ion to form a chelate and biodegrading the chelate comprising step (a) contacting the metal ion with at least one compound of Formula (2) to form a chelate and (b) contacting the resultant chelate or chelant with microbes of the type specified in ASTM 2667-89, ISO 5815 or effective enzymes thereof under conditions and for a time sufficient for biodegradation wherein either (i) the chelate formed in step (a) is formed in a process of removing deposits, scal e, or rust; cleaning or washing; controlling metal initiated or catalyzed oxidation or deterioration including spoilage, discoloration, or rancidification; textile treatment; paper making; stabilization of polymers or phosphates; or petroleum drilling, production o r recovery; or (ii) the chelate formed in step (a) is before step (b) used as a redox catalyst, in a process of photographic bleaching, bleach-fixing or developing; in electroless deposition or plating; in removing acid or oxide gases including H2S, NO x, SO x, CO and CO2; or in providing agricultural nutrients.
Patent CA-2194778-C (CA)
Inventor: WU CHI
IPC: H04B10/29
Filed: 1995-02-22
Granted: 2002-07-16
Abstract: A polarization independent tunable filter/receiver for optical communications.  The tunable filter, operating as a directional coupler, has three waveguides including a central, feedguide (32) and a pair of branch waveguides (34, 36).  Through either electro-optic effects or free carrier injection, the TM and TE  polarization modes of the central wavelength can be coupled from the feedguide (32) to the appropriate branch guide. The separated modes can be either detected independently (40, 42) or reunited in phase for further processing.
Patent CA-2195235-C (CA)
Title: Dispositif refrigere de conservation pour pate a crepe et installation destinee a la fabrication de crepes
Inventor: SALA ANDRE
IPC: A47J41/00
Filed: 1997-01-15
Granted: 2007-04-17
Abstract: Récipient (3) pour produit alimentaire notamment pour pâte à crêpe (90) du type comprenant une enceinte interne (16) délimitée par une paroi périphérique interne (17) dans laquelle est conservé le produit, et une enceinte périphérique (18) entourant au moins en partie ladite enceinte interne, ledit récipient comprenant des moyens de refroidissement (MR), caractérisé en ce que les moyens de refroidissement (MR) sont constitués par une matière réfrigérante (20) disposée dans l'enceinte périphérique (18).
Patent CA-2195542-C (CA)
Title: Culture medium for rapid count of coliform bacteria
Inventor: MACH PATRICK A
IPC: C12Q1/10
Filed: 1995-07-12
Granted: 2009-02-24
Abstract: This invention generally relates to products and processes used to determine the presence of bacteria in a sample and particularly relates to a culture medium which may be used in products and processes to allow early detection and count of Enterobacteriaceae. The bacterial culture medium which facilitates the early detection and count of bacteria is a mixture of gelatin peptone and yeast extract, lactose or glucose, sodium chloride, bile salts, guar gum and an excess amount of sulfonphthalein dye sufficient to provide a high concentration of dye in close proximity of the growing bacteria in order to allow detection a nd count of the growing bacteria.
Patent CA-2195805-C (CA)
Inventor: WOOD DONALD R
IPC: B41F7/32
Filed: 1997-01-22
Granted: 1999-05-25
Abstract: A system for supplying a dampening liquid to a water fountain tray in a printing press to maintain the desired amount of the liquid in the tray comprises a sealed dampening liquid container mounted on outside wall of tray. The container has vertical side walls, a top and bottom wall, an inlet and outlet port in the bottom, and a spring loaded, pressure sensitive valve installed in the inlet port. The inlet port is connected to a pressurized liquid supply line, and the outlet port is connected to a line which supplies liquid to the tray. The spring loaded valve can be adjusted to any liquid level within the tray.
Patent CA-2196382-C (CA)
Inventor: HEBERT JOSEPH V
IPC: E21B23/01
Filed: 1997-01-30
Granted: 2005-09-06
Abstract: A mechanical set anchor wherein a plunger extending from a base end of an anchor body activates a pin type trigger which releases a spring utilized to set multiple slips extending from the body of the anchor. Continued downward compressive forces fully sets the slips into the borehole pipe casing. The slips are maintained in their fully set position by a locking nut. Means are additionally provided to further set the slips into the pipe casing after slips are released from the anchor body. The anchor is mechanically released by an upward pull under tension of sufficient strength to shear release pins that release the compressed spring fully retracting the slips within the anchor body so that the anchor may be tripped from the borehole without interference from the previously engaged slips.
Patent CA-2197845-C (CA)
Title: Latch system
Inventor: SWAN DAVID A
IPC: E05C9/12
Filed: 1997-02-18
Granted: 2007-05-08
Abstract: A latch system which includes a latch bar slidable up and down on an interior of an enclosure door. The latch system has a rack member mounted on the latch bar extending through an orifice in the door to engage an actuator on the exterior of the door. The latch bar has glides and retainer clips mounted to the latch bar for positioning the bar relative to the door. The door may include a gasket for sealing an enclosure, with the latch bar mounting outside of the sealed area. Retainer fingers include a roller which engage a latch catch mounted to the enclosure frame. The finger members and the rack members are reversible for mounting in either direction so that the door may be reversed at any time. The latch catches are configured for receiving a finger member at either end for engagement of the door.
Patent CA-2200619-C (CA)
Inventor: PETERSON RUDOLPH ANDREW JR
IPC: F16D48/06
Filed: 1997-03-20
Granted: 2000-02-22
Abstract: An overheat protection circuit includes a resistor having a first lead connected to the engine temperature switch and the PTO relay coil circuit. The second lead of the resistor is connected to the output of an interlock circuit to provide energizing voltage signal to the PTO relay for operation of the PTO driven attachment when preselected operating conditions are present on the vehicle. If for any reason the engine temperature rises above a preselected maximum operating temperature, the engine temperature switch will close and cause the voltage at the second lead to drop below the minimum operating voltage of the PTO relay. The PTO relay deenergizes to remove drive from the attachment. The PTO cannot be reengaged until the engine operating temperature drops below the maximum operating temperature. The resistor preferably is a positive temperature coefficient thermistor to reduce power dissipation through the circuit while the temperature switch is closed and the PTO relay is deenergized.
Patent CA-2202675-C (CA)
Inventor: ZIGERLIG MAX
IPC: C08J9/08
Filed: 1997-04-14
Granted: 2003-08-19
Abstract: In a flexible cleaning element  (3n)  for rotating brushes for automatic washing of vehicles, suitable for being attached to a rotating support  (2) and made of an expanded closed-cell synthetic resin,  said expanded synthetic resin includes a copolymer (EVA) that is obtained by adding vinyl acetate to it.
Patent CA-2205906-C (CA)
Inventor: HILGER CHRISTOPH-STEPHAN
IPC: C07D209/14
Filed: 1995-10-10
Granted: 2006-10-03
Abstract: Selon un procédé de diagnostic in vivo, par rayons infrarouges proches (rayons I.R. proches), on utilise des colorants solubles dans l'eau et leurs produits d'addition biomoléculaires ayant des propriétés photophysiques et pharmacochimiques déterminées comme agents contrastants le diagnostic par fluorescence et par transillumination dans le domaine spectral des rayons infrarouges proches. L'invention concerne également de nouveaux colorants et des agents pharmaceutiques contenant ces colorants.
Patent CA-2206366-C (CA)
Title: Substituted 2-naphthoylguanidines, process for their preparation, their use as a medicament or diagnostic, and medicament containing them
Inventor: SCHWARK JAN-ROBERT
IPC: C07D213/40
Filed: 1997-05-28
Granted: 2008-02-19
Abstract: Substituted 2-naphthoylguanidines of the formula I (see formula I) are suitable as antiarrhythmic pharmaceuticals having a cardioprotective component for infarct prophylaxis and infarct treatment and for the treatment of angina pectoris. They also preventively inhibit the pathophysiological processes in the formation of ischemically induced damage, in particular in the production of ischemically induced cardiac arrhythmias.
Patent CA-2207804-C (CA)
Inventor: LEON ALBERTA
IPC: A61P37/04
Filed: 1995-12-13
Granted: 2007-08-07
Abstract: Le très grand nombre de composés théoriquement concevables résultant de la combinaison de tous les substituants revendiqués dans la formule (I) empêche une recherche complète. Pour des raisons économiques, on a limité la recherche aux composés suivants: R1 représente un radical hydrocarbure qui n'est pas substitué ou l'est par seulement un groupe OH et possède une chaîne linéaire d'au moins 8 atomes de carbone (A), le groupe NR2R3 représente soit un acide aminé alpha, bêta ou gamma (par exemple des acides aminés comme la proline ne sont pas compris), ou un reste glycosamine. Malgré la limitation ci-dessus mentionnée, la recherche a donné un trop grand nombre de composés pertinents. En conséquence, on a encore limité celle-ci à des composés dans lesquels NR2R<3> représente glycine, bêta-alanine, l'acide gamma-amino-butyrique, des dérivés sérine ou cystéine, ou glycosamine possédant les structures suivantes: (a), (b), (c). On a relevé un nombre encore trop grand de composés pertinents que l'on ne peut pas tous citer dans le rapport de cette recherche. Les documents cités constituent seulement une sélection arbitraire et le rapport de la recherche doit être considéré comme incomplet. On décrit des amides d'acides mono et bicarboxyliques à acides aminés ou glycosamines, à activité sélective sur le récepteur périphérique des cannabinoïdes, ainsi que l'utilisation de ces amides dans le traitement de pathologies associées à la modulation dudit récepteur. On décrit également le procédé de préparation de ces amides ainsi que des compositions pharmaceutiques les contenant.
Patent CA-2207982-C (CA)
Inventor: RUSH KENT R
IPC: B41M5/32
Filed: 1997-06-16
Granted: 2004-09-28
Abstract: The present invention is directed to a heat-sensitive imaging material that comprises a support on which is formed a heat-sensitive imaging layer. This imaging layer comprises a color-forming amount of a substantially colorless, finally divided noble metal salt of an organic acid, an organic reducing agent that is capable of a color-forming reaction with the noble metal salt under heating conditions to produce a colored image, and a stabilizer compound of formula (I) that mitigates the formation of non-imaging background color in the imaging layer:      In formula (I), Z1, Z2, and Z3 each independently represents hydrogen, an alkali metal ion, an alkyl group comprising 1 to about 8 carbon atoms, an aralkyl or cycloalkyl group comprising 5 to about 10 carbon atoms, or an aryl group comprising 6 to about 15 carbon atoms; or Z1 and Z2 together represent a divalent alkaline earth metal ion, a divalent alkylene group comprising 2 to about 8 carbon atoms, or a divalent aryl group comprising 6 to about 30 carbon atoms; with the proviso that, when Z1 and Z2 together do not represent a divalent alkaline earth metal ion, at least one of Z1, Z2 and Z3 represents hydrogen or an alkali metal ion.
Patent CA-2210252-C (CA)
Inventor: KENNEDY PAUL E
IPC: C07D239/95
Filed: 1996-01-11
Granted: 2009-04-07
Abstract: L'invention concerne une forme cristalline de sels de trimétrexate, soit en tant que glucuronate, acétate, hydrochlorure, méthanosulfonate, soit en tant que lactate, qu'on peut traiter galéniquement en tant que substance stable, solide et bien définie, ainsi que des procédés d'obtention des formes cristallines. Ces formes permettent de prolonger la stabilité de conservation du médicament et de l'administrer par voie orale ou intraveineuse.
Patent CA-2210643-C (CA)
Inventor: GULAK P GLENN
IPC: G11C11/56
Filed: 1996-12-06
Granted: 2001-08-21
Abstract: Cette invention concerne des mémoires adressables à contenu rémanent, binaires et à valeurs multiples (NVCAM), lesquelles utilisent des condensateurs ferroélectriques (634, 644, 714, 910, 918, 965, 976) en tant qu'éléments de stockage rémanents. L'accès à l'exploitation des NVCAM se fait soit en série, soit en parallèle. Dans une NVCAM à 2 bits possédant une structure d'accès parallèle, l'opération de recherche se fait par l'accès simultané à une polarisation à 4 niveaux du condensateur ferroélectrique. Le nombre total des opérations de recherche effectuées peut ainsi être réduit.
Patent CA-2218581-C (CA)
Title: Multifunction sensor and network sensor system
Inventor: ELLISON DAVID F
IPC: G08B13/19
Filed: 1997-10-17
Granted: 2003-06-24
Abstract: A multifunction sensor provides a plurality of parameter sensors in one sensor module which can interface with and control operation of one or more processor control systems in an occupied space networked environment such as a commercial building. The multifunction sensor comprises at least an occupancy sensor, an ambient light sensor, and a temperature sensor.  A common network communications and control processor is coupled to a common communication transceiver, and are shared in common by the occupancy sensor, the ambient light sensor and the temperature sensor, such that the multifunction sensor can interface with and control operation of one or more processor control systems.  A plurality of the multifunction sensors are placed at different locations throughout the building.  The multifunction network sensor system further comprises energy management and security controller systems, and a common data communication network which connects to the multifunction sensors and the controller systems to form a local operating network in the building. Each multifunction sensor is assigned a unique location address, and can transmit and receive data, including its own unique address, over the data communication network.
Patent CA-2220447-C (CA)
Title: Novel fusion protein recovery and purification methods
Inventor: BRIASCO CATHERINE A
IPC: C07K1/22
Filed: 1996-04-11
Granted: 2009-04-07
Abstract: Provided by the present invention are novel methods of protein recovery and purification methods and more specifically novel methods for the recovery and purification thioredoxin fusion proteins, especially of IL-11
Patent CA-2228693-C (CA)
Title: Coaxial connector socket
Inventor: ROSENBERGER BERNHARD
IPC: H01R13/646
Filed: 1998-02-04
Granted: 2003-08-19
Abstract: A coaxial plug-and-socket connector has an external-conductor contact-socket for engaging a mating plug external-conductor. The socket has an end face through which the mating-plug external-conductor passes. The external-conductor contact-socket has a bushing with a metal wall with an axial slit. The wall at the bushing end face is compressed in such manner that it conically tapers toward the mating-plug external-conductor. The opposite wall segments at the slit partly overlap so the bushing has a frustoconical shape and spring properties.