baber/WOPTO huggingface dataset:
Patent CA-2038648-A1 (CA)
Title: Process for conserving steam quality in deep steam injection wells
Inventor: GONDOUIN MICHEL
IPC: E21B36/00
Filed: 1991-03-19
Abstract: The degradation of steam quality due to heat losses prior to its injection into a heavy oil reservoir is reduced by a process utilizing the heat contained in a stream of reservoir fluids produced from the same reservoir,following a cycle of steam injection.These hot reservoir fluids are produced from one of several horizontal drainholes connected to the same vertical cased well, while at least one of the other drainholes is under cyclic steam injection. Steam from a boiler located in close proximity of the well head is conveyed downhole through an insulated tubing to a Downhole halve Section used to direct the flow of steam from the steam tubing to each of the drainholes in succession and to direct the flow of reservoir fluids from the previously steam-injected drainholes to the production tubing. Both tubings are installed within the casing of the vertical well and each of them is dedicated to carrying only one type of fluid:steam or reservoir fluids.Only the drainhole liners see an alternance of steam and of reservoir fluids.The heat contained in fluids supplied from the surface for lifting the produced fluids to the surface is also used to reduce heat losses from the steam tubing to the cold rocks surrounding the well. The heat loss reduction is achieved by reducing the temperature gradient across the insulation layer of the steam tubing. Detrimental heat losses through the well casing can also be reduced by using an insulated production tubing, concentric with the central insulated steam tubing.
Patent CA-2038686-A1 (CA)
Inventor: IKENAGA YOSHIHIRO
IPC: B01J20/20
Filed: 1991-03-20
Abstract: A novel method and apparatus is provided herein for removing SO2 and/or NO X from an exhaust gas. The method includes the first step of providing a zone containing an activated carbon which comprises carbon microcrystals which are irregularly arranged, and difficultly graphitizable carbon, in the form of difficultly graphitizable crosslinking lattices in the gaps among carbon microcrystals and which has a pencil hardness of from B to 6B, a pore size of 100-400.ANG., a specific surface area of 100-500 m2/g, and a pore volume of 1.3-5.0 ml/g. The next step comprises passing the exhaust gas through such zone containing such activated carbon.
Patent CA-2041158-A1 (CA)
Title: Tow hook activated brake release method and apparatus
Inventor: WAGNER EDWIN R
IPC: F16D65/78
Filed: 1991-04-24
Abstract: ABSTRACT A brake release apparatus for a vehicle equipped with a spring-applied hydraulically-released brake system. The apparatus includes a tow hook attached to the vehicle and operably connected to a hydraulic cylinder so that a towing force on the tow hook actuates the hydraulic cylinder.  The hydraulic cylinder is connected to transmit a hydraulic pressure to the vehicle brakes, releasing the brakes to permit towing.  A spring returns the tow hook to its original position when the towing force is removed, thereby permitting the spring-activated brakes to be reapplied.
Patent CA-2042023-A1 (CA)
Title: Incinerator mud injection device
Inventor: BARIA GUY
IPC: F23N5/24
Filed: 1990-09-20
Abstract: Device making it possible to carry out the injection of sludge, originating in particular from waste-water purification stations, into the combustion chamber of an incinerator, in particular a domestic-waste incinerator, characterised in that it comprises at least one injector (10) of small diameter which passes through the means for thermal protection of the combustion chamber and is fed, according to a constant flow rate for all the injectors, by means of a distribution chamber (12), each injector being constituted by a tube (18) which has a cylindrical shape and comprises an endpiece of conical shape (20), on the combustion chamber side, with the large angle situated on the side of the outlet of the sludge from the injector, and in that the thermal control of each injector is carried out so as to obtain a linear temperature gradient all along the injector, carrying out the formation in the injector, gradually during injection, of a calibrated roll of sludge comprising a surface crust in the zone close to the combustion chamber. <IMAGE>
Patent CA-2042217-A1 (CA)
Title: Rf power calibration for an nmr scanner
Inventor: SCHAEFER DANIEL J
IPC: G01R33/54
Filed: 1991-05-09
Abstract: Abstract of the Disclosure An NMR imaging system includes a prescan procedure in which the RF transmit power level is calibrated to produce an optimal, uniform RF field.  Pulse sequences are conducted at a series of RF power levels and from the resulting acquired NMR data the power level which produces the most uniform signal across the extent of the subject being imaged is determined.
Patent CA-2045463-A1 (CA)
Inventor: DIMAIO ANTHONY
IPC: B05B13/02
Filed: 1990-10-16
Abstract: Un appareil d'enduction d'échantillons ou de faibles quantités de dispositifs de fixation ou de boulons (10) filetés extérieurement, comprend une amenée (32, 38, 40, 42, 44) de poudre, un dispositif de chauffage (26) par induction, ainsi qu'un système (50) de collecte de poussière. Un support (11) magnétisé à va-et-vient, vient au contact d'une transmission par frottement (16, 60, 64) destiné à mettre en rotation un dispositif de fixation ou un boulon (10) devant un ajutage (44) de pulvérisation de poudre. Dans un autre mode de réalisation, un appareil d'enduction d'échantillons de dispositifs de fixation ou de boulons (110) filetés intérieurement, comprend un ajutage (144) de pulvérisation de poudre à va-et-vient monté sur un cylindre à air (160), un dispositif de chauffage (126) par induction ainsi qu'un bloc (112) de support refroidi par eau destiné à l'écrou (110). Dans un troisième mode réalisation, une alimentation continue en écrous (210) est acheminé par une voie (214) et une porte (282) à commande hydraulique est mise en séquence par un ajutage (244) de pulvérisation de poudre à va-et-vient, assurant une opération d'enduction continue. Les procédés d'application de revêtements aux échantillons comprennent les étapes employant ces modes de réalisation.
Patent CA-2051000-A1 (CA)
Title: Dyeing method and dyed product
Inventor: KAMATA MASAYASU
IPC: D06P1/00
Filed: 1991-09-09
Abstract: ABSTRACT OF THE DISCLOSURE      A dyeing method comprising: a process of treating a cellulose fiber textile product with cationic compound; and another process of treating the thus-treated textile product by immersing it in a dispersion containing reversibly color changeable fine particles which involve thermochromic or photochromic material in high polymer compound.
Patent CA-2056100-A1 (CA)
Title: Plasticizers and injection-molding compositions of metallic and ceramic powder materials
Inventor: HOEPFNER PAUL
IPC: B22F3/02
Filed: 1991-11-25
Abstract: Abstract of the disclosure Plasticizers and injection-molding compositions of metallic and ceramic powder materials The plasticizer for metallic and/or ceramic powder material is composed of 70 to 90 % by weight of an anhydrous glycol, such as ethylene glycol, and 30 to 10 % by weight of an alkylhydroxyalkylcellulose, such as methylhydroaxyethylcellulose.       The preparation of the plasticizer can be carried out together with the plasticization of the powder material as a single-stage process, or also in a separate process step.            The plasticizers are suitable for the preparation of injection-molding compositions, from which elastically strong components can be manufactured in turn.
Patent CA-2058183-A1 (CA)
Inventor: WEBER DIETER
IPC: C03B37/012
Filed: 1991-12-20
Abstract: In the process for the production of an optical waveguide preform, in which the cladding layer is applied as a tubular powder layer onto a cylindrical glass core rod and is densified by heating, the powder layer has a relative density of approximately 6 percent, which is increased to 25-50 percent during the stabilization process.  In order for this process to proceed without damage to the preform, the powder layer is initially heated at a low heating rate.  From approximately 150°C, the heating rate is increased until a higher temperature is reached.
Patent CA-2060651-A1 (CA)
Title: Anthelmintic non-living vaccine
Inventor: MCGILLIVERY DUNCAN J
IPC: A01N63/00
Filed: 1990-07-17
Abstract: A vaccine composition useful for the treatment of gastrointestinal round worm in mammals. The vaccine composition has as the antigenic component an approximately 31 kD proteinaceous fraction of an extract of Ostertagia circumcincta, preferably from the third larval stage. The administration to and effect of this vaccine for sheep is described.
Patent CA-2061882-A1 (CA)
Title: Superacid catalyzed hydrocracking of heavy oils and bitumens
Inventor: STRAUSZ OTTO P
IPC: C10G47/08
Filed: 1992-02-26
Abstract: "SUPERACID CATALYZED HYDROCRACKING OF                   HEAVY OILS AND BITUMENS                    ABSTRACT OF THE DISCLOSURE        A process  is  provided  for hydrocracking a heavy oil bitumen and chemically related feedstock.  The process comprises reacting said feedstock with a gaseous superacid in the presence of hydrogen with or without the use of a hydrogen transfer agent to thereby yield lower boiling point distillates.
Patent CA-2064336-A1 (CA)
Title: Process for sealing and/or priming concrete with aqueous polyisocyanate dispersions and the concrete obtained by this process
Inventor: MARKUSCH PETER H
IPC: C04B41/48
Filed: 1992-03-23
Abstract: Mo3589 A PROCESS FOR SEALING AND/OR PRIMING CONCRETE  WITH AQUEOUS POLYISOCYANATE DISPERSIONS AND   THE CONCRETE OBTAINED BY THIS PROCESS                     ABSTRACT OF THE DISCLOSURE               The present invention is directed to a process for sealing and/or priming concrete by applying to concrete an aqueous polyisocyanate dispersion which has an isocyanate content of at least 0.5% by weight, based on the weight of the polyisocyanate, and is prepared by a)   dispersing in water a polyisocyanate which has an isocyanate content of at least 12% by weight and b)   optionally reacting the dispersed polyisocyanate with i)   a primary or secondary monoamine containing at least one hydroxyl group in an amount sufficient to provide an equivalent ratio of amino groups to isocyanate groups of 0:1.0 to 0.7:1.0 and/or ii)  a polyamine having primary and/or secondary amino groups and a molecular weight of 400 or less in an amount sufficient to provide an equivalent ratio of amino groups to isocyanate groups of 0:1.0 to 0.4:1.0, provided that when components i) and ii) are both reacted with the dispersed polyisocyanate, component i) is mixed with the dispersed polyisocyanate either before or during the mixing of component ii) and the equivalent ratio of amino groups from both components i) and ii) does not exceed 0.95:1Ø The present invention is also directed to the primed and sealed concrete obtained in accordance with this process.            Mo3589
Patent CA-2066008-A1 (CA)
Title: Foam reduction in non-aqueous, liquid, heavy-duty laundry detergent containing secondary ethoxylate nonionic surfactant
Inventor: RHINESMITH ROBERT J
IPC: C11D17/00
Filed: 1992-04-14
Abstract: Abstract of the Disclosure A low foaming non-aqueous, liquid, heavy-duty, laundry detergent contains secondary alkyl ethoxylate nonionic surfactant and a silicone defoamer composition.  The order of addition of ingredients to the detergent composition affects the anti-foaming efficacy of the silicone defoamer.
Patent CA-2070152-A1 (CA)
Title: Portable advertising and display unit
Inventor: FAKHOURY JACK A
IPC: G09F13/24
Filed: 1992-06-01
Abstract: ABSTRACT OF THE INVENTION        A portable advertising and display unit comprises a base, a top, and a centrally provided elongated receptacle fitted  therebetween.    An  advertisement  or  a  displayed article may be removably disposed within the elongated receptacle.  A fluid is preferably contained withln the elongated receptacle through which air bubbles may be passed at a selectively variable rate.   Overhead and colinear lighting may be provided, and the lighting may be either conventional incandescent lighting,  neon,  laser,  or fiber optic.  A clear, semi-transparent or mirrored coaxial shell may also be fitted between the base and the top.  The unit of the present invention may be mounted either horizontally or vertically for display.
Patent CA-2072462-A1 (CA)
Title: Electrorheological fluid containing a fluorohexylalkyl functional polysiloxane copolymer
Inventor: ROWLANDS MARTIN
IPC: C10M171/00
Filed: 1992-06-26
Abstract: Abstract of the Disclosure An electrorheological fluid which is a suspension of a finely divided solid in an insulating fluid. The invention is characterised in that the insulating fluid is a high density low viscosity fluorohexylmethyl functional polysiloxane.
Patent CA-2075351-A1 (CA)
Inventor: HATANAKA TAKEFUMI
IPC: H02P21/02
Filed: 1992-08-05
Abstract: An energy-saving induction motor control apparatus maintains the operation of a motor at an optimum power factor irrespective of changes in motor load, by generating a power factor compensation value which is varied in accordance with the motor supply voltage. The motor supply voltage is controlled such as to reduce any difference between the optimum power factor value and a measured power factor value, thereby ensuring that stable operation with minimum energy consumption are achieved over a wide range of motor load values. <IMAGE>   <IMAGE>
Patent CA-2076401-A1 (CA)
Title: Apparatus for detecting the presence and the quality of a flame by detecting and analyzing electromagnetic radiation of different wavelengths
Inventor: MONTAGNA GIOVANNI
IPC: F23N5/08
Filed: 1992-08-19
Abstract: APPARATUS FOR DETECTING THE PRESENCE AND THE     QUALITY OF A FLAME BY DETECTING AND ANALYZING     ELECTROMAGNETIC RADIATION OF DIFFERENT WAVELENGTHS                  ABSTRACT OF THE DISCLOSURE     Apparatus with an element for detecting and focusing the electromagnetic radiation emitted by the flame of a burner, and with an element formed by a light-conductive bundle of fiber optics for transmitting and separating the radiation of different wavelengths, which are received and analyzed by separate sensors.
Patent CA-2077694-A1 (CA)
Title: Fishing kit
Inventor: MCHUGH JAMES A
IPC: A01K97/01
Filed: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE           There is a large number of fishing devices described in the patent  literature designed to be assembled for use and  disassembled for transport.  Many of the devices are relatively complicated and/or difficult  to  assemble and disassemble.   A simple ice  fishing  kit includes  a container for carrying the remaining elements of the  kit which include a post for mounting on the container,  a yoke pivotally mounted  in  the bifurcated upper end of the post  for  supporting  a collapsible fishing rod,  a wind blade for mounting in the upper  end of the post for supporting a reel on one end of the fishing rod  and for  movement  by  the  wind to cause jigging  of  the  bait,  and  a resilient  flag  fixed  at one end to one top arm  of  the  post  and bendable  to engage a bracket on the other arm of the  post,  whereby rotation of the yoke when a fish strikes causes release of the flag, permitting the latter to spring to an elevated position.
Patent CA-2081945-A1 (CA)
Inventor: CLARK STEVEN D
IPC: F23G7/00
Filed: 1992-11-02
Abstract: A method for operating an incinerator wherein fuel is provided into the incinerator separate from combustible waste and upon an increase in oxygen demand, initially refraining from proportionately increasing the oxygen provided into the incinerator and responding by decreasing the flow of fuel so as to control the generation of PICs without substantially raising the incinerator temperature.  The oxygen flow is increased when the fuel flowrate has been reduced to a predetermined minimum should this occur.
Patent CA-2088012-A1 (CA)
Inventor: NICOL PASCAL
IPC: C08F297/04
Filed: 1993-01-25
Abstract: Process for continuous manufacture of block copolymer in the form of impact-resistant transparent vinylaromatic resin or of vinylaromatic block elastomer, consisting in:     a) polymerising a vinylaromatic polymer in concentrated medium, b) then copolymerising the living polymer with a conjugated diene, still in concentrated medium c) then coupling the copolymer.  f
Patent CA-2099416-A1 (CA)
Title: Laser drilled fuel injector nozzles
Inventor: BAIRD RONALD J
IPC: F02M63/00
Filed: 1993-06-30
Abstract: Abstract of the Disclosure A method for fabricating a fuel injector nozzle is provided wherein a crystalline substrate is positioned in alignment with a laser having a wavelength absorbable by the substrate.  The nozzle apertures are produced by the laser independently of the crystal lattice structure and thickness of the substrate.  Preferably, a carbon dioxide laser and a single crystal sapphire substrate are used.
Patent CA-2102698-A1 (CA)
Title: Cyclic alkylidene substituted pyridine herbicides
Inventor: LEE LEN F
IPC: C07D405/06
Filed: 1992-05-28
Abstract: Fully substituted pyridines having a cyclic alkylidene substituent, useful as herbicides, compositions and methods of use thereof.
Patent CA-2106313-A1 (CA)
Title: Electric toothbrush
Inventor: HOMMANN EDGAR
IPC: A61C17/34
Filed: 1992-12-02
Abstract: An electric toothbrush comprises a handle part (1) and a push-on brush (4). From one end of the handle part (1) there projects the end of a hollow shaft (3) in which a toothbrush arbor (9) is coaxially arranged, the push-on brush (4) being adapted to be pushed on to the toothbrush arbor (9). The push-on brush (4) has a rotatable tuft of bristles which may be driven by a longitudinally reciprocating connecting rod. A gear (18) in the handle part (1) has two cams (23, 27) which are mutually phase shifted by 180·. The first cam (23) displaces the hollow shaft (3) and the second cam displaces the toothbrush arbor (9) in the opposite direction.
Patent CA-2107702-A1 (CA)
Title: Method of improving the performance of pressure-sensitive adhesive at temperatures below 0°f
Inventor: ARNWINE ALLEN C JR
IPC: C11D10/00
Filed: 1993-10-05
Abstract: ABSTRACT OF THE DISCLOSURE   A method of improving the performance of pressure-sensitive adhesives at temperatures below 0°F is disclosed. An ethylene oxide/propylene oxide block copolymer is added to the adhesive and produces improved peel strength performance.
Patent CA-2114275-A1 (CA)
Title: Process for producing liquid and, optionally, gaseous products from gaseous reactants
Inventor: JAGER BEREND
IPC: C07C1/06
Filed: 1994-01-26
Abstract: A process for producing liquid and, optionally, gaseous products from gaseous reactants comprises feeding gaseous reactants into a slurry bed of solid particles suspended in a liquid; allowing the reactants to react as they pass upwardly through the slurry bed, thereby to form liquid and, optionally, gaseous products; and separating liquid product from the solid particles by passing, in a filtration zone within the slurry bed, liquid product through a filtration medium in a first direction, so that a cake of the solid particles forms on the filtration medium.      The passage of liquid product through the filtering medium is interrupted. The filtering medium is then backflushed by passing a flushing fluid through the filtering medium in a second direction, opposite to the first direction, for at least portions of the periods that the liquid product passage is interrupted, thereby to dislodge the cake from the filtering medium.
Patent CA-2114293-A1 (CA)
Inventor: REVELL PATRICIA
IPC: C11D1/14
Filed: 1994-01-26
Abstract: A B S T R A C T            LIQUID COMPOSITIONS COMPRISING BLEACHING AND/OR HYGIENE AGENTS OF LOW AQUEOUS SOLUBILITY     The invention provides stable, aqueous, hygiene compositions comprising aqueous-insoluble or sparingly soluble organic peroxy acids can be prepared by the use of a water-immiscible solvent for the organic peroxy acid in the form of an emulsion in water.  In the context of the present invention aqueous-insoluble or sparingly soluble organic peroxy acids are those peroxy acids having a solubility in water at 10°C of less than 100ppm. Compositions according to the invention comprise: at least 100 ppm of a water insoluble or sparingly soluble hygiene agent (a), and, at least 0.1% of a water-immiscible solvent for (a), said solvent comprising the dispersed phase of a solvent/water emulsion.  Typically the bleaching agent (a) is an organic peroxy acid.  Typically, the peroxy acid is an imido peroxy-carboxylic acid, most preferably e-N-N-phthaloyl-amino-peroxycaproic acid (PAP).
Patent CA-2115244-A1 (CA)
Title: Cold water soluble films and film forming compositions
Inventor: IBRAHIM NAGUI I
IPC: C08L1/00
Filed: 1992-08-07
Abstract: The rate of disintegration in cold water of water soluble packaging films is improved by incorporating into a film forming polymer composition, to form a dry blend or aqueous dispersion, a substantially water insoluble cellulose material prepared from alkali metal salts of carboxy(lower alkyl) cellulose or hydroxy(lower alkyl) cellulose. The increased disintegration is achieved without loss of film stability and, in some cases, the film stability is improved.
Patent CA-2118641-A1 (CA)
Title: Preparation of titanium(iii) coordination complexes
Inventor: STRICKLER JAMIE R
IPC: C07F7/00
Filed: 1994-03-09
Abstract: PREPARATION OF TITANIUM(III) COORDINATION COMPLEXES    Abstract of the Disclosure Ti(III) coordination complexes with ethers are prepared by the steps of (a) forming an ether complex of a Ti(IV) salt by adding a stoichiometric excess of an ether to said salt, and then (b) reducing said complex with an organometallic reducing agent such as an aluminum alkyl or a lithium compound to form a Ti(III)-ether coordination complex.
Patent CA-2122241-A1 (CA)
Inventor: BERG CHARLES J JR
IPC: A61F15/00
Filed: 1992-11-05
Abstract: Un emballage de serviette sanitaire (34) et une conception de languette adhésive pour ledit emballage sont divulgués. Se prêtant à une grande variété de designs, la languette adhésive peut être appliquée à l'emballage simultanément avec son propre élément d'attache pour former ainsi un système complet de fermeture. L'emballage de serviette sanitaire peut aussi être muni d'une languette ou pochette (53) de divers types, qui servirait au moment de le jeter.
Patent CA-2123295-A1 (CA)
Title: Air filter for internal combustion engines
Inventor: ANDRESS HEINZ
IPC: F02M35/08
Filed: 1994-05-10
Abstract: An air filter is provided herein for an internal combustion engine which has a filter insert arranged in a housing having a clean air outlet and an unfiltered air inlet which is provided with a screen. The housing also includes an auxiliary unfiltered air inlet which is closed by a normally-closed flap.   The flap opens only under the influence of a negative pressure which is generated in the filter housing if the screen becomes clogged, e.g., because of snow or ice which is entrained in the air stream, so that unfiltered air can enter the housing through the auxiliary air inlet.
Patent CA-2123349-A1 (CA)
Title: Surface Treatment Process for Liquid Crystal Cell Substrates
Inventor: SMITH WILLIS H JR
IPC: G02F1/1337
Filed: 1994-05-11
Abstract: An electrically-conducting substrate coated with silicon dioxide is contacted with alcohol vapors from a source (12) by heating the substrate (16) in a microwave oven. The substrate and source of alcohol are contained in a vessel (10), on which a vacuum is optionally pulled during the heating. The process results in approximately 100 fold reduction in processing time from the prior art time of several hours to several minutes. The process may be used in either inducing perpendicular alignment or parallel alignment of liquid crystals in the cell.