baber/WOPTO huggingface dataset:
Patent CA-2081284-A1 (CA)
Title: Process for preparing sugar esters
Inventor: THORNTHWAITE DAVID W
IPC: C07B61/00
Filed: 1992-10-23
Abstract: ABSTRACT            Process for preparing 1-acyl substituted acetylated sugars from fully acetylated sugars in a one step reaction.
Patent CA-2081465-A1 (CA)
Title: Dispersant compositions for subterranean well drilling and completion
Inventor: BLOYS JAMES B
IPC: C09K8/46
Filed: 1991-04-03
Abstract: ABSTRACT OF THE DISCLOSURE    A dispersant for drilling fluids, spacer fluids, completion fluids, cement slurries and mixtures of drilling fluids and cement slurries used for drilling and cementing subterranean wells.
Patent CA-2082550-A1 (CA)
Title: Shaped articles which contain active compounds and are based on elastomeric polyether block amides which can be processed as thermoplastics, processes for their production and their use for control of pests
Inventor: BRANDT HEINZ-DIETER
IPC: C08L77/00
Filed: 1992-11-10
Abstract: Shaped articles which contain active compounds and are based on elastomeric polyether block amides which can be processed as thermoplastics, processes for their production and their use for control of pests A b s t r a c t The present invention relates to shaped articles which contain active compounds and are characterised in that they comprise, as carriers, thermoplastic elastomers based on polyether block amides, as well as customary additives if appropriate, and to processes for their production and to their use for control of pests in animals.     Le A 28 736
Patent CA-2083553-A1 (CA)
Title: Immunogen composition
Inventor: SEKI KUNIHARU
IPC: A61K9/16
Filed: 1992-11-23
Abstract: Abstract An orally or nasally administered immunogen composition comprising an immunogen capable of immunizing mammals and fats and oils of formula (I):                                             (I) wherein R1, R2, and R3 respectively mean a C6-24 residue of saturated or unsaturated fatty acid, which can exert an enhanced immunization of mammals.
Patent CA-2085964-A1 (CA)
Title: Ball triplan constant velocity joint centering spring
Inventor: SCHNEIDER DEAN J
IPC: F16D3/20
Filed: 1992-12-21
Abstract: A triplan constant velocity joint has an outer member, an inner member, shoes, rolling elements between the shoes and the outer member, and a positioning spring to position the rolling elements in relation to the inner member. The spring has a body with first and second arms for retaining the rolling elements with respect to the inner member. The spring also includes a retaining mechanism which both secures the spring to the inner member and provides a restoring force to position the rolling elements in relation to the inner member.
Patent CA-2086600-A1 (CA)
Title: Apparatus for drying a moist particulate material with superheated steam
Inventor: JENSEN ARNE SLOTH
IPC: F26B17/10
Filed: 1991-07-08
Abstract: An apparatus for drying a moist particulate material having a non-uniform particle size with superheated steam, which apparatus comprises a cylindrical part (2) wherein a number of parallel, substantially vertical elongated chambers (6) is located in ring form, one or more of the chambers (7) having a closed bottom and the remaining chambers (6) having a steam-permeable bottom (8), the adjacent chambers being interconnected, and an upper conical part (3) which is also divided into chambers (6) and which at the lower end is connected with the chambers (6) of the cylindrical part (2) of the apparatus, the chambers (6) of the conical part (3) of the apparatus being divided into smaller chambers (10) by means of inclined guide plates (11), wherein at least part of the inclined guide plates in the conical part (3) of the apparatus is provided with means for heating the plates.
Patent CA-2087688-A1 (CA)
Title: Procede et systeme de test du fonctionnement et/ou de la presence d'elements connectes en parallele
Inventor: CASSAIGNE PIERRE
IPC: G01R31/302
Filed: 1993-01-20
Abstract: 11 PROCEDE ET SYSTEME DE TEST DU FONCTIONNEMENT ET/OU DE LA PRESENCE D'ELEMENTS CONNECTES EN PARALLELE La présente invention concerne un un procédé et un système de test du fonctionnement et/ou de la présence d'élements connectés en parallèle. Les composants (3) à tester sont susceptibles d'être dans deux états générateurs d'un rayonnement thermique différent. Pour le cas de diodes testées en direct, ces deux états correspondent à l'état passant et à l'état bloqué. Le procédé selon l'invention propose d'alimenter l'ensemble avec un signal rectangulaire (2') de fréquence f et d'amplitudes a et b choisies afin de placer cet ensemble dans une succession d'états prédéterminée, choisis à partir des deux états. Le procédé consiste alors à détecter le rayonnement thermique issu de chaque élément, de le transformer en un signal exploitable, puis de vérifier le synchronisme de ce signal avec la fréquence f. Cette vérification permet, suivant le fonctionnement attendu des composants testés, de conclure sur la panne ou le bon fonctionnement d'un composant, et/ou sur sa présence dans l'ensemble.
Patent CA-2089913-A1 (CA)
Title: Cryogenic air separation system for producing gaseous oxygen
Inventor: DRAY JAMES ROBERT
IPC: F25J3/04
Filed: 1993-02-19
Abstract: A cryogenic air separation system employing a product boiler coupled with a liquid air supply whereby liquid oxygen as effectively vaporized to produce gaseous oxygen product while providing for steady state operation of the cryogenic air separation plant without significant refrigeration loss.
Patent CA-2090503-A1 (CA)
Title: Cryogenic rectification system with argon heat pump
Inventor: HOWARD HENRY E
IPC: F25J3/04
Filed: 1993-02-26
Abstract: CRYOGENIC RECTIFICATION SYSTEM      WITH ARGON HEAT PUMP       ABSTRACT A cryogenic rectification system wherein condensed heat pump fluid is subcooled in the upper portion of an argon column, cools incoming feed, and is compressed and then condensed against cryogenic rectification plant bottoms for reboil thus improving reflux ratios and increasing argon recovery.
Patent CA-2090905-A1 (CA)
Title: Thermoplastic microspheres, process for their preparation and use of the microspheres
Inventor: LINDGREN JOHAN G
IPC: C08F2/44
Filed: 1993-03-03
Abstract: Abstract Thermoplastic  microspheres,  unexpanded or expanded, which contain chlorine-free  aliphatic  fluorocarbons or fluoro-hydrocarbons.  Chlorine-free   aliphatic  fluorocarbons  or fluorohydrocarbons are used as blowing agent at the produc-tion  of  expandable  thermoplastic  microspheres. Expanded microspheres containing these blowing agents have  very low densities.  The  use  of  the  specific blowing agents also gives other advantages, especially with regard  to fire and insulation  properties   and  the   microspheres  are  thus especially suitable for use  in  fire-resistant paints and insulation materials.
Patent CA-2091904-A1 (CA)
Inventor: BERGMANN WERNER
IPC: D21H19/58
Filed: 1991-08-27
Abstract: ABSTRACT            The coating layer of paper coated on one face only comprises a composition that contains 20 to 60 wt % of a film-forming synthetic resin binder and natural binder applied by cast coating on a base paper provided with a coating of synthetic resin binder and/or natural binder as well as mineral pigments, which is glazed after the coating is applied.
Patent CA-2092156-A1 (CA)
Title: Optical amplifier with improved linearity
Inventor: TIEMEIJER LUKAS F
IPC: H04B10/572
Filed: 1993-03-22
Abstract: Optical amplifier which utilizes a solid-state laser (2) as an amplifying element. To improve the linearity of the optical amplifier a complex compensation mechanism has been necessary in the state of the art. In the optical amplifier according to the invention a similar linearity improvement may be achieved by feeding the solid-state laser (2) not from a current source, as is customary, but from a voltage source (4).
Patent CA-2094389-A1 (CA)
Inventor: PUTZ ANTIDE
IPC: E21B43/22
Filed: 1992-08-21
Abstract: 2094389 9304266 PCTABS00161 La présente invention concerne une méthode de réduction de la rétention d'un agent de déplacement à base de polymères, injecté dans une matrice rocheuse contenant des hydrocarbures. La méthode consiste à traiter la matrice par une solution adsorbante comportant des phosphates ou des sulfites. Le traitement se fait en présence des cations pour augmenter l'action de la solution adsorbante et contrôler la stabilisation de la roche. L'invention est appliquée à la récupération secondaire d'hydrocarbures par injection d'un fluide de déplacement dans une roche réservoir.
Patent CA-2096029-A1 (CA)
Inventor: COUSINEAU RONALD L
IPC: A62C31/02
Filed: 1993-05-11
Abstract: ABSTRACT OF THE DISCLOSURE    A fire sprinkler head having a body with a liquid flow channel  extending  therethrough.    The  sprinkler head  is characterized by venturi air injector ports extending through the body and intersecting the liquid flow channel.  Air is drawn through the venturi air injector ports by liquid flowing through the liquid flow channel to create a turbulent spray.
Patent CA-2096338-A1 (CA)
Title: Modular panel wall structure
Inventor: DEL CASTILLO VON HAUCKE JUAN M
IPC: E04B2/74
Filed: 1992-10-14
Abstract: A B S T R A C T            Modular  wall  panel  structure  comprising  panels having  a  supporting  skeleton  of  stiles,  rails, and  mullions   of   substantially  uniform  hollow rectangular section and wherein each vertical margin of a panel includes two spaced stiles and wherein each  panel  includes  two  spaced  bottom  rails  as well as a top rail and two spaced mullions extending vertically from the top rail to an uppermost bottom rail.
Patent CA-2096423-A1 (CA)
Title: Optical device
Inventor: JENKINS RICHARD M
IPC: G02F2/00
Filed: 1991-12-02
Abstract: An optical device (10) incorporates a rectangular multimode waveguide (14) with an input aperture (22), and two output optical fibres (26 and 28) with respective input apertures (30 and 32). An input light beam (34) of Gaussian transverse intensity profile is focussed to a beam waist (36) at the centre of the aperture (22).  The beam phase and waist radius w are arranged such that the light beam (34) excites symmetric modes in the waveguide (14). Modal dispersion along the waveguide (14) produces two electric field intensity maxima of similar magnitude centred on the fibre input apertures (30 and 32). This provides the beamsplit-ter function of division of input radiation into two similar intensity outputs. Devices of the invention may be arranged to divide input beams into more than two output beams. The invention may also provide a light beam combiner.
Patent CA-2099148-A1 (CA)
Title: Process and apparatus for production of toilet paper rolls having no core
Inventor: ISHIZU NOBORU
IPC: B65H19/22
Filed: 1993-06-25
Abstract: Rolls of toilet paper are produced by winding a paper web around each of a plurality of air permeable cylindrical cores each having a fixed, outer diameter while applying a liquid to only a leading portion of each web so that wound webs each having a wet inner portion are formed. After drying the wound webs to integrally bind the inner portion, the core is separated from each of the wound webs. The above method is carried out using an apparatus including a winding device having a shaft to which the cylindrical cores are detachably fitted in a row, a drive device for rotating the cores supported by the shaft and to wind a paper web around each of the cores, an applying device for wetting only a leading portion of each to form a wet inner portion, a releasing device for releasing the wound web-bearing cores from the shaft to obtain arrays of the released, wound web-bearing cores, a drying device for drying the wet inner portion of each wound web, and a separating device for separating the wound webs from the cores. In one embodiment a fusible powder adhesive is applied to only a leading portion of the web.
Patent CA-2099493-A1 (CA)
Inventor: FUISZ RICHARD C
IPC: C11B9/00
Filed: 1992-10-30
Abstract: A solid delivery system for rapid release of hydrophobic liquids such as oleaginous materials, flavor oils, mineral oil and the like comprising a water-soluble flash-flow-formed matrix containing a micronized dispersion of a substantially hydrophobic liquid.
Patent CA-2102675-A1 (CA)
Title: Metallized film structure and its production
Inventor: CHANG WEI H
IPC: B32B15/08
Filed: 1993-11-08
Abstract: A metallized film combination of an oriented polymeric substrate layer having on one surface thereof a coating of a blend of (a) a vinyl alcohol homopolymer or copolymer and (b) a vinylidene chloride copolymer, the coating blend having a metal layer thereon. The method involves coating the substrate after the substrate has been machine direction oriented and before the combination is transverse direction oriented followed by TD orientation and finally by depositing a metal layer on the blend surface.
Patent CA-2103313-A1 (CA)
Title: Device and method for producing a composite thread
Inventor: RONCATO GIORDANO
IPC: B29B15/12
Filed: 1993-11-17
Abstract: The invention relates to a method for the manufacture of a composite yarn made of glass and organic material. According to the invention, continuous filaments of thermoplastic organic material are mingled, in the form of a ribbon, with a bundle or ribbon of glass filaments, with a speed (rate) of the thermoplastic filaments, during their penetration into the bundle or ribbon of glass filaments, greater than the rate of stretching (drawing) of the glass filaments. The invention also provides devices for the implementation of the method. <IMAGE>
Patent CA-2103834-A1 (CA)
Title: Process for preparing precipitated silicas
Inventor: CARTWRIGHT SIMON
IPC: C01B33/14
Filed: 1993-08-11
Abstract: Abstract Process for preparing precipitated silicas A heated sodium silicate solution is partially neutralised by a first acid addition, the slurry is then allowed to age and a second  acid  addition  achieves  the  completion  of  the neutralisation of the heated sodium silicate solution.   The slurry is then filtered, washed and dried.
Patent CA-2104295-A1 (CA)
Inventor: REILLY JAMES W
IPC: C10G65/08
Filed: 1992-02-11
Abstract: A process for producing diesel fuel from a diesel hydrocarbon feed. Hydrogen is fed concurrently with the feed to a first hydrogenation zone (16) in the presence of a hydrogenation catalyst (22). Liquid effluent from the first hydrogenation zone is then passed to a second hydrogenation zone (18), wherein the liquid effluent is contacted countercurrently with hydrogen in the presence of a hydrogenation catalyst (23). Preferred hydrogenation catalysts are those comprising non-noble metals in the first hydrogenation zone, and may comprise noble or non-noble metals in the second hydrogenation zone.
Patent CA-2104922-A1 (CA)
Title: Image processing apparatus
Inventor: TAKAHASHI MITSUHIRO
IPC: G09G5/06
Filed: 1993-08-26
Abstract: ABSTRACT OF THE DISCLOSURE   The colors of a plurality of images are defined using color pallet data.  Predetermined digital color data are stored in a memory is a color pallet table.  The color pallet data are converted to the corresponding digital color data stored in the table.  The memory contents are addressed using an offset address (relative address) computed for each image using the color pallet data and a relative address offset.
Patent CA-2105583-A1 (CA)
Inventor: LAHIJANI JACOB
IPC: B29C48/05
Filed: 1992-03-23
Abstract: Brittle fibers such as ceramic or carbon fibers are protected by a shroud of thermoplastic material surrounding the core. Such enshrouded yarns facilitate formation of fiber preforms used in the preparation of composite materials.
Patent CA-2105722-A1 (CA)
Title: Procedure and production pipe for production of oil or gas from an oil or gas reservoir
Inventor: BREKKE KRISTIAN
IPC: E21B47/12
Filed: 1993-09-08
Abstract: Method and production pipe for production of oil or gas from a well in an oil and/or gas reservoir, or injection of fluids into a well in an oil and/or gas reservoir, comprising a production pipe (1) with a lower drainage pipe (2). The drainage pipe (2) is divided into sections (3) with one or more inflow-restriction devices (4) which control the flow of oil or gas from the reservoir into the drainage pipe on the basis of calculated loss of friction pressure along the drainage pipe, the reservoir's calculated productivity profile, and the calculated inflow of gas or water.
Patent CA-2108750-A1 (CA)
Title: Metal halide arc discharge lamp having short arc length
Inventor: MUZEROLL MARTIN E
IPC: H01J61/34
Filed: 1993-10-19
Abstract: Abstract of the Disclosure METAL HALIDE ARC DISCHARGE LAMP     HAVING SHORT ARC LENGTH     A metal halide arc discharge lamp includes a sealed light-transmissive outer jacket, a light-transmissive shroud located within the outer jacket and an arc tube assembly located within the shroud.  The arc tube assembly includes an arc tube, electrodes mounted within the arc tube and a fill material for supporting an arc discharge.  The electrodes have a spacing such that an electric field in a range of about 60 to 95 volts per centimeter is established between the electrodes. The diameter of the arc tube and the spacing of the electrodes are selected to provide an arc having an arc diameter to arc length ratio in a range of about 1.6 to 1.8.  The fill material includes mercury, sodium iodide, scandium tri-iodide and a rare gas, and may include lithium iodide.  The lamp exhibits a high color rendering index, high lumen output and high color temperature.
Patent CA-2114800-A1 (CA)
Inventor: CURIEL DAVID
IPC: A61K47/68
Filed: 1992-09-28
Abstract: Abstract Conjugates in which a virus is bound via an antibody to a substance having an affinity for nucleic acid, for transporting gene constructs into higher eucaryotic cells.  Complexes of the conjugates and nucleic acid are internalised in the cell, possibly with the co-operation of a cell-type-specific internalising factor, whilst the virus as part of the complex brings about the internalisation and the release of the contents of the endosomes, in which the complexes are located after entering the cell.  Pharmaceutical preparations in which the nucleic acid is a therapeutically active gene construct, particularly for use in gene therapy, and transfection kits.
Patent CA-2117366-A1 (CA)
Inventor: KONDOFF PETE J
IPC: A47B83/02
Filed: 1992-02-04
Abstract: A patio or outdoor type table and bench unit comprising of a single table top, several vertical support leg members, nestable in an interlocking relationship with the table top, and an equal number of bench type seats which orbit the table top. The bench type seats also nest within the support leg members. When locked into place, the table and bench seat assembly becomes a single, independent, structurally strong unit. A hole in the centre of the table top may also be incorporated for reception of an umbrella or the like. The uniqueness of this instant invention is that the various components, when assembled, approach the shape of a hemisphere, with each member becoming both functional as well as structural, adding to the strength, dimensional stability, and structural integrity of the entire unit.
Patent CA-2120630-A1 (CA)
Title: Method and apparatus for preventing a back flow of oral contaminants in a low volume suction line of a dental saliva ejector
Inventor: WHITEHOUSE RONALD L S
IPC: A61C17/08
Filed: 1994-03-30
Abstract: A method of preventing a back flow of oral contaminants in a low volume suction line of a dental saliva ejector is described. This method consists of the single step of placing a vacuum release aperture through a tubular sidewall of a saliva ejector tip. The aperture is spaced from a mouthpiece of the saliva ejector tip such that when the mouthpiece is inserted into a patient's mouth, the patient's mouth will not block the aperture.
Patent CA-2123876-A1 (CA)
Title: Optical disc addressing devices, a method of use thereof
Inventor: MOHAPATRA SARAT K
IPC: G11B7/12
Filed: 1992-11-09
Abstract: A method reading an optical disc such that a light beam is launched from a laser diode into an array of waveguides that are serially demultiplexed or addressed in parallel onto a multiplicity of data tracks, such that the number of data points read, simultaneously or sequentially across the width of the disc are limited by the rotational speed of the optical disc, and an optical head using an array of waveguides for the optical guidance of the light beam, such that the array of waveguides is disposed on a substrate and wherein the light beam can be switched by a switching means between separate channels in the array by means of an applied potential; an error tracking channel, such that when the error tracking channel detects the misalignment of the optical head, a signal generated from the error tracking channel causes the optical head to realign; and optionally, a dump channel, such that light directed into the dump channel is directly radiated into the substrate, or through the dump channel and then into the substrate.
Patent CA-2124430-A1 (CA)
Title: Process for the enantioselective synthesis of alkylated oxindoles used as intermediates in the preparation of physostigmine
Inventor: LEE THOMAS B K
IPC: C07D209/10
Filed: 1994-05-26
Abstract: ABSTRACT   This invention relates to a process for the preparation of optically pure alkylated oxindoles which are useful in the preparation of enantiomers of physostigmine and physostigmine-like compounds having pharmaceutical activity.
Patent CA-2124757-A1 (CA)
Inventor: HELINE TURE A JR
IPC: G01R27/02
Filed: 1994-05-31
Abstract: A self-contained, hand-held device for testing an aircraft helmet communication system including a microphone and earphones in which a selection switch on the housing of the device is movable from an off position to a talk-through position at which the microphone is connected to both the earphones and a volume indicator on the housing and to a selftest position in which actuation of a pushbutton switch on the housing applies the output of an oscillator both to the volume indicator and a circuit having a voltage divider made up of a potentiometer and a fixed resistance to provide a self-test signal which energizes an  illuminable  element  on  the  housing  if  the  device  is functioning properly and to an earphone impedance test position at which the output of the oscillator is applied to a circuit having a voltage divider made up of the potentiometer and the earphones to produce an earphone impedance-test signal which energizes the illuminable element if the earphone impedance is of the correct value.   The potentiometer is adjustable from outside the housing.