baber/WOPTO huggingface dataset:
Patent CA-2042183-A1 (CA)
Title: Absorbent polymers, their manufacturing process and their use
Inventor: MALLO PAUL
IPC: C08K3/36
Filed: 1991-05-09
Abstract: TITLE of the INVENTION            "New  absorbent  polymers, their  manufacturing  process  and their use"     TEXT of ABSTRACT     Very  absorbent, cross-linked, hydrophilic polymers,  in the form of micropearls, insoluble in water, based on  silica and acrylic acid partially salified by an alkali metal, their manufacturing  process and their use, notably,  as  absorbent compounds.
Patent CA-2043223-A1 (CA)
Title: Method of preventing polymer scale deposition and polymer scale preventive agent used therefor
Inventor: SHIMIZU TOSHIHIDE
IPC: C08F2/00
Filed: 1991-05-24
Abstract: ABSTRACT OF DISCLOSURE          A method of preventing polymer scale deposition during polymerization of a monomer having an ethylenically double bond in a polymerization vessel, comprising the step of carrying out said polymerization in a polymerization ves-sel of which the inner wall surface has a coating compris-ing a water-soluble polysaccharide; and a polymer scale preventive agent comprising polysaccharide.  By use of the method or agent, deposition of polymer scale can be effec-tively prevented; in addition, polymers with a high white-ness can be prepared.  Moreover, the scale preventive agent used has no poisonousness or the like and is highly safe.
Patent CA-2043490-A1 (CA)
Title: Method and apparatus for machining a differential carrier
IPC: B23B29/034
Filed: 1991-05-29
Abstract: METHOD AND APPARATUS FOR MACHINING A DIFFERENTIAL CARRIER                            ABSTRACT         A machine tool and method for simultaneously boring, facing and back boring three bores in a differential carrier with three tools that rotate coaxially with their spindle axes.  Each tool has a first slide at its free end that carries a first cutting insert for back boring a first diameter and then generating a radial face that serves as a bearing seat on the differential carrier.  Each tool also has a second slide carrying a second insert for boring a second diameter.  The construction, arrangement and movement of the two slides are correlated with each other to maintain the tool in balance during extension and retraction of both slides.  In the preferred embodiment the first insert must be retracted when it is advanced into the carrier, extended to back bore and then retracted to generate a radial face.  The second insert is at the same location circumferentially of the tool. One insert is retracted while the other insert is extended, and vice versa, to maintain the tool in balance.  In this embodiment, the travel of the first slide to back bore and generate is relatively large.  Hence, for similar slides the movement of the second slide to offset the movement of the first slide is greater than would otherwise be required to bore the second diameter and clear the carrier when the tool is retracted.
Patent CA-2049315-A1 (CA)
Title: Ink jet nozzle/valve, pen and printer
Inventor: DENNE WILLIAM A
IPC: B43K5/18
Filed: 1990-03-30
Abstract: An ink printer or a pen has a nozzle or valve (4) formed by an orifice in an elastic material (1), and the orifice comprising a slit or hole (9) in the elastic material deformable to cause the slit or hole to open or close to eject ink (2) under pressure. The printer preferably has plural, closely spaced nozzles and actuators in the form of a piezoelectric unimorph (10).
Patent CA-2050753-A1 (CA)
Title: Composite catalytic converter
Inventor: WHITTENBERGER WILLIAM A
IPC: F01N3/24
Filed: 1991-09-05
Abstract: ABSTRACT     There is provided a composite catalytic converter for removing pollutant  materials from an exhaust gas stream.          The converter is composed of all electrically heatable catalytic converter and a conventional ceramic catalytic converter in juxtaposed or embedded axial relationship whereby axial movement in a downstream direction of the electrically heatable catalytic converter core is resisted.
Patent CA-2051889-A1 (CA)
Title: Container closures and processes of making them
Inventor: WHITE STEVEN A C
IPC: C08L23/22
Filed: 1991-09-19
Abstract: Bottle gaskets are provided from a thermoplastic composition comprising a homogeneous blend of butyl rubber pith other thermoplastic polymer. The gaskets provide an effective seal at a moderate pressure but permit venting at a higher pressure. They can be made by inserting molten heated thermoplastic material into the bottle cap and moulding it in the cap and cooling it to form the gasket.
Patent CA-2053443-A1 (CA)
Title: Process for the treatment of flue particulates
Inventor: FREY RUDOLF
IPC: C04B20/02
Filed: 1991-10-15
Abstract: INVENTOR:   RUDOLF FREY INVENTION:  PROCESS FOR THE TREATMENT OF FLUE PARTICULATES              ABSTRACT OF THE DISCLOSURE              Fly ash from incineration plants is treated with an acidic aqueous solution for the purpose of removing heavy metals. The residual solid matter is filtered. The filtration residue is treated with a precipitating agent for heavy metals. The thereby obtained inert residue can be directly dumped.
Patent CA-2053844-A1 (CA)
Inventor: FUKUDA MASAHIRO
IPC: H04N7/30
Filed: 1991-10-21
Abstract: An image data processing apparatus for fast coding and reconstruction continuous-tone image data parallelly processes DCr coefficients in pipelined quantization and dequantization An image data compressing apparatus comprises an orthogonally transformer for obtaining a transform coefficient matrix by two-dimensionally orthogonally transforming continuous-tone image data, a quantizer for quantizing respective elements of a coefficient matrix, a signal producer for outputting the serial quantized coefficients by attaching a termination signal to the tail end, and a coder for outputting codes corresponding to significant coefficients. An image data reconstructing apparatus comprises a decoder for decoding input codes to the coefficient codes and succession length codes, a coefficient code reverter for reverting the coefficient codes into significant coefficients. a succession length code reverter for reverting the succession length codes into insignificant ccefficient succession length, a memory for storing a data pair of a significant coefficient and an insignificant coefficient succession length, a dequantizer for obtaining appropriate transform coefficients by dequantizing significant coefficients in data pairs, and an inverse orthogonally transformer for two-dimensionally inverse-orthogonally transforming the transform coefficient matrix and for outputting the tranforming result as image data.
Patent CA-2054696-A1 (CA)
Title: Mecanisme capteur rotatif optique mecanique pour rouleau de ruban
Inventor: ROBERTSON JEFFREY C
IPC: G03B27/58
Filed: 1991-04-03
Abstract: Mécanisme optique/mécanique détecteur de la rotation d'une bobine pour bande enroulée (12) montée pour tourner dans une cartouche (10). Ledit mécanisme comporte une bride (20) formée sur la bobine (12), un dispositif d'actionnement (54, 56) disposé sur la bride (20), ainsi qu'un détecteur optique (L, 46) situé à l'extérieur (44) de la cartouche (10) et comprenant un faisceau lumineux (L) servant à détecter la rotation progressive de la bride (20) et de la bobine (12). Un indicateur mobile (52) formé sur la face extérieure de la cartouche (10) actionne le détecteur optique (L, 46) en réponse à un déplacement de l'indicateur (52) entre une première position (Fig. 6), dans laquelle le faisceau lumineux (L) est interrompu, et une seconde position (Fig. 7) dans laquelle le faisceau lumineux n'est pas interrompu. Un dispositif d'accouplement (58-71) comprenant un couvercle étanche à la lumière (64) couple ledit dispositif d'actionnement (54, 56) de la bride à l'indicateur (52) afin de déplacer celui-ci entre sa première position (Fig. 6) et sa seconde position (Fig. 7).
Patent CA-2054812-A1 (CA)
Title: Device for preservation of live marine products
Inventor: VALLEE LAURENT
IPC: B63B35/26
Filed: 1991-11-01
Abstract: ABSTRACT OF THE DISCLOSURE         A device for preserving live marine products.  The device comprises a holding tank which contains water for storing the live products.  An indirect cooling system removes heat from the water, maintaining it at a desirable temperature.  The holding tank is disposed aboard a marine vessel and the cooling system is driven by the vessel's existing hydraulic system.  The device may further include filtering mechanisms for removing organic toxins from the water, and mechanisms for oxygenating the water.  The components of the device which contact the water are manufactured from materials which tend to resist salt water corrosion and which also resist deterioration and consquent contamination of the water.
Patent CA-2056619-A1 (CA)
Title: Method of inactivation of viral and bacterial blood contaminants
Inventor: HACKETT ROGER
IPC: A61K35/14
Filed: 1991-04-16
Abstract: A method is provided for inactivating viral and/or bacterial contamination in blood cellular matter, such as erythrocytes and platelets, or protein fractions. The cells or protein fractions are mixed with chemical sensitizers and irradiated with, for ex-ample, gamma or X-ray radiation.
Patent CA-2057175-A1 (CA)
Inventor: CARTMELL JAMES V
IPC: A61B5/274
Filed: 1991-12-06
Abstract: A medical electrode assembly for an electrocardiograph or similar device is provided.  The medical electrode assembly comprises an electrolyte pad having an electrolyte layer which may be secured to the skin of a patient and a backing member made from a nonconductive material being coextensively superposed directly onto the electrolyte layer.  The electrolyte pad is used in conjunction with a reusable lead wire connector having at least one surface contacting the electrolyte layer of the electrolyte pad.  The reusable lead wire connector includes a set of jaws which may be compressed together for contacting the electrolyte pad.  The set of jaws may be formed of a nonconductive binder material having a conductive filler dispersed therein.  A metallic conductive material, such as a silver/silver chloride system, is superposed over the nonconductive binder material.
Patent CA-2057704-A1 (CA)
Inventor: BERGMAN RONALD E
IPC: E01H1/10
Filed: 1991-12-16
Abstract: The present invention provides a hand held, readily portable power sweeping tool.  The tool includes an elongate boom having a power generation means disposed at one end thereof and a power sweeping means disposed at the other end.   Power transmission means extends between the power generation  means  and  the  power  sweeping  means  for transmitting power generated by the power generation means to the sweeping means.  The sweeping means comprises a pair of drums mounted for rotation by the power transmission means,  the drums  including a plurality of pliant  fins extending radially outwardly therefrom.
Patent CA-2060714-A1 (CA)
Inventor: BAIN ROY L
IPC: E02F3/815
Filed: 1992-02-05
Abstract: A wear insert for protecting a working element operating in an abrasive environment comprises a pair of spaced apart legs which define a gap for receiving a mounting flange of the protected working element. The wear element wraps around the mounting flange and interlocks with cooperative flanges of the working element to securely hold the insert to the working element.
Patent CA-2061002-A1 (CA)
Title: Photo-curable resin composition
Inventor: MIYAMOTO RYOICHI
IPC: C08F290/14
Filed: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE:          A photo-curable resin composition containing a polycarbonate having a number average molecular weight of between 200 and 10,000 and containing at least two (meth)acrylate groups in the molecule, or a diglycidyl phthalate (meth)acrylate, an organic polymer fine powder having an average particle diameter of between 1 µm and 50 µm and a photo-radical polymerization initiator; and a coating liquid to be applied to a resin pattern.  This resin composition is useful for preparing a clasp pattern exhibiting a theoretical form for retention, durability, etc., i.e., a cast clasp basic pattern, for producing, by a lost wax method, a east clasp which is a metal component for holding a partial denture, retaining it and supporting it.
Patent CA-2062271-A1 (CA)
Title: Derivatives of substituted imidazol-2-one and process for their preparation
Inventor: VARASI MARIO
IPC: C07D451/02
Filed: 1992-03-04
Abstract: Derivatives of 1-phenyl-3-azabicycloalkylimidazolidin-2-ones are provided of general formula (I)   in which inter alia R3 represents a group (see formula I and II) wherein n is an integer of 1 or 2 and R8 is hydrogen, C1-C6 alkyl unsubstituted or substituted by phenyl, C2-C4 alkenyl, C2-C4 alkynyl, formyl or C2-C6 alkanoyl; and the pharma-ceutically acceptable salts thereof, which are useful in the treatment of CNS disorders, gut motility disorders, emesis and migraine, as cognition activators, anti-drug addition agents and analgesic.
Patent CA-2063004-A1 (CA)
Inventor: SANDERSON JOHN R
IPC: C10M107/10
Filed: 1992-03-13
Abstract: ABSTRACT (D# 80, 987-F) An  improved process  is disclosed for preparing synthetic lubricant base stocks.  Synthetic lubricant base stocks are prepared in good yield by oligomerizing linear olefins using a catalyst comprising a super-dealuminated Y-zeolite.
Patent CA-2067254-A1 (CA)
Inventor: SAKAMOTO SEIJI
IPC: C08K7/00
Filed: 1992-04-27
Abstract: [Abstract of the Disclosure]     A novel biaxially stretched polyester film having excellent transparency and slipperiness is disclosed. The biaxially stretched polyester comprises a polyester composition which exhibits a film haze of not more than 1 % after it is made into a film having a thickness of 100 µm and 50-500 ppm (on the basis of the weight of monodispersed cross-linked high polymer particles having an average particle diameter of 0.8-1.4 µm and exhibits a deformability of 1.2-5.0 in a biaxially stretched polyester film.
Patent CA-2070075-A1 (CA)
Title: Twin-wire former for a paper making machine
Inventor: KRAFT WILFRIED
IPC: D21F9/00
Filed: 1992-05-29
Abstract: A twin-wire former for a paper machine having two endless loop wires, a wire support frame and a head box.  The web forming zone leading from the entrance slot, which is at the breast roll in one wire loop and the forming roll in the other wire loop, is inclined at an angle of 30° to 50° to the horizontal.  The wire support frame has the shape of an inverted U with a front support arranged upstream of the head box, a rear support arranged downstream of the headbox and an upper beam which connects the upper ends of the front and rear supports to each other.  A lower beam is located within the loop of the lower wire and extends to both of the forward and rearward sides of the rear support with one end extending into the U-shaped frame while the other end extends at least approximately up to the remote end of the loop of the lower wire. At least one water removal element of the upper wire is suspended from the upper beam.  At least one water removal element of the lower wire rests on the lower beam.
Patent CA-2070245-A1 (CA)
Inventor: SIBONY JACQUES
IPC: C02F3/30
Filed: 1992-06-02
Abstract: Procédé et installation d'épuration biologique des eaux résiduaires, incluant la dénitrification. Dans le processus connu où l'eau à traité séjourne dans un bassin à boues activées avant d'être soumis à la clarification, le procédé selon l'invention consiste à envoyer une partie au moins (8) de la liqueur mixte dudit bassin (B2) dans un lit fluidisé séparé (L) garni de granulé solide en expansion, avant de rejoindre la phase de clarification (C). Plusieurs variantes de réalisation sont décrites. Figure 2
Patent CA-2076506-A1 (CA)
Inventor: ZETTS JOHN M
IPC: G06F3/033
Filed: 1992-08-20
Abstract: The present invention reduces overhead processing of a data processing system by storing a predetermined number of points corresponding to the position of a pointing device as it moves on  a  workpad  or  other  touch  sensitive  input  device.   A predetermined number of points are stored in a buffer, wherein the predetermined number is dependent upon the type of pointing device (e.g., finger, stylus, etc.) used with the workpad.  The stored points are periodically displayed or inked on a visual display at a rate of at  least 20 times per  second.   As  a result,  the  user  moving  the  pointing  device  receives  both tactile  and  visual  feedback  information  similar  to  that provided by, a pencil used to make markings on a piece of paper. An  alternative  embodiment  provides  a  similar  reduction  of overhead   associated   with   erasing   graphical   information displayed on the visual display.
Patent CA-2077738-A1 (CA)
Title: Enhanced non-electrical reversible thermal cushion for a mattress or other body support surface
Inventor: FOGEL ISAAC
IPC: A47C21/06
Filed: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE           An individually reversible thermal cushion includes at least one resilient layers, an insulating layer adjacent to the resilient layer or between resilient layers.  The insulating layer has a reflective surface.  A PVC top sheet and bottom sheet contain the resilient layer and the insulating layer.  The resilient layer is made from polyurethane foam having a density of at least 1.8 lbs/cubic foot, and has a convoluted surface on at least one side, on which the domes have a diameter of approximately 2.5 inches at their base.  The resilient layer may also be urethane foam, and/or polyester fiber stitched together in an appropriate quilted pattern.  The reflective surface is aluminum vacuum deposited on one side of a polyethylene film laminated to a polyethylene film laminated to a polyurethane foam. The PVC top and bottom sheets may be vacuum formed to the contours of the resilient layer.
Patent CA-2078583-A1 (CA)
Title: Deicer
Inventor: HLAVAC KENNETH A
IPC: B64D15/16
Filed: 1992-09-18
Abstract: ABSTRACT A system for controlling the inflation and deflation of deicer members for breaking up ice formation thereon.  A non-regulated pressure source is connected to a controller valve and an ejector valve, wherein the ejector valve supplies a vacuum source to the controller valve as needed to keep the deicer members deflated.  The controller valve is operative upon actuation to direct pressurized fluids to the inflatable deicer members and upon a predetermined build-up of pressure interrupts the flow of fluids from the pressure source while locking the inflatable deicer members in their inflated condition until the controller valve is de-actuated so it places the deicer units in communication with a vacuum.
Patent CA-2078968-A1 (CA)
Title: Trap device for an air register
Inventor: CURRENCE DONALD W
IPC: F24F7/10
Filed: 1992-09-28
Abstract: TRAP DEVICE FOR AN AIR REGISTER          ABSTRACT OF THE DISCLOSURE:   An  insert device  for an air outlet register of a heating system comprises a screen mesh material in the form of an open box extending into the hole in the floor to a distance sufficient to receive the air register body.  The screen mesch material can have a flange at the top edge to be attached over the surface of the floor.   The screen mesh material does not act as a filter in any way but simply stops any articles dropped through the register by a  child  or  accidentally  from entering the duct and becomining lost.
Patent CA-2080787-A1 (CA)
Title: Copolymers of ethylenically unsaturated ethers useful as hydraulic cement superplasticizers
Inventor: ARFAEI AHMAD
IPC: C04B24/16
Filed: 1992-10-16
Abstract: ABSTRACT OF THE INVENTION      In the present invention copolymers of certain ethers and olefinic mono- acids (or salts or in some cases esters thereof) have been discovered to be effective superplasticizers for hydraulic cements.  When admixed into wet cement compositions these polymeric compounds give the cement mixture higher slump and lower slumploss over time.  Alternatively, the copolymers of this invention may be used in preparing a cement mixture requiring less water, to yield a hardened cement with greater compressive strength.
Patent CA-2083871-A1 (CA)
Title: Electromagnetic Radiation Monitor
Inventor: ASLAN EDWARD
IPC: G08B21/18
Filed: 1992-11-26
Abstract: An  electromagnetic  radiation  monitor  includes  an electromagnetic radiation sensor, a conductive shield spaced apart  from the  sensor  and  a  backing  of  graduated  lossy material.  The electromagnetic radiation sensor includes thin film resistive thermocouples.  The backing of graduated lossy material is interposed between the radiation sensor and the conductive shield.  The layer is progressively more conductive through its thickness from the side which faces the sensor to the side which faces the conductive shield.  The invention may be provided in a form of a personal electromagnetic radiation monitor or an area (fixed position) electromagnetic radiation monitor.
Patent CA-2086898-A1 (CA)
Title: Herbicides
Inventor: HEWETT RICHARD
IPC: A01N43/90
Filed: 1993-01-07
Abstract: ABSTRACT Pyrido[2,3-d]pyridazin-5-one and pyrido[2,3-d]pyridazin-5-thione derivatives of general formula (I):                           (I) wherein R and R1 independently represent hydrogen, optionally halogenated alkyl, alkenyl or alkynyl, optionally substituted heterocycle or a group -[CR41R42]n-(phenyl)-(R3)q; R2 represents halogen, optionally halogenated alkyl, alkenyl or alkynyl, CN; -CO2R4;-S(O)rR4;-NO2;-NR41R42;-OH;-COR4,-S(O)rR5,-CO2R5,-OR5;          -CONR41R42,-OSO2R5,-OSO2R6,-OCH2R5,-N(R41)COR6,-N(R41)SOR5, -N(R41)SO2R6,-S2NR41R42,optionally substituted phenyl, alkoxy or haloalkoxy;     X represents oxygen or sulphur; R3 represents halogen, optionally halogenated alkyl, alkenyl, alkoxy, alkynyl, -OH,-S(O)rR4,-CO2R4,COR4,-CN,-NO2,-NR41R42,-OR5;-CONR41R42, -OSO2R5,-OSO2R6,-OCH2R5,-N(R41)COR6,-NR41)SO2R5,N(R41)SO2R6 or -SO2NR41R42; R4 represents a hydrogen atom or optionally halogenated Cl 6 alkyl; R41 and R42, which may be the same or different, each represents a hydrogen atom or optionally halogenated C1-4alkyl; R5 represents a phenyl group optionally substituted by from one to five groups selected from halogen, nitro, cyano, R4 and -OR4;      m represents zero or an integer from one tn three; n represents zero, one or two; where n is two, the groups -(CR41R42)- may be the same or different, q represents zero or an integer from one to five; r represents zero, one or two;     with the proviso that when m represents zero R and R1 do not simultaneously represent hydrogen; and agriculturally acceptable salts thereof are useful as herbicides.
Patent CA-2088704-A1 (CA)
Inventor: LEGO FRANCOIS
IPC: F25D15/00
Filed: 1993-02-03
Abstract: Procédé d'alimentation en frigories d'au moins une enceinte réfrigérée notamment d'une enceinte ouverte pour l'exposition et la vente en libre-service de produits frais, caractérisé en ce que: a) on dispose dans le local de vente lesdites enceintes ouvertes (10, 11, 12) pourvues de façon connue en soi de rampes de distribution et de reprise d'air froid, parcourant l'espace intérieur des enceintes, les filets d'air léchant les produits exposés et l'air se réchauffant par l'emprunt de calories échangées depuis les produits; b) on met en place dans une zone déportée par rapport auxdites enceintes (10, 11, 12) et choisie pour ses commodités d'accès, une centrale de refroidissement d'air et comportant principalement un évaporateur (6) de liquide-gaz frigorigène; et un ventilateur (12), cette centrale est par ailleurs alimentée en frigorigène par un groupe frigorifique; c) on entraîne par circulation forcée l'air. froid provenant de l'évaporateur de ladite centrale par des gaines (13, 13a, 13b) appropriées vers lesdites enceintes (10, 11, 12), l'air froid provenant de la centrale de refroidissement d'air étant délivré à des rampes de distribution d'air froid desservant les enceintes, des rampes de reprise d'air étant raccordées par des gaines (16a, 16b) de recyclage à ladite centrale pour le retour de l'air réchauffé par passage dans l'enceinte et renvoyé vers ledit évaporateur (6) pour y être refroidi. Figure 2.