baber/WOPTO huggingface dataset:
Patent CA-2010000-A1 (CA)
Title: Photographic recording material containing a cyan dye-forming coupler
Inventor: MERKEL PAUL B
IPC: C07C317/44
Filed: 1990-02-15
Abstract: -o-PHOTOGRAPHIC RECORDING MATERIAL CONTAINING    A CYAN DYE-FORMING COUPLER          Abstract A photographic recording material is disclosed which contains a phenolic cyan dye-forming coupler which has a sulfone or a modified sulfone group in the 5- position ballast moiety and a substituted acylamino group in the 2- position of the phenolic ring.
Patent CA-2010004-A1 (CA)
Inventor: DISSER ROBERT J
IPC: G05F1/656
Filed: 1990-02-15
Abstract: IMPEDANCE MATCHING CIRCUIT          Abstract of the Disclosure The disclosure describes an impedance matching circuit for maintaining the input impedance, of a drive transistor as sensed by a driver circuit, substantially constant.  The circuit is connected to the input of the drive transistor such that when the drive transistor is forward biased, the input impedance sensed by the driver circuit is the input impedance of the drive transistor, and when the drive transistor is reverse biased, the input impedance sensed by the driver circuit is the combination of the input impedance of the drive transistor and an impedance of the matching circuit.
Patent CA-2010021-A1 (CA)
Inventor: MOUNT ELDRIDGE M III
IPC: B29C47/06
Filed: 1990-02-14
Abstract: An oriented, heat sealable polypropylene film is provided having a metallizable surface. The film includes a core layer derived from isotactic polypropylene containing an effective amount of adhesion promoting agent. A copolyester layer is bonded to the core layer, the adhesion promoting agent protecting against the delamination thereof. A heat sealable layer formed from an ethylene-propylene random copolymer is bonded to the opposite side of the core layer. The film is formed as a coextrudate and is biaxially oriented.
Patent CA-2010779-A1 (CA)
Title: Discrete tungsten complexes as oxygen and water resistant dcpd polymerization catalysts
Inventor: BELL ANDREW
IPC: B01J31/22
Filed: 1990-02-23
Abstract: DISCRETE TUNGSTEN COMPLEXES AS OXYGEN AND WATER     RESISTANT DCPD POLYMERIZATION CATALYSTS    ABSTRACT OF THE INVENTION           This invention is a process for preparing a polymer which comprises contacting pure dicyclopentadiene with a pure tungsten catalyst complex, such as WC13(2,6-disopropyl-phenoxy)3. when tributyl tin hydride or triphenyl tin hydride is used as the activator for the polymerization, This process affords a method of polymerization of dicyclopentadiene in which the mixture gels slowly without the use of a rate moderator at 80°C. (in from about 15 seconds to as much as two minutes or more) and futhermore cures quite slowly (in about 3-6 minutes). This delay makes these compositions particularly applicable to reaction injection molding processes. Moreover, both the tungsten complexes and the tin activator compounds employed in this invention are relatively insensitive to oxygen and water.
Patent CA-2012664-A1 (CA)
Title: Flame sprayable epoxy coating compositions
Inventor: MCKINNEY OSBORNE K
IPC: C09D5/03
Filed: 1990-03-21
Abstract: ABSTRACT         Flame sprayable coating compositions are prepared from (A) a melt blended, pre-reacted component comprising (1) from 75 to 98 percent by weight of at least one solid epoxy resin having a degree of polymerization of from 0 to 7; and (2) from 5 to 15 percent by weight of at least one olefinic polymer containing from 0.1 to 55 percent by weight of a group reactive with vicinal epoxy groups; (B) a melt blended, pre-reacted component comprising (3) from 10 to 60 percent by weight of at least one solid epoxy resin having a degree of polymerization of from 1 to 6; and (4) from 40 to 90 percent by weight of at least one olefinic polymer containing from 0.1 to 55 percent by weight of a group reactive with vicinal epoxy groups; and (C) a melt blended, non-reacted composition comprising(5) from 40 to 90 percent by weight of at least one solid epoxy resin having a degree of polymerization of from 1 to 10; and (6) from 10 to 50 percent by weight of at least one inorganic filler.   37,611-F
Patent CA-2013425-A1 (CA)
Title: Dimeric epipodophyllotoxin glucoside derivatives
Inventor: SAULNIER MARK G
IPC: A61K31/7042
Filed: 1990-03-29
Abstract: ABSTRACT      The present invention provides novel dimers of epipodophyllotoxin glucosides wherein the two units are connected via a diacyl linker.  These compounds have useful property as tumor inhibiting agents.
Patent CA-2013820-A1 (CA)
Title: Process for preparing hypotonic or isotonic beverages
Inventor: ERMENS HERMANUS W A
IPC: A23C9/152
Filed: 1990-04-04
Abstract: Title:  a process for preparing hypotonic or isotonic beverages.                          Abstract A process for preparing a beverage suitable as a thirst-quencher after physical exertion, having an isotonic or hypotonic composition, which is capable of compensating for losses of energy and electrolyte, wherein isotonic or hypotonic solutions of carbohydrates and, if desired, flavorings, vitamins and other conventional ingredients are added to permeate obtained by ultrafiltration or neutral milk or whey.
Patent CA-2019154-A1 (CA)
Title: Arrangement for integrating application in a digital processing system
Inventor: JACOBSON NEAL F
IPC: G06F9/46
Filed: 1990-06-18
Abstract: ABSTRACT OF THE DISCLOSURE An application integration system for use in a digital computer system. The application integration system comprises a command store and an executive, whichincludes a command recording portion and a command playback portion. The com-mand recording portion is responsive, during a recording phase, to entry of applica-tion call commands from an operator each enabling the digital computer system toprocess an application, and, while each application is being processed, to receive from the application operational commands, for storing the commands in the com-mand store. The command playback portion enables the digital computer system to process the applications identified in the application call commands stored in the command store during a playback phase, and transmits, while each application is being processed, the operational commands therefor to the application for process-ing.
Patent CA-2021567-A1 (CA)
Inventor: LINDMAYER ISTVAN
IPC: A61M5/30
Filed: 1990-07-19
Abstract: In general, syringes for needleless injectors must be reasonably accurately dimensioned, and the barrel of the injector must be formed of metal in order to prevent expansion of the syringe under pressure. A simple alternative is a syringe including an elongated tubular body with one open end and a closed end containing an injection orifice, and a plug slidable in the body with a prong at one end of the plug extending. towards the orifice end of the body, the prong carrying an O-ring and an annular seal which prevents squeezing of the O-ring between the body of the syringe and the plug under injection pressures. An alternative form of syringe includes a pair of valves, one of which normally closes the injection orifice, and the other of which is mounted on the plug. The orifice valve opens under injection pressure to permit the passage of medicine from the syringe body through the orifice, and the other valve opens when the plug, which contains a longitudinally extending passage, is moved away from the orifice end of the syringe body. With such syringes, the body of the injector can be manufactured from plastic, as can the barrel for receiving the syringe.      Moreover parts no longer need to be particularly accurately dimensioned.
Patent CA-2023394-A1 (CA)
Title: Electronic circuit interrupter with combined keypad and display
Inventor: DEBIASI MARK S
IPC: H02H3/00
Filed: 1990-08-16
Abstract: An electronic circuit interrupter digital display and keypad device includes a display to view circuit breaker settings com-bined with a keypad to select settings and values to be dis-played. The display and keypad device connects to an electronic trip unit within the circuit interrupter by means of a tamper-free seal to prevent the circuit interrupter set points from being changed without authorization. Alternatively, a password-operated control switch provides a similar function.
Patent CA-2027151-A1 (CA)
Inventor: VALI VICTOR
IPC: G01N23/20
Filed: 1990-10-09
Abstract: GAMMA RAY DETECTING DEVICE  USING CRYSTAL WAVEGUIDES                                  ABSTRACT A .gamma.-ray telescope that comprises a dislocation-free single crystal. Typical crystals include silicon and germanium, for example. The crystal is surrounded by an active shield that functions as an anticoincidence counter and a .gamma.-ray detector is dis-posed adjacent the crystal in order to detect received .gamma.-rays. The .gamma.-ray detector com-prises an imaging proportional counter, scintillation counter, or a .gamma.-ray detecting charge coupled device, for example. The .gamma.-ray detector is based on the Borrmann ef-fect, which is the anomalous transmission of .gamma.-rays through dislocation free single crystals at the Bragg angle. For extended sources, data processing is provided to sep-arate the directional and wavelength dependence of the intensity variation. The .gamma.-ray telescope has angular resolution of at least one arc second and may have an effective aperture of several square meters. Reduction in background radiation, which is es-sentially determined by the crystal thickness, may be made quite large, greater than 1012. Consequently, the use of the present invention makes it possible to detect a weak .gamma.-ray source even in the presence of a large isotropic background.
Patent CA-2027836-A1 (CA)
Title: Polyolefin composition containing fluoropolymer
Inventor: BAILEY FAY WALLACE
IPC: C08K5/098
Filed: 1990-10-17
Abstract: 32574CA Abstract of the Disclosure An improved polyolefin composition, film product, and a method of preparation are provided. Fluoropolymers, preferably fluoroelastomers, and metal stearates, are added to polyolefins. The composition has and exhibits improved impact strength and better processability,
Patent CA-2029319-A1 (CA)
Title: Liquid detergents
Inventor: WEBER KURT
IPC: C11D3/42
Filed: 1990-11-05
Abstract: 1-17820/=            Liquid detergents Abstract Liquid detergents containing, as the fluorescent whitener, 2,2'-dichloro-5,5'-disulfodistyrylbiphenyl, process for the preparation and use of the liquid detergent for washing and pre-treating textile fabrics; these are liquid detergents which are stable on storage, do not sediment, are stable to bleaching systems and do not form spots in the course of pre-treatment.
Patent CA-2029862-A1 (CA)
Title: Deflectable-end endoscope with detachable shaft assembly
Inventor: SOSNOWSKI STEPHEN A
IPC: A61B1/307
Filed: 1990-03-12
Abstract: (57) Abstract An endoscope (3) having a deflectable tip configured so as to have a small outer diameter or approximately 0.15 inch or less. The endoscope includes a flexible shaft subassembly (I) comprised of a conduit having a deflectable end segment at its dis-tal end which can be controlled by a manually operable mechanism on a handle subassembly (2) The shaft subassembly further includes a cone subassembly (6) at its proximal end including means for structurally connecting to the handle subassembly (2) Illumination fibers, and imaging fiber, a pull wire and a working channel extend through the shaft subassembly (1) from its distal end to terminals in the cone subassembly for interfacing to the handle subassembly (2). The handle subassembly comprises an optical component which allows for the viewing or an image emanating from the shaft subassembly imaging fiber, a deflection mechanism which incorporates a means for physical displacement and axial displacement of the shaft subassembly pull wire (33), and a locking mechanism for attaching the shaft subassembly to the handle subassembly.
Patent CA-2031095-A1 (CA)
Title: Process for producing liquid-loaded powders
Inventor: CLINE JOHN F
IPC: A61K9/14
Filed: 1990-11-29
Abstract: ABSTRACT         The specification describes a process for producing liquid-loaded powders which are capable of releasing their liquid load when subjected to shearing forces.  A cellulosic polymer and a liquid load are dissolved in a polar solvent to form a solution.  The solvent is then dispersively evaporated from the solution to form a liquid-loaded powder. Dispersive evaporation of the solvent in a spray drying tower is described.  Cellulosic polymers exemplified in the specification include cellulose triacetate, an ethyl cellulose and a cellulose propionate.   Solvents exemplified include methylene chloride, ethyl acetate and acetone.  Uses of the liquid-loaded powder described include a carrier for fragrances used in toilet soap formulation, a sunscreen formulation in powder form, an insect repellent in powder form, a baby oil and a moisturizer in powder form.
Patent CA-2032768-A1 (CA)
Inventor: BILGER EDGAR
IPC: C01D7/07
Filed: 1990-12-20
Abstract: In a process for the removal of sodium polysulphide from run-down sodium/sulphur batteries, the cells are crushed while taking safety measures.  The scrap metal is treated in a sodium cyanide solution and on separating the insoluble components the solution obtained is treated with air in the presence of manganese dioxide.  The solution then contains sodium thiocyanate and sodium hydroxide.  The latter can be reacted with CO2Na2CO3, precipitated and separated out.
Patent CA-2033001-A1 (CA)
Title: Catalyst composition for polymerizing olefins to polymers having good compositional homogeneity
Inventor: HAGERTY ROBERT O
IPC: C08F4/42
Filed: 1990-12-21
Abstract: A supported olefin, e.g., alpha-olefin, polymerization catalyst composition is synthesized by reacting (1) a slurry of a solid catalyst carrier in a non-polar solvent, e.g., hexane, with a dialkyl organomagnesium composition; (2) contacting the slurry of step (1) with a hydroxyl group-containing compound, e.g., an alcohol; (3) contacting the slurry of step (2) with at least one transition metal compound; (4) removing the non-polar solvent to obtain a dry-flowing powder; and, (5) activating the powder with dimethylaluminum chloride. The resulting catalyst composition produces polymers having substantially better distribution of side chain branches on polymer molecules than polymers made with precursors activated with conventional activators, e.g., triethylaluminum.
Patent CA-2036359-A1 (CA)
Title: Laser system with multiple radial discharge channels
Inventor: SEGUIN HERB J J
IPC: H01S3/08
Filed: 1991-02-14
Abstract: TITLE: LASER SYSTEM WITH MULTIPLE RADIAL DISCHARGE CHANNELS INVENTOR:  HERB J.J. SEGUIN            ABSTRACT OF THE DISCLOSURE        A laser system includes three or more narrow-gap laser discharge channels mounted radially about a common axis.  The laser discharge volumes may be  excited by RF radiation, microwave radiation or by means of the MAGPIE system.  The laser  discharge  channels  may  be  mounted  in  an  optical resonator having a common unstable cavity mode,  a toric resonator,  with or without feedback,  or a retro-reflected toric  unstable  resonator.  A  pair  of  adjacent  discharge channels may be coupled to form a ring microwave resonator, and the ring resonator may be formed by a continuous double ridged waveguide. Excitation for the continuous double ridged waveguide is optimally produced by a magnetron. The approach, when applied to a very large number of radial discharge channels,  provides an efficient and inexpensive means for constructing an extremely high powered gas laser in a very small physical package.
Patent CA-2038315-A1 (CA)
Inventor: LAURENT ANNE
IPC: A43B5/16
Filed: 1991-03-14
Abstract: L'invention concerne un ensemble chaussure/patin pour la pratique du patinage sur glace ou sur roulettes, du type comprenant une plate-forme 21 constituant le patin et portant sur sa face inférieure une lame 22 ou des roulettes, cette plate-forme 21 étant munie de moyens de liaison détachables de cette plat-forme avec la chaussure L'ensemble est caractérisé en ce que les moyens de liaison comprennent des moyens de verrouillage 30 complémentaires de moyens de verrouillage 31 de la chaussure aptes à assurer un verrouillage au moins de l'extrémité avant de la chaussure sur la plate-forme 21, et en ce que ces moyens de liaison comprennent des moyens de liaison/guidage complémentaires de moyens de liaison/guidage de la chaussure prévus au moins à l'extrémité  arrière de la chaussure.      Cet ensemble présente l'avantage d'autoriser un soulèvement du talon et donc un déroulement du pied pendant les différentes phases de patinage.
Patent CA-2042671-A1 (CA)
Title: Low level blasting composition and method of blasting same
Inventor: COURSEN DAVID L
IPC: C06B45/00
Filed: 1991-05-15
Abstract: RBP File No. 4242-1276 ROGERS, BERESKIN & PARR                                 CANADA         Title:  LOW LEVEL BLASTING COMPOSITION         AND METHOD OF BLASTING SAME         Inventor:  David L. Coursen Rufus E. Flinchum ABSTRACT OF THE INVENTION A blasting agent is disclosed for use in a borehole having a pressure resistant closure. The blasting agent is used in combination with a primary initiating system comprised of a detonator and an initiator for the detonator. The blasting agent is preferably a semi-fluid explosive material having a pre-determined sensitivity. The sensitivity is related to the borehole diameter and the initiating system's strength, wherein the blasting agent  upon  initiation  is  transformed  into  explosive products  by  means  of  reaction  front  which consumes substantially all the blasting agent as the reaction front passes through the blasting agent. The reaction front has an  average  velocity  of  propagation  of  between  200 metres/second and 1,000 metres/second for at least 30 % of the  total  length  of  blasting  agent  located  in  the borehole. Another aspect of the invention is a method of blasting wherein the average velocity of propagation of the explosive front in the blasting agent is in a range of between 200 m/sec and 1,000 m/sec.
Patent CA-2043474-A1 (CA)
Inventor: BARZUZA YTZHAK
IPC: B01D29/62
Filed: 1991-05-29
Abstract: A self-cleaning filter is provided herein which includes a filter housing having at least a raw-liquid inlet and one clean-liquid outlet. A filter medium is interposed between the raw-liquid inlet and the clean-liquid outlet . A first pressure producer is provided for producing a pressure which is higher than the pressure prevailing in the filter housing.      A second pressure producer is provided for producing a pressure which is lower than the pressure prevailing in the filter housing. At least one nozzle is located in proximity to the filter medium. Connectors are provided for selectively connecting the nozzle to the first and second pressure producers. A structure is provided to produce relative movement between the filter medium and the nozzle to the effect of having a substantial part of the surface area of the filter medium covered by the nozzle.
Patent CA-2044179-A1 (CA)
Title: 2-substituted-2-cyclopentenone compound and anticancer agent and bone formation accelerator comprising same as active ingredient
Inventor: SUGIURA SATOSHI
IPC: C07D257/04
Filed: 1990-10-18
Abstract: - 314 -ABSTRACT A 2-substituted-2-cyclopentenone compound repre-sented by the following formula (I) and an anticancer agent and a bone formation accelerator comprising the same as an effective active ingredient: . . . (I)
Patent CA-2047295-A1 (CA)
Title: Pizza preparation
Inventor: WADELL LARS G A
IPC: A21C11/00
Filed: 1991-07-17
Abstract: A machine for forming a pizza shell from a dough mass comprising a vertically reciprocating pizza pressing head positioned above a base plate and positioned around the circumference of the pressing head are a plurality of spaced fingers capable of reciprocating vertically and laterally, the lower ends of which are adapted to press against the border of a pizza shell on the base plate to imitate manual fingertip pressure.
Patent CA-2052702-A1 (CA)
Title: Peptides immunochemically reactive with antibodies directed against hepatitis non-a, non-b virus
Inventor: HABETS WINAND J A
IPC: A61K39/29
Filed: 1991-10-04
Abstract: Abstract The  invention  concerns  peptides  which  react immunochemically  with  antibodies  directed  against NANBH.     A method for the detection of NANBH or anti-NANBH in  a  test  fluid,  an  immunochemical  reagent  and  a testkit  to  be  used  when  applying  said  detection methods belong to the invention.
Patent CA-2053345-A1 (CA)
Title: Liquid crystal display
Inventor: TAKANO HIDEO
IPC: G02F1/139
Filed: 1991-10-11
Abstract: ABSTRACT            The specification describes a liquid crystal panel for a twisted nematic liquid crystal that provides the best angle of view in a normal direction to the plane of  a glass substrate.  Each liquid crystal cell representing a pixel is divided up into two domains,  a positive tilt and negative tilt domain.   The  relationship of the positive tilt and negative tilt domains is equalized in order to orient the molecules in the middle of the cross section of a cell with the desired neutral tilt.  The positive and negative tilts are produced by the process of adding a chiral dopant to the liquid  crystal,  or  by  a  bias-rubbing  process,  or  a combination of both processes.  A further characteristic of the panel is that angle of view is symmetric in the vertical
Patent CA-2056883-A1 (CA)
Inventor: DOODSON PETER JOHN
IPC: G11B23/023
Filed: 1991-12-03
Abstract: PHN 13.530                                        07.11.1991 ABSTRACT: "Holder for a rectangular cassette"     A holder 1 for a rectangular cassette such as a magnetic-tape cassette 2 comprises two parallel main walls 20 and 21, three interconnecting transverse walls 22 to 24, and one short open side 25 through which a cassette can be inserted into or removed from a cassette-receiving space defined by said walls. One of the main walls of the holder has a window 26 which exposes a cassette main wall, for example the main wall provided with the label 6, of a cassette inserted in the holder. The window of the holder is at least partly open, thereby enabling the cassette, when the holder is held in the palm of one hand, to be pushed out at least partly with a thumb. (Fig- 1)
Patent CA-2056893-A1 (CA)
Title: Sintered composite abrasive material, a process for its production and its use
Inventor: WINTER GERHARD
IPC: C09K3/14
Filed: 1991-12-04
Abstract: Sintered composite abrasive material useful in abrasives (grinding wheels, abrasive discs and paper, etc,) add cutting tools, comprising an .alpha.-Al2O3 matrix of sub-micron crystallite size made by sol-gel processing with a dispersed phase therein of mechanically resistant material, preferably essentially isotropic grains, added directly to the sol or gel stage of matrix formation,
Patent CA-2057918-A1 (CA)
Title: Self powered dental plaque-removing device
Inventor: WEISSMAN BERNARD
IPC: A61C3/03
Filed: 1990-05-17
Abstract: This invention provides a hand-held, self-powered, reciprocating plaque-preventing tool, for use by the general consumer for personal dental hygiene. The device comprises an outer housing (1), including a hand grip, and defining a battery section (2), a motor section (3), a transmission section (4) and a tool bit head section (5), in longitudinal extension. The tool bit head defines a transverse aperture (25); the tool bit and transmission are driven by a battery operated electric motor (12) which drives a rotatable transmission shaft (15); which in turn drives an eccentric cam member (17) for causing reciprocating motion of a tool bit (45).  The device can be used for the abrading or filing of teeth and the cleaning or removal of plaque or plaque causing material from the surfaces of the teeth.