baber/WOPTO huggingface dataset:
Patent CA-2096897-A1 (CA)
Title: Preparation of polymers
Inventor: KEIJSPER JOHANNES J
IPC: C08G67/02
Filed: 1993-05-25
Abstract: A B S T R A C T                      PREPARATION OF POLYMERS     A process for the preparation of co-polymers which comprises co-polymerizing carbon monoxide with one or more ethylenically unsaturated compounds under polymerization conditions in the gasphase, in the presence of a catalyst system comprising a)   a metal of Group VIII of the Periodic Table, b)   a support, and c) a promoter, whereby the amount of promoter is less than 30 mol per gram atom of Group VIII metal.
Patent CA-2098585-A1 (CA)
Inventor: DILLON JO-ANNE R
IPC: G01N35/02
Filed: 1991-12-16
Abstract: The invention relates to laboratory apparatus for performing repetive tasks, such a inoculating multiple bacterial cultures into petri dishes. First and second bearing ways are located below a table in a frame, the bearing ways supporting for independ-ent movement therealong, respectively, first and second carriages. An independently operable transfer mechanism can transfer objects between the table and a selected one of the carriages or between the carriages themselves. A mechanism is provided to per-form the task on an object positioned on the table or a carriage. The movement of he carriages, the transfer of objects, and the performance of the tasks are all coordinated in accordance with the respective tasks to be performed.
Patent CA-2099138-A1 (CA)
Inventor: HASHIMOTO NOBUKAZU
IPC: A61K38/00
Filed: 1993-06-25
Abstract: A crystallizable, purified chondroitinase ABC having a molecular weight of about 100,000 dalton by the measurement of the SDS-polyacrylamide gel electrophoresis (SDS-PAGE) and the measurement by the gel permeation chromatography method, having alanine as the N-terminal amino acid and proline as the C-terminal amino acid.   A process for the purification of the crystallizable purified chondroitinase ABC comprising removing nucleic acid from an  surfactant solution  extract  obtained  from  cells  of chondroitinase    ABC-producing microorganisms    and chromatographically treating by concentration gradient elution using a weak cation exchange resin or a strong cation exchange resin.   A composition comprising a chondroitinase and serum albumin, gelatin, or a nonionic surfactant.
Patent CA-2101526-A1 (CA)
Inventor: SUN HSIANG-NING
IPC: C07C17/42
Filed: 1991-08-26
Abstract: Arrêt de la formation d'un polymère alvéolaire par traitement comprenant un élément du groupe IV, et au moins un hydrogène avec l'élément du groupe IV. Ce composé peut être ajouté à de la matière organique ayant servi à la formation du polymère alvéolaire, ou ajouté à un système permettant la récupération, l'utilisation ou l'entreposage de ces matières organiques.
Patent CA-2102799-A1 (CA)
Inventor: ENGWALL STEN
IPC: F24D5/04
Filed: 1992-05-08
Abstract: The present invention relates to a method for constructing a building foundation, and also to a building construction, in which the floor storey of the building rests essentially on the foundation which, in turn ties on the ground. In order to simplify the erection of a building and its possible conversion, and therewith reduce building cost and obtain improved heat economy, simpli-fied cable installation and good access to the appliances used in the running of the building, a method has been developed for constructing a building foundation and for providing a foundation constructed in accordance with the method. According to the invention, an insulated and separate service space (1) has been created beneath the floor storey of the living accommodation, with room for accommodating heating, ventilation and water supply systems, among other things. The insulated service space (1) is de-fined mainly by the floor storey of the building concerned, a ground insulating layer and a surrounding foundation wall or the like. Provided between the insulated space (1) and a first storey is gap (22) which extends along the inside of each external wall and through which air and cables are able to pass.
Patent CA-2103896-A1 (CA)
Title: Production of metal and metalloid nitrides
Inventor: CALKA ANDRZEJ
IPC: C04B35/58
Filed: 1992-02-19
Abstract: A nitride of a metal or solid metalloid is produced by ball milling a powder of a metal or metalloid in a nitrogen, or nitrogen-containing atmosphere (such as ammonia). The pressure in the ball mill is normally from 100 to 5,000 kPa, typically about 300 kPa.  The ball mill temperature may be from room temperature to 500 ·C, preferably from 200 ·C to 400 ·C. The product powder is normally pressure moulded and annealed at 800 ·C for about 1 hour to produce a strong, hard body. Controlling the degree of nitration, or mixing the product nitride powder with a metal powder before pressure moulding, enables a composite comprising a metal matrix with a dispersed nitride phase to be produced. An alternative technique, involves ball milling the metal or metalloid powder with an organic nitrogen-containing chemical which dissociates in the ball mill. This yields a mixture of the nitride and carbide of a metal or solid metalloid.
Patent CA-2104817-A1 (CA)
Title: Composition and method for developing extensional viscosity in cleaning compositions
Inventor: CHOY CLEMENT K
IPC: C11D10/02
Filed: 1993-08-25
Abstract: The present invention is a thickened viscoelastic cleaning composition comprising, in aqueous solution: (a) an active cleaning compound; and (b) a viscoelastic thickening system comprising a hexadecyl dialkyl amine oxide and an organic counterion.   The present invention is characterized as a means of reducing the characteristic "bleach odor" found in hypochlorite cleaning compositions of the art, particularly those which are volatilized upon dispensing. The composition of the present invention may be formulated to have utility as a hard surface cleaner, or as a drain-opener.
Patent CA-2105907-A1 (CA)
Inventor: NEWMAN ROBERT L
IPC: F24C15/10
Filed: 1993-09-10
Abstract: The temperature of a glass cooktop is sensed by an elongated thermistor rod positioned below the cooktop.  The thermistor rod has a negative temperature coefficient of electrical resistance and is connected in a control circuit for the cooktop heater.  The opposite end portions of the thermistor rod are located outside of the housing for the cooktop heater so that electrical connections to such end portions are not exposed to extremely high temperatures.
Patent CA-2106407-A1 (CA)
Title: Athletic shoe having plug-in-module
Inventor: GOLDSTON MARK R
IPC: B42B5/00
Filed: 1992-06-26
Abstract: 2106407 9311681 PCTABS00022 An athletic shoe (20), includes a sole (22), an upper (25), and a tongue (26), as well as fasteners (28), such as shoelaces.  Incorporated into the sole (22) of the athletic shoe (20) is a receptacle (30) for receiving and retaining a plug-in module (32) in a slide-in, releasably locking arrangement. The plug-in module (32) preferably includes a battery (62), a light emitting device (54), and electrical circuit elements (58, 60, 72) arranged to selectively connect the battery (62) to the light emitting device (54).
Patent CA-2106749-A1 (CA)
Inventor: CHEN TSANG-HUE
IPC: A47J39/00
Filed: 1993-09-22
Abstract: A  cooking  device  having an outer pot  and  an  inner  pot removally  suspended in the outer pot is proposed for better  and easier cooking of foodstuff.  The inner pot is made of  thermally conductive,  metallic  material  and  is  adapted  for  initially cooking  foodstuff with a separate heater for a short  period  of time.   The  outer  pot  is  made  into  a  thermally   insulated construction  and adapted to house the inner pot  containing  the semi-cooked  foodstuff in the outer pot in a thermally  insulated manner, so as to allow the semi-cooked foodstuff to complete  the cooking  by its own latent heat without a further heating  by  an external heat supply means.
Patent CA-2111355-A1 (CA)
Title: Pipetting probe with reduced reagent carryover
Inventor: CLAFLIN ALFRED J JR
IPC: G01N35/10
Filed: 1991-06-13
Abstract: The present invention embraces an improved pipetting probe wherein a portion of the interior of said probe is etched so as to create fluid turbulence therewithin during use to improve the washing out of residual sample fluid. More particularly, the pipetting probe of the present invention comprises a rigid tubular sheath (11) tightly circumscribing a tubular polymeric liner (12) wherein a portion of the interior of said polymeric liner is etched, particularly that portion excluding the sample region portion. The present invention also embraces a method of improving the internal washing efficiency of a pipetting probe by etching a portion of the interior of the pipetting probe. In addition, the invention embraces a method of making an improved pipetting probe by pulling a tubular polymeric liner, which has a narrowed liner portion formed by a narrowing die, into a rigid tubular sheath, and allowing the narrowed liner portion to expand against screw threads in the tip portion of the sheath so as to become immovably fixed therein.
Patent CA-2112027-A1 (CA)
Title: Prostaglandin combinations in glaucoma therapy
Inventor: DESANTIS LOUIS M
IPC: A61P9/12
Filed: 1993-12-21
Abstract: ABSTRACT OF THE DISCLOSURE           The  present  invention  relates  to  a  topical ophthalmic  composition, especially  for  the  treatment  of glaucoma   and  ocular  hypertension,   said  composition comprising a combination of:  a therapeutically effective amount of a compound of formula (I):                                       (I) wherein X and Y can be the same or different, and are:  CH2 or 0; R1 is hydrogen, a cationic salt moiety, a pharmaceu-tically  acceptable  amine  moiety  or  a  pharmaceutically acceptable  ester  moiety derived  from the  corresponding alcohol; and R2 is hydrogen or a pharmaceutically acceptable ester moiety derived from the corresponding carboxylic acid; R3, R4 and R5 can be the same or different,  and are:  H or CH3, with the proviso that if R3 is CH3, then R4 and R5 are H;  and  R6  is:  C2-7alkyl,  thienyl  or  aryl,  optionally substituted with one or more of the following: C1-5alkyl, trifluoromethyl, or a halogen; with the proviso that if Y is o, and R6 is aryl, then the aryl group must contain at least one substituent; and a therapeutically effective amount of a compound of formula (II):                        (II) wherein R'1 is hydrogen, a cationic salt moiety, a pharma-ceutically acceptable amine moiety or a pharmaceutically acceptable  ester  moiety derived  from the  corresponding alcohol;  and  R'2  is  hydrogen or  a  pharmaceutically acceptable  ester  moiety derived  from the  corresponding carboxylic acid.
Patent CA-2112049-A1 (CA)
Title: Deposit-resistant contact lenses
Inventor: ROBERTSON JAMES R
IPC: G02B1/04
Filed: 1993-12-21
Abstract: DEPOSIT-RESISTANT CONTACT LENSES            Abstract of the Disclosure Hydrophilic copolymers, based on 2-hydroxyethyl methacrylate and comonomers containing a quaternary ammonium moiety, possess good oxygen permeability, strong physical properties and high antimicrobial activity making them superior starting materials for preparing contact lenses which are resistant to deposits.
Patent CA-2113515-A1 (CA)
Title: Inhibiting the development of tolerance to and/or dependence on an addictive substance
Inventor: MAYER DAVID J
IPC: A61P25/30
Filed: 1994-01-14
Abstract: Nontoxic substances that block the N-methyl-D-aspartate (NMDA) receptor, e.g., a morphinan such as dextromethorphan or dextrorphan, or 'that block a major intracellular consequence of NMDA receptor activation, e.g., a ganglioside such as GM1 or GT1b, a phenothiazine such as trifluoperazine or a naphthalenesulfonamide such as N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide, inhibit the development of tolerance to and/or dependence on addictive drugs, e.g., narcotic analgesics such as morphine, codeine, etc.
Patent CA-2113956-A1 (CA)
Title: Application and method for the production of n-cyclic and n,n'-dicyclic ureas
Inventor: HACKL KURT A
IPC: C07D413/06
Filed: 1994-01-21
Abstract: Abstract An application of ureas in which at least one of the urea's two nitrogen atoms  is part  of a non-aromatic ring which can be broken by an oxygen or sulphur atom as a chemical solvent, and a method of producing tri-or tetraalkylated ureas or bis ureas wherein at least one of the urea's nitrogen atoms is part of a non-aromatic ring which can be broken by an oxygen or sulphur atom by means of dialkylating the -NH2 group of a urea with an alkene  or  alkene  arylene  alkene  dihalogenide, disulphonate or dihydrogen sulphonate in the presence of a solid base and a phase-transfer catalyst.
Patent CA-2117982-A1 (CA)
Title: Instant data collecting and processing system for internal combustion engine
Inventor: MASSON OLIVIER
IPC: F02B77/08
Filed: 1994-10-12
Abstract: The control system according to the invention is associated with an engine provided with means for measuring one or more parameters: pressures (in the cylinder, at intake, at exhaust) for each cylinder, accelerator, injector needle lift, detecting pinking or knocking, engine torque, etc., and with means for angular encoding of the crankshaft position. It includes a synchronisation assembly (7) interacting with means for angular discrimination, so as to reset automatically at every moment the angular encoding data with respect to the combustion cycles. An acquisition assembly digitises, at a high frequency, various data items measured and especially the values of the pressure taken during each cycle, simultaneously in all the cylinders. A processing assembly (18) especially comprising a fast digital processor suitable for determining in real time complex physical parameters such as indicated MEP (mean effective pressure) over each cycle or engine revolution, factors of stability of these parameters over time etc. The results obtained are applied to a control computer (19) designed to determine and optimise various parameters of the engine: fuel injection, ignition advance, etc. - Application to optimising two-stroke or four-stroke petrol or diesel engines. <IMAGE>
Patent CA-2119000-A1 (CA)
Title: Formulation for use in smokers
Inventor: HORROBIN DAVID F
IPC: A23L1/30
Filed: 1994-03-14
Abstract: ABSTRACT Preparation of a formulation for mitigating ill effects of smoking, wherein one or more of the n-6 EFAs selected from GLA, DGLA and AA, and one or more of the n-3 EFAs selected from SA, 20:4n-3, EPA, DPA or DHA are used, preferably so that the daily dose of each fatty acid is within the range 1mg to 100g/day. The formulation may in many other purposes be used in the treatment or prevention of ageing of the skin of smokers.
Patent CA-2120709-A1 (CA)
Title: Enzyme-orthokeratology
Inventor: HARRIS DONALD H
IPC: A61F9/00
Filed: 1992-10-15
Abstract: A method and apparatus for correcting refractive errors of the eye are disclosed. Accelerated reshaping of the corneal tissue is accomplished by administering one or more enzymes and/or other agents to the eye which temporarily soften the cornea. The cornea is thereafter fitted with a rigid contact lens or a series of lenses which have a concave curvature that will correct a refractive error. The softened cornea then rapidly reshapes its convex curvature to the concave curvature of the contact lens or series of lenses, thereby rendering the eye emmetropic. The enzymes and/or other agents then dissipate from the cornea, and the cornea "hardens" to retain the new emmetropic shape. After "hardening" has occurred, the lens rendering the eye emmetropic is removed.
Patent CA-2121027-A1 (CA)
Title: Improved magnetic resonance analysis in real time, industrial usage mode
Inventor: ROY AJOY
IPC: G01R33/44
Filed: 1992-11-19
Abstract: Pulsed NMR system for industrial measurements comprising sample throughput system (P, LI, V1, V2) and user system controls (104) to establish digitized free induction decay (FID) curves (C), from which Abragam or fast Gaussian, slower modified Gaussian and exponential components are determined using a Marquardt-Levenberg iteration technique, and using regression techniques to correlate the FID curve components to the physical structures and quantities of the target nuclei.
Patent CA-2123252-A1 (CA)
Title: Polypeptide and dnas encoding it
Inventor: SHIBAYAMA SHIRO
IPC: A61K38/00
Filed: 1994-05-10
Abstract: Abstract The present invention is related to novel polypeptide consisting of 170 amino acids which is produced in a human glioblastoma cell line, a method of producing it, DNA encoding the said polypeptide, a fragment capable of selectively hybridizing to the DNA sequence, a replication or expression vector comprising the DNA and a host cell transformed with the replication or expression vector. The polypeptide of the present invention may be useful for the prevention of or in the treatment of aplasia or abnormal proliferation, of glias, neurons or haematopoient cell, depression or enhancement of immunological or neurological activity, inflamatory desease, or tumors.
Patent CA-2126682-A1 (CA)
Title: Press-on closure with peelable end panel
Inventor: ROTH DONALD J
IPC: B65D17/353
Filed: 1992-12-23
Abstract: A press-on closure (10) for a tubular container (12). The closure includes a molded plastic frame (14) having a ledge (28) on which an end panel (16) is seated and to which the end panel is peelably secured. The end panel has a free outer peripheral edge unbonded to the frame. The resultant closed container is subject to retorting with the result that heretofore the end panel could axially outwardly deform and possibly initiate internal peeling. To prevent this peeling, the frame is provided with a thin flexible integral flange (36) forming a continuation of the ledge on which the end panel is seated. The end panel is also peelably bonded to the flange and the flange deforms or deflects with the end panel. The frame has a press fit onto the container, which is preferably in the form of a metal can, which at the end thereof to be closed by the closure is provided with a radially outwardly directed curl (48). The curl terminates in a raw edge (54) and is so shaped that when it is seated within a groove in the underside of the frame, the raw edge is embedded in a skirt portion of the frame to permanently and sealingly lock the curl within the frame.
Patent CA-2128006-A1 (CA)
Inventor: WENG LI
IPC: A61B17/22
Filed: 1993-01-26
Abstract: (see fig. 1) A horn (12) connectable to an energy source (88) to amplify ultrasound displacement is connected to a transmitter (14) formed of material having relatively high mechanical Q for transmitting ultrasonic energy therethrough at a frequency f, the transmitter having a horn-shaped configuration of length that is a multiple of a half-wavelength .lambda./2, and preferably this horn-shaped configuration is comprised of multiple horn segments (16a and 16b) each of a length substantially equal to a multiple of .lambda./2, where .lambda. = c/f (c is the speed of sound in the high Q material). The transmitter has a proximal end of cross-sectional diameter D1 connected to the horn and a distal end of cross-sectional diameter D2, where D1 > D2. Ultrasonic energy transmitted through the transmitter drives a tip which is coupled to the transmitter by means of a flexible connector (20).
Patent CA-2128306-A1 (CA)
Title: Personalized Information Service System
Inventor: BACKAUS MARJORIE S
IPC: H04M3/42
Filed: 1994-07-18
Abstract: A high-speed information service system is provided which uses a unique identifier received during call setup to retrieve automatically a personalized profile for an information service subscriber. The identifier uniquely identifies the subscriber, thereby allowing the information retrieval process to begin immediately after the call is setup. The system utilizes Integrated Services Digital Networks (ISDN) signaling and temporary, "out-of-band" signaling to improve information retrieval capability. ISDN signaling permits electronic addressing of information requested by the subscriber, thereby eliminating the delays which accompany DTMF signal processing. Communications between an information service provider and an individual information source are conducted using out-of-band signaling. That is, call setup and information request are processed using a channel other than the channel which carries data between the information service provider, the information source and the subscriber.
Patent CA-2136847-A1 (CA)
Title: Process for the decontamination of lands polluted by metals
Inventor: RIZET LAURENT
IPC: C22B3/14
Filed: 1993-05-13
Abstract: PCT No. PCT/FR93/00461 Sec. 371 Date Feb. 10, 1995 Sec. 102(e) Date Feb. 10, 1995 PCT Filed May 13, 1993 PCT Pub. No. WO93/24249 PCT Pub. Date Dec. 9, 1993The invention relates to a hydrometallurgical process for decontaminating soils 1 which are polluted with metallic elements, comprising a stage of basic leaching I so as to bring about the dissolution of the metallic elements to be removed, a cementation stage II bringing about the precipitation 6 of said elements in metal form, performed by electrochemical exchange with a zinc powder 5 produced by a stage of electrolysis III of the solution 7 originating from the cementation stage. In accordance with the invention a complementary addition of zinc is performed, preferably at the exit of the leaching stage in the form of a leachate 17 of waste from iron and steel manufacture, especially of dust 13 from electrical steel manufacture 15.
Patent CA-2137803-A1 (CA)
Title: Symmetric drive for an electroluminescent display panel
Inventor: KAPOOR MOHAN L
IPC: G09G3/30
Filed: 1993-06-30
Abstract: 2137803 9401855 PCTABScor01 A power supply for providing a symmetric drive for an AC  electroluminescent (EL) display panel includes a single power supply which provides two voltage signal values of opposite polarity Vpos, Vneg to the panel's row drivers. The supply also corrects the difference between the two voltage signal values Vpos, Vneg as a function of the difference between the maximum column driver voltage value Vcol and its nominal value to reduce latent images on the display panel. By utilizing a single switching regulator to generate the opposite polarity row voltages Vpos, Vneg the circuit complexity and cost associated with providing a symmetric drive for an EL panel is reduced.
Patent CA-2143011-A1 (CA)
Inventor: KITTO JOHN B JR
IPC: C10J3/56
Filed: 1995-02-21
Abstract: A system for providing heated fluidized bed gasification of a residual waste liquor provides a bed of granular material and a source of liquor provided to the material bed. An injector is situated in the material bed and communicates with an air source, a fuel source and a steam source. Fuel and air are combusted in the injector and mixed with the steam which forms a combustion product and steam mixture which is in turn injected into the material bed. The combustion and mixing is separated from the bed material by being confined within the injector.      The injector is a bubble cap having at least one hole or an injector made of a porous ceramic material.
Patent CA-2144509-A1 (CA)
Title: Skin-conditioning composition, its application and manufacture
Inventor: SMITH WALTER P
IPC: A61K8/00
Filed: 1993-09-13
Abstract: A skin-conditioning composition is disclosed which can be applied topically to improve skin cell renewal rates with low irritation levels and comprises minor proportions of a salicylic acid and a somewhat hydrophobic alpha hydroxy aliphatic acid formulated into an acidic cosmetic composition, optionally with an anti-irritant or anti-oxidant additive. Preferred acids are salicylic and lactic and appropriate compositions are also useful topical treatments for the scalp to reduce hair loss.