baber/WOPTO huggingface dataset:
Patent WO-0180190-A1 (WO)
Title: Procede et systeme pour un coffre-fort virtuel
Inventor: SARCANIN BRANKO
IPC: G06F21/34
Filed: 2001-04-17
Abstract: L'invention concerne un serveur de transactions pour effectuer des transactions sur un réseau en utilisant une carte à puce intelligente virtuelle. Le serveur comprend une banque de données de carte à puce intelligente virtuelle ayant une pluralité d'enregistrements, chaque enregistrement comprenant une identification de carte virtuelle et une valeur correspondant à une unique carte à puce intelligente virtuelle ; un module de sécurité; un émulateur pour l'émulation d'une carte à puce intelligente, pour recevoir les commandes de la carte à puce intelligente et traiter les commandes en conjonction avec la banque de données de la carte à puce intelligente virtuelle et le module de sécurité; et un module de lecture de carte virtuelle pour recevoir les commandes de la carte à puce virtuelle et relayer les commandes à l'émulateur de la carte à puce intelligente, ce qui permet d'effectuer des transactions sur le réseau en utilisant un ou plusieurs enregistrements et la banque de données de la carte à puce intelligente virtuelle.
Patent WO-03045852-A1 (WO)
Title: Method for stabilizing and conditioning urban and industrial wastewater sludge
Inventor: BLAIS JEAN-FRANCOIS
IPC: C02F1/52
Filed: 2002-11-29
Abstract: The invention concerns a method for stabilizing and conditioning wastewater sludge. The invention is characterized in that it consists in treating sludge in an acid environment (3.0 ≤ pH ≤ 5.0), with an inorganic acid and two oxidizing agents, that is a ferric iron salt and hydrogen peroxide. The ferric iron salt is used in such an amount as to obtain a concentration ranging between 5 and 40 kg of Fe per ton of dry sludge; the hydrogen peroxide is used in such an amount as to obtain a concentration ranging between 5 and 40 kg of H2O2 per ton of dry sludge; mixing the treated sludge for a time interval sufficient to stabilize the sludge and improve its dehydrability; then flocculating the stabilized sludge by adding an organic polymer; then dehydrating the flocculated sludge. Said method enables to significantly improve the dehydrability properties of the sludge while increasing the dry solid content during its mechanical dehydration.
Patent CA-2001167-A1 (CA)
Inventor: IPPEN JOACHIM
IPC: C07D417/12
Filed: 1989-10-20
Abstract: A 2-aminothiazole of the formula (see formula I) in which R1 represents hydrogen or alkyl and R2 represents a radical of the formula (see formula II); (see formula III) or (see formula V) where R3, R4, R5 and R6 independently of one another in each case represent hydrogen, halogen, nitro, alkyl, alkoxy, alkoxycarbonyl, dialkylamino, alkylthio, alkylsulphinyl, alkylsulphonyl, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, halogenoalkylsulphinyl or halogenoalkylsulphonyl, X represents oxygen, sulphur, sulphinyl or sulphonyl and Ar represents an unsubstituted aryl or a substituted aryl radical, and their physiologically tolerable acid addition salts.
Patent CA-2005580-A1 (CA)
Inventor: FADNER THOMAS A
IPC: B41F7/20
Filed: 1989-12-14
Abstract: An inking roller or ink metering roller comprised of a base roller, a substantially continuous hard and wear-resistant microporous ceramic coated layer bonded to the base roller and an interdiffused and immobilized oleophilic and hydrophobic essentially organic polymeric based material affixed to the surfaces and interstices of the microporous layer.
Patent CA-2006933-A1 (CA)
Title: Whirlpool bath with inverter-controlled circulating pump
Inventor: HARAGA HISATO
IPC: A61H33/02
Filed: 1989-12-29
Abstract: ABSTRACT      A whirlpool bath with an inverter-controlled circulating pump comprises a bathtub body, a circulating pump driven by a power-operated motor, a hot water circulation path disposed between the bathtub body and the circulating pump, the hot water circulation path comprising a hot water suction path and a hot water forced-feed path, the hot water forced-feed path having at least one terminal end which is open into the bathtub body, at least one blow-off nozzle which is mounted on the terminal end of the hot water forced-feed path, an air intake portion connected to the hot water forced-feed path to permit blowing of bubbling hot water into the bathtub body from the blow-off nozzles, an inverter interposed between a drive circuit of the power-operated motor of the circulating pump and a power source and an electricity insulation means protecting the transfer of high frequency components of inverter-produced current to the hot water in the bathtub body. Due to such construction, the circulating pump can be controlled such that the revolution of the motor is readily and smoothly varied by way of a frequency modulation effected by the inverter to provide the blow-off of hot water in various modes which are different in the blow-off amount and pressure of the blow-off hot water, while assuring a maximum degree of safety of a bather.
Patent CA-2007397-A1 (CA)
Title: High/medium voltage circuit breaker
IPC: H01H33/10
Filed: 1990-01-09
Abstract: The subject is a medium or high voltage circuit-breaker comprising, in a surround filled with pressurised dielectric gas, a main stationary contact (2) and a main moving contact (3), as well as a stationary arc contact (6) and a moving arc contact (7) between which an arc is established when they separate, characterised in that it comprises means for splitting the arc up into a large number of elementary arcs, each elementary arc being established between two metal plates (12). 
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Patent CA-2007772-A1 (CA)
Title: Railroad rail profile measuring system
Inventor: LEACH DAVID J
IPC: B61D15/00
Filed: 1990-01-15
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus for measuring the profile of a rail head includes a base, an actuating unit, a carriage and a sensing device.  These components cooperate to laterally move the sensing device across the width of the rail as it is moved longitudinally along the length of the rail, so that a single sensing element may be used to measure the profile of the rail head.
Patent CA-2008063-A1 (CA)
Inventor: HORNSEY DEREK
IPC: C22B3/02
Filed: 1990-01-18
Abstract: A process and apparatus for leaching metal values from a particulate mineral ore containing metal values employs a fluidized bed of the particles;  a leaching agent  solution containing  dissolved oxygen flows upwardly of the bed in a lower leaching zone, to an upper clarification zone;   a velocity profile is maintained to promote settling of particles so that the particulate solids remain in the leaching zone and a   clarified   leachant-containing   liquid   low   in suspended solids rises and collects in the clarifi-cation zone; the process is carried out with a minimum of undissolved gas and avoids the need for mechanical agitation,  but the kinetics of the chemical leaching reaction is improved and heat loss via escaping gases is avoided.
Patent CA-2009038-A1 (CA)
Title: Improved process for hydrothermal production of potassium silicate solutions
Inventor: NOVOTNY RUDOLF
IPC: C01B33/32
Filed: 1990-01-31
Abstract: The direct hydrothermal production of high purity potassium silicate solutions having a high SiO2 : K2O molar ratio by reaction of a silicon dioxide source with aqueous potassium hydroxide solutions is made possible by using a silicon dioxide source that contains a sufficient fraction of cristobalite phase, or by conditioning other crystalline forms of silicon dioxide by heating at or above 1100° C, but below the melting point of silica, before the hydrothermal treatment. Preferably the potassium hydroxide solution has a concentration range of 10 to 40% by weight, and the reaction is carried out in a closed pressure reactor at temperatures of 150 to 300°C and under saturated steam pressures corresponding to those temperatures.
Patent CA-2009589-A1 (CA)
Title: Side mounted drawer slide system
Inventor: BODA JOHN W
IPC: A47B88/493
Filed: 1990-02-08
Abstract: SIDE MOUNTED DRAWER SLIDE SYSTEM                 Abstract of the Disclosure A drawer slide system of the type in which a rail is supported on each side of a drawer and coacts with an adjacent cabinet-mounted track to support the drawer for back and forth horizontal movement in the cabinet.  The rail and track may either be used alone in a conventional slide system or the same rail and track may be used in conjunction with an intermediate adaptor in a fully extendible slide system.
Patent CA-2009997-A1 (CA)
Title: Infant carrier for use in an aqueous environment
Inventor: POOLE ALLISON S
IPC: A47D13/02
Filed: 1990-02-14
Abstract: ABSTRACT OF THE DISCLOSURE                     INFANT CARRIER FOR USE IN    AQUEOUS ENVIRONMENT      An  infant  carrier  includes  a  harness  and  a  pouch removably secured to the harness. The harness and the pouch are of materials suitable for use in an aqueous environment. The removability of the pouch renders the invention adaptable for interchanging pouches in accordance with the size of the infant to be carried as is desirable,  and for replacing harnesses and/or pouches for other reasons as the need may arise from time to time.
Patent CA-2011249-A1 (CA)
Inventor: HODGSON THOMAS C
IPC: B29C65/02
Filed: 1990-03-01
Abstract: Sheets of  materials (12,13,27,28) are bonded together by placing them into intimate contact, bringing  them into a single  composite  assembly,  such  as a roll (14,30) and heating the assembly until at  least  one  of  the sheets reaches  a  temperature  at  which  it will adhere to the adjacent sheet.   If  required, a  powdered bonding agent may be  applied to one sheet surface from a fluidised bed (20) of the bonding agent.  Where one sheet is metal, the heat  can  be  generated  by  passing an electric current through the metal.    The  electrical  resistance  of the metal  sheet  can  be  used  as  a  measure  of the sheet temperature.
Patent CA-2011397-A1 (CA)
Title: Method and Apparatus for Cleaning Electronic and Other Devices
Inventor: MITTAG MICHAEL T
IPC: B08B3/08
Filed: 1990-03-02
Abstract: A method and apparatus for cleaning workpieces, particularly printed circuit boards upon which electrical components have been soldered, is capable of using a potentially flammable or explosive liquid cleaning solvent.  In one embodiment, there are two immersion wash stages between which is a spray wash stage.  The spray wash stage is formed as a closed chamber which is sealed when the immersion wash stages by liquid seals.  To reduce the danger of fire or explosion in the spray wash stage an inert gas such as Nitrogen is introduced into the closed chamber.  In another embodiment the spray nozzles are immersed in liquid solvent in a combined immersion/spray wash stage.  This reduces atomization of the flammable solvent further reducing the danger of fire or explosion.
Patent CA-2011635-A1 (CA)
Title: Electrical outlet with visual markings
Inventor: SHORROCK NELSON D
IPC: H01R13/631
Filed: 1990-03-07
Abstract: ELECTRICAL OUTLET WITH VISUAL MARKINGS     ABSTRACT OF THE DISCLOSURE         A conventional electrical outlet is improved by the provision of a brightly coloured, preferably white, ring around the ground opening in the front face of the receptacle.    This  ring  makes  the  receptacle  visually apparent  for  the  older  person  or  person with weaker eyesight so that the person can readily locate the elec-trical outlet and can orient the plug for insertion of the pins into the receptacle.  A marker pen is provided which has a central projection and a surrounding marking surface which can be inserted into the ground opening and rotated to provide the ring around the ground opening.
Patent CA-2011703-A1 (CA)
Inventor: MENASSA RICHARD
IPC: A45C13/02
Filed: 1990-03-07
Abstract: ABSTRACT          The present invention provides for a case for a portable computer and accessories.  The case has a top portion and a bottom portion hingedly attached together such that the top portion is movable between an open position and a closed position relative to the bottom portion.  The bottom portion includes a resilient interior filling having openings therein for firmly holding a portable computer and other accessories.  The bottom portion further has a flattened undersurface for supporting the case with the portable computer and accessories in a stable position, the case being balanced when the top portion is in the open position with the computer and the accessories therein to allow full use of the computer and accessories when in the case.
Patent CA-2012659-A1 (CA)
Inventor: BELDER EIMBERT G
IPC: C09D163/00
Filed: 1990-03-21
Abstract: The invention relates to a powder paint, comprising a polyepoxy compound, a polyester resin and customary additives, the polyester resin having an acid number ranging from 15 through 70 and a hydroxyl number of 10 or below and being substantially based on units of dicaboxylic acids, glycols and monomers of functionality three of higher, as dicarboxylic acids use is being made of at least 75 mole % of isophthalic acid and at least 5 mole % of 1,4-cyclohexane dicarboxylic acid, as the glycols use is being made of at least 50 mole % of branched aliphatic glycols with 5-11 carbon atoms, which may optionally comprise an ester group, and at most 50 mole % of aliphatic glycol with 2-6 carbon atoms, and wherein the monomers have a functionality three or higher in an amount of at most 8 mole % of dicarboxylic acids plus glycols.
Patent CA-2014897-A1 (CA)
Title: Oxygen rich air inhaler
Inventor: NISHINO SEIGOU
IPC: A61M16/10
Filed: 1990-04-19
Abstract: An oxygen rich air inhaler for use in stress relief and fatigue recovery has a casing, an inlet duct and an exhaust duct.  The casing is separated into a compressor chamber and an adsorber chamber by a partition.  The inlet duct has an inlet open to an end wall on the side of the adsorber chamber and provided at an upper portion of the adsorber chamber so as to communicate with the compressor chamber.  The exhaust duct has an exhaust outlet open to an end wall on the side of the adsorber chamber and provided at a lower portion of the adsorber chamber so as to communicate with the compressor chamber.  A suction fan and at least one compressor are disposed in the compressor chamber.  At least two adsorbers, which communicate with the compressor via a selector valve, and an oxygen rich air tank, communicating air outlets of the adsorbers, are disposed in the adsorber chamber.  An air inlet for the compressor and an exhaust outlet for air desorbed from the adsorbers are disposed downstream of the compressor chamber.  An inhalation mask communicates with oxygen rich air tank for inhaling oxygen rich air.
Patent CA-2015395-A1 (CA)
Title: Rhodomycin derivatives with cytostatic activity
Inventor: HERMENTIN PETER
IPC: A61P35/00
Filed: 1990-04-25
Abstract: Abstract of the disclosure Rhodomycin derivatives with cytostatic activity The invention relates to new anthracycline derivatives with cytostatic activity and the formula I       and the physiologically acceptable salts thereof, where R1 is hydrogen or a hydroxyl group, R2 is C1, Br, OCORx, NRaRb,  NRn-(CH2)n-NRaRb,  NRa-NRa-CO-(CH2)y-CO-NRa-NRaRb  or NRa-CHR3-CH2-R4, where Rx is C1-C6alkyl, phenyl or benzyl, n = 0-12 and y = 0-10, where Ra and Rb can each be hydrogen, C1-C4-alkyl or benzyl,  and where R3 is hydrogen or a carboxyl group and R4 is the residue of an L-amino acid or of a biogenic amine, a process for the preparation thereof and the use thereof in a pharmaceutical.
Patent CA-2016179-A1 (CA)
IPC: G06F11/08
Filed: 1990-05-07
Abstract: ONE OUT OF N CHECKING APPARATUS AND METHOD                    ABSTRACT OF THE DISCLOSURE         A one out of N checking circuit for determining whether exactly one of N signal lines is active at any given time.  The circuit includes a hierarchal structure of nodes which pairs the N signal lines together in a series of steps.  Each node includes a pair of output signal lines. The first signal line carries a signal representing whether an active signal line was "seen."  The second signal line carries a signal representing whether an error has occurred, i.e. multiple active lines were seen.  After each step, the number of signal lines is reduced by one-half until only two signal lines remain.  At that point the two signal lines are compared and a final error signal is transmitted.
Patent CA-2016357-A1 (CA)
Title: Benzoylphenylureas
Inventor: DRABEK JOZEF
IPC: C07D213/64
Filed: 1990-05-09
Abstract: Benzoylphenylureas Abstract Substituted ,N-benzoyl-N'-[2-fluoro-4-(3',chloropyridin-2-yloxy)-phenyl]-ureas of formula I                                (I), wherein R1 and R2 are both fluorine or R1 is chlorine and R2 is hydrogen, and salts thereof; processes and intermediates for the preparation of those compounds, andcompositions containing them for controlling insects, representatives of the order Acarina and snails and slugs, especially plant-destructive insects.
Patent CA-2017834-A1 (CA)
Title: Method for controlling lost circulation in well drilling
Inventor: WHITFILL DONALD L
IPC: C09K8/03
Filed: 1990-05-30
Abstract: METHOD OF CONTROLLING LOST CIRCULATION IN WELL DRILLING               Abstract of the Disclosure Loss  of  drilling  fluid  into  a  subterranean  formation penetrated in the drilling of a well is controlled by addition to the drilling fluid of a lost circulation material comprising petroleum coke.
Patent CA-2018823-A1 (CA)
Title: Polyurethane compositions exhibiting reduced smoke density and method of preparing same
Inventor: MILLER JOHN W
IPC: C08G18/38
Filed: 1990-06-12
Abstract: POLYURETHANE COMPOSITIONS EXHIBITING REDUCED SMOKE DENSITY   AND METHOD OF PREPARING SAME                 ABSTRACT OF THE DISCLOSURE A high density polyurethane foam composition which exhibits low smoke upon combustion is the reaction product of a reaction of a resin blend and an isocyanate in the presence of reduced levels of melamine as a flame retardant.
Patent CA-2020266-A1 (CA)
Title: Aqueous composition
Inventor: KANAMORI HIDEO
IPC: C10M173/00
Filed: 1990-06-29
Abstract: Disclosed is an aqueous composition prepared by mixing water in a base fluid in the presence of surfactants, which composition comprises, as the surfactants, (A) at least one of the compounds represented by the general formula:                        R1-O-(R2-O)n-H wherein R1 is an alkyl group having 3 to 10 carbon atoms, R2 is an alkylene group having 2 or 3 carbon atoms, and n is an integer of 1 to 20; when n is an integer of 2 or more, the repeating unit (R2-O) may contain both of alkylene groups having 2 carbon atoms and alkylene groups having 3 carbon atoms, and (B) at least one ionic surfactant.  The aqueous composition of the present invention is transparent in appearance, and has a low viscosity, and can employ a fluid having a high viscosity to obtain a composition of desired viscosity.  The composition is also excellent in mechanical and chemical stabilities.  In the composition, phase inversion by temperature is reversible.  The composition is useful as a lubricant, coolant or the like.
Patent CA-2020846-A1 (CA)
Title: Heterocyclic thione
Inventor: AUSTIN PETER W
IPC: C07D277/20
Filed: 1990-07-10
Abstract: ABSTRACT HETEROCYCLIC THIONE      A solvent soluble heterocyclic o-hydroxy thione carrying a lipophilic group and the process for the selective extraction of gallium, and certain other related metals, especially from solutions containing excess aluminium.
Patent CA-2021058-A1 (CA)
Title: Railroad switch machine
Inventor: KUHN STEPHEN R
IPC: B61L7/04
Filed: 1990-07-12
Abstract: ABSTRACT     An electrohydraulic switch machine for moving switch points between two defined  positions which utilizes a two position valve and which electrically resets the position of the valve each time the machine is initiated.
Patent CA-2023574-A1 (CA)
IPC: E04F11/06
Filed: 1990-08-17
Abstract: An articulating stairway,  having a  first pair of horizontally  spaced,  parallel  rails  and  a  second  pair  of horizontally spaced, parallel rails aligned above the first pair of rails.  A plurality of treads are provided, with each tread being pivotally connected between the first and second pairs of rails on two vertically aligned, parallel, horizontal axes.  The axes remain vertically aligned as one end of the stairway pivots above or below the other end of the stairway, keeping the treads level throughout.
Patent CA-2024986-A1 (CA)
Title: Thermal battery with composite electrode
Inventor: HIGLEY LIN R
IPC: H01M50/434
Filed: 1990-09-10
Abstract: THERMAL BATTERY WITH COMPOSITE ELECTRODE                 ABSTRACT OF THE DISCLOSURE    An  improved  thermal  battery  having  a  sodium composite electrode and a cathode separated by a porous separator.    The  sodium  composite  electrode  includes sodium metal and a protective metal which is effective in protecting the sodium metal from reaction with water or air.   This sodium composite structure is useful in other systems besides batteries, in order to control the reactivity of sodium.
Patent CA-2029209-A1 (CA)
Inventor: VINCIARELLI PATRIZIO
IPC: H02M3/335
Filed: 1990-11-02
Abstract: An improved forward converter switching at zero-current incorporates a mechanism for selectively regulating the amount of forward energy which is delivered to a load during each converter operating cycle.  Energy is transferred from a voltage source toward a load in discrete packets via a small effective inductance (specifically the small effective leakage inductance of a transformer) and a capacitor, the combination of which define a characteristic time scale for the rise and fall of current such that a switching device connected in series with the voltage source can be cycled on and off at zero-current.  The capacitor is connected to the load via a second inductor.  By incorporating a second bidirectional switch across the capacitor, and cycling the second switch on and off at appropriate times during a converter operating cycle, the amount of forward energy transferred toward the load may be regulated without incurring switching losses in the second bidirectional switching device, and control may also be asserted over reverse current flow from the load toward the second switch subsequent to forward energy transfer.  The new topology allows a single converter to generate a multitude of voltage outputs, all of which may be maintained in regulation as the loads on the various outputs are varied, with no minimum load being required on any output.
Patent CA-2031167-A1 (CA)
Title: Uv absorbers & products containing same
Inventor: GUPTA AMITAVA
IPC: C08F220/06
Filed: 1990-12-04
Abstract: ABSTRACT     The invention relates to UV absorbers which are benzotriazolyl hydroxy benzophenones and which may be incorporated into plastics materials or polymerised with other monomers such as acrylates or methacrylates.          The formed polymers or polymer composition may be employed for the manufacture of articles such as intraocular lens, contact lens and eyeglasses.