baber/WOPTO huggingface dataset:
Patent NO-160134-C (NO)
Inventor: MOYNE JOSE
IPC: C07C303/32
Filed: 1985-02-15
Abstract: p-Acyloxybenzene sulfonates, well suited for detergency applications, are facilely and rapidly prepared by acylating an alkali or alkaline earth metal, or ammonium p-phenol sulfonate, with an anhydride of a straight or branched chain carboxylic acid having from 7 to 12 carbon atoms, in a polar aprotic solvent and in the presence of a catalytically effective amount of an organic sulfonic acid.
Patent NO-179479-C (NO)
Inventor: FUJII TAKERU
IPC: A61K38/095
Filed: 1989-03-09
Abstract: Pharmaceutical compositions of matter adapted for intravaginal administration comprise a biologically active polypeptide, an absorption promoter, such as an anionic and/or nonionic surfactant or a nonionic surfactant and an aliphatic carboxylic acid, optionally an animal and/or vegetable protein and a nontoxic pharmaceutically acceptable carrier or diluent therefor, in a formulation suitable for intravaginal administration. Preferred compositions comprise calcitonin as the biologically active polypeptide. Preferred absorption promoters are anionic surfactants, e.g., sodium lauryl sulfate, and the combination absorption promoter of a nonionic surfactant and a medium chain aliphatic carboxylic acid or its salt, e.g. polyoxyethylenealkylphenylether and a medium chain aliphatic carboxylic acid.
Patent CA-2002107-C (CA)
Title: Couvercle de contenant
Inventor: NEWMAN ALEC THOMAS
IPC: B65D21/02
Filed: 1989-11-02
Granted: 1998-11-24
Abstract: Cette invention concerne un couvercle de gobelet qui comprend une base à collerette verticale en pourtour, la collerette ayant une paroi intérieure qui se termine par une bordure comportant au moins un trou permettant de boire le contenu du gobelet ainsi qu'une jupe adaptée pour s'ajuster à friction sur le bord dudit gobelet. La base du couvercle comporte pour sa part un trou par lequel verser la boisson ou les ingrédients de la boisson dans le gobelet.
Patent CA-2003925-C (CA)
Inventor: ARAKI SHINTARO
IPC: C07C2/86
Filed: 1989-11-27
Granted: 1999-11-23
Abstract: In a first form, a process is provided for preparing phenol by converting acetone by-produced by the cumene process into isopropanol, and alkylating benzene with the isopropanol and optional propylene, thereby forming phenol without acetone by-product. And cumene is prepared by alkylating benzene in the presence of a zeolite catalyst using isopropanol or a mixture of isopropanol and propylene as an alkylating agent. Further provided is the continuous alkylation of benzene with isopropanol wherein a reaction mixture is divided into first and second portions, with the first portion being recycled to the reactor and the second portion being taken out as a reaction product.
Patent CA-2005859-C (CA)
Title: Method of manufacturing lactulose
Inventor: DORSCHEID MICHAEL
IPC: C07H3/04
Filed: 1989-12-18
Granted: 1999-11-23
Abstract: For the manufacture of lactulose, an alkaline aqueous solution of lactose and borax is prepared and heated at a temperature above 80°C. The lactulose is separated from the resulting conversion products. Apart from the borax, no alkalising material is added to the solution. The conversion is carried out at pH 8.3.        In order to maintain the sodium ions in the production cycle, the borax may be manufactured in an aqueous solution of boric acid and already simultaneously with the lactose, while the sodium ions are transferred from the solution of the conversion products in the solution of the boric acid by electrodialysis.        Alternatively the sodium ions may also be removed from the solution of the conversion products as readily as possible by means of a weakly acid ion exchanger and only thereafter by means of a more strongly acid ion exchanger.      The weakly acid ion exchanger is regenerated with boric acid so that borax is formed again.
Patent CA-2007339-C (CA)
Title: Chest enclosure for ventilators
Inventor: HAYEK ZAMIR
IPC: A61H31/00
Filed: 1990-01-08
Granted: 1997-01-07
Abstract: A chest enclosure for inducing assisted ventilation of the lungs of a patient, when combined with an air oscillator.  The chest enclosure comprises a stiff but flexible plastic tunnel member adapted to cover the chest, provided at its upper and its lower end with an air-impermeable flexible cushion, a band of flexible material extending from along the entire lateral edges of the tunnel, said bands extending to behind the back of the patient in an overlapping relationship, means being provided for the attachment of the bands with each other, an air passageway being provided into the enclosure for connection to an air oscillator.
Patent CA-2007412-C (CA)
Title: Lateral transistor and method of making same
Inventor: DESILETS BRIAN H
IPC: H01L21/8222
Filed: 1990-01-09
Granted: 1995-01-17
Abstract: A method of  fabricating  a  lateral  transistor  is provided,  including the steps of:  providing a body of semiconductor material including a device region of a first conductivity type; patterning the surface of the device region to define a first transistor region; filling the patterned portion of the device region surrounding the first transistor region with an insulating material to a height  generally equal  to  the  surface  of with  first transistor region;  removing portions of the insulating material so as to define a pair of trenches generally bounding opposite sides of the first transistor region; filling the  pair  of  trenches  with  doped  conductive material  of  opposite  conductivity  type  to  the  first transistor region; and annealing the semiconductor body whereby to form second and third transistor regions of opposite conductivity type to the first transistor region in the opposing sides of the first transistor region.
Patent CA-2009466-C (CA)
Inventor: PRADHAN SHRIKANT P
IPC: G01N33/50
Filed: 1990-02-07
Granted: 1995-10-10
Abstract: A composition is provided for use, particular-ly in evacuated blood collection tubes, as a blood partitioning  composition.    The   composition   is useful in providing cleaner serum or plasma samples for biochemical tests,  including a wide  range  of drugs.   The  composition  includes  a balanced dual resin component which provides the desired hydro-phobic  property  while  simultaneously  controlling viscosity and the specific gravity, which component is  comprised  of  poly-alpha-pinene  resin  which provides good drug recovery but low density with a chlorinated  hydrocarbon  resin  which  provides  the proper density level while maintaining the desired hydrophobic  property of  the  resin blend.   Thixo-tropic property is achieved by adding  silica  and network stabilizer in the composition.
Patent CA-2012314-C (CA)
Title: Imidazoline compounds
Inventor: BAGGA MADAN M
IPC: C07D233/22
Filed: 1990-03-15
Granted: 2001-01-02
Abstract: Imidazoline compounds of formula   where n denotes 2 or 3, is suitable as cure accelerator in curable epoxide resin compositions comprising a latent curing agent.
Patent CA-2014313-C (CA)
Title: Gate pulse generator for static var compensator
Inventor: SATO NAOKO
IPC: H03K5/151
Filed: 1990-04-10
Granted: 1995-07-18
Abstract: A gate pulse generator for a static var compensator (SVC) constituted by a thyristor switched capacitor (TSC) comprises voltage detectors for respectively detecting forward and reverse voltages applied to antiparallel-connected thyristors in the TSC.  The antiparallel-connected thyristors comprise a plurality of series-connected forward thyristors and a plurality of series-connected reverse thyristors.  The gate pulse generator monitors the forward and reverse voltages and determines whether a period in which both the forward and reverse voltages are zero continues for a pre-determined period while reverse-phase sides of the antiparallel-connected thyristors are held in conduction periods, respectively.  The gate pulse generator pro-longs an active period of a forward conduction period signal by the predetermined period.  Upon switching from in-phase conduction to revese-phase conduction, even if some of the plurality of series-connected thyristors are turned off, these thyristors are turned on again within the predetermined period, and an overvoltage is not applied to these thyristors.
Patent CA-2017454-C (CA)
Inventor: BREANT PATRICE
IPC: C08K3/22
Filed: 1990-05-24
Granted: 1997-04-15
Abstract: Flame-retarded polymer compositions comprising a hydrated inorganic filler, at least one ethylene/alkyl (meth)acrylate copolymer and at least one copolymer of ethylene and of at least one  alpha -olefin, which compositions consist essentially of 120 to 240 parts by weight of hydrated inorganic filler per 100 parts by weight of a polymer phase consisting of: (a) 30 to 75 parts by weight of at least one ethylene/alkyl (meth)acrylate copolymer (A) having a content of alkyl (meth)acrylate of between 1 and 50 mol %, (b) 10 to 30 parts by weight of at least one ethylene/alkyl (meth)acrylate/unsaturated dicarboxylic acid anhydride terpolymer (B), (c) 5 to 55 parts by weight of at least one copolymer of ethylene and of at least one alpha -olefin (C) having a density of between 0.865 and 0.915 and a degree of crystallinity equal to at least 5%, and (d) 0 to 5 parts by weight of at least one low-density polyethylene (D). Industrial articles comprising such a flame-retarded polymer composition.
Patent CA-2021994-C (CA)
Title: Noise cancellation headset
Inventor: BOURK TERRANCE R
IPC: A61F11/14
Filed: 1990-07-26
Granted: 1996-07-23
Abstract: A headset for acoustic reproduction of an electronic signal which electronic signal is representative of the summation of a desired audio signal and an anti-noise signal.          The headset includes a headband, an earcup mounted to the headband, a driver mounted within the earcup which receives and acoustically reproduces the electronic signal, a directional microphone which detects and transduces the acoustical pressure within the earcup cavity, means for generating the anti-noise signal from the microphone signal, and a positioning member for mounting the microphone to the earcup in a position so that the microphone is acoustically coupled to the driver.  The microphone is oriented so that its vented or open face is pointing towards the driver.  If the driver is provided with an inner dome portion and an outer annulus portion the microphone is positioned by its attachment to a grille plate extending across the driver, the microphone being mounted to the grille plate on a side opposite the driver.  The grille plate includes a plurality of apertures, at least one of which is positioned proximate the center of the driver with the microphone mounted across that aperture so that the microphone is acoustically coupled to the dome portion and acoustically isolated from the outer annulus portion.
Patent CA-2025140-C (CA)
Title: Communication terminal having means for controlling power transfer
Inventor: IKEDA KOJI
IPC: H04M1/253
Filed: 1990-09-12
Granted: 1994-03-15
Abstract: ABSTRACT OF THE DISCLOSURE            A communication terminal is coupled to a communication network via transmitting and receiving signal lines and a switching system.  The communication terminal includes a power input line coupled to the transmitting and receiving signal lines, a power sink for supplying power, a switch coupled between the power input line and the power sink, a hook switch coupled between the power input line and the power sink in parallel to the switch, a detection circuit coupled to the receiving signal line for detecting a signal on the receiving signal line, a state maintaining circuit coupled to the switch and the detection circuit for closing the switch and for maintaining the switch in a closed state by carrying out a state maintaining operation when a signal is detected by the detection circuit, and a prohibit circuit coupled to the detection circuit for prohibiting a signal detection of the detection circuit.
Patent CA-2027495-C (CA)
Title: Procedure and apparatus for amplification of a burst signal
Inventor: BRAHMS MARTIN
IPC: H04L25/06
Filed: 1990-10-12
Granted: 1994-05-24
Abstract: ABSTRACT OF THE DISCLOSURE      A controllable amplifier, which has two symmetrical outputs, at which two output signals mirror-symmetrical with respect to each other are present, is used for amplification of a burst signal.  To achieve the largest possible eye opening of the signals to be fed to a comparator, a predetermined d.c. voltage difference for the formation of matched signals is adjusted for both output signals.  After this, the arithmetic mean values of the two matched signals are formed and are fed to a second comparator.  The output value of the second comparator is fed to an integrator, to which a reference voltage is also fed.  In case of a deviation of the mean values of the two matched signals from each other, the amplifier is adjusted in a compensating direction by the integrator.
Patent CA-2034589-C (CA)
Title: Isokinetic probe and pressure reduction assembly
Inventor: BURR JOHN W
IPC: G01N1/22
Filed: 1991-01-18
Granted: 1994-10-18
Abstract: Isokinetic Probe And Pressure Reduction Assembly ABSTRACT A gas sampling apparatus wherein a retractable isokinetic probe is insertable into a gas flow line through aligned guide tubes and a gas sample is isokinetically conveyed to a converging-diverging nozzle where its pressure is reduced by a controlled shock wave.
Patent CA-2037167-C (CA)
Title: Fishing lure and method
Inventor: DIPAOLA FRANK ALBERT
IPC: A01K85/08
Filed: 1991-02-27
Granted: 1996-08-27
Abstract: This  invention  relates  to  a  fishing  lure  having  a flexible  body  portion.   The  body  portion  has  means  for attaching a hook to one end and a fishing line to the other end.  The body portion is formed by a flexible core element with radially extending flexible fibers from the core element.        Because of the flexibility of the radially extending fibers, a "soft" body portion is formed resulting in the advantage that the fish has a tendency to keep the lure in its mouth longer.          The fibers are longer at the middle of the body portion and continually get shorter towards the ends in a tapering fashion such that the body portion has a minnow-like shape.  The body portion, further, has memory characteristics such that it can be shaped into various configurations and can travel through water and remain in a set configuration.  When a fish strikes the  lure  the  body portion will  flex  reducing the  fish's mechanical advantage to help maintain the fish on the lure.
Patent CA-2041122-C (CA)
Title: Production of concentrated aqueous polyphosphate solutions
Inventor: SIKORSKI CHARLES F
IPC: C01B25/42
Filed: 1991-04-24
Granted: 1995-06-27
Abstract: A concentrated aqueous alkali metal polyphosphate solution is prepared by adding polyphosphoric acid hav-ing a P2O5 assay of about 82% to about 85% to a quantity of concentrated aqueous alkali metal hydroxide suf-ficient to neutralize the acid.  The resulting polyphos-phate solution is richer in pyrophosphate and tripoly-phosphate moieties than the acid.
Patent CA-2044619-C (CA)
Title: Preparation method for .alpha.,.beta.-unsaturated ketones
Inventor: SAWAKI MIKIO
IPC: C07C45/66
Filed: 1990-11-15
Granted: 1998-02-24
Abstract: .beta.-hydroxyketones are prepared by reacting an aldehyde with acetone in the presence of perhydroisoindole or pyrrolidine and water. The resulting .beta.-hydroxyketone is further reacted in the presence of a solvent mixture to produce .alpha.,.beta.-unsaturated ketones.
Patent CA-2061820-C (CA)
Title: Drainage system and method of drainage extruded window frame sills
Inventor: DALLAIRE RAYMOND
IPC: E06B7/14
Filed: 1992-02-25
Granted: 1995-04-11
Abstract: A drainage system and method of draining extruded window sill frames is disclosed.  The drainage system includes a drain cap which provides two separate drain paths for the sill.  The drain cap is installed in a drainage orifice in the bottom edge of the outer sill face.  The drain cap includes a ramp portion for directing water draining from the front of the sill through one of the drain paths, water from the rear of the sill being permitted to drain through the other drain path.  The drain cap is installed using a method whereby a drainage path is formed through any longitudinal portions in the sill which are intermediate the drainage orifice in the bottom of the outer sill face and drain apertures in the sill surface.  The drainage path is preferably formed using a horizontal drilling machine equipped with a drill bit having at least two drill diameters for piercing two concentric holes in a single pass.  Alternatively, two or more bits are used for drilling two or more holes which are acentric but coextensive.
Patent CA-2065039-C (CA)
Title: Resin compound
Inventor: UEHARA SHOTARO
IPC: C08K7/00
Filed: 1990-08-14
Granted: 2001-12-04
Abstract: A resin compound having superior electrical, mechanical, and molding properties that includes a synthetic resin and car-bon fibrils. At least 50 wt% of the fibrils are intertwined to form fibril agglomerates whose diameter is in the range of 0.10-0.25 mm.
Patent CA-2067347-C (CA)
Title: Device for continuous contacting of liquids and solids
Inventor: MATONTE PHILIP J
IPC: B01J47/10
Filed: 1990-10-22
Granted: 2000-01-18
Abstract: A liquid-solid contacting device which includes a plurality of chambers (101) for solid particulate material, such as zeolite for ion exchange is described, The chambers are mounted on a rotatable carriage (102) about a central axis (A). A cylindrical valve (301) at the central axis controls the flow of liquid to the respective chambers as he chambers rotate at a constant speed about the central axis. The valve arrangement controls both the flow into and out of the individual chambers, and includes a stationary cylinder (302) and a rotating cylinder (303). Outlet tubes (309) and inlet tubes (310) connect the chambers (101) individually to transitional tubes (416, 417) in the interior of the rotating cylinder (303). Stationary inlet ports (307) and stationary outlet ports (308), are provided in the stationary cylinder (302). As the rotating cylinder (303) rotates, the ports (426) are successively aligned with the ports (307) and the ports (427) are aligned with the ports (308) to allow flow of fluid through the tubes (305, 306),
Patent CA-2068792-C (CA)
Title: Color cathode ray tube having intermediate layer between face plate and tricolor phosphor layer
Inventor: IWASAKI YASUO
IPC: H01J29/28
Filed: 1992-05-15
Granted: 1998-11-17
Abstract: A color cathode ray tube includes an intermediate layer between the face plate and the tricolor phosphor layer. The intermediate layer is a selective light absorption layer or a neutral filter layer. The selective light absorbing function and the uniform light absorbing function are imparted, not to the functional film on the outer surface of the face plate, but to the intermediate layer formed on the surface of the face plate facing the electron gun, namely, on the inner surface of the face plate. The mechanical strength of the functional film is thus enhanced.     .    .
Patent CA-2068856-C (CA)
Inventor: PARET ALAIN
IPC: C01B21/072
Filed: 1992-05-15
Granted: 2002-08-13
Abstract: La présente invention concerne un procédé de raffinage dans un four d'un calcium contenant plus de 0,1% en poids d'aluminium, sous forme de CaAl2, caractérisé en ce qu'on nitrure le calcium introduit dans un four pour former Ca3N2 et en ce qu'on fait réagir Ca3N2 avec CaAl2 initialement présent dans le calcium à raffiner et avec de l'aluminium en grains de manière à former du calcium isolable sous forme de calcium à haute pureté contenant moins de 0,1% en poids de  A1 et à former un nitrure d'aluminium (A1N) qui constitue une matière première de valeur.
Patent CA-2070369-C (CA)
Title: Apparatus and method for d.c. motor control
Inventor: SCHMID GEROLD
IPC: H02P7/00
Filed: 1992-06-03
Granted: 1997-04-22
Abstract: A control for a d.c. motor having a d.c. thyristor power supply connected to a d.c. motor and a control circuit for selectively varying and controlling the level of the current provided by the thyristor power supply to the motor.          The thyristor power supply provides a plurality of selected output current levels to the motor and the motor has a corresponding plurality of torque levels.  The level of the output current supplied by the power supply to the motor is independent of the resistance in the motor circuit.  The motor is rotatable in opposite directions and the thyristor power supply will provide output voltage at opposite pluralities corresponding to the rotational direction of the motor.
Patent CA-2070689-C (CA)
Title: New aqueous formulations
Inventor: CHEN CHI-YU R
IPC: B65D81/32
Filed: 1992-06-08
Granted: 2003-09-23
Abstract: A composition, which is suitable for containment in a water soluble bag as a liquid or a gel, contains a hazardous product and an electrolyte and water and other additives. Typical hazardous products include agrochemicals such as pesticides, plant growth regulators, plant nutrients. Optionally the composition contains a thickener, a solvent, a dispersant. The water soluble bags used as containerization systems for these compositions may be made of polyvinylalcohol,
Patent CA-2074990-C (CA)
Inventor: KANOH TOSHIYUKI
IPC: H04J3/04
Filed: 1992-07-30
Granted: 1999-04-27
Abstract: In a data processing device for use in a carrier transmission system in processing a device input signal of a plurality of channels, a single data processing circuit (21) and a multiport RAM (33) are used together with a write and read clock counter (51(1)) in place of a great number of data processing circuits, equal in number to an integral multiple of the number of channels, and a likewise great number of sequential circuits, such as D-type flip-flops.  Through a supply arrangement which is preferably a selector (41) for selectively supplying a test signal to the RAM, a processed output signal is supplied from the data processing circuit to the RAM as a processed input signal for storage as memorized signals according to the channels and for read out as a device output signal.  If desired, additional clock counters (51(2)) to 51(N) are used for read out of the memorized signals as additional device output signals.  The stored test signal may be read out as RAM test output signal, which can be processed by the data processing circuit, supplied through the selector, stored in the RAM, and read out as a processing circuit test output signal.
Patent CA-2075641-C (CA)
Title: Dispositif de reglage pour article de sport
Inventor: POZZOBON ALESSANDRO
IPC: A63C17/06
Filed: 1991-12-06
Granted: 1999-06-15
Abstract: Dispositif de réglage pour un patin à roulettes comprenant un support (3) pour une chaussure (4) et au moins deux roulettes alignées l'une sur l'autre (5). Le dispositif est caractérisé en qu'il comporte, montés entre lesdites roulettes, une vis (6) permettant le réglage de la distance séparant celles-ci, ainsi que des systèmes cinématiques (14a, 14b) assurant la liaison avec le support. Grâce à ce dispositif, on peut modifier la distance séparant le support pour chaussure de l'axe d'une ou plusieurs roulettes alignées du patin.
Patent CA-2075860-C (CA)
Title: Radio link architecture for wireless communication systems
Inventor: STRAWCZYNSKI LEO
IPC: H04W36/16
Filed: 1992-08-12
Granted: 1999-07-13
Abstract: An improved radio link architecture for digital wireless communication systems which is characterized by the use of information and signalling channels on a number of RF carriers, thereby providing common signalling channels for call set-up and control functions.  A first group of RF carriers are allocated as traffic channels between base stations and subscriber terminals.  Each RF carrier in the first group comprises at least one traffic channel.  A second group of RF carriers is allocated for providing common signalling channels between the base stations and the subscriber terminals.  Each RF carrier having common signalling channels operates in time division multiple access mode, and each common signalling channel being time division duplexed.