baber/WOPTO huggingface dataset:
Patent CA-2236510-A1 (CA)
Title: Two stage variable flow valve assembly
Inventor: SUMMERS PAUL
IPC: B67C3/28
Filed: 1998-05-04
Abstract: A two stage variable flow valve assembly for use in fluid handling.  The valve assembly includes a body with a flow restrictor disposed therein to define two internal chambers which are closed at one end by a wall and open at the opposite end by a discharge opening.  A valve having a bulb and a profiled valve stem extends axially through and is movable within the internal chambers to open and close the valve assembly for flow therethrough.  Flow is halted through the valve assembly when a portion of the profiled valve stem enters the flow restrictor, prior to the bulb's closing of the discharge opening.
Patent CA-2236793-A1 (CA)
Title: Malathion carboxylesterase
Inventor: ROBIN GEOFFREY CHARLES DE QUET
IPC: C02F3/00
Filed: 1996-11-22
Abstract: The present invention provides an isolated DNA molecule encoding Malathion Carboxylesterase capable of hydrolysing at least one organophosphate selected from the group consisting of carboxylester organophosphates and dimethyloxon organophosphates. The DNA  molecule comprises a nucleotide sequence having at least 60 %, preferably at least 80 % and more preferably at least 95 % homology with Lc.alpha.E7, in which the protein encoded by the DNA molecule differs from E3 at least in the substitution of Trip at position 251 with an amino acid selected from the group consisting of Leu, Ser, Ala, Ile, Val, Thr, Cys, Met and Gly. The preferred substituents are Leu and Ser.
Patent CA-2237679-A1 (CA)
Title: Double layer capacitor with porous carbon electrodes and method for manufacturing these electrodes
Inventor: ZJUKOV SERGEJ GERMANOVITJ
IPC: H01G11/32
Filed: 1996-02-02
Abstract: A double electric layer capacitor comprising at least two electrodes (4, 5), substantially of porous carbon, the electrodes being substantially saturated with electrolyte and separated by means of a porous separator (6) with ionic conductivity. The capacitor is especially characterized in that the electrodes (4, 5) in the form of a porous structure are made of materials with a carbon content exceeding 95 % mass and a pore volume exceeding 55 % of the electrode material volume, a certain part of the pores having a size less than 10 nm.
Patent CA-2238141-A1 (CA)
Inventor: WARBURTON PIERS RICHARD GROVE
IPC: G01N1/00
Filed: 1998-06-23
Abstract: A gas sensor, (8) includes a body, (10) that is shaped to define a chamber (14). An electrolyte (34) is contained in the chamber (14) and three electrodes (26, 28 and 30) that are located on an electrode substrate (24) are disposed in contact with the electrolyte. The body, (10) is electrically connected to the three electrodes. A cover (36) engages the body (10) to enclose the chamber (14). A resistor array (58a-58n) is located between the cover (36) and the electrode substrate (24). The resistors (58a-58n) are coated with a compound that emits a predetermined gas in response to temperature increase. To test the sensor (8), voltage is selectively applied to the resistor array (58a-58n) to introduce the gas to the gas diffusion path of the sensor (8).
Patent CA-2240038-A1 (CA)
Title: 4-substituted piperidine analogs and their use as subtype selective nmda receptor antagonists
Inventor: BIGGE CHRISTOPHER F
IPC: A61K31/4427
Filed: 1996-12-20
Abstract: Novel 4-substituted piperidine analogs, pharmaceutical compositions containing the same and the method of using 4-substituted piperidine analogs as selectively active antagonists of N-methyl-D-aspartate (NMDA) receptor subtypes for treating conditions such as stroke, cerebral ischemia, central nervous system trauma, hypoglycemia, anxiety, convulsions, aminoglycoside antibiotics-induced hearing loss, migraine headaches, glaucoma, CMV retinitis, chronic pain, opioid tolerance or withdrawals, or neurodegenerative disorders, such as lathyrism, Alzheimer's Disease, Parkinsonism and Huntington's Disease are described. Also described are novel methods for preparing 4-substituted piperidine analogs and novel intermediates of the 4-substituted piperidine analogs.
Patent CA-2247970-A1 (CA)
Title: Method of making segmented core optical waveguide preforms
Inventor: BERKEY GEORGE E
IPC: C03B37/018
Filed: 1998-09-23
Abstract: A method of making a segmented core optical waveguide preform for making fiber that is resistant to attenuation increases due to hydrogen and heat aging.  A first core region comprising a silica glass rod containing at least a first dopant is inserted into a central opening of a second core region comprising silica soot containing a second dopant.  The first core region and second core region are consolidated together to form a segmented core region and cladding is deposited on the outer surface of the segmented core region.
Patent CA-2248308-A1 (CA)
Inventor: SMITH MARK A
IPC: B02C18/22
Filed: 1997-02-05
Abstract: La présente invention concerne un système de convoyeur à bande (10) conçu pour approvisionner en pneus de véhicules une broyeuse (14). Le supportage des longueurs télescopiques (30, 32) constituant ce système permet de positionner provisoirement l'extrémité débitrice d'une première longueur (30) du convoyeur à bande par rapport à l'orifice d'introduction (18) de la broyeuse. Ce supportage permet également de positionner, avec possibilité de réglage, l'extrémité d'introduction d'une seconde longueur (32) du convoyeur à bande à une hauteur convenant au chargement des pneus.
Patent CA-2248629-A1 (CA)
Title: Enzymes combinations for destroying proliferative cells
Inventor: CAMERON BEATRICE
IPC: A61K48/00
Filed: 1997-03-12
Abstract: Enzyme combinations useful for destroying cells, particularly proliferative cells, are disclosed. Vectors enabling the intracellular expression and transfer of said enzyme combinations, as well as the therapeutical use thereof, particularly in anti-cancer gene therapy, are also disclosed.
Patent CA-2249081-A1 (CA)
Title: Liquid petroleum gas submersible electric motor driven pump and drive coupling therefor
Inventor: YOUNG DAVID STERLING
IPC: F04D13/08
Filed: 1998-09-29
Abstract: A submersible electric motor driven pump includes a motor assembly having an elongated tubular motor housing, an electric motor disposed in the motor housing, and a rotary motor shaft having an output end which extends from the electric motor; and a pump assembly including an elongated tubular pump housing, a driven pump shaft having external spline teeth at an end thereof, and at least one centrifugal impeller disposed on the pump shaft. A drive coupling is fixed to the output end of the motor shaft and has internal spline teeth which are slidably engaged with the external spline teeth of the pump shaft. The drive coupling transmits rotational power from the electric motor to the pump shaft, with the end of the pump shaft being operative to float axially within the drive coupling. A flanged interface surrounds the drive coupling and rigidly joins the motor assembly and the pump assembly together coaxially end to end in a sealed manner.
Patent CA-2249454-A1 (CA)
Title: Diabetes treatment
Inventor: SMITH MARGARET ELIZABETH
IPC: A61K38/33
Filed: 1997-03-21
Abstract: Diabetes mellitus type I or II is treated by use of a peptide including an amino acid sequence corresponding to that of an active C-terminal fragment of .beta.-endorphin or an active analogue of a C-terminal fragment of .beta.-endorphin.
Patent CA-2250212-A1 (CA)
Title: Device and method for multiple analyte detection
Inventor: RAGUSA ROBERT P
IPC: B01L7/00
Filed: 1997-04-02
Abstract: The invention is directed to a method and device for simultaneously testing a sample for the presence, absence, and/or amounts of one or more a plurality of selected analytes. The invention includes, in one aspect, a device for detecting or quantitating a plurality of different analytes in a liquid sample. The device includes a substrate which defines a sample-distribution network having (i) a sample inlet, (ii) one or more detection chambers, and (iii) channel means providing a dead-end fluid connection between each of the chambers and the inlet. Each chamber may include an analyte-specific reagent effective to react with a selected analyte that may be present in the sample, and detection means for detecting the signal. Also disclosed are methods utilizing the device.
Patent CA-2250239-A1 (CA)
Inventor: ANTONOPOULOS-MCIVOR FRANCES
IPC: A45D29/00
Filed: 1997-03-31
Abstract: A hand-held nail polish removal tool (10) for use in removing nail polish comprises a hollow base portion (12) for receiving and containing nail polish remover (17). A cap portion (14) is secured to the hollow base portion (12) with the nail polish remover (17) receivable into the cap portion (14) from the hollow base portion (12). At least one rest member (28) is secured to either, or both, the hollow base portion (12) and/or the cap portion (14). A porous applicator material (16) is removably secured to the cap portion (14) with the nail polish remover (17) receivable into the porous material (16) from the cap portion (14), and substantially retained within the porous material (16) such that contacting pressure of the porous material (16) with a fingernail, or the like, releases at least a partial amount of the nail polish remover (17) from the porous material (16) onto the fingernail, or the like. The rest member (28) maintains a fluid level of the nail polish remover (17) at a position below the porous applicator material (16) when the removal tool (10) is positioned upon a substantially level horizontal surface.
Patent CA-2252060-A1 (CA)
Title: Method and composition for corrosion and deposition inhibition in aqueous systems
Inventor: KESSLER STEPHEN M
IPC: C02F5/10
Filed: 1998-11-23
Abstract: A method of stabilizing aqueous system solubility of a transition metal salt, polymeric agent corrosion/deposition control combination at neutral pH is disclosed. The addition of an aliphatic hydroxycarboxylic acid to such corrosion/deposition control combinations was found to enhance corrosion/deposition inhibition while providing for a stabile combination at neutral pH.
Patent CA-2253951-A1 (CA)
Title: .delta.1,2bicyclo[4,4,0] functional dyes for contrast enhancement in optical imaging
Inventor: RAJAGOPALAN RAGHAVAN
IPC: C07D417/14
Filed: 1997-05-09
Abstract: This invention provides functional dyes of general formula (1) wherein R1, R2, and R5 may be the same or different and are selected from the group consisting of hydrogen, C1-C10 alkyl, C1-C10 alkoxyl, hydroxyl, C1-C10 hydroxyalkyl, C1-C10 alkoxyalkyl, C1-C10 aryl, carboxyl, C1-C10 carboxylalkyl, halogen, nitro, C1-C10 alkoxycarbonyl, mercapto, C1-C10 mercaptoalkyl, C1-C10 alkylthio, sulfonate, and -(CH2)m-N(R6)(R7) wherein R6 and R7 are independently hydrogen or C1-C10 alkyl, C1-C10 acyl, and R6 and R7 are capable of forming 5, 6, or 7 membered rings which may optionally be substituted with -O-, -NR8, or -S-; R3 and R4 may be the same or different and are selected from the group consisting of C1-C10 alkyl, C1-C10 hydroxyalkyl, C1-C10 alkoxyalkyl, C1-C10 aryl, C1-C10 carboxylalkyl, C1-C10 alkyl sulfonate, mercaptoalkyl and -(CH2)m-N(R6)(R7); W1 and W2 may be the same or different and are selected from the group consisting of -S-, -O-, -Se-, -Te-, -NR8 and C(R9)(R10); and m is about 0-10; R8 is hydrogen, C1-C10 alkyl, C1-C10 alkoxy, C1-C10 mercaptoalkyl, hydroxyl, C1-C10 hydroxyalkyl, C1-C10 alkoxyalkyl, C1-C10 aryl, C1-C10 carboxylalkyl, C1-C10 alkoxycarbonyl, C1-C10 alkylthio, and -(CH2)m-N(R6)(R7); R9 and R10 are independently hydrogen, C1-C10 alkyl, C1-C10 alkoxyl, C1-C10 hydroxyalkyl, C1-C10 alkoxyalkyl, C1-C10 carboxyalkyl, C1-C10 alkoxycarbonyl, and -(CH2)m-N(R6)(R7); and A or B may be the same or different and are selected from the group consisting of -(CH2)m, -C(R9)(R10), -(CH2)m-N(R6)(R7), -O-, -S-, or -NR8.
Patent CA-2255868-A1 (CA)
Title: Locking device for curtains, awnings and the like
Inventor: BERGAMASCHI GIOVANNI
IPC: E06B9/80
Filed: 1997-05-20
Abstract: A locking device for curtains, awnings and the like, mounted to a hollow roller (31) assembly (30) on which, and from which, a curtain (32) is rolled up and unrolled, features a support (40) with a cavity (41) made therein.     The support (40) can be integrally coupled with the roller (31) and inside its cavity (41) it accommodates coaxially and rotatably at least one substantially cylindrical locking element (50). The locking element (50) includes friction means (51) comprising a band of elastic material that elastically rubs on the support (40) so as to hinder its free rotation by friction action when the curtain (32) is not subjected to any external pull.
Patent CA-2256762-A1 (CA)
Title: Verre bioactif injectable dans une suspension de dextran
Inventor: WILSON JUNE
IPC: A61K6/898
Filed: 1997-05-29
Abstract: La présente invention concerne des suspensions aqueuses injectables de verre bioactif et de dextrans destinées à la réfection chirurgicale de tissus mous ou d'os durs de mammifères, en particulier chez l'homme.
Patent CA-2257652-A1 (CA)
Title: Image reading apparatus
Inventor: FUTATSUKA MASAHIKO
IPC: H04N1/04
Filed: 1993-03-19
Abstract: A paper feed roller (5) is divided into a first roller (5a) and a second roller (5b); a slit (58) through which about 10 to 20 sheets of documents can pass is formed between the first roller and a gate plate (57) opposite to this; and the paper fed out therefrom is fed out to a space between the second roller (5b) and a separation pad (7) in contact with this.     Also, there is adopted a construction in which the pressing force of a paper conveyance spring is transformed by a slide cam sliding in a direction parallel to the paper feed roller; and the paper width detection sensor is assembled by a fitting construction.
Patent CA-2260044-A1 (CA)
Inventor: POSTE GEORGE HENRY
IPC: A61K45/00
Filed: 1997-07-14
Abstract: L'invention concerne un procédé de traitement et/ou de prophylaxie contre la résistance à la leptine et/ou d'états associés à la résistance à la leptine, et/ou de complications affectant des mammifères humains ou non humains. Ce procédé consiste à administrer par voie interne une quantité efficace, non toxique et pharmaceutiquement acceptable d'un sensibilisant à la leptine ou d'un dérivé pharmaceutiquement acceptable de celle-ci.
Patent CA-2261303-A1 (CA)
Title: Method for removing color from ionically dyeable polymeric materials
Inventor: BERKSTRESSER GORDON A IV
IPC: D06P5/13
Filed: 1999-02-05
Abstract: A method for removing color and extracting dyes from ionically dyeable polymeric materials is provided. The method includes contacting the ionically dyeable polymeric material with a swelling agent for the material under conditions sufficient to effect diffusion of the dye from the material. The process is especially useful for removing colors from ionically dyeable polymeric materials as part of a recycling process for such materials. Also, the extracted dye may be recovered for re-use as the swelling agent and contacting composition are substantially non-reactive with the dye.
Patent CA-2263080-A1 (CA)
Title: Solid state polymer batteries and method for manufacturing the same
Inventor: MURAOKA HIROKI
IPC: H01M10/05
Filed: 1999-02-26
Abstract: The invention relates to a polymer battery. A thin perforated collector is disposed in flushed state on the outer end surface of the positive electrode active material layer or the collector is embedded in the positive electrode active material layer so that the bottom plane facing the negative electrode is present at the position of 2/3 to 4/5 of the total thickness of the layer from the side facing the negative electrode. The collector of the positive electrode is prevented from peeling off from the positive electrode active material layer and besides the utilization ratio of the positive electrode active material is enhanced.
Patent CA-2264543-A1 (CA)
Title: Carbamate functional polymers and compositions containing same
Inventor: RARDON DANIEL E
IPC: C08G63/91
Filed: 1997-09-02
Abstract: A novel polyester is provided comprising the reaction product of: (1) an acid functional polyester which is prepared from: (a) a dihydroxycarboxylic acid of structure (I), wherein X is a lower alkyl group having from about 1 to about 4 carbon atoms, and R and R' are independently lower alkylene groups having from about 1 to about 4 carbon atoms; (b) a polyol different from (a); and (c) a polyacid; and (2) a monoepoxide containing from about 3 to 20 carbon atoms.  The reaction product is carbamoylated. The carbamoylated polyester can be present in a film-forming composition also having a carbamate functional acrylic polymer and an aminoplast cross-linking agent. Also such a film-forming composition can be a clear coat in a multi-component composite coating composition.
Patent CA-2265190-A1 (CA)
Inventor: WEHRMANN ROLF
IPC: G02F1/155
Filed: 1999-03-10
Abstract: Process for producing an ion storage layer from vanadium oxide or niobium oxide, or from a vanadium oxide or niobium oxide comprising lithium ions, for an electrochromic layer system, in which the ion storage layer is produced from an aqueous solution on a substrate by a sol-gel process within a temperature range from 40 to 150°C.
Patent CA-2265529-A1 (CA)
Title: Cold forming tap having internal finish cutting edge and method of producing the same
Inventor: HAYASHI SHIGERU
IPC: B23G7/02
Filed: 1997-07-16
Abstract: A cold forming tap with an internal finish cutting edge including an external thread portion having radially outwardly protruding portions and relief portions which are alternately located in a helical direction in which an external thread extends, the protruding portions capable of being forced into a surface of a prepared hole which has been previously formed through a workpiece, to thereby form an internal thread on the surface, and wherein an improvement comprises: at least one of the protruding portions having a root diameter larger than that of the other of the protruding portions, the at least one of the protruding portions being removed down to a root of the external thread, and a flute being formed in a portion corresponding to the root of the at least one of the protruding portions, so as to provide the cutting edge in the portion corresponding to the root.
Patent CA-2270439-A1 (CA)
Title: Water on fire appearing water displays
Inventor: DOYLE JAMES
IPC: F23N1/00
Filed: 1999-04-30
Abstract: Water on fire appearing water displays characterized by a burning fuel/air mixture entrained in a stream of water.      The display uses a self entraining nozzle disposed at a proper level in a body of water, with a source of flammable gas provided a flow of gas to the lower pressure portion of the air entraining region of the nozzle and with the proper flow rate to obtain a combustible mixture of fuel/air entrained in the air stream. Coordinated variation of the water and gas flow under computer control provided a dynamic display while maintaining the flame throughout the variations. Other features are disclosed.
Patent CA-2270962-A1 (CA)
Title: Fax machine with automatic adjustment of transmission parameters
Inventor: CASTET PHILIPPE
IPC: H04N1/333
Filed: 1997-10-30
Abstract: The fax machine designed to be connected to a telephone network (10) comprises means (1) for transmitting and receiving faxes, means for adjusting (2) the value of one transmission and reception parameter for adapting it to the network and corresponding fax machines, means (3) for monitoring the telephone connection in order to control the adjusting means (2), the adjusting means (2) comprising a memory (25) for storing at least a series of past and adapted values of said parameter, constituting a range of values, means (26) for reading the memory (25) and extracting therefrom a value of the range to be applied in the adjusting means output (2).
Patent CA-2273195-A1 (CA)
Title: Icam-4 and diagnostic uses thereof
Inventor: KILGANNON PATRICK D
IPC: C07K14/47
Filed: 1998-10-02
Abstract: Methods for quantitating concentration of circulating ICAM-4 in association with various neurodegenerative disorders are provided.
Patent CA-2276339-A1 (CA)
Inventor: THERRIAULT DONALD J
IPC: A61K47/30
Filed: 1998-02-23
Abstract: A graft copolymer pressure sensitive adhesive is provided comprissed of a backbone polymer having a polymeric moiety grafted thereto. The copolymer comprises at least one A monomer consisting of a monomeric (meth)acrylic acid ester of a non-tertiary alcohol, optionally at least one B monomer, optionally at least one polymeric graft moiety C having a Tg greater than 20 ~C, and a macromeric graft moiety D containing repeat hydrophilic units. The adhesive may be used with advantage in a transdermal drug delivery system in homogeneous admixture with a pharmacologically active agent.
Patent CA-2277337-A1 (CA)
Title: Fluid control device
Inventor: MOROKOSHI HIROSHI
IPC: G05D7/06
Filed: 1999-07-09
Abstract: A fluid control device comprises a massflow controller having an inlet channel and an outlet channel, an inlet-side lower block coupling having a channel upwardly opened and communicating with the inlet channel of the massflow controller, an inlet-side connecting member adjacent to the inlet-side lower block coupling and having a channel opened upward, an inlet-side upper block coupling having an inverted V-shaped channel for holding the channel of the inlet-side lower block coupling in communication with the channel of the inlet-side connecting member, an outlet-side lower block coupling having a channel upwardly opened and communicating with the outlet channel of the massflow controller, an outlet-side connecting member adjacent to the outlet-side lower block coupling and having a channel opened upward, and an outlet-side upper block coupling having an inverted V-shaped channel for holding the channel of the outlet-side lower block coupling in communication with the channel of the outlet-side connecting member.
Patent CA-2277564-A1 (CA)
Inventor: HACHIDA MITSUHIRO
IPC: A61K31/365
Filed: 1999-07-13
Abstract: Disclosed are an inhibiting agent against platelet-derived growth factor increase, an arteriosclerosis preventive and therapeutic agent, and an arterial intimal thickening inhibiting agent, comprising as an active ingredient a diterpene selected from a compound represented by formula (I), (see image I) a compound represented by formula (II), (see image II) wherein X1, X2 and X3 independently represent a hydroxyl group or a hydrogen atom, and derivatives thereof, utilizing an ability of inhibiting an increase of platelet-derived growth factor as an index.
Patent CA-2283000-A1 (CA)
Inventor: EMMERICH RUDOLF
IPC: B29C57/00
Filed: 1999-09-22
Abstract: With a device for heating parts 8 made of a microwave absorbing plastic and having a microwave generator 1 that generates microwaves of a certain wavelength, an antenna 4 to which the microwaves are conducted, having at least one free end 5 and a device 6 which surrounds the antenna 4, it is proposed that the device for shielding 6 be designed with a tubular shape, so that the device 6 has an inside diameter smaller than half the wavelength, projects beyond the free end 5 of the antenna and has an opening 7 in its end face. With this device it is possible to achieve a spatially limited and nevertheless homogeneous heating of parts 8. Furthermore a method of heating or welding, shaping or crosslinking parts made of a microwave absorbing plastic using this device is also proposed.