baber/WOPTO huggingface dataset:
Patent CA-2239563-A1 (CA)
Title: Tone transmission over cable sheaths for cable location
Inventor: VOKEY DAVID E
IPC: G01V3/06
Filed: 1998-06-03
Abstract: A transmission enhancement system is used for strengthening low frequency cable locating signals on the metallic shields of long underground cables. The system includes equalization circuits on the cable armour or shield at regular intervals, for example at splice locations. The equalization circuit includes an inductor that significantly reduces the rate of attenuation of the low frequency tone signal and greatly enhances the strength of the signal at distances where the signal would otherwise be very weak or unusable. The equalization circuit may be a resonant circuit having a capacitor connected in parallel with the inductor. The capacitor compensates for the inductor's attenuation of high frequency tones for local location purposes. The preferred embodiments of the equalization circuit include a surge arrestor coupled in parallel with the inductor and capacitor.
Patent CA-2239815-A1 (CA)
Title: Procede et appareil de conservation de cellules
Inventor: HOUCK RAYMOND K
IPC: C12N5/0789
Filed: 1997-10-31
Abstract: La présente invention concerne un appareil destiné à la conservation de cellules (200). En l'occurrence, l'appareil comprend un mécanisme d'incubation de cellules qui dispose d'un environnement dynamiquement contrôlé dans lequel sont mises en culture les cellules qui sont ainsi maintenues dans un état voulu. Dans ce mécanisme d'incubation, on conserve la possibilité d'examiner les cellules sans les sortir de cet environnement dynamiquement contrôlé, et ce, tout en les maintenant dans l'état voulu. L'appareil comporte également un mécanisme d'évaluation de l'état des cellules. Ce mécanisme d'évaluation communique avec le mécanisme d'incubation. L'invention concerne également un procédé de conservation des cellules. Ce procédé consiste à faire incuber les cellules dans un environnement dynamiquement contrôlé dans lequel sont mises en culture les cellules qui sont ainsi maintenues dans un état voulu, environnement dans lequel on conserve la possibilité d'examiner les cellules sans les sortir de cet environnement dynamiquement contrôlé, et ce, tout en les maintenant dans l'état voulu. Le procédé consiste en outre à évaluer l'état des cellules.
Patent CA-2239932-A1 (CA)
Title: Compositions from solanum muricatum (pepino) which induce tumor cell apoptosis
Inventor: TANG DEAN G
IPC: A61K36/81
Filed: 1998-07-15
Abstract: The invention relates to the use of an aqueous extract of the plant Solanum muricatum (CSG) to prepare a pharmaceutical composition useful to selective inhibit tumor growth both in vivo and in vitro. The LD50 value is 561-825 µg/ml. In contrast, CSG showed a much lower cytotoxity to human normal cells, with LD50 value 2.8-3.2 mg/ml, 3-6 fold higher than tumor cells. CSG-mediated tumor growth inhibition is through induction of apoptosis as manifested by (i) typical apoptotic morphology; (ii) DNA ladder formation; and (iii) PARP cleavage assay. The present invention represents new compounds which preferentially target tumor cells by triggering apoptosis.  CSG may be used either as a drink, with or without additional ingredients, or transformed into a capsule.
Patent CA-2240815-A1 (CA)
Title: Load distribution platform
Inventor: MORISON ALAN BRUCE
IPC: E02D27/01
Filed: 1998-06-16
Abstract: A load distribution platform has a metal framework having a peripheral edge, a top and a bottom. The metal framework defines a plurality of openings. Each opening is bordered by an inwardly projecting peripheral top flange and an inwardly projecting peripheral bottom flange. Blocks are positioned in each of the openings confined by the peripheral top flange and peripheral bottom flange. It is preferred that the blocks be made of recycle vehicular tires.
Patent CA-2241695-A1 (CA)
Title: Insulating compositions
Inventor: BOUDREAU BRIAN
IPC: C08L75/04
Filed: 1998-06-24
Abstract: An insulating composition and method is disclosed. The insulating composition comprises an admixture of heat expanded polystyrene (EPS) beads in a liquid, solvent-free binder, comprising an aromatic isocyanate cured with a polyol resin. The ratio of EPS to binder is about 50:1 by volume. The composition is applied to a surface coat of the binder and finished with a top coat of the binder. A reinforcing fabric layer is optimal.
Patent CA-2242137-A1 (CA)
Title: Compositions hybrides pigmentaires anticorrosion et procedes correspondants
Inventor: SINKO JOHN
IPC: C09D5/08
Filed: 1997-01-03
Abstract: La présente invention concerne une composition anticorrosion à appliquer sur un substrat en métal, tel que l'acier, l'argent, le cuivre ou l'aluminium. Cette composition comporte une composition organique de revêtement filmogène et une phase pigmentaire constituée d'une matière hybride unitaire stable à base de constituants organiques et non organiques en phase solide interfacés au niveau cristallite, inséparables selon les procédés de séparation physique et faisant preuve d'un comportement monophase. La phase non organique comporte un cation appartenant au groupe des Zn, Al, Mg, Ca, Sr, Ti, Zr, Ce et Fe et un anion choisi à partir de phosphates, polyphosphates, phosphites, molybdates, silicates et cyanamides. La phase organique comprend des sels de zinc ou d'alkyl-ammonium (tels que le cyclohexyl-ammonium, le di-cyclohexyl-ammonium, l'octyl-ammonium) de composés organiques mercapto- et thio- ou leurs dérivés à substitution alkyle tels que les mercaptobenzothiazole, mercaptothiazoline, mercaptobenzimidazole, mercaptoimidazole, 2,2-dimercapto-1,3,4-thiodiazole, 5,5-dithio-bis(1,3,4-thiadiazole-2(3H)-thione, mercaptobenzoxazole, mercaptothiazole, mercaptotriazole, mercaptopyrimidine, mercaptopyridine, mercaptoquinoline, alkyl- et cycloalkyl-mercaptanes, N-alkyl- ou N-cycloalkyl-dithiocarbamates, O-alkyl- ou O-cycloalkyl-dithiocarbonates, O,O-dialkyl- et O,O-dicycloalkyl-dithiophosphates.
Patent CA-2248383-A1 (CA)
Inventor: YAMAMOTO MASAHIRO
IPC: H01M10/05
Filed: 1998-09-25
Abstract: A method of producing an electrode plate used for a lithium secondary battery and a lithium secondary battery containing such an electrode plate. The electrode plate is produced by coating a coating slurry of an active material mixture agent added with oxalic acid on a collector, drying and pressing, so as to obtain an electrode plate improved in charge-discharge cycle characteristics when used in a lithium secondary battery.
Patent CA-2250051-A1 (CA)
Title: Procedure to extract natural products
Inventor: MARTINEZ FUENTES JUAN GABRIEL
IPC: A61K35/12
Filed: 1997-01-28
Abstract: Process for extracting natural products through a high-pressure process using liquid solvants in the presence of supercritical fluids in a proportion lower than 50 %, at a pressure comprised between 50 and 500 bar, at a temperature lower than 80 ~C during a time comprised between 0.25 and 20 hours.
Patent CA-2250166-A1 (CA)
Inventor: O'HERRIN SEAN
IPC: C12P21/08
Filed: 1997-03-28
Abstract: La spécificité des réactions immunes est en partie commandée par l'interaction sélective de récepteurs de lymphocytes T avec leurs ligands parents, des molécules de peptides et de MHC. La nature sélective de cette interaction fait de ces molécules, sous forme soluble, des candidates appropriées à la régulation sélective de réactions immunitaires. Les tentatives d'exploitation d'analogues solubles de ces protéines ont été empêchées par l'avidité intrinsèque faible de ces molécules pour leurs ligands. Afin d'augmenter l'avidité d'analogues solubles pour leurs parents à des niveaux acceptables sur le plan biologique, on a créé des complexes divalents de peptides et de MHC ou des récepteurs de lymphocytes T (superdimères). Au moyen d'une stratégie de recombinaison d'ADN, l'ADN codant soit le peptide/MHC de classe II, soit les hétérodimères de TCR, a été lié à l'ADN codant pour des chaînes lourdes et légères d'Ig de murine. Ces produits de recombinaison ont été ensuite exprimés dans un système d'expression de baculovirus. Des techniques de titrage avec immuno-adsorbant lié à une enzyme (ELISA) spécifique des déterminants polymorphes et de Ig de soit la fraction de TCR, soit de MHC de la molécule ont indiqué que les cellules d'insecte infectées ont sécrété environ 1µg/ml de superdimères solubles chimères de conformation intacte. L'analyse de gel SDS PAGE de protéines purifiées a montré cette espèce présentant un poids moléculaire attendu. Les résultats obtenus par cytométrie de flux ont démontré que le TCR et les chimères de classe II présentaient une liaison spécifique de haute avidité à des cellules portant leurs récepteurs parents. Ces superdimères seront utiles pour étudier les interactions TCR/MHC, pour rechercher les lymphocytes, pour identifier de nouveaux antigènes et présentent des utilisations éventuelles en tant que régulateurs spécifiques de réactions immunes.
Patent CA-2250569-A1 (CA)
Title: Novel phenanthridines substituted in the 6 position
Inventor: GUTTERER BEATE
IPC: C07D491/04
Filed: 1997-03-24
Abstract: Compounds of the formula I (see formula I) in which R1, R2, R3, R31, R4, R5, R51 and R6 have the meanings indicated in the description, are novel efficacious bronchial therapeutics.
Patent CA-2251117-A1 (CA)
Title: Host-derived signals for inducing isoprenoid gene expression and uses thereof
Inventor: LUSSO MARCOS
IPC: A61K36/81
Filed: 1997-04-11
Abstract: Disclosed is a method for preparing a composition that is capable of activating the expression of a gene involved in the synthesis of an isoprenoid, the method involving: (a) contacting a plant cell with an elicitor under conditions that allow an elicitor-induced release of a compound that activates the synthesis of an isoprenoid; and (b) recovering a composition including the compound, wherein the compound is diffusible and has a molecular weight less than or equal to 10,000 daltons. Also disclosed is a substantially pure elicitor-induced composition, the composition being capable of activating a gene involved in the synthesis of a plant isoprenoid.
Patent CA-2252166-A1 (CA)
Title: Process for the manufacture of methyl glucoside having low color and low sugar content
Inventor: JOHNSON DONALD L
IPC: C12S99/00
Filed: 1998-10-28
Abstract: A process for decolorizing an aqueous solution of methyl glucoside,  the solution containing at  least one color  component  and  at  least  one  sugar  component, is disclosed.   The process comprises the seeps of providing the aqueous solution of MeG; adding to said solution an amount of yeast or other sugar-converting microorganism sufficient to reduce the level of said sugar component; preferably further adding to the solution an amount of activated carbon sufficient to assist the color component in the solution; and recovering the solution to yield a decolorized, low-sugar solution of MeG.  Also disclosed is a process comprising the steps of providing a solution containing MeG and dextrose; and adding to the solution an amount of a sugar-converting microorganism sufficient to reduce  the  level  of  the  dextrose  in  the  solution. Decolorized  MeG solutions  prepared  by  the  foregoing processes also are disclosed.
Patent CA-2252661-A1 (CA)
Title: Storage stable dentifrice composition containing casein glycomacropeptide
Inventor: ZHANG YUN PO
IPC: A61K38/16
Filed: 1997-04-14
Abstract: Stable oral compositions containing an antibacterial casein glycomacropeptide, an anionic surfactant, and a hydrolyzed protein stabilizer, which stabilizes the casein glycomacropeptide in the presence of the anionic surfactant against inactivation without substantially reducing its antibacterial properties.
Patent CA-2254409-A1 (CA)
Title: High spf perspiration-resistant sunscreen
Inventor: WIGGINS JONATHAN MARK
IPC: A61K8/00
Filed: 1998-11-24
Abstract: Sunscreen emulsion formulations of the oil-in-water type containing an aqueous phase, an emulsifier, and an oil phase comprising at least one ultraviolet-absorbing organic compound and hydrophobically treated silica particles, wherein the concentration of said organic compounds is at least about 30 times the concentration of the silica.
Patent CA-2256315-A1 (CA)
Title: Retroreflective articles having microcubes, and tools and methods for forming microcubes
Inventor: MONTALBANO ANTHONY J
IPC: B29C39/00
Filed: 1997-05-22
Abstract: The present invention provides retroreflective articles having microcubes and tools and methods for forming microcubes. One of the retroreflective articles comprises an array of microcubes; at least one microcube in the array is rectangular (110).
Patent CA-2257921-A1 (CA)
Title: Resistive element and calibrated air tube for spirometer
Inventor: BURKE JOHN W JR
IPC: A61B5/087
Filed: 1997-06-09
Abstract: The present air tube, preferably calibrated air tube, includes resistive element (22) which is located in the hollow space of the tubular portion (12).  This resistive element (22) is adapted for providing a linear resistance versus pressure response, and is sized and adapted to cause a pressure difference or differential as air flows in the hollow space across this element. The preferred calibrated air tube has a pressure response, is useful in a spirometer, and includes a tubular member. Calibration information is associated with the air tube to a model pressure response of a model air tube having substantially the same dimensions and configurations as the air tube.
Patent CA-2260674-A1 (CA)
Inventor: HORLICK MARY
IPC: A61B5/053
Filed: 1998-05-13
Abstract: L'invention concerne un procédé permettant d'estimer la masse non adipeuse (FFM) et l'eau corporelle totale (TBW) d'un enfant prépubère infecté par le virus de l'immunodéficience humaine (HIV). Ledit procédé comprend les étapes suivantes: mesurer l'enfant, mesurer sa résistance corporelle totale, et estimer la masse non adipeuse (FFM) et le poids corporel total (TWB) de l'enfant sur la base de la taille et de la résistance corporelle totale mesurées.
Patent CA-2263248-A1 (CA)
Inventor: LAMMERANT HENRI
IPC: G11B23/03
Filed: 1997-12-05
Abstract: The invention relates to a packaging for receiving a disc-shaped information carrier, especially a compact disc, which comprises a flat disc holder 1 having a thickness of 2 to 4 mm, a cover 2 enclosing the disc holder 1 as well as a closure 3, whereby the cover 2 is preferably made of paper or cardboard and the disc holder 1 as well as the closure 3 are manufactured of conventional transparent or tinted plastic by injection molding as a unitary part, i.e., up to the point of first opening of the packaging they are components of one and the same injection molded plastic part. In order to fulfill the requirements with respect to a flat and light-weight, but bending-resistant and inexpensive packaging, the closure 3 is fixedly connected to the free edge of the cover 2. In this manner, in addition to a simple and inexpensive manufacture, it is also ensured that a manufacture-inherent protection against outer influences is ensured.
Patent CA-2263344-A1 (CA)
Inventor: BAUCKE DORIT
IPC: A61K38/05
Filed: 1997-07-29
Abstract: L'invention concerne des composés de formule (I), dans laquelle les radicaux R, R1, R2, R3, R4, R5 et R6 ainsi que l, m et n ont la signification mentionnée dans la description, ainsi que la préparation desdits composés. Ces nouveaux composés s'utilisent pour lutter contre des maladies. L'invention concerne en outre des composés de formule (II), dans laquelle les radicaux R, R1, R2, R3, R4, R5 et R6 ainsi que l, m et n ont la signification mentionnée dans la revendication 1, et des composés de formule (III), dans laquelle l et R ont la signification mentionnée dans la revendication 1, et Y représente un groupe protecteur N-terminal, un aminoacide protégé ou non à l'extrémité N-terminale, ou représente H.
Patent CA-2264731-A1 (CA)
Inventor: GUEST MARTIN J
IPC: D01F6/44
Filed: 1997-09-04
Abstract: Blends of polymeric materials comprising a plurality of interpolymers each having (1) from 0.5 to 65 mole percent of either (a) at least one vinylidene aromatic monomer or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinylidene aromatic monomer and at least one hindered aliphatic vinylidene monomer, and (2) from 35 to 99 mole percent of at least one aliphatic alpha olefin having from 2 to 20 carbon atoms; and wherein interpolymer components differ in that (i) the amount of vinylidene aromatic monomer residue and/or hindered aliphatic or cycloaliphatic vinylidene monomer residue in any interpolymer component differs from another by at least 0.5 mole percent; and/or (ii) there is a difference of at least 20 percent between the number average molecular weight (Mn) of interpolymer components. These blends of interpolymer components give enhanced properties or processability when compared to the individual polymers comprising the blend.
Patent CA-2266610-A1 (CA)
Inventor: BOULANGER CHRISTOPHE
IPC: H04B1/707
Filed: 1999-03-22
Abstract: Récepteur AMRC à suppression parallèle d'interférences et à pondération. Les coefficients de pondération des sorties des différents étages du récepteur sont choisis pour minimiser une erreur quadratique pondérée par la distribution des valeurs propres de la matrice d'intercorrélation. Application en télécommunications.
Patent CA-2266987-A1 (CA)
Title: Method and system for feeding comminuted fibrous material
Inventor: FUNK ERWIN D
IPC: D21C/
Filed: 1999-03-26
Abstract: A system and method for feeding comminuted cellulosic fibrous material such as wood chips to the top of a treatment vessel such as a continuous digester provide enhanced simplicity, operability, and maintainability by eliminating the high pressure transfer device conventionally used in the prior art. Instead of a high pressure transfer device the steamed and slurried chips are pressurized using one or more slurry pumps located at least thirty feet below the top of the treatment vessel and for pressurizing the slurry to a pressure of at least about 10 bar gauge. A return line from the top of the digester may, but need not necessarily, be operatively connected to the one or more pumps and if connected to the pumps the pressure in the return line may be reduced utilizing a pressure reduction valve and/or a flash tank. During pressurized transferring of the slurry from the pumps to a treatment vessel (which may be as little about 10 feet or as much as about a half a mile away) treatment liquid is provided which contains at least some active pumping chemical including sodium hydroxide, sodium sulfide; polysulfide, anthraquinone or their equivalents or derivatives; surfactants, enzymes, or chelants; or combinations thereof. Pseudo-countercurrent circulation of treatment liquids may be provided between stations.
Patent CA-2267842-A1 (CA)
Inventor: VILATO PABLO
IPC: C03C10/12
Filed: 1998-07-29
Abstract: The invention concerns a glass-ceramic plate based on silicon, aluminium, lithium oxide, designed in particular for covering heating elements. The invention is characterised in that said plate is at least 50 % blurred. The invention also concerns a method for making such a plate.
Patent CA-2271370-A1 (CA)
Inventor: LUNDY DANIEL E
IPC: G03F7/027
Filed: 1999-05-10
Abstract: The invention provides a negative-acting photoimageable composition comprising A) between about 30 and about 80 wt% based on total weight of A) plus B) of a binder polymer having acid functionality sufficient to render said photoimageable composition developable in alkaline aqueous solution, B) between about 20 and about 70 wt% based on total weight of A) plus B) of an addition-polymerizeable, non-gaseous .alpha.,.beta.-ethylenically unsaturated compound(s) capable of forming a high polymer by free-radical initiated chain-propagating addition polymerization, at least about 50 mole percent of the .alpha.,.beta.-ethylenically unsaturated moieties of B) being methacrylic moieties, and C) between about 0.1 and about 20 wt% based on total weigh of A) plus B) of a photoinitiator chemical system.  Photopolymerizable component B comprises, at between about 1 and about 70 wt.% relative to total of A) plus B) a biuret urethane oligomer having .alpha.,.beta.-ethylenic unsaturation.
Patent CA-2272389-A1 (CA)
Inventor: AGBORAW EBINOTAMBONG
IPC: H01Q5/00
Filed: 1997-11-24
Abstract: A dielectric-loaded loop antenna for operation at frequencies above 200 MHz has an elongate cylindrical core with a relative dielectric constant greater than 5, a pair of co-extensive helical antenna elements, a coaxial feeder structure extending through the core from a proximal end to a distal end where it is coupled to the antenna elements, and a balum formed on the core cylindrical surface and connected to the feeder structure at the proximal end of the core. Each helical antenna element is bifurcated at an intermediate position so that proximally, it is formed of two generally parallel branches each of which is coupled to a respective linking path around the core to meet a corresponding branch of the other elongate element therefore forming a conductive loop between the two conductors of the feeder structure. The two conductive loops have different electrical lengths as a result of, for example, the branches being of differents lengths. In a preferred embodiment, the linking paths around the core are formed by the rim of a split conductive sleeve constituting the balum. The sleeve is formed in two parts separated by a pair of longitudinally extending diametrically opposed quarter wave slits each of which extends from the space between the branches of a respective helical antenna element to a short circuited end adjacent the proximal end of the core.
Patent CA-2274015-A1 (CA)
Inventor: GOFFLO PIERRE
IPC: G01R31/02
Filed: 1997-11-28
Abstract: The invention concerns a pipe designed for receiving on its internal wall (14) a sheathed electric or optical cable (4) and protecting it at its internal (14) and external (13) walls electrically connected for making it an element for controlling the integrity of the cable (4) sheath (6); preferably it is made of a conductive material.
Patent CA-2277278-A1 (CA)
Inventor: TILKINS MARY LYNN
IPC: C12N15/09
Filed: 1998-01-09
Abstract: The present invention provides a serum-free supplement which supports the growth of embryonic stem cells in culture. Also provided are a medium comprising a basal medium supplemented with the serum-free supplement of the present invention. The present invention also provides methods for culturing and isolating embryonic stem cells, methods for producing a transgenic animal, and methods for expressing recombinant protein in embryonic stem cells and transgenic animals.
Patent CA-2281825-A1 (CA)
Inventor: SATO TAICHI
IPC: F16L27/00
Filed: 1999-09-09
Abstract: An expansion tube joint of the present invention comprises a first cylindrical body, a second cylindrical body inserted along an axis of the first cylindrical body, a seal member mounted between the first and second cylindrical bodies closer to an insertion port of the first cylindrical body, a lock mechanism provided at a position deeper than the seal member for restricting a relative movement range along the axis of the first and second cylindrical bodies, and a coming-out preventing member for preventing the seal member from coming out from the insertion port of the first cylindrical body, wherein after a member constituting the lock mechanism is mounted, the seal member can be mounted.