baber/WOPTO huggingface dataset:
Patent CA-2235011-A1 (CA)
Inventor: LIVSEY JAMES D
IPC: D21D5/24
Filed: 1998-04-16
Abstract: An apparatus for separating relatively light fractions from relatively dense fractions in a pulp suspension.  The apparatus has a tubular housing of circular cross section defining a separation chamber extending longitudinally from an inlet end to an outlet end, with an inlet at the inlet end for tangentially introducing a flow of the pulp suspension into the housing for vortical flow along the length of the separation chamber towards the outlet.  The vortical flow effects a separation of the relatively light fraction from the relatively dense fraction.  The housing has at least two outlets at the outlet end, one outlet being positioned to accommodate an exiting flow of the relatively light fraction and the other outlet being positioned to accommodate an exiting flow of the relatively dense fraction. The diameter of the separation chamber at an intermediate region along its length is enlarged in comparison to its diameter at the inlet and outlet ends.
Patent CA-2235565-A1 (CA)
Inventor: NA EUN-SUN
IPC: A61P39/02
Filed: 1998-04-22
Abstract: An anti-cancer composition comprising an effective amount of a Rhus verniciflua extract and a pharmaceutically acceptable  carrier,  the Rhus verniciflua extract being prepared by a process  comprising extracting  from Rhus verniciflua a crude extract with acetone or ethanol, and subjecting  the  crude  extract  to  silica gel  adsorption chromatography  employing  a  mixture  of  chloroform  and methanol.
Patent CA-2236430-A1 (CA)
Inventor: STRUILLOU AMAUD PIERRE
IPC: C07C229/12
Filed: 1996-10-22
Abstract: The present invention relates to beta-amino ester compounds of active alcohols of formula (I), wherein each R'1, R'2, R1, R2, independently, is selected from hydrogen, alkyl group and aryl group, wherein each R1, R2, independently, is selected from hydrogen, alkyl group and aryl group; and of formulae (II) and (III), wherein each n, n1, independently, is an integer lying in the range from 1 to 20, and wherein n2 is an integer lying in the range of 1 to 6, wherein each n3, independently, is an integer lying in the range from 1 to 3, and wherein each R, independently, is an organic chain of an active alcohol, preferably a perfume alcohol. The present compound is preferably used as a precursor of the corresponding betaine ester compound. The present invention also relates to said beta-amino ester compounds of active alcohols in alkaline environment which upon and after use will allow a slow release of the active component.
Patent CA-2238610-A1 (CA)
Inventor: CHEN JIE
IPC: A61K38/08
Filed: 1996-11-22
Abstract: L'invention concerne des peptides antimicrobiens voisins des protégrines naturelles, et des méthodes d'utilisation de ces peptides dans divers contextes, y compris le traitement ou la prévention d'infections.
Patent CA-2239585-A1 (CA)
Title: Well drilling and servicing fluids and methods of increasing the low shear rate viscosity thereof
Inventor: DOBSON JAMES W JR
IPC: C09K8/08
Filed: 1998-06-03
Abstract: A well drilling and servicing fluid comprising a brine having dissolved therein a formate salt selected from the group consisting of potassium formate, cesium formate, and mixtures thereof, a biopolymer viscosifier, and a pre-gelatinized amylopectin derivative, and optionally a bridging agent and magnesium oxide. The amylopectin starch derivative is a crosslinked amylopectin starch (waxy) which has been crosslinked to the extent that the viscosity of an aqueous amylopectin starch suspension undergoing crosslinking is within about 25% to about 60%, preferably from about 25% to less than about 50%, of the maximum viscosity which can be obtained, and gelatinized. A process of increasing the low shear rate viscosity at ambient temperatures of the aqueous formate brine which comprises adding to the brine a biopolymer and the pre- gelatinized crosslinked amylopectin starch in amounts such that they interact to synergistically increase the low shear rate viscosity of the brine.
Patent CA-2241929-A1 (CA)
Title: Gyroscope a vibrations
Inventor: TOMIKAWA YOSHIRO
IPC: G01C19/5656
Filed: 1997-10-24
Abstract: Une unité piézoélectrique (80) est composée d'éléments piézoélectriques (60) et (70). Une électrode d'excitation (22) est placée sur la totalité de la surface inférieure de l'élément piézoélectrique (60). Une électrode d'excitation (21) est placée sur la totalité de la surface comprise entre les éléments piézoélectriques (60) et (70). Les électrodes d'excitation (21) et (22) sont connectées à une source de signaux d'excitation (90). Des électrodes de détection (31-34) sont placées sur la surface supérieure (71) de l'élément piézoélectrique (70). Les électrodes de détection (31) et (34) sont connectées à l'une des bornes de sortie (50) et les électrodes de détection (32) et (33) sont connectées à l'autre borne de sortie (50). L'élément piézoélectrique (70) est polarisé vers le haut et l'élément piézoélectrique (60) est polarisé vers le bas. Une vibration verticale de premier ordre est transmise dans une direction longitudinale L et une vibration de déformation de deuxième ordre est détectée par les électrodes de détection (31-34). Une tension proportionnelle à une force de Coriolis (vitesse angulaire de rotation) est produite. Cette conception permet d'obtenir un gyroscope à vibrations ne nécessitant pas de collage et donc facilitant une réduction des coûts, et dont l'épaisseur et la largeur peuvent être réduites.
Patent CA-2247064-A1 (CA)
Title: Vegetable oil-based offset printing inks
Inventor: ERHAN SEVIM Z
IPC: C09D11/10
Filed: 1997-03-27
Abstract: Sheet-fed and heat-set web offset ink vehicles, which do not require any volatile organic compounds, are prepared by blending: (I) as the major component, a petroleum resin, an alkyd resin or a heat bodied oil;  (II) a non-bodied vegetable oil; and (III) one or more fatty acid esters. Inks prepared from these vehicles are quick drying and meet or exceed industry standards in regard to ruboff resistance, viscosity, and tackiness.
Patent CA-2247982-A1 (CA)
Title: Multiaxially oriented fluoropolymer films and methods of manufacture therefor
Inventor: SHANNON DONALD
IPC: B29C55/10
Filed: 1997-03-03
Abstract: Porous fluoropolymer films, such as PTFE films, formed by a method comprising the steps of (a) forming a fluoropolymer (e.g., PTFE) paste (10), (b) extruding, calendaring, or otherwise processing the paste to form a film extrudate (12), (c) causing the film extrudate to be calendared in a first directional axis (14), (d) subsequently calendaring the film extrudate in a second directional axis which is different form the first directional axis (16), (e) subsequently calendaring the film extrudate in at least one additional direction axis which is different from said first and second directional axes, thereby forming a multiaxially calendared film extrudate (18), (f) drying the multiaxially calendared film extrudate (20), and (g) radially expanding the multiaxially calendared film extrudate (22) to form a radially oriented fluoropolymer (e.g., PTFE) film. The porous fluoropolymer films formed by this method are multiaxially oriented and exhibit isotropic strength properties.
Patent CA-2250008-A1 (CA)
Title: Neovascularization inhibitor containing tissue factor pathway inhibitor
Inventor: NAKAHARA YO
IPC: A61P35/00
Filed: 1997-03-24
Abstract: An inhibitor for neovascularization caused by the proliferation of vascular endothelial cells characterized by containing a tissue factor pathway inhibitor (TFPI) as the active ingredient. The TFPI-containing inhibitor can effectively inhibit the neovascularization, so that it is useful as a preventive or remedy for pathological conditions accompanying neovascularization, such as malignant tumor.
Patent CA-2253163-A1 (CA)
Inventor: JIN YOUCHUN
IPC: G09G5/06
Filed: 1998-11-02
Abstract: An image processing system and method for generating a palette for paletted images. The invention assigns an area of the colour space with a higher importance using weights and colour space distance so that more entries in the palette will represent these more important colours. Therefore, the colour representation of the paletted image will more closely resemble the original absolute colour image in the area of interest. Further, an embodiment of the invention includes control to customize the final image. The invention is useful when the interesting area or colour is small compared to the other areas of the picture or the get better colour representation in a close area for the picture.
Patent CA-2253194-A1 (CA)
Title: Flameproof fabrics based on melamine resin fibres
Inventor: BERBNER HEINZ
IPC: A41D31/00
Filed: 1997-04-30
Abstract: The present invention relates to flameproof fabrics based on melamine resin fibres, fireproof blankets and clothing made therewith and their use for extinguishing fires and protecting people and objects from fire, combustion products and/or extinguishing agents.
Patent CA-2254576-A1 (CA)
Title: Tronconneuse de rail
Inventor: HUBOUD-PERON MAURICE
IPC: E01B31/04
Filed: 1998-11-26
Abstract: L'invention concerne une tronçonneuse de rails (2) à bloc moteur (16) entraînant une meule rotative (25) et à support (15) guidant la meule dans son plan transversalement au rail (2) en étant articulé sur un étau (7) à fixer au rail (2), la meule (25) étant montée à une extrémité d'un bras (27) relié par son autre extrémité au bloc moteur (16). Ledit bras porte-meule (27) est articulé par son autre extrémité au bloc moteur (16) autour d'un axe (24) parallèle à l'axe (12) d'articulation sur l'étau (7) et à l'axe longitudinal du rail, le bloc moteur (16) étant relié en permanence à l'étau (7) de façon non-retournable horizontalement et non renversable verticalement en étant ainsi toujours d'un même côté du plan de la meule (25) par rapport à l'étau (7) L'invention s'applique aux voies ferrées.
Patent CA-2255527-A1 (CA)
Title: Adapter fitting
Inventor: WOODS TERRANCE J
IPC: F16L15/00
Filed: 1998-12-07
Abstract: A combination of a lockring fitting and a ball valve wherein the improvement comprises a lockring fitting having at least one male nipple provided with external threads and a ball valve including a housing provided with at least one threaded port for receiving such external threads of such at least one male nipple of the lockring fitting.
Patent CA-2256431-A1 (CA)
Title: Production of paper
Inventor: BLUM RAINER
IPC: D21H17/54
Filed: 1997-12-09
Abstract: Paper is produced by draining a paper stock containing process chemicals on a paper machine, a main stream of the paper stock and a dilution stream which consists of white water, contains at least 5 % by weight of the process chemicals and amounts to 5 -35 % by volume of the total head box feed being fed via a head box to the paper machine wire. The papers thus produced have an excellent formation profile and an outstanding ash distribution.
Patent CA-2257850-A1 (CA)
Inventor: ZECCHINO JULIUS
IPC: A61K8/29
Filed: 1997-06-09
Abstract: L'invention concerne des compositions cosmétiques ou pharmaceutiques contenant des microcapsules renfermant de l'hinokitiol dans une quantité suffisamment efficace pour assurer leur conservation et qui contiennent une matrice à base de collagène et de glycosaminoglycane.
Patent CA-2260546-A1 (CA)
Inventor: CHUNG CHAN YOUNG
IPC: A47J31/053
Filed: 1999-01-28
Abstract: A double boiler for domestic use includes a heating vessel for receiving water and a filtering device containing food, the vessel having a lid on the top; a main case having a reception hollow and a heater at one side so that the heating vessel is mounted and heated; a steam condenser incorporated in the top end of the main case so that steam produced from the heating vessel is collected; steam cooling means for circulating cooling water along the inner and outer circumferential surfaces of the steam condenser so that the steam collected in the steam condenser becomes cooled; and condensed water collecting means for receiving the heating vessel to the hollow of the main case and at the same time connecting the heating vessel and steam condenser so that the condensed water condensed in the steam condenser is gathered into the heating vessel.
Patent CA-2262360-A1 (CA)
Title: Synchronization preamble method for ofdm waveforms in a communications system
Inventor: RYAN DAVID JAMES
IPC: H04B7/26
Filed: 1999-02-23
Abstract: A highly bandwidth-efficient communications method is disclosed that enables remote stations to synchronize in time and frequency to their serving base station. The invention enables a base station and its remote stations in a cell to synchronize in a noisy environment where signals interfere from other base stations and remote stations in other cells. The base station forms a forward synchronization burst that includes a plurality of tone frequencies arranged in a distinctive orthogonal frequency division multiplexed pattern unique to the base station. The unique pattern enables a remote station to distinguish the base station's bursts from other signals present in a crowded area. The distinctive orthogonal frequency division multiplexed pattern can be a Hadamard code pattern, for example. When the a base station has received a signal on a reverse link from a remote station, having significant interference, the base station selectively forms a request signal requesting the remote station to respond with a reverse synchronization burst that includes a plurality of tone frequencies arranged in the same distinctive orthogonal frequency division multiplexed pattern. The base station then transmits the forward synchronization burst and the request signal at a base station reference instant of time to the remote station. The reverse synchronization signals selectively occupy time slots in the transmission frame from the remote station to the base station, that would otherwise be occupied by channel control or traffic signals. Only when the base station requests the remote station to respond with a reverse synchronization burst, does this burst preempt the time slot from its other uses.
Patent CA-2262540-A1 (CA)
Inventor: PUSKAS WILLIAM L
IPC: G10K11/00
Filed: 1997-08-01
Abstract: Clamped ultrasonic transducers are driven at harmonic resonant frequencies in a range of 100 kHz - 350 kHz to impart microsonic frequencies to process liquid. The application of microsonic frequencies to liquid preferably occurs simultaneously with a sweeping of the microsonic frequency within the transducer's (122) harmonic bandwidth to reduce or eliminate (a) standing waves within the liquid, (b) other resonances, (c) high energy cavitation implosion, and (d) non-uniform sound fields, each of which is undesirable for cleaning and/or processing of semiconductor wafers and other delicate parts. The invention can also drive ultrasonic transducers (122) such that the frequency of applied energy has a sweep rate within the ultrasonic bandwidth of the transducers; and that sweep rate is also varied so that the sweep rate is substantially non-constant during operation. An ultrasound generator of the invention sometimes utilizes amplitude modulation (AM), and the AM frequency is swept over time so as to reduce resonances. Two or more transducers are sometimes used by the invention, in combination, to broaden the overall bandwidth of acoustical energy applied to the liquid around the primary frequency or one of the harmonics. The bandwidths of the transducers are made to overlap such that an attached generator can drive the transducers, in combination, to deliver ultrasound to the liquid in a broader bandwidth.
Patent CA-2265504-A1 (CA)
Title: Azinyloxy, and phenoxy-diaryl-carboxylic acid derivatives, their preparation and use as mixed eta/etb endothelin receptor antagonists
Inventor: JANSEN ROLF
IPC: C07D239/52
Filed: 1997-09-02
Abstract: Carboxylic acid derivatives have the formula (I), in which R1 stands for tetrazole or a group (a); R2 stands for hydrogen, hydroxy, NH2, NH(C1-c4-alkyl), N(C1-C4-alkyl)2, halogen, C1-C4-alkyl, C2-C4-alkenyl, C2-C4-alkinyl, C1-C4-halogenalkyl, C1-C4-alkoxy, C1-C4-halogenalkoxy or C1-C4-alkylthio, or CR2 is linked with CR10, as indicated below, into a 5- or 6-membered ring; X  stands for nitrogen or methine; Y stands for nitrogen or methine; Z stands for nitrogen or CR10, wherein R10 is hydrogen or C1-C4-alkyl or CR10 forms together with CR2 or CR3 an optionally substituted 5- or 6-membered alkylene or alkenylene ring, and wherein one or more methylene groups can be substituted by oxygen, sulphur, -NH or -N(C1-C4-alkyl); R3 stands for hydrogen, hydroxy, NH2, NH(C1-C4-alkyl), N(C1-C4-alkyl)2, halogen, C1-C4-alkyl, C2-C4-alkenyl, C2-C4-alkinyl, C1-C4-hydroxyalkyl, C1-C4-halogenalkyl, C1-C4-alkoxy, C1-C4-halogenalkoxy, C1-C4-alkylthio; or CR3 is linked to CR10 as indicated above into a 5- or 6-membered ring, R4 and R5 (which may be identical or different) stand for optionally substituted phenyl or naphthyl, or for phenyl or naphthyl which are linked to each other at the ortho-position by a direct bond, a methylene, ethylene or ethenylene group, an oxygen or sulphur atom or an SO2, NH or N-alkyl group; optionally substituted C3-C8-cycloalkyl; R6 stands for optionally substituted C3-C8-cycloalkyl; optionally substituted phenyl or naphthyl, a 5- or 6-membered, optionally substituted heteroaromatic compound containing one to three nitrogen atoms and/or one sulphur or oxygen atom; W stands for sulphur or oxygen; Q is a spacer with a length that corresponds to a C2-C4 chain. Also disclosed are the physiologically tolerable salts of these compounds, as well as their pure enantiomer and diastereoisomer forms, their preparation and use as mixed ETA/ETB-receptor antagonists.
Patent CA-2266039-A1 (CA)
Inventor: CAUFIELD CRAIG EUGENE
IPC: A61P11/06
Filed: 1997-09-03
Abstract: La présente invention concerne des composés présentant une activité immunodépressive et/ou anti-tumorale et/ou anti-inflammatoire in vivo et inhibant la prolifération de thymocytes in vitro. Ces composés sont donc utiles dans le traitement du rejet d'une transplantation, des affections auto-immunes telles que le lupus érythémateux, la polyarthrite rhumatoïde, le diabète sucré, la sclérose en plaques, et dans le traitement des infections dues au Candida albicans, ainsi que dans le traitement de maladies inflammatoires. Ces composés sont représentés par la formule (I), dans laquelle W et Y désignent OR?1¿ et X et Z forment une liaison ou W et X désignent OR?2¿ et Y et Z forment une liaison, formule dans laquelle: R?1¿ est sélectionné parmi -(CH¿2?)¿n?-Ar où Ar ne désigne pas un phényle, -(CH¿2?CH¿2?O)¿n?CH¿3? où n ne désigne pas 1, -CH¿2?CH¿2?CH¿2?O(CH¿2?CH¿2?O)¿m?-CH¿3?, -(CH¿2?)¿n?-CH¿2?CH(OR?3¿)CH¿2?OR?4¿ où R?3¿ et R?4¿ désignent H, alkyle C¿1?-C¿10?, ou R?3¿ et R?4¿ désignent ensemble un éthylène, un méthylène ou un diméthyméthylène; -CH¿2?(CH¿2?)¿n?-OR?3¿ où R?3¿ ne désigne pas H, alkyle C¿1?-C¿10?, ou C(O)alkyleC¿1?-C¿10?; et -CH¿2?(CH¿2?)¿n?-X où X désigne F, Cl, Br ou I; R?2¿ est sélectionné parmi H, alkyle C¿1?-C¿10?, Ar(CH¿2?)¿n?-, alcényle C¿3?-C¿10?, -(CH¿2?CH¿2?O)¿n?CH¿3?, -CH¿2?CH¿2?CH¿2?O(CH¿2?CH¿2?O)¿m?-CH¿3?, -CH¿2?(CH¿2?)¿n?-OR?3¿, -CH¿2?(CH¿2?)¿n?-X où X désigne F, Cl, Br ou I; et -(CH¿2?)¿n?-CH¿2?CH(OR?5¿)CH¿2?OR?6¿ où R?5¿ et R?6¿ sont sélectionnés de façon autonome parmi H, alkyle C¿1?-C¿10?, -(CH¿2?)¿n?-Ar, -CONH(CH¿2?)¿n?-Ar ou COC(CH¿3?)¿2?-(CH¿2?)¿n?-Ar, -COR?7¿ et -CO¿2?R?7¿, où R?7¿ désigne alkyle C¿1?-C¿6?, alcényle C¿2?-C¿6?, ou Ar; n = 1-10 de façon autonome m = 1-5 de façon autonome; et Ar est sélectionné de façon autonome parmi phényle, pyridinyle, quinolinyle, indolyle, furanyle; 1,2,3-triazolyle et tetrazolyle, et un sel d'addition d'acide acceptable au niveau pharmaceutique là où on peut en former un.
Patent CA-2266634-A1 (CA)
Title: Zero oxygen permeation plastic bottle for beer and other applications
Inventor: ACKERLEY DONALD F
IPC: B65D1/02
Filed: 1997-09-22
Abstract: Multilayered plastic bottles are disclosed having oxygen scavenging capacity sufficient to maintain substantially zero or near zero (depending on product requirements) presence of oxygen in the bottle cavity for the planned shelf life of the bottled product under specified storage conditions. The bottles feature a layer comprised of oxygen scavenger copolyester and may be used for bottling beer and other products requiring nearly total absence of oxygen for the duration of the target product shelf life.
Patent CA-2267616-A1 (CA)
Inventor: SAXENA GEETA
IPC: G01N33/50
Filed: 1997-10-17
Abstract: Il est possible d'analyser des substances afin de détecter leur activité inhibitrice de la phosphorylation protéique post-traduction en ajoutant ces substances à une culture en cours d'un organisme procaryote tel qu'un streptomycète; en laissant la culture se développer en présence de ladite substance pendant un certain temps; en observant la culture afin de détecter une modification de son développement par rapport au développement de l'organisme procaryote cultivé en l'absence de ladite substance. Une modification du développement indique que la substance possède une activité inhibitrice de la phosphorylation protéique post-traduction. On peut, en particulier, ajouter la substance à analyser à la culture de l'organisme procaryote en cours en plaçant un disque support contenant ladite substance sur une plaque venant juste d'être ensemencée. S'il y a inhibition du développement des mycélia aériens et de la formation des spores, la substance possède une activité inhibitrice de la phosphorylation protéique post-traduction.
Patent CA-2271655-A1 (CA)
Title: Process and device for simultaneously drilling and lining a hole
Inventor: BOEHM KARL
IPC: E21B10/64
Filed: 1997-11-12
Abstract: In a process for drilling, in particular rotary percussion or percussion drilling, and lining holes in the ground or rocks, a hole (13) is percussion and/or rotation drilled by a cutter (1,2,3) mounted on boring rods (9) and a lining is formed by a jacket tube (5). During drilling, at least one jacket tube (5,5') coupled to the cutter (1,2) is drawn in the axial direction by the cutter (1,2,3) into the bore hole (13) and once drilling is finished, the cutter (3) is at least partially removed from the jacket tube (5,5') together with the boring rods (9).      In a device for drilling, in particular percussion or rotary percussion drilling, and lining holes in the ground or rocks, a cutter (1,2,3) mounted on boring rods (9) drills a bore hole by percussion and/or rotary drilling. The cutter (1,2,3) is divided in the radial direction.      At least one jacket tube (5,5') which surrounds the boring rods (9) is located at the end of the cutter (3) away from the drilling surface, around the outer circumference of the cutter (3), and is form-fittingly joined to the cutter (1) by at least one coupling element (6) so as to be drawn in the longitudinal direction of the bore hole (13).
Patent CA-2271966-A1 (CA)
Title: Disc and knife cutter assembly for mowing
Inventor: MEGLI ROY D
IPC: A01D34/73
Filed: 1997-11-14
Abstract: A cutting assembly for a mowing machine has a disk (12) and a knife member assembly. The disk (12) has a surface portion (14) of which at least a peripheral portion is planar. At least three knife members (18), which have a cutting edge (50), a beveled surface portion (48) which extends from the cutting edge (50) and a body surface portion (60) which extends from the beveled surface (48), are mounted to the disk (12) at positions so that the knife members (18) are displaced substantially equidistantly one from another and so that upon rotation of the disk (12) in a plane about a central disk axis, the cutting edge (50) of the knife members (18) extends away from the disk (12), and the body surface (60) is, with respect to the disk planar surface, inclined at an angle.