baber/WOPTO huggingface dataset:
Patent CA-2221613-A1 (CA)
Title: Cyclone
Inventor: HALLDIN CLAES
IPC: B04C5/12
Filed: 1995-05-30
Abstract: A cyclone for treating a gas flow (F) containing dust comprises a cyclone chamber (1) of circular cross section and having a vertical axis, and a central tube (7) of circular cross section, which is coaxially arranged in the upper portion of the cyclone chamber (1). An elongate insert element (10), which is vertically inserted in the central tube (7), is so designed and extends in such a manner downwards in the central tube (7) from the upper end thereof that a circumferential gap (17) exists between the insert element (10) and the central tube (7). This gap (17) has a preferably constant cross-sectional area which does not increase in the direction of the gas flow.
Patent CA-2222457-A1 (CA)
Inventor: HENDERSON DANIEL ROBERT
IPC: C12N15/861
Filed: 1996-06-26
Abstract: L'invention concerne des adénovirus vecteurs spécifiques à des cellules hôtes, pour transfecter des cellules hôtes cibles. La réplication du virus est limitée aux cellules cibles en assurant une régulation de l'initiation de la transcription, basée sur le fait que les facteurs de transcription ne deviennent actifs que dans certains types cellulaires spécifiques et limités. L'adénovirus modifié peut être utilisé comme vecteur pour conférer de nouvelles caractéristiques génétiques, en particulier de nature cytotoxique, permettant de traiter des néoplasies.
Patent CA-2225241-A1 (CA)
Inventor: UCHIDA YOSHINORI
IPC: H04W4/00
Filed: 1997-12-18
Abstract: Système mobile de radiocommunications fondé sur le partage de fréquences et le partage de créneaux temporels pour l'acheminement de signaux AMRT (TDMA) et/ou AMRC (CDMA) avec répartition temporelle, qui permet d'améliorer la qualité générale des transmissions. Le système traite le signal de radiocommunications produit par un certain nombre de méthodes d'accès multiple pour le partage fréquentiel et temporel. Les signaux AMRT, identifiés par des mots codes de synchronisation distincts, se partagent la même fréquence et le même créneau temporel. Les signaux AMRC avec répartition temporelle font l'objet d'un étalement en fréquence fondé sur l'étalement des codes assignés au créneau temporel avec répartition temporelle. Le système comprend des stations qui régénèrent le signal partagé AMRC avec répartition temporelle contenu dans le signal de radiocommunications; après extraction du signal partagé du signal de radiocommunications, le signal AMRT identifié par le mot code de synchronisation est régénéré comme signal désiré.
Patent CA-2226150-A1 (CA)
Inventor: NIEMANN SIMON HANS
IPC: C07D221/08
Filed: 1996-06-26
Abstract: L'invention concerne un procédé pour séparer l'acide 5-formylvalérique linéaire d'un mélange d'acides 5-, 3- et 4-formylvalériques. La séparation se fait par extraction fractionnée avec deux solvants non miscibles dont un est un solvant aqueux et l'autre est un solvant organique, ce dernier ayant une affinité plus grande ou plus faible pour l'acide 5-formylvalérique que pour les acides 3-formylvalériques et pour l'acide 4-formylvalérique. En outre, l'invention concerne un procédé amélioré de préparation du .epsilon.-caprolactame à partir d'un mélange d'acides formylvalériques linéaires et ramifiés, ou à partir de l'acide penténoïque.
Patent CA-2227457-A1 (CA)
Inventor: COSTABILE BRUNO L
IPC: H05F1/00
Filed: 1998-02-06
Abstract: In a product for illiminating static cling particularly in a clothes dryer, in this invention, the patch sticks to the inside an appliance dryer and against the wall of the rotating drum.
Patent CA-2229291-A1 (CA)
Inventor: SRBLJIC SINISA
IPC: G06F12/08
Filed: 1998-02-11
Abstract: A scalable distributed caching system on a network receives a request for a data object from a user. The caching system carries out a locator function that locates a directory cache for the object. The directory cache stores a directory list that identifies the locations of object caches that purport to store copies of the object requested by the user. The object caches on the object directory list are polled, and in response send messages to the cache that received the user request indicating if each object cache stores a copy of the requested object. The receiving cache sends a message requesting a copy of the object to the object cache that sent the message first received by the receiving cache indicating that an object cache stores the requested object. The object cache that sent the first received message then sends a copy of the object to the receiving cache, which stores a copy and then sends a copy to the user. The directory list for the object is then updated by adding the network address of the receiving cache. Outdated copies of objects stored on object caches are deleted in a distributed fashion to maintain the coherence of the cached copies. This is further reinforced by the association of time-to-live parameters with the each copy and each object cache address on directory lists.
Patent CA-2230974-A1 (CA)
Inventor: GRESE TIMOTHY A
IPC: C07F7/18
Filed: 1996-08-26
Abstract: L'invention concerne des composés de formules I et II dans lesquelles X représente -O-, -S-, ou -NR?5¿; Y représente -O-, -S-, CH¿2?-, -CH¿2?CH¿2?-, -CH=CH-, ou -NR?5¿-; B représente -CH?2¿- ou -CO-; R?1¿, R?2¿ et R?3¿ représentent chacun indépendamment -H, -OH, -O(alkyle C¿1?-C¿4?), -OCOC¿6?H¿5?, -OCO(alkyle C¿1?-C¿6?), -OSO¿2?(alkyle C¿4?-C¿6?), -OSO¿2?CF¿3?, Cl, ou F; n vaut 1 ou 2; W représente CH¿2? ou C=O; R?4¿ représente 1-pipéridinyle, 2-oxo-1-pipéridinyle, 1-pyrrolidinyle, méthyl-1-pyrrolodinyle, diméthyl-1-pyrrolidinyle, 2-oxo-1-pyrrolidinyle, 4-morpholino, diméthylamino, diéthylamino, ou 1-hexaméthylèneimino; R?5¿ représente alkyle C¿1?-C¿3?, -COC¿6?H¿5?, -CO(alkyle C¿1?-C¿6?), -C(O)OC¿6?H¿5?, -C(O)O(alkyle C¿1?-C¿6?), -SO¿2?(alkyle C¿1?-C¿6?), -SO¿2?C¿6?H¿5?, ou -SO¿2?CF¿3?; ou un sel pharmaceutiquement acceptable desdits composés. L'invention porte également sur des composés intermédiaires, des procédés de préparation des composés de formules I et II, des procédés et des formulations pharmaceutiques dans lesquels lesdits composés de formules I et II sont utilisés.
Patent CA-2231571-A1 (CA)
Title: Carbonate polymer resins containing low volatility aromatic phosphate ester compounds
Inventor: SCHROCK NANCY J
IPC: C08K5/521
Filed: 1996-10-18
Abstract: Disclosed is a carbonate polymer composition comprising (a) a carbonate polymer having a weight average molecular weight of from 20,000 to 40,000 and (b) from greater than 0.1 to less than 1.0 weight percent (based on carbonate polymer composition weight) low volatility aromatic phosphate ester compound, and optionally (c) from 0.001 to 0.1 weight percent (based on carbonate polymer compositions weight) of an alkali metal salt having a pH of at least 7. Preferably the low volatility aromatic phosphate ester is selected from the group of aromatic phosphate ester oligomer compounds or haloaryl phosphate compounds.  It has been found to be preferable to use a low volatility aromatic phosphate ester which experiences a weight loss of no more than 5 weight percent at 250 °C when heated to a temperature of 500 °C in a thermogravimetric analysis (TGA) at a heating rate of 20 °C per minute, more preferably no more than 40 percent at 300 °C. It has been found that these compositions surprisingly achieve the Underwriters Laboratory (UL-94) V-2 rating without significantly sacrificing the otherwise good combinations of properties of carbonate polymer resins. In extruded sheet applications, it has been found preferable to include the optional basic alkali metal salt to attain the V-2 rating.
Patent CA-2232361-A1 (CA)
Title: Novel poly(monoperoxycarbonates)
Inventor: SANCHEZ JOSE
IPC: C08F4/38
Filed: 1997-08-22
Abstract: Poly(monoperoxycarbonates) of general structure A, (see above formula) where R, R1 and n are defined herein, e.g., 1,1,1-tris(t--butylperoxycarbonyloxymethyl)ethane, intermediates for their preparation as well as processes for their preparation and use are disclosed. These monoperoxycarbonates are useful in initiating the polymerization of ethylenically-unsaturated monomers, particularly styrene, curing of unsaturated polyester resins, and in modifying the molecular weight of polymers, e.g., by cross-linking or controlled chain degradation.
Patent CA-2232598-A1 (CA)
Inventor: MORTENSEN MAX K
IPC: C01B7/04
Filed: 1996-09-20
Abstract: A process of recovering chlorine from a stream of hydrogen chloride that includes supplying a stream HCl and oxygen to a chlorinator reactor (11) to exothermically react with a fluidized bed of carrier catalyst comprising cupric oxide and cupric chloride (15) to convert part of the cupric oxide to cupric chloride and cupric hydroxychloride; passing the carrier catalyst containing cupric chloride, cupric hydroxychloride and residual cupric oxide (40) from (11) to a combination oxidation reactor (16) to exothermically react with a stream of HCl and oxygen (10a) thereby producing cupric oxide which is returned to (11); supplying the overhead stream of chlorine, HCl, inerts and oxygen (70) from (16) to (11) to cause HCl therein to react with the cupric oxide in the carrier catalyst; the product stream (23) from (11) being chlorine rich but substantially free of HCl.
Patent CA-2233424-A1 (CA)
Title: Echo detection, tracking, cancellation and noise fill in real time in a communication system
Inventor: SUI CLIFF
IPC: H04B3/23
Filed: 1998-03-26
Abstract: A method for processing telecommunications signals to alleviate echo during a voice communication between a local talker and a remote talker comprises the application of circular buffers for near and far end signals to preserve processing time. Overlapping blocks of samples are processed and indexed by incrementing the index over time to generate an array for storing magnitude coherence versus time delay between outgoing and incoming samples. Echo is clipped based on power spectral matching. The clipped echo is replaced with noise fill of at least one of two types, white noise and tonal noise, at an appropriate level. Also, crackle which comprises high energy spikes and a residual echo effect which is low energy, bursty and non-linear may be identified and replaced with noise fill.
Patent CA-2235969-A1 (CA)
Title: Method of operating a downhole shut-in tool
Inventor: SCHULTZ ROGER L
IPC: E21B47/12
Filed: 1993-04-13
Abstract: A method of  operating  a  downhole  shut-in tool defining a low pressure zone therein and having a shut-in valve to control flow of the well fluid through a  production  tubing  string.    The  method  comprises closing the shut-in valve by application thereto of a force generated by a pressure differential between the low pressure zone and well pressure in the production tubing string.
Patent CA-2237332-A1 (CA)
Inventor: ALEXANDER MICHAEL
IPC: A61G5/00
Filed: 1997-09-12
Abstract: A support unit for a human body wherein one part of the body can be located at different relative positions relative to another part characterised by: a chassis (12), a working carrier (14) for a human body comprising a first section (15) for the trunk, a second section (16) for the thighs, and a third section (17) for the legs; a waist coupling (A); a knee coupling (B); the waist axis (A') being parallel to the knee axis (B') and separated substantially by the length (L2) of the second section (16); the working carrier (14), at least with the first (15), second (16) and third section (17) lying in a substantially common horizontal plane, having in plan overall dimensions (L, W) substantially greater than the overall dimensions (L', W') in plan of the chassis (12); a frame member (22) slidably retaining the first section (15) and to support the working carrier (14); a column (21, 21A) of variable length extending between the chassis (12) and the frame member (22);  a link (40) having a first end (22L) pivotably attached to the frame member (22) and the other end to the first end pivotably attached to the second section (16) or an extension thereof in the region of the knee axis (B'); a first longitudinal actuator (24) having a first end (24A) pivotably attached to the column (21, 21A) or an extension thereof and the other end (24B) to the first end pivotably attached to the frame member (22); a second longitudinal actuator (25) having a first end (25A) pivotably attached to the frame member (22) or an extension thereof and the other end (E) to the first end pivotably attached to the first section (15); control means (29, 30, 31) regulating operation of the column (21) and the alignment means; and means (28) for energising the column and alignment means.
Patent CA-2237413-A1 (CA)
Title: Device for validating digital messages, applicable notably to rail traffic control systems
Inventor: DEMARAIS GERARD
IPC: B61L19/06
Filed: 1998-05-06
Abstract: The fail safe validation technique controls the identity of two digital signals. One digital signal (A) is applied to one side of a Wheatstone bridge (2), whilst an inverted signal B is applied to the opposite side of the diode bridge. The output passes through a static relay (5) and an amplifier (6) to provide a secure "all or nothing" output signal S.
Patent CA-2238334-A1 (CA)
Title: Autonomous downhole oilfield tool
Inventor: MCINTYRE THOMAS W
IPC: E21B47/00
Filed: 1997-09-23
Abstract: An autonomous downhoIe oilfield tool having its own mobility and decision making capability so that it may be deployed in a downhole environment to monitor and control said environment by modifying operations of other devices and maintaining downhole structures.
Patent CA-2240610-A1 (CA)
Inventor: KRUSE WILLIAM D
IPC: H01S3/0953
Filed: 1998-06-12
Abstract: -A high-efficiency, low weight ejector and ejector system is provided wherein the primary gas to the ejector is the reaction product of a hydrocarbon fuel and decomposed hydrogen peroxide. In a preferred embodiment, the ejector is made substantially from a carbon-carbon fiber composite material.
Patent CA-2242168-A1 (CA)
Inventor: JOHNSON THOMAS M
IPC: A47L15/48
Filed: 1998-07-03
Abstract: The present invention relates to a vent seal device for an automatic dishwasher.  The dishwasher includes a door having a vent opening therein.  An elongated flexible strip is mounted in the door adjacent and generally registered with the vent opening.  The strip has opposite ends and a central portion therebetween.  At least one end of the strip is secured against movement with respect to the frame. During certain times of the wash and rinse cycles the strip is deflected into sealing engagement with the vent opening, thereby closing the normally open vent opening.
Patent CA-2245276-A1 (CA)
Title: Beverage dispensing machine and method of operation thereof
Inventor: BAUMAN EDWARD FREDERICK
IPC: G07F5/26
Filed: 1998-08-10
Abstract: A dispensing machine is used to disperse plastic water bottles and the like, preferably of a size ranging from approximately one litre to approximately two litres or even larger. The machine can be used to dispense other products in containers as long as the containers are shaped to roll along a shelf. The machine has a vertical channel containing paddles where each paddle supports only some of the containers in the channel when the channel is filled with containers. The paddles move simultaneously to gently lower the containers one space at a time when the machine is activated.
Patent CA-2247267-A1 (CA)
Inventor: GHAHARY AKBAR
IPC: B44F9/04
Filed: 1997-01-06
Abstract: The subject invention provides a method for producing a laminated article and the laminated article resulting from such method which comprises contacting a rigid substrate (8) with a plastic material (7) in a liquid or semi-liquid state, the plastic material being held in place by a gasket (9) or spacer and in contact with a flexible film (6) and maintaining contact between the substrate (8) and plastic material (7) under conditions so that the plastic material (7) hardens and adheres to the substrate (8) to form the article. The invention also concerns a plastic edge piece (18) which may be cast and attached to the exposed edges of the laminated article and which has the same appearance as the plastic laminate.
Patent CA-2248303-A1 (CA)
Title: Sels d'amides perfluores, et leurs utilisations comme materiaux a conduction ionique
Inventor: ARMAND MICHEL
IPC: H01M8/00
Filed: 1997-12-30
Abstract: L'invention concerne des composés ioniques dans lesquels la charge anionique est délocalisée. Un composé de l'invention est constitué par une amide ou l'un de ses sels, comprenant une partie anionique associée à au moins une partie cationique M+m en nombre suffisant pour assurer la neutralité électronique de l'ensemble. M est un hydroxonium, un nitrosonium NO+, un ammonium -NH4+, un cation métallique ayant la valence m, un cation organique ayant la valence m ou un cation organo-métallique ayant la valence m. La partie anionique répond à la formule RF-SOx-N-Z dans laquelle RF est un groupe perfluoré, x est 1 ou 2, et Z est un substituant électroattracteur. Les composés sont utiles notamment pour les matériaux à conduction ionique, les matériaux à conduction électronique, les colorants et la catalyse de diverses réactions chimiques.
Patent CA-2248701-A1 (CA)
Inventor: INSPEKTOR AHARON
IPC: C23C16/22
Filed: 1997-01-15
Abstract: A coating scheme comprising a boron and nitrogen containing layer that satisfactorily adheres to a substrate (2) is disclosed. The satisfactorily adherent coating scheme comprises a base layer (4), a first intermediate layer (6), a second intermediate layer (8) and the boron and nitrogen containing layer (10). The coating scheme is compatible with tooling for drilling, turning, milling, and/or forming hard, difficult to cut materials. The coating scheme has been applied to cutting inserts comprised of cermets or ceramics using PVD techniques. The boron and nitrogen layer preferably comprises boron nitride and, more preferably, cubic boron nitride.
Patent CA-2254974-A1 (CA)
Inventor: WYVRATT MATTHEW J JR
IPC: A61K31/506
Filed: 1997-05-16
Abstract: L'invention concerne des composés ayant la formule (I) et des sels pharmaceutiquement acceptables desdits composés, qui sont utiles comme antagonistes du Gn-RH et, en tant que tels, peuvent être utilisés dans le traitement d'une variété de maladies liées à l'hormone sexuelle chez l'homme et la femme.
Patent CA-2257915-A1 (CA)
Title: Hamecon et son noeud d'accrochage
Inventor: TURNER JEFFREY WILLIAM
IPC: A01K91/03
Filed: 1997-06-13
Abstract: L'invention porte sur un hameçon (10) comportant: une section hameçon (11), une tige (12) prolongeant la section hameçon (11), une section d'accrochage de la ligne (13) dans laquelle s'engage la ligne (17) de sorte qu'elle puisse être fixée à l'hameçon (10). Ladite section d'accrochage comporte une paire de branches (14, 15) concourant vers un point de jonction, dont l'une d'elles (14, 15) présente une extrémité libre (16), et l'autre, se trouve dans le prolongement de la tige (12). Chacune des branches comporte une portion d'engagement de la ligne (33) et les branches sont séparées d'une distance au moins égale à une fois le diamètre de la ligne (17). L'invention porte également sur un noeud d'accrochage de l'hameçon (10) et sur sa méthode de formation.
Patent CA-2259227-A1 (CA)
Title: Asa sizing emulsions containing low and high molecular weight cationic polymers
Inventor: GLOVER DANIEL E
IPC: C08L79/00
Filed: 1997-06-25
Abstract: ASA sizing emulsions containing low and high molecular weight cationic polymers are described. An ASA sizing emulsion of the invention contains 25 to 99 percent by weight water, 0.003 to 60 percent by weight ASA, 0.003 to 50 percent by weight of a cationic polymer mixture, and 0 to 2 percent by weight of a surfactant. The cationic polymer mixture contains 75 to 99 percent by weight of an ionene polymer and 1 to 25 percent by weight of a high molecular weight polyethyleneimine polymer. In the sizing emulsion, the ASA has a particle size ranging from 0.5 to 3 microns. A method for sizing paper using such an emulsion is also described.
Patent CA-2261530-A1 (CA)
Title: Photometric readhead with light-shaping plate
Inventor: DOSMANN ANDREW J
IPC: G01N21/25
Filed: 1999-02-15
Abstract: A readhead for a spectrometer for illuminating a target area and receiving light from said target area is provided with a housing adapted to be incorporated in a spectrometer, a light source mounted in a fixed position relative to the housing, a support mechanism adapted to support a biological sample to be illuminated by the light source, a light-shaping mechanism disposed between the light source and the support for increasing the diameter, intensity, and uniformity of the light beam, and a photodetector mounted in fixed position relative to the housing, the photodetector being adapted to detect light from a biological sample disposed in the target area illuminated light sources. The light sources may be in the form of a light-emitting diodes that emits substantially monochromatic light having a first wavelength, and the readhead may also include a second light-emitting diode that is adapted to emit substantially monochromatic light of a second wavelength towards the target area.
Patent CA-2261799-A1 (CA)
Title: Composition comprising insulin and insulin-like growth factor-i (igf-i)
Inventor: CLARK ROSS G
IPC: A61P3/10
Filed: 1997-07-31
Abstract: Formulations containing NPH insulin are useful for treating hyperglycemic disorders, such as diabetes, in a mammal in need of treatment. One such formulation, which is preferably administered parenterally, more preferably by injection, comprises IGF-I and NPH  insulin, in amounts of from or about 1 to 10 mg IGF-I and from or about 0.2 to 2 mg NPH insulin in a pharmaceutically acceptable carrier.  Another such formulation comprises IGF-I and NPH insulin in an acetic acid salt buffer. Still another formulation comprises IGF-I and NPH insulin in a weight ratio of NPH insulin to IGF-I of from or about 10:1 to 1:50 (w/w), from or about 0.05 to 0.3 M of an osmolyte, from or about 0.1 to 10 mg/mL of a stabilizer, and from or about 5 to 100 mM  of a buffer at from or about pH 5 to 7. A still further composition comprises NPH insulin in an acetic acid salt buffer.
Patent CA-2262867-A1 (CA)
Inventor: ANGELES NOEL TITCO
IPC: F24C7/00
Filed: 1999-02-23
Abstract: A fireplace has a simulated wood fire display that includes simulated firelogs. The display includes an electric heating element for operable to give ember or log simulating material a glowing appearance. The glowing caused by the electric element can be used alone or in conjunction with a gas burner that produces a flame display. The glowing can be caused to vary over time to yield a changing fireplace appearance.
Patent CA-2263626-A1 (CA)
Inventor: VEITHEN DANIEL
IPC: G06F17/14
Filed: 1999-03-12
Abstract: A pipelined Fast Fourier Transform Processor includes, besides a memory arrangement, a cascade of a first arithmetic unit, a scratch memory and a second arithmetic unit. One of both arithmetic units can only perform at least one type of butterfly Fast Fourier Transform arithmetic calculations, whereas the other one can perform, besides this at least one type of butterfly Fast Fourier Transform arithmetic calculations, at least one second type of butterfly Fast Fourier Transform arithmetic calculations. This architecture optimises both timing as well as circuit restrictions.