baber/WOPTO huggingface dataset:
Patent CA-2300213-A1 (CA)
Title: Ozone purification process
Inventor: JI WENCHANG
IPC: C08K3/36
Filed: 2000-03-08
Abstract: An ozone-oxygen gas stream is introduced into feed side of a membrane separation unit containing an elastomeric polymer membrane. Ozone-enriched gas passes through the membrane to a permeate zone and is contacted with an ozone-reactive substance-containing gas stream in the permeate zone, thereby oxidizing the substances or is removed from the permeate zone. Removal of the ozone-enriched gas from the permeate zone may be effected by purging the permeate zone with an inert gas and/or evacuating the permeate zone. Ozone-enriched gas removed from the permeate zone may be mixed with a liquid or gas stream which contains ozone- reactive substances in, for example, a venturi device, thereby oxidizing the substances.
Patent CA-2301388-A1 (CA)
Inventor: ROUND GEORGE F
IPC: F03B3/04
Filed: 2000-03-20
Abstract: An efficient water turbine and having a venturi shaped tubular flow chamber with an outer wall open at its top end and bottom ends and narrower at a lower point, a central axial guide body within the chamber, angled guides vanes in the chamber extending from the guide body to the chamber wall for guiding water flowing downwardly and causing it to spin into a vortex, a rotatable runner body located below the guide vanes, and, a plurality of blades on the runner body angled to catch water flowing off the vanes. Also disclosed is a hydro electrical generator installation having a water flow passage and a roof and a floor and a tail race below the floor, with a generator above the roof, a turbine in the water flow passage and extending through the floor, and a method of generating electricity from water flows using such a turbine, and the use of a dam , gate, and penstock , and a flow regulator in the turbine to maintain a constant head of water for operation of the turbine. Also disclosed is a method of generating electricity, and varying the water flow through the turbine to regulate the frequency of the electricity generated.
Patent CA-2302875-A1 (CA)
Inventor: ASAKURA TOSHIKAGE
IPC: C07D333/22
Filed: 2000-03-29
Abstract: Compounds of formula I, II and III, wherein (see formula I) wherein R1 is for example hydrogen, C1-C12alkyl, C3-C30cycloalkyl, C2-C12alkenyl, C4-C8cycloalkenyl, phenyl, which is unsubstituted or substituted, naphthyl, anthracyl or phenanthryl, unsubstituted or substituted, heteroaryl radical which is unsubstituted or substituted; wherein all radicals R1 with the exception of hydrogen can additionally be substituted by a group having a -O-C-bond or a -O-Si-bond which cleaves upon the action of an acid; R'1 is for example phenylene, naphthylene, diphenylene or oxydiphenylene, wherein these radicals are unsubstituted or substituted; R2 is halogen or C1-C10haloalkyl; R3 is for example C1-C18alkylsulfonyl, phenylsulfonyl, naphthylsulfonyl, anthracylsulfonyl or phenanthrylsulfonyl, wherein the groups are unsubstituted or substituted, or R3 is e.g. C2-C6haloalkanoyl, or halobenzoyl, R'3 is for example phenylenedisulfonyl, naphthylenedisulfonyl, diphenylenedisulfonyl, or oxydi-phenylenedisulfonyl, wherein these radicals are unsubstituted or substituted, X is halogen; are especially suitable as phototsensitive acid-donors in chemically amplified resist formulations.
Patent CA-2304771-A1 (CA)
Inventor: TATEISHI HIDEAKI
IPC: A01N63/27
Filed: 1998-09-22
Abstract: Cette invention a trait à une méthode de criblage de bactéries dotées d'une activité antagoniste à l'encontre de bactéries pathogènes produites durant la montée de graminées ou lors de leur semis. On utilise, dans le cadre de cette méthode, la résistance à la tropolone ainsi que la non production de tropolone comme indicateurs. L'invention concerne également un produit chimique agricole microbien renfermant, en tant qu'ingrédient actif, des bactéries résistantes à la tropolone et inaptes à produire ladite tropolone, ou bien des spores de ces bactéries ayant été sélectionnées à l'aide de la méthode de criblage susmentionnée.
Patent CA-2305157-A1 (CA)
Inventor: EMALFARB BRADLEY S
IPC: A01G25/16
Filed: 1998-09-08
Abstract: The combination of a growing medium (26) for a horticultural product (29), a horticultural product (29) within the growing medium (26), and a sensor (10) having a body (12) made up of a porous material (22) that changes in physical appearance with a change in the amount of moisture retained by the porous material (22). In an operative state, the first part (30) of the sensor body (12) resides within the growing medium (26) and a second part (32) of the body (12) remains visible to allow a user to ascertain through the appearance of the second part (32) of the sensor (10) the amount of moisture in the growing medium (26).
Patent CA-2307091-A1 (CA)
Title: Self-contained masthead units for cellular communication networks
Inventor: WAYLETT NICHOLAS S A
IPC: H01Q1/24
Filed: 1998-10-21
Abstract: An improved modular masthead for use in cellular communications networks is described. The masthead unit includes a power amplifier, a duplexer and a local power supply that supplies the power amplifier. The power amplifier is arranged to amplify outgoing communication signals received from a base station. In a preferred embodiment, the masthead also includes a low noise amplifier for amplifying incoming communication signals and passing the amplified incoming communication signals to an associated base station. With this arrangement, the masthead forms a modular unit is distinct form the base station such that the modular masthead may be replaced independently of the base station. With this arrangement the range of a cell within a cellular network may be changed by simply swapping an existing masthead unit with a second masthead unit having a different power supply thereon and making software changes in the system. Thus, the range of the cell within the cellular network may be changed without changing any hardware in the base station.
Patent CA-2307106-A1 (CA)
Inventor: ARCHIBALD ROBERT SCOTT
IPC: C09K15/24
Filed: 1998-09-21
Abstract: La présente invention concerne des composés comportant des substitutions doubles d'une amine aromatique et une fonctionnalité phénol bloquée, et convenant comme stabilisants pour des substances organiques. Ces composés sont représentés par la formule générale (I) dans laquelle ? est tel que représenté par la formule spécifique (II). En outre, R¿1? et R¿2? appartiennent indépendamment au groupe des hydrogène, aryle substitué ou non substitué, et C¿1?-C¿20? alkyle substitué ou non substitué. R¿3? est C¿1?-C¿10? alkylène. "m" vaut 0 ou 1. "n" est un entier valant 1 à 10. "q" est un entier valant de 0 à 8. "z" vaut 1 ou 2; toutefois, "z" doit valoir 1 dès lors que "q" vaut 0. X représente les liaisons des q liaisons de la longueur d'une chaîne, lesquelles liaisons appartiennent au groupe des carbone, azote, oxygène, soufre, silicium et certains de leurs mélanges. Y est un groupe aromatique ou ?, mais Y ne peut être ? que si q vaut 0 et m vaut 1.
Patent CA-2310093-A1 (CA)
Title: Projection welded panel spacer and method of making the same
Inventor: GASS BRUNO
IPC: B21D35/00
Filed: 1998-11-12
Abstract: A method for making a spacer assembly comprises: forming a plurality of projections (56) along an edge of a portion of sheet metal; roll forming the portion of sheet metal into a tubular configuration (72); positioning the roll formed portion of sheet metal and a metal base member (16) to which the roll formed portion of sheet metal is to be welded in a discharge welding apparatus having a pair of electrodes so that the projections (56) of the roll formed portion of sheet metal contact a surface of the metal base member (16); providing a force so that the projections are disposed in forcible engagement with the surface of the metal base member, and supplying an electrical current between the pair of electrodes and through the roll formed portion of sheet metal and the metal base member so that the projections reach a molten metal stage and are subsequently solidified to enable the roll formed portion of sheet metal to be welded to the metal base member.
Patent CA-2312137-A1 (CA)
Inventor: SASAKI YUHI
IPC: H04L12/46
Filed: 2000-06-23
Abstract: An automatic repeater/bridge changeover device includes: port/portal units each of which is connected to the IEEE1394 bus; physical layer processing units which are connected to the port/portal units, respectively; link layer processing units which are connected to the physical layer processing units, respectively; and an upper-level layer processing unit which is connected to the link layer processing units. The automatic repeater/bridge changeover device also includes: a repeater fabric with switch which is connected between the physical layer processing units; a bridge fabric with switch which is connected between the physical layer processing units; and a controller which performs the switching control over the switches of the repeater and bridge fabrics.
Patent CA-2313648-A1 (CA)
Inventor: BUSCHERINI ROBERTO
IPC: B65B11/02
Filed: 1998-12-04
Abstract: In wrapping palletized loads with stretchable film having an elastic memory, when the wrapping is about completed, a distancing device is placed close to the wrapped load on which the last wrapping turn rests, so that a pocket is formed in the turn. The carriage of the wrapping machine is stopped in a predetermined angular position and the film tail is aligned and placed in a main clamp and a secondary clamp. Subsequently, a cutting device cuts the film between the two clamps, and the main clamp holding the leading end coming from the wrapping machine carriage moves backward at rest. The other clamp holding the tail end is introduced into the pocket and then opens and is drawn out from the pocket together with the distancing device, so that the wrapping tail gets caught and blocked by friction in the last turn which shrinks flat.
Patent CA-2318222-A1 (CA)
Inventor: BROWER GREGORY A
IPC: B60J7/10
Filed: 1999-01-15
Abstract: A system for removably attaching a tonneau cover (1) over the bed (19) of a pickup truck (3) or similar vehicle. The system includes front (5), rear (9), and side rails (7). The front (5) and two side rails (17) are respectively secured in fixed positions atop the front (15) and side (17) walls of the bed (19). The rear rail (9) is then suspended to extend between the two side rails (7) across the mouth of the tailgate opening. The ends (9') of the rear rail (9) are inserted into longitudinally extending channels (33) in the side rails (7) and can be slid relative to the fixed, front (5) and side (7) rails. The system also can include one or more support bows (21) that can be inserted into the channels (33) in the fixed, side rails (7) and slid relative to them to spaced positions intermediate the front (5) and rear (9) rails. With the slidable, rear rail (9), the cover (1) can be selectively tensioned or loosen to ease putting the cover (1) over the bed (19) and taking it off. The tailgate (23) and rear rail (9) sealingly engage each other when the tailgate (23) is closed to make the system substantially watertight.
Patent CA-2318701-A1 (CA)
Title: Production method of citalopram, intermediate therefor and production method of the intermediate
Inventor: IGI MASAMI
IPC: C07C65/00
Filed: 2000-09-13
Abstract: Citalopram can be industrially and economically produced and at a high yield by reacting a compound of the following formula [VI] with 3-(dimethylamino)propyl chloride in the presence of at least one of N,N,N',N'-tetramethylethylenediamine and 1,3-dimethyl-2-imidazolidinone and a condensing agent. The compound of the following formula [III], which is a key compound for the production of citalopram, can be easily produced by subjecting the compound of the following formula [II] to reduction and cyclization.
Patent CA-2319470-A1 (CA)
Title: Apparatus for running two tubing strings into a well
Inventor: VALENTINE LARRY R
IPC: E21B7/08
Filed: 1999-01-29
Abstract: A well has a vertical casing (13) with a window (14), and a lateral wellbore which communicates with the window, and which may have a casing (18) or liner. A window assembly (31) aligned with the window (14) has respective passageways for first (51) and second (52) tubing strings, and has a concave surface (36) for deflecting the first tubing string out into the lateral wellbore. The passageway for the second tubing string has a portion which is inclined at a very small angle with respect to a vertical centerline of the vertical casing. As the first tubing string is run into the vertical casing, a rotational locator (126) is releasably coupled thereto by a soft release coupling mechanism (176). After the locator effects rotational orientation, the coupling mechanism (176) is released and then permits the first tubing string (51) to move therepast without damage. A seal assembly (56) on the first tubing string (51) is covered by a protective sleeve (147) as it is inserted into the well, and exits the protective sleeve (147) after entering the lateral wellbore.
Patent CA-2319684-A1 (CA)
Inventor: BONDU LUCIEN
IPC: B60C9/18
Filed: 1999-02-02
Abstract: Pneumatique à armature de carcasse radiale (1), surmontée d'une armature de sommet comprenant au moins deux nappes (32 et 33) d'éléments de renforcement, croisés d'une nappe (32) à la suivante (33), lesdites deux nappes (32, 33) ayant des largeurs axiales inégales, caractérisé en ce que chaque bord de la nappe axialement la moins large (33) est séparé de la nappe axialement la plus large (32) par un profilé (P) de mélange caoutchouteux, ledit profilé (P) étant lui-même séparé du calandrage (C) de la nappe la moins large (33) par une gomme de bordure (G), ledit profilé (P), ladite gomme de bordure (G) et ledit calandrage (C) ayant respectivement des modules d'élasticité à 10 % d'allongement MP, MG, MC de sorte que: MC MGMP.
Patent CA-2320097-A1 (CA)
Title: Hollow, curved, superelastic medical needle
Inventor: MCGUCKIN JAMES FREDERICK
IPC: A61B17/34
Filed: 1999-12-09
Abstract: A needle assembly (10) comprising an infusion needle (11) that includes a needle cannula (13) made of a superelastic material such as nitinol. The needle cannula is cold-worked or heat annealed to produce a preformed bend (16) that can be straightened within passageway (21) of a coaxial outer cannula (12) for introduction into the body of a patient. Upon deployment from the outer cannula, the needle cannula substantially returns to the preformed configuration for the introduction or extraction of materials at areas lateral to the entry path of the needle assembly. The needle assembly can comprise a plurality of needle cannulae that can be variably arranged or configured for attaining a desired infusion pattern.
Patent CA-2320194-A1 (CA)
Inventor: AUGUSTINUS GREG
IPC: H04W36/14
Filed: 1999-02-05
Abstract: A method and system for selecting control channels from base stations located near a border (71) between radio telecommunications network (C,O). The system includes a first mobile switching center MSC (33) that services and controls a coverage area associated with a first radio telecommunications network (C), a plurality of base stations (34-49) located within the first radio telecommunications network, and a plurality of base stations (55-67) located within the second radio telecommunications network (D). Additionally, the system includes redirection logic (35) located within the first MSC which determines if a mobile station MS (69) from the second radio telecommunications network is attempting to access a base station in the first radio telecommunications network which is adjacent to the border between the first and second radio telecommunications networks and redirects the MS to access a control channel from a base station located within the second radio telecommunications network. The system may also include a second MSC with redirection logic for redirecting mobile stations to their home radio telecommunications network.
Patent CA-2321959-A1 (CA)
Title: Methods for diagnosing and treating autoimmune disease
Inventor: FAUSTMAN DENISE L
IPC: A61K38/00
Filed: 1999-02-25
Abstract: The invention provides a method of detecting autoimmune disease in a mammal, comprising providing a biological sample from a mammal and detecting proteasome activity, wherein a reduction in proteasome activity from a basal state is indicative of autoimmune disease. In addition, the invention encompasses a method of treating an autoimmune disease in a mammal, comprising administering to a mammal suspected of suffering from an autoimmune disease an agent which restores NFB activity in an amount and for a time sufficient to result in normal NFB activity in the mammal.
Patent CA-2323216-A1 (CA)
Inventor: BLACKIE KATRINA
IPC: C22C38/04
Filed: 1998-05-20
Abstract: The application describes a steel composition consisting essentially of:  Carbon 0.50 - 0.70 weight %, Silicon up to 0.40 weight %, Manganese 0.55 -1.00 weight %, Phosphorus 0.030 - 0.070 weight %, Sulphur 0.055 to 0.110 weight %, Chromium up to 0.50 weight %, Molybdenum up to 0.10 weight %, Nickel up to 0.5 weight %, Copper up to 0.50 weight %, Aluminium up to 0.050 weight %. Optionally, Vanadium sufficient to maintain yield strength, Nitrogen up to 0.030 weight %, together with, optionally, Lead up to 0.4 weight %, and unavoidable impurities, the balance being iron. This steel composition exhibits mechanical properties which are suitable for use in connecting rods but which provide both good fracture splitting performance and good machinability when compared to C70S6 alloys. The application also refers to a fracture splittable steel including between 0.50 to 0.70 wt.% C, 0.55 to 1.00 wt.% Mn, 0.030 to 0.070 wt.% P and 0.055 to 0.110 wt.% S, and with an elongation of 25 % or less, a reduction of area below 25 %, and a V20 machinability (m/min) satisfying the equation: V20  80 - 0.2H where H is the HV30 hardness of the steel.
Patent CA-2324413-A1 (CA)
Title: Device and methods for single step collection and assaying of biological fluids
Inventor: LEE JIN PO
IPC: B01L3/00
Filed: 1999-08-18
Abstract: Devices, and methods for the use of same, for collecting and assaying a biological fluid in a single step. One method provides means to control and direct the flow of a sample of the biological fluid directly onto an assay test strip by disposing the assay test strip within a flow control channel in which the internal ambient pressure is maintained in substantial equilibrium with the ambient pressure outside of the flow control channel, such that essentially no pressure gradient is formed within the flow control channel. The devices include the flow control channel, at least one assay test strip and a fluid sample collection container, such as a urine cup, for insertion of the flow control channel therein.
Patent CA-2326092-A1 (CA)
Inventor: LOMAN MARTINUS HENDRICUS
IPC: H01R12/50
Filed: 2000-11-14
Abstract: A connector comprises a housing of insulating material and a metal plate attached to a surface of the housing. This surface is provided with a plurality of pegs of insulating material and the metal plate is provided with a plurality of fixation holes co-operating with the pegs to attach the metal plate to the housing. The passage of each fixation hole of the plate is smaller than the cross-section of the corresponding peg of the housing. The plate is further provided with an entrance hole for each fixation hole. This entrance hole de-bouches into the fixation hole and has a passage larger than the cross-section of the corresponding peg. The connector is manufactured in that the metal plate is placed on said surface with the entrance holes receiving the pegs with play, whereafter the metal plate is moved along the surface such that the pegs are forced into the fixation holes.
Patent CA-2326197-A1 (CA)
Title: Method and system for enabling real-time interactive e-commerce transactions
Inventor: ZETTS JOHN M
IPC: H04N7/173
Filed: 2000-11-17
Abstract: Aspects for enabling real-time interactive e-commerce transactions over television systems are described. The aspects include forming interactive icon data for a program. A time for broadcasting the program during a broadcast is detected. The interactive icon data is then decoded substantially simultaneously with compressed encoding of the program for real-time insertion of the interactive icon data with the program.
Patent CA-2326496-A1 (CA)
Title: Cloning and expressing the aspergillus oryzae bgii .beta.-glucosidase gene
Inventor: RIOU CHRISTINE
IPC: C12N15/56
Filed: 1999-04-23
Abstract: The invention concerns the cloning of a gene coding for a fungal .beta.-glucohydrolase homologous of the <u>BGII</u> .beta.-glucosidase, and its use for expressing said .beta.-glucohydrolase. The invention also concerns the uses of .beta.-glucohydrolase produced by the cells transformed by said gene.
Patent CA-2327247-A1 (CA)
Inventor: PELKA DAVID G
IPC: F21V8/00
Filed: 1999-04-07
Abstract: An illumination device (40) comprises a waveguide (46) having a peripheral edge (62). A  series of point light sources (50) are mounted in spaced relationship adjacent a peripheral portion of the waveguide. A series of diffusive reflective surfaces (65), preferably formed by posts, are disposed adjacent the peripheral portion of the waveguide, between pairs of the point light sources.  The diffusive reflective surfaces are oriented relative to the series of point light sources and the waveguide so as to introduce light into regions (70) of the waveguide between pairs of the point light sources, whereby the peripheral portion of the waveguide is substantially uniformly illuminated.
Patent CA-2328142-A1 (CA)
Inventor: SUMMERS MALCOLM ROBERT
IPC: C08J7/04
Filed: 2000-12-13
Abstract: Methods are described for coating a surface of an article with a polymer comprising monomers of p-xylylene, and/or ring halogenated p-xylylene, and/or p-fluoromethyl-xylylene and adsorbing macromolecules thereto. Reaction vessels comprising such polymer-coated surfaces and macromolecules adsorbed thereto are useful for adsorption and solid-phase separation of reactants in analytical methods.
Patent CA-2330198-A1 (CA)
Inventor: MCDONELL MICHAEL
IPC: G03D3/06
Filed: 2001-01-03
Abstract: An apparatus for discharging effluent from a photographic process, such as developing liquid to a drain. The effluent can be, for example, de-silvered, spent fixer liquid, and spent developer liquid, which if mixed together, particularly in the presence of oxygen, form a solid iron oxide precipitate which becomes a sludge and eventually clogs pipes and drains. The apparatus includes two separate reservoirs for holding the liquids and two separate pumps for pumping the liquids to a drain, while minimizing the risk of clogging in the pipes and drain from precipitate formation.