baber/WOPTO huggingface dataset:
Patent CA-2177974-A1 (CA)
Title: Holding device with a cylindrical container and blood sampling tube with such a holding device
Inventor: KONRAD FRANZ
IPC: B01L3/14
Filed: 1994-12-21
Abstract: A holding device for liquids comprises a container open at one end and formed of a light-tight wall which is sealed at an opposite end, and an outer housing open at one end and formed of a gas-tight wall. The container is inserted coaxially in the outer housing, with a substantial portion of the outer surface of the container wall contacting the inner surface of the housing wall without play whereby the container is held in the outer housing by a press fit. The outer surface of the container wall defines at least one continuous groove extending from the sealed ends of the container and outer housing walls to the open container and outer housing walls.
Patent CA-2183225-A1 (CA)
Title: Apparatus and method for selective separation of hydrophobic material
Inventor: FIRTH BRUCE ANDREW
IPC: B03D1/14
Filed: 1995-02-14
Abstract: Hydrophobic material is selectively separated from an aqueous feed by forming gas bubbles in a flow of the feed, forming hydrophobic material/gas bubble aggregates by motionless mixing and separating the aggregates as a froth by use of centrifugal action.
Patent CA-2183879-A1 (CA)
Inventor: CLEMENZ GARY E
IPC: G01R31/06
Filed: 1995-03-14
Abstract: Stator coils having lead wires inserted into temporary wire clamps (36) at a winding station are electrically tested before the coil lead wires are removed from the temporary clamps. In one aspect, the clamps each include a jaw (54) formed with a wire-engaging surface (88) which scrapes the insulating coating off from a lead wire as it is inserted therein. The clamps are electrically connected to terminal members (90) which are engageable by electrical test terminal members (100). In a modification, the clamps include a wire-scraping jaw having, in addition to a body formed with a sharpened or knife edge, a shield having wire-guiding surfaces engageable by a lead wire being inserted into the clamp. The wire-guiding surfaces are located adjacent the knife edge and are so positioned that the depth of the insulated wire scraped or cut away by the knife edge is only a few thousandths of an inch.
Patent CA-2187090-A1 (CA)
Title: Process for separating material from mixture using displacement chromatography
Inventor: ASHER WILLIAM J
IPC: G01N30/02
Filed: 1995-02-23
Abstract: A separation process is described for separating a known material from a mixture of materials (which may contain unknown materials) using displacement chromatography. The process comprises passing a mixture of materials, including a known material to be recovered, dissolved in a liquid carrier, if necessary, through a first packed column and into a second packed column until all of the known material has passed through the first column and has been loaded onto the stationary phase packing in the second column. A displacement agent capable of being more strongly bound on the stationary phase packing in the second column than the known material, is then passed through the second column to displace from that column all of the materials in the mixture less strongly bound than the known material and then to displace the known material from the second column. The columns are then regenerated, preferably by passing a carrier direction through column 2 (in the forward direction of flow) and then passing the effluent from column 2 through column 1 in a reverse direction. The flow through column 2 is continued until all of the displacement agent has been removed from column 2. In one embodiment, a solvent is also counter flushed through the first columm to dissolve any precipitates therein.
Patent CA-2187487-A1 (CA)
Inventor: KUCKES ARTHUR F
IPC: E21B47/022
Filed: 1996-10-09
Abstract: A method for determining the distance and direction from a first borehole to a second borehole includes generating, by way of a rotating magnetic field source at a first location in a second borehole, and elliptically polarized magnetic field in the region of the first borehole. First and second sensors positioned at an observation point in the first borehole measure the amplitude and relative phase of respective first and second components of the polarized magnetic field and from these measurements, the direction, relative to the sensors, from the observation point to the first location is determined. The distance between these points is determined by measuring at plural observation points amplitude variations with depth of the rotating magnetic field in the first borehole, and computing theoretical variations in the amplitude for different assumed distances between the observation points and the location of the magnetic field source. The measured amplitude variations are compared with theoretical variations to determine the distance between the first and second boreholes.
Patent CA-2188398-A1 (CA)
Title: Leaching in the presence of abrasive
Inventor: BUZA THOMAS B
IPC: C22B3/14
Filed: 1994-04-19
Abstract: The invention relates to a process for leaching copper and or nickel values from feed solids with a lixiviant containing ammonia and ammonium bisulfite with agitation in the presence of relatively larger abrasive solids and an oxidant, preferably air or oxygen. The solids scrub the surface of the feed solids and aid an the constant exposure of fresh surfaces for increased leaching kinetics as well as overall extractions. The process is particularly useful for solids containing copper sulfides.
Patent CA-2190552-A1 (CA)
Title: Method and Apparatus for Wireless Communication System Organization
Inventor: CHAWLA KAPIL K
IPC: H04B7/26
Filed: 1996-11-18
Abstract: A level of system self-organization in a wireless communication system is provided using a combined design, planning and verification process to determine system organization parameters. The process determines the parameters based on a measured path loss-related characteristic, such as path loss or bit error rate, between base stations and a plurality of regions in a coverage area. For each region, the characteristic is measured to each base station irrespective of the proximity between the region and the base stations. The measured characteristics enable the prediction of signal strength received at the regions of signals transmitted by the base stations independent of the region location. Accordingly, the characteristics can be measured without information correlating the absolute geographic locations of the regions. The resulting unique characterization of the path loss-related information can be used to determine a variety of system organization parameters, such as the number and transmission power of base stations, neighbor lists, sets of base stations that can reuse channels and the identity of base stations, if any, that can be omitted from the system.
Patent CA-2197312-A1 (CA)
Title: Enhancements in pulping with dissolved solids control
Inventor: PROUGH J ROBERT
IPC: D21C7/08
Filed: 1995-06-01
Abstract: The sulfide ion concentration and sulfidity of kraft cooking liquor during kraft cooking of cellulose pulp is selectively increased. After treatment in a first treatment zone in which impregnation or kraft cooking takes place using a kraft cooking liquor having a first sulfide ion concentration and sulfidity, black liquor is extracted from the material, liquid is withdrawn from the material and dilution liquid is added to the withdrawn liquid and the withdrawn liquid with dilution liquid is reintroduced. In a second treatment zone after the first zone a second kraft cooking liquor is introduced having a second sulfide ion concentration and sulfidity greater than the first sulfide ion concentration and sulfidity (typically by about 20-50%), including by manipulating controlling the flow rate of extraction and the flow rates of withdrawal of liquid and addition of dilution liquid.  The pressure of the continuous digester is controlled in a unique manner that avoids disruptions to the column of pulp continuously moving downwardly in the digester, anywhere in the digester, but particularly avoids non-uniform, unstable material in the countercurrent washing zone. The pressure is controlled by withdrawing liquid from, and introducing liquor into, the digester at at least one additional extraction-dilution loop aside from the main extraction of the digester and the wash dilution liquid introduction mechanism below the wash screens. Pressure can also be maintained (e.g. at about 130-170 psi) by also controlling the amount of wash dilution liquor, and by varying the extraction flow.
Patent CA-2197779-A1 (CA)
Inventor: KOSKINIEMI MARK S
IPC: C08L27/06
Filed: 1995-08-16
Abstract: L'invention porte sur l'utilisation du pyroborate de calcium pour protéger les matériaux plastiques contre la prolifération microbienne ou les attaques et dégradations causées par les microbes. Le pyroborate de calcium peut être modifié de sorte que sa solubilité dans l'eau soit réduite et son efficacité microbicide prolongée.
Patent CA-2198096-A1 (CA)
Title: A self-excited oscillator type switch power supply with overcurrent protection
Inventor: WONG TAK TAI
IPC: H02M3/338
Filed: 1995-08-30
Abstract: A self-excitation type switch power supply unit with overcurrent protection. For adopting a simple and reliable current negative feedback protective circuit to coordinate with a complementary bridge circuit, a positive feedback circuit without DC biasing capacitive coupling, an oscillation-starting circuit of the AC power supply, etc., so that the self-excitation type switch power supply can become a practical power supply unit with simple circuitry, small size and low cost.
Patent CA-2198880-A1 (CA)
Title: Authenticating data storage articles
Inventor: LIANG LOUIS H
IPC: G06K19/14
Filed: 1995-08-29
Abstract: Accessory apparatus (30, 310, 410, 510, 930) for authenticating articles is used in conjunction with existing readers or scanners of articles (10) bearing stored date (110), such as credit cards or identification cards. The apparatus is used with existing readers (20) of such cards, to perform authentication functions without replacing or obsoleting such existing readers. The accessory apparatus is disposed before, after, on, under, inside, or adjacent to existing reader apparatus, to have a view of the article whose data is to be read. Information in addition to the stored data is coded on the article in non-visible indicia (120) detected by the accessory authenticating apparatus. This coded additional information may be related to identification data stored in the article's normal storage, such as a magnetic stripe or embedded memory chip. The additional information is coded in combinations of predetermined characteristics of light emitted by the article when the article is irradiated with non-visible light (1115) by the accessory. The coded combinations are preferably complex combinations of the various radiation characteristics. Irradiating radiation is modulated at a high frequency above 10,000Hz for rapid authentication, and for a decoding bar codes.
Patent CA-2199294-A1 (CA)
Inventor: PURWAR SHIVAJI
IPC: A61K9/00
Filed: 1996-06-05
Abstract: The invention is directed to an aqueous non-ototoxic, topical, otic pharmaceutical composition of matter for treating a mammal consisting essentially of: ciprofloxacin or a pharmaceutically acceptable salt thereof in aqueous solution in an amount effective for antibacterial action; hydrocortisone or a pharmaceutically acceptable salt thereof in an amount effective as an anti-inflammatory agent; polyvinyl alcohol at least about 85% hydrolyzed in an amount effective to suspend the hydrocortisone in solution; water sufficient to produce an aqueous composition; benzyl alcohol in an amount effective for antibacterial action; lecithin in an amount effective for enhancing suspension of other constituents in the composition; and polysorbate ranging from polysorbate 20 to 80 in an amount effective for spreading the preparation on a hydrophobic skin surface to the site of infection or inflammation.
Patent CA-2202921-A1 (CA)
Title: Smolting feed
Inventor: TREMBLAY GEORGE C
IPC: A23K1/18
Filed: 1997-04-16
Abstract: A fish feed composition comprising juvenile salmon feed to reduce mortality and/or improve growth in juvenile salmon upon transfer to seawater, which feed comprises an effective amount of L-carnitine in admixture with one or more conventional salmon feed components.
Patent CA-2205241-A1 (CA)
Title: Asymmetric coupling method
Inventor: MORGAN ISAAC E
IPC: H04B10/24
Filed: 1997-05-13
Abstract: Downstream and upstream signals in a transmission system are attenuated by different amounts to allow upstream signals to be originated at individual subscribers (22-22, 30-30) at the same level yet be received at a common upstream amplifier (19b) at substantially the same level. Different attenuation of downstream and upstream signals is achieved by the combination of a pair of directional couplers (110a and 110b) and a diplex filter (132). The couplers and diplex filter collectively separate a downstream signal destined for the subscriber from an upstream signal generated by the subscriber. The upstream signal which is separated may be attenuated by a matching loss element (138) to attenuate the upstream signal by an amount greater or less than the downstream signal.
Patent CA-2208465-A1 (CA)
Title: Tie down for wheelchairs
Inventor: MAGNUSON RICHARD A
IPC: A61G3/08
Filed: 1997-06-23
Abstract: Apparatus for securing one or more wheelchairs to a vehicle includes a plurality of straps for holding the wheelchairs to the vehicle. Some of the straps are attached to a movable element that can be moved into or out of the area to be occupied by the wheelchairs. This allows the area to be utilized by other passengers when no wheelchairs are present and also facilitates ingress and egress of the wheelchairs. In the preferred embodiment, movable elements carrying housings for securing belts and passenger restraint belts are mounted to the side wall of the vehicle and pivot about a vertical axis from storage positions to operative positions..
Patent CA-2208778-A1 (CA)
Title: A fireproof board for all purposes
Inventor: YU FENG CE
IPC: E04C2/02
Filed: 1997-06-25
Abstract: A board is disclosed as comprising magnesium oxide and magnesium chloride which collectively constitute between 20% and 60% of the total volume of the board, and at least one organic filler material constituting between 20% and 80% of the total volume of the board. The filler material comprises sawdust material, kiln dust and ashes.
Patent CA-2211062-A1 (CA)
Inventor: MAIA PEREIRA JORGE MANUEL
IPC: G01N23/223
Filed: 1997-08-04
Abstract: A technique to make the detection efficiency, in XRF systems, less dependent on the source-to-sample distance is disclosed. It is shown that this dependence can be made more constant within a large range of distances if a properly calculated annular mask is used. The calculations for this mask were made using the Monte Carlo method to compute the response curve of a full transmission elemental annulus with variable radius, and a linear programming Simplex method to optimize the uniformity of the response for a combination of those elemental annuluses. Experimental results (for Ca, Ti, V and Zr), in good agreement with the calculated ones, are presented and show that constant efficiency values within ~5% can be obtained when the sample distance varies from 3 to 12 mm. However, peak absolute efficiencies are then reduced by about a factor 5.
Patent CA-2211989-A1 (CA)
Title: Connector having improved noise-shielding structure
Inventor: NAGAFUJI TOSHIAKI
IPC: H01R13/658
Filed: 1997-07-30
Abstract: In a high-speed transmission connector having a male connector and a female connector adapted to connect with the male connector, the male connector is provided with a first outer conductor enveloping a contact pin.   The female connector is provided with a conductive socket member which is for being brought into contact with the contact pin with the contact pin inserted to the socket member when the female connector is connected to the male connector.  The female connector is further provided with a second outer conductor enveloping the socket member which is for being brought into contact with the first outer conductor with being inserted to the first outer conductor so that the first outer conductor are kept at an earth potential through the second outer conductor when the female connector is connected to the male connector.
Patent CA-2215198-A1 (CA)
Title: Assay devices
Inventor: WILES STEWART JOHN
IPC: B01L3/00
Filed: 1996-02-23
Abstract: Storage stability of an assay device, comprising an assay strip and sensitive reagents such as antibodies within a plastics casing, is maintained by moulding some or all of the casing from desiccant-containing plastics material, especially a blend of about 60-65 %  polystyrene and about 30 % silica dust. Ideally the desiccant-containing plastics material is used in the moulding of a removable cap for the device. The cap can be made by sandwich injection moulding, using the desiccant-containing polystyrene as a core, surrounded by conventional polystyrene.
Patent CA-2215449-A1 (CA)
Title: Antisense oligonucleotides for inhibiting helicobacter pylori activity
Inventor: COLOTE SOUDHIR
IPC: A61K38/00
Filed: 1996-03-18
Abstract: Antisense oligonucleotides that selectively hybridise with one or more genes necessary for Helicobacter pylori (H. pylori) activity, and particularly with the CagA cytotoxicity-associated immunodominant antigen, flagellin (flaA and flaB) or vacuolating cytotoxin (vacA), are disclosed. Pharmaceutical compositions containing said antisense oligonucleotides, and the use thereof for treating atrophic gastritis, peptic and duodenal ulcers, gastric atrophy or stomach cancer, are also disclosed.
Patent CA-2215501-A1 (CA)
Title: Cooling system for electronics
Inventor: M LHAMMAR AKE
IPC: H01L23/473
Filed: 1996-03-08
Abstract: The present invention relates to a cooling system, especially for electronic components, comprising a hermetically closed pipe conduit including evaporator and condenser and utilizing thermosiphon circulation of the refrigerant used in the pipe conduit, the evaporator being in heat conducting contact with a heat emitting component to be cooled and absorbs heat therefrom, the heat being transported through the pipe conduit by the refrigerant to the condenser and dissipated therein. According to the invention the pipe conduit (3) includes a plurality of evaporators (1a, 1b, 1c) in series, each being in heat conducting contact with a heat emitting component, and the condenser (2) is placed so that the liquid level of the condensed refrigerant is below the uppermost situated evaporator (1c) in the pipe conduit (3). This is rendered possible by the increased pumping action achieved by the evaporators (1a, 1b, 1c) connected together in series in the circulation direction after the evaporators partly evaporated refrigerant used in the pipe conduit (3).
Patent CA-2220454-A1 (CA)
Title: Telephone services
Inventor: CONNOLLY DAVID
IPC: H04M3/42
Filed: 1997-11-07
Abstract: A UIFN toll free service is provided and controlled by control units 11 and 12 that communicate with each other using a separate data network.  The control units arrange the connection of calls on a telephone network.  The calls are monitored and billing created for appropriate UIFN customers by the control units.  In one embodiment, each call is established by a TNO control unit, as if the customer had initiated the toll free call.  Such calls are then treated automatically, especially for billing, as normal IDD calls made by the TNO customer.
Patent CA-2222824-A1 (CA)
Inventor: SEITLE IGNAZ
IPC: F16D3/18
Filed: 1997-11-28
Abstract: A  trench  wall  cutter  is  provided  with  a  drive mechanism which  is  attached to  the  cutting  frame  in  a position which is spaced away from the bearing shield with a gear for driving at least one cutting wheel.  A drive shaft is disposed between the drive mechanism and the drive pinion of the gear in the bearing shield.  In order to reduce wear on the drive shaft bearing and gear wheel in the gear, an external spiral tooth system is formed on one end of the drive shaft which fits into a connecting sleeve with an internal tooth system.   In the internal tooth system, the drive shaft with its external spiral tooth system is held rotationally fixed with the capacity to be deflected around the axis of the drive shaft.  The connecting sleeve is also joined to drive mechanism or drive pinion of the gear.
Patent CA-2225401-A1 (CA)
Title: Modulation de la proliferation de cellules endotheliales
Inventor: LEDER PHILLIP
IPC: A61K38/00
Filed: 1996-06-21
Abstract: L'invention concerne des procédés de modulation de la prolifération des cellules endothéliales. Elle concerne également des procédés de détection de composés inhibant la fixation de IP-10 et de PF4 à un récepteur de HSPG.
Patent CA-2226174-A1 (CA)
Inventor: SETO ROBERT A
IPC: G01F1/24
Filed: 1996-03-13
Abstract: Débitmètre à réluctance magnétique pourvu d'un flotteur magnétique dans lequel un aimant permanent et des pièces polaires en fer doux sont disposés de façon à ce que le champ magnétique résultant passe directement à travers le collier, également constitué de fer doux. La forme du collier est telle qu'à mesure que le flotteur magnétique est progressivement déplacé de sa position neutre dans le collier, le champ magnétique sature progressivement des régions du collier, ce qui provoque l'émanation d'une partie dudit champ dans l'espace entourant le collier, endroits dans lesquels ledit champ émanant interagit avec les capteurs de champ magnétique de manière à modifier le signal électrique produit par un circuit de détection.
Patent CA-2227697-A1 (CA)
Title: Post for use in a plant trellis system
Inventor: MARTIN LAURANCE C III
IPC: A01G9/12
Filed: 1998-01-21
Abstract: A  plant  trellis  system,  which  includes  a plurality of grape stakes formed as elongated posts with a generally U-shaped cross-section defining depending flange portions.    In  order  to  prevent  damage  to  mechanical harvesters, as well as minimize injury, the flange portions are folded to form smooth surfaces.  A plurality of notches are formed in the folded-over flange portions for carrying the trellis wires at various heights.
Patent CA-2229196-A1 (CA)
Title: High stability weave
Inventor: LEE HENRY J
IPC: D21F7/08
Filed: 1998-02-10
Abstract: A double layer papermaking fabric having first and second  layers  of  cross  machine  direction  (CMD)  yarns interwoven with a system of machine direction (MD) yarns.          The MD repeat pattern is characterized by a portion that weaves exclusively with the first CMD layer, a portion that transitions  between  the  layers,  a  portion  that  weaves exclusively with the second CMD layer and a portion that transitions between the layers.
Patent CA-2229966-A1 (CA)
Title: Tasteless forms of basic drugs prepared by adsorption in situ
Inventor: MACKLES LEONARD
IPC: A61K47/02
Filed: 1998-02-18
Abstract: The present invention provides tasteless liquid compositions for the oral ingestion of pharmacologically active agents having basic moieties, which contain the basic pharmacologically active agent in the form of a salt of a pharmacologically acceptable organic acid, a silicate adsorbent and a sufficient amount of water to suspend the foregoing components. There are also provided methods of making these compositions