baber/WOPTO huggingface dataset:
Patent CA-2292189-A1 (CA)
Title: Radiopaque polymer blend
Inventor: ONWUMERE FIDELIS C
IPC: C08L75/04
Filed: 1999-12-06
Abstract: A medical implant such as a catheter, stent, vascular graft or other implant, comprised of a blend of two polymers.      In one embodiment, the first polymer includes a diisocyanate, a polyol, and a first chain extender having a bromine concentration greater than about 30 percent. The second polymer comprises a diisocyanate, a polyol, and a second chain extender having a bromine concentration less than about 10 percent.
Patent CA-2294941-A1 (CA)
Inventor: GEES THOMAS
IPC: B01L3/00
Filed: 1998-06-11
Abstract: The invention relates to a reaction vessel holder, comprising a fixed piece (1) and a plurality of couplings (4) fixed thereto. Reaction vessels (5) are fixed to these couplings (4). The couplings (4) and the fixed piece (1) have apertures through which a feed and/or withdrawal tool, in particular a needle, spoon or gripper, can be introduced into the reaction vessel (5). Part of each coupling (4) is flexible, so that the reaction vessels (5) fixed to the coupling (4) can be shaken by a shaking device (7) without moving the fixed piece (1).
Patent CA-2295624-A1 (CA)
Title: Method and device for indicating the price and designation of an article on stands for goods
Inventor: WOLF UDO
IPC: G06K19/06
Filed: 1998-07-11
Abstract: The invention concerns a method and a device for indicating prices, designation of an article or similar types of information on supports for goods in departmental stores or warehouses. The device is characterised by a graphic display system comprising bistable image cells requiring energy supply only when the image content is modified. The display of the article designation together with its price and other types of information simplifies the installation of the device by establishing a reference between the number of the article to be labelled, the electronic label identification number and an identification number for the site of the article on its support, whereto are added the designation and the price of the article stored in a control unit by means of a mobile data acquiring apparatus, the whole forming a data set for the article. The display device placed on the goods support has an image zone consisting of parallel display channels connected to non-visible overflow channels. At least two contrasting fluids are delivered into the display channels by micro-pumps operating alternately, on the basis of the image content to be produced, the required image quality being ensured by a phase-locking circuit wherein are integrated the micro-pumps and the sensors.
Patent CA-2296141-A1 (CA)
Inventor: RONDEAU CHRISTINE
IPC: C08L75/04
Filed: 2000-01-18
Abstract: L'invention a pour objet l'utilisation d'une association de deux colorants cationiques particuliers, à titre de colorants directs, dans des compositions destinées à la teinture directe des fibres kératiniques ne contenant pas de colorant autooxydable, en particulier des fibres kératiniques humaines telles que les cheveux, les compositions de teinture directe la contenant, les procédés de teinture directe correspondants et les dispositifs de teinture mettant en oeuvre lesdites compositions.
Patent CA-2296446-A1 (CA)
Inventor: BROOKHART MAURICE S
IPC: C07D213/53
Filed: 1998-07-10
Abstract: La présente invention concerne la production d'alpha-oléfines en grande quantité et haute sélectivité en mettant en contact l'éthylène et un complexe de fer d'une 2, 6-pyridinedicarboxaldéhyde bis-imine sélectionnée ou d'une 2, 6-diacylpyridine bis-imine sélectionnée, et dans certains cas, un composé activateur sélectionné tel qu'un composé alkyle aluminium. L'invention concerne également de nouveaux bis-imines ainsi que leurs complexes de fer. Les .alpha.-oléfines sont utiles comme monomères et comme produits chimiques intermédiaires.
Patent CA-2297837-A1 (CA)
Title: Surgical cable system and method
Inventor: WAGNER ERIK J
IPC: A61B17/88
Filed: 1998-07-07
Abstract: A surgical cable system and method for securing surgical cable around a portion of a human element (e.g., bone) is described. The surgical cable system may include a connector (200) and a tensioner (50). The connector may be adapted to hold a pin (204), positionable within the connector, such that the pin may secure the cable within the connector. The pin may be repositioned, after securing the cable, to allow the cable to move freely through the connector. The cable may be oriented within the connector such that the ends of the cable are perpendicular or parallel with respect to each other. The tensioner is preferably adapted to vary the tension of the cable. The cable may be passed through the connector, around a portion of a human bone, and back through the connector. The cable may be tensioned by use of the tensioner and secured into position within the connector. The connector may include a locking portion (206, 208, 210) for engaging a protrusion (211) formed on the pin. The engagement of the protrusion with the locking portion preferably inhibits rotation of the pin.
Patent CA-2297892-A1 (CA)
Title: Method and apparatus for the selective generation of individual photons or pairs of photons in an optical channel
Inventor: DULTZ WOLFGANG
IPC: H04L9/08
Filed: 1999-05-17
Abstract: Method for selective generation of individual photons or photon pairs in an optical channel (16, 17) with the following steps: - generation of a two-photons (photon pair); - spatial separation of the photon pair whilst retaining the quantum mechanical correlation in the event that the photons are emitted linearly; - injection of each photon into an optical channel (14, 14', 14"), one channel (15, 15', 15") incorporating an interferometer (7-13) with a variable optical path lengths difference .delta.1F-.delta.1S and the other channel incorporating an optical delay section (19) of optical lengths .delta.1; - spatial merging of both channels by means of a beam splitter (18, 31-36); - co-ordination of the values .delta.1F, .delta.1S, and .delta.1 such that the probability K for coincidences between the outputs (16, 17) of the beam splitter amounts selectively to K=0 or K=1 or to a predetermined intermediate value, K=0 corresponding to a photon pair in one of the outputs channels (16, 17) of the beam splitter, and K=1 corresponding to two individual photons in both outputs channels of the beam splitter.      Using the present invention, it is possible to realize an optical switch or gate for one or two photon states, as desired, which can be used in quantum cryptography and as a basic element for a quantum-optical computer.
Patent CA-2298051-A1 (CA)
Title: Detachably affixed counterweight and method of assembly
Inventor: DREIMAN NELIK I
IPC: F04B39/00
Filed: 2000-02-04
Abstract: A compressor or pump assembly including a housing, a compression mechanism disposed within the housing, a shaft operatively connecting the compression mechanism and a drive source, the shaft having an axis of rotation and first and second surfaces, the shaft axis of rotation disposed between the first and second shaft surfaces, and a counterweight disposed about the shaft and comprising first and second portions, the first counterweight portion generally U-shaped, having first and second arms, the first arm in contact with the first shaft surface, the second arm in contact with the second shaft surface, the second counterweight portion extending between the first and second arms and attached to the first counterweight portion, the shaft captured between the first and second counterweight portions, whereby rotation is imparted to the counterweight through the interface of the shaft surfaces and the arms.
Patent CA-2300188-A1 (CA)
Title: Grate construction of a fluidized bed boiler
Inventor: UTUNEN PEKKA
IPC: F23C10/20
Filed: 1998-09-14
Abstract: A grate construction of a fluidized bed boiler comprising a furnace wherein there is maintained a fluidized bed of solid particles; a windbox (14) in the lower part of the boiler under the furnace; a grate (12) having means (22) for distributing fluidizing air or like gas from the windbox into the furnace; and means (20) for removing bed material, coarse ash and like from the grate. The means for removing bed material from the grate comprise several substantially vertical pockets (20) extending from the grate into the windbox and opening into the furnace, and having, at the grate level, a horizontal cross section in the form of a longitudinal slit and having a downwards tapering vertical cross section parallel with the slits. The pockets divide the grate into sections (40 1, 40 2, 40 3, 40 4, 40 5).
Patent CA-2302624-A1 (CA)
Title: Crystallisation of sugars
Inventor: DONALDSON JOHN
IPC: C13B30/02
Filed: 1998-09-12
Abstract: A process for controlling the crystallisation of a sugar from a solution thereof, characterised in that the crystallisation is carried out under the influence of a magnetic field.
Patent CA-2303279-A1 (CA)
Inventor: YOUNIS SAED G
IPC: H03M3/02
Filed: 1998-09-08
Abstract: A bandpass .SIGMA..DELTA. ADC utilises either a single-loop (10) or a MASH architecture (12, 100, 121). Resonators are implemented as either a delay cell resonator (131), a lossless discrete integrator resonator (132), a ForwardEuler resonator (133), or a two-path interleaved resonator (134). The resonator can be synthesized with analog circuit techniques such as active-RC, gm-C, MOSFET-C, switched capacitor, or switched current. The switched capacitor or switched current circuits can be designed using single-sampling, double-sampling, or multi-sampling circuits. The non-stringent requirement of a .SIGMA..DELTA. ADC using switched capacitor circuits allows the ADC to be implemented in a CMOS process to minimize cost and reduce power consumption. Double-sampling circuits (101) provide improved matching and improved tolerance to sampling clock jitter. In particular, a bandpass MASH 4-4 .SIGMA..DELTA. ADC provides a simulated signal-to-noise ratio of 85dB at an oversampling ratio of 32 for a CDMA application. The bandpass .SIGMA..DELTA. ADC canalso be used in conjunction with undersampling to provide a frequency downconversion.
Patent CA-2306658-A1 (CA)
Inventor: THOLEN DIETMAR A M
IPC: C05F17/02
Filed: 2000-05-01
Abstract: In the biological treatment of organic matter for the purpose of producing compost, soil amendments or bio-fuel it is known that in order to ensure aerobic conditions during the entire treatment process air has to be channeled through the organics to provide for a sufficient oxygen level and to remove excess heat. It is also known that during the bio-chemical breakdown of the cell-structure of the organics moisture is released, which has to be removed to prevent parts of the organics turning into an un-aerobic process stage. The present invention provides a means to aerate organic matter and to collect and remove liquid from organic matter via a specifically designed channel. The channel contains a pipe comprising multiple orifices for air distribution or removal. The top of the channel is closed with a removable perforated cover. One or more than one channel combined to a series form an aeration system. The channels of an aeration system are integrated into the floor of a bin-type reactor and connected via pipes to a manifold outside the reactor for air distribution or removal. These pipes are also connected to the liquid collection and removal system comprised of a pipe outside the reactor, which directs collected liquid to storage or treatment tanks. Airflow in the channels, pipes and manifold is maintained by an air distribution system comprised of an exhauster/blower and regulated by means of dampers or valves. All process air is exhausted via a biologically active filter material in a bio-filter bed for odor control purposes. All liquid is collected and processed.
Patent CA-2309289-A1 (CA)
Title: Cutting tip and manufacturing method thereof
Inventor: ITO MASATOMI
IPC: B23B27/00
Filed: 2000-05-24
Abstract: A cutting tip having a three-layer laminated structure is provided. The tip is made from a disc-shaped three-layer laminate wherein a second layer consisting of a hard sintered compact of CBN or diamond is sandwiched by a first layer and a third layer consisting of a tool material such as cemented carbide. Prismatic blanks of rectangular cross-section are cut out by cutting the three-layer laminate in strips. Semi--completed tips of a desired shape are obtained by cutting up the prismatic blanks. Desired cutting edges are formed on the semi-completed tips to produce completed tips. Because prismatic blanks are obtained from a three-layer laminate and semi-completed tips are cut out from the prismatic blanks like this, the semi-completed tips can be obtained in large numbers, yield is high, and the manufacturing cost of the tip can be reduced.
Patent CA-2310797-A1 (CA)
Inventor: HASEGAWA OSAMU
IPC: B60K1/00
Filed: 2000-06-07
Abstract: An air inlet is provided at the bottom of a vehicle to open downwardly. The air inlet is connected by a first tube to an air cooler for a PDU and a down converter. A fan for inputting the flow of air and turning its direction 90 degrees is connected at the downstream of the air cooler.  The fan is further connected by a second tube to an exhaust outlet. The air inlet is located above a fuel tank thus to prevent any object jumping up from the road surface from straightforwardly entering the air inlet while the vehicle is running. The exhaust outlet is located above a silencer and can thus be prevented from being frozen in the winter.  Using the above arrangement, the present invention embodies an air-intaking and exhausting apparatus in an air cooling system for air cooling the PDU and the down converter at higher efficiency without the help of the air cooler mounted in the interior of the vehicle.
Patent CA-2311519-A1 (CA)
Inventor: DITTMANN KLAUS
IPC: H02G3/04
Filed: 1998-11-28
Abstract: The invention relates to a method for shaping the surface of extruded profiles made of thermoplastic materials with a device which is profiled to the shaping surface such that it is complimentary to the demanded shaping dimensions and presses into the continuous profile. The invention provides a method and device with whose simple, economic and high uniformity permit a material-saving production of profiles while completely adhering to the required stability at the same time.  To this end, the shaping device presses the desired shaping dimensions into the continuous profile such that the wall strength of the surrounding edges of the impressions is reduced and work-hardened. The profiles are cooled and shaped into a dimensionally stable state in such a way that the height of the impressions at least correspond to the halved wall strengths of the continuous profile.
Patent CA-2315024-A1 (CA)
Title: Apparatus and method for injecting treatment fluids into an underground formation
Inventor: BOSSAERTS JAN DIRK
IPC: E21B33/13
Filed: 1998-12-23
Abstract: A tool and method are disclosed for injecting various treatment fluids into a formation surrounding an underground borehole. The tool (1) comprises at least three axially spaced swab assemblies (7, 8, 9) which define at least two annular spaces (10, 11) between the tool body (5) and the wellbore (12). In use the tool (1) is moved through the wellbore (12) whilst a first treatment fluid (18) such as a sand consolidation agent or production stimulation chemical is pumped via a first annular space (10) into the formation (16) and a second treatment fluid (19), such as an overflush fluid, is pumped via a second annular space (11) into the formation (16). The tool (1) allows accurate and continuous injection of various treatment fluids over long intervals into the formation (16) without requiring cycling to new fluids.
Patent CA-2316865-A1 (CA)
Title: Textured tampon string
Inventor: JACKSON DANE R
IPC: A61L15/42
Filed: 1998-12-30
Abstract: A tampon including a pledget with a textured tampon string. The string is one or more of the following constructions: crocheted, cabled, braided or a combination of two or more thereof. The textured tampon string may have a siloxane solution applied thereto or included therein.
Patent CA-2318525-A1 (CA)
Inventor: KWON BYOUNG
IPC: C07K19/00
Filed: 1999-01-14
Abstract: Disclosed herein are methods of using the H4-1BB protein, ligands to this protein, and various mAbs either directed against H4-1BB or other molecules that can be used therapeutically. The nature and importance of the H4-1BB  molecule provides the ligands and related co-stimulatory molecules the ability to enhance or suppress T cell activation and proliferation. By treating T  cells that have expressed receptor protein H4-1BB with one of the four anti-H4-1BB monoclonal antibodies disclosed herein, activation or inhibition of the immune response is seen. Also disclosed herein is cDNA for the human receptor H4-1BB. The cDNA of the human receptor H4-1BB is about 65 % homologous to the mouse cDNA 4-1BB and was isolated by using probes derived from murine cDNA 4-1BB. A fusion protein for detecting cell membrane ligands to human receptor protein H4-1BB was developed. It comprises the extracellular portion of the receptor protein H4-1BB and a detection protein, alkaline phosphatase, bound to the portion of the receptor protein H4-1BB. B cells that have expressed a ligand to receptor protein H4-1BB can be treated with cells that have expressed receptor protein H4-1BB and B cell proliferation may be induced. The use of H4-1BB to block H4-1BB ligand binding has practical application in the suppression of the immune system during organ transplantation or against autoimmune diseases including diabetes, rheumatoid arthritis, and lupus. Other applications of this technology include the development of therapeutic methods for the treatment of HIV-1 infected individuals, and the treatment of cancerous tumors.
Patent CA-2318665-A1 (CA)
Title: Method of treating onychomycosis
Inventor: GLASSMAN DANIEL
IPC: A61K9/08
Filed: 2000-09-12
Abstract: A method of treating onychomycosis is described which includes administration to an infected area around a nail of a patient a tissue softening composition containing urea and an antifungal composition in one or separate compositions, concurrently or non-concurrently. Also described is a kit which contains the unit dosage forms, a protective gel and appropriate dressings for ready application.
Patent CA-2319537-A1 (CA)
Inventor: BARKER KEITH
IPC: B32B27/34
Filed: 1999-02-02
Abstract: Oxygen-scavenging polymers and packaging for holding oxygen-sensitive products. A heat treatment process has been found to significantly increase the oxygen-scavenging performance of the polymer. The enhanced scavenging polymer can be effectively incorporated into various packaging, including transparent multilayer containers for beer and juice. In one embodiment, a multilayer package made from the scavenger provides an actual reduction in oxygen content of a contents of the package, over a long period of time (e.g., 24 weeks). The package can be stored unfilled for an extended period (without significant loss of scavenging capability) and will scavenge substantially immediately upon filling with a liquid product. The package may incorporate a relatively low weight percentage of the scavenger, thus providing enhanced scavenging in a cost-effective manner.
Patent CA-2320444-A1 (CA)
Title: Appareil de controle du revetement d'une boite metallique
Inventor: PHILLIPS ROGER
IPC: G01N27/24
Filed: 1999-02-03
Abstract: Selon l'invention, on mesure l'intégrité et la qualité du revêtement intérieur d'un contenant, tel qu'une boîte métallique (7), en fixant une borne électrique sur la boîte métallique, en insérant une électrode (15) dans cette boîte, en appliquant un signal électrique, soit sur la borne électrique, soit sur l'électrode, et en mesurant le courant circulant entre la borne et l'électrode au moment où l'on ajoute un électrolyte à la boîte métallique. En mesurant le signal électrique au moment où l'on fait varier le niveau de l'électrolyte, on obtient une indication de la qualité et de l'intégrité du revêtement au niveau de divers endroits de la boîte métallique.
Patent CA-2320976-A1 (CA)
Title: Disposable portable electronic devices and method of making
Inventor: VOLPE LEE S
IPC: H05K1/16
Filed: 1998-06-18
Abstract: A disposable portable electronic device has a body (22) of prescribed length and thickness and constructed of elongated, ribbon-like substrate (64) of dielectric material. The substrate has a contiuous length much greater than the length of the body and a thickness much less than the thickness of the body. Conductors and components are formed on the substrate. The dielectrical material of the substrate is folded upon itself into short lengths juxtaposed on one another within the thickness of the body, and the juxtaposed lengths of the substrate are secured together to establish a self-sustaining structure which forms the body of the device.
Patent CA-2324519-A1 (CA)
Inventor: POMPIER JEAN-PIERRE
IPC: B60B21/10
Filed: 2000-10-31
Abstract: The wheel rim comprises first (2) and second (3) seatings and a bearing surface (5) for an annular tire support ring. The cylindrical bearing surface is located between the internal axial ends of the two seatings and has a minimum development Dp equal to the development of all the rim part between the end and the rim edge corresponding to the rim seat axially closest to the end. The bearing surface has a clamping surface (9) which is regularly distributed circumferentially and has a maximum external development Ds greater than Dp.
Patent CA-2324989-A1 (CA)
Title: Fuel treatment devices
Inventor: RENARD REGIS E
IPC: F02M27/02
Filed: 2000-11-01
Abstract: A fuel treatment device, comprises a housing defining a fuel flow passage, t he housing having a fuel inlet and a fuel outlet which communicate with the fuel flow passage, and the fuel inlet and the fuel outlet each having a fuel line connector, and a catalyst located in the fuel flow passage, the catalyst comprising a bismuth alloy. The catalyst comprises an elongate element of cruciform cross-section extending longitudinally of the fuel flow passage and the elongate element comprises a pair of elongate components formed with  a slot extending longitudinally thereof to allow longitudinal interengagement of th e elongate components.
Patent CA-2327944-A1 (CA)
Title: Process for preparing 1,4-dihydropyridine compounds
Inventor: SATAKE KUNIO
IPC: B01J31/26
Filed: 2000-12-08
Abstract: A process for preparing a 1,4-dihydropyridine compound comprising contacting an enamine compound (see formula I) and a compound having a structure of (see formula II) in the presence of a base; and treating the reaction mixture thus obtained in the presence of an acid or a combination of acids under mild reaction conditions.  A resulting 1,4-dihydropyridine compound is useful as an anti-inflammatory agent or the like.
Patent CA-2330320-A1 (CA)
Title: Contaminant adsorption and oxidation via the fenton reaction
Inventor: HULING SCOTT G
IPC: C02F1/28
Filed: 1999-05-13
Abstract: Contaminated water is treated by adsorbing contaminant onto a sorbent to concentrate the contaminant and then oxidizing the contaminant via the Fenton and related reactions. Iron is attached to the sorbent or can be added in solution with an oxidant. Both systems, iron attached to the sorbent or iron in solution, can be used to oxidize contaminants on or near the surface of the sorbent. The process can be used to treat contaminated water in above-ground and below-ground treatment systems.