baber/WOPTO huggingface dataset:
Patent CA-2199645-A1 (CA)
Title: Methods for the manufacture of quinolone carboxylic acids derivatives and intermediates thereof
Inventor: EGLE IAN
IPC: C07D215/233
Filed: 1997-03-11
Abstract: Novel process for the preparation of quinolone carboxylic acid derivatives of general formula I, and intermediates thereof as illustrated in Scheme 1 wherein the key intermediate is a compound of formula IX.     (see fig. I)
Patent CA-2209749-A1 (CA)
Title: Liquid discharging head and liquid discharging device
Inventor: YOSHIHIRA AYA
IPC: B41J2/175
Filed: 1997-07-07
Abstract: A liquid discharging head comprising a discharge opening for discharging a liquid, a bubble generation region for generating a bubble by applying heat to the liquid by a heat generating member, and a movable member so positioned as to face the bubble generation region and arranged as displaceable between a first position and a second position more distant from the bubble generation region than the first position, the movable member being displaced from the first position to the second position by pressure based on generation of the bubble in the bubble generation region and the bubble being made to expand more downstream than upstream with respect to a direction toward the discharge opening by displacement of the movable member, thereby discharging the liquid, wherein in the heat generating member there exists a bubbling region involved in the generation of bubble, centers of widths of the heat generating member and an effective bubbling region with respect to a flow direction of the liquid are identical, and conditions of the bubble generation region are given as follows: the width of the effective bubbling region ~ the width of the bubble generation region ~ the width of the heat generating member.
Patent CA-2210019-A1 (CA)
Inventor: MLEJNEK DANIEL G
IPC: F16H57/032
Filed: 1997-07-09
Abstract: A gearbox (1) is formed by two steel plates (3,5) which support molded elements (such as 13b and combined 35e, 33e). A separate molding operation is performed on each plate, in which a plurality of individual molded parts are molded. The precise positioning is from the mold, not the plate. The liquid plastic is bound to the plate by entering a plurality of holes (such as 66 and 66a) for each part. The plates are then populated and then held together by screws (72a-72d). A bevel gear (31) is mounted on the outside by molded supports (29a, 29b) and by contact with gear (36) with which it meshes.
Patent CA-2210109-A1 (CA)
Inventor: LEVY JULIA
IPC: A61K41/00
Filed: 1996-01-12
Abstract: A method for reducing the rejection of allografts comprising donor tissue containing antigen presenting cells (APC's), which method comprises: a) contacting the donor tissue with a photosensitizing agent to obtain a modified donor tissue; b) exposing the modified donor tissue to light having a wavelength absorbed by the photosensitizing agent for a time sufficient to deplete the APC's in the donor tissue;  and c) transplanting the APC-depleted donor tissue into the tissue of a recipient. By subjecting donor tissue to photodynamic therapy, the mean survival time of grafts, particularly skin allografts, was significantly lengthened. The photosensitizer may also be part of a conjugate containing a target-specific moiety.
Patent CA-2210113-A1 (CA)
Inventor: GRALL MICHAEL J
IPC: H01P7/04
Filed: 1997-07-09
Abstract: A simple joining process for members of passive microwave structures is described which reduces passive intermodulation. The process forms an aperture (28) in a first member (22) and forms a second member (24) to have dimension which exceeds the aperture dimension by a dimension differential. The members are joined by initially causing them to have a temperature differential that is sufficient to permit the second member to be positioned across the aperture. The dimension differential is selected to generate mutually-induced radial stresses in the members, after the temperature differential is removed, which enhance the metal-to-metal contact between the members and, thereby, improve passive intermodulation (PIM) performance. Preferably, the dimension differential is selected to cause the second member to elastically buckle and exert a buckling stress against the first member. Additional interface structures are provided to resist operational axial forces, e.g., vibration, that tend to dislodge the members.
Patent CA-2210456-A1 (CA)
Title: Baby-bathing aid
Inventor: MICHELL ARABELLA CAROLINE
IPC: A41D13/04
Filed: 1996-01-17
Abstract: A safety baby-bathing aid comprises an apron (1) of largely standard design to which a towel (13) is detachably connected, preferably with the aid of VELCRO strips (11 and 15). Preferably both the apron (1) and the towel (13) are internally lined with a waterproof membrane. After bathing a baby, a wearer of the baby-bathing aid can pull the towel from the apron to dry the baby.
Patent CA-2210528-A1 (CA)
Title: Improved magnetohydrodynamic electric generator
Inventor: HAYES JAMES C
IPC: H02K44/08
Filed: 1996-02-07
Abstract: A magnetohydrodynamic electric generator is disclosed, which is so devised that the coherent light generated in it by electrical stimulation, heat induction and/or gas expansion is collected and focused towards the gas plasma moving between the magnets and the electricity-collecting plates. In this generator, the composition of the laser gas mixture is also controlled and adjusted to compensate for the unavoidable loss occurring in operation, when some of the gas molecules, especially CO2, are dissociated.
Patent CA-2211061-A1 (CA)
Inventor: MAYER FATIMA M
IPC: C09D11/00
Filed: 1997-07-21
Abstract: An ink composition comprised of a colorant and a vehicle component, and which vehicle component is comprised of the condensation product of an organic acid and an amino alcohol.
Patent CA-2211370-A1 (CA)
Title: A pipe coupling and a method for securing a pipe to a coupling piece
Inventor: VAN DER ZEE JAN
IPC: F16L21/08
Filed: 1996-02-19
Abstract: A pipe coupling for securing a pipe to a coupling piece, whereby the end of the pipe (1) extends into said coupling piece (2), said pipe coupling being provided with clamping (4), which on the one hand are shaped in such a manner as to engage a correspondingly shaped part of the coupling piece, and which on the other hand clampingly engage said pipe, and being provided with sealing means (3) between said pipe and said coupling piece.
Patent CA-2211708-A1 (CA)
Inventor: SCHULTE PETER S
IPC: E06B9/17
Filed: 1996-02-08
Abstract: An omni-directional breakaway guide assembly (10) for use in conjunction with a bottom member (50) in a roll-up door. The guide assembly (10) comprises a guide extension (40) for engaging vertical guide members (30) to guide the door in a vertical plane, and a bottom member portion (45) coupled to the bottom member (50). The breakaway guide assembly (10) includes a magnetic coupling (80, 85) between the guide extension (40) and the bottom member portion (45). Upon application of a sufficient force on the bottom member (50) the magnetic coupling (80, 85) is overcome and the bottom member (50) and attached bottom member portion (45) breakaway from the guide extension (40).  Such breakaway may occur for forces applied in a variety of directions to the bottom member (50).
Patent CA-2211762-A1 (CA)
Title: Improvement of reversible external sideview mirror
Inventor: RAVANINI OSWALDO LUIZ JUNIOR
IPC: B60R1/06
Filed: 1997-07-30
Abstract: A reversible external sideview mirror has a mirror element and a left/right reversing mechanism for alternatingly mounting the mirror on a left side and on a right side of the vehicle and including two joints, with an arm having a plurality of mirror stabilization grooves provided for a right side use and for a left side use, and formed by two segments a spring located in an angular joint a stepped swivel pin having a smaller diameter portion extending through the spring and a larger diameter portion which is pressed against the spring and an a elastic pin extending through a radial perforation provided in an end of the swivel pin and also in one of the mirror stabilization grooves for a right side use or in respect to one of the mirror stabilization grooves for a left side use, depending on whether the mirror is installed for use on the left side or the right side of the vehicle.
Patent CA-2211849-A1 (CA)
Title: Airtight simple tubular container
Inventor: TSAO CHIEN-HUA
IPC: A45D34/02
Filed: 1997-07-29
Abstract: The present invention is related to a airtight simple tubular container, the structure of which is mainly comprised of a tube body, a plug, and a packet: The tube is filled with liquid (such as: medical liquid, ointment, perfume, etc.). One end of said tube body is as an opening for the liquid to flow out and is sealed by a plug, which is sealed by a proper packet, while the other end is made as a breakable portion and a sealed hole. After the breakable portion has been broken or the sealed hole has been opened, hen the liquid will be forced to flow to the packet by the atmosphere pressure, capillarity phenomenon, and gravity for coating and using. By the aforementioned structure, the required liquid may be filled within said tube for using freely. Therefore, the airtight simple tubular container of the present invention is not only compact and easily portable, but also healthful and practical.
Patent CA-2213981-A1 (CA)
Inventor: STASI ALBERTO LUCA
IPC: C09B67/42
Filed: 1997-08-25
Abstract: Multilayer transparent, antireflex, coloured or opaline plates, with smooth or embossed surfaces, optionally thermouldable with external layers in acrylic polymers, low thickness, in the range of 1.5 up to lower thicknesses of 10 mm, by employing one or more polymeric continuous films which have the property to have elastic modulus lower than the one of PMMA of at least 30%,  and/or  elongation at break higher than at least 40%, measured by the test according to ISO 527 for plates or films, placed inside the panel.
Patent CA-2214247-A1 (CA)
Title: Modulators of amyloid aggregation
Inventor: CHIN JOSEPH
IPC: A61K39/02
Filed: 1996-03-14
Abstract: Compounds that modulate the aggregation of amyloidogenic proteins or peptides are disclosed. The modulators of the invention can promote amyloid aggregation or, more preferably, can inhibit natural amyloid aggregation. In a preferred embodiment, the compounds modulate the aggregation of natural .beta. amyloid peptides (.beta.-AP). In a preferred embodiment, the .beta. amyloid modulator compounds of the invention are comprised of an A.beta. aggregation core domain and a modifying group coupled thereto such that the compound alters the aggregation or inhibits the neurotoxicity of natural .beta. amyloid peptides when contacted with the peptides. Furthermore, the modulators are capable of altering natural .beta.-AP aggregation when the natural .beta.-APs are in a molar excess amount relative to the modulators. Pharmaceutical compositions comprising the compounds of the invention, and diagnostic and treatment methods for amyloidogenic diseases using the compounds of the invention, are also disclosed.
Patent CA-2214795-A1 (CA)
Title: Methods and compositions for enhanced formyltetrahydropteroylpolyglutamate in plants
Inventor: NISHIO JOHN N
IPC: C05G3/00
Filed: 1996-02-23
Abstract: Methods and compositions for enhancing plant growth provide for foliar application of a substance which enhances the accumulation of formyltetrahydropteroylpolyglutamate (C1-THF) in a treated plant. Treatment with substances that contribute to the structure of C1-THF increases the rate and quantity of carbon fixation by the plant. Thereafter, plant growth is further improved either by exposure of the plant to elevated oxygen, illumination and heat or by foliar input of single carbon fragment sources.  Optimal results are obtained by combined treatment with a substance that can serve as a sink for C1 fragments produced in the leaf.
Patent CA-2215401-A1 (CA)
Title: Blends of polycarbonate and linear ethylene polymers
Inventor: ELLEBRACHT STEVE R
IPC: C08L23/06
Filed: 1996-04-03
Abstract: A blend of polycarbonate and a homogeneously branched, linear ethylene polymer, which blend has a desirable balance of impact resistance and toughness properties.
Patent CA-2218602-A1 (CA)
Inventor: NOTHNAGLE MARIE-FRANCE
IPC: B29K23/00
Filed: 1996-03-13
Abstract: Feuille multicouche à orientation biaxiale et à thermorétrécissement uniaxial, présentant une couche centrale contenant du polypropylène et constituant au moins 70 % en poids dudit film multicouche, et au moins une couche pelliculaire contenant une polyoléfine adjacente à ladite couche centrale. On produit cette feuille en orientant de manière biaxiale un produit de co-extrusion et en orientant ensuite ce produit en l'étirant de 10 à 40 % dans le sens machine. La couche centrale contient du polypropylène isotactique et un modificateur qui réduit la cristallinité du polypropylène en augmentant les imperfections de chaîne ou en réduisant l'isotacticité de la couche centrale contenant du polypropylène. De tels modificateurs peuvent être choisis dans le groupe composé de polypropylène atactique, de polypropylène syndiotactique, d'un copolymère d'éthylène-propylène, d'un copolymère de propylène-butylène, d'un terpolymère d'éthylène-propylène-butylène et de polyéthylène linéaire de basse densité. La couche pelliculaire peut être choisie dans le groupe composé de polypropylène, d'un copolymère d'éthylène-propylène, de polyéthylène et d'un terpolymère d'éthylène-propylène-butylène.
Patent CA-2219402-A1 (CA)
Title: Protective adhesive article
Inventor: JANSSEN JEFFERY R
IPC: C09J7/38
Filed: 1996-04-19
Abstract: An adhesive article comprises a backing having opposed top and bottom surfaces and a layer of a pressure sensitive adhesive on the bottom surface. The pressure sensitive adhesive comprises selected poly-.alpha.-olefin polymers and a cold flow restricting agent. The adhesive articles are especially useful for protecting motor vehicles from damage during manufacture, transport and storage.
Patent CA-2220503-A1 (CA)
Inventor: ZALUSKI LESZEK
IPC: C01B3/00
Filed: 1997-11-07
Abstract: A hydrogen storage composition has a hydrogenated state and a dehydrogenated state; in the hydrogenated state the composition comprises a metallic hydride having a metallic component which reversibly forms the hydride and a metallic heat transfer medium in intimate contact with the hydride which transfers heat to the hydride for dehydrogenation; in use hydrogen is liberated from the composition with transfer of heat to the heat transfer medium, the hydrogenated state may be regenerated by exposing the composition in a dehydrogenated state to hydrogen gas. In this way a source of hydrogen gas is provided which source may be regenerated.
Patent CA-2227954-A1 (CA)
Title: A power supply for discharge lamps with balanced resonant circuit
Inventor: CANOVA ANTONIO
IPC: H05B41/282
Filed: 1998-01-26
Abstract: The circuit for the power supply of discharge lamps (l1, l2) comprises an inverter (1) and a load circuit with a resonant circuit (12) in series with electrodes (5, 5', 9', 9) of at least one lamp (l1, l2) to be inserted into the load circuit. In order to obtain a uniform brightness along the lamp the resonant circuit is balanced.
Patent CA-2231273-A1 (CA)
Title: Composition pharmaceutique pour l'administration d'un principe actif sur ou au travers d'une surface cutanee ou muqueuse
Inventor: NIELSEN LISE SYLVEST
IPC: A61K9/127
Filed: 1996-10-11
Abstract: La présente invention concerne des compositions pharmaceutique pour l'administration d'un principe actif sur ou au travers d'une surface cutanée ou muqueuse endommagée ou intacte, ou encore dans la cavité buccale, y compris les dents d'un mammifère tel que l'homme. Cette composition présente des propriétés avantageuses concernant la libération du principe actif par la composition, laquelle composition est en outre bioadhésive. La composition comprend le principe actif et une quantité suffisante d'un ester d'acide gras qui, associé à une phase liquide, est capable de générer une phase cristal-liquide renfermant les constituants de la composition. La solubilité du principe actif n'excède pas 20 mg/g à 20 ·C dans la phase cristal-liquide et 10 mg/ml à 20 ·C dans l'eau, l'eau étant, le cas échéant, tamponnée jusqu'à un pH sensiblement identique au pH typique de la phase cristal-liquide (pH d'environ 3,6 à 9). Cette composition convient particulièrement à l'administration de substances à très faible solubilité dans l'eau et qui doivent être apportées en quantité suffisante dans une région localisée pour une durée prolongée. Les principes actifs présentant un intérêt particulier sont les agents agissant contre le virus de l'herpès incluant des médicaments agissant contre le virus et certains de leurs promédicaments tels que les nucléosides, les analogues de nucléosides, les nucléosides phosphorylés (nucléotides), les analogues et sels de nucléotides, certains de leurs complexes et de leurs promédicaments, tels que par exemple les analogues de guanosine, les analogues de désoxyguanosine, la guanine, les analogues de guanine, les analogues de thymidine, les analogues d'uracil et les analogues d'adénine. Les agents agissant contre le virus de l'herpès, particulièrement intéressant, à utiliser seuls ou en association dans une composition conformément à la présente invention appartiennent au groupe formé par les acyclovir, famciclovir, déciclovir, penciclovir, zidovudine, ganciclovir, didanosine, zalcitabine, valaciclovir, sorivudine, lobucavir, brivudine, cidofovir, n-docosanol, ISIS-2922, et certains de leurs promédicaments et analogues.
Patent CA-2231609-A1 (CA)
Inventor: SAVARD DONALD D
IPC: F16L55/103
Filed: 1998-03-10
Abstract: An ice plug of the type having an annular chamber for clean process water to be frozen to temporarily plug a section of a pipeline is described, in which the supply of clean process water is drawn from a bottom layer of water filling the inspected or repaired pipeline. Also disclosed and claimed is an improved ice plug which carries a reservoir of clean process water which is injected into the annular space limited by a flexible seal disposed between the process water in the annular interspace and the inner wall of the pipeline. An improved method of freezing an ice plug is also disclosed and claimed. It utilized a modified pneumatic excavation tool avoiding the need for the usual jacket around the pipe for liquid nitrogen or the like freezing substance.
Patent CA-2231920-A1 (CA)
Inventor: MARBACH GERARD
IPC: E04H4/00
Filed: 1998-03-11
Abstract: Support systems for vessels such as above-ground swimming pools are disclosed.  Each system may include one or more buttresses adapted to support substantially the entire vertical height of the side wall or each of a series of side walls of the pool.  The buttresses, which flare along their lengths, closely match the support they provide each side wall to the outward water pressure present along its height for enhanced reliability.  The diminished space required for installation of the disclosed buttresses reduces the surface area required for their associated pool.
Patent CA-2233809-A1 (CA)
Inventor: HARBACH TERRY
IPC: C05F17/02
Filed: 1998-04-01
Abstract: A material aerating and mixing machine having a material elevator which elevates, mixes and aerates the material to be processed.  The material from the elevator is discharged onto a pair of conveyors, a cross conveyor that can be side shifted for windrow turning, and a discharge conveyor that is pivotally mounted for swingable movement in a horizontal plane into different positions, one position being in line with the cross conveyor for truck loading, another at an angle for stack turning, and a third position where the conveyor is folded for windrow turning or transport.  Each of the conveyors is independently powered depending upon the mode in which the machine is operated.
Patent CA-2234265-A1 (CA)
Title: Releasable grip facemask for helmet
Inventor: WHITE MICHAEL D
IPC: A42B3/20
Filed: 1996-10-17
Abstract: A facemask (10) for a helmet (5) which is of at least two parts (12, 14) and is split in the middle and resiliently mounted on the sides of the helmet. In accordance with the invention, the facemask will tend to open outwardly thereby increasing the likelihood that an opponent's grip on the facemask will be released. The facemask can be releasably mounted on the helmet so that, if the grip is not released, the portion of the facemask being grasped will then "break away" from the helmet. The force required to open up the two-part facemask is less than the force required to cause one or both parts of the facemask to be detached from the helmet. The present invention can be used with helmets for sports such as football, ice hockey, lacrosse, or other contact/collision sports.
Patent CA-2236437-A1 (CA)
Title: Ureteral stent with small bladder tail(s)
Inventor: WHITMORE WILLET F III
IPC: A61F2/94
Filed: 1996-11-06
Abstract: This invention is a ureteral stent (100) for assisting movement of urine along a patient's ureter and into the patient's bladder. The stent (100) includes an elongated tubular segment (130) extending toward the bladder from a kidney end region for placement in the renal cavity to a bladder end region. A central lumen (260) connects at least one opening (127) at the first end region to at least one opening in the bladder end region. At least one flexible tail (110) is attached to the bladder end region of the tubular segment (130) at a point outside the bladder so as to receive urine from the opening in the bladder end region of the tubular segment (130) and to transport urine from there across the ureter/bladder junction and into the bladder. The tail (110) includes an elongated external urine transport surface sized and configured to transport urine along the ureter. The urine transporting surface is sized and configured to extend along at least part of the ureter, across the ureter/bladder junction, and from there into the bladder.
Patent CA-2238472-A1 (CA)
Inventor: BURNETT DAVID STORER
IPC: G06F17/50
Filed: 1998-05-25
Abstract: An ellipsoidal infinite element is used for the modeling of electromagnetic fields in exterior domains surrounding a structure. This infinite element is based on a multipole expansion that describes scattered and/or radiated fields exterior to the structure. The electromagnetic field is represented in the exterior domain by a pair of scalar potentials, referred to as the Debye potentials.
Patent CA-2239831-A1 (CA)
Inventor: WORM STEVEN L
IPC: H01L31/167
Filed: 1997-11-13
Abstract: A linear operating mechanism for a slotted optical switch (10) which produces a guaranteed OFF-point for a consistent linear displacement of a switch operator (58) with respect to a reference surface (66) of the device enclosure (62). The guaranteed OFF-point is consistently repeatable from one device to another. The device enclosure (62) defines an integrally formed support for receiving an emitter (14) and a receiver (18) of the slotted optical switch (10). The enclosure (62) further defines a fixed OFF-plane (114) immediately adjacent the receiver (18) and precisely located with respect to a reference surface (66) on an outside surface of the enclosure (62).
Patent CA-2240152-A1 (CA)
Title: Dispositif d'oxygenation de l'eau
Inventor: KULLBERG STEN
IPC: B01F5/00
Filed: 1996-11-12
Abstract: La présente invention concerne un hydrocyclone pourvu d'un cyclone (1) dont l'extrémité étroite (2) est tournée vers le haut et dont l'extrémité plus large (3), comportant l'admission (4), est tournée vers le bas. L'admission (4) est disposée tangentiellement, une évacuation centrale (7) étant ménagée dans le fond du cyclone. Du côté de l'admission de cyclone (4), l'eau vient d'une pompe (5) entraînée, quand à elle, par un moteur. L'évacuation de fond partant du centre du cyclone aboutit dans un tuyau débitant la majeure partie de l'eau, l'air étant aspiré dans le cyclone par l'évacuation supérieure, et mélangé puis dispersé avec l'eau dans le cyclone de façon à réaliser une oxygénation efficace.