baber/WOPTO huggingface dataset:
Patent CA-2235460-A1 (CA)
Title: Dielectric filter, transmitting/receiving duplexer, and communication apparatus
Inventor: MIKAMI SHIGEYUKI
IPC: H01P7/10
Filed: 1998-04-21
Abstract: In a dielectric filter in which electrodes are formed on both principal planes of a dielectric plate while pairs of electrode non-formed portions having substantially the same shape are defined in the electrodes in opposing relation, areas positioned between the pairs of opposing electrode non-formed portions serve as resonance areas, coupling members are provided to be coupled with the resonance areas, and a cavity is provided to define a space surrounding the resonance areas and the coupling members, a signal is prevented from propagating in the parallel plate mode through a waveguide path formed between electrodes formed on both principal planes of the base plate serving as part of a cavity.  Electrodes are formed on both principal planes of a dielectric plate (3) with pairs of electrode non-formed portions (4a, 4b, 4c, etc.) defined in the electrodes in opposing relation so that areas positioned between the electrode non-formed portions serve as resonance areas.  Microstrip lines (9, 10) are provided on an upper surface of a base plate (6), and an electrode (11) is formed in spaced relation from the microstrip lines (9, 10) by a predetermined distance.  Through holes (13) for making electrical conduction between the electrodes formed on both principal planes of the base plate (6) are bored in the base plate in array.
Patent CA-2238085-A1 (CA)
Inventor: BEN ZVI GUY
IPC: B29C48/07
Filed: 1996-11-24
Abstract: L'invention porte sur un produit en plastique extrudé fait de polyuréthanne thermoplastique rigide.
Patent CA-2239986-A1 (CA)
Title: Commutateur haute tension a commande optique pour defibrillateur implantable
Inventor: COX TIMOTHY J
IPC: A61N1/39
Filed: 1996-12-18
Abstract: L'invention se rapporte à un défibrillateur implantable pourvu d'un commutateur haute tension à commande optique. Un commutateur à semi-conducteurs à tolérance aux hautes tensions et à trois bornes (88) présente une haute conductivité entre sa borne haute tension (HV) et sa borne commune (COM) en réponse à une basse tension de commande appliquée entre sa borne de commande (CRT) et sa borne commune (COM), la basse tension de commande dépassant une valeur de seuil caractéristique, et présente une faible conductivité entre ces mêmes bornes, la tension de commande étant inférieure à la valeur de seuil caractéristique. Un coupleur/isolateur photovoltaïque (82) comportant un dispositif à émission de lumière (90) et un dispositif photovoltaïque (92), couplés optiquement et isolés électriquement l'un de l'autre, communique par circuits par l'intermédiaire de la borne de commande et de la borne commune. Une source de courant basse tension (80) commande le dispositif d'émission de lumière (90) du coupleur/isolateur photovoltaïque (82). Un opto-isolateur de mise hors tension (84) comportant un dispositif d'émission de lumière (94) et un dispositif conducteur sensible à la lumière (96), couplés optiquement et isolés électriquement l'un de l'autre, communique par circuits par l'intermédiaire de la borne de commande et la borne commune du commutateur à semi-conducteurs (88). Une source de courant basse tension d'arrêt (86) commandant le dispositif émetteur de lumière (94) de l'opto-isolateur de mise hors tension comportant un dispositif conducteur sensible à la lumière, couplés optiquement et isolés électriquement l'un de l'autre, est en communication par circuits en série entre le dispositif photovoltaïque et le commutateur à semi-conducteurs. Une source de courant basse tension de marche commande le dispositif émetteur de lumière de l'opto-isolateur de mise sous tension.
Patent CA-2240620-A1 (CA)
Title: Wellbore cable protector
Inventor: KELLER MARVIN A
IPC: E21B17/10
Filed: 1998-06-15
Abstract: A cable protector for use within a wellbore comprises at least one housing member adapted to be placed against a wellbore device, such as an electric submergible pumping system. The housing member has at least one and preferably two longitudinal protrusions extending therefrom, which are adapted to receive an electric power cable adjacent to or between the protrusions. One or more bands or straps extend around the housing member to attach the cable protector to the wellbore device and to retain the cable between and inwardly of the protrusions.
Patent CA-2242289-A1 (CA)
Title: Improvements relating to fastening devices
Inventor: TOOK IAN FRANK
IPC: E06C7/08
Filed: 1996-11-28
Abstract: The invention provides that a fastening device comprises a block (22) of plastics material of square cross section. It has a threaded bore (40) for the receipt of a bolt (20) which completes the fastening, and additionally, the block (22) has a through slot (26) extending from one end making the block (22) of U-shape so that it has legs (28, 30) and a base (32). This configuration is such that the legs (28, 30) can be sprung together so that they can be pushed into the end of a square sectioned cable ladder tube (12) to be connected at right angles to a cable ladder rail (10), whereupon they will spring apart so that projection on the legs engage in apertures in the tube walls and the block cannot be retracted. To secure the rail (10) to the tube end, the bolt is passed through a hole in the rail (10) and is screwed into the block, which is locked in the tube end. The advantages are pre-insertion of the blocks in the factory and simple assembly of the cable ladder on site, and secure connection joining of the rail (10) and tube ends (12).
Patent CA-2242494-A1 (CA)
Title: Novel n-substituted 4-((4'-aminobenzoyl)-oxymethyl)-piperidines having gastric prokinetic properties
Inventor: SCHUURKES JOANNES ADRIANUS JAC
IPC: C07D211/34
Filed: 1997-02-07
Abstract: This invention concerns the compounds of formula (I) the N-oxide forms, the pharmaceutically acceptable acid addition salts and the stereochemically isomeric forms thereof, wherein R1 is C1-6alkyloxy, C2-6alkenyloxy or C2-6alkynyloxy; R2 is hydrogen or C1-6alkyloxy, or when taken together R1 and R2 may form a bivalent radical of formula wherein in said bivalent radicals one or two hydrogen atoms may be substituted with C1-6alkyl, R3 is hydrogen or halo; L is C3-6cycloalkyl, C5-6cycloalkanone, C2-6alkenyl optionally substituted with aryl, or L is a radical of formula -Alk-R4, -Alk-NR5R6, 1-R6-4-piperidinyl, Alk-X-R7, -Alk-Y-C(=O)-R9 or -Alk-Y-C(=O)-NR11R12, wherein each Alk is C1-12alkanediyl; R4 is hydrogen, C1-6alkylsulfonylamino, C3-6cycloalkyl, C3-6cycloalkanone, Ar-, di(Ar)methyl, Ar-oxy- or Het1; R5 is hydrogen or C1-6alkyl; R6 is Het2; R7 is hydrogen, C1-6alkyl, hydroxyC1-6alkyl, C3-6cycloalkyl or Ar or Het2; X  is O, S, SO2 or NR8; said R8 being hydrogen, C1-6alkyl or Ar; R9 is hydrogen, C1-6alkyl, C3-6cycloalkyl, Ar, ArC1-6alkyl, di(Ar)methyl, C1-6alkyloxy or hydroxy; Y is NR10 or a direct bond; said R10 being hydrogen, C1-6alkyl or Ar; R11 and R12 each independently are hydrogen, C1-6alkyl, C3-6cycloalkyl, Ar or ArC1-6alkyl, or R11 and R12 combined with the nitrogen atom bearing R11 and R12 may form a pyrrolidinyl or piperidinyl ring both being optionally substituted with C1-6alkyl, amino or mono or di(C1-6alkyl)amino, or said R11 and R12 combined with the nitrogen bearing R11 and R12 may form a piperazinyl or 4-morpholinyl radical both being optionally substituted with C1-6alkyl. Processes for preparing said products, formulations comprising said products and their use as a medicine are disclosed, in particular for treating conditions which are related to impairment of gastric emptying.
Patent CA-2244419-A1 (CA)
Inventor: HOLZNER CHRISTOPH
IPC: C07F5/02
Filed: 1998-07-30
Abstract: The present invention relates to water-soluble substituted pyridine-boranes of the formula MX-C5H4N~BH3, wherein M and X have the meanings given in the description, a process for their preparation and their use for reducing organic compounds and for precipitating noble metals from aqueous solutions of noble metal salts.
Patent CA-2248198-A1 (CA)
Title: Use of n-aryl-2-hydroxyalkylamides for stimulating or inducing hair growth and/or arresting hair loss
Inventor: GALEY JEAN-BAPTISTE
IPC: A61K8/42
Filed: 1997-03-05
Abstract: Methods and compositions for induction or stimulation of hair growth and retardation of hair loss are provided. Preferably, these compounds will include a perhalogenated alkyl radical having 1 to 4 carbon atoms.
Patent CA-2248403-A1 (CA)
Inventor: KOERBER ALFRED
IPC: A61K8/49
Filed: 1998-09-22
Abstract: Mixtures of ethylene dodecanedioate and ethylene undecanedioate which, because of their particular musk odour note, are products which can replace macrocyclic aromatic musk fragrances in inter alia perfume compositions.
Patent CA-2248574-A1 (CA)
Inventor: LUCE JOHN W
IPC: H02J3/34
Filed: 1997-03-10
Abstract: An arrangement for transferring electric power from one polyphase circuit to another without introducing harmonic distortions comprises a torque motor (14) and a rotating electric machine (12) having two sets of windings (18, 26).  Each of the windings is connected to a respective one of the polyphase electric circuits. The two windings have the same number of magnetic poles and generate coincident rotating magnetic fields having the same direction of rotation. When torque is applied (e.g. to the shaft of a rotor carrying one of the windings) in the same direction as that of the rotating magnetic fields, electric power is transferred from the rotor-connected circuit to the stator-connected circuit. The invention provides apparatus (10) and method for controlling the frequency at which power is supplied to a polyphase load, or to manage instabilities in weak links between generating stations.
Patent CA-2250276-A1 (CA)
Title: Polymerization inhibitor composition
Inventor: DEMASSA JOHN MATTHEW
IPC: C07C7/20
Filed: 1997-03-03
Abstract: A polymerization inhibitor composition for inhibiting the polymerization of aromatic vinyl monomers at elevated temperatures comprising: (a) a benzofuroran derivative of formula (I) wherein R is C1-C4 alkyl or alkoxy; R1 is a nitro group; and m and n are each independently 0, 1, or 2; and (b) a solvent selected from the group consisting of toluene, xylene, ethylbenzene, vinyltoluene, divinylbenzene, alpha-methylstyrene, and a hydrocarbon. A method for inhibiting the polymerization of aromatic vinyl monomers at elevated temperatures using this composition, is also described.
Patent CA-2250349-A1 (CA)
Inventor: POLYKANDRIOTIS ANTHONY
IPC: B65D41/34
Filed: 1997-03-26
Abstract: A closure (10) that can be used to seal containers for various vehicle oils is described. The closure (10) has a main portion adapted to seal with the neck of the container and a cap (30) adapted to seal a tube (22) extending through an aperture in the top (11) of the main closure. The cap (30) is connected to the top portion (11) of the main closure through a number of frangible bridges (34) such that any removal of the cap (30) from the main portion of the closure can be readily determined by a potential purchaser or user of the contents of the container (15).
Patent CA-2254172-A1 (CA)
Title: Remote payment system for gasoline service stations
Inventor: ROBERTS ALAN B
IPC: G07G1/14
Filed: 1998-11-20
Abstract: A system for accommodating convenient and efficient payment at full service, gas service stations is disclosed.      The system recognizes the existing computerization at service stations and provides modifications at the pumps which coordinate with portable hand held transceivers.      These portable hand held transceivers include security circuitry to encode signals to the transceivers provided at the pumps and results in a secure system where confidential information, such as a PIN number can be entered. This system uses the existing system between the pumps and in store processors such that modifications to the in store processor are reduced such that retrofit of existing systems is more cost effective.
Patent CA-2255087-A1 (CA)
Title: An endless belt for use with heavy duty track vehicles
Inventor: LUSSIER ALAIN
IPC: B62D55/24
Filed: 1998-11-30
Abstract: An endless belt for use with a heavy duty track vehicle comprises a body made of polymeric material wherein a series of longitudinally spaced guide members are integrally formed to the inner surface thereof while two rows of longitudinally spaced tread members are integrally formed to the outer surface thereof. Each tread member in each row has an outer edge area adjacent the outer edge of the body and an inner edge area terminating substantially at mid-section of the body. Each tread member of the first row is longitudinally offset relative to an adjacent tread member of the second row. Each inner edge area of the tread members is in vertical alignment with a corresponding one of the guide members of the inner surface of the body. This particular geometry of tread members and drive members is such as to reduce slitting damages to the track when driven.
Patent CA-2255819-A1 (CA)
Inventor: TAKASE MASAKI
IPC: F21V7/16
Filed: 1998-12-07
Abstract: A headlamp includes an aiming adjustment device having an adjusting element which permit aiming adjustment, and an adjustment prevention mechanism by which it is impossible for unauthorized workers to operate the aiming adjustment device. The adjustment prevention mechanism includes a fixing member provided to a part of the headlamp,  and a moving member which is movable to an adjustment position and a shipping position relative to the fixing member and covers the adjusting member. The fixing member includes a tool guide, a moving member guide and a stopper. The moving member has a tool insertion hole which permits a tool to reach the adjusting element in accordance with the tool guide in the fixing member when the moving member is in the adjustment position, and prevents the tool from reaching the adjusting element when the moving member is in the shipping position. This adjustment prevention mechanism is attachable to the headlamp prior to mount the headlamp on an automobile.
Patent CA-2256950-A1 (CA)
Title: Framing studs for the construction of building structures
Inventor: LAFRANCE CLAUDEX
IPC: E04C3/14
Filed: 1998-12-23
Abstract: A composite wood stud for the construction of building structures is comprised of an elongated straight main member and a transverse elongated web piece connected thereto. Both the main member and the web piece are of rectangular cross-section with the web piece being secured along a narrow flat end face of the main member. The web piece is dimensioned and disposed to extend beyond the opposed flat side faces of the main member to define opposed wing sections. The web piece also has a width which is narrower than the width of the main member and it provides an arresting force against longitudinal distortion of the straight elongated main member and improves the load bearing capacity thereof.
Patent CA-2258943-A1 (CA)
Inventor: HOELTER HEINZ
IPC: F23G7/06
Filed: 1999-01-14
Abstract: The invention concerns a process for treating waste gases which contain organic pollutant compounds and are produced in waste-incinceration plants. Without being pre-treated, the waste gases are mixed with hot flue gases from the fossil fuel-burning furnaces of industrial boiler plants and so heated to above 1200°C.
Patent CA-2259463-A1 (CA)
Inventor: LEADLAY PETER FRANCIS
IPC: C07H17/08
Filed: 1997-07-04
Abstract: Un gène de polykétide synthase hybride du type I contenant généralement un module de démarrage et plusieurs modules d'extension hétérologue est utilisé pour synthétiser de nouveaux polykétides, de préférence sous le contrôle d'un promoteur de polykétide synthase du type II, par exemple <u>act</u> I de S. coelicolor.
Patent CA-2259503-A1 (CA)
Title: Procede ameliore pour electrophorese capillaire des acides nucleiques, des proteines et des composes a bas poids moleculaire
Inventor: ARVIDSSON LARS-ERIK
IPC: G01N27/447
Filed: 1997-07-01
Abstract: L'invention concerne un procédé d'électrophorèse capillaire à tube capillaire en matière plastique hydrophobe caractérisé en ce que la surface intérieure a un revêtement à base de polymère hydrophile qui renferme des groupes présentant un polymère polyhydroxy selon la structure - B - R. Dans cette structure, R est un groupe hydrocarbyle et B est un pont de liaison avec le polymère polyhydroxy, de préférence par substitution d'hydrogène dans un groupe hydroxy du polymère polyhydroxy.
Patent CA-2264531-A1 (CA)
Inventor: DAMONTE TOMASO
IPC: A23G3/34
Filed: 1997-09-04
Abstract: Ce procédé de production de produits sucrés aromatisés, notamment au moyen d'un édulcorant, d'un alcool de sucre cristallin ou d'un mélange d'alcools de sucre et éventuellement d'autres édulcorants, est caractérisé en ce que l'on incorpore préalablement l'agent aromatisant dans le constituant d'alcool de sucre utilisé dans le produit sucré, et en ce que cette incorporation comprend les étapes consistant: a) à chauffer l'alcool de sucre cristallin à une température supérieure au point de fusion de celui-ci, jusqu'à ce qu'il soit à l'état fondu, b) à refroidir ce produit fondu à une température inférieure au point de fusion, jusqu'à ce que ce produit prenne un état vitreux métastable, c) à ajouter au produit fondu et à l'état vitreux, tout en le malaxant, une quantité d'alcool de sucre sous forme cristalline, représentant 5 à 120 % en poids du poids de la masse fondue, ainsi qu'une quantité d'agent aromatisant suffisante pour donner un arôme à la masse tout entière, puis d) à enlever la chaleur, dans des conditions de mélange de toute la masse, de façon à provoquer la cristallisation de celle-ci.
Patent CA-2265593-A1 (CA)
Title: A cable bolt
Inventor: HUTCHINS WARWICK BERNARD
IPC: E21D20/02
Filed: 1997-09-09
Abstract: A cable bolt (10) for use in mining excavations comprising a plurality of generally closely spaced wires or strands (11) which have a first end for fitting into a bore hole (21) formed in an excavation and a second end which is terminated within a cylindrical sleeve (17). The sleeve (17) has a threaded external surface for receiving a lock nut (18) which is tightened against a bearing plate (19) so as to tension the cable bolt (10). The wires or strands (11) are separated outwardly from a central longitudinal axis of the cable bolt (10) at spaced locations along the length of the cable bolt to form a "bird cage" (13) at each location. Spacers (14) are provided at each location to cause the outward separation of the wires or strands (11).  A central tubular member (12) extends along the axis through the sleeve (17) and each spacer (14).
Patent CA-2267286-A1 (CA)
Title: Compositions detergentes contenant une mycodextranase
Inventor: OHTANI RYOHEI
IPC: C11D3/00
Filed: 1996-09-27
Abstract: La présente invention se rapporte à des compositions détergentes contenant une mycodextranase. Ces compositions améliorent le détachage de zones spécifiques ou de zones étendues et elles assurent de meilleurs résultats globaux de nettoyage ainsi qu'une meilleure désinfection des surfaces traitées.
Patent CA-2269095-A1 (CA)
Inventor: HUTCHINGS MARTIN CLIVE
IPC: A61P19/02
Filed: 1997-10-27
Abstract: L'invention concerne des composés représentés par la formule générale (1), dans laquelle Ar est un groupe aromatique facultativement substitué; R<2> est un atome d'hydrogène ou d'halogène ou un groupe -X<1>-R<2a> dans lequel X<1> est une liaison directe ou un atome ou un groupe lieurs et R<2a> est un groupe alkyle, alcényle ou alkynyle à chaîne droite ou ramifiée facultativement substitué; R<3> est un groupe hétérocycloalkyle facultativement substitué, l'invention concernant également les sels, les solvates, les hydrates et les N-oxydes desdits composés. Lesdits composés sont des inhibiteurs sélectifs de tyrosine-kinase, en particuliers des kinases ZAP-70 et syk, et sont utilisés dans le traitement préventif et curatif de maladies immunitaires ou allergiques et de maladies entraînant une mauvaise activation plaquettaire.
Patent CA-2271165-A1 (CA)
Inventor: ZYSMAN MILTON
IPC: A47C31/08
Filed: 1999-05-06
Abstract: A handle is applied to a mattress border by preparing a length of handle strapping having opposite longitudinal ends and aligning it longitudinally on a strip of mattress border material, producing spaced tucks from the mattress material, the tucks extending across a width of the material, placing the length of handle strapping on the mattress border with its longitudinal ends adjacent the tucks, folding the tucks towards each other over the opposite longitudinal ends of the lengths of strapping, and sewing the tucks to the border material across the width of the latter to capture the opposite ends of the handle strapping. The border material and the handle strapping are drawn from separate rolls, lengths of handle strapping are severed from a free end of a strapping roll, the tucks are formed in a length of mattress border material drawn from a mattress border material roll, and the severed lengths of strapping are conveyed to an deposited between the tucks. The process is repeated at predetermined intervals along the border material to provide as many handles as may be required around a perimeter of a mattress border to be formed by the mattress border material, and a length of the mattress material incorporating the handles is severed from the roll and joined end to end to form the mattress border.
Patent CA-2273646-A1 (CA)
Title: Method of manufacturing indiffused optical waveguide structures in a substrate
Inventor: CARMANNINI CARLO
IPC: G02B6/134
Filed: 1999-06-04
Abstract: The invention relates to a method of manufacturing an indiffused optical waveguide (6) in a substrate (1). A metal layer (7) and photoresist (8) are deposited on a substrate (1) in this order. Portions of the photoresist (8) are removed such that a photoresist structure (8) corresponding to the desired waveguide structure is left. The exposed portions of the metal layer (7) are removed by a chemical/physical etching technique whereafter the remaining photoresist (8) is removed and the remaining metal layer (7) is diffused into the substrate (1) by a heat treatment. The usage of a chemical/physical etching method for removing portions of the metal layer (7) results in smaller variations in the width of the waveguide after indiffusion. Such waveguides are particularly advantageous when being used in connection with acousto-optical devices. The optical waveguides according to the invention are also useable with other integrated optics devices.
Patent CA-2273864-A1 (CA)
Inventor: SEEBALD STEFFEN
IPC: C07F7/18
Filed: 1999-06-09
Abstract: The present invention relates to a new process for the preparation of organosilanes functionalised in the 3-position, by the reaction of suitable allyl compounds with hydrogen silanes, using platinum catalysts having one or more sulfur-containing ligands.
Patent CA-2274478-A1 (CA)
Title: Organometallics for lightwave optical circuit applications
Inventor: BOYLAN ELIZABETH A
IPC: G02B6/12
Filed: 1997-11-07
Abstract: A plurality of organometallic compounds (12-18) are converted into vapors and are mixed along with combustion gases (32-38) to form a vapor stream that flows along through pipe (40). This vapor stream burns at burner (42) to form soot (50). This soot (50) deposits onto rotating substrate (60) so as to form a consolidated oxide layer.
Patent CA-2274614-A1 (CA)
Title: A method of leak testing an assembled plate type heat exchanger
Inventor: SHAW JONATHAN GRAHAM
IPC: G01M3/22
Filed: 1998-10-08
Abstract: A method of positively locating the source of leaks in the heat transfer surface area of the plate heat exchanger between separate product and service fluid paths arranged in an intimitate heat exchange relationship is disclosed. The method comprises: circulating a solution through one fluid path of the exchanger, the solution consisting of solvent with appreciable vapor pressure under the chosen test conditions; providing a gas flow across the other fluid path of the exchange surface by means of forced or natural convection; applying a positive pressure differential between solution and gas stream; and detecting visually the location of deposited solutes on or around the other fluid path.