baber/WOPTO huggingface dataset:
Patent CA-2165835-C (CA)
Title: Switches for automated guideway transit systems
Inventor: BISHOP ARTHUR ERNEST
IPC: B61L5/00
Filed: 1994-07-12
Granted: 2003-12-16
Abstract: A switch for connecting a railway track (1, 1) with a branch railway track (2) the railway track having a discontinuity, switching being effected by a mechanism which moves both ends of the railway track adjacent the discontinuity from a first position in which they align with both ends of a fixed part of the railway track (5, 6) to a second position in which they align with both ends of the branch railway track (7, 8), the movement being effected by causing a section of the railway track (3, 4) adjacent to the discontinuity to flex. In a preferred form of the invention the section of the railway track is lifted and lowered during the switching procedure. The two rails (3, 4) of the flexing section are connected together by ties (20), these ties (20) when moved cause the rails (3, 4) to flex.
Patent CA-2169191-C (CA)
Inventor: WANG ELIZABETH A
IPC: A61P25/00
Filed: 1994-08-19
Granted: 2008-01-15
Abstract: L'invention concerne des procédés et des dispositifs servant à provoquer la croissance de cellules nerveuses et à réparer des déficiences nerveuses chez un mammifère. Le procédé comprend l'administration audit mammifère, au niveau du site de déficience, d'endommagement ou d'appauvrissement nerveux, d'une quantité efficace d'une protéine morphogénétique osseuse, soit mélangée à un véhicule acceptable pharmaceutiquement, soit adsorbée dans une matrice appropriée. Le dispositif est constitué par une protéine morphogénétique osseuse combinée éventuellement à d'autres facteurs, adsorbée sur une matrice appropriée et contenue à l'intérieur d'un vaisseau nerveux artificiel de remplacement.
Patent CA-2173531-C (CA)
Inventor: NAYAR HARBHAJAN S
IPC: C04B35/64
Filed: 1996-04-04
Granted: 1999-07-27
Abstract: Process and apparatus for the heat treating of a part suspected of containing a lubricant in which the part is preheated to a temperature at which the lubricant vaporizes, the vaporized lubricant is converted to at least one gaseous by-product, the concentration of at least one of the by-products is thenmeasured and heat treating of the part is conducted when the concentration of the measured by-product or total C-H bonds thereof reaches a predetermined value.
Patent CA-2179080-C (CA)
Title: Method for producing oxygen and generating power using a solid electrolyte membrane integrated with a gas turbine
Inventor: PRASAD RAVI
IPC: B01D53/22
Filed: 1996-06-13
Granted: 1999-12-21
Abstract: A compressed, oxygen-containing gas stream is combusted and then contacted with a solid electrolyte membrane to produce an oxygen-depleted, compressed gas stream and product oxygen.  Preferably, the oxygen-depleted gas stream is further combusted, used to produce steam, and/or used to preheat the oxygen-containing gas stream prior to expansion in a gas turbine.
Patent CA-2179952-C (CA)
Inventor: PINHEIRO ELIBERTO EDUARDO
IPC: E21B43/12
Filed: 1996-06-26
Granted: 2001-08-21
Abstract: An adapter for oil well tubings interconnects two tubings in the interior of an oil well. Two types of adapters are provided, one for use when the two tubings are not installed at the same time and the other for use when the tubings are installed simultaneously. The first type has in its interior two bores to connect to the two tubings. The top end of the first bore is threaded to permit its connection to one of the tubings. The second bore has a diameter larger than that of the first to permit the insertion into its interior of the second tubing. The second type of adapter has in its interior two threaded bores to interconnect the two tubings. In both types of oil well tubing adapters, the bottom portion of the adapter has a 180° bend segment which permits communication between the two orifices, thus making intercommunication between the tubings possible. A connection in the bottom part of the adapter permits its interconnection to a tubing conducting the ascending flow of oil coming from the production region, this flow passing into the interior of the tubing adapter by way of orifices existing in the internal part of the connection. These orifices likewise prevent the passage of the mechanical interface to the bottom of the well, the occurrence of which would make it impossible to apply an intermittent production method with a mechanical interface.
Patent CA-2181901-C (CA)
Title: Pyridazinone derivatives
Inventor: TANIKAWA KEIZO
IPC: C07D237/22
Filed: 1995-01-24
Granted: 2005-09-13
Abstract: Pyridazinone derivatives represented by the formula (I) and antiplatelet agents containing them:   (see formula I) [wherein R is a hydrogen atom or a C1-C4 alkyl group, X is a hydrogen atom, a chlorine atom or a bromine atom, Ar is a pyridyl group or a phenyl group substituted with OR1 (wherein R1 is a hydrogen atom or a C1-C4 alkyl group) and A {wherein A is a hydrogen atom, a halogen atom, a C1-C4 alkyl group or OR2 (wherein R2 is a hydrogen atom or a C1-C4 alkyl group)}, Y is C1-C8 alkylene wherein one carbon atom on the straight chain is substituted with one OR1 group (wherein R1 is the same as defined above), and Z1 and Z2 are independently a hydrogen atom, a halogen atom, a C1-C4 alkyl group or a OR1 group (wherein R1 is the same as defined above)].     These compounds have strong antiplatelet effects, are excellently safe, and can be used as active ingredients of prophylactic and therapeutic drugs for various thrombotic diseases.
Patent CA-2189552-C (CA)
Title: Closed cell, low density ethylenic polymer foam
Inventor: CHAUDHARY BHARAT INDU
IPC: C08J9/30
Filed: 1995-02-10
Granted: 2007-03-27
Abstract: An uncrosslinked, closed cell, low density ethylenic polymer foam having a fresh density of less than 150 kg/m3 is prepared from a foaming composition comprising an uncrosslinked low density ethylenic polymer selected from polyethylene, ethylene-vinyl acetate copolymers and ethylene-acrylic acid copolymers and having a melt index (according to ASTM D 1238) of less than 25 grams per ten minutes and a melt tension (measured at 190.degree.C with a 2.16 kg weight and 60 rpm) between 2.0 grams and 9.0 grams, using inorganic halogen-free blowing agents, such as carbon dioxide, argon, or mixtures thereof. A process for preparing such uncrosslinked, closed cell, low density ethylenic polymer foam comprising extruding an ethylenic polymer of suitable melt tension using a 100 percent inorganic blowing agent, such as carbon dioxide, argon, or mixtures thereof, and the foams produced with this process are also disclosed.
Patent CA-2189917-C (CA)
Title: Modular pallets and components therefor
Inventor: NASH ABBEY
IPC: B65D19/32
Filed: 1996-11-08
Granted: 2006-10-17
Abstract: A post in a modular pallet includes a male part and a female part shaped to receive the male part along a predetermined axis. Complementary locking structure, such as mating screw thread segments or mating ratchet teeth, are formed with the male and female parts and interlock progressively to resist relative axial separation of the parts when the parts are placed in a predetermined locked orientation. Complementary detent structures resist displacement of the parts from their locked orientation toward an unlocked orientation in which the parts separate axially.
Patent CA-2190878-C (CA)
Inventor: BORDEN KEITH A
IPC: C08J9/02
Filed: 1995-10-26
Granted: 2001-02-13
Abstract: A thermosetting unsaturated polyester-polyurethane hybrid foam resin composition is made without significant blistering by using a 2-component catalyst system - one which initiates at room temperature and one which initiates at a temperature of at least 75°C and has a one-hour half-life temperature of at least 90°C; the composition has a room temperature stability of at least thirty days.
Patent CA-2203388-C (CA)
Title: Process and catalyst for the direct hydrogenation of carboxylic esters
Inventor: SINGLETON DAVID MICHAEL
IPC: C07C29/149
Filed: 1995-11-06
Granted: 2006-10-03
Abstract: A process and catalyst for the direct hydrogenation of carboxylic esters which comprises contacting and reacting one or more esters which hydrogen under predominantly liquid phase hydrogenation conditions in the presence of a catalyst comprising a copper compound, a zinc compound and at least one compound selected from the group consisting of aluminium, zirconium, magnesium, a rare earth and mixtures thereof, prepared by calcining these compounds at a temperature in the range of 200 to less than 400 °C.
Patent CA-2206596-C (CA)
Inventor: KARLSSON ROLF
IPC: B23C5/06
Filed: 1995-12-13
Granted: 2006-01-31
Abstract: The invention relates to a process for the production of a milling tool for cutting machining, preferably of metals. The milling tool comprises a holder part (2) for the fixation of the milling tool upon a rotating driving arrangement, and an insert-carrying part which around its periphery is equipped with several detachable cutting inserts (23), each cutting insert being fastened in an insert seat, which at least partly is situated in a peripherical, insert-carrying milling tool portion (12). Each insert seat comprises a bottom support surface (10) and a side support comprising at least one side support surface (9), a chip pocket (25) being provided in front of each insert seat in the direction of rotation. The advantage of the invention is that the side support of the insert seat at least partly is made by a ball-nose end mill (8). This brings about that the humber of insert seats in a given milling tool may be substantially increased.
Patent CA-2207457-C (CA)
Inventor: MANE JEAN
IPC: A23L27/20
Filed: 1996-08-29
Granted: 1999-01-19
Abstract: L'invention concerne des compositions rafraîchissantes, des compositions aromatisantes et des compositions ingestibles et topiques contenant au moins un composé rafraîchissant choisi parmi le monomenthyl succinate, les sels de métaux alcalins du monomenthyl succinate, les sels de métaux alcalino-terreux du monomenthyl succinate et leurs mélanges. Ces compositions procurent un effet rafraîchissant agréable, de longue durée sans amertume et l'effet rafraîchissant se manifeste différemment de celui des autres agents rafraîchissants connus. De ce fait, un effet complémentaire ou synergique peut être obtenu par combinaison avec d'autres agents rafraîchissants. En outre, les composés rafraîchissants à base de succinate conformes à l'invention permettent d'augmenter la sensation d'alcool dans les boissons alcooliques. Enfin, les composés rafraîchissants à base de succinate procurent un goût rafraîchissant quand ils sont appliqués aux filtres, aux papiers combustibles, et aux feuilles d'enrobage des produits de tabac à fumer et quand ils sont incorporés dans les produits de tabac à mâcher ou à priser.
Patent CA-2209079-C (CA)
Inventor: NAKAMURA TORU
IPC: C08L79/08
Filed: 1997-06-25
Granted: 2007-10-16
Abstract: Improved process for producing a polybenzimidazole compound in solution by dissolving a fully dried polybenz-imidazole of the following general formula (1) or (2) in N,N--dimethylacetamide of a sufficiently reduced water content at an elevated temperature of 260°C or higher in an inert gas atmosphere and a solution of the polybenzimidazole compound produced by the process. The solution remains useful for an extended time without using metal salts or any other stabilizers:   (see formulas 1 and 2) where R1, R2 and R5 are tetra-, di- and trivalent aromatic groups, respectively; R3, R4 and R6 are each independently a hydrogen atom, an alkyl group or an aryl group; n is an integer of 2 or more.
Patent CA-2211566-C (CA)
Title: Dispositif de fixation de marques, procede et dispositif permettant de retirer de telles marques de cintres
Inventor: MARSHALL DAVID J
IPC: A47G25/14
Filed: 1996-02-02
Granted: 2005-05-03
Abstract: La présente invention concerne un cintre à vêtements (2) en plastique moulé comportant une fixation améliorée pour des marques. En l'occurrence, le cintre comporte un crochet pourvu d'une âme dressée (4) s'introduisant à l'intérieur d'une cavité ouvrant vers le bas dans une marque en plastique moulé (18) dont les parois latérales comportent des ouvertures. L'âme est pourvue de moyens de fixation sous forme d'une lame de plastique à effet ressort comportant une partie débordant latéralement (20) et disposée pour pénétrer dans l'ouverture empêchant ainsi le retrait de la marque du crochet, sauf à dégager physiquement de l'ouverture la lame ressort pour permettre de dégager la marque du crochet. L'invention concerne également un procédé et un dispositif permettant de dégager la marque du crochet selon une technique consistant à introduire dans la marque une broche définie sur une première plaque de façon à agir sur le dispositif de fixation de marques. Cela permet de dégager la marque du dispositif de fixation de marques, sans abîmer ni la marque ni le dispositif de fixation de marques. La présente invention, qui permet aussi bien une intervention automatisée qu'une intervention manuelle pour dégager la marque du crochet du cintre, concerne également un procédé et un dispositif applicables à cette intervention.
Patent CA-2214338-C (CA)
Inventor: ESSER FRANZ
IPC: C07D233/66
Filed: 1996-04-13
Granted: 2010-10-19
Abstract: La présente invention concerne l'utilisation de substances .alpha.1L-agonistes pour le traitement de l'incontinence urinaire.
Patent CA-2216620-C (CA)
Inventor: CLERMONT NORMAND A
IPC: H04Q3/00
Filed: 1997-09-24
Granted: 2002-06-25
Abstract: A method,  apparatus  and  system  for  dynamically routing  selected  calls  through  an  intelligent  switched telephone network are described.   The method leverages the resident switching power in the Public Switched Telephone Network by departing from the Advanced Intelligent Network (AIN) call model while adhering to the basic principles of ISUP common channel signaling to introduce new flexibility in call routing.  Using the method, calls can be efficiently routed and rerouted through the network.  Control of a call can be effected by either the called party or the calling party. The method can be practised using either a virtual switching point  (VSP)  or an ISTP.   The VSP is a physical mode in the signaling plane of the network and a virtual node in the switching plane.   Calls are routed to the VSP using dedicated trunk groups which may be loop-back ISUP trunks or inter-switch ISUP trunks.  Calls are routed to the dedicated trunk groups using standard routing translation tables  and methods.    The  advantage  is  a  new  level  of flexibility in call routing control that permits the rapid introduction of new services which include  features  that could not be efficiently accommodated using prior methods of call routing.
Patent CA-2217007-C (CA)
Title: Extruded, open-cell microcellular foams, and their preparation process
Inventor: SHMIDT CRESTON D
IPC: C08J9/14
Filed: 1996-03-21
Granted: 2008-03-11
Abstract: Disclosed is an extruded, open-cell microcellular alkenyl aromatic polymer foam useful in insulating applications. The foam has an open cell content of 70 percent or more. The foam has an average cell size o f 70 micrometers or less. The foam is particularly useful in evacuated or vacuum insulation panels. Further disclosed is a process for making the open-cell foam.
Patent CA-2222955-C (CA)
Title: Porous composite
Inventor: CLOUGH NORMAN ERNEST
IPC: C08J7/04
Filed: 1996-06-06
Granted: 2001-03-20
Abstract: A porous composite laminate material comprises a layer (4) of expanded polytetrafluoroethylene (PTFE) membrane, and a layer (2) of non-expanded porous PTFE attached thereto. The non-expanded porous PTFE layer may be a sintered porous PTFE produced by sintering granular-type PTFE particles to form a porous integral network of interconnected particles; and may be produced in situ by spray application onto the membrane followed by baking.  Modifiers including unsintered fine powder PTFE, thermoplastic fluorinated organic polymer, a low molecular weight PTFE and mixtures thereof may be included. The expanded PTFE membrane can be in sheet form or in the form of expanded PTFE fibres woven into a fabric. The laminate may be used for oiling and cleaning high temperature fuser rolls in a photocopying machine, or as a filter.
Patent CA-2233276-C (CA)
Title: Multi-port ethernet frame switch
Inventor: ALEXANDER THOMAS
IPC: H04L12/56
Filed: 1998-03-26
Granted: 2002-08-20
Abstract: An Ethernet switch which includes a plurality of medium access control (MAC) interface logic circuits each coupled to an associated output port operative to perform serial-to-parallel conversion for frames being received from an associated output port and parallel-to-serial conversion for frames being transferred to an associated output port and other interfacing functions. The switch has an internal bus, a buffer memory coupled to each of the MAC interface logic circuits at one end and to the internal bus at another end, a switch central processor coupled to the internal bus and a multi-channel Direct Memory Access (DMA) Controller coupled to the internal bus and to the switch central processor, operative to transfer incoming frames to an external memory and to transfer frames stored temporarily in external memory to their destination in accordance with instructions from the switch central processor. An external memory controller is coupled to the DMA Controller and to an external memory port. An expansion bus interface logic circuit is coupled to said DMA Controller and to an expansion bus port. The switch central processor performs frame address handling and controls transfer of incoming frames to their destination.
Patent CA-2233291-C (CA)
Title: Systeme de communication optique
Inventor: WAKE DAVID
IPC: H04B10/2575
Filed: 1996-10-11
Granted: 2002-01-01
Abstract: On utilise un système de distribution optique pour un signal devant être transmis à des fréquences radio, par exemple, à des usagers du téléphone mobile. Les signaux haute fréquence (LO) et de fréquence intermédiaire (IF) sont modulés sur des superporteuses optiques. Les signaux optiques sont distribués par l'intermédiaire d'un réseau optique à une ou plusieurs stations à distance. Un mélangeur/détecteur faisant partie de la station à distance mélange les signaux et les convertit en signaux électriques, ce qui produit le signal électrique radiofréquence nécessaire à la transmission. Dans un mode de réalisation préféré, le mélangeur/détecteur est un transistor bipolaire à hétérojonction.
Patent CA-2237687-C (CA)
Title: Apparatus for molding composite articles
Inventor: MCCOLLUM ROBERT P
IPC: B29C45/76
Filed: 1997-09-15
Granted: 2005-06-28
Abstract: An apparatus for molding composite articles includes a pair of opposed match ed- tool mold sections, each having a rigid housing (28, 30) and a thin, semi-rigid membrane (32, 34) removably and sealably mounted on the housing so as to define a fluid-tight chamber (38, 40) therein. The chamber of each mold section is filled with a noncompressible heat-conductive fluid (42) to provide fluid backing to the portions of each membrane defining the molding surfaces of each mold section (14, 16). A system of temperature control coils (56) extending within each chamber are connected to an external heater/chiller un it to permit circulation therethrough of a suitable temperature control fluid, whereby positive control of the temperature of the backing fluid (42) and, correlatively, the molding surfaces of the membranes.</SDOAB >
Patent CA-2244677-C (CA)
Inventor: ZANOLI ALAIN PAUL BERNARD
IPC: C03B5/43
Filed: 1998-08-05
Granted: 2006-11-28
Abstract: The invention covers a fused cast refractory material essentially consisting of .beta. alumina and having the following chemical analysis expressed as molar percentages: - 11.2596 to 15.4586 of at least one alkaline metal oxide selected from the group comprising Na2O, Li2O and K2O provided that Na2O represents at least 9.3%, - 0 to 2.97% SiO2, - 81.38% to 88.75% Al2O3, and - at most 0.2% impurities and in which .beta. alumina represents at least 98% of the crystallised phases.      Use for the construction of glassmaking furnaces.
Patent CA-2245169-C (CA)
Inventor: SPURR PAUL
IPC: A61K31/505
Filed: 1998-08-18
Granted: 2004-08-10
Abstract: The present invention concerns a process for the preparation of a 2,5-disubstituted pyridine of the formula (I)   which comprises the steps of a) reacting a compound of the formula (II)   with an acrylic compound of the formula (III)   to form a compound of the formula (IV)   and b) reacting the compound of formula (IV) under water free conditions with a hydrogen halide in which formulae R1 signifies lower alkyl, R2 signifies di-(lower alkyl)amino or a 5- or 6- membered -N-heterocyclyl group having the free valence bond at the nitrogen atom, and X signifies halogen.
Patent CA-2246933-C (CA)
Title: Method and system for placing a purchase order via a communications network
Inventor: HARTMAN PERI
IPC: G06F13/00
Filed: 1998-09-11
Granted: 2012-01-17
Abstract: A method and system for placing an order to purchase an item via the Internet. The order is placed by a purchaser at a client system and received by a server system. The server system receives purchaser information including identification of the purchaser, payment information, and shipment information from the client system. The server system then assigns a client identifier to the client system and associates the assigned client identifier with the received purchaser information. The server system sends to the client system the assigned client identifier and an HTML document identifying the item and including an order button. The client system receives and stores the assigned client identifier and receives and displays the HTML document. In response to the selection of the order button, the client system sends to the server system a request to purchase the identified item. The server system receives the request and combines the purchaser information associated with the client identifier of the client system to generate an order to purchase the item in accordance with the billing and shipment information whereby the purchaser effects the ordering of the product by selection of the order button.
Patent CA-2248610-C (CA)
Inventor: TORNKVIST CHRISTER
IPC: G01R29/24
Filed: 1997-03-13
Granted: 2002-04-02
Abstract: Procédé de mesure de la charge spatiale d'un câble coaxial comprenant un conducteur interne (2), un écran de câble (3) et un isolant électrique (4) entre le conducteur interne et l'écran de câble. L'écran de câble peut être retiré de part et d'autre d'une région de mesure et une impulsion de tension électrique, produite par un générateur d'impulsions électriques (10), est appliquée sur une partie de l'isolant (4) du câble, dans la plage de mesure. Un signal acoustique, en présence des charges spatiales s'exerçant dans l'isolant du câble, est produit par l'impulsion de tension en coopération avec les charges spatiales, un signal acoustique éventuel étant enregistré par un dispositif d'enregistrement du son (8). Une électrode externe de forme annulaire, reliée à la terre (7) est appliquée autour de la région de mesure, le dispositif d'enregistrement du son est installé au contact direct de cet électrode. L'impulsion de tension est appliquée sur l'écran de câble, des deux côtés de la région de mesure. Cette impulsion est communiquée au conducteur interne du câble du fait de l'impédance de ce câble.