baber/WOPTO huggingface dataset:
Patent CA-2209639-A1 (CA)
Title: A stencil for making drawings with obtention of a virtual-depth effect and a method for using it
Inventor: ARAUJO DE SOUSA MAURICIO
IPC: B43L13/20
Filed: 1996-01-04
Abstract: The present invention refers to a stencil especially developed for making drawings and/or other characters, which are viewed so as to obtain a virtual-depth effect, as well as a method of using it. The stencil developed comprises a base piece (1) of any shape, provided with letters (2) and/or graphic elements (3) and/or wholly or partly preformed drawings (4), all of them cut therein, said cut-out elements being mold and patterned for reproducing drawings on a determined surface, said base piece (1) having markings at progressive intervals (m), so that the interval between 0 and 1 will be smaller than that between 1 and 2, the latter will be smaller than that between 2 and 3 and so on.
Patent CA-2210246-A1 (CA)
Inventor: WU JIUN-CHEN
IPC: C08F265/04
Filed: 1997-07-14
Abstract: Methods for preparing uniformly sized polymer particles comprised of multi-functional monomers such as poly(1,4-butanediol diacrylate) and poly(1,6-hexanediol diacrylate) are disclosed. The particles are of a size, uniformity, and contain physical characteristics that make them ideally suitable for use as spacers in liquid crystal display devices.
Patent CA-2210579-A1 (CA)
Title: Benzene derivatives
Inventor: TSUCHIYA NAOKI
IPC: C07C235/38
Filed: 1996-11-26
Abstract: Novel benzene derivatives of the formula (I) shown below, pharmacological salts thereof, pharmacological solvates of the above-mentioned benzene derivatives and salts, pharmaceutical compositions including, as active ingredients, the above-mentioned compounds, and especially, prophylactic or therapeutic medicines for allergic diseases.   (see formula I) wherein R1 = H, C1 - C12 cyclic or straight or branched chain alkyl group (which may be substituted by one or more C6 - C10 aryloxy groups), C7 - C12 aralkyl group (of which the aryl group may be substituted one or more of halogen, methyl and methoxy, or C3 - C10 alkenyl which may be substituted by one or more phenyl groups; A = O, S or CH2 group, B = CO or CZ2CO group (Z = H or F), R2 = H or C1 - C4 alkyl group, X = halogen or methyl group, and Y = H, NO2 or CN group.
Patent CA-2213821-A1 (CA)
Inventor: PINNAU INGO
IPC: B01D71/70
Filed: 1996-02-22
Abstract: L'invention concerne un procédé à membrane qui permet de séparer le chlore dans les flux gazeux qui contiennent du chlore (1). Le procédé consiste à utiliser une membrane permsélective (2) qui est sélective par rapport au chlore et stable par rapport à une présence durable de celui-ci. On peut utiliser le procédé pour traiter les gaz résiduaires d'usines qui fabriquent du chlore et de la soude caustique, par exemple.
Patent CA-2215044-A1 (CA)
IPC: F16L15/08
Filed: 1997-09-10
Abstract: A threaded pipe connection is disclosed for connecting two joints of pipe having externally threaded pin members, one pin member having external right-hand threads and the other pin member having left-hand threads.  An internally threaded coupling having right and left-hand threads that mates with the threads on the pin members.  An internal pressure seal ring is positioned to provide a seal between the ends of the pin members.  A plurality of mating lugs and grooves on the ends of the pin members hold the pins from relative rotation when the connection is being made up.  A metal-to-metal seal located between each pin member and the coupling adjacent each end of the coupling isolates the threads of the connection from the ambient environment thus sealing off the pipe annulus from external pressure due to hydrostatic head.  Indicia such as engaging surfaces or aligned scribe lines on the pin members ensure that the sealing surfaces on the coupling and the pin members that form the external seals are positioned to properly engage and form seals when the connection is made up.
Patent CA-2215618-A1 (CA)
Title: Protein production and delivery
Inventor: TRECO DOUGLAS A
IPC: C07K14/505
Filed: 1996-03-12
Abstract: The invention relates to novel human DNA sequences, targeting constructs, and methods for producing novel genes encoding thrombopoietin, DNase I, and .beta.interferon by homologous recombination. The targeting constructs comprise at least: (a) a targeting sequence; (b) a regulatory sequence; (c) an exon; and (d) a splice-donor site. The targeting constructs, which can undergo homologous recombination with endogenous cellular sequences to generate a novel gene, are introduced into cells to produce homologously recombinant cells. The homologously recombinant cells are then maintained under conditions which will permit transcription of the novel gene and translation of the mRNA produced, resulting in production of either thrombopoietin, DNase I, or .beta.interferon. The invention further relates to methods of producing pharmaceutically useful preparations containing thrombopoietin, DNase I, or .beta.-interferon from homologously recombinant cells and methods of gene therapy comprising administering homologously recombinant cells producing thrombopoietin, DNase I, or .beta.-interferon to a patient for therapeutic purposes.
Patent CA-2216723-A1 (CA)
Title: Real time data migration system and method employing sparse files
Inventor: LAM WAI TUNG
IPC: G06F12/08
Filed: 1996-03-29
Abstract: A system and method for real time data migration in a networked computer system (1) uses a known operating system feature, a sparse file (4C), to represent a migrated file. The sparse file consumes a minimum amount of physical space on the file server (10) but is defined as having the same size and attributes as the original file. When a user accesses a migrated file, the file appears to be resident on the file server and is automatically and transparently returned to the file server from an optimized storage location in a hierarchical storage management system (20, 30).
Patent CA-2218708-A1 (CA)
Title: Electrical load optimization device
Inventor: BUDNEY STANLEY M
IPC: G05D23/19
Filed: 1996-05-07
Abstract: A demand control apparatus includes a switch (26) in the control signal line (16) of an electrically powered piece of equipement (22). The switch (26) is controlled by a digital recycle counter (24) so as to periodically cycle off and on during times when an equipment generated control signal is present in the control signal line (16). The control signal line (16) could be a thermostat control line on a standard air conditioning unit and the equipment generated control signal would normally correspond to the thermostat calling for cooling. When the switch (26) is opened the equipment load (20) reacts as though the thermostat has been satisfied. When the equipment generated AC  control signal is sensed in the control signal line (16), a digital counter (24) is activated to hold the switch (26) open until a preset number of AC  pulses have occurred. The switch (26) is then closed until a second preset number of AC pulses have occurred. The open-closed cycle is repeated as long as the equipment control signal is present. The cycle periods can be adjusted in response to external conditions such as ambient temperature or line frequency. In multiple load applications, load diversity is improved and aggregate demand is reduced after power outages. Sequential start of diverse and multiple loads is assured.
Patent CA-2218937-A1 (CA)
Title: A pulse width modulation device for converting direct voltage into a three-phase alternating voltage
Inventor: LINDBERG ANDERS
IPC: H02M1/12
Filed: 1997-11-12
Abstract: A device for converting direct voltage into a three phase alternating voltage having a two level converter connected to a direct voltage network and to an alternating voltage network. A control apparatus for performing pulse width modulation determines the pulse width modulation pattern for each phase by comparing a triangular wave for each phase with a reference alternating voltage. The triangular wave is inverted an even number of times during a fundamental oscillation of the reference alternating voltage and the time position of the inversions of each triangular wave is always such that two triangular waves are half a period displaced with respect to the third.
Patent CA-2219211-A1 (CA)
Inventor: KIPP DAVID R
IPC: A61M39/10
Filed: 1996-04-26
Abstract: Cette invention concerne un connecteur Luer-Lock perfectionné comportant une paire de surfaces d'enclenchement coniques (32, 50) situées entre la partie femelle (24) et l'un des deux composants du connecteur de type Luer. Les surfaces d'enclenchement coniques (32, 50) permettent d'assurer un enclenchement graduel par friction lorsqu'on resserre la partie femelle (24) pour minimiser le risque de rotation inverse intempestive et lorsqu'on desserre cette partie femelle (24). Le corps tubulaire comporte également une pluralité de cannelures (94) s'étendant axialement, conçues pour s'emboîter avec une pluralité de nervures (52) orientées radialement vers l'intérieur et situées sur la partie femelle (24), et verrouiller positivement de la rotation des deux composants lorsque la partie femelle se trouve en position proximale. Une petite arête circonférentielle (106) fournit à l'opérateur une rétroaction tactile indiquant que la partie femelle (24) est en position de verrouillage positif de la rotation par rapport au corps tubulaire. On peut retirer complètement du corps tubulaire la partie femelle (24) dans le sens proximal et la faire se rétracter à proximité d'une conduite d'alimentation pour la retirer du site du connecteur.
Patent CA-2221110-A1 (CA)
Title: Cyclopentane heptan(ene)oic acid, 2-heteroarylalkenyl derivatives as therapeutic agents for the treatment of ocular hypertension
Inventor: BURK ROBERT M
IPC: C07D333/56
Filed: 1996-05-14
Abstract: The invention relates to the use of derivatives of F-type prostaglandins as ocular hypotensives. The PGF derivatives used in accordance with the invention are represented by formula (I), wherein wavy line attachments indicate either the alpha .alpha. or beta .beta. configuration; hatched segments indicate .alpha.  configuration; solid triangles are used to indicate .beta. configuration, dashed bonds represent a double bond, or a single bond, R is a substituted heteroaryl radical, R1 is hydrogen or a lower alkyl radical having up to six carbon atoms, X is selected from the group consisting of -OR1 and -N(R1)2, Y is = O or represents 2 hydrogen radicals. Certain of the compounds represented by formula (I) comprise another aspect of the present invention.
Patent CA-2222465-A1 (CA)
Inventor: CHIZUK JOSEPH A JR
IPC: H04N1/032
Filed: 1997-11-25
Abstract: A writing head suitable for use in an electrostatic marking device includes a plurality of first surface conductive pads permanently fixed to a first surface of the first head member and disposed in a lengthwise row, and a plurality of second surface conductive pads permanently fixed to the second surface of the first head member.  Each second surface conductive pad is paired with one of the first surface conductive pads, and the pair of pads is electrically connected by way of a conductive via extending through the first head member.  A plurality of conductors is disposed on the first head member in a substantially equally spaced and parallel relationship, with one end of each conductor being permanently connected to a respective one of the first surface conductive pads.  The other end of each conductor, referred to as a nib, being exposed in at least one line at the first edge of the first surface and lying in a plane perpendicular to the first surface.  The plurality of nibs form the nib line of the writing head.  The writing head also includes a second insulative head member disposed on top of the plurality of conductors, the plurality of conductive pads and the first head member.  The second head member restrains the plurality of conductors in fixed positions.  The conductive pads may be arranged in novel arrangements that provide great flexibility in design in order to accommodate a wide variety of writing head pitches and lengths.
Patent CA-2224680-A1 (CA)
Title: Procede et appareil d'estimation de la densite du spectre de puissance
Inventor: H NDEL PETER
IPC: G10L25/48
Filed: 1996-06-07
Abstract: L'invention porte sur un compensateur basé sur l'erreur résiduelle de la polarisation du domaine de fréquence d'un estimateur de spectre autorégressif. L'analyse à codage à prédiction linéaire (CPL) (16) s'effectue sur le signal résiduel et une estimation de la densité du spectre de puissance paramétrique (DSP) (18) est formée à l'aide des paramètres CPL obtenus. L'estimation de la DSP du signal résiduel multiplie (20) l'estimation de la DSP du signal d'entrée.
Patent CA-2227803-A1 (CA)
Inventor: WOO RICKY AH-MAN
IPC: C11D17/00
Filed: 1996-07-25
Abstract: Toilet bowl detergent compositions, preferably blocks of the "in-tank" or "rim-block" types, contain a cleaning system comprising: detergent surfactant of the amphoteric type, preferably zwitterionic, more preferably one that contains a carboxylate group and a cationic group, and even more preferably a fatty acid amidoalkylene betaine, and polycarboxylate chelating agent, preferably, citric acid, or similar polycarboxylic acid, are combined with some means of creating the desired concentration of the cleaning system in the toilet bowl water, preferably by means of blocks with a dissolution retarding system, preferably with the dissolution retarding system comprising a combination of water soluble cellulosic polymer, more preferably hydroxyethyl cellulose or hydroxypropyl cellulose and, polyethylene glycol containing polymer, any perfume present being selected to be mostly hydrophobic. The compositions have a pH, in use, of from about 4 to about 9 and the blocks are preferably extremely homogeneous. Processes for keeping toilet bowls clean are disclosed.
Patent CA-2229207-A1 (CA)
Title: Recovery of caprolactam from nylon-6 scrap
Inventor: JENCZEWSKI THEODORE JOHN
IPC: C07D201/12
Filed: 1996-08-05
Abstract: A process for recovering monomer from multi-component waste material that includes a hydrolyzable polymer, includes contacting the multi-component waste material with water and subjecting the resulting mixture to heat and pressure to form a liquid aqueous portion and a water insoluble portion. The liquid aqueous portion mainly includes depolymerization products of the hydrolyzable polymer, and the water insoluble portion mainly includes components other than the depolymerization products. This mixture is cooled and the liquid aqueous portion and the water insoluble portion are separated. Monomer that formed the hydrolyzable polymer is recovered from the liquid aqueous solution.
Patent CA-2232305-A1 (CA)
Inventor: SCHOVENBERG WOLFGANG
IPC: G05B19/05
Filed: 1996-09-05
Abstract: A system for automating the control and regulation of machines and plants in the plastics industry, especially for blow-moulding machines, with programmable controllers via which the control and regulation functions of the machines and plants can be implemented as desired and which have at least one operating and monitoring device and a local bus (user platform), in which the programmable controllers have digital technology units (10) imitating individual electric circuit components by means of which the desired control and regulation functions can be modularly implemented and which are connected to the user platform via data interfaces.
Patent CA-2234520-A1 (CA)
Inventor: GIRARD REMI
IPC: E02D31/04
Filed: 1998-06-01
Abstract: Nous savons que l'eau fait des ravages un peu partout, un en particulier c'est l'infiltration de celle-ci dans les sous-sols par les portes, fenêtres et tuyaux. Dans la présente invention, ces derniers seront bloqués hermétiquement. Un dispositif; soit le système conique, soit le système "vise-gripp" ou celui du parapluie sera postulé pour le scellage des fenêtres et portes. Pour ce qui est des tuyaux, nous appliquerons le principe du cône qui visse.
Patent CA-2234784-A1 (CA)
Title: Computer controlled intake and exhaust valve
Inventor: SEBASTIAN DUANE J
IPC: F01L9/20
Filed: 1998-04-15
Abstract: A computer controlled intake and exhaust valve for internal combustion engines having a microprocessor controlled,  hydraulically operated, valve  actuator with manually adjustable variable performance settings for improving fuel efficiency and reducing emissions while also providing a high performance power stroke and lengthening the life of the valve seat by damping the  impact  of  valve  reseating.     The  computer controlled intake and exhaust valve includes a)  a semi-automatic  engine braking  feature  whereby the compression of exhaust gases within the chamber of a cylinder prior to venting is used to aid in reducing the speed of the vehicle, thus prolonging the life of the brakes and the  safety of passengers,  and b) notched and stepped valve seats which aid in retaining compression within the combustion chamber.
Patent CA-2236078-A1 (CA)
Title: Prophylactic or therapeutic agents for diseases associated with dysfunction of nos
Inventor: KANAYAMA YOSHIHARU
IPC: A61K31/505
Filed: 1997-08-29
Abstract: It is an object of the present invention to provide a therapeutic agent for effectively preventing or ameliorating diseases caused by dysfunction of NOS.     The present invention provides a pharmaceutical composition for preventing and/or treating diseases associated with dysfunction of NOS, comprising as an effective ingredient, a compound of the formula (I):       wherein R1 and R2 each represents a hydrogen atom or, taken together with each other, represent a single bond, while R3 represents -CH(OH)CH(OH)CH3, -CH(OCOCH3)CH(OCOCH3)CH3, -CH3, CH2OH, or a phenyl group when R1 and R2 each represents a hydrogen atom, or -COCH(OH)CH3when R1 and R2 together represent a single bond, or a pharmaceutically acceptable salt thereof.
Patent CA-2237309-A1 (CA)
Inventor: BROWN GARRY
IPC: E21B15/00
Filed: 1998-05-08
Abstract: A method and apparatus for controlling reactive torque on a drill string while drilling.  The apparatus includes a housing and a tubular mandrel.  The housing has a flow passage extending therethrough.   The tubular mandrel  is rotatably mounted to the housing coaxially with an outlet of the fluid flow passage.  Fluids exiting through the outlet of the fluid flow passage pass through the tubular mandrel.   A ratchet mechanism is used for controlling rotation of the tubular mandrel  so that  the tubular mandrel  rotates  freely in a clockwise direction and does not rotate in a counterclockwise direction.   In accordance with the method, the apparatus is suspended from a service rig with a drill string coupled to the tubular mandrel.  When positioned, as described, the apparatus resists reactive torque acting upon the drill string.
Patent CA-2239999-A1 (CA)
Title: Recuperation de grains abrasifs
Inventor: TRISCHUK RONALD W
IPC: B24D3/14
Filed: 1996-11-19
Abstract: L'invention porte sur un procédé de récupération de grains abrasifs à partir de matériaux vitreux agglomérés, consistant à faire bouillir ce matériau dans une solution aqueuse d'une base d'un métal alcalin puis à séparer les grains.
Patent CA-2240390-A1 (CA)
Title: Novel xylanases, genes encoding them, and uses thereof
Inventor: LAHTINEN TARJA
IPC: C12N1/15
Filed: 1996-12-17
Abstract: DNA encoding novel xylanases, vectors containing such DNA, hosts transformed with such DNA, enzyme preparations, and the use of such preparations are described.
Patent CA-2242993-A1 (CA)
Title: Film fin, electrolytique, aprotique, conducteur pelliculaire a liquide immobilise et cellule polymere
Inventor: TAKITA KOTARO
IPC: G02F1/155
Filed: 1997-12-11
Abstract: Cette invention concerne un film fin, électrolytique, aprotique, comportant une solution électrolytique aprotique ainsi qu'un film polyoléfinique microporeux doté d'une affinité pour ladite solution et qui retient cette dernière sous forme infiltrée. On peut fabriquer ledit film fin selon un procédé qui consiste à modifier un film polyoléfinique microporeux en greffant sur la polyoléfine un monomère soluble dans une solution électrolytique aprotique, ou en enduisant le film avec un polypropylène à terminaison modifiée soluble dans la solution, ou en enduisant le film d'une cire soluble dans la solution. On met en oeuvre l'infiltration d'une solution électrolytique aprotique dans un film que l'on obtient en conférant une affinité pour la solution à un film polyoléfinique microporeux contenant une matière conduisant les électrons de manière à obtenir un conducteur pelliculaire à liquide immobilisé. Lorsque le film fin, électrolytique, aprotique comportant un film polyoléfinique microporeux, est utilisé en association à des électrodes positive et négative, on obtient une cellule polymère du type batterie au lithium. Lorsque le conducteur pelliculaire comportant le film polyoléfinique microporeux contenant une matière conductrice des électrons, est utilisé en tant qu'au moins une des électrodes positive et négative en association avec le film fin, électrolytique, aprotique, on obtient une cellule polymère qui offre des résultats satisfaisants de décharge à haut débit, à une température inférieure à celle des batteries au lithium classiques, qui présente une décharge spontanée réduite même à températures élevées, et qui conserve bien ses caractéristiques après avoir été chargée sur une période prolongée.
Patent CA-2244836-A1 (CA)
Inventor: SANTINI CONRAD
IPC: C07D413/12
Filed: 1997-01-31
Abstract: The instant invention is concerned with compounds of the formula I (see formula I) which are useful as antiobesity and antidiabetic compounds. Compositions and methods for the use of the compounds in the treatment of diabetes and obesity and for lowering or modulating triglyceride levels and cholesterol levels or for increasing gut motility or for treating atherosclerosis are also disclosed.
Patent CA-2246989-A1 (CA)
Title: Structures d'interface pour dispositifs electroniques
Inventor: WOJNAROWSKI ROBERT JOHN
IPC: H05K3/34
Filed: 1997-12-19
Abstract: La présente invention a trait à une interface comportant une métallisation à plaque flottante (30 ou 630) formant des motifs sur une couche d'interface diélectrique pourvue d'une première partie formant une plaque centrale (26 ou 626) et d'une seconde partie formant un prolongement (28 ou 626) depuis la plaque centrale s'étendant à l'intérieur d'un passage d'interface. Une autre interface comporte une strucutre de contact flottante renfermant un matériau conducteur (214) recouvrant une perforation au moins une partie de la métallisation à plaque flottante formant un prolongement (216) depuis la perforation. Une interface de zone de contact conductrice comprend au moins une structure d'interface (22, 24, 26, 28 ou 30) couplée entre les premières et seconde zones de contact (112 et 118) et inclut un conducteur électrique dont l'intérieur est partiellement ouvert de sorte qu'il forme un joint élastique entre les première et seconde zones de contact.
Patent CA-2248845-A1 (CA)
Inventor: GATES WILLIAM GEORGE
IPC: H05B3/28
Filed: 1998-09-29
Abstract: A heater is disclosed comprising a foil heating element 6 embedded in a dielectric sheet 8.  A a leaf spring 20 which is curved when relaxed, clamps the embedded element against a surface 18 to be heated.       The heater can be mounted on an internal surface of the enclosure.  Using a proprietary flexible heating element, the heater has been run at a flux of 3.9 kW.m2.          The heater is mounted with  a flexible dielectric face directly against an internal surface of the enclosure.  No machining of the enclosure is needed since the flexible dielectric acts as a thermal gasket.