baber/WOPTO huggingface dataset:
Patent CA-2157704-C (CA)
Inventor: ITOU NABHIKHI
IPC: C09D13/00
Filed: 1995-09-07
Granted: 2001-12-25
Abstract: A wax-like substance mainly consisting of a saturated chain hydrocarbon, in which a weight ratio (C/H) of carbon and hydrogen is 5.839-6.018, a total weight % of the carbon and the hydrogen is 98.50-1000, a number-average molecular weight (Mn) is 3.0x10 3-1.0x10 4, a weight-average molecular weight (Mw) is 1.0x104-5.0x104 and Mw/Mn is 1.0-5Ø In the case of using it for carving and casting, for example, the wax-like substance can be repeatedly used, and has excellent workability. Moreover, the wax-like substance provides easy dewaxing from a mold material. In other words, it provides convenient use. In addition, after a master model is made by processing the wax-like substance and covered with a mold material, it is dewaxed.      Molten metal is poured into the mold material, and a shaped article is produced by cooling and solidifying the mold material where the molten metal has been poured. As a result, shaped articles, such as a decoration having a very fine pattern, an accessory having a complicated and three-dimensional configuration, or an industrial art object, can be suitably produced.
Patent CA-2157978-C (CA)
Inventor: SCHULTZ FRED B
IPC: B60N2/58
Filed: 1995-09-11
Granted: 2005-09-20
Abstract: A seat frame assembly for a motor vehicle comprises a seat frame and a seat back frame. The seat frame is constructed and arranged to have a seat cushion mounted thereon in overlying relation.      The seat back frame is connected with the seat frame and has a pair of spaced metallic vertical support portions at opposite sides thereof, the seat back frame constructed and arranged to have a seat back cushion mounted thereon. At least one of the vertical support portions are formed from a pair of telescoping tubular blanks including an elongated inner metal blank formed into an integrally formed vertical member of the at least one vertical portion extending from a lower portion of the seat back frame connected with the seat frame to an upper end of the seat back frame and a relatively shorter outer metal blank formed into a sleeve rigidly secured in surrounding relation to the lower portion of the vertical support member. The outer blank and inner blank are formed into the sleeve and the vertical member respectively during a hydoforming process in which the inner blank is expanded so that an outer surface thereof is moved into peripheral contact with an inner surface of the outer blank and the inner blank and the outer blank are expanded into peripheral contact with die surfaces defining the exterior surfaces of the one vertical support portion.
Patent CA-2158898-C (CA)
Title: Hockey stick handle
Inventor: BELLEFLEUR ALAIN
IPC: A63B59/70
Filed: 1995-09-22
Granted: 2001-03-13
Abstract: The present invention, relates to a hockey stick shaft or handle having both a forward and a rear gripping zone. The gripping zones each have elongated opposed faces which are of different configuration from each other. For example each gripping zone may be provided with opposed concave and convex faces but wherein the faces of one gripping zone are disposed in reversed relative relation to the other gripping zone in order to accomodate the different gripping position of each hand of a user. A hockey stick provided with such a handle may provide a sense of a better or more comfortable feel on the gripped portion of the handle and/or a sense of a more comfortable and precise control of a blade which may be fixed to the end of such a handle.
Patent CA-2160286-C (CA)
Inventor: EVANS JAMES GIFFORD
IPC: H01Q1/38
Filed: 1995-10-11
Granted: 1999-01-26
Abstract: In an antenna having a conductor of a length L and a dielectric material with a dielectric constant .epsilon.r1 contacting the conductor, a matching dielectric layer .epsilon.r2 less than .epsilon.r1 matches the dielectric constant to free space.  Preferably .epsilon.r2 =   ,  L=   .    The depth d of the second dielectric is a quarter wavelength in the matching layer.  Multiple matching layers with successively decreasing dielectric constants forms embodiments.  In one embodiment the resonant conductive arrangement is a microstrip patch antenna with the dielectric material supporting a patch and matching layer covering the dielectric material.
Patent CA-2161078-C (CA)
Title: Automatic tuning of a position control circuit for a servo device
Inventor: ZOLLER ALLAN C
IPC: G05D3/00
Filed: 1995-10-20
Granted: 1998-06-23
Abstract: A position control circuit having a demodulator with automatic tuning capability for use in an electro-hydraulic positioning system used to position a servo device.  The position control circuit includes the demodulator, an analog to digital converter with an input voltage range, and a microcontroller.  The demodulator has a gain and is operable to convert a feedback signal from the servo device to a position signal having a lower voltage value when the servo device is at its 0% position and an upper voltage value when the servo device is at its 100% position; the lower voltage value and upper voltage values being a function of the demodulator  gain.     Upon  operator   initiation,   the microcontroller automatically calculates the largest value for the demodulator gain that results in the position signal from the demodulator having a lower voltage value within a lower voltage range and an upper voltage value within an upper voltage range, where the lower voltage range and the upper voltage range are within the input voltage range of the analog to digital converter.
Patent CA-2163621-C (CA)
Inventor: KARMASCHEK UWE
IPC: C23C22/78
Filed: 1994-05-17
Granted: 2004-10-26
Abstract: The invention concerns a method of pretreating aluminum or aluminum all oy surfaces before application of a permanent corrosion-protective conversion coating treatment, in particular before phosphating in acidic phosphating baths containing zinc, a chromating treatment, or a chromate free treatment. The method is characterized in that the surfaces are brought into contact with acidic aqueous treatment solution s containing complex fluorides of the elements boron, silicon, titanium, zirconium, or hafnium, alone or in mixtures with each other, at total concentrations between 100 and 4000 mg/L and at a pH between 0.3 and 3.5. Following the pretreatment, the aluminum or aluminum alloy parts may, after shaping if necessary, be joined by adhesive bonding and/or welding to each other or to parts made of steel, zinc plated and/or zinc alloy plate d steel, and/or aluminum or aluminum alloy plated steel.
Patent CA-2165645-C (CA)
Title: Resistivity antenna shield, wear band and stabilizer assembly for measuring-while-drilling tool
Inventor: MORIARTY KEITH A
IPC: E21B47/01
Filed: 1995-12-19
Granted: 2005-04-12
Abstract: A sensor protection system for use with an MWD tool includes a tubular body having lesser and greater diameter portions, antennas mounted in grooves in the lesser diameter portion, shield sleeves covering the antennas and being locked in place against longitudinal and rotational movement, and a wear band on the greater diameter portion to provide a standoff for the shield sleeve, the wear band also being locked against movement in the longitudinal and rotational directions. The locking mechanism also can be used to fix a sleeve-type stabilizer on the tubular body.
Patent CA-2166288-C (CA)
Title: Modified solid oxide catalyst and process for producing same
Inventor: CHANG CLARENCE DAYTON
IPC: C01G41/00
Filed: 1994-07-13
Granted: 2005-05-17
Abstract: A catalyst comprises a hydrogenation/dehydrogenation component, such as a noble metal, deposited on an acidic solid product formed by modifying a Group IVB metal oxide with an oxyanion of a Group VIB metal. An example of this catalyst is platinum deposited on zirconia modified with tungstate. The catalyst may be used, for example, to isomerize C4 to C8 paraffins.
Patent CA-2170601-C (CA)
Title: Variable concentration, solid chemical dispenser
Inventor: COPELAND JAMES L
IPC: B01F3/08
Filed: 1994-09-21
Granted: 2004-01-13
Abstract: Disclosed is a dispenser (10) for a solid chemical (13) and a method of dispensing the chemical (13). Water enters via an inlet line (22) and is sprayed from a spray nozzle (21), so that the solid chemical (13) is dispensed in the form of an aqueous chemical solution via outlet line (17). The solution's concentration is adjustable by varying the distance between the spray nozzle (21) and the exposed dissolving surface of the chemical (13). A pair of cam members (50, 51) adjust the vertical position of the solid chemical (13) with respect to the spray nozzle (21). In a preferred embodiment, a visual indication of the concentration settings is provided, with the concentration settings corresponding to the nozzle-to-eroding surface distance.
Patent CA-2171963-C (CA)
Inventor: SCHEHLMANN VOLKER
IPC: C08B37/00
Filed: 1994-09-07
Granted: 2004-11-23
Abstract: L'invention concerne des esters de dextrane ayant une masse molaire comprise entre 10.000 et 10.000.000 et des chaînes latérales ester, dérivées d'acides ayant entre 6 et 18 atomes de C. Le degré d'estérification est ajusté, en fonction du nombre d'atomes de C des chaînes latérales et de la masse molaire, à une valeur comprise entre 0,04 et 1,1, de manière à ce que les esters de dextrane soient insolubles dans l'eau à température ambiante et soient décomposés par les bactéries du gros intestin. L'invention concerne en outre leur utilisation pour enrober et/ou encapsuler des principes actifs médicinaux ou des préparations médicamenteuses.
Patent CA-2172225-C (CA)
Title: Optical sheet and a light transmission screen using the same
Inventor: MITANI KATSUAKI
IPC: G03B21/62
Filed: 1996-03-20
Granted: 2001-08-14
Abstract: The present invention provides a bright light transmission screen and light diffusion panel.  Am amtireflective film is disposed on the surface of a lenticular lens sheet substrate included in a light transmission screen.  The antireflective film is made from a high polymer compound of a low refractory index and has a thickness that is different from .lambda./(4n).  The antireflective film may also be disposed on a Fresnel lens sheet substrate or a light diffusion panel substrate.
Patent CA-2173249-C (CA)
Title: Systeme d'entree de donnees
Inventor: CALLAGHAN JOHN FRANCIS
IPC: G06Q30/06
Filed: 1994-09-27
Granted: 2010-03-09
Abstract: Un système d'entrée de données comprend une unité d'entrée de données tenue à la main dotée d'un capteur de lecture destiné à lire des commandes et/ou des données, d'une mémoire à système de réécriture destinée à stocker les informations se rapportant aux articles susceptibles d'être choisis, d'un contrôleur (un microprocesseur ou d'autres circuits de traitement), d'un écran destiné à afficher une représentation lisible pour l'utilisateur des commandes qu'il passe et/ou des informations en mémoire concernant un article choisi, ainsi que d'une interface de télécommunications permettant la transmission téléphonique, vers un centre de traitement à distance, des informations se rapportant à l'article ou aux articles choisi(s) dans la mémoire, ainsi que la transmission téléphonique, depuis ce centre de traitement à distance et vers la mémoire, des informations se rapportant aux articles susceptibles d'être choisis. De préférence, l'unité d'entrée tenue à la main est dotée d'une interface de télécommunications adaptée aux systèmes de téléphonie cellulaire ou d'autres systèmes de téléphones sans fils. Cette unité d'entrée peut être configurée pour combiner les fonctions d'entrée de données avec celles de la téléphonie par radiocommunication.
Patent CA-2175104-C (CA)
Inventor: LEWIS JOHN C JR
IPC: A46B9/00
Filed: 1996-04-26
Granted: 1999-02-23
Abstract: The improved method of fusing synthetic monofilament tufts to synthetic sponge material is disclosed whereby the filament tufts are set into a container-like molded base component which allows for greater support within the flexible cellular structure of conventional cellulose and polyurethane spongeware compositions thus resulting in greater resistance to tuft removal.
Patent CA-2175375-C (CA)
Inventor: SCHULTHESS ADRIAN
IPC: C12P19/26
Filed: 1994-11-17
Granted: 2010-01-05
Abstract: L'invention concerne des .beta.(1?6) disaccharides de glucosamine de formule générale (I) ainsi qu'un procédé qui permet de préparer ces disaccharides, et consiste à: i) fournir une matière de départ comprenant la fraction lipidique A de micro-organismes comprenant des lipopolysaccharides; ii) soumettre cette matière de départ à un traitement alcalin tel que la fraction lipidique A est O-déacylatée aux positions 3 et 3'. L'invention concerne aussi des compositions pharmaceutiques comprenant des dissacharides en tant qu'ingrédient actif, et ces dissacharides destinés à être utilisés comme agent immuno-modulateur ou anti-tumoral, ou comme composant de vaccin.
Patent CA-2177044-C (CA)
Inventor: FLYNN GARY A
IPC: C07D471/04
Filed: 1994-10-20
Granted: 1999-06-01
Abstract: La présente invention concerne un nouveau procédé énantiospécifique pour préparer un ester de méthyle d'acide (S)-1-[2(S)-(1,3-dihydro-1,3-dioxo-isoindo-2-yl)-1-oxo-3-phénylpropyle]-1,2,3,4-tétrahydro-2-pyridine-carboxylique, qui est un intermédiaire utile dans la préparation de l'acide [4S-[4.alpha., 7.alpha.(R*), 12b.beta.]]-7-[(1-oxo-2(S)-thio-3-phénylpropyle)amino]-1,2,3,4,6,7,8,12b-octahydro-6-oxo-pyrido[2,1-a][2]benzazépine-4-carboxylique, et de l'acide [4S-[4.alpha., 7.alpha.(R*), 12b.beta.]]-7-[(1-oxo-2(S)-acétylthio-3-phénylpropyle)amino]-1,2,3,4,6,7,8,12b-octahydro-6-oxopyrido[2,1-a][2]benzazépine-4-carboxylique, et les sels pharmaceutiquement acceptable de ces derniers. Ces produits sont utiles pour inhiber l'enképhalinase et l'enzyme de conversion de l'angiotensine. L'invention traite aussi de nouveaux intermédiaires de ces produits.
Patent CA-2177137-C (CA)
Title: Memory efficient method and apparatus for sync detection
Inventor: LO TSAI
IPC: H04N5/44
Filed: 1994-12-05
Granted: 2004-04-06
Abstract: A receiver (79) is provided for receiving a digital data stream over a communication path. The digital data is arranged as a sequence of frames, each frame including a plurality of lines of data. The beginning of each frame is indicated by a frame synchronization word (42); the beginning of each line is indicated by a horizontal synchronization byte (46). The data is interleaved by an encoder (162) prior to transmission.  The decoder (79-82, 84, 86, 88) contains circuitry (92) for locating the horizontal and frame synchronization data and contains circuitry (96) for deinterleaving the digital data. Both the synchronization locating circuitry and deinterleaving circuitry require access to a memory (86), but not at the same time. Therefore, a single memory is used with the synchronization recovery circuitry and deinterleaving circuitry alternatively addressing the memory.
Patent CA-2183032-C (CA)
Inventor: HRUSCHAK LAWRENCE ALEXANDER
IPC: B21C37/06
Filed: 1996-08-09
Granted: 2001-07-17
Abstract: A method  for making  slots  in metal  pipe  and,  in particular, slots less than 15 thousandths of an inch in width. Firstly, providing a metal pipe having an exterior surface and an interior surface which defines an axially extending interior bore.  Secondly, cutting an axially extending elongate slot having a width that is larger than desired in the pipe with a cutting tool.   The slot extends through the pipe providing fluid communication from the exterior surface to the interior surface. The slot has longitudinal peripheral edges. Thirdly, applying pressure to the exterior surface of the pipe along at least one of the longitudinal peripheral edges of the slot until the metal pipe is deformed sufficiently to close the slot to a desired width.
Patent CA-2183308-C (CA)
Title: A sealing and venting component for an apparatus which generates an internal gas
Inventor: CERNY DAVID ELMER
IPC: B01J23/42
Filed: 1996-08-14
Granted: 2008-09-30
Abstract: A disinfection apparatus including a container; a cap having an article- retaining means, a sealing means and a catalytic element-retaining means affixed thereto; and a catalytic element. The disinfection apparatus has particular utility in the disinfection of contact lenses with hydrogen peroxide solutions. Also disclosed are venting and sealing components, catalytic elements, molded article-retaining assemblies, and catalytic element formation methods.
Patent CA-2199266-C (CA)
Inventor: SCHELIN ANDREAS
IPC: C02F1/40
Filed: 1996-07-04
Granted: 2000-12-12
Abstract: Cette invention décrit un dispositif servant à la séparation de l'huile des impuretés contenant de l'eau dans les installations de traitement des déchets industriels, les bateaux, etc. Ce dispositif est constitué d'un réservoir de séparation d'huile (I) de forme conique vers le haut, pourvu d'une entrée (1) et d'une sortie (2). Sa partie inférieure est pourvue d'un dispositif d'aération constitué de tuyaux perforés, et sa partie supérieure est pourvue de plaques d'agitation (6). On introduit l'eau brute (3') contenant l'huile (3') et les particules légères par l'entrée (1) du réservoir (I), dans lequel l'huile (3") et les particules sont soulevées jusqu'à la surface par l'addition de bulles d'air provenant du dispositif d'aération (4 et 5). La masse flottante est ensuite chassée par le tuyau de sortie de l'huile (7), alors que l'eau purifiée (8) est acheminée par le tuyau de sortie (2). L'entrée (1) et la sortie (2) sont pourvues d'un dispositif de régulation du niveau ou d'un indicateur de niveau.
Patent CA-2201085-C (CA)
Inventor: TSUDA HIROKI
IPC: H04W84/06
Filed: 1997-03-26
Granted: 2002-11-05
Abstract: A mobile station comprises a power detector, an averaging circuit, and a signal fade detector.  The power detector measures a channel signal power (receive signal power) of a receive signal received by a receiver.  The averaging circuit averages the receive signal power measured by the power detector.  The signal fade detector detects the fade of the channel signal power with the average of the receive signal power.  When the fade of the receive signal is detected, while a call request or a call response is being transmitted, after the receive signal power is recovered, a control circuit of the mobile station re-transmits the call request or the call response.  When the fade of the receive signal is detected just before a call request or a call response is transmitted, the control circuit of the mobile station stops transmitting the call request or the call response.  After the receive signal power is recovered, the control circuit of the mobile station transmits the call request or the call response.
Patent CA-2201982-C (CA)
Title: Structure stabilization system
Inventor: GARZA-TAMEZ FEDERICO
IPC: E02D27/34
Filed: 1997-04-07
Granted: 2005-10-18
Abstract: A stabilization system protects a structure, comprising at least a slab and having a foundation formed in the earth, from the effects of seismic disturbances. Pendulum support elements, secured at upper ends to respective support columns affixed to the foundation and at lower ends to support positions of the slab, support the slab while permitting limited relative movement between the slab and the support columns in the event of a seismic disturbance. A damping system connects the slab to the foundation to impede action of forces tending to produce relative rotation between the slab and the foundation and to provide damped control of relative linear displacements therebetween. A level monitoring system monitors the respective levels of monitoring positions displaced about the slab and detects differential changes in the levels at the monitoring positions, the rods being adjustable to correct for such differential changes and thereby to reestablish a common level condition at all monitoring positions.
Patent CA-2203167-C (CA)
Title: Furnace superheater and a fluidized bed reactor provided with a furnace superheater
Inventor: JAENTTI PERTTI
IPC: F28F1/22
Filed: 1995-10-23
Granted: 2001-02-27
Abstract: The present invention relates to a furnace superheater having a number of tube elements arranged relative to each other in such a way that they form a planar surface and in which the tube elements are mechanically arranged. The superheater elements are preferably rectangular of their cross-sectional profile and they are attached to each other by means of a groove or the like and a protrusion or the like which have a substantially similar profile. The present invention also relates to a circulating bed reactor provided with a furnace superheater.
Patent CA-2208176-C (CA)
Title: Personal telephone agent
Inventor: TERVEEN LOREN GILBERT
IPC: H04M1/64
Filed: 1997-06-18
Granted: 2000-10-31
Abstract: A personal telephone messaging agent can automate routine scheduling, coordinating and information gathering tasks while maintaining the advantages inherent in the telephone system.  A person specifies a message and, optionally, some specific questions, and a list of recipients to his or her personal messaging agent.  The messaging agent delivers the message to and collects a response from each messaging recipient using the telephone system.  When each intended recipient has been reached, the agent contacts the sender to report the results or, optionally, the agent could undertake routine tasks such as scheduling a meeting based upon the responses and assigning a conference room for the meeting.    An even more sophisticated personal telephone agent may be employed in the context of an information retrieval service.  An IVR system has an interface designed for people to use.  However, the databases of information that an IVR system draws upon could be accessed over the telephone network by an automated agent using an interface designed for agent access.  In this way, a messaging agent can be used to retrieve the desired information and report back to the caller. The personal telephone messaging system of the present invention can be applied to tasks such as scheduling a meeting, confirming a decision, determining the price of an item, and finding flight information.
Patent CA-2210763-C (CA)
Title: Key generation from a given string for entity authentication
Inventor: KOU WEIDONG
IPC: H04L9/06
Filed: 1997-07-17
Granted: 2000-02-29
Abstract: The invention provides a scheme for generating a symmetric encryption key for a given character string, such as a password or an alphanumeric. There is no limitation on the length or content of the given character string. The character string is converted to a bitstream using a standard character encoding scheme, such as ASCII. The bitstream is then subjected to combinations of bitstream processing operations over multiple rounds. The bitstream processing operations can include splitting the bitstream into multiple sub-bitstreams, reordering and shuffling the sub-bitstreams, performing logical bit-wise operations on the sub-bitstreams, performing one-way hashing on the sub-bitstreams, and combining the multiple sub-bitstreams back into a single bitstream through logical bit-wise operations on the sub-bitstreams. Prior to converting the character string into a bitstream, the given character string may be optionally combined with an initialization character string (for example, an initialization string associated with a particular processor), and it is the combined character string that is then encoded and used for generating an encryption key. Applying the combination rounds of the bitstream processes multiple times, for example sixteen times, will result in a strong key for encryption.
Patent CA-2210844-C (CA)
Inventor: FLAT JEAN-JACQUES
IPC: B05D7/14
Filed: 1997-07-29
Granted: 2001-04-17
Abstract: Coated metallic surface comprises, successively from metal, at least one layer of polyurethane; and at least one layer of thermoplastic polymer; with a binder between the two layers. Also claimed is method for coating surface and device comprising bundle of steel strands with the coating.