baber/WOPTO huggingface dataset:
Patent CA-2255193-A1 (CA)
Title: Method and apparatus for diode-laser imaging with compensation for output variations
Inventor: SOUSA JOHN GARY
IPC: B41C1/05
Filed: 1998-12-02
Abstract: Compensation for the effects of duty cycle on the output level of an imaging device, and for the effects of periodically varying distance between the output of the imaging device and its target, is accomplished electronically. An exemplary apparatus includes a source of radiation (generally a laser) having an output level that varies both with an input power level and, undesirably, with the duty cycle. The apparatus also includes means for focusing the radiation onto a recording surface, and a power supply for driving the radiation source. In the case of a diode laser, the power supply delivers a variable current, the magnitude of which determines the power output of the laser. The radiation source is operated to produce, on the recording surface, an imagewise pattern of spots, and an adjustment facility alters the output of the power supply to compensate for output-level variations resulting from duty cycle-that is, from the recent pattern of laser activity. In a first embodiment, the invention includes an up-down counter that receives, as input, the same binary image data in serial form that is used to determine the state of the radiation source as it scans over a recording medium (causing actuation of the source only when adjacent to a location on the recording medium that is to be written). The counter increments during clock cycles when the radiation source is active, and decrements during inactive cycles. As a result, the state of the counter generally reflects the recent pattern of radiation-source activity, and its contents are used to address a list of correction values. In a second embodiment, serial image data is applied to a shift register rather than a counter. This provides a more precise record of the pattern of recent activity, and the instantaneous contents of the register are once again used to address a list of correction values. To compensate for the effects eccentric rotation on the output level of an imaging device, a function that inverts or at least counteracts the resulting power variations is applied to the power supply operating the radiation source.
Patent CA-2255913-A1 (CA)
Inventor: LIN TIEN-SUNG TOM
IPC: B82B1/00
Filed: 1997-05-26
Abstract: The invention relates to the use of carboxylated buckminsterfullerenes in the control or treatment of neurotoxic injury.
Patent CA-2258648-A1 (CA)
Title: A system, method and article of manufacture for managing transactions in a high availability system
Inventor: BERGER DAVID A
IPC: G06Q20/00
Filed: 1997-06-17
Abstract: An architecture is disclosed allowing a server to communicate bidirectionally with a gateway over a first communication link, over which service requests are initiated by the server. In response to a transaction received from a host legacy system at the gateway, the gateway parses one or more transaction response values from the host message, maps the one or more transaction response values to a canonical response code, and stores the canonical response code in a transaction log. According to a broad aspect of a preferred embodiment of the invention, communication networks that employ transactions between applications must effectively manage transactions that flow over the network. In addition, networking systems must also detect counterfeit transactions, especially, when the networking systems are utilized for financial transactions. An active, on-line database is utilized as a transaction log to track original requests, valid retrys and detect fraudulent transactions. The transaction log serves as a memory cache where the received host response is returned to a valid retry transaction should the original response fail to reach a server because of a communications problem.
Patent CA-2259597-A1 (CA)
Title: Cold sealable cohesive polymers
Inventor: TOUHSAENT ROBERT EDWARD
IPC: C08L33/02
Filed: 1996-07-09
Abstract: An adhesive coating which is pressure sealable to itself and non-blocking to a dissimilar coating is described. The coating comprises a blend of (a) a soft polymer having a measured glass transition temperature below room temperature;  and (b) a hard polymer having a measured glass transition temperature which is above the measured glass transition temperature of the soft polymer (a). The soft polymer and the hard polymer are combined in a low blocking, pressure sealable coating formable proportion. A method of making the adhesive coating comprising the step of blending the soft polymer and the hard polymer and coated substrates formed from the adhesive coating are also described.
Patent CA-2259852-A1 (CA)
Inventor: CONNELL MICHAEL L
IPC: E21B47/04
Filed: 1999-01-21
Abstract: Un localisateur sans fil de joints de raccord sur un tubage enroulé, pour localiser les joints ou les colliers dans une chaîne de tubage en production. Le localisateur de joints est adapté pour fonctionner dans un puits sur un tubage enroulé, et d'autres outils de puits peuvent être connectés au localisateur de joints. Une bobine électromagnétique détecte l'accroissement de masse à un joint de conduit et émet un signal vers un circuit électrique qui génère à son tour un signal destiné à une vanne électromagnétique pilote. La vanne électromagnétique ouvre momentanément une voie pilote qui active un piston fermant un port de circulation dans le localisateur de joint. La fermeture de cet orifice de circulation provoque une augmentation de la pression mesurée à la surface par l'opérateur. Un disque de rupture est prévu pour que la pression ne puisse pas être appliquée à un outil de fond de puits sous le localisateur de joints de manière prématurée. Un manchon de scellement empêche la circulation prématurée du fluide vers le disque de rupture mais peut être ouvert en laissant tomber une bille dans le localisateur de joints. Le circuit électronique peut être configuré de manière à établir l'un de nombreux délais temporels possibles. Le circuit prévoit aussi une période déterminée pour un test, et retarde l'activation du délai pour que le localisateur de joint puisse être mis à l'essai avant son déploiement dans le puits. Le circuit électrique et l'alimentation sont fournis dans un boîtier amovible pour faciliter le remplacement et la reconfiguration.
Patent CA-2260498-A1 (CA)
Title: Material for gas turbine disk
Inventor: MAGOSHI RYOTARO
IPC: C22C38/48
Filed: 1999-01-27
Abstract: A material for a gas turbine disk comprises 0.05 to 0.15 wt% of carbon, 0. 10 wt% or less of silicon, 0.40 wt% or less of manganese, 9.0 to 12.0 wt% of chromium, 1.0 to 3.5 wt% of nickel, 0.50 to 0.90 wt% of molybdenum, 1.0 to 2.0 wt% of tungsten, 0.10 to 0.30 wt% of vanadium, 0.01 to 0.10 wt% of niobium, 0.01 to 0.05 wt% of nitrogen, and a remainder comprising iron and unavoidable impurities, wherein the contents of nickel, molybdenum and tungsten satisfy a relationship -1.5 wt% ~ Mo+W/2-Ni ~0.7 wt%. Accordingly, unlike conventional gas turbine disk materials such as a heat resisting steel of 12Cr-type which can be used in an operation at about 400°C, but has reduced toughness and high-temperature creep characteristics in an operation at about 500°C, this material is allowed to nave a satisfactory toughness and excellent high-temperature creep characteristics and can be suitably used at high temperatures.
Patent CA-2262856-A1 (CA)
Title: Stain receiver for dry cleaning process
Inventor: YOUNG TERRILL ALAN
IPC: C11D17/04
Filed: 1997-07-25
Abstract: The present invention encompasses a stain receiver article and its use in a fabric cleaning process. The invention also encompasses a kit, comprising: (a) an aqueous fabric cleaning/refreshment composition which is, optionally, releasably contained on carrier substrate; a re-usable, preferably vaporventing, containment bag; a stain receiver article according to this invention; optionally, but preferably, a fabric cleaning device, as disclosed herein; optionally, a re-usable holding tray; and optionally, a non-aqueous cleaning composition. The invention also encompasses the stain receiver article, itself.
Patent CA-2264248-A1 (CA)
Title: Procede d'assemblage d'un module optique
Inventor: AMBROSY ANTON
IPC: G02B6/24
Filed: 1999-03-22
Abstract: L'invention se rapporte à un procédé d'assemblage d'un module optique comprenant au moins deux composants optiques (30 et 6) dont les guides d'onde (3 et 7) sont optiquement couplés l'un à l'autre. Le positionnement d'un guide d'onde (3) par rapport à l'autre (7) utilise deux surfaces de contact (8 et 9) prévues respectivement sur chaque composant optique (30 et 6) et coopérant entre elles. Le procédé d'assemblage selon l'invention est plus particulièrement caractérisé en ce qu'une première surface de contact (8) comporte un plan d'appui vertical (8a) placé dans le même plan horizontal que l'axe optique (A3) du guide d'onde (3) de l'un des composants optiques, et en ce qu'une deuxième surface de contact (9) comporte un plan d'appui vertical (9a) placé dans le même plan horizontal que l'axe optique (A7) du guide d'onde (7) de l'autre composant optique.
Patent CA-2264762-A1 (CA)
Inventor: LORENZ ROBINNA
IPC: G01N33/53
Filed: 1997-08-29
Abstract: A method for localizing and quantitating a target substance in a biological sample is disclosed. The method utilizes an enzyme-linked probe that binds to the target substance and generates a depositable photoluminescent substance which detects position and a soluble photoluminescent substance which allows quantitation in the medium bathing the sample.
Patent CA-2265516-A1 (CA)
Inventor: KLUFT CORNELIS
IPC: G01N33/15
Filed: 1996-09-06
Abstract: A method for screening for negative side effects of a sex steroid compound or composition in a subject, by carrying out an assay on the subject or on a sample derived from the subject determining whether an increase of the compound or composition on the level of an acute phase reactant or a metabolic derivative thereof has occurred since applying the compound or composition to the subject, said acute phase reactant being selected from the group consisting of positive Acute Phase Reactants (APRs) with the exclusion of ceruloplasmin and coagulation/thrombosis associated factors, whereby an increase in the level of the acute phase reactant is indicative of negative side effects. A sex steroid compound or composition characterised by a lower increase in APR level as determined in a manner according to the invention than a third generation oral contraceptive, said compound or composition not being a second generation oral contraceptive.
Patent CA-2266830-A1 (CA)
Title: Orthopaedic bone plate
Inventor: PRICE GREGORY G
IPC: A61B17/80
Filed: 1999-03-19
Abstract: An orthopaedic bone plate is coupled to a bone having an enlarged head at one end thereof which is attached to a shaft. The bone plate includes an elongate portion, a flared portion and an intermediate portion. The elongate portion is attachable to the bone shaft using a plurality of bone screws. The elongate portion generally defines a longitudinal axis. The flared portion is attachable to the bone head using at least one bone screw. The intermediate portion interconnects the elongate portion and the flared portion. The intermediate portion is structured and arranged to allow the elongate portion and the flared portion to move relative to each other in a direction transverse to the longitudinal axis when the elongate portion and the flared portion are attached to the bone.
Patent CA-2268975-A1 (CA)
Inventor: MANO HIROSHI
IPC: H04J13/00
Filed: 1998-02-17
Abstract: The radio communication apparatus (10) comprises a buffer (14) which temporarily stores data to be sent, a transmission/receiving circuit (12) having a data transmission circuit (30) and a data receiving circuit (40).      The data transmission circuit (30) includes an input processor (41) which generates, when transmitting the data, a preamble to output it to a QPSK modulator (42), thereafter reads from the buffer (14) a data row of 256 bits and outputs it to the QPSK modulator (42). Accordingly, the transmission circuit (30) is constituted such that the data sets each including the preamble and the data row are repeatedly transmitted. On the other hand, the receiving circuit (40) includes a DMF (86) which accomplishes acquisition using a portion in the received data corresponding to the preamble.
Patent CA-2269572-A1 (CA)
Title: Game machine, operating unit for game machine, game system, and two-way communication method for game machine
Inventor: SHINOHARA SATOSHI
IPC: A63F13/30
Filed: 1998-08-24
Abstract: A two-way communication method for game machines, wherein: the function of an operating unit (CT10) for a game machine required by a game machine body (27) is retrieved by transmitting information representing the function of the unit (CT10) prestored therein to the game machine body (27) according to a command from the game machine body (27); the retrieved function can be set in the unit (CT10); response means (21, 51) of the operating unit (CT10) required for the game machine body (27) and the power fed thereto are determined by transmitting function information representing the power consumption of the response means (21, 51) and prestored therein to the game machine body (27) according to a command from the game machine body (27); and the determined information can be set in the response means (21, 51).
Patent CA-2271311-A1 (CA)
Title: Method and apparatus for providing prepaid telecommunications services
Inventor: LESLEY ULF
IPC: H04Q3/00
Filed: 1997-11-04
Abstract: A communications network-based solution is provided that facilitates both prepayment and use of prepay telecommunications services. A subscriber is assigned a record in a network database. The database record includes an account number and an associated prepaid monetary value. If the prepaid monetary value in the subscriber's record is sufficient for the requested service, the service is authorized. The prepaid monetary value in the subscriber's record is decreased in accordance with the service rendered. The subscriber also easily adds monetary value to the subscriber's prepaid account by accessing the prepaid network service (e.g., by dialing the appropriate network service number), indicating the desire to add monetary value to the subscriber's prepaid account in the database.
Patent CA-2274687-A1 (CA)
Title: Process for preparing particles covered with a layer of water glass and articles comprising such covered particles
Inventor: HUUSMAN OLE
IPC: B22C1/00
Filed: 1997-12-17
Abstract: The invention relates to a process for preparing free flowing particles covered with a layer of water glass, comprising the steps of: (a) providing a mixture containing particles to be covered, water and 0.1-5 % by weight water glass, calculated on the basis of the weight of the particles, the water glass being dissolved in said mixture, and (b) stirring the mixture mechanically, optionally by supplying heat from an extern heat source, and permitting the water to evaporate from the mixture until at least so much water is evaporated that said mixture is no longer sticky. Furthermore, the invention relates to a process for preparing an article with a detailed surface.
Patent CA-2275309-A1 (CA)
Inventor: HAENEL MATTHIAS W
IPC: C07B61/00
Filed: 1997-12-09
Abstract: L'invention concerne la production de nouveaux catalyseurs constitués de composés de métaux de transition et de ligands tridentés de 4,5-diphosphinoacridine ("acriphos"). Les nouveaux ligands utilisés à cet effet sont des composés diphosphiniques de l'acridine 4,5-disubstituée, qui assurent la tri-coordination des métaux de transition avec les deux atomes de phosphore et l'atome azoté d'acridine. L'invention concerne également l'utilisation de ces nouveaux catalyseurs pour la catalyse de la conversion du monoxyde de carbone par l'intermédiaire de l'équilibre eau-gaz (WGSR:CO+H¿2?O=CO¿2?+H¿2?), ainsi que pour la catalyse des réactions suivantes: hydroformylation, carbonylation, carboxylation, hydrogénation, hydrocyanuration, hydrosilylation, polymérisation, isomérisation, couplage croisé et métathèse. L'invention concerne d'autre part les synthèses des 4,5-diphosphinoacridines par la réaction de 4,5-difluoroacridine avec des phosphures de métaux alcalins R¿2?P?-¿ M?+¿(M?+¿ = Li?+¿, Na?+¿, K?+¿, Rb?+¿, Cs?+¿, de préférence K?+¿) ou bien par la réaction de 4,5-dibromoacridine avec des chlorophosphines (R¿2?PCl) et du magnésium, ainsi que la préparation de la 4,5-difluoroacridine et de la 4,5-dibromoacridine qui étaientt inconnues auparavant.
Patent CA-2276873-A1 (CA)
Title: Oil coating apparatus
Inventor: MOTOYOSHI YOSHIYUKI
IPC: G03G15/20
Filed: 1999-07-02
Abstract: An oil coating roller comprising a porous round-rod-like molded product, a heat-resistant fiber felt layer provided on an outer circumference of the porous round-rod-like molded product, and a porous film applied onto an outer circumference of the felt layer. The porous round-rod-like molded product contains heat-resistant fibers bound to each other by a binder, and has fine communicating voids free from the binder among the fibers and evenly distributed pores having a pore size in a range of from 0.05 to 2 mm and a total void percentage in a range of from 30 to 90 %. The porous round-rod-like molded product is impregnated with silicone oil. The heat-resistant fiber felt layer has a thickness in a range of from 0.5 to 5 mm. The porous film has a thickness in a range of from 15 to 130 µm, a mean pore size in a range of from 0.1 to 3.0 µm, a porosity in a range of from 60 to 90 % and an air permeability in a range of from 3 to 1500 sec per 100 cc.
Patent CA-2277030-A1 (CA)
Title: Fire-resistant polymer formulations
Inventor: DANIELS CLARE
IPC: C08K3/00
Filed: 1998-01-07
Abstract: In PVC polymer formulations for sheathing for electric wires and cables, it has been determined that antimony trioxide and divalent metal (e.g. zinc) stannate or hydroxystannate can provide a synergistic flame-retardant additive combination. In this invention, polymer formulations using this flame-retardant additive combination contain not more than 1.5 wt% of antimony trioxide.
Patent CA-2277295-A1 (CA)
Inventor: MORRELL DENNIS G
IPC: C07C2/06
Filed: 1998-01-07
Abstract: On utilise des acides solides d'oxydes de métaux en tant que catalyseurs servant à la polymérisation d'un flux d'alimentation contenant au moins un monomère pur (par exemple des monomères à base de styrène), des monomères C5 et des monomères C9, afin de produire des résines d'hydrocarbure. On peut enlever du catalyseur acide solide l'eau associée librement à celui-ci, avant utilisation du catalyseur. On peut préparer des résines à points de ramollissement (déterminés par la méthode bille et anneau) se situant dans la plage comprise entre environ 5 et 170 ·C. Ces catalyseurs présentent des avantages sur les catalyseurs classiques de polymérisation de Friedel-Crafts, et ce que leurs sites acides font partie intégrante du solide. Ces catalyseurs acides solides sont relativement non dangereux et réutilisables, et ils permettent de supprimer ou au moins de diminuer la contamination des produits résineux résultants par des restes acides ou des sous-produits.
Patent CA-2278611-A1 (CA)
Title: Actionneur de frein a membrane a centrage automatique
Inventor: PLANTAN RONALD S
IPC: F01B19/00
Filed: 1998-01-15
Abstract: L'invention concerne des actionneurs de frein à membrane (44) à centrage automatique. Dans un mode de réalisation, la membrane (44) présente un bourrelet de centrage (52) disposé radialement à l'extérieur d'un bourrelet d'étanchéité (50). Le bourrelet de centrage (52) assure le centrage correct de la membrane (44) avant que les boîtiers (42, 46) de l'actionneur de frein ne soient fixés ensemble. Dans un second mode de réalisation, la structure (50) de centrage automatique comprend un ajustement de structure dans une structure d'appariement (56) dans un des boîtiers de l'actionneur de frein destiné à assurer le centrage correct de la membrane (44). La structure (50) de centrage automatique assure que les membranes de l'actionneur de frein sont centrées correctement avant le raccordement des deux boîtiers (42, 46) de l'actionneur de frein. Cette invention est particulièrement utile dans le type de boîtiers d'actionneur de frein présentant des parties déformées.
Patent CA-2281916-A1 (CA)
Title: Process to prepare a pentenoic acid derivative
Inventor: OEVERING HENK
IPC: C07C69/353
Filed: 1998-01-22
Abstract: Process for the preparation of an alkyl pentenoate respectively an aryl pentenoate by contacting an alkoxy-butene respectively an aryloxy-butene compound with carbon monoxide in the presence of a catalyst system comprising palladium, a phosphorus ligand and an acid promotor, wherein the molar ratio of 3-alkoxy-1-butene to 1-alkoxy-2-butene, respectively the molar ratio of 3aryloxy-1-butene to 1-aryloxy-2-butene, is higher than 4.
Patent CA-2282939-A1 (CA)
Title: Optical equalizer
Inventor: KING JONATHAN PAUL
IPC: G02B6/12
Filed: 1999-09-21
Abstract: An optical equaliser comprises a plurality of serially concatenated filter elements the phase and modulation depth of which can be individually tuned. The filter elements are tuneable in order to generate a desired optical equalisation function. Each of the filter elements is a three arm interferometer and each is fabricated utilising integrated waveguide technology.
Patent CA-2283874-A1 (CA)
Inventor: COORY FREDRICK MICHAEL
IPC: B65D81/32
Filed: 1998-03-12
Abstract: A cap (103) for a container (2) where a drink, made of two components, can be stored or carried with the components stored separately. The components are mixed prior to the consumption of the drink. The cap (103) includes a collar (106) secured to the container (2) and a top (105) which is in two parts. The top (105) is moveable between an open and a closed position. When the top (105) is initially in the open position, a basket (117) between the top (105) and the liquid initially holds the material (138), which can be a powder or tablet. The top (105) is initially closed to release the seal between the liquid and the material, the drink is shaken, and the top (105) reopened for a passageway from the liquid to the exterior of the cap (103). A cover 4 is releasably secured over the cap (103).
Patent CA-2283943-A1 (CA)
Title: Method and apparatus for compensating a line synchronous generator
Inventor: NICKOLADZE LEO G
IPC: H02K19/38
Filed: 1998-02-06
Abstract: A line synchronous generator with an exciter and generator stage. The exciter stage includes an exciter stator (28) and an exciter rotor (32), and the generator stage includes a generator stator (26) and generator rotor (34). In one embodiment, the stators are wound with primary windings for connection to an AC power source and the rotors are wound with secondary windings (Figure 2). In an alternative embodiment, the rotors are wound with primary windings for connection to the AC power source and the stators are wound with secondary windings (Figure 3). The proper phase angle alignment of the secondary windings are determined by connecting the primary windings of the exciter and generator stages to the AC power source, and connecting a secondary winding of the exciter stage to a secondary winding of the generator stage. The remaining open secondary leads are then tested for two pairs having a voltage equal to two times the line voltage, and two pairs having a voltage equal to .sqroot. 3 times the line voltage. The two pairs of open secondary leads having a voltage equal to two times the line voltage are connected together.
Patent CA-2284633-A1 (CA)
Inventor: DEVICO ANTHONY L
IPC: A61K38/00
Filed: 1998-03-26
Abstract: The present invention relates to therapeutic compositions and methods for treating and preventing infection by an immunodeficiency virus, particularly HIV infection, using chemokine proteins, nucleic acids and/or derivatives or analogues thereof.