baber/WOPTO huggingface dataset:
Patent CA-2253538-A1 (CA)
Title: Process for the electrochemical synthesis of n-acetylcysteine from cystine
Inventor: ALDAZ RIERA ANTONIO
IPC: C25B3/25
Filed: 1997-05-07
Abstract: The process comprises (A) obtaining N-acetylcysteine form L-cystine, through the following steps: (i) acetylation of L-cystine in order to produce N-acetylcystine; (ii) electroreduction and desalination by electrodialysis of N-acetylcystine thus produced in order to obtain N-acetylcysteine; (B) obtaining N-acetylcysteine from L-cystine, through the following steps: (i) acetylation and desalination of L-cystine in order to produce N-acetylcystine; (ii) electroreduction of N-acetylcystine proceeding or not from prior step (i), in order to produce N-acetylcysteine; (C) obtaining N-acetylcysteine from L-cystine through the following steps: (i) electroreduction of L-cystine in order to produce L-cysteine; (ii) acetylation and desalination by electrodialysis of L-cysteine, proceeding or not from prior step (i), in order to produce N-acetylcysteine. N-acetylcysteine thus obtained has important applications in the pharmaceutical sector.
Patent CA-2253896-A1 (CA)
Title: Use of polymeric shear agents to minimize variations in viscosity in medium-speed diesel engine lubricating oils
Inventor: LOGAN MARK REMMERS
IPC: C10M149/10
Filed: 1998-11-10
Abstract: Zinc-free medium-speed diesel engine lubricating oils containing a polymeric shear agent to minimize the variation in viscosity due to oxidation and soot thickening. The medium-speed diesel engine lubricating oil composition comprises:     (a) a major amount of a zinc-free baseline oil; and (b) a minor amount of a polymeric shear agent, which gives from 1.0 to 2.7 cSt at 100°C incremental increase in viscosity over that baseline oil; and wherein the medium-speed diesel engine lubricating oil composition meets the SAE 40 specification. The polymeric shear agents which may be used are those which can be dissolved in a mineral oil, such as ungrafted and grafted carbon-carbon polymers or copolymers.
Patent CA-2258083-A1 (CA)
Inventor: GUNSTAD MIKAEL
IPC: E01F9/08
Filed: 1997-07-02
Abstract: The present invention relates to a ribbon or strip for a parking garage or parking places. The invention is characterized in that it consists of strips (2) or ribbons of pleated sheet metal or plastic, painted on the upper side with a bright colour such as yellow, red or white.
Patent CA-2260932-A1 (CA)
Title: Motion video processing circuit for capture, playback and manipulation of digital motion video information on a computer
Inventor: KLINE MARK H
IPC: H04N7/26
Filed: 1997-07-25
Abstract: A digital motion video processing circuit can capture, playback and manipulate digital motion video information using the system memory of a computer as a data buffer for holding compressed video data from the circuit. The system memory may be accessed by the circuit over a standard bus. A controller in the circuit directs data flow between an input/output port which transfer a stream of pixel data and to the standard bus. The controller directs data to and from either the standard bus or the input/output port through processing circuitry for compression, decompression, scaling and buffering. The standard bus may be a peripheral component interconnect (PCI) bus. The motion video processing circuit has a data path including pixel data and timing data indicative of a size of an image defined by the pixel data. The timing data is used and/or generated by each component which processes the pixel data, thereby enabling each component to process the pixel data without prior knowledge of the image format. By having processors for handling two compression formats for motion video data connected to this data path, conversion between compression formats, such as between MPEG to Motion JPEG, can be performed.
Patent CA-2263088-A1 (CA)
Title: Pool of yeast of the genus candida maltosa used for the biodegradation of petroleum product pollutants, biological preparation obtained using this pool and methods for its preparation and application
Inventor: KUZNETSOV PETR ALEXANDROVICH
IPC: C12N1/26
Filed: 1998-02-02
Abstract: The present invention pertains to the field of bio-technologies and to the protection of the environment, and relates to the purification of water, soil and other media which have been contaminated by petroleum products. The purification method of the present invention uses a biological preparation that contains a pool of yeast of the Candida maltosa genus from the strains VKPM Y-2256 and Y-2257. These strains can be present in the pool in any proportion but preferably in a proportion of 1:1. The biological preparation may be used for removing pollution caused by a large variety of hydrocarbons contained in crude oil and petroleum products such as gas-oil, oils, etc. The preparation may be used to remove contaminants at temperatures up to +41 ~C, in conditions where the pH varies between 3.0 and 9.0 as well as in salt-containing ecosystems. The method for producing this biological preparation comprises simultaneously cultivating the above-mentioned yeast strains in a liquid nutrient medium and further separating and removing the biomass thus grown. The biomass can also be dried in order to obtain a powdered preparation. In order to clean the different media contaminated by petroleum products, this method comprises applying an aqueous suspension of said preparation with a nitrogen-phosphate additive.
Patent CA-2271315-A1 (CA)
Inventor: VAUGHAN GEORGE ALAN
IPC: C08F4/642
Filed: 1997-12-18
Abstract: The disclosed invention relates to a polymerization process comprising contacting ethylene, and optionally, one or more olefinically unsaturated comonomers, with an active supported Group 3 4, 5 or 6 metallocene catalyst system having an unsubstituted or substituted fused-ring cyclopentadienyl ligand, preferably indenyl or fluorenyl, and a substituted or unsubstituted cyclopentadienyl ligand under gas-phase or slurry polymerization conditions. The process is suitable for the production of high-density polyethylene homopolymers and copolymers. Additionally, the polymers made under the invention process conditions have narrow molecular weight distributions, low MI, and low values for MIR.
Patent CA-2271840-A1 (CA)
Inventor: LIOI PAUL R
IPC: F23D3/02
Filed: 1996-11-05
Abstract: A fuel cell (10) for use in warming or heating of food in a chafer dish, outdoor supplemental lighting, and emitting of insecticide. The fuel cell including a fuel holding cavity (12) with a lid (14) thereon, and a wick (24) submerged within the fuel and extending out of the lid (14) through a hole (54). The fuel cell further including a recess (36) in the base (26) for allowing stacking of fuel cells by receiving the wick (24) of an adjacent fuel cell during stacking. The recess (36) further used for receiving a support (300) when it is desirous to suspend the fuel cell in the air such as to provide supplemental outdoor lighting or the emission of insecticide. The fuel cell also including a stem-sleeve (16, 20) combination for supporting the wick (24) within the hole (54).
Patent CA-2272622-A1 (CA)
Title: Lid with knob for holding it
Inventor: RAOULT PHILIPPE
IPC: A47J36/06
Filed: 1996-12-04
Abstract: Disclosed is a cover (1) with a prehensile button (10), and connecting elements (1l, 21) designed to secure the button to the cover.      The connecting elements comprise at least one pin (11) and a slot (21), with a transit segment for the pin (11) to pass through the slot (21), as well as a segment where the pin (11) is retained in the slot (21). The pin is mobile between these two segments when the button and cover are shifted with respect to one another.
Patent CA-2273280-A1 (CA)
Title: Sampling apparatus, sampling method and method for cleaning sampling apparatus
Inventor: PURSIHEIMO PETRI
IPC: G01N1/20
Filed: 1997-12-09
Abstract: The object of the invention is a sampling apparatus in a continuous industrial process for taking a sample (16) of the substance to be monitored (11). The sampling apparatus is located on the wall (11) of the pulp tank and it includes a sample chamber (14), which is equipped with a cover (13), and a filter (15). The sample chamber includes a closing device (18, 24), by means of which the connection from the pulp tank to the sample chamber can be closed, as a result of which the filter remains in the sample chamber in the space between the cover and the closing device. The filter can be pulled out of the sample chamber for cleaning after the cover of the sample chamber has been opened. Another object of the invention is a sampling method and a cleaning method for the sampling apparatus presented.
Patent CA-2274021-A1 (CA)
Title: Respiratory aid
Inventor: BOUSSIGNAC GEORGES
IPC: A61M16/08
Filed: 1998-10-26
Abstract: The tubular respiratory assistance apparatus comprises a main channel linked by its distal end to the airway of a patient It also has at least one auxiliary channel associated with a deflector used for injecting a jet of respiratory gas into the main channel and then to ventilate the patient. On its distal side the tubular component is surrounded by an annular chamber which is connected to the patient's respiratory system via an orifice and has a branch linking the chamber's proximal end to the outside atmosphere. An Independent claim is also included for an assisted respiratory mask for application to the face of a patient comprising a nozzle for the inlet and outlet of the respiratory gas, and the apparatus is as above.
Patent CA-2277628-A1 (CA)
Inventor: COUSINS ANTHONY ROBERT
IPC: E21B33/035
Filed: 1999-07-19
Abstract: A system for tagging and monitoring subsea installations such as valves used in hydrocarbon production includes a torque tool provided with a read/write head for inductive interaction with a data storage capsule on a valve installation, the capsule storing valve identification and status data. When the torque tool is operatively engaged with the shaft (or an adaptor) of the valve, the read/write head inductively energizes the capsule and inductively receives identification data from the capsule, as well as operating data of previous operation, and this data is sent to a console in an ROV so as to ensure correct identification of the valve and proper subsequent operation by the tool.
Patent CA-2279405-A1 (CA)
Title: Procede de traitement physico-chimique d'effluents, notamment d'eaux de surface destinees a la consommation
Inventor: VION PATRICK
IPC: C02F1/52
Filed: 1998-01-26
Abstract: Procédé de traitement physico-chimique d'effluents, notamment d'eaux de surface destinées à la consommation comprenant les étapes successives de coagulation (A), floculation (B) et décantation (C), une masse de contact étant introduite dans l'eau issue de l'étape de coagulation, donc durant l'étape de floculation et cette masse de contact étant constituée par une partie des boues densifiées provenant de l'étape de décantation et recyclée dans l'étape de floculation, ce procédé étant caractérisé en ce que l'on injecte, dans le circuit de recirculation des boues (16) au moins une partie du polyélectrolyte assurant la floculation.
Patent CA-2283356-A1 (CA)
Title: Methods to diagnose a required regulation of trophoblast invasion
Inventor: CANIGGIA ISABELLA
IPC: C12Q1/68
Filed: 1998-03-05
Abstract: Methods are provided for the diagnosis and treatment of patients with increased risk of preeclampsia. The methods involve measuring levels of TGF-.beta.3, receptors of cytokines of the TG.beta. family, or HIF-1.alpha..
Patent CA-2284001-A1 (CA)
Title: Cytoprotective agents comprising monoamine oxidase inhibitors
Inventor: TIPTON KEITH
IPC: A61K33/243
Filed: 1998-03-13
Abstract: The present invention concerns the use of monoamine oxidase (MAO) inhibitors in the protection or rescue of normal cells from the toxic side effects caused by irradiation or the administration of chemotherapeutic agents such as certain anti-cancer agents. Deprenyl is a particularly preferred MAO inhibitor.
Patent CA-2284066-A1 (CA)
Inventor: PETERSON TODD C
IPC: G01N33/50
Filed: 1998-03-18
Abstract: The present invention relates to an integrated approach to drug screening that is designed to couple a screening assay both temporally and spatially to natural product synthesis in a microorganism. The present invention provides a screening unit which is a gel droplet comprising a producing species that produce natural products for the drug screen, and an assay system that detects or measures a desired biological activity. A producing species is coencapsulated with an assay system in a screening unit when the producing species is at a phase in its life cycle that is optimal for producing natural products, such as secondary metabolites. The producing species is spatially positioned relative to the assay system in the same unit such that compounds produced by the producing species can come into contact with the assay system.  If a compound possesses the desired activity, the assay system will generate a signal that enables the identification and/or isolation of the screening unit.  The present invention also provides methods for forming a screening unit, and methods for using a screening unit in drug screening. The methods are useful for screening naturally occurring organisms as well as genetically engineered cells, and solid carriers containing chemicals.
Patent CA-2286910-A1 (CA)
Title: Fluid specimen collecting and testing apparatus
Inventor: HARMISON BRIAN K
IPC: B01L3/00
Filed: 1998-02-25
Abstract: A device is provided for both collecting and testing a fluid specimen. The device includes a specimen container having a collection chamber, an isolation chamber and a test chamber. The collection chamber is in fluid communication with the isolation chamber and sealed from the test chamber. The isolation chamber is also sealed from the test chamber. The fluid specimen is collected in the collection chamber and an aliquot is isolated in the isolation chamber.  A fluid releasing element is provided to release fluid from the isolation chamber and establish a flow path to the test chamber while sealing the isolation chamber from the collection chamber. In accordance with another aspect of the present invention, the specimen container may include a tamper evident lid which provides an identification of whether or not the container has been opened which may indicate that the contents of the container have been compromised.
Patent CA-2287371-A1 (CA)
Title: Method of neutralizing protein allergens in natural rubber latex, products formed thereby, and articles manufactured therefrom
Inventor: TRAUTMAN JACK C
IPC: C08C1/04
Filed: 1998-04-24
Abstract: Disclosed is a method of treating natural rubber latex with protease and peptidase enzymes whereby protein allergens contained within the latex are degraded so as to be rendered non-allergenic to humans. The protein allergenfree natural rubber latex produced by the method and articles fabricated from the protein allergen-free product are also disclosed.
Patent CA-2287463-A1 (CA)
Inventor: HIRANO MUNEHIKO
IPC: A61K9/00
Filed: 1998-04-16
Abstract: A base composition for percutaneous absorption, which comprises a styrene/isoprene/styrene block copolymer, a softening agent, an adhesive resin and hexylene glycol; and a percutaneously absorbable preparation comprising the composition and a medicine.
Patent CA-2288056-A1 (CA)
Inventor: VARADHAN KANNAN
IPC: H04B7/26
Filed: 1999-10-29
Abstract: Local mobility within a subnet is supported by classifying wireless base stations, and the routers. used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain. The routing table entries are established and updated via path setup schemes to convey packets destined for the mobile device along the proper established path through the domain routers and base stations, regardless of the domain base station through which the mobile device is attached. Path setup schemes utilize power up, refresh, and handoff path setup messages to maintain the proper relationship between router interfaces and packet addresses for routing table entries.
Patent CA-2288348-A1 (CA)
Title: Recombinant fusion proteines based on bacterial adhesines for diagnostic assays
Inventor: AYALA AVILA MARTA
IPC: C07K14/16
Filed: 1998-04-27
Abstract: The present invention relates to the field of biotechnology, particularly to the development of recombinant fusion proteines based on bacterial adhesines and their use in diagnostic assays of hemagglutination for the specific detection of antibodies or antigenes in the blood and other biological samples. The object from a technical point of view is to obtain recombinant fusion proteines, or biochemical conjugates, useful for the development of simple diagnostic assay sytems based on bacterial adhesines or their domains of molecular interaction with red cells. The use of adhesion proteines of E. coli as a base of fusion recombinant proteines with an activity of union to human erythrocytes enhances the characteristics of expression in said host thereby eliminating potential problems in production yields associated to bacterial toxicity.
Patent CA-2290845-A1 (CA)
Title: Composition cosmetique contenant une association d'acide acexamique et de polyols
Inventor: PRADIER FRANCOIS
IPC: A61Q1/06
Filed: 1999-11-26
Abstract: L'invention se rapporte à une composition notamment anhydre de soin et/ou de maquillage des lèvres ou de la peau contenant comme actif de soin physiologiquement acceptable de l'acide acexamique solubilisé dans une phase grasse à l'aide d'au moins un polyol liquide à température ambiante et présentant une valeur d'IOB  (balance inorganique/organique) allant de 1 à 7. Cette composition peut se présenter sous forme de stick notamment de rouge à lèvres ou de baume à lèvres pour protéger les lèvres ou de stick pour traiter et/ou soigner les mains en particulier contre les intempéries et éviter ainsi leur dessèchement et/ou la formation de gerçures et de crevasses.
Patent CA-2292813-A1 (CA)
Title: Tea brewing apparatus
Inventor: PENNINGTON MILES
IPC: A47J31/06
Filed: 1999-12-22
Abstract: A machine for brewing tea, particularly in a shop situation. The machine has a housing and at least one brewing assembly. The brewing assembly is formed to hold a brewing cup that has a filter that defines and separates a first cavity within the brewing cup for containing tea leaves and a second cavity from which tea leaves are excluded. The housing has a water supply that supplies a predetermined volume of water at a temperature that is suitable for infusing tea leaves. It also has a water supply channel for delivering the water into the first cavity of the brewing cup, and a siphon tube that has a siphoning end that extends orthogonally upward into the second cavity of the brewing cup and a downward projecting dispensing end. The apparatus is constructed in a way that tea leaves infuse as the water is supplied into the first cavity of the brewing cup, but once the level of infused tea liquor in the second cavity of the brewing cup rises above the siphoning end of the siphon tube the tea liquor siphons down the siphon tube and is dispensed from the dispensing end of the siphon tube.
Patent CA-2292821-A1 (CA)
Inventor: GADEFAIT BENOIT DENIS RENE
IPC: F02K1/82
Filed: 1999-12-17
Abstract: L'invention concerne un dispositif d'échappement multicanal de turbomachine, du type multicanal à entré annulaire, comprenant une enveloppe extérieure de forme générale symétrique par rapport à un axe et au moins une séparation interne définissant plusieurs canaux sensiblement concentriques pour l'écoulement du flux d'échappement, un revêtement absorbant capable d'absorber une partie de l'énergie acoustique générée par l'écoulement est prévu sur au moins une surface de la séparation interne et/ou sur une surface interne de l'enveloppe extérieure. L'épaisseur du revêtement absorbant est adaptée sur la longueur du dispositif d'échappement pour optimiser l'écoulement dans les différents canaux en maintenant la diffusion progressive et en évitant les décollements au voisinage des surfaces immobiles. Grâce à cette disposition, la signature acoustique de la turbomachine est grandement réduite puisqu'il devient possible de bénéficier de l'augmentation de surface traitée acoustiquement due à la présence des séparations internes.
Patent CA-2293098-A1 (CA)
Title: Arrangement for billing or billing authorization using a telecommunication network
Inventor: BOUFFARD CLAUDE C
IPC: H04M15/00
Filed: 1999-12-23
Abstract: For authorizing a service such as a web based service provided by a third party service provider to a subscriber of a telecommunications network, the service provider or his calling agent makes a call to the subscriber, to obtain an authorization from the subscriber for an amount to be billed to the subscriber on their network bill. The web service is then provided and the billing system of the network is arranged to charge the subscriber an amount indicated by the service provider, and credit the service provider. Having the authorizing call made to the subscriber (rather than having the subscriber make the call) makes it easier for the provider to handle large scale operations. Also, it is easier for a subscriber. Notably, existing telephone billing systems are well adapted for billing many small transactions, and distributing the revenue.
Patent CA-2296642-A1 (CA)
Inventor: MEIJS GORDON FRANCIS
IPC: C07F7/08
Filed: 1998-07-14
Abstract: A chain extender including a silicon-containing diol of formula (I) wherein R1, R2, R3, R4, R5, and R6 are the same or different and selected from an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical; R7 is a divalent linking group or an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical; and n is 0 or greater, preferably 2 or less.
Patent CA-2297619-A1 (CA)
Title: Method and system for presenting information through an interactive viewing unit
Inventor: VILLENEUVE SYLVAIN
IPC: G06Q30/02
Filed: 2000-02-02
Abstract: In order to provide consumers with both factual product information and promotional messages related to products, a system and method is provided such that two types of information are displayed through an interactive consumer viewing unit, which is directly accessible to consumers at the point of product selection in a retail store.  Consumers can access information about a specific product through the use of a scanner, while also being presented with other advertising or public service content. The information can be delivered in the consumer's choice of language.