baber/WOPTO huggingface dataset:
Patent CA-2219519-A1 (CA)
Title: Method of controlling accumulation of sodium sulfate on the checker packing of a regenerator
Inventor: SCOTT WALTER W
IPC: C03B5/237
Filed: 1997-11-18
Abstract: The instant invention provides a method of controlling the accumulation of sodium sulfate in the checker packing of a regenerator of a cross-fired regenerative-type glass melting furnace. Typically, glass batch materials are melted within the furnace by combustion of fuel. This combustion produces exhaust gas that is drawn through the regenerator and heats the checker packing. During the melting operation; sodium sulfate gas is formed by the melted glass and is carried with the exhaust gas through the regenerator. The sodium sulfate gas may condense on a portion of the checker packing. As the sodium sulfate condensate accumulates on the checker packing, it may restrict the flow of exhaust gas and/or combustion air through the regenerator. In the instant invention, a section of the regenerator which includes the portion of the checker packing with the condensed sodium sulfate is selectively heated to a temperature sufficient to melt the sodium sulfate, while any additional heating of remaining sections of the regenerator is minimized.     In one embodiment of the invention, fuel is injected into a portion of the exhaust gas that passes through the section of the regenerator where the sodium sulfate condensate has accumulated. The fuel burns with the portion of the exhaust gas and heats the portion of the checker packing with the sodium sulfate build-up to melt the sodium sulfate.
Patent CA-2220540-A1 (CA)
Inventor: ACKERET PETER
IPC: B29C70/78
Filed: 1997-11-28
Abstract: A badge (1) or similar, e.g. for a handle of a synthetic material on a pocket knife such as a Swiss Army knife, is made from sheet metal, stamped out so that its central portion (110) and surround (100) are linked by thin connecting pieces (12, 13) which lie below the level of the main surfaces of the central portion and surround, so that they are covered with the synthetic material during moulding. The badge is made with curved outer surfaces which lie flush with the synthetic material, and the thin connecting pieces (12, 13) are stamped so that they lie below the level of the outer surfaces and are concealed below the synthetic material layer. During moulding the badge can be held in the required position by a vacuum or magnetism.
Patent CA-2222177-A1 (CA)
Title: Counterfeit resistant documents and methods
Inventor: PHILLIPS GEORGE K
IPC: B41M3/14
Filed: 1996-04-24
Abstract: An original document includes alphanumeric characters defined by an overprinted reflective layer formed on a complex patterned region (12), and having graphic or font size, shape and type coordinated to the particular patterns in the patterned region. The coordination of the overprinted reflective layer with the patterned region (12) is such that if the document is electronically scanned or duplicated by kerographic photocopying, the patterned region (12) will at least partially obscure the alphanumeric characters (14) so that they can only be read with difficulty, thereby comouflaging the text.
Patent CA-2223363-A1 (CA)
Title: Absorbent articles having lotioned leg cuffs
Inventor: SCHULTE THOMAS EDWARD
IPC: A61F5/44
Filed: 1997-12-03
Abstract: An absorbent article, such as a diaper, containing leg cuffs coated with a lotion composition is disclosed. The lotions disclosed in the present invention minimize the abrasion between the cuffs and skin in the area where the cuffs contact the wearer's skin, resulting in less skin irritation. The lotion compositions also reduce the adherence of BM to the skin of the wearer, thereby improving the ease of BM clean up. The lotion composition comprises a plastic or fluid emollient such as mineral oil or petrolatum, an immobilizing agent such as a fatty alcohol or paraffin wax to immobilize the emollient on the surface of the diaperleg cuffs, and optionally a hydrophilic surfactant to improve the processabilityand/or stability of the lotion compositions. Because the emollient is substantially immobilized on the surface of the leg cuff, less lotion is required to impart the desired therapeutic or protective lotion coating benefits.
Patent CA-2224327-A1 (CA)
Title: Thermal neck wrap having wing shape and means for position maintenance
Inventor: OUELLETTE WILLIAM ROBERT
IPC: A61F7/00
Filed: 1996-06-03
Abstract: A substantially triangular piece of flexible material, which has the appearance of a delta-winged aircraft when flattened. The piece of flexible material has a first wing portion, a second wing portion, a central body portion therebetween, and a body-facing side. The neck wrap also has a plurality of individual thermal elements embedded therein. The plurality of thermal elements have a pattern which approximates the shape and location of muscles in the user's upper back, lower neck, and shoulders. The pattern has a gap bisecting the central portion corresponding to the user's spine. The neck wrap also has means for maintaining the piece of flexible material in a desired position once the piece of flexible material has been draped over the user's shoulders. The central portion is centered at the user's upper back and lower neck and the first and second wing portions lay across the user's shoulders and rest on the user's chest. The means for maintaining the piece of flexible material in position includes counterweights attached to the first and second wing portions in order to balance the thermal elements in the central portion and at least one strip of foamed polymer attached to each of the first and second wing portions on said body-facing side thereof.
Patent CA-2225800-A1 (CA)
Inventor: MULTEDO GILBERT
IPC: H04B7/04
Filed: 1996-06-18
Abstract: A method comprising a step (4) of calibrating an antenna base, followed by a step (5) of setting receive chains for each channel, wherein a first predetermined setting signal is synchronously transmitted over each receive chain, and an equalisation filter is computed for reversing the transfer functions for each receive chain; a step (6) of setting transmit chains for each channel, wherein a second predetermined setting signal is synchronously transmitted over each transmit chain, a portion of the transmit signal is taken from each channel prior to transmission to the antenna base and fed back into the receive chains, and an equalisation filter is computed for reversing the transfer functions for each transmit chain; and a step (7) of receiving signals from the antenna base via the equalisation filters previously computed for the receive chains, or transmitting signals from a multichannel transmitting/receiving device via the equalisation filters previously computed for the transmit chains. The method is useful for communication between mobile stations and a base station, in particular using a space division multiple access technique.
Patent CA-2234015-A1 (CA)
Title: Fastening mechanism for connecting articles and the like together
Inventor: ORTIZ KIM A
IPC: A44B11/26
Filed: 1998-04-06
Abstract: A fastening mechanism for releasably connecting a first article and a second article together is provided herein. The fastening mechanism includes a pair of reversible, interchangeable connector elements. A first connector element is connectable to one of the articles. A second connector element is connectable to the article. The first connector element releasably-matingly connects to the second connector element for connecting the articles together. A guide bar is formed on each of the connecting elements, each guide bar being at least partially supported along its length. A receiving opening is formed on each of the connecting elements. Upon connecting the connector elements together, the receiving opening on each connecting element matingly-receives the guide bar on the other connecting element.
Patent CA-2237437-A1 (CA)
Inventor: WOLD EDWIN L
IPC: F02N11/14
Filed: 1998-05-12
Abstract: Apparatus for securing an electrical power cord against theft comprises cylindrical tube rigidly attached to a padlock. The cord passes through the tube's bore. The bore is too small to pass the enlarged cord ends or plugs, trapping the cord in the tube. The cord cannot be removed without first removing the cord ends or severing the cord. The padlock can be locked to any secure structure, rendering the cord resistant to theft.
Patent CA-2238047-A1 (CA)
Inventor: MALAY MANUEL R
IPC: H01M50/167
Filed: 1997-09-26
Abstract: L'invention concerne une cellule galvanique, en particulier une cellule galvanique miniature, comprenant un bac en cuvette sur lequel on place un couvercle avec un rebord dirigé vers le bas, et un joint d'étanchéité. Le joint d'étanchéité est comprimé dans le bac et le rebord du couvercle de façon à fermer la cellule et à isoler électriquement le couvercle du bac. Dans la présente cellule, le rebord ne s'étend pas au-delà de la moitié du bac en partant du haut de celui-ci, ce qui permet au joint d'étanchéité d'occuper moins de 8 % du volume intérieur libre de la cellule, laissant un espace plus grand aux composants actifs.
Patent CA-2238337-A1 (CA)
Inventor: SLEE DEBORAH H
IPC: C07D207/16
Filed: 1996-12-09
Abstract: Combinatorial libraries of HIV and FIV protease inhibitors are characterized by .alpha.-keto amide or hydroxyethylamine core structures flanked by on one side by substituted pyrrolidines, piperidines, or azasugars and on the other side by phenylalanine, tyrosine, or substituted tyrosines. The libraries are synthesized via a one step coupling reaction. Highly efficacious drug candidates are identified by screening the libraries for binding and inhibitory activity against both HIV and FIV protease. Drug candidates displaying clinically useful activity against both HIV and FIV protease are identified as being potentially resistive against a loss of inhibitory activity due to development of resistant strains of HIV.
Patent CA-2244313-A1 (CA)
Title: Cryogenic air separation with combined prepurifier regenerators
Inventor: DRAY JAMES ROBERT
IPC: F25J3/04
Filed: 1998-07-28
Abstract: A method is provided for separation of air by cryogenic rectification comprising compressing feed air, passing the compressed feed air through a prepurifier wherein the air is substantially cleaned of impurities, thereafter cooling the cleaned air in a cooled regenerator and then introducing it into a cryogenic air separation facility wherein it is separated into nitrogen-rich and oxygen-rich components.
Patent CA-2246100-A1 (CA)
Title: Hydraulic system and pump
Inventor: TIEBEN JAMES B
IPC: F15B1/02
Filed: 1998-08-27
Abstract: A hydraulic system includes a hydraulic fluid pump, a hydraulic cylinder, and a pressure accumulator. A hydraulic fluid valve is movable between a first position and a second position. In the first position, the valvedirects fluid from the pump outlet to the hydraulic cylinder and from the accumulator to the pump inlet. In the second position the valve directs fluid from the pump outlet to the accumulator and from the hydraulic cylinder to the pump inlet. In this way pressurized hydraulic fluid from the cylinder can be stored in the accumulator for reuse. The pump includes high pressure seals at both ends of the driven shaft in order to reduce or eliminate offset forces of the type that might increase friction and wear.
Patent CA-2246215-A1 (CA)
Title: Multilayer non-stick coating of improved hardness for aluminum articles and articles and culinary utensils incorporating such coating
Inventor: BUFFARD JEAN-PIERRE
IPC: A47J36/02
Filed: 1998-09-02
Abstract: A multilayer non-stick coating of improved hardness for aluminum articles includes an alumina-based hard first layer obtained by anodic oxidation of the aluminum article immersed in an alkaline solution. Micro-arcs are applied to the article by means of a high current and a high potential difference. A second layer based on polytetrafluoroethylene and chemical agents constitutes a primer for one or more polytetrafluoroethylene-based finish layers.
Patent CA-2246974-A1 (CA)
Title: Improved method and apparatus for obtaining attitude updates in a strapdown inertial navigation system
Inventor: TAZARTES DANIEL A
IPC: G01C21/16
Filed: 1998-09-14
Abstract: The invention is a method and apparatus for updating the attitude of a body by utilizing a plurality of gyros to measure as a function of time the angular rate vector or the integrated angular rate vector for the body. The method comprises the steps of (1) obtaining measured values of the angular rate vector at a plurality of readout intervals, (2) obtaining a smoothed value of each of one or more smoothed representations of the angular rate vector at the end of each of a plurality of smoothing intervals, and (3) obtaining the updated attitude of the body at the end of an update interval by utilizing the attitude at the beginning of the update interval and the smoothed values of the smoothed representations of the angular rate vector obtained during the update interval. A smoothed representation is a weighted sum of the measured values obtained during a smoothing interval. The attitude is updated at the end of an update interval by applying a rotation vector to the attitude at the end of the prior update interval, the rotation vector being a weighted sum of (1) a plurality of the smoothed values and (2) the values of a plurality of cross-products of the smoothed values, the smoothed values having been obtained during the update interval.
Patent CA-2248284-A1 (CA)
Title: Tetracarbon coated medical implant
Inventor: NOVIKOV NIKOLAY D
IPC: C23C14/02
Filed: 1996-12-18
Abstract: A synthetic polymeric form of carbon (Tetracarbon.TM.) which exhibits some properties similar to biological tis-sues. Tetracarbon is highly biocompatible and may have application in medicine and microelectronics. Tetracarbon is a biocompatible substrate coating made by depositing short linear chains of carbon atoms upon the surface of the substrate.  The carbon chains are non-turbostratic and oriented perpendicular to the substrate surface and are densely packed parallel to one another in hexagonal structures with the distance between the carbon chains being between 4.8 - 5.03 .ANG.. A layer of Tetracarbon is identical to an adjacent layer and randomly shifted laterally relative to each other.
Patent CA-2248353-A1 (CA)
Inventor: KEGG CHRISTOPHER JOHN
IPC: A01D7/10
Filed: 1997-03-07
Abstract: A garden implement comprising an elongate handle (5), a shell member (1) fixed to the handle (5), a movable shell member (2) pivotally mounted on the shell member (1), and linkage means (7) connecting the shell members (1, 2) to a grip sleeve (6) on the handle (5). The shell members (1, 2) may be spread from a closed position to an open position by movement of the grip sleeve (6). Each of the shell members has an edge margin comprising a plurality of tynes (14, 17), and when the shell members (1, 2) are in the closed position the tynes (14) of one shell member (1) are interdigitated with the tynes (17) of the other shell member (2).
Patent CA-2249069-A1 (CA)
Title: System and method for a connection admission control scheme in a multi-service atm network
Inventor: RABIE SAMEH
IPC: H04L47/80
Filed: 1998-09-29
Abstract: A connection admission control scheme for use in asynchronous transfer mode (ATM) networks supporting multiple priority classes. Initially, a switching nodeconnected to the network receives a connection request. The connection request may be from one of multiple priority classes received at the node. Once the priority isdetermined, an equivalent cell rate of the connection request is computed and compared to an available cell rate which is the maximum cell rate that the node is able to handle for the determined priority. If the equivalent cell rate is less than the available cell rate, the connection request is admitted to the node. If the equivalent cell rate is greater than the available cell rate then the connection request is rejected. By admitting connection requests in this manner, the connection admission control scheme provides quality of service guarantees for the duration of the connection.
Patent CA-2251380-A1 (CA)
Inventor: LAMBERT JUANELLE LITTLE
IPC: C08B3/16
Filed: 1997-04-04
Abstract: Cellulose esters according to formula (I): ¢(C6H7O2)(OR)x(OR')y(OH)3-x-y!n are described, where R is hydrophobic, R' is hydrophilic and not phthalyl or trimellityl, which may be designed, by the proper selection of R, R', x, y, and n, to dissolve under mild to alkaline conditions, and not before. A coating comprising a modified ester according to formula (I) may be used for controlled-release applications, particularly for a cleaning formulation.
Patent CA-2258068-A1 (CA)
Title: Method for preparing a fabric substantially consisting of carbon fibers
Inventor: VAN DREUMEL WILHELMUS HENDRIKU
IPC: D06M101/00
Filed: 1999-01-07
Abstract: A method for preparing a fabric substantially consisting of carbon fibres for impregnation with a thermoplastic plastic comprises of: a) providing a fabric which substantially consists of carbon fibres with a coating of an epoxy material without curer; and (b) bringing and for a chosen time holding this fabric at an increased temperature such that the carbon fibres remain unaffected and the epoxy material is aged or neutralized and loses its tacky character.
Patent CA-2259246-A1 (CA)
Title: Pesticidal 3-(substituted phenyl)-5-(thienyl or furyl)-1,2,4-triazoles
Inventor: JOHNSON PETER L
IPC: C07D405/04
Filed: 1998-03-18
Abstract: 3-(Substituted phenyl)-5-(thienyl or furyl)-1,2,4-triazole compounds are useful as insecticides and acaricides. New synthetic procedures and intermediates for preparing the compounds, pesticide compositions containing the compounds, and methods of controlling insects and mites using the compounds are also provided.
Patent CA-2261816-A1 (CA)
Title: Optimizing call-center performance by using predictive data to distribute calls among agents
Inventor: MATHEWS EUGENE P
IPC: H04M3/523
Filed: 1999-02-15
Abstract: Selection of a call-center agent (106-108) to handle a call is based on which available agent's handling of the call will tend to optimize call-center performance criteria such as efficiency (e.g., minimize per-call handling time) or derived benefit (e.g., maximize revenue). Each agent has a service profile for each type of call that they handle. A service profile (400-402) comprises present values of a plurality of service metrics, such as proficiency, profitability, customer satisfaction, and agent satisfaction. When a call of a particular type becomes available, the present values of the service metrics of the service profile (400-500) of that call type of each agent who is available to handle the call are combined (304) into a score according to one of a plurality of formulas which corresponds to that call type, and the agent with the best score is assigned (306) to the call. When the assigned agent finishes handling the call, his or her performance is evaluated (202-206) based on the service metrics, and the valuations are used (210) to revise the present values of the service metrics of that agent's service profile. The revision process gives (208) more weight to valuations of more-recently-handled calls to reflect both long-term and short-term agent performance trends and variations.
Patent CA-2264291-A1 (CA)
Title: Process and device for control and monitoring a traffic control system
Inventor: GERMANN STEPHAN
IPC: B61L19/06
Filed: 1997-08-19
Abstract: This invention concerns a process for control and monitoring of a traffic control system which has actuators and monitoring elements and by means of which at least two traffic tracks for railborne vehicles can be controlled by a control process which, upon request for allocation of a route, blocks all the actuators belonging to this route against other requests to create additional routes and control operations and carries out the request. To that effect, each of the changes in the positions or conditions of the actuators to be carried out by the control process, takes place only after successful testing for permissibility by a test process which is independent of the control process and which, in each case, tests whether the actuators and/or monitoring elements to be blocked or to be actuated for the allocation or release of the route already are in use and, thus, have been blocked.
Patent CA-2266091-A1 (CA)
Title: Low-oxygen fluorocarbon as an agent for ophthalmology
Inventor: KOBUCH KARIN
IPC: A61K31/025
Filed: 1999-03-17
Abstract: The present invention concerns fluorocarbons for use in ophthalmology. Fluorocarbons disclosed in the prior art can only be left in the eye for a limited period of time because they cause damage to the retina or intraocular structure. The present invention provides an oxygen-fluorocarbon mixture having a dissolved oxygen content of less than 6% by volume, which can be used as an ophthalmological agent for longer periods of time than conventional fluorocarbons, with little or no damage to the retina or intraocular structures. The invention also provides a process for preparing the oxygen-fluorocarbon mixture. In one embodiment, up to 20% by volume of a second gas, such as carbon dioxide or nitric oxide, is combined with the oxygen-fluorocarbon mixtures.
Patent CA-2266143-A1 (CA)
Inventor: SCHMEICHEL CHARLES MILTON
IPC: B60R19/52
Filed: 1999-03-19
Abstract: A vehicle grill cover which is constructed by the use of a fabric cover and is designed to fit, including any opening necessary to accommodate a given manufacturer's emblem within the design of the grill, within the grill openings of many vehicles on the road today, whether they be one large opening or many smaller ones. The fabric cover is held in place over the grill of the vehicle by the use of the hook and loop fastening straps which engage another strap attached to the grill in a plurality of locations, thereby, allowing for the quick and easy installation and removal of the present invention from the grill of a vehicle. Additionally, the point at which the hook and loop fasteners are attached to the fabric cover is offset in relation to the position of the grill at which it is to be attached. This allows the fabric cover to be stretched tightly over the grill opening ensuring an effective barrier to the passage of cold, outside air, or bugs and debris.
Patent CA-2269200-A1 (CA)
Inventor: BERLIN GREGORY
IPC: A61F9/01
Filed: 1997-10-21
Abstract: L'invention concerne un procédé destiné à sculpter un faisceau laser (13) selon un motif préétabli, au moyen d'un dispositif (17) situé entre la source laser (11) et la cible (23). Ce procédé comprend une série d'étapes séquentielles, dans lesquelles au moins deux zones de la cornée (177) sont exposées chacune à des parties progressivement plus grandes du faisceau laser (13). Dans le mode de réalisation préféré, deux paires de zones complémentaires de la cornée (177) sont exposées de façon séquentielle à un rayonnement laser. Dans chacune de ces zones, une première partie est exposée à une partie sensiblement segmentaire du faisceau (13), puis à au moins une autre partie, plus grande, sensiblement segmentaire du faisceau, la partie segmentaire la plus grande incluant la partie segmentaire la plus petite. Dans le mode de réalisation préféré, la cible (23) est l'oeil humain, et le motif préétabli est destiné à conférer une forme à l'oeil afin de traiter un astigmatisme, une myopie ou une hypermétropie.
Patent CA-2270429-A1 (CA)
Inventor: NOVAK ABRAM
IPC: H01Q1/24
Filed: 1997-11-18
Abstract: A system is provided for distribution of broadcast and direct satellite television signals (12) to multiple user, for example, within a multiple dwelling building. In one embodiment broadcast signals (18) are combined (42, 44) with right- and left-hand satellite signals and provided by a dual transmission line distribution system to user locations. In an alternate embodiment, satellite signals corresponding to one polarization are converted to a separate frequency band to provide a combined signal incorporating left-and right-hand corresponding satellite signals and broadcast signals for distribution.