baber/WOPTO huggingface dataset:
Patent CA-2253260-A1 (CA)
Inventor: NAITO MAYUMI
IPC: A61K9/00
Filed: 1997-05-01
Abstract: A suspension of a sparingly water-soluble acidic drug especially, a nonsteroidal anti-inflammatory analgetic agent, which is stable for a prolonged period of time and is highly dissolvable; and a process for simply and easily producing the suspension. This suspension has a pH value of 2 to 5 and comprises a sparingly water-soluble acidic drug whose average particle size ranges from 1 to 15 .mu.m, a polyglycerol fatty acid ester, a watersoluble polyhydric alcohol and water, optionally, together with an inorganic powder having an average particle size of 1 to 15 .mu.m. This process is characterized by carrying out pulverization and dispersion of sparingly watersoluble acid drug, a polyglycerol fatty acid ester, a water-soluble polyhydric alcohol and water by means of a pulverizer comprising a main shaft adapted to rotate in a casing and a plurality of layshafts adapted to revolve in relationship interlocked with the rotation of the main shaft, each of the layshafts being fitted with a multiplicity of annular grinding media.
Patent CA-2253789-A1 (CA)
Inventor: HANSSON ALLAN
IPC: H04N7/24
Filed: 1997-06-03
Abstract: This invention relates to a network terminal and an IP access node in the access network. The network terminal gives instant access to a multitude of communication services such as telephony, video, data, multimedia as well as services provided by Internet. In the access network, IP is used as an internal multiplexing and transport technique.      The speed at which data is transported on the access line is limited by the used modern technique; not by the restrictions posed by the general public switched telephone network.      Several terminals may be connected to one and the same access line.
Patent CA-2254264-A1 (CA)
Inventor: BIGOTTO PIER CARLO
IPC: H01R4/24
Filed: 1998-11-19
Abstract: An electric terminal (1) having a contact portion (8) which cooperates with a complementary contact element (1'); and a connection portion (6) connectable to an electric cable (7) and having at least one knife element (13) with a pair of facing blades (30) defining an opening (18) for transverse insertion of the cable (7); the blades (30) increasing in thickness from respective end portions (39), for cutting a sheath (12) of the cable (7), to respective base portions (37) cooperating with and for exerting pressure on an inner conductor (11) of the cable.
Patent CA-2254357-A1 (CA)
Title: Diazonium assay reagents and methods for their use
Inventor: BOURNIQUE JENNIFER S
IPC: G01N21/77
Filed: 1998-11-17
Abstract: Diazonium ions which are useful as reagents for the assay of bilirubin content in a sample, such as a body fluid sample, are provided. In one preferred embodiment, 2-methyl-3-nitroaniline diazonium ion is provided, having the structure: (see formula I) Also provided are reagent compositions including the diazonium ions. The reagent compositions may be in liquid or solid form, and further may include other components, such as buffers, carriers, and solubilizers. Salts including the diazonium ion and a counteranion also are provided. Also provided are methods of using the diazonium ions in assays to detect or quantitate bilirubin present in a sample such as a body fluid sample. Using the assays, the amount of direct, indirect, and total bilirubin in a sample may be accurately and reproducibly detected, and optionally correlated with the presence or absence of any of a variety of diseases or disorders of organs such as the liver, gall bladder or intestines. Using the assays, a wide range of different body fluid samples, such as urine, plasma or serum samples may be tested, and the interference in the assay from other components of the sample may be minimized.
Patent CA-2254590-A1 (CA)
Inventor: WHIDDEN WILLIAM C
IPC: F25C1/04
Filed: 1998-11-27
Abstract: A support arrangement for supporting a flexible, water-containing mold of intricate configuration in a tank having supporting sides and containing a chilled liquid, such that an item of crystal clear ice can be created in the flexible mold. The flexible mold has an upper, support portion and a lower, principal portion, and also has interior surfaces possessing a distinctive degree of roughness. The support arrangement involves elongate support means for operatively engaging the upper portion of the mold, with the elongate support means being of a length sufficient to span between the supporting sides of the tank such that the mold can be supported with a selected extent of the principal portion of the mold immersed below the surface of the chilled liquid. Circulation of the water in the mold is brought about so that the interior sides of the mold will be swept, thus preventing the formation of cloudy ice. The arrangement for causing circulation of the water in the mold may involve a gas supply utilized for supplying controlled amounts of gas to a lower interior portion of the mold so that suitable amounts of gas can be caused to rise up through the water in the mold and prevent the formation of cloudy ice. Other arrangements for causing circulation of the water in the mold may include power driven rotatable means disposed in the mold.
Patent CA-2254667-A1 (CA)
Title: Face seal having strain induced face geometry
Inventor: PEARCE DAVID E
IPC: E21B10/22
Filed: 1998-11-23
Abstract: The present invention provides a mechanical seal for rotary rock bits with a uniquely formed hydrodynamic wave geometry on the sealing faces. The faces are first manufactured flat and smooth, then upon assembly are elastically deformed into a hydrodynamic geometry by the energizing system. One or both of the mechanical sealing faces are lapped flat to less than about six helium light bands and polished to a minimum of about 5 micro-inch RA surface finish across the entire width of the sealing faces. After the smooth flat sealing surface is formed, the mechanical seal face elastically deforms into a hydrodynamic wave geometry. The typical deformation has a magnitude greater than about three helium light bands more than the original surface. The deformed surface maintains its finish of less than about five micro-inches RA. The region of the sealing surface at the outer periphery of the seal does not have a wave geometry. Rather the portion of the seal face at the periphery is flat and parallel to its mating seal ring to exclude abrasives and eliminate lubricant leakage.
Patent CA-2256205-A1 (CA)
Title: Circuit interrupter with covered accessory case with accessory having lock-in feature and pull tab
Inventor: MUNSCH WILLIAM D
IPC: H01H71/02
Filed: 1998-12-16
Abstract: A molded case circuit breaker is taught with a housing base and a primary cover disposed on the housing base. The primary cover has a recess therein for an auxiliary module which is disposed in the recess. A secondary cover is disposed on the primary cover for covering the recess when the auxiliary module is disposed therein. In order to secure the auxiliary module underneath the secondary cover in the recess of the primary cover, the module has deposed thereon a locking protrusion which is complimentary with a locking opening in the primary cover. The locking protrusion is flexible and has a longitudinal central bulge so that as the protrusion is pressed inwardly into the opening, the bulge causes the flexible protrusion to reduce diameter due to the presents of longitudinal slots therein until the bulge has passed the opening in which case it springs outwardly toward its normal position thus securing the protrusion in the base. A flexible pull tab is provided for displacement under the auxiliary or secondary cover so that when the auxiliary or secondary cover is removed the pull tab may be tugged upon to remove the module from the primary cover by providing the reverse operation to the insertion operation previously described.
Patent CA-2259993-A1 (CA)
Title: System and method for reducing cumulative noise in a distributed antenna network
Inventor: ECKSTEIN LARRY
IPC: H04B7/08
Filed: 1997-07-07
Abstract: A communications system and method are provided for reducing noise in a distributed antenna network.      The system includes a plurality of remote antenna units (100n) with each remote antenna unit including a receiver for receiving input signals, a signal strength processor (130n) for determining whether a valid signal is present at its respective remote antenna unit (102n) and an output controller (142n) for switching off the network connection when no valid signal is present. As a result, the cumulative noise generated by uplink stages connected to the remote antenna units (100n) is reduced by switching off the network conncection of remote antennas that do not have to be connected. The communications system and method may further include an output controller for controlling the output for its respective remote antenna unit based on the comparison by the signal strength processor. The output controller may control the network connection of the remote antennas by switching off their connection to the network when the signal strength processor determines that the signal strength level is below a noise threshold level. The output controller may control the output of the remote antenna units by switching off their connection to the network when the signal strength processor determines that the signal strength level is below a noise threshold level and by switching on the connection to the network when the input signal strength level is greater than or equal to the noise threshold level.
Patent CA-2260303-A1 (CA)
Inventor: DALEY HOWARD C
IPC: B29C45/10
Filed: 1999-01-25
Abstract: The invention is directed to a method for adapting injection molding machines utilizing horizontally opening and closing molds and their opening and closing mechanisms to vertically opening and closing molds and their opening and closing mechanisms and vice versa. An injection molding machine might, for example, be utilized to inject hot synthetic resin substantially horizontally into a cavity between horizontally opening and closing molds associated with horizontally opening and closing mechanisms. This horizontal mold and its opening and closing mechanism is removed relative to the injection molding machine and substituted therefor is a vertically opening and closing mold and its associated vertically opening and closing mechanisms.  The hot plastic material from the horizontal injection molding machine is initially constrained in movement horizontally but subsequently vertically into the cavity of the vertically opening mold. This allows molds to be utilized with presses which might otherwise heretofore been structurally and functionally incompatible.
Patent CA-2261380-A1 (CA)
Inventor: WYNER ELLIOT F
IPC: H01J61/22
Filed: 1999-02-08
Abstract: A long-life, environmentally disposable high pressure sodium lamp comprising:  an arc tube capable of withstanding internal wall temperatures of 1250 to 1300°C and having electrodes sealed therein and being designed for operation at a given wattage;  a discharge space within the arc tube and an arc generating and sustaining medium within the discharge space, the medium being mercury-free and containing sodium in an amount of about 0.02 mg to 0.06 mg/watt of designed operation, and xenon at a pressure of 100 to 200 Torr; mounting means supporting the arc tube within a glass outer envelope, the glass outer envelope being lead-free and arsenic-free; and an electrically conductive base closing the outer envelope and containing lead-in wires affixed to the electrodes, the lead-in wires being attached to the base by welding.
Patent CA-2264554-A1 (CA)
Title: Method of producing thermoplastic resin film and apparatus for producing the same
Inventor: OSADA SHUNICHI
IPC: B29C48/08
Filed: 1998-07-09
Abstract: A method of producing a thermoplastic resin film capable of giving a biaxially oriented polyester film at a speed of as high as at least 400 m/min and an apparatus therefor. Specifically, a method of producing a thermoplastic film, wherein a molten thermoplastic resin film is closely bonded to, and cooled and solidified, on a cooling medium to prepare a cast film, characterized in that the surface temperature of the medium immediately before the melt is brought into contact therewith is higher than a glass transition temperature Tg of the thermoplastic resin but is lower than a melting point Tm thereof. The apparatus has a heater device and a cooler provided in the cooling medium so that the surface temperature of the medium immediately before the melt is brought into contact therewith is higher than the glass transition temperature Tg of the thermoplastic resin but is lower than the melting point Tm thereof, and the surface temperature of the medium immediately before being peeled off is maintained to be lower than the glass transition temperature Tg of the thermoplastic resin.
Patent CA-2266357-A1 (CA)
Title: Pictet-spengler reaction for the synthesis of tetrahydroisoquinolines and related heterocyclic compounds
Inventor: WATSON TIMOTHY JAMES-NORMAN
IPC: C07D221/20
Filed: 1997-08-04
Abstract: A commercial scale process for the production of tetrahydroisoquinolines and related heterocyclics by reaction, in mildly acidic conditions, of aryl N-sulfonylethylamines in the presence of suitable Lewis acid, and a compound capable of in situ generation of formaldehyde. The process is further characterized by formaldehyde being generated by the reaction of the Lewis acid upon the formaldehyde generating agent, instead of being present as an initial reactant. The process further avoids the presence of initial water which destroys the Lewis acid before it can act upon the formaldehyde generating agent.
Patent CA-2266486-A1 (CA)
Title: Rotavirus vaccine formulations
Inventor: BURKE CARL J
IPC: A61K39/00
Filed: 1997-09-26
Abstract: The present invention provides liquid formulations, especially oral formulations, of live rotaviruses useful as vaccines. The invention also provides lyophilized formulation of live rotavirus useful, when reconstituted, as vaccines.  The vaccine formulations provide a stable environment to preserve the effectiveness of live rotavirus vaccines. Methods for the preparation of the liquid and lyophilized formulations are described. Methods of use of the formulations in the prevention and amelioration of rotavirus induced disease are also described.
Patent CA-2268200-A1 (CA)
Title: Bird anti-perching device
Inventor: GOSSELIN J PETER
IPC: A01M29/32
Filed: 1999-04-07
Abstract: A bird anti-perching device is described having a rotatable cylindrical member extending between two support members and capable of rotating freely if a bird lands thereon, thereby to form an unstable perch. The device can be attached to the ledge of a balcony in a number of ways to prevent birds from alighting on the balcony.
Patent CA-2271694-A1 (CA)
Title: Fibre optique a compensation de pente de dispersion
Inventor: TSUDA TOSHIAKI
IPC: G02B6/10
Filed: 1998-09-10
Abstract: L'invention concerne une fibre optique à compensation de dispersion compensant une dispersion de longueur d'onde et une pente de dispersion d'une fibre optique à pente de dispersion positive telle que TRUE WAVE, et améliorant la fiabilité d'une transmission multiplexée en longueur d'onde dans des longueurs d'onde comprises entre 1530 et 1610 nm. Un coeur central (3) est recouvert d'une couche de coeur latérale (4), dont la périphérie extérieure est recouverte d'une couche enrobée (5) et les rapports entre les différences d'indices de réfraction spécifiques .DELTA.1, .DELTA.2, .DELTA.3 du coeur central (3), de la couche de coeur latérale (4) et de la couche enrobée (5) par rapport au quartz pur doivent être établis à .DELTA.1 > .DELTA.3 > ?.DELTA.2, .DELTA.2/.DELTA.1 = Rd ?-0,45, et .DELTA.1 ? 1,2 %. La pente de dispersion moyenne jusqu'aux longueurs d'onde comprises entre 1530 et 1610 nm ne doit pas être supérieure à -0,6 ps/nm?2¿/km, et une valeur obtenue par division d'une valeur de dispersion se trouvant dans la même bande de longueur d'onde, par la pente de dispersion ne doit pas être supérieure à 160. La fibre optique à longueur non supérieure à environ 1/9 de la TRUE WAVE, est connectée à la TRUE WAVE dotée d'une pente de dispersion moyenne dans la bande de longueur d'onde comprise entre 0,07 et 0,1 ps/nm?2¿/km environ et d'une valeur de dispersion environ 15 à 60 fois aussi grande que celle de la pente de dispersion, de manière que la dispersion dans la bande de longueur d'onde puisse être ramenée à une dispersion nulle.
Patent CA-2276944-A1 (CA)
Inventor: DI TULLIO VENANZIO
IPC: C10G1/04
Filed: 1999-07-13
Abstract: An improved Process for the total separation and recovery of four constituents, namely 1) insoluble pitches and tars also known as asphaltenes, 2) a kerosene based oil fraction, 3) clays and silts of less than 80 µm mesh and 4) sands of greater than 80 µm mesh. Recombination of the hydrocarbon fractions is the bitumen portion of Tar Sands. A further process for the extraction and separation of plant resins from cellulose and kerogen from oil shale that on thermal depolymerization become a source for aromatic and kerosene based oil fractions respectively.
Patent CA-2278531-A1 (CA)
Title: Purifying polyunsaturated fatty acid glycerides
Inventor: MAJEWSKI WIESLAW
IPC: C07C69/587
Filed: 1998-01-26
Abstract: A composition containing polyunsaturated fatty acid glycerides is purified by means of supercritical fluid fractionation in one or more countercurrent columns operated either with internal reflux achieved by a temperature gradient along the column or with an external reflux achieved through external regulation of the pressure, and using as the solvent a mixture of supercritical CO2 and a polar co-solvent. Oligomeric and malodorous impurities in particular can be successfully removed by this process, which also can, if desired, be followed, or preceded, by another supercritical fluid fractionation with supercritical CO2 under conditions adjusted so as to favour fractionation of the glyceride components.
Patent CA-2279525-A1 (CA)
Title: Procede hybride chimique et biologique de decontamination de boues d'epuration municipales
Inventor: TYAGI RAJESHWAR D
IPC: C02F1/78
Filed: 1999-08-03
Abstract: La présente invention concerne un procédé hybride chimique et biologique de décontamination des boues d'épuration par l'enlèvement des métaux lourds et la destruction des micro-organismes pathogènes présents dans lesdites boues, comprenant les étapes suivantes: a) production, par oxydation biologique du sulfate ferreux, d'une solution très concentrée de sulfate ferrique en milieu acide; b) mélange dans un réacteur de la solution obtenue à (étape a) et des boues afin de solubiliser les métaux lourds et détruire les bactéries indicatrices de pathogènes des boues, tout en s'assurant que le potentiel d'oxydoréduction demeure préférentiellement supérieur à 400 mV et que le pH des boues varie préférentiellement entre 2.0 et 3.0, par l'ajout de la solution de (étape a); c) conditionnement des boues lixiviées obtenues à (étape b) par l'ajout d'un floculant et optionnellement d'un aide-coagulant, suivi par une séparation liquide-solide, et une déshydratation des boues lixiviées; d) neutralisation des boues déshydratées obtenues à l'étape c) par ajout d'une base telle que la chaux vive ou inerte.
Patent CA-2280754-A1 (CA)
Title: Electromechanical cylinder lock
Inventor: KERR DUNCAN
IPC: E05B47/06
Filed: 1997-05-23
Abstract: An electromechanical cylinder lock (Fig. 1) includes an outer lock shell (20) and a rotatable lock barrel (22) located therein which is controlled by dual locking features. A side bar or fence (60) selectively blocks and permits rotation of the barrel (22) with respect to the shell (20) in response to insertion of a key into a keyway (34) in the barrel (22). A slider bar (50) is movable between a blocking position in which the side bar (60) is prevented from permitting rotation of the barrel (22), and an unblocking position in which the side bar (60) permits rotation of the barrel (22). Alternately, a blocking mechanism (Fig. 19) is provided to block motion of tumbler pins in the cylinder lock (30). A shape memory alloy actuator (706), such as a wire made of nitinol, disposed in the barrel (22) is activated by an electric current in response to determination by an electronic control device whether an attempt to open the lock is authorized. Thermal interlock protection from external heating of the lock is also provided.
Patent CA-2281257-A1 (CA)
Title: Single frame pull rake
Inventor: ROWSE RON A
IPC: A01D78/00
Filed: 1999-09-01
Abstract: The line of pull from a prime mover extends along a tongue assembly pivotally connected to a wheel rake frame assembly and intersects with the rear discharge end of the frame assembly when the rake is at its maximum angle of attack and with the extended longitudinal axis when the angle of attack is at its minimum thereby balancing forces on the rake and minimizing rake drift such that a consistent width of cut material can be raked.
Patent CA-2282642-A1 (CA)
Title: Method and data system for determining financial instruments for, and term to maturity of, a loan
Inventor: KRISTIANSEN KLAUS
IPC: G06Q40/00
Filed: 1998-03-03
Abstract: Method and data processing system for calculating the type, the number and the volume of financial instruments for funding a loan with equivalent proceeds to a debtor, the loan designed to be refinanced during its term to maturity. At the start of each period, the remaining term to maturity is determined such that debtor's payments during the total term to maturity of the loan are within a band defined by a set of maximum and minimum limits which can be fixed for each period, and such that the remaining term to maturity of the loan is within a band defined by a maximum and a minimum limit. If necessary, a rule for prioritization between the limits for the payments and the limits for the term to maturity is established.
Patent CA-2283042-A1 (CA)
Inventor: DAO THOMAS KIET
IPC: G06F11/20
Filed: 1999-09-23
Abstract: An apparatus, method and system are provided for file synchronization for a fault tolerant network, and are both application and platform independent. The fault tolerant network generally includes an active network entity, such as a telecommunication server, and a standby network entity to assume the functionality of the active network entity in the event of a failure of the active network entity. The method of the present invention includes accessing a file within the active network entity, such as through a read or write request of any network application. A  file access request within the active network entity is generated and transmitted to the standby network entity, which also performs the file access request. The standby network entity then generates and transmits a file access confirmation to the active network entity. The active network entity then determines whether the file access request of the active network entity has a corresponding file access confirmation from the standby network entity. When the file access request has the corresponding file access confirmation, indicating that the files are in synchrony between the active and standby network entities, the active network entity then deletes the file access request and the corresponding file access confirmation from memory; but when the file access request does not have the corresponding file access confirmation, indicating a lack of synchrony, the active network entity then generates an error message and transfers the file access request to an error log, for subsequent use.
Patent CA-2283340-A1 (CA)
Title: Process for preparing flexible polyurethane foam
Inventor: HUYGENS ERIC
IPC: C08G101/00
Filed: 1998-02-16
Abstract: Process for making flexible polyurethane foams using MDI and TDI and a polyol composition comprising dispersed particulate material.