baber/WOPTO huggingface dataset:
Patent CA-2264250-A1 (CA)
Title: Tablet with controlled release of alfuzosin hydrochloride
Inventor: GRENIER PASCAL
IPC: A61K9/20
Filed: 1997-08-22
Abstract: Pharmaceutical tablet intended for the oral route, for the controlled release of alfuzosin hydrochloride into the proximal segments of the gastrointestinal tract, this tablet being characterized in that it consists of: a) a first layer 1 having the property of swelling considerably and quickly on contact with aqueous biological fluids, the said layer being produced by compression of a mixture or of a granulate comprising hydrophilic polymers constituting from 5.0 to 90% and preferably from 10 to 85% of the weight of the layer, b) a second layer 2 adjacent to the first layer, in which the alfuzosin hydrochloride is conveyed, this layer being formulated with hydrophilic polymers and with other auxiliary substances, in order to give the preparation suitable properties of compressibility and in order to allow the release of alfuzosin hydrochloride within a predetermined time period, c) and optionally a third layer 3 obtained by compression and applied to the layer 2, generally consisting in particular of hydrophilic polymers which gel and/or swell and which may then optionally be broken down and having a barrier function which modifies the release of the alfuzosin hydrochloride from the layer 2, the layer 3 being primarily highly impervious to passage of the active substance.
Patent CA-2265701-A1 (CA)
Inventor: HASLANGER PAUL
IPC: B29C63/02
Filed: 1997-10-15
Abstract: A foam-fabric laminate (14, 15) and an air impervious adhesive film (16) are placed over a mold (18); the adhesive is drawn against the foam and the fabric urged against the mold by vacuum. A foam pad (12) is placed adjacent to the adhesive film, the film heated and diffused into the foam of the pad and the laminate and allowed to cure. The foam layer of the laminate is formed as the reaction product of a polyether polyol or a graft polyether polyol with about 30 to 60 parts by weight of an MDI or polymeric MDI/TDI blended isocyanate or mixtures thereof, about 1.5 to 3.0 parts by weight water as a blowing agent, about 0.05 to about 0.90 parts by weight amine catalyst and about 0.5 to about 1.5 parts by weight silicone surfactant, wherein all amounts are based on 100 parts by weight polyol.
Patent CA-2267203-A1 (CA)
Title: Braking device
Inventor: SAKAMOTO SHIGERU
IPC: B60T13/68
Filed: 1997-09-19
Abstract: Connected midway a primary passage (18), which connects a master cylinder (14) and a braking cylinder (10) to each other, is a discharge side of a pump (16) through an auxiliary passage (20), and provided on a portion of the primary passage (18) between a connection of the primary passage (18) and the auxiliary passage (20) and the master cylinder (14) is a pressure regulating valve (22) adapted to permit a working liquid from the pump (l6) to leak to the master cylinder (14) when a discharge pressure of the pump (16) tends to be higher than a set value relative to a master cylinder liquid pressure. The pump (16) is actuated during a braking operation and when it is necessary to generate a higher liquid pressure in the braking cylinder (10) than the master cylinder liquid pressure.
Patent CA-2270207-A1 (CA)
Inventor: AMAL ROSE
IPC: C02F11/14
Filed: 1997-10-29
Abstract: A sludge dewatering control system (10) which relies on a determination of sludge structure after addition of an additive as a predictor of dewaterability of said sludge by dewatering means. The system (10) relies on a method of control of dewatering of sludge, the method comprising obtaining a relationship (25) between particle structure and cake solids content of the sludge (15), continuously monitoring the particle structure of the sludge so as to provide a continuous determination of the cake solids content of the sludge and adding an additive to the sludge as a function of the cake solids content so as to control the dewatering characteristics of the sludge (15).  Sludge structure is determined by reference to fractal dimension of the particles making up the sludge.
Patent CA-2270344-A1 (CA)
Title: Refining of edible oil rich in natural carotenes and vitamin e
Inventor: UNNITHAN UNNIKRISHNAN RAMACHAN
IPC: C11B3/12
Filed: 1996-11-15
Abstract: The invention discloses a process for the production of a natural carotene rich refined and deodorised oil by subjecting the oil to a pressure of less than 0.060 mbar and to a temperature of less than 200°C and wherein the process includes the steps of distilling the oil in a short-path distiller at a temperature range of 160°C-210°C and at pressures of 0.003 mbar to 0.08 mbar and removing free fatty acids (FFA) in the oil by condensation within the distiller. The FFA is removed by subjecting the mixture of the oil and the FFA to an internal condensor system operating at a temperature greater than the melting point of FFA in the oil. The process yields in refined, deodorised oil, in particular palm oil where the carotene and Vitamin E contained the feed oil is substantially retained in the processed oil.
Patent CA-2271812-A1 (CA)
Title: Automatic chemistry analyzer with sample cup stopper piercing assembly
Inventor: SOHN CHUL
IPC: G01N35/02
Filed: 1997-11-13
Abstract: The invention provides an apparatus for piercing the cap of a container. The apparatus includes a blade support arm slidably attached to one or mare vertical posts, a blade attached vertically below the blade support arm, and a cap retainer arm slidably attached to the vertical post such that the cap retainer arm is capable of travel along the posts between an upper position wherein the cap contacting surface is located above the elevation of the container cap and a lower position wherein the cap contacting surface is located at the elevation of the container cap. The cap retainer arm has an opening through which the blade can pass. A biasing member biases the cap retainer arm towards its lower position. The cap retainer arm is positioned below the blade but above the blade support arm contact surface. Thus, when the blade support arm slides upwardly, the blade support arm contacts the cap retainer arm and pushes the cap retainer arm upwardly from its lower position to its upper position.
Patent CA-2272999-A1 (CA)
Title: Well fluid additive
Inventor: BURTS BOYCE D JR
IPC: C09K8/20
Filed: 1997-11-24
Abstract: A drilling fluid additive to reduce loss circulation includes comminuted rice fraction and corn cobs, and includes ground at least one of ground wood fiber, ground nut shells, ground paper and shredded cellophane. A method of treating a drilling fluid includes contacting such drilling fluid additive with the base drilling fluid to form well fluid. A method of operating a well includes circulation of such a well fluid into and out of a borehole.
Patent CA-2273409-A1 (CA)
Inventor: AZUMA YOUJI
IPC: B23H5/06
Filed: 1999-06-01
Abstract: To provide an electrolytic integrated polishing method for external surface of metallic tubes, wherein both dimensional precision such as roundness or the like and product yield can be improved, and aluminum alloy photosensitive drum substrates prepared thereby.      A metallic tube, both ends of which are supported, is positively charged and rapidly rotated about the axis thereof. More than one grindstone are pressed with a constant pressure against the external surface of the metallic tube from opposite directions or radial directions having the rotation axis as tile center of radiation. Negative pole electrodes are disposed so as to sandwich the grindstones along a circular direction to perform electrolytic integrated polishing by supplying electrolyte to the external surface of the metallic tube.      High-precision mirror processing of the external surface of the metallic tube can be performed by integrating abrasion effect for eliminating passivation coating formed on the external surface of the metallic tube by the grindstones and intensive electrolytic elution by the electrolyte.
Patent CA-2273579-A1 (CA)
Title: Binder for coating composition
Inventor: VIVIAN SIMON EDWARD
IPC: C08F2/26
Filed: 1999-05-27
Abstract: A binder for a coating composition is obtainable as the reaction product of a carboxyl-terminated fatty acid ester with an ethylenically unsaturated carboxylic acid and an ethylenically unsaturated carboxylic acid ester. The carboxylic fatty acid ester is produced by reaction of an autoxidisable fatty acid and a polyol, with modification to introduce at least one terminal carboxyl group. The reaction is optionally effected in an organic solvent which is substantially removed at the end. The material is neutralised with a base to render it water--soluble. Thixotropy can be endowed by an amine/(poly)isocyanate final reaction stage to prior neutralisation.
Patent CA-2273907-A1 (CA)
Title: Composition of a surface-treatment agent used for metallic material and the treating method
Inventor: NAGASHIMA YASUHIKO
IPC: C23C22/68
Filed: 1998-10-02
Abstract: A surface treatment composition for metallic materials which comprises: (A) a cationic ingredient comprising bivalent or higher ions of a metal selected among elements including manganese; (B) an acid ingredient comprising at least one member selected among (1) fluorinated acids containing at least four fluorine atoms and an element selected among elements including titanium, (2) phosphoric acid, and (3) acetic acid; (C) a silane coupling agent having at least one reactive functional group selected among functional groups including amino groups each containing active hydrogen; and (D) a water-soluble polymer ingredient represented by general formula (I).
Patent CA-2274843-A1 (CA)
Inventor: RAMESH RAJARAM
IPC: H04B1/707
Filed: 1997-12-05
Abstract: According to the present invention, the effects of the transmission medium on transmitted information symbols are estimated separately from other effects, e.g., those associated with receive and transmit filters, using knowledge of the pulse shaping. The medium response estimate is then used to detect information symbols. Previously, receivers had used estimates of the composite channel to detect symbols. This, however, assumed uncorrelated noise, which is not always the case.
Patent CA-2274969-A1 (CA)
Title: Apparatus for sensing vehicles
Inventor: HOEKMAN EARL B
IPC: G01V3/10
Filed: 1997-04-17
Abstract: An underground vehicle sensing system (20) extends below a vehicle travel surface to detect the presence of a vehicle. A conduit (24) extends substantially horizontally underground from an access hole placed at the side of the vehicle travel surface. A plurality of sensors (50) are spaced apart in the conduit to detect localized changes in the magnetic field. A plurality of sections house the probes and wiring to orient and position the probes. Sections detachably clip together to form a lightweight support structure and may be added one by one through the access hole. Lightweight extension members are utilized in some configurations between the support sections for positioning and supporting the probes.
Patent CA-2276498-A1 (CA)
Title: Guide mechanism
Inventor: THOMAS ROGER
IPC: A01D34/84
Filed: 1999-06-25
Abstract: A lawn mower comprising a cutting deck (2) mounted on castor wheel assemblies wherein the deck is mounted on four castor wheel assemblies (8, 10, 12, 14) each located in the region of a corner ( 18, 20, 22, 24) of the cutting deck (2) preferably with two castor wheel assemblies (8, 10) located towards the front of the cutting deck (2) and two are located towards the rear of the cutting deck. One pair of castor wheel assemblies (8, 10) mounted on one edge of the cutting deck (2) are located closer to each other than the other pair of castor wheel assemblies (12, 14) mounted on the opposite edge of the cutting deck to form a trapezium. Ideally there is at least one friction reduction mechanism (36, 38) in the form of either a roller or rotatable ball is mounted on at least one side of the cutting deck (2).
Patent CA-2277731-A1 (CA)
Title: Lithium secondary battery
Inventor: KITOH KENSHIN
IPC: H01M4/133
Filed: 1999-07-12
Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, a separator, an internal electrode body, and an organic electrolyte. The positive electrode and the negative electrode are wound through the separator so that the positive electrode and the negative electrode are not brought into direct contact with each other. A total thickness (µm) of electrode substrates is divided by a total thickness (µm) of electrode active material layers, and the resultant ratio is a total thickness ratio, which total thickness ratio has been set to be not less than 0.045 and not more than 0.31. The lithium secondary battery reduces internal resistance to attain good charging-discharging characteristics and to obtain an high output and a huge current.
Patent CA-2278457-A1 (CA)
Inventor: KONGSGAARD BJARNE
IPC: A61G9/00
Filed: 1998-01-19
Abstract: There is described a grating for a stable floor. The grating is made with grating bars (6) and with spaces (7) disposed therebetween for the passage of animal droppings. The grating bars (6) form a floor surface on which the animals stand. The grating (1) is divided into sections (8, 9) at the top side. The sections (8, 9) are upwards curving (8) and downwards curving (9), respectively. The single sections are divided by a smooth transition (10).  With such a grating no sharp edges, beads, or the like occur which may give rise to pressure damages and which may give rise to accumulation of animal droppings. The grating will thus be environmentally friendly and have a self-cleaning effect.
Patent CA-2285078-A1 (CA)
Title: Method and apparatus for friction stir welding
Inventor: KNIPSTROEM KARL-ERIK
IPC: B23K20/26
Filed: 1998-04-03
Abstract: The invention concerns a friction stir welding method according to which the workpieces (2, 3) to be welded are positioned on a work-table (7) and by means of clamping means (5, 6) clamped to one another and/or to the work-table during the welding. A rotating welding means (12, 13) is arranged to move along a joint between the workpieces while being pressed against said workpieces during the welding. Additional heat is supplied to the joint prior to and/or during the welding operation, in excess of the frictional heat generated in the joint from the rotation of the welding means and of any other heat that may be supplied to the joint in any other manner by the welding means. The invention likewise concerns an apparatus for friction stir welding, comprising a heating element (70) for supply of additional heat to the joint prior to and/or during the welding operation, in excess of the frictional heat generated in the joint from the rotation of the welding means and of any other heat that may be supplied to the joint in any other manner by the welding means.
Patent CA-2285130-A1 (CA)
Title: Fibers having improved dewatering characteristics for press felts
Inventor: DIAZ-KOTTI MICHELLE
IPC: D21F7/08
Filed: 1999-10-06
Abstract: A press felt for use in the press section of a papermaking machine includes a base fabric and at least one layer of an assembly of fibers, preferably forming a carded web or batt, the assembly of fibers containing a plurality of fibers having a deep grooved configuration. The deep-grooved fibers of the press felt provide improved dewatering properties to the press felt as compared to conventional round monofilaments of the same denier currently employed as the batt in press felts used in the press sections of papermaking machines. A method for at least partially dewatering a sheet of paper fibers within the press section of a papermaking machine includes positioning the sheet of paper fibers on the press felt described herein, transporting the sheet of paper fibers through the press section, and pressing the sheet to at least partially remove the water therefrom.
Patent CA-2288367-A1 (CA)
Inventor: TANG JUN
IPC: F22B1/02
Filed: 1999-11-02
Abstract: A method of hydraulically prestraining the tubes of a once-through steam generator by welding the tubes to their respective tubesheets poor to the application of hydraulic expansion to produce tensile stresses which shorten the tubes an equal and predetermined amount to increase the margin to buckling and increase the natural frequency of the tubes reducing flow induced vibration.
Patent CA-2291791-A1 (CA)
Inventor: BOHLIN LEIF
IPC: F16C39/06
Filed: 1998-05-26
Abstract: L'invention concerne un dispositif porteur de type aimant destiné à des instruments et équivalent et au support sans contact d'un élément par rapport à un autre élément à l'aide de champs magnétiques. Un élément peut tourner par rapport à l'autre sur au moins une partie d'un tour complet. La nouveauté réside dans le fait que les dispositifs magnétiques qui sont destinés à maintenir l'élément rotatif sensiblement centré par rapport à l'élément stationnaire, sont décalés de manière à produire non seulement des composantes de force agissant radialement mais aussi des composantes de force agissant axialement, polarisant ainsi l'élément rotatif dans une direction axiale. En outre, le dispositif de connexion reliant l'élément rotatif à l'élément stationnaire et autorisant ce dernier à tourner au moins sur une partie d'un tour, est placé sur l'axe de rotation, de façon à maintenir la partie rotative dans sa position décalée correcte.
Patent CA-2292088-A1 (CA)
Title: Method and apparatus for testing an arcing fault circuit interrupter
Inventor: BETTIS CHARLES D
IPC: G01R31/327
Filed: 1999-12-13
Abstract: An arcing fault circuit interrupter testing method includes the steps of producing a simulated line to neutral arcing fault signal comprising a relatively large di/dt signal, applying the signal to a branch circuit, and producing an observable indication of operation or lack of operation of an arcing fault circuit interrupter in the branch circuit in response to the simulated line to neutral arcing fault signal. A test apparatus carries out the method.
Patent CA-2292666-A1 (CA)
Inventor: FISHER WILLIAM H
IPC: B60C25/00
Filed: 1998-07-14
Abstract: Apparatus usable with a tire changing machine (10) includes a protective arm (28) that may be pivoted about a shaft (36) having an axis that is generally parallel to the radial axis of the wheel and tire assembly (22) when positioned in the tire changing machine. Pivoting of the arm permits the second section of the arm to be adjacent, and substantially parallel, to the circumferential surface of the tire and the first section to be adjacent, and substantially parallel, to the side wall surface of the tire. The arm thereby forms a safety barrier against the release of components of the wheel and tire assembly.
Patent CA-2294620-A1 (CA)
Title: Dispositif de refroidissement d'un reducteur de vitesse de turbomachine
Inventor: FRANCHET MICHEL FRANCOIS RAYMO
IPC: B64D33/10
Filed: 2000-01-05
Abstract: Pendant les phases de vols à vitesse élevée, comme pendant les phases de parking, ou de roulage à faible vitesse, le dispositif permet de refroidir le lubrifiant du réducteur de vitesse du turbomoteur d' un aéronef. Il comprend principalement une entrée d'air (10) constituée d'une fente en forme de secteur circulaire alimentant une conduite d'amenée d'air (11) débouchant sur un radiateur (16) traversé par le lubrifiant. L'air est dégagé par une conduite d'évacuation (13) débouchant dans la tuyère (9) de la turbomachine. Un volet (15) et un éjecteur/mélangeur (18) permet de ralentir ou d'accélérer le débit d'air dans le dispositif. Application aux turbopropulseurs et aux turboréacteurs à grand taux de dilution de double flux de grande puissance, munis d'un réducteur de vitesse.
Patent CA-2295594-A1 (CA)
Title: A method of reducing signal coupling in a connector, a connector and a cable including such a connector
Inventor: BOLOURI-SARANSAR MASUD
IPC: H01R13/6466
Filed: 1998-07-10
Abstract: A method of reducing signal coupling in a connector for the transfer of balanced electrical high frequency signals, said connector comprising contact springs (5) and terminals (4) as well as a plurality of pairs of conductors arranged in an insulation member (9) to connect the contact springs (5) and the terminals (4), each said pair of conductors being capable of transferring one of the balanced signals. The pairs of conductors in the insulation member are arranged in two mutually spaced layers in such a manner that each of the two conductors (6) belonging to a pair is arranged in a layer of its own, and that the insulation member (9) is made of at least two dielectrics with different permittivity. The invention also relates to a connector and a connecting element for the transfer of balanced electrical high frequency signals as well as a cable terminated by a connector according to the invention at one or both ends.
Patent CA-2296189-A1 (CA)
Title: System for teleconferencing in which collaboration types and participants by names or icons are selected by a participant of the teleconference
Inventor: BURNETT GERALD J
IPC: H04L12/18
Filed: 1994-10-03
Abstract: A multimedia collaboration system that integrates separate real-time and asynchronous networks--the former for real-time audio and video, and the latter for control signals and textual, graphical and other data--in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio/video/data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio/video.
Patent CA-2296625-A1 (CA)
Inventor: FALLICK HARRY
IPC: A61K8/72
Filed: 2000-01-18
Abstract: A sweat resistant sunblock and antioxidant composition for protection against a broad spectrum of radiation. The composition contains micronized and ultramicronized titanium particles, micronized dermatologically acceptable metal oxides, micronized talc, sunblocking polymers, antioxidants and a selenium yeast complex.
Patent CA-2296907-A1 (CA)
Inventor: MONICO DOMINICK LOUIS
IPC: B42D15/00
Filed: 2000-01-25
Abstract: An assembly of preprinted notice documents having a carrier substrate and a plurality of notice documents wherein each notice document has a machine readable indicia containing a depot identification code and/or a delivery person identification code. Each notice document also has a repositional adhesive layer for permitting selective removal and affixing of a notice document. The invention further includes a method of using such a notice document to deliver a package.