baber/WOPTO huggingface dataset:
Patent CA-2216373-A1 (CA)
Title: Reversible scraper blade for cleaning conveyor belt
Inventor: STOLL LEWIS DONALD
IPC: B65G45/12
Filed: 1996-02-22
Abstract: A reversible belt scraper is provided with opposite belt scraping surfaces (22, 24) and is adapted to be reversed by inverting. The belt scraper is formed with a pair of metal side frames (14, 15), and a transversely elongated body (30) is formed as a block of rubber defining the belt scraping surfaces on opposite sides. A pair of fiberboard backing plates (40) are positioned to support the rubber block against forces tending to bend or deflect the rubber.  The fiberboard backing plates wear at a rate faster than the wear rate of the rubber block and assure full contact between the belt and the rubber scraping body. In a further embodiment, ceramic bricks (121) are embedded within the rubber block with wear surfaces at the rubber scraping surface. The rubber, brick and backing plates are formed in modular segments which are stacked end-to-end between the frames and retained by metal slugs (18) which extend through the segments.
Patent CA-2217924-A1 (CA)
Inventor: THOMSON R GLENN
IPC: H01P7/06
Filed: 1997-12-12
Abstract: A device for changing the operating frequency of a microwave filter is mounted in a wall of a cavity of the filter.  The device has a bellows that is located inside the cavity.  The bellows contains an elongated member that extends outside the cavity to an actuator.  The actuator can be temperature dependent and moves the elongated member either further into or further out of the cavity as desired.  An interior end of the elongated member can be connected to the bellows or it can simply be in contact with the bellows without being connected. When the elongated member is in contact with the bellows and is not connected, when the elongated member moves outward, the bellows will return to a rest position due to its inherent spring.  The bellows is sealed from an interior of the cavity.  Filters using the device have one device located primarily for each mode in each cavity of the filter.
Patent CA-2220556-A1 (CA)
Inventor: RAMANATHAN LATA
IPC: C12N9/50
Filed: 1996-05-09
Abstract: L'invention se rapporte à des substrats non structuraux de la polyprotéine du virus de l'hépatite C.
Patent CA-2223729-A1 (CA)
Inventor: SHUBER ANTHONY P
IPC: C12Q1/68
Filed: 1996-06-06
Abstract: The present invention provides primers that allow simultaneous amplification of multiple DNA target sequences present in a DNA sample. Further provided are methods for detecting multiple defined target DNA  sequences in a DNA sample. Methods for high-throughput genetic screening are also provided. In yet another aspect, the present invention provides single-stranded oligonucleotide DNA primers for amplification of a target DNA sequence in a multiplex polymerase chain reaction.
Patent CA-2223871-A1 (CA)
Title: Method of and apparatus for removing a metallic erosion shield from attachment to a helicopter rotor blade
Inventor: GREENSLADE RICHARD DAVID
IPC: B64F5/00
Filed: 1998-01-15
Abstract: A method of removing a metallic erosion shield secured by a layer of non-metallic adhesive to a leading edge structure of a helicopter rotor blade comprising the step of providing an electric field between the metallic component and an electrode, in the presence of an electrolyte between the metallic component and the electrode whereby the erosion shield is removed by an electrochemical process.
Patent CA-2224827-A1 (CA)
Inventor: WANG LEAO
IPC: A63B21/005
Filed: 1997-12-15
Abstract: An improvement to the sprocket retarding belt for exercise equipment, which includes a built-in magnetic-controlled material layer that contains appropriate magnetism inside the retarding-belt structure. Thus, it not only forms an appropriate retarding force through the abrasion between the belt and the sprocket, the magnetic-controlled material layer also produces another stream of magnetic retarding force towards the metal sprocket to further reinforce the regarding energy that can be supplied by the belt to meet the demands in exercise training; in the mean time, it also substantially prolongs the life of the belt.
Patent CA-2225946-A1 (CA)
Title: Bipolar endoscopic surgical scissor blades and instrument incorporating the same
Inventor: SLATER CHARLES R
IPC: A61B18/12
Filed: 1996-06-26
Abstract: A bipolar endoscopic scissors (10) is provided with scissor blades (26, 128) where at least one scissor blade is coated with an electrically nonconductive ceramic from its cutting edge along at least a contiguous portion of its shearing surface. The coated blade is provided with a cutting edge having an obtuse included angle which is preferably between approximately 95 degrees to 140 degrees, and more preferably between 110 degrees and 120 degrees. The blades according to the invention may be configured in several different ways with regard to the number of layers and types of material used, the extent of the ceramic coating, and whether one or both blades are configured in an identical manner. The blades, according to the invention having cutting edges defined by obtuse angles, cut well and provide a good cutting feel to the practitioner, while preventing the ceramic coating from chipping at the cutting edge.
Patent CA-2226248-A1 (CA)
Inventor: CAPARROS RUDOLPH
IPC: F17C13/12
Filed: 1996-07-11
Abstract: A process and apparatus for safely delivering a hazardous fluid substance to a receiving structure includes a supply cylinder (12) containing the fluid substance and having a supply cylinder release port (16); a high pressure containment vessel (20) having a vessel wall (26) for receiving and safely enclosing the supply cylinder (12); a high pressure first tube (22) extending from, and in fluid communication with, the supply cylinder release port (16) to a vessel port (24) in the vessel wall (26); and a vessel valve in fluid communication with the first tube (22) for controlling delivery of the fluid substance from the supply cylinder (12) and from the vessel (20). The vessel valve preferably includes a fluid substance sensing valve assembly (30) mounted in the vessel port (24), for automatically shutting off the flow of the fluid substance at the vessel port (24) upon detection of the fluid substances outside the containment vessel (20). The vessel valve preferably includes a reduced orifice controller (36).
Patent CA-2228544-A1 (CA)
Inventor: GUNASEKERA DAYAL L
IPC: G01V1/30
Filed: 1998-02-04
Abstract: A method and apparatus generates grid cell property information that isadapted for use by a computer simulation apparatus which simulates properties of an earth formation located near one or more wellbores. An interpretation workstation includes at least two software programs stored therein: a first program called "Petragrid" and a second simulation program which is responsive to output data produced from the first "Petragrid" program for generating a set of simulation results. The set of simulation results are displayed on a workstation display monitor of the workstation. The first Petragrid software program will: receive well log and seismic data which indicates the location of each layer of a formation near a wellbore, and then grid each layer of the formation, the grid being comprised of a plurality of cells. The first Petragrid software will then generate more accurate data associated with each cell, such as the transmissibility of well fluid through each cell. The more accurate data for each cell originating from the first Petragrid software will be transmitted to the second simulation program. The second simulation program will respond to the more accurate data for each cell of the grid from the Petragrid software by generating a set of more accurate simulation results for each cell of the grid. The second simulation program will overlay the more accurate simulation result for each cell onto each of the corresponding cells of the grid which is being generated and displayed on the workstation display by the Petragrid software. As a result, the workstation will display each layer of the earth formation where each layer is gridded with a plurality of cells, and each cell has its own particular color which corresponds in numerical value to the particular more accurate simulation result (e.g., pressure or saturation) that corresponds to that cell.
Patent CA-2229046-A1 (CA)
Title: Procede de retraitement d'un gaz contenant de l'ozone, existant dans une installation de blanchiment de pate a papier
Inventor: MINAMI SHUSUKE
IPC: D21C9/153
Filed: 1996-08-06
Abstract: La présente invention concerne un procédé de retraitement d'un gaz contenant de l'ozone, existant dans une installation de blanchiment de pâte à papier. Ce procédé consiste à introduire le gaz dans un épurateur, et à réduire sa teneur en ozone alors qu'il traverse l'épurateur. L'opération de réduction comprend l'envoi d'un milieu alcalin à l'épurateur et le passage du gaz contenant de l'ozone à contre-courant par rapport au milieu alcalin, à l'intérieur de l'épurateur, de manière à mettre en contact intime le gaz contenant de l'ozone et ce milieu alcalin, ce qui rend le gaz sensiblement exempt d'ozone. Le milieu alcalin peut comprendre l'une des substances suivantes: une solution d'hydroxyde de sodium; de la lessive neuve; un filtrat d'un étage postérieur à l'oxygène; une lessive noire faible, ou un filtrat provenant d'un étage d'extraction par voie oxydante de l'installation de blanchiment de la pâte. Le procédé selon l'invention comprend en outre l'évacuation séparée, hors de l'épurateur, du gaz contenant de l'ozone et du milieu alcalin. Ledit gaz peut comporter un effluent gazeux, que l'on a fait réagir partiellement avec une pâte à papier dans un étage de blanchiment, ou bien un gaz de blanchiment frais dont la teneur en ozone va d'environ 6 % à environ 14 % en poids au sein d'un gaz porteur. Un générateur d'ozone fournit directement ce gaz de blanchiment frais à l'épurateur.
Patent CA-2233219-A1 (CA)
Title: Use of carboxylic acids having a sulphur function for promoting skin exfoliation or stimulating epidermal regeneration
Inventor: MAIGNAN JEAN
IPC: A61K8/00
Filed: 1996-10-23
Abstract: PCT No. PCT/FR96/01658 Sec. 371 Date Apr. 29, 1998 Sec. 102(e) Date Apr. 29, 1998 PCT Filed Oct. 23, 1996 PCT Pub. No. WO97/16165 PCT Pub. Date May 9, 1997The use of carboxylic acids having a thioether function, a sulphoxide function or a sulphone function in or for making a cosmetic or dematological composition for promoting skin exfoliation and/or stimulating epidermal regeneration, is disclosed. The use of said composition for controlling intrinsic and extrinsic skin ageing, and a non-therapeutic skin treatment method useful for skin exfoliation, are also disclosed.
Patent CA-2233569-A1 (CA)
Inventor: GRINSHPUN VYACHESLAV SLAVA
IPC: F16L59/14
Filed: 1996-10-02
Abstract: Cette invention porte sur une mousse partiellement durcie ou semi-durcie (2, 12), utilisée pour isoler des tuyaux. Cette mousse semi-durcie, qui est très souple, peut être façonnée autour d'un tuyau (4) longtemps après sa fabrication. La mousse phénolique semi-durcie selon l'invention est une mousse à alvéoles fermées. Cette mousse finit de durcir sous la forme qui lui a été donnée (8, 18). En durcissant, la mousse conserve la forme de la préforme et, si semi-durci, le produit s'avère très souple, une fois complètement durci, ce produit d'isolation est devenu rigide.
Patent CA-2236230-A1 (CA)
Title: Resolver stator structure
Inventor: OHSHITA HIROMI
IPC: G01D5/245
Filed: 1998-04-30
Abstract: In a stator structure of a resolver, an extended insulating portion is formed integrally with an insulation member and is provided with pins.  Stator windings are connected to the pins, and a lead wire or a connector is connected to the pins.  The above arrangement permits automatic assembly, cost reduction and improvement in productivity of the stator structure, as well as the minimization of deterioration of the output characteristics of the resolver which has conventionally occurred.
Patent CA-2236246-A1 (CA)
Inventor: RICHARD ANDREW
IPC: C06B31/28
Filed: 1998-04-29
Abstract: A water resistant blasting explosive comprises an organic carbonaceous fuel, an inorganic oxidizing salt, and particulate filler material, wherein prior to exposing the particulate filler material and the inorganic oxidizing salt to the organic carbonaceous fuel, from about 15 to about 60 wt % of the particulate filler material and the inorganic oxidizing salt are retained on a Tyler 10 sieve, from about 15 to about 60 wt % of the particulate filler material and the inorganic oxidizing salt are retained on a Tyler 14 sieve and from about 20 to about 60 wt % of the particulate filler material and the inorganic oxidizing salt are retained on a Tyler 20 sieve. The explosive is further characterized in that it is effectively free of gelling agents. The explosive has good water resistance and explosive energy.
Patent CA-2236613-A1 (CA)
Inventor: PERRIN LUC HENRI
IPC: C12N15/09
Filed: 1998-05-04
Abstract: The present invention provides a method for increasing the sensitivity of a diagnostic test for the detection of a nucleic acid of an infectious agent in pooled samples of liquid biological material, characterized in that the nucleic acid is selectively precipitated by adding a precipitating agent, whereby the preferred precipitating agent is polyethylene glycol in a molecular weight range of 1'000 to 10'000 at a final concentration of 1 to 5 % (w/v). The precipitation efficiency may be increased by the addition of mono- or divalent salts. Preferred examples of such salts are NaCl or KCl, preferably these salts are added so that the final salt concentration is 200 to 450 mM, most preferably 270 to 325 mM salt. The invention also relates also to the use of the said method in a diagnostic test as well as to kits which are useful for practicing the said method.
Patent CA-2243185-A1 (CA)
Title: Systeme integre de gestion de l'energie des occupants d'un vehicule et procede correspondant
Inventor: WHITE CRAIG W
IPC: B60R21/013
Filed: 1997-02-25
Abstract: La présente invention, qui concerne un système intégré (10) de gestion de l'énergie pour les occupants d'un véhicule et le procédé correspondant (100), assure la détection d'impact frontal et latéral, la détermination de la position et du type (106) de l'occupant, la régulation du tensionnement des ceintures de sécurité (104, 108) ainsi que le déploiement d'un ou plusieurs coussins de sécurité gonflables (114) à partir d'un seul module placé sur le pied milieu du pavillon. La gestion dynamique en temps réel de l'énergie des occupants permet d'optimiser l'absorption d'énergie par tensionnement des ceintures de sécurité en tant que première réaction en cas de collision, et permet de provoquer, dans la foulée, le déploiement, suivant les besoins, d'un ou de plusieurs coussins de sécurité gonflables.
Patent CA-2244096-A1 (CA)
Inventor: KELDERS JOHANNES HUBERTUS JOZE
IPC: B65D83/00
Filed: 1997-01-23
Abstract: The invention relates to a device (1) for dispensing a fluid comprising a container (2) with a base (3), a plurality of side walls (4) connecting thereto and an upper wall (5). The container has two closable outlet openings (6, 7) arranged on oppositely located sides. An applicator (8) is placeable in one of the openings, while the other opening has a protruding needle-like dispensing member (9). The base of the container is situated between the outlets (6, 7). In this dispensing device, when the needle-like dispensing member is placed on a surface, the outlet with the applicator (8) is situated above the level of the fluid present in the container, whereby leakage out of this outlet opening is impossible.
Patent CA-2246517-A1 (CA)
Title: Sintering electrode
Inventor: ALTMANN BERNHARD
IPC: H01J9/04
Filed: 1997-11-11
Abstract: A sintering electrode made of a high-melting metal (tungsten, for example) is made of a metal powder with spherical grains of a well defined grain size. The average grain size equals 5 to 70 µm. The grain size distribution fluctuates by maximum 20 % around the average grain size.
Patent CA-2246560-A1 (CA)
Title: Methods of administering an ampa receptor antagonist to treat dyskinesias associated with dopamine agonist therapy
Inventor: MENNITI FRANK SAMUEL
IPC: A61K31/135
Filed: 1998-09-03
Abstract: The invention relates to a method of treating dyskinesias associated with dopamine agonist therapy in a mammal which comprises administering to said mammal an effective amount of an antagonist of the AMPA receptor. Dopamine agonist therapy, as referred to in the present invention, is generally used in the treatment of a central nervous system disorder such as Parkinson's disease.
Patent CA-2247422-A1 (CA)
Title: Method and apparatus for handling of a person in a rocking movement in relation to a bed
Inventor: HAUGS AUDUN
IPC: A61G7/057
Filed: 1997-02-25
Abstract: A process and an arrangement handles a person (35) in a rocking movement on a couch (32) relative a base (26) by means of pressure medium - driven actuating means (30, 31; 30', 31') in the couch (32). The couch (32) is converted from a substantially planar or slightly bent starting position, with the person (35) resting against the couch (32), to a C-shaped holding position, heavily bent about the longitudinal axis of the person. The person (35) is rolled relative to the base (26) in a rolling movement backwards and forwards on the base (26) maintained in said C-shaped holding position.
Patent CA-2248639-A1 (CA)
Title: Paper pulp screen cylinder
Inventor: MUNRO STEPHEN G W
IPC: D21D5/06
Filed: 1997-03-03
Abstract: A plurality of like wedge bars (36) are formed with a groove (46) between two lands (48). The wedge bars (36) are assembled into a cylindrical screen (24), with the grooves (46) defining screening slots (30) of a uniform width. The wedge bars (36) may be electron beam welded or furnace brazed to support rings (44). Alternatively, the wedge bars (36) may be held in place by slots in support rings (44) and circumferential clamping applied by jack wedge assemblies (58). Multiple cylindrical segments (123) may be connected together into a single screen cylinder (24) by an ear (125) and slot (133) arrangement. The screen cylinder so formed may have slots (30) of 0.004 inches or less in width, and may be formed of a wide range of wear and corrosion resistant materials.
Patent CA-2252353-A1 (CA)
Inventor: CHAN SEK KWAN
IPC: C06C7/00
Filed: 1998-11-04
Abstract: Deflagration to detonation transition (DDT) detonators are provided which are essentially free from primary explosives. The detonators utilize an intimate mixture of a large particle sized porous, powdered explosive such as PETN, and smaller particle size, high-burn-rate, pressurizing initiator such as a mixture of potassium picrate and potassium perchlorate. The smaller particle sized pressurizing initiator is located within the interstitial spaces of the larger powdered explosive. This mixture is able to reliably initiate an adjacent transition portion, or base charge while reducing the need for heavy confinement. The mixture can also be used directly in surface detonator applications. Improved performance and safety during manufacture of detonators is achieved.
Patent CA-2253882-A1 (CA)
Inventor: LOHAU JENS
IPC: G03F1/08
Filed: 1997-05-03
Abstract: The invention relates to a lithographical process for production of nanostructures on surfaces. Said process is characterised in that stabilised nanometer-scale transition-metal clusters or colloids of metals of the groups 4, 5, 6, 7, 8, 9, 10, 11 or 12 of the periodic system, their stabilised metal oxide or metal sulphide analogues, polynuclear metal carbonyl clusters with stochiometrically defined compositions, or polynuclear metal clusters with stochiometrically defined compositions or with bridges consisting of main group elements each in the form of a solution are applied to a surface in the form of a film which is illuminated selectively by an electron beam. After the non-illuminated parts of the film have been washed off, and then optionally annealed, defined structures are produced on the surface in the nanometer range.
Patent CA-2254185-A1 (CA)
Title: Panty liner protecting absorbent device
Inventor: ALVAREZ ALFONSO FRANCO
IPC: A61F13/15
Filed: 1998-11-20
Abstract: An absorbent article such as a panty liner is described. The absorbent article here described provides improved protection for user underwear during normal flow periods of time. The absorbent article is configured such that it provides additional protection to the user panty crutch to avoid staining of the garment due to the user's normal flow.
Patent CA-2254760-A1 (CA)
Title: Friction welded drill rod and method for manufacturing the rod
Inventor: LUNDELL LARS-GUNNAR
IPC: B23K20/24
Filed: 1997-06-10
Abstract: The present invention relates to a friction welded product for rock drilling, including a first component (25) and a second component (22) of parent material joined by a friction weld (27). The components have a central inner passage (26). Each component (22, 25) is heat treated at low temperature and is made from a steel having a chemical composition such that the core hardness after nitrocarburizing of the component (22, 25) is at least 390 HV1. The core hardness of the most tempered parts of the heat affected zone close to the weld (27) is about the same as for the core hardness of the rod when cooled to room temperature of at least 390 HV1. The first component (25) comprises a threaded portion (11) and a clearance portion (12) which are pretreated against corrosion fatigue preferably by nitrocarburizing the first component (25) separately and then friction welding it to the second component (22), such as a rod (13). The present invention further relates to a method for manufacturing a friction welded drill rod for rock drilling.
Patent CA-2256080-A1 (CA)
Inventor: BARA ISABELLE
IPC: A61K8/00
Filed: 1998-12-24
Abstract: "Utilisation d'un solvant polyhalogéno organique volatil, dont l'atome d'halogène est le fluor, dans une composition cosmétique de maquillage, de protection solaire ou de soin des ongles. La composition contient ledit solvant polyhalogéno organique en tant qu'accélérateur de séchage, celui-ci ayant une pression de vapeur supérieure à 20 mba (2000 Pa) à 25.degree.C. La composition qui peut se présenter sous forme anhydre ou sous forme d'une émulsion, conduit à un séchage très rapide.
Patent CA-2256506-A1 (CA)
Inventor: TRIEBES THOMAS GREGORY
IPC: D01D5/098
Filed: 1997-06-19
Abstract: There is provided a fabric which has been produced in a pneumatic chamber which has tiny grooves over an effective amount of its fluid contacting surface. Also provided is a method of producing a web having greater uniformity by producing it with pneumatic chambers having surface grooves. Fabrics produced in such a manner have greater uniformity when measured by permeability, basis weight or CD and MD strength properties.
Patent CA-2256672-A1 (CA)
Title: Biometric recognition using a classification neural network
Inventor: BRADY MARK J
IPC: G06T7/00
Filed: 1997-04-21
Abstract: A biometric recognition system involves two phases: creation of a master pattern set of authorized users biometric indicia and authentication using a classification neural network. To create the master pattern set, an image of an authorized biometric user's indicia is divided into a plurality of regions of interest or "features". The system determines which features are the most useful for identification purposes. Master patterns are then created from these master features, thus creating a master set. During authentication, a sample pattern set of a user to be authenticated is similarly created. A neural network is used to compare the sample pattern set with the master pattern set to determine whether the user should be authenticated.