baber/WOPTO huggingface dataset:
Patent CA-2191497-A1 (CA)
Title: Skate sharpening apparatus and method
Inventor: EVANS ROBERT M
IPC: A63C3/12
Filed: 1996-11-28
Abstract: An apparatus and method for sharpening skate blades operate by measuring the length of a skate blade, determining a predetermined profile corresponding to a desired radius of curvature for the blade, and coordinating the motion of a grinding wheel and the blade to grind the blade according to the predetermined profile.  A grinding force is applied by the grinding wheel against the blade using a stepper motor coupled through a screw drive, thereby not allowing the grinding wheel to chatter or bounce against the blade.  In addition, the blade is clamped end-to-end by a clamping assembly that also determines the length of the blade via the position of the clamp.
Patent CA-2194010-A1 (CA)
Title: Pulsatile delivery systems of biologically active agents using electro voltage pulsing for controlling membrane permeability
Inventor: WONG OOI
IPC: A61N1/32
Filed: 1995-06-23
Abstract: The invention relates to a method for pulsed transport of a substance through tissue, the method comprising the steps of: (a) applying at least one electrical pulse to the tissue causes electroporation of the tissue region, the electrical pulse being applied for an electroporation pulse duration, the electroporation pulse duration being shorter than the driving force duration;  (b) applying a driving force to the region of tissue whereby the driving force causes the substance to be transported through the tissue for a driving force duration; and (c) repeating step (a) during the driving force duration.
Patent CA-2194673-A1 (CA)
Title: A conjugate between a modified superantigen and a target-seeking compound and the use of the conjugate
Inventor: ABRAHMSEN LARS
IPC: A61K47/48
Filed: 1995-06-07
Abstract: A conjugate comprising (a) a biospecific affinity counterpart (target-seeking group) that binds to a predetermined structure and (b) a peptide that (i) contains an amino acid sequence that is derived from a superantigen, and (ii) has the ability of binding to a V.beta. chain of a T-cell receptor, and (iii) has a modified ability to bind to a MHC class II  antigen compared to the superantigen from which the peptide is derived, which parts are covalently linked together.
Patent CA-2199502-A1 (CA)
Title: Antiviral nucleoside analogues containing a substituted benzimidazole base attached to a carbocyclic ring
Inventor: TOWNSEND LEROY B
IPC: A61P31/12
Filed: 1995-09-11
Abstract: Antiviral nucleoside analogues contain a substituted benzimidazole base attached to a carbocyclic ring in place of the conventional sugar residue. In formulae (I) and (I-1), R1 is H, CH3 or CH2OH; R2 is H or OH; R3 is H or OH;  or R2 and R3 together form a bond; R4 is amino, cyclopropylamino, cyclobutylamino, isopropylamino, tert-butylamino or -NR8R9 where R8 and R9 together with the nitrogen atom to which they are attached form a 4, 5 or 6-membered heterocyclic ring; R5 is H and R6 and R7 are Cl, excluding the compound (~)-(1R*, 2S*, 3S*, 5S*)-5-[5,6-Dichloro-2-(cyclopropylamino)-1<u>H</u>-benzimidazol-1-yl]-3-(hydroxymethyl)-1,2-cyclopentanediol and provided that at least one of R1, R2 and R3 is or contains OH. The compounds have activity against herpes virus especially cytomegalovirus and also hepatitis B virus infections.
Patent CA-2199805-A1 (CA)
Inventor: MELNICK LAURENCE M
IPC: C12Q1/68
Filed: 1995-09-18
Abstract: Procédé d'identification in vitro de mutants de la protéase du VIH, distincts, de la première génération, résistants aux médicaments et biologiquement actifs, pouvant apparaitre in vivo en réponse à un médicament ciblé contre eux, consistant: (a) à préparer, en présence du médicament une bibliothèque de tous les premiers mutants de la première génération de la protéase en différant par substitution de un à trois aminoacides, chacun des mutants de la protéase étant produit en tant que partie d'une polyprotéine avec une transcriptase inverse; (b) à isoler les mutants biologiquement actifs de la protéase résistant aux médicaments par un test d'activité de la transcriptase inverse; et (c) à identifier les changements distincts des aminoacides entraînant la résistance aux médicaments des mutants actifs de la protéase ainsi isolés. Procédé d'évaluation in vitro de l'efficacité d'un médicament contre un mutant biologiquement actif de type sauvage de la protéase du VIH consistant (a) à combiner le médicament à une polyprotéine comprenant une protéase inactive du VIH, la transcriptase inverse du VIH, et un ou plusieurs sites de coupure de la protéase; (b) à ajouter une protéase mutante biologiquement active, ou de type sauvage, (c) à tester la libération de la transcriptase inverse compte tenu qu'une activité de la transcriptase inverse indique que le médicament n'est pas efficace contre la forme mutante ou de type sauvage de la protéase du VIH testée.
Patent CA-2204168-A1 (CA)
Title: Method and apparatus for seismic signal processing and exploration
Inventor: MARFURT KURT J
IPC: G01V1/30
Filed: 1996-09-30
Abstract: A method, a map and an article of manufacture for the exploration of hydrocarbons. In one embodiment of the invention, the method comprises the steps of: accessing 3D seismic data; dividing the data into an array of relativey small three-dimensional cells; determining in each cell the semblance/similarity, the dip and dip azimuth of the seismic traces contained therein; and displaying dip, dip azimuth and the semblance/similarity of each cell in the form of a two-dimensional map. In one embodiment, semblance/similarity is a function of time, the number of seismic traces within the cell, and the apparent dip, and apparent dip azimuth of the traces within the cell; the semblance/similarity of a cell is determined by making a plurality of measurements of the semblance/similarity of the traces within the cell and selecting the largest of the measurements. In addition, the apparent dip and apparent dip azimuth, corresponding to the largest measurement of semblance/similarity in the cell, are deemed to be estimates of the true dip and true dip azimuth of the traces therein. A color map, characterized by hue, saturation and lightness, is used to depict semblance/similarity, true dip azimuth and true dip of each cell; true dip azimuth is mapped onto the hue scale, true dip is mapped onto the saturation scale, and the largest measurement of semblance/similarity is mapped onto the lightness scale of the color map.
Patent CA-2204630-A1 (CA)
Inventor: REYNOLDS BRENT A
IPC: A61K38/18
Filed: 1995-11-14
Abstract: La présente invention concerne la régulation de la prolifération in vitro et in vivo de cellules souches neurales multipotentes à l'aide de compositions composées de divers facteurs biologiques. Elle concerne plus particulièrement un procédé et des compositions thérapeutiques permettant la régulation du nombre de cellules précurseurs qui sont produites par la division de cellules souches neurales, par l'exposition desdites cellules souches à des facteurs biologiques spécifiques ou à des combinaisons de tels facteurs.
Patent CA-2206309-A1 (CA)
Title: Integrated process for the production of reformate having reduced benzene content
Inventor: SHIH STUART SHANSEN
IPC: C10G59/02
Filed: 1995-11-07
Abstract: An integrated process for providing a gasoline boiling range reformatecontaining product produced from naphtha comprises: (1) pretreating a raw naphtha feedstream containing benzene by contacting with a hydrodesulfurization catalyst thereby forming H2S and thereafter cascading said feedstream over a noble metal-containing porous crystalline inorganic oxide catalyst comprising pores having openings of 12-member rings under conditions sufficient to effect benzene saturation, thereby providing a pretreated effluent of reduced benzene content; (2) dehexanizing the pretreated effluent to provide a C6-hydrocarbon-containing overhead stream and a bottoms stream containing C7+ hydrocarbons; (3) reforming said bottoms steam to form a reformate stream; and (4) combining said reformate stream and said C6-hydrocarbon-containing overhead steam to provide a combined gasoline boiling range product.
Patent CA-2208915-A1 (CA)
Inventor: ADAMS JOHN T
IPC: G06F1/26
Filed: 1997-06-27
Abstract: A monitoring device is provided to track the characteristics of the input power signals to assure the power signals are in an optimal range for microcontroller operation. Additionally, the monitoring device cooperates with the microcontroller to provide a watchdog function which serves as a self-check for the microcontroller. Additionally, the monitor circuit will help to provide timing information to the microprocessor and will provide an A to D comparator for use in performing A to D conversions.
Patent CA-2210764-A1 (CA)
Title: Personal communications via low-orbiting moving and geostationary satellites
Inventor: BLACHIER BRUNO
IPC: H04W84/02
Filed: 1996-01-16
Abstract: Device providing high reception capacity for portable or mobile stations using low-orbiting satellites. The device uses one geostationary satellite (or several) transmitting in broadband to the portable and mobile station operators. Only the data path to the portables and mobiles utilizes the geostationary satellite or satellites, while information transmitted by the portables and mobiles utilizes low-orbiting satellites. The device allows the use of multimedia at the portables and mobiles.
Patent CA-2210778-A1 (CA)
Title: Sliding gate valve for a vessel containing molten metal
Inventor: TOALDO WALTER
IPC: C21C5/46
Filed: 1997-07-17
Abstract: A sliding gate valve (20) for a vessel containing molten metal including a housing frame (22), in which a refractory base plate (25) and a refractory sliding plate (26), which is sealingly pressable against the latter by means of spring element (56) and is arranged in a slider unit (23), are contained. The housing frame (22) is longitudinally movably mounted together with the sliding plate (26) and the base plate (25) beneath the outlet (12) on guide tracks (52) which extend transverse to the outlet and are fastened to the vessel (10) and is released from the vessel (10) after moving through a predetermined distance. The housing frame (22) also has a coupling peg (62) for releasably coupling to a manipulator (80), this manipulator (80) being intended to move this housing frame (22) on the guide tracks (52) and to remove it from and to install it on the vessel (10). This process, which must be frequently performed, may be conducted without manual intervention.
Patent CA-2211895-A1 (CA)
Title: Shed-formed profile insulating covering and manufacturing method thereof
Inventor: VALLAURI UBALDO
IPC: H01B17/56
Filed: 1997-07-29
Abstract: Method for manufacturing an insulating body with a predetermined profile for an electrical device. This method comprises the steps of forming a covering body of cross-linkable polymer material on a supporting element, where said body has a first external profile that comprises the envelope of the predetermined profile; to vulcanize the body; and to create the predetermined profile on the external surface of said body by removing portions of said material. The covering body obtained in monolithic vulcanized polymer material comprises a central element and a plurality of frusto-conical sheds formed on it where the internal conical surface of at least one shed forms an angle of less than 80° with the central element and where the external conical surface of at least one shed forms an angle greater than 110° with said central body.
Patent CA-2215963-A1 (CA)
Inventor: TURNER DUNCAN WILLIAM
IPC: C22B3/08
Filed: 1996-03-22
Abstract: The present invention relates to a method of processing a sulphide mineral compo sition which at least partly comprises an iron containing mineral, the method comprising the steps of: (a) milling said composi tion to a particle size P80 of 20 microns or less; (b) leaching said composition with a solution comprising sulphuric acid and ferric i ons at ambient pressure whilst sparging with an oxygen containing gas in an open tank reactor at a temperature of up to about the boili ng point of the solution, whereby at least some of the acid and at least some of the ferric ions are obtained from dissolution of the iron c ontaining mineral, and ferrous ions generated by the leaching reaction are substantially re-oxidised to ferric ions in the leaching solution; (c) precipitating excess iron and separating said iron together with any solid materials from the leaching solution; (d) extracting desired meta l ions from the leaching solution by solvent extraction with an organic solvent, such that the raffinate comprises sulphuric acid and ferric ions; (e) returning the raffinate to the leaching tank and blending with further milled composition; (f) separating the metals from the org anic phase obtained in step (c) by stripping with electrolyte and electrowinning.
Patent CA-2216282-A1 (CA)
Title: A system for information on demand
Inventor: BARRAUD CLAUDE
IPC: H04N7/173
Filed: 1996-03-28
Abstract: The present invention provides a system for serving information data such as video data to one or more users, comprising: one or more storage medium units for storing data of said information data; one or more end devices for receipt of said information data by the user; managing means for managing distribution of said data to said end device, the managing means being capable of receiving demand data from said user and related to data selected by the user in the end device, and which managing means output distribution control data including channel information of the selected information data and routs information from the end device; and at least one ATM switch for connecting the storage medium unit, the end device and the managing means, and for routing the data from the storage medium unit and the distribution control data from the managing means.
Patent CA-2216954-A1 (CA)
Inventor: GUERET JEAN-LOUIS H
IPC: A61M35/00
Filed: 1997-10-14
Abstract: La présente demande concerne un ensemble de conditionnement et d'application (1) comportant un applicateur (35) contenant un produit apte à se solubiliser ou se gélifier en surface au contact d'une composition liquide, et un réservoir (2) contenant la composition liquide (5), caractérisé en ce que l'applicateur est mis en contact avec la composition liquide au travers d'un élément élastiquement déformable (100) apte à contenir une quantité de ladite composition liquide, et pouvant passer sélectivement d'une position comprimée dans laquelle une partie au moins de la surface de l'applicateur est en appui sur une surface de restitution (102) de l'élément déformable de manière à être en contact avec la composition liquide, à une position de repos, le passage de la position comprimée à la position de repos provoquant le chargement de l'élément déformable (100) en composition liquide par pompage au travers d'une surface de chargement (101) de l'élément déformable.
Patent CA-2219986-A1 (CA)
Title: Electronic document verification machine
Inventor: DAIGLE STEVEN J
IPC: G07F7/12
Filed: 1996-05-29
Abstract: The electronic verification machine (242) electronically couples with the circuit and applies an excitation signal such as an AC signal having a predetermined frequency through a read head (230) to the document (100) whereby the document includes a printed conductive material thereon. A sensor array (226A-H) in combination with detection circuit in the electronic verification machine (242) then generates a detection signal in response to the excitation signal which can both represent the location and the characteristics of the electrically printed material on the document. By storing the location of the conductive material on the document in a memory (224), the shape (238) of the conductive material can be determined. The electronic verification machine can also be used to stigmatize the document by applying a signal to the electronic circuits having sufficient strength to alter the electronic circuit.
Patent CA-2220249-A1 (CA)
Title: Microcavity semiconductor laser
Inventor: HO SENG-TIONG
IPC: H01S5/10
Filed: 1996-05-21
Abstract: Laser comprising a first lasing microdisk (10), microcylinder or microannulus defining a microcavity having a circular cross-sectional periphery and a second waveguiding micromember (12) in a different plane and optically coupled by resonant photon tunnelling. The second waveguiding micromember includes a light output coupling (18) for providing light output from the laser without adversely affecting the Q value and low lasing threshold of the microcavity.
Patent CA-2221619-A1 (CA)
Title: Modified organosolv pulping
Inventor: GOYAL GOPAL C
IPC: D21C3/22
Filed: 1996-06-07
Abstract: A method and apparatus for producing pulp (95) from fibrous plant materials (10). The method comprises the step of pulping (100) the fibrous material with a cooking solvent of a lower aliphatic alcohol and an additive mixture comprising at least one additive selective from the group consisting of sulfite salts, bisulfite salts and caustic.
Patent CA-2222786-A1 (CA)
Title: Frostproof hydrant seal
Inventor: DENARDO PATRICK E
IPC: E03B9/14
Filed: 1997-12-19
Abstract: A sillcock which has freeze resistance, backflow contamination resistance and back pressure release from the downstream water, having a resilient, radially compressible and expandable back pressure seal valve which is also axially movable a controlled amount to thereby cover or uncover an inner vent hole between the water passage and a vent passage, to allow pressure release from the water flow passage to the atmosphere.
Patent CA-2224784-A1 (CA)
Title: Motive device employing directed centrifugal force
Inventor: MCCREA MICHAEL R
IPC: F03G3/00
Filed: 1998-03-06
Abstract: The DCF is vehicle propulsion motor and my calculations show that it is more fuel efficient than any other motor.  The DCF creates a net force because it uses a force from only one side of the engine to cause the slow back and forth transfer of 2 balanced masses that are under centrifugal force.  The description of the vector dia. and theory show how the DCF can create a net force in a sealed container while using Newton's 3rd. law.  In the DCF, the brackets, the rods and a piston shaft are all rotated together around the piston shaft's axis by a motor (fig. 1 and 2).  The minor and major brackets attach one end of each rod to the rotating part of the piston shaft.  The other end of each rod is hinged on to one end of then revolving torque brackets.  The piston shaft bearings allow the piston shaft to go up and down while rotating.  Hinges on both ends of the minor brackets allow the rods to rotate while the major bracket moves with the piston shaft.  The rods slowly rotate back and forth against the centrifugal force, in 4 degree arcs.  The rod's arc is between a 43 and 47 degree angle to the torque bracket.  The net force drops between the 2 cycles.  Net force (1st. cycle) (dir.g in fig. 3,4,6) is caused by the piston lifting the major and minor brackets (MMB) and rotating the rods inward.  This net force is equal to the resistance from friction and centrifugal force on rods.  In the 2nd. cycle a net force in dir. g is caused by the centrifugal force making the rods rotate outward.  The rods' outward rotation forces the MMB and piston down to create hydraulic pressure and a net force.  The MMB's force (2nd. cycle) that is pushing down is equal to the resistance caused by friction and the moving piston.
Patent CA-2225690-A1 (CA)
Title: Conically threaded closure system
Inventor: DEWEES THOMAS G
IPC: B65D41/04
Filed: 1997-12-23
Abstract: A conically threaded closure system is described which provides a compressive radial force to axial force ratio in the range of 4.3 - 6.2:1, resulting in an optimum stress distribution throughout the thread structures, optimum thread engagement with minimal rotational effort and primary and secondary sealing means. The system comprises a container having a first conical thread structure and a cap having a second conical thread structure disposed on the inside surface of the cap skirt adapted to cooperate with the first conical thread structure.  The first and second conical thread structures each have a conical angle in the range of approximately 20° to 30°, preferably approximately 24° to 28°.
Patent CA-2227370-A1 (CA)
Inventor: ROSS ALONZO H
IPC: C07K14/47
Filed: 1996-07-19
Abstract: La présente invention se rapporte à des procédés pour tuer sélectivement des cellules ou inhiber la croissance de cellules. L'invention consiste à administrer un inhibiteur de WAF1 à des cellules ayant induit un processus dépendant de WAF1. La quantité d'inhibiteur WAF1 administrée aux cellules est suffisante pour inhiber leur croissance ou même tuer les cellules. Le procédé peut consister à soumettre les cellules à un traitement qui induira un processus dépendant de WAF1.
Patent CA-2227963-A1 (CA)
Inventor: CHAO DAVID M
IPC: C07K14/47
Filed: 1996-08-28
Abstract: Eukaryotic RNA polymerase II holoenzymes that contain RNA polymerase II and one or more regulatory proteins are described. These holoenzymes selectively initiate transcription in vitro when supplemented with general transcription factors. The regulatory proteins act positively and negatively to regulate transcription initiation, at least in part, via functional interactions with RNA polymerase II.
Patent CA-2228407-A1 (CA)
Title: Brick tie anchor
Inventor: RICE JOHN
IPC: E04B1/41
Filed: 1998-01-30
Abstract: The invention is directed to a masonry anchor for tying a masonry veneer wall to a stud back-up wall having an outer covering, the anchor comprising a generally planar anchor plate having an outer coupling end for connection to a veneer tie wire and an inner anchoring end for securement to the back-up wall. In one embodiment, the anchor plate has struck-out tabs extending laterally from the anchor plate, intermediate the coupling end and the anchoring end.      The outer coupling end of the anchor is insertable through a slot opening cut into the outer covering adjacent a stud in the back-up wall until the tabs engage the outer covering of the stud back-up wall to provide for proper spacing of the coupling end from the back-up wall. In a second embodiment of the masonry anchor, at least the outer coupling end is of a corrosion resistant material.
Patent CA-2228823-A1 (CA)
Inventor: CHANG MOH CHING OLIVER
IPC: C08L51/00
Filed: 1998-02-04
Abstract: A thermoplastic molding composition which contains (i) a grafted copolymer rubber having a grafted phase of styrene-acrylonitrile phase and a crosslinked (meth)acrylate-acrylonitrile substrate, and (ii) an ungrafted, uncrosslinked SAN having a number average molecular weight of about 20,000 to 100,000 is disclosed. The composition which is further characterized in that it contains no additional grafted copolymer rubber based on crosslinked (meth)acrylate-acrylonitrile substrate and in that the grafted copolymer rubber is present in particulate form where the particles have a monomodal size distribution and a weight average particle size of 0.05 to 0.5 microns exhibits improved mechanical properties.
Patent CA-2231109-A1 (CA)
Title: Plasma arc torch
Inventor: PERRIN DAVID W
IPC: H05H1/28
Filed: 1998-03-04
Abstract: A plasma torch comprises a tubular nozzle having an end wall and an electrode in the nozzle having a nose end facing the end wall. The nose end and end wall provide a plasma gas chamber, and the end wall has a gas chamber outlet opening extending axially therethrough. The gas chamber has an entrance radially outwardly of the outlet opening and the end wall has a plurality of arcuate ribs thereon circumferentially spaced apart about said outlet opening and providing a plurality of arcuate gas directing channels for radially guiding the flow of plasma gas in a swirling flow pattern from the entrance to the outlet opening. The nozzle and nozzle mounting components provide an improved arrangement for cooling the torch tip and producing a gas shield about the plasma jet.