baber/WOPTO huggingface dataset:
Patent CA-2020547-C (CA)
Inventor: TSUCHIYA YOSHINOBU
IPC: H01G11/84
Filed: 1990-07-05
Granted: 1994-11-29
Abstract: ABSTRACT OF THE DISCLOSURE A pressure ranging from 50 Kgf/cm2 to 800 Kgf/cm2 is applied to a powder of fine particles of activated carbon, and while the pressure is being applied to the fine particles, pulse voltages are applied between the fine par-ticles for producing electric discharges between the fine particles, and the fine particles are kept at a temperature ranging from 700°C to 1000°C, thereby sintering the fine particles of activated carbon into an electrode of a porous sintered body.  Two such electrodes are impregnated with an electrolyte to produce polarized electrodes, and a separator is sandwiched between the polarized electrodes, thus com-pleting an electric double layer capacitor.
Patent CA-2020856-C (CA)
Title: Composite oxide thin film
Inventor: YOSHIMURA MASAHIRO
IPC: C25D11/02
Filed: 1990-07-10
Granted: 2001-06-05
Abstract: A composite oxide thin film is manufactured by a method comprising the steps of (i) providing a work electrode and an opposite electrode immersed in an electrolytic solution, the work electrode comprising a first metal and the electrolytic solution comprising at least one reactive component which is reactive with the work electrode and contains ions of at least one metal other than the first metal in the work electrode; and (ii) energizing the work electrode at a solution temperature of at least 100°C. and under a pressure of at least saturated vapor pressure of the solution, thereby reacting the reactive component with the work electrode and forming a composite oxide thin film which contains oxides of the first metal and the metal other than the first metal. The method of the invention enables one to obtain a uniform composite oxide thin film having an excellent crystallinity directly at a relatively low temperature. A large-area thin film can thus easily be manufatured.
Patent CA-2023719-C (CA)
Title: Lancet ejector mechanism
Inventor: NIETO ROBERT L
IPC: A61B5/15
Filed: 1990-08-23
Granted: 2002-02-26
Abstract: A lancet ejector device for use in combination with a lancet injecting mechanism. The lancet ejector of the present invention enables the user to eject a lancet from the lancet injecting device without touching a used lancet.
Patent CA-2024906-C (CA)
Title: Friction material for brake
Inventor: YAMASHITA YUKINORI
IPC: F16D69/02
Filed: 1990-09-07
Granted: 1995-03-28
Abstract: A friction material for brake in accordance with the present invention is formed by using metallic fiber and/or aramid fiber as a main component, adding a filler to the main component and binding the main component and the filler by using a binder.  The metallic fiber includes at least either copper fiber or copper alloy fiber.  The filler includes one or more inorganic substances having a plane netlike crystal structure.  The inorganic substances having the plane netlike crystal structure include mica, talc, vermiculite, aluminum hydroxide, magnesium hydroxide, agalmatolite, kaolin, chlorite,    sericite, iron hydroxide, and montmorillonite.
Patent CA-2027522-C (CA)
Inventor: HALPERN DONALD F
IPC: C07C51/367
Filed: 1990-10-12
Granted: 1997-09-30
Abstract: The present invention is directed to a method for replacing a carboxylic acid group with a fluorine group in a halogenated aliphatic carboxylic acid compound having the formula, R-COOH, to prepare a fluorinated product having the formula, R-F, wherein R is a halogenated aliphatic group including straight- and branched-chain aliphatic groups selected from the group consisting of halogenated aliphatic and halogenated alkoxy-substituted aliphatic groups, wherein the method comprises the steps of (a) reacting the halogenated aliphatic carboxylic acid compound with bromine trifluoride, and (b) recovering the fluorinated product.
Patent CA-2029079-C (CA)
Title: Process for preparing polyolefin fluff having controlled morphology using metallocene catalysts
Inventor: HASPESLAGH LUC
IPC: C08F210/00
Filed: 1990-10-31
Granted: 2004-01-06
Abstract: Olefin polymers and copolymers having controlled morphology are prepared by bulk or slurry polymerization using metallocene catalysts in the presence of an alumoxane cocatalyst. Prepolymerization at a temperature of -10°C to +35°C during 1.5 to 3.5 minutes is immediately followed by polymerization at 55-70°C.      The fluff has a narrow grain size distribution, a smooth surface and a high bulk density.
Patent CA-2040315-C (CA)
Inventor: KUHNT ERHARD
IPC: E05F11/34
Filed: 1991-04-12
Granted: 2000-10-17
Abstract: A casement window wherein the sash is pivotable in the frame about a vertical axis has a self-locking crank drive which pivots the sash between open and closed positions by way of a pivotable lever, a link which is coupled to the lever, and an actuator which is movably installed in the sash, which is coupled to the link and which forms part of a locking-unlocking mechanism for the sash. The first stage of rotation of the crank drive in order to pivot the sash from closed position involves a displacement of the actuator which ensures that the sash is unlocked, and further rotation of the crank drive results in pivoting of the sash to the open position. If the direction of rotation of the crank drive is reversed, the sash is moved to the closed position before the actuator is caused to lock the sash to the frame. A blocking device for the actuator is operated by the frame to .release the actuator for movement to its operative position shortly before the sash reaches the closed position. To this end, a mobile blocking element of the blocking device is installed in the sash and is displaced by the frame before the sash reassumes its closed position whereby the blocking element releases the actuator which is held in the inoperative position while the sash is held in an open or partly open position.
Patent CA-2045409-C (CA)
Inventor: DORDEVIC ZORAN
IPC: D03D15/00
Filed: 1990-01-23
Granted: 1995-07-11
Abstract: Textile fabric shielding eletromagnetic radiation, and clothing made thereof. The textile fabric is made of threads spun of textile fibers, containing cotton, and of steel fibers having a diameter of 6 to 10 µm. The number of mixed yarn threads in wrap direction and in weft direction each is 18 to 20 threads per cm, and the yarn fineness of the textile fabric is especially 38 to 40 tex. The textile fabric guarantees a shielding of 20 to 40 dB against electromagnetic radiation at a frequency of 10 GHz. The fabric has the quality of usual clothing, and the clothing thereof is designed with respect to proportions, seams, fasteners, and other spe-cial features in a manner such that especially people wearing pacemakers, or hospital and radar personnel, are protected against electromagnetic radiation.
Patent CA-2046310-C (CA)
Title: Preparation of pharmaceutical and other matrix systems by solid-state dissolution
Inventor: GOLE DILIP J
IPC: A23L27/00
Filed: 1990-12-11
Granted: 2001-10-23
Abstract: A method is disclosed for preparing pharmaceutical and other matrix systems that comprises solidifying a matrix composi-tion dissolved or dispersed in a first solvent and subsequently contacting the solidified matrix with a second solvent that is sub-stantially miscible with the first solvent at a temperature lower than the solidification point of the first solvent, the matrix compo-nents being substantially insoluble in the second solvent, whereby the first solvent is substantially removed resulting in a usable matrix:
Patent CA-2047689-C (CA)
Title: Cutting guide
Inventor: WARD JONATHAN
IPC: D06H7/02
Filed: 1990-03-05
Granted: 2000-05-16
Abstract: A guide for use in cutting carpet and a method of joining two portions of cut carpet in edge-to-edge relationship has a base formed as a lower portion (1) and an upper portion (2) interengaged through a longitudinal slideway (6, 10) and presenting an upper ramp surface (3, 11). The upper portion has a longitudinal channel (12) along which a knife blade can pass to cut a carpet portion laid on the ramp (3, 11). The lower portion has a vertical wall (4) vertically below the channel (13) and agasinst which the cut edge of first carpet portion is located to abut during cutting of the second carpet portion on the ramp so that when the guide is removed the two cut edges will fall into edge-to-edge abutment for joining together.
Patent CA-2050974-C (CA)
Title: Sulfur dioxide removal process with gypsum and magnesium hydroxide production
Inventor: COLLEGE JOHN W
IPC: B01D53/50
Filed: 1991-09-09
Granted: 1999-02-16
Abstract: Sulfur dioxide is removed from flue gases using an aqueous solution of magnesium components in a wet scrubber, with oxidation of a portion of the aqueous discharge from the scrubber.   Calcium sulfate is added to the portion of aqueous  discharge  at  the  oxidizer  to  form  an  oxidized aqueous  effluent  containing  calcium  sulfate  solids  and dissolved magnesium sulfate.  The oxidized aqueous effluent is regenerated by addition of lime, in a regeneration tank, which precipitates calcium sulfate as gypsum, with gypsum returned  to  the  oxidizer  as  the  calcium  sulfate  added thereto.    Preferably,  the  aqueous  discharge  from  the scrubber  is  divided,  with  a  major  portion  passed  to  a separator to remove gypsum, therefrom, while a minor portion is  passed  to  the  regeneration  tank.    Magnesium  sulfate solution, after separation of gypsum from the major portion may also be fed to the regeneration tank.
Patent CA-2054901-C (CA)
Inventor: HALM RUDOLF
IPC: F42B3/00
Filed: 1991-11-04
Granted: 2001-07-03
Abstract: Dispositif de protection contre les éclats produits par le sectionnement d' un boulon du type utilisé pour la fixation d'antennes et d'autres instruments a ux satellites et aux engins spatiaux, où le boulon traverse un mécanisme de sectionnement et où une partie du boulon fait saillie hors du mécanisme. Le dispositif comprend un enceinte de confinement formée d'une paroi captant la partie en saillie du boulon et d'une section élastiquement déformable. La section élastiquement déformable est composée de pièces flexibles, chacune de ces pièces flexibles pouvant altern er entre une première position où la section élastiquement déformable forme un passag e pour la partie en saillie du boulon et où les pièces flexibles viennent s'appuyer  très hermétiquement contre la partie en saillie du boulon, et une seconde positio n où le passage est refermé chacune des pièces flexibles passant automatiquement de la première à la seconde position quant le boulon est retiré, de manière à piég er les éclats de sectionnement dans l'enceinte de confinement, la paroi de l'encein te est de plus munie de deux gorges. Les gorges comprennent chacune une rondelle flexible, et la section élastiquement déformable comprend une pile de membranes retenu es entre les rondelles et fournies avec les pièces flexibles du dispositif.</SD OAB>
Patent CA-2057689-C (CA)
Inventor: ROHDE META
IPC: H05K3/34
Filed: 1991-12-16
Granted: 1997-04-29
Abstract: A hermetically sealed surface mount electronic component  package can  be  manufactured  by  converting standard, readily available flat-packs.  The package has a  base,  with  an  opening  through  which  a  primary transmission  lead  extends,   a  glass-to-metal   seal surrounding  the  primary  transmission  lead  in  the opening, and a secondary transmission lead extends from the primary transmission lead so that it is spaced from the base and its end is at least flush with the bottom of the base.  An insulator can be provided between the primary transmission lead and the secondary transmission lead.   A method of converting a standard flat-pack by providing  a  composite  piece  having  a  dielectric insulator, a secondary transmission lead for connection to the primary transmission lead of the flat-pack, and a connecting  member  for  connecting  the  insulator  and secondary transmission lead to the base of the flat-pack is also described.
Patent CA-2059471-C (CA)
Title: Method of densifying a porous substrate by means of a matrix containing carbon
Inventor: BERNARD BRUNO C
IPC: C04B38/00
Filed: 1992-01-16
Granted: 1999-07-13
Abstract: A method of densifying a porous substrate by means of a matrix containing carbon, for obtaining an article made of a composite material, the method comprising the following steps: providing on one side of a substrate to be densified a suspension containing submicron carbon powder; establishing a pressure difference to force the suspension through the substrate; filtering the liquid that has passed through the substrate to retain the carbon powder inside the substrate; and when densification of the substrate by means of the carbon powder has terminated, drying the densified substrate and transforming a carbon precursor introduced into the substrate into carbon by carbonization, thereby binding the powder constituting the matrix.
Patent CA-2060199-C (CA)
Title: Non-toxic shot and shot shell containing same
Inventor: BROWN JOHN E
IPC: C22C1/04
Filed: 1990-06-22
Granted: 1994-04-19
Abstract: ABSTRACT OF THE DISCLOSURE    Non-toxic wildlife shot pellets for shotgun shells are formed from bismuth or a bismuth alloy.
Patent CA-2060678-C (CA)
Inventor: WARTIAN GEORGE
IPC: E05F3/02
Filed: 1992-02-05
Granted: 1996-04-09
Abstract: A door closing piston-cylinder assembly which is designed to permit the door initially to move to closed position relatively rapidly but with controlled  restraint until it approaches the fully closed position where upon the door continues to move but considerably more slowly so that it will close smoothly and softly.  The cylinder has a large diameter bore adjacent one end and a bore of smaller diameter adjacent the other end.  A piston assembly has a first piston dimensioned to reciprocate in the large bore and a second piston of smaller diameter dimensioned to reciprocate in the smaller bore.  The pistons have check valves which close when the pistons move in one direction and open when they move in the opposite direction.          The smaller piston has a metering valve which is open at all times.  A bleeder valve is provided in the end of the cylinder having the small bore.  A coil spring is provided to move the pistons in a direction to close the door.  The door closing piston-cylinder assembly is operable to control the opening and closing movements of a door relative to a door frame when the door is connected to the cylinder and the door frame is connected to the piston, or visa versa.
Patent CA-2073171-C (CA)
Title: Chain extended low molecular weight polyoxiranes for electrostatic applications
Inventor: SULLIVAN FRANCIS RYAN
IPC: C08G63/66
Filed: 1991-01-02
Granted: 2002-10-29
Abstract: The present invention relates to electrostatic dissipative polymeric compositions comprising an effective amount of a chain extended polymer and a base polymer or base polymer blend. The chain extended polymer of the subject invention has electros-tatic dissipative properties and is formed from low molecular weight polyethers which are reacted with a chain extender to furnish a useful additive.
Patent CA-2074434-C (CA)
Title: Strip tension control apparatus
Inventor: ICHII YASUO
IPC: B65H23/16
Filed: 1992-07-22
Granted: 1997-04-15
Abstract: The tension of a strip can be controlled with high responsiveness  and  high  accuracy  despite  its  drastic external variation by threading the strip (1) between a transportation roll (2) and a movable transportation roll (10) and moving the movable transportation roll (10).   The movable transportation roll (10) is mounted on one end of an arm (11), which is mounted for a swing motion around a supporting shaft (12), a torque around the supporting shaft (12)  is generated in the arm  (11)  by means of an arm driving motor (14) connected directly to the supporting shaft (12), thereby applying a tension to the strip (1).          The angle of swing motion of the arm (11) is detected by means of an arm angle sensor (16), and the tension of the strip (1) is detected by means of a tension sensor (15).          The torque to be generated in the arm (11) is corrected in accordance with the detected angle and tension, whereby the strip tension is controlled for a target tension.
Patent CA-2081137-C (CA)
Title: Rapid loading short-stroke extrusion press, and process
Inventor: CRISTIANI GIANCARLO
IPC: B21C23/21
Filed: 1992-10-22
Granted: 2003-12-09
Abstract: A billet fed extrusion press comprises a rotating arm (46) on a movable cross member (28). The arm carries a plunger (48) and a billet loader (50) spaced from each other, and can be rotated between a condition in which it brings the plunger into a working position in alignment on extrusion axis (a) of the press and the loader (50) into a billet receiving position on one side of the press, and a condition in which it brings the loader into a billet loading position along the axis (a) of the press and the plunger into a rest position on the said one side of the press.
Patent CA-2086673-C (CA)
Title: Power amplifier ramp up method and apparatus
Inventor: HIETALA ALEXANDER W
IPC: H03G3/20
Filed: 1992-05-08
Granted: 1996-09-17
Abstract: A power amplifier controller which powers up a power amplifier (203) without a substantial burst of frequency noise. The controller has a RF output power detector (211) which generates a signal (229) correllated to the power level of the power amplifier (203). This signal (229) is compared (215) to a reference signal (213) to determine if the power amplifier (203) is active. The signal (227) generated by this comparator (215) is used to determine the voltage level of the Automatic Output Control (AOC) signal (231).
Patent CA-2094669-C (CA)
Inventor: BLOCHA JOHN
IPC: B23Q1/00
Filed: 1993-04-22
Granted: 1997-02-18
Abstract: An initial curvature is cut into a lens blank in a lens making machine, such as a lathe, and the curvature is subsequently finished by a finishing tool. The finishing tool has curve characteristics which correspond to those of a prescription within a prescribed tolerance.  The curvature of the finishing tool is measured on a digital gauge, and those measurements are fed to a digital controller which actuates the lathe. As a result, an initial curvature is cut into the lens blank having characteristics which correspond to those of the finishing tool.  The finishing operation can thus be performed more quickly, since less material needs to be removed from the initial curvature during the finishing operation.
Patent CA-2095435-C (CA)
Inventor: CITTA RICHARD W
IPC: H04N11/00
Filed: 1991-11-07
Granted: 1999-08-03
Abstract: A television signal transmission signal comprises a suppressed carrier, VSB signal having respective Nyquist slopes at the lower and upper edges of a 6MHz television channel, the center frequency of the Nyquist slope at the lower edge of the channel being  substantially coincident with the frequency of the suppressed carrier, and the pilot signal in quadrature relation with the suppressed carrier. The suppressed carrier is modulated by an N-level digitally encoded signal having a sample rate fs substantially equal to three times the NTSC color subcarrier frequency, with the frequency of the color subcarrier being less than the co channel NTSC picture carrier by an amount equal to about fs/12.  The received signal is demodulated by a synchronous detector in response to the received pilot signal and interfering NTSC beat components are attenuated by a linear filter having notches at fs/12, 5fs/12 and fs/2.  The output of the filter comprises an M-level signal, where M = greater than N, which is converted to a N-level output signal representing the televised image.
Patent CA-2096534-C (CA)
Title: Isocyanate modified cellulose products and method for their manufacture
Inventor: LINCOLN JAMES F L
IPC: D21H25/06
Filed: 1991-10-17
Granted: 1999-03-23
Abstract: A method is disclosed for producing a polyurea-cellulose composite material from substantially delignified cellulosic material and an isocyanate resin. The isocyanate resin comprises a polyisocyanat e, preferably PMDI, and a miscible organic solvent, preferably one such as propylene carbonate having a high boiling point and low f lammability and toxicity. The composite surprisingly exhibits values of physical parameters that are at least as good as, and sometim es far superior to, corresponding parameters of similar composites made using neat (undiluted) polyisocyanate. Single- and mu ltiple-ply composites can be made, employing only a single curing step.
Patent CA-2097940-C (CA)
Inventor: CLARE MANAMOHAN
IPC: F16K43/00
Filed: 1993-06-08
Granted: 2002-11-12
Abstract: The invention provides a quick-acting shut-off valve for hydraulic installations, particularly for pressure balanced mixing valves such as might be used in a shower/tub installation. The shut-off valve includes a casing mounted to the installation housing adjacent an inlet port thereof, there being a reciprocable actuator sealingly retained within the casing for direct movement between first and second positions. The actuator carries a valve member at a distal end thereof for sealingly blocking the inlet port when the actuator is in its second position. When the actuator is in its first position the inlet port is open to normal water flow therethrough. The actuator utilizes a simple push-on, push-off ratchet mechanism to effect movement between the two operating positions thereof. The shut-off valve is readily accessible for quick operation and, when the installation needs repair, it is not necessary to locate a master control valve to terminate water flow to the installation, thereby maintaining water flow to other installations in the same hydraulic circuit.
Patent CA-2098219-C (CA)
Inventor: VOGELSANG HORST
IPC: H02G1/08
Filed: 1993-06-11
Granted: 1999-01-26
Abstract: An electrical conduit is substantially circular and is internally formed with zig-zag ridges.  The ridges are angularly equispaced and have portions of constant pitch a joined at corners, and the ridges contact a cable in the conduit at regions K each defined by the formula:                             Ar = 0.16b2zL K, where A  =   the surface of area R, equal to between 4,5mm2 and 32mm2, r  =   the radius of the conduit or D/2, b  =   the width of the contact region K, z  =   the number of ridges 1, and L K =   axial length of each ridge straight portion. The straight-portion pitch g in radians is equal to: g = r'al L K and is between 0.0o1rad and 1.2rad, radius r being equal to between 12mm and 100mm and L K is between 500mm and 10,000mm, depending on the diameter of the cable which can range from 5mm to 45mm.
Patent CA-2101768-C (CA)
Inventor: HEHL KARL
IPC: B29C45/17
Filed: 1993-08-02
Granted: 2001-07-31
Abstract: The synthetic material can be injected into the mold carrier, which can be selectively mounted with injecting molds, by means of a injection molding unit shiftable in horizontal direction transversely with respect to the injection axis. When shifting the injection molding unit the ending sections of the drive unit are received in seats of a seat support movable at the mold carrier. The shifting device engages at the mold carrier and in the region of the seat support. Resides, the injection molding unit is freely displaceable into shifting direction. That is how a shifting of the injection molding unit in a cost-saving and simple way is achieved, meeting all demands arising during the injection process.
Patent CA-2106062-C (CA)
Title: Polyimide resins useful at high temperatures
Inventor: SERAFINI TITO T
IPC: C08G73/10
Filed: 1992-04-21
Granted: 1997-06-10
Abstract: Polyimide resins useful at high temperatures are prepared from: (a) a dialkyl, trialkyl or tetraalkylester of biphenyltetracar-boxylic acid; (b) phenylenediamine, preferably the phenylenediamine comprses a mixture of meta- and para-phenylenediamine; and (c) a divalent end cap compound that is capab;e of undergoing addition polymerization.