baber/WOPTO huggingface dataset:
Patent CA-2042549-C (CA)
Title: Method of manufacturing zinc-alkaline batteries
Inventor: YOSHIZAWA HIROSHI
IPC: H01M4/36
Filed: 1991-05-14
Granted: 1994-05-10
Abstract: ABSTRACT          The present invention provides a method of manufacturing a mercury-free zinc-alkaline battery giving no environmental pollution and having an excel-lent shelf stability which comprises a corrosion-resistant zinc alloy as an anode active material, an indium compound having appropriate properties, an aqueous alkaline solution as an electrolyte and optionally a fluorine-containing surfactant having the specified chemical structure.  The indium compound is indium hydroxide or indium sulfide prepared by neutra-lizing an aqueous solution of an indium salt.  The surfactant has a hydrophilic part of a polyethylene oxide and an oleophilic part of a fluoroalkyl group. The zinc alloy contains a proper amount of at least one of the group of indium, lead, bismuth, lithium, calcium and aluminum.  The indium hydroxide or indium sulfide is present in an amount of 0.005 to 0.5 wt% and the surfactant in an amount of 0.001 to 0.1 wt%, based on the weight of the zinc alloy, respectively.  Further-more, the indium hydroxide and indium sulfide in a powder form contain 60 wt% or more of particles having a particle size of 0.5 to 8 µm.  The indium hydroxide has a weight loss of 18 to 30 wt% when thermally decomposed at up to 900°C and a powdery X-ray diffraction pattern having peaks at 4.71?0.10 .ANG., 3.98?0.02 .ANG., 3.57?0.10 .ANG. and 2.66?0.02 .ANG..
Patent CA-2044408-C (CA)
Title: Use of heteropolyacids as catalysts in the preparation of unsaturated carboxylic acids esters by liquid (trans)-esterification, and preparation process thereof
Inventor: PAUMARD ERIC
IPC: C07B61/00
Filed: 1991-06-12
Granted: 1998-10-27
Abstract: Use of at least one heteropolyacid HnAaDcOy.xH2O, where A = phosphorus, boron, silicon, germanium, tin, arsenic, antimony, copper, nickel, cobalt, iron, cerium, thorium, chromium and mixtures thereof; D = molybdenum, tungsten, vanadium and combinations thereof; a = 0.1-10; c = 6-18; n = number of acidic hydrogens in the heteropolyacid and is a number greater than 1; y = number of oxygens in the heteropolyacid and is a number of 10-70; and x = number of moles of water of crystallisation and is a number of 0-40, as catalyst in the preparation of unsaturated carboxylic acid esters by direct esterification of the said acids with alcohols or by transesterification, these reactions being conducted in liquid phase.
Patent CA-2044838-C (CA)
Title: Process and system for melting a charge in a furnace
Inventor: JOUVAUD DOMINIQUE
IPC: F27B14/06
Filed: 1991-06-18
Granted: 2002-01-22
Abstract: Process for melting a furnace charge, with post-combustion of the smokes by injecting an oxygenated gas in the furnace atmosphere as a series of jets flowing according to a tangential component in the space between electrodes and cylindrical furnace partition of the furnace, in a direction of injection so as to produce a rotary gas current about the vertical axis of the furnace and preferably in at least two series as two stepped levels to produce gas currents which rotate in opposite directions. Applications to electrical furnaces for the production of steel or ferro-alloys.
Patent CA-2046646-C (CA)
Inventor: PEFEROEN MARNIX
IPC: A01N63/23
Filed: 1990-02-14
Granted: 2000-12-26
Abstract: Two new Bacillus thuringiensis strains; which are deposited at the DSM under accession nos. 5131 and 5132, produce crystal proteins during sporulation that are toxic to Coleoptera. The crystal proteins contain 74 kDa and 129 kDa protoxins, respectively, which can yield 68 and 66 kDa toxins, respectively, as trypsin-digestion products. A plant, the genome of which is transformed with a DNA sequence that comes from either one of the strains and that codes for its respective toxin, is resistant to Coleoptera. Each strain, itself, or its crystals, crystal proteins, protoxin or toxin can be used as the active ingredient in an insecticidal composition for combatting Coleoptera.
Patent CA-2046799-C (CA)
Title: Apparatus and method for registering an image on a recording medium
Inventor: OLSON THOR A
IPC: H04N1/10
Filed: 1991-07-11
Granted: 1996-07-09
Abstract: Registration of an image with respect to a recording medium in a film recorder or the like is provided by first roughly positioning the recording medium in a support.  A beam is then scanned across an unused portion of the recording medium until it impinges a fixed reference mark such as a sprocket hole edge.  The coordinates of the beam are determined at the reference mark, and a registration signal is computed therefrom.  The beam is then scanned across the recording medium in response to the registration signal to record information in registered relation to the reference mark.  An intensity profile of the beam is calculated as it passes over an edge of the recording medium.  The focus of the beam is then adjusted according to the intensity profile.  Adjustment of both beam focus and lens focus is provided.
Patent CA-2060407-C (CA)
Inventor: SACKS JACK M
IPC: G06T5/00
Filed: 1992-01-30
Granted: 1998-10-27
Abstract: A process for reducing background clutter of a scene, and thus, isolating an object of interest.  The process includes calculating a minimum output from a plurality  of  appropriately  configured  anti-median filters  representing a minimum difference processor (MDP) filter.  In a first preferred embodiment, the MDP filter includes a (5 x 5) matrix of elements wherein each element has an intensity value representation of the  scene.    A  first  anti-median filter  array  is configured as a horizontal array of 5 pixel elements in which the center element of the matrix is the center element of the horizontal array.  A median value of the 5 elements of the horizontal array is determined, and is subtracted from the value of the center element to determine an anti-median value of the horizontal array. The same process is performed for a vertical 5 element anti-median array,  and two diagonal 5 element anti-median arrays, all including the center element of the matrix as the center common element of the arrays.  Once the anti-median value of each array is determined the lowest anti-median value is outputted as the output of the MDP filter.  In a second preferred embodiment, the values of the remaining elements of the matrix which were not included in any of the horizontal, vertical or diagonal arrays described above are subtracted from the center element of the matrix.  Again, the lowest value from the group of anti-median values together with the remaining subtracted values is outputted as the output of the MDP filter.  This process enables the background clutter of the scene to be substantially suppressed or eliminated.
Patent CA-2063218-C (CA)
Title: Stand-off compensated formation measurements apparatus and method
Inventor: RHEIN-KNUDSEN ERIK
IPC: E21B47/08
Filed: 1992-03-17
Granted: 1996-05-21
Abstract: Apparatus and method for measuring density, porosity and other formation characteristics while drilling is dis-closed.  The apparatus, preferably housed in a drill collar and placed within a drill string, includes a source of neu-trons and a source of gamma rays placed within a tubular body which is adapted to provide for the flow of drilling through it.  Two sets of stabilizer blades are provided.  One set, associated with the neutron source, includes secondary radi-ation detectors that are placed radially beyond the nominal outer radius of the body.  Formation porosity measurement accuracy is substantially enhanced since the standoff of the detectors from the formation is substantially decreased.          Another set, associated with the gamma ray source, includes one or more gamma ray detection assemblies in a single blade.          Each of the gamma ray detector assemblies is also placed radially beyond the nominal outer radius of the tubular wall.          Formation density or absorption coefficient accuracy is sub-stantially enhanced since the standoff between the detection assembly and the borehole wall is decreased.  In a particular-ly preferred embodiment, ultrasonic sensors incorporated either or both sets of blades provide a measurement of the borehole diameter and/or standoff of the detectors from the borehole.  The bulk density measurement and neutron porosity measurement data can be corrected with information derived from the standoff or borehole diameter.  All such information is preferably transmitted to surface instrumentation where the corrections are performed, or performed downhole and the corrected data transmitted to the surface.
Patent CA-2070297-C (CA)
Title: Multi-dose insufflator for medicaments in powder form
Inventor: COCOZZA SALVATORE
IPC: A61M13/00
Filed: 1992-06-03
Granted: 1999-01-26
Abstract: A multi-dose insufflator for the nasal administration of medicaments in fine or micronized powder form comprises a reservoir unit (34), a unit (60, 64) for withdrawing and metering the medicament contained in the reservoir unit, and an insufflation unit (42, 26) comprising a manually operated pump (42) for generating an air stream within a channel (26) for conveying an individual dose of medicament into the nasal cavity of the patient.  The withdrawal and metering unit comprises a conveyor device (60) provided with at least one cup (64) for withdrawing a dose of medicament from the reservoir (34) and conveying it into an insufflation position.  The cup (64) has a coaxial base hole (66) through which the air stream generated by the pump passes when the cup is in the insufflation position.  The hole (66) has a size substantially smaller than the mouth of the cup (64) and such as to prevent the powder medicament falling through the hole, by virtue of the "arching" effect.
Patent CA-2071553-C (CA)
Inventor: COTTERILL MICHAEL JOHN
IPC: G06F1/16
Filed: 1990-12-17
Granted: 2000-06-06
Abstract: A keyboard support apparatus has a mounting bracket (11), a keyboard support bracket (15) pivotally connected via parallel bars (20, 25) permitting change in altitude of bracket (15). The mechanism may be locked against change in altitude by means of a formation 58 associated with a bar (20) which is interengageable with a formation (54) associated with bracket (15) by means of a laterally operable lever 40 resiliently biased by a spring plate 52 towards engagement. In a preferred embodiment (figures 13 to 15) support bracket (15) may be tilted about a pivot (22) and the mechanism permits one handed selective operation of altitude adjustment or tilt adjustment.
Patent CA-2073751-C (CA)
Title: Led lamp including refractive lens element
Inventor: ALSTON KEVIN GRANT
IPC: H01L33/58
Filed: 1992-07-13
Granted: 1995-07-11
Abstract: A lamp includes one or more LED's which illuminate respective  portions  of  a  refractive  lens  element  whose incident surface preferably includes portions of hyperboloids which translate the LEDs' emitted rays into substantially parallel beams within the lens element.  The lens element's exit surface is preferably an array of facets configured to provide  a desired beam spread pattern,  allowing precise tailoring of the resultant output beam pattern.  The plurality of facets also allows a larger area on the lamp to appear to viewers to be uniformly illuminated,  thus providing full target size definition at a decreased cost and with reduced power consumption.
Patent CA-2078324-C (CA)
Inventor: SOGO HIROSHI
IPC: H01M50/491
Filed: 1992-07-02
Granted: 1997-09-23
Abstract: n séparateur de pile à électrolyte organique qui comporte une pellicule à micropores constitué d'une matrice de polyéthylène et de polymère de propylène d'un poids moléculaire moyen de 10 000 à 1 000 000, la proportion de polymère de propylène étant de 5 à 45 %, en poids, par rapport au poids total de polyéthylène et de polymère de propylène, le polyéthylène renfermant une fraction d'un poids moléculaire d'au moins 1 000 000 dans une proportion d'au moins 10 %, en poids, et une fraction d'un poids moléculaire d'au plus 100 000 dans une proportion d'au moins 5 % en poids, et où la pellicule à micropores, d'une épaisseur de 10 à 500 mu.m, a une porosité de 40 à 85 %, le diamètre maximal des pores étant compris entre 0,05 et 5 mu.m. On peut produire ce séparateur en mélangeant un polyéthylène présentant les composantes de poids moléculaire spécifiques décrites ci-dessus, un polymère de propylène ayant le poids moléculaire moyen indiqué ci-dessus, un liquide organique et des particules de matière inorganique; pour produire la pellicule, on moule le mélange par extrusion et on en extrait le liquide organique et les particules de matière inorganique. Le séparateur est non seulement très stable, mais (60) il possède aussi d'excellentes propriétés de résistance chimique, de résistance mécanique et de perméabilité ionique, si bien qu'il peut être très avantageux dans les piles au lithium et d'autres types de piles et d'accélérateurs à électrolyte organique.
Patent CA-2084993-C (CA)
Inventor: RYLE THOMAS R
IPC: C08L25/00
Filed: 1991-06-19
Granted: 1996-07-30
Abstract: Novel, unstretched synthetic papers being virtually free of mechanically produced microvoids and having a porous surface for writing and printing thereon are disclosed. The unstretched synthetic papers of the instant invention are formed typically by extruding from pellets a film or sheet material formed with a continuous olefin resin matrix containing an effective amount of a particulate filler having microvoids inherent thereto, such as a diatamaceous earth. The microvoid particulate filler is dispersed somewhat uniformely yet randomly throughout the continuous olefin resin matrix of the unstretched synthetic papers to provide non-mechanically produced microvoids in with the surfaces porous for imparting writeability and printability thereto. The novel, unstretched synthetic papers of the present invention have good receptivity and retentivity for common writing materials, such as ink, pencil lead, and paint, even though they are not mechanically stretched to form mechanically produced microvoids .
Patent CA-2101303-C (CA)
Inventor: DENTON GLEN MICHAEL
IPC: C22B34/12
Filed: 1993-07-26
Granted: 2003-02-18
Abstract: A process is provided for the production of a titanium rich slag and pig iron from ilmenite. The ilmenite is fed continuously, together with carbonaceous reductant, and in the absence of fluxes, to the molten bath of a circular d.c. arc furnace, preferably a plasma arc furnace, wherein the molten bath forms the anode and one or more electrodes in the furnace roof form the cathode.    The feed materials are preferably preheated using heat contained in the off-gases from the process.      Titanium rich slag which can be used as the feed to a chlorine based titanium dioxide production process is recovered continuously or intermittently and pig iron is tapped off as a by-product.
Patent CA-2103509-C (CA)
Inventor: CAUTEREELS VICTOR J J
IPC: A61J11/04
Filed: 1993-08-06
Granted: 1996-12-31
Abstract: An assembly for mounting a nipple to a baby bottle including an adapter supporting the nipple against free movement through the bottle mouth, and a mounting collar with threaded fasteners engaging complementary fasteners on the bottle and clamping the nipple and adapter to the bottle. The position of the threads allows free rotating of the collar relative to the bottle threads in the absence of the adapter.
Patent CA-2106889-C (CA)
Inventor: RAMESH RAM K
IPC: B65D65/40
Filed: 1993-09-24
Granted: 2003-08-19
Abstract: A multilayer heat-shrinkable film is provided which includes at least one heat sealing layer which is a blend of a propylene copolymer and a homogeneous ethylene alpha-olefin copolymer having a density below about 0.90 g/cc. Prefera-bly, the outermost layer is compatible with the. heat sealing layer for ready formation of a lap seal for end use applica-tions such as backseamed casings. An internal polyamide-con-taining layer provides excellent elastic recovery:
Patent CA-2109047-C (CA)
Inventor: GORIA PIERRE A
IPC: A61G17/00
Filed: 1993-10-22
Granted: 2005-08-16
Abstract: A burial container having a seamless single piece base with a bottom, sides and ends, each of which has an inner wall and an outer wall and a seamless single piece lid having an inner and outer wall, the lid sealably securable to the base. The lid, bottom, side and end inner and outer walls form hollow chambers capable of being filled with cellular concrete or other structural flowable materials. The inner and outer walls of the lid and base may be parallel and unconnected or connected at a plurality of locations to hold the walls in a substantially fixed relationship with each other and thereby strengthen the lid, bottom, sides and ends to withstand the forces exerted by the surrounding earth and water.
Patent CA-2109150-C (CA)
Title: Heat sealable shrink laminate
Inventor: HOSTETTER BARRY J
IPC: A23L27/30
Filed: 1993-10-25
Granted: 2004-01-27
Abstract: A heat sealable laminate having high unidirectional shrinkage and the ability to produce an effective seal when exposed to an elevated temperature. The heat sealable laminates of the present invention are used to label containers without application of an additional adhesive.
Patent CA-2111329-C (CA)
Inventor: SEKHAR JAINAGESH A
IPC: C22C29/00
Filed: 1992-06-10
Granted: 1999-07-06
Abstract: A composite electrode for electrochemical processing having high temperature tem perature properties, and a process for making the electrode by combustion synthesis. A composition from which the elect rode is made by combustion synthesis comprises from about 40 % to about 90 % by weight of a particulate or fibrous combustible mixture which, when ignited, is capable of forming an interconnected network of a ceramic or metal-ceramic composite, and f rom about 10 % to about 60 % by weight of a particulate or fibrous filler material capable of providing the electrode with i mproved oxidation resistance and maintenance of adequate electrical conductivity at temperatures above 1000 .degree.C. The fille r material is molybdenum silicide, silicon carbide, titanium carbide, boron carbide, boron nitride, zirconium boride, cerium oxide, cerium oxyfluoride, or mixtures thereof.
Patent CA-2113257-C (CA)
Title: Method and apparatus for molding lenses
Inventor: APPLETON WILLIAM J
IPC: B29C33/38
Filed: 1992-08-27
Granted: 1996-01-16
Abstract: A mold assembly includes first and second mold sections having respective first and second mold cavity defining surfaces, the first mold cavity defining surface terminating in an encircling peripheral rim (52) and the second mold cavity defining surface terminating in a deformable peripheral annulus (47) disposed at a diameter corresponding to the rim, and cooperating tapers (44, 24) depending from each of the first and second molds for relatively centering the molds.
Patent CA-2118468-C (CA)
Inventor: SONOBE TOSHIMITSU
IPC: H01R13/629
Filed: 1994-10-19
Granted: 2004-12-14
Abstract: A connector comprises first and second housings adapted to be coupled to each other. A pivotal plate is pivotally disposed on one of the housings. A pair of leaf springs is interposed between one of the housings and the pivotal plate. A latch is provided for locking the two housings upon coupling. When the two housings are to be coupled, the pivotal plate is pivoted by the action of the leaf springs. This occurs after the two housings reach an intermediate state of coupling.
Patent CA-2123349-C (CA)
Inventor: SMITH WILLIS H JR
IPC: G02F1/1333
Filed: 1994-05-11
Granted: 1999-12-28
Abstract: An electrically-conducting substrate coated with silicon dioxide is contacted with alcohol vapors from a source (12) by heating the substrate (16) in a microwave oven. The substrate and source of alcohol are contained in a vessel (10), on which a vacuum is optionally pulled during the heating. The process results in approximately 100 fold reduction in processing time from the prior art time of several hours to several minutes. The process may be used in either inducing perpendicular alignment or parallel alignment of liquid crystals in the cell.
Patent CA-2125512-C (CA)
Inventor: GILMORE PHILLIP J
IPC: B65G67/08
Filed: 1994-06-09
Granted: 2005-07-19
Abstract: An extendable conveyor unit eliminates the necessity of a base unit by supporting the extendable units directly from the warehouse floor with a minimum amount of support structure. The extendable conveyor includes one or more extendable units, a stationary support for supporting the extendable units, and a conveying surface defined on an extended portion of the extendable units. The stationary support supports the extendable units between a fully extended position, wherein the extendable units extend from the support in the direction of the vehicle to be loaded and a fully retracted position in which the extendable units extend from the support in a direction opposite from the direction of the vehicle to be loaded. The conveying surface may be a gravity roller conveyor or it may be an endless belt. When the conveying surface is an endless belt, an elevating unit may be provided with the stationary support in order to elevate the conveying member above the extendable unit at the stationary support to match up with a discharge or receiving conveyor. A cable routing system to the extendable units includes an electrical cable running between the stationary support and an extendable unit over a sheave mounted to another extendable unit with the extendable units extended at a rate that maintains tension on the cable for all extendable positions of the extendable units.
Patent CA-2130474-C (CA)
Title: Controlling release of sucralose in chewing gum using cellulose derivatives and gum
Inventor: SONG JOO H
IPC: A23G4/10
Filed: 1993-03-02
Granted: 1996-12-10
Abstract: The present invention is a method for producing a chewing gum with a delayed release sucralose sweetener, as well as the chewing gum so produced. The delayed release sucralose sweetener is obtained by physically modifying sucralose's properties by coating and drying. Sucralose sweetener is dissolved in a solvent and coated onto a cellulose derivative such as hydroxypropyl cellulose by agglomerating the cellulose derivative with the sucralose solution. The agglomerated material preferably includes an absorption material such as silica. The agglomerated sweetener is then dried and preferably particle sized to produce a release-modified sucralose high-intensity sweetener. When incorporated into the chewing gum, these particles are adapted to enhance the shelf stability of the sweetener and/or produce a delayed release when the gum is chewed.
Patent CA-2131702-C (CA)
Inventor: GOLDBERG MARK
IPC: A61B17/22
Filed: 1993-04-09
Granted: 1999-03-23
Abstract: An improved valve cutter (10) for in-situ incision of valve leaflets which safel y, efficiently, and consistently renders venous valves incompetent while minimizing frictional forces on the endothelium of the vessel and preventing inadvertent contact between cutting surfaces and the intima of the vein wall. The valve cutter (10) includes a plurality of proximally directed prongs (36) presenting sharp edges, where the prongs (36) are separated by slots (38) simila rly presenting sharp edges to pierce the valve leaflets so that the cutting head (12) is provided with a continuous cutting surface in m ultiple planes running along the entire forward edge of the cutting head. Means are provided for viewing the valves as they are penetrated by the sharp cutting edges.