baber/WOPTO huggingface dataset:
Patent CA-2102632-C (CA)
Inventor: BOYD LARRY C
IPC: C05G3/60
Filed: 1992-05-26
Granted: 1999-02-23
Abstract: Substance de désherbage et de désalinisation et procédé d'utilisation de cette substance, consistant à irriguer le sol d'eau, avant d'y faire des plantations, de manière à déclencher la germination des graines de mauvaises herbes puis à appliquer ensuite un agent de désalinisation qui intensifie la germination desdites graines. L'application du pesticide faisant l'objet de l'ivention permet ensuite de supprimer une plus grande quantité de mauvaises herbes. Sont également prévus un engrais amélioré et sa méthode d'élaboration et d'utilisation afin d'améliorer l'assimilation des éléments nutritifs par les plantes. L'engrais amélioré renferme des éléments nutritifs azotés ainsi qu'un ingrédient de désalinisation. Dans un mode de réalisation donné, un agent tensioactif est également employé pour accélérer et renforcer la capacité d'assimilation des éléments nutritifs par les plantes.
Patent CA-2107186-C (CA)
Inventor: THOMASSEN JAN M
IPC: A01K61/13
Filed: 1993-09-28
Granted: 1996-04-02
Abstract: The invention relates to a method for preventing fish-borne parasites from spreading to a watercourse  (1)  or a limited area (4) of a watercourse (1) without such parasites. According to the invention, all the fish to pass into the area (4) are forced to go through a bath of water containing an active substance which kills or removes from the fish the parasite or parasites which should be prevented from spread-ing,  without killing or seriously injuring the fish.  The invention also relates to a plant for carrying out the method.
Patent CA-2110347-C (CA)
Inventor: OGURO MASAKI
IPC: H04N7/24
Filed: 1993-11-30
Granted: 2003-02-18
Abstract: An application ID is recorded in a timing sector at an entrance end of a track on a recording medium for stipulating a data structure for the respective track including a determined number of areas into which the remainder of the track is divided, the positioning of those areas, and the arrangements of Sync. blocks and error correcting codes (ECC) in the areas. Further, each of the areas into which the track is divided in addition to the timing sector is provided with a respective application ID for determining the data structure in the respective area.
Patent CA-2112076-C (CA)
Title: Process for purifying a technical iron chloride solution by selective precipitation
Inventor: HARTMANN ACHIM
IPC: C01G49/10
Filed: 1993-12-21
Granted: 1999-05-11
Abstract: A process for purifying an acidic technical-grade iron chloride solution formed from cyclone dust from the production of TiO2 in accordance with the chloride process by adjusting the pH with a first neutralizing agent and thereafter introducing the pH adjusted solution in a controlled manner into a solution containing a second neutralizing agent.  In this process undesired ions which are to be separated, such as chromium, vanadium, zirconium and/or niobium, precipitate in the form of efficiently filterable hydroxides which can be separated industrially under economical conditions by filtration.  The filter cake is non-hazardous and can safely be disposed of by dumping. Calcium carbonate is the preferred neutralizing agent, and the pH adjustment may also advantageously be effected by using scrap iron or by using iron sinters with reduction of any Fe(III) ions before the second neutralization step.
Patent CA-2116037-C (CA)
Title: Method of producing polysaccharide foams
Inventor: EAGLES DANA B
IPC: C08J9/30
Filed: 1993-06-18
Granted: 2000-01-04
Abstract: A method of producing a polysaccharide foam is provided. The method comprises mechanically foaming an aqueous solution of a soluble polysaccharide and thereafter reacting the foam to produce stable foam. Typically, the soluble polysaccharide is an alginate, hyaluronate, carrageenans, chitosan or starch.
Patent CA-2116042-C (CA)
Title: Digital fsk receiver using double zero-crossing
Inventor: TULAI ALEXANDER F
IPC: H04L27/156
Filed: 1994-02-21
Granted: 1999-03-23
Abstract: The present invention relates to a digital frequency shift keyed (FSK) signal receiver comprised of a band-pass filter having passbands corresponding to each modulation frequency of an FSK signal, for receiving and translating the FSK signal, a first zero crossing detector for receiving the translated signal and for generating a value signal having a higher or lower value during a 1 logic bit of the translated signal, and an opposite lower or higher value during a 0 logic bit of the translated signal, a second zero crossing detector for receiving the value signal and for outputting groups of 1's and groups of 0's, the group lengths depending on intervals between the higher and lower values.
Patent CA-2123081-C (CA)
Title: Enzymatic preparation of n-(phosphonomethyl) glycine
Inventor: ANTON DAVID L
IPC: C12P7/40
Filed: 1992-11-03
Granted: 2003-02-25
Abstract: The invention provides a process for the production of N-(phosphonomethyl)glycine, also known as glyphosate. The pro-cess comprises hydrogenating a mixture of glyoxylic acid and aminomethylphosphonic acid, the mixture having been enzymati-tally prepared in situ by the reaction of glycolic acid and oxygen in an aqueous solution containing aminomethylphosphonic acid and the enzymes glycolate oxidase and catalase.
Patent CA-2123931-C (CA)
Title: Method for selective collisional dissociation using border effect excitation with prior cooling time
Inventor: MARCH RAYMOND E
IPC: G01N27/62
Filed: 1994-05-19
Granted: 2004-03-02
Abstract: A variable cooling time is imposed on ions in a quadrupole ion trap prior to excitation through border effect operation. Continuous variation of the cooling time brings about continuous variation of the selected ion internal energy when subjected to the boundary effect such that the boundary effect competes more favorably with ion loss in the trap, and fragmentation reaction channels having successively greater energies of activation can be accessed preferentially.
Patent CA-2132336-C (CA)
Inventor: DOLAN SHAWN E
IPC: B05D3/10
Filed: 1993-03-26
Granted: 2003-10-21
Abstract: Heating an aqueous mixture of a fluoroacid such as H2TiF6 and an oxide, hydroxide, and/or carbonate such as silica produces a clear mixture with long term stability against settling of any solid phase, even when the oxide, hydroxide, or carbonate phase before heating was a dispersed solid with sufficiently large particles to scatter light and make the mixture before heating cloudy. The clear mixture produced by heating can either be mixed with water soluble and/or water dispersi-ble polymers that are polyhydroxyalkylamino-substituted polymers and/or copolymers of p-vinyl phenol, or with soluble hexavalent and/or trivalent chromium, to produce a Composition that improves the corrosion resistance of metals treated with the composition, especially after subsequent painting.
Patent CA-2134371-C (CA)
Title: System and method for packing data into video processor
Inventor: GOVE ROBERT J
IPC: H04N5/44
Filed: 1994-10-26
Granted: 2004-06-15
Abstract: A system (30) for packing data into a video processor is provided. System (30) comprises demultiplexer (32), first and second first in-first out buffer memories (34) and (36), and multiplexes (38).      Demultiplexer (32) divides a field of video data into first and second parts (42) and (44). First and second parts (42) and (44) are stared in first first in-first out buffer memories (34) and (36), respectively.      Multiplexes (38) combines one line from first first in-first out buffer memory (34) with one line from second first in-first out buffer memory (36) to form a single line for processing.
Patent CA-2137991-C (CA)
Title: Process for preparing amorphous, catalytically active silico-aluminas
Inventor: PEREGO CARLO
IPC: B01J21/12
Filed: 1994-12-13
Granted: 2005-06-28
Abstract: An amorphous, micro/mesoporous silica-alumina gel with controlled pore size, having a surface area of at least 500 m2/g and with a molar ratio of SiO2:Al2O3 of at least 30:1, is prepared by hydrolysing and causing a tetra-alkyl ammonium hydroxide, an aluminum trialkoxide, and a tetra-alkyl orthosilicate to gelate, by operating at a temperature equal to, or higher than, the boiling temperature, under atmospheric pressure, of any alcohols which are developed as a by-product from said hydrolysis reaction, without said alcohols being removed, or being substantially removed, from the reaction media; and the so produced gel being dried and fired.      So obtained gel is an active catalyst ,in hydrocarbon conversion reactions, in particular in light olefin isomerization and oligomerization processes, e.g., in propylene oligomerization processes to yield useful liquid hydrocarbons for gasoline and jet fuel formulation.
Patent CA-2138192-C (CA)
Inventor: DIRX LIEVEN
IPC: G03B42/04
Filed: 1994-12-15
Granted: 1998-08-11
Abstract: A method for wrapping a stack of rectangular photographic light-sensitive sheets in a lightproof package and for loading them in daylight in a lightproof cabinet arranged for opening said wrapped stack to free the light-sensitive sheets for further treatment. The method includes the steps of: wrapping photographic light-sensitive sheets in a wrapper formed of two lightproof wrapping foils and sealing said wrapper with a first peripheral lightproof closure spaced outwardly from the four edges of the stack of sheets; providing said wrapper with a clamping, second peripheral lightproof closure located between the first closure and the perimeter of the stack of sheets; opening the first closure in daylight and loading the wrapped stack of sheets while still closed by the second closure in the opened cabinet; and closing said cabinet to make it lightproof, unclamping the second closure and removing the wrapping foil lying on top of the stack of sheets to free them for further processing.
Patent CA-2140825-C (CA)
Title: Rotatable double-ended quick connect valve and method of operation
Inventor: EMERY ROY W
IPC: F16L37/28
Filed: 1995-01-23
Granted: 1998-06-23
Abstract: A rotatable double-ended quick connect valve comprised of a single valve body for rotatably mounting on a shaft, and fitted with two separately located quick connect valve mechanisms for the continuous transfer of fluids (liquid or gaseous or a combination of both) between a pipe connection fixedly mounted on the same shaft, and a continuing series of mating single-ended quick connect valves fixedly mounted in separate locations along the travel path of said double-ended quick connect valve.
Patent CA-2143046-C (CA)
Title: Apparatus for monitoring an atm system
Inventor: ROOSMA ANDRE HENK
IPC: H04L12/56
Filed: 1995-02-21
Granted: 1999-09-07
Abstract: Apparatus for monitoring a flow of ATM cells in which a measured value is calculated in all cases. A 'leaky bucket' mechanism known for this purpose has too few degrees of freedom to be able to monitor the flow of cells accurately enough for it to be possible to deduce from cell flow variations whether a (temporary) cell rate increase is the consequence of an unavoidable variation induced by the transmission system or of an unduly high cell rate (which is in fact avoidable) on the part of the system users. The operation of the apparatus can be adjusted better to the cell flow characteristics if the measured value (CV n) is a function of a previously calculated reference arrival time (RAT n) and the actual arrival time (AT n) of the arriving cell.  The reference arrival time is, in turn, a function of the reference arrival times (RAT n-p, RAT n-q, ...) of one or more preceding cells (n-p, n-q, ...) and of the actual arrival times (AT n-p, AT n-q, ...) of that same one or more preceding cells. In formula form: CV n =f1(RAT n, AT n), where RAT n = f2(RAT n-p, AT n-p, RAT n-q, AT n-q, ...)
Patent CA-2144079-C (CA)
Inventor: TOKANO YUICHI
IPC: G01R29/08
Filed: 1994-07-07
Granted: 2002-01-01
Abstract: Un capteur optique de champ électrique se compose de parties optiques (2-4, 11-13) qui comprennent un cristal optique, et il sert à mesurer l'intensité d'un champ électrique produit naturellement ou sous une contrainte, à l'aide de phénomènes tels que les changements d'intensité, de phase ou de direction de polarisation de la lumière lorsque celle-ci traverse le champ électrique. Les parties optiques sont disposées et enfermées dans un boîtier (7) composé d'au moins un type de matériau choisi parmi des matériaux vitreux tels que le quartz ou les céramiques et des matériaux plastiques tels que le chlorure de vinyle antistatique. L'effet obtenu est plus important lorsque la section de surface principale du boîtier (7) est satinée. Le cristal optique produisant un effet optoélectronique est enfermé dans un matériau isolant thermique. Une résine conductrice est en outre appliquée sur toute la surface du substrat du cristal optique et une résine silicone est appliquée entre les électrodes de modulation.
Patent CA-2144987-C (CA)
Inventor: HAMILTON ROBIN
IPC: B30B9/12
Filed: 1993-09-23
Granted: 2004-12-07
Abstract: A compaction apparatus (2) has a screw conveyor (4) for conveying waste material through a passage (6) and compacting it therein. An exit nozzle (10) is arranged to communicate with the passage (6).  The nozzle (10) has a transverse internal cross-sectional area which enlarges and reduces respectively in response to increasing and decreasing material pressure.
Patent CA-2147079-C (CA)
Title: Process and apparatus for the recovery of hydrocarbons from a reservoir of hydrocarbons
Inventor: BUTLER ROGER M
IPC: E21B43/16
Filed: 1995-04-13
Granted: 2006-10-10
Abstract: A method for the recovery of hydrocarbons from a reservoir of hydrocarbons including injecting a hydrocarbon solvent into the reservoir along with a displacement gas to mobilize hydrocarbons in the reservoir of hydrocarbons; and producing mobilized hydrocarbons from the reservoir of hydrocarbons. The hydrocarbon solvent is injected along one or more predominantly horizontal injection wells in the aquifer that are spaced from the production well or wells. The hydrocarbon solvent is a hydrocarbon solvent selected from the group consisting of ethane, propane, butane. Apparatus for the recovery of hydrocarbons from a reservoir of hydrocarbons includes at least a first and preferably several injection wells drilled into the reservoir, the injection wells having a portion open to fluid communication with the reservoir; and at least a first production well and preferably several production wells drilled into the reservoir, and spaced below the injection wells, the first production well including a pump for pumping oil from the well. A solvent recovery system is also preferably connected between adjacent injection wells and production wells.
Patent CA-2153074-C (CA)
Inventor: MATTSON JACK
IPC: E01D21/00
Filed: 1995-06-30
Granted: 2000-01-11
Abstract: The invention provides a portable bridge, including a novel portable bridge support.  The bridge support comprises a wall and a footing. The wall and the footing are comprised of masonry with inlaid weldable plates positioned to allow attachment of the wall and the footing by welding the plates.  The bridge may be transported in unassembled form and constructed from its components on site at a remote location. The bridge is adapted to provide a sturdy road crossing capable of handling commercial traffic on remote roadways. The bridge components are adapted for simple mounting and demounting, so that the bridge components may be reused.
Patent CA-2161950-C (CA)
Title: Subdermally implantable device
Inventor: MOO-YOUNG ALFRED JOSEPH
IPC: A61M37/00
Filed: 1995-11-01
Granted: 2000-10-24
Abstract: Disclosed is a subdermally implantable drug-delivery  device,  which  contains:   a  central  core extending in an axial direction and having an outer surface and opposing ends, which core includes a matrix of a pharmaceutically effective amount of a subdermally administrable drug substantially uniformly dispersed in a polymeric base material;  an intermediate polymeric layer overlying the outer surface of the central core; and an outer polymeric layer overlying the intermediate layer, wherein the intermediate layer controls the rate of diffusion of the drug from the central core to the outer layer.  In preferred embodiments, the subdermally administrable drug is a contraceptive agent such as the NestoroneTM progestin; the polymeric base material and the   outer   polymeric   layer   each   contain   a polydimethylsiloxane    such    as    Silastic?;    the intermediate layer contains a porous material such as cellulose,  and the  device  further  contains  sealing means cooperating with the biocompatible layer to fully encapsulate  the  central  core  and  the  intermediate layer. The devices provide for the substantially zero-order release of the drug for their intended lifetime without initial overdosing of the drug.   Methods of treating  subjects with the  implantable  drug-delivery devices of the invention, and methods of contraception are also disclosed.
Patent CA-2169200-C (CA)
Title: Power head assembly for electric grass cutting device
Inventor: BRAUN MICHAEL
IPC: A01D34/68
Filed: 1996-02-09
Granted: 2000-11-21
Abstract: The power head assembly for a cordless electric lawnmower has a removable upper housing that includes two spaced batteries, and a lower housing that is mounted to the deck of the grass cutting device.  The upper housing has a handle, and at least one quick disconnect terminal that engages a mating quick disconnect terminal affixed to the lower housing.  The lower housing includes an electric motor that is disposed between the two batteries when the upper housing is in place.  A portion of the electric motor is located below the deck to further reduce the overall height of the device.  The lower housing is mounted to the deck by several bolts which are placed in the same mounting pattern used to mount gasoline engines to a deck, so that the same decks may be used for both the cordless electric and gasoline-powered lawnmowers.
Patent CA-2173659-C (CA)
Inventor: SCHNEIDER ARTHUR J
IPC: G01S3/782
Filed: 1996-04-09
Granted: 2000-07-25
Abstract: A bomb damage assessment system (10) that is carried by a weapon (11) and released to provide imagery of a bombed area before and after bomb delivery. The system (10) comprises a glider. (20) that is releasably secured to the weapon (11) that includes tracking and guidance electronics (34, 40) for programmable controlling the flight thereof. An imaging system (31 ) is disposed in the front end of the glider (20) and a deployable ballute (27) is disposed at the rear end thereof. A data link (36) is provided for transmitting images to a command center for review. The system (10) provides imagery of a target area before, during and after weapon impact.  Television or infrared cameras (31) may be used for day or night missions. As a target area is approached, the glider (20) is released, resulting in an aerodynamic vehicle that flies much slower than the weapon (11). The imaging system (31) tracks the weapon (11) to impact. The explosion of the weapon (11) produces a hot spot that is tracked by the imaging system (31). The hot spot is tracked until a preselected depression angle is reached. The glider (20) banks until the hot spot is at a predetermined angle relative to the centerline thereof. This results in a spiral glide path around the hot spot so that the target area is viewed from all aspects. The spiral path also results in a monotonically decreasing range to the hot spot. The glider may employ a GPS receiver, and the target location in GPS coordinates may be entered into the guidance and control system (40). The glider (20) may be programmed to fly along a specific path or geometric surface in GPS coordinates toward the target. Using a fixed filed of view imaging system (31), a large amount of background is seen from long range and better linear resolution is obtained at short range until the glider (20) descends to the ground. Bomb damage assessment may be performed at the command center within minutes of weapon impact.
Patent CA-2175921-C (CA)
Inventor: BLAKE JAMES NORMAN
IPC: G01C19/72
Filed: 1994-11-23
Granted: 2001-05-08
Abstract: A noise reducer for reducing the results in the system output signal of optical noise introduced into an optical subsystem therein, having a phase modulator, by a source through obtaining a noise representation signal used to offset the noise components in the signal obtained from the output of the optical subsystem.  This noise representation signal is not delayed in the obtaining thereof by any more than half the delays of the waves emitted from the source in reaching the optical subsystem output.
Patent CA-2183014-C (CA)
Inventor: TISBO THOMAS A
IPC: B65H75/40
Filed: 1996-08-09
Granted: 1999-10-19
Abstract: The wall mount hose cart of the instant invention is of a shape and design allowing preassembly thereby eliminating the need for instruction manuals and associated product packaging necessary of wall mount hose reels that are sold in an unassembled state. The wall mount hose reel employs a single unitary frame for support of a flexible garden hose to be wound into a coil of multiple layers by use of a directional stress relieving hose reel spool. Reel flanges are oblong shaped for holding of the hose within the form spool yet providing the nesting ability for assembled carts. A handle is foldable for storage with locks concealed within the base of the handle and a syringe type hub attachment is further disclosed for removal and maintenance of the water seals without tools.      Hub attachments are interchangeable allowing the crank to be attached to either side of the apparatus allowing left or right hand operation.
Patent CA-2189514-C (CA)
Title: Process for chroman carboxylates
Inventor: HORMANN ROBERT EUGENE
IPC: A01N43/16
Filed: 1996-11-04
Granted: 2006-03-21
Abstract: This invention relates to an improved process for the preparation of 5-methylchroman-6-carboxylic acid, a useful intermediate in the preparation of chroman-containing diacylhydrazines which are useful as insecticides, by reacting a Hagemann's ester with a propargyl derivative in the presence of a base and a solvent to produce a propargyl ether, rearranging the propargyl ether by application of heat with a suitable catalyst being present, with or without a solvent, to produce a cyclic ether type compound and isomerizing the cyclic ether type compound with a catalyst in a suitable solvent to produce a chroman ester.     The propargyl ethers and the cyclic ether type compounds produced by the process of the present invention are new.
Patent CA-2189578-C (CA)
Inventor: POLIDORI MARIO
IPC: H01R11/15
Filed: 1996-11-04
Granted: 2000-07-18
Abstract: An electrical connector includes a first jaw member that has an inside surface, an outside surface, a first end and a second end. The first jaw member further has a curved portion formed on the inside surface adjacent the first end. A second jaw member has an inside surface, an outside surface, a first end and a second end. The second jaw member also has a curved portion formed on the inside surface adjacent the first end. A terminal in the form of a stirrup is secured between the second ends of the first and second jaw members. The stirrup has a gap formed therethrough. Projecting from the second end of the first jaw member is a stop member. The stop member is positioned between the gap in the stirrup in order to prevent axial movement of the same along the electrical connector.