baber/WOPTO huggingface dataset:
Patent AU-684515-C (AU)
Title: Pour-on formulations containinng polymeric material, glycols and glycerides
Inventor: CHOI HOO-KYUN
IPC: A61P33/10
Filed: 1994-04-28
Granted: 2002-03-28
Abstract: There is disclosed a topical formulation containing glycols, glycerides, or their derivatives, an avermectin compound (active ingredient) and optionally a polymeric material which has been discovered to provide superior efficacy against endoparasites and ectoparasites when compared to conventional formulations and to maintain the concentration of the active compound in the milk of dairy animals below a safe concentration for human consumption. The formulation contains the avermectin active ingredient and at least 50 % of the glycol or glyceride or polymeric material.
Patent CA-2009315-C (CA)
Title: Amplifying circuit
Inventor: UEDA TOMIO
IPC: H03F1/30
Filed: 1990-02-05
Granted: 1995-06-20
Abstract: Disclosed is an amplifying circuit comprising an amplifying transistor (41) for amplifying an input signal, and a bias circuit for determining a current passing through the amplifying transistor and for determining an output voltage at the output of the amplifying transistor, the bias circuit comprising a current determining transistor (42) for determining a current conducting through the amplifying transistor and a voltage determining transistor (43) for determining an output voltage at the output of the amplifying transistor, the output voltage being determined independently from the determination of the current.
Patent CA-2014891-C (CA)
Title: Sodium borohydride/sodium aluminate
Inventor: COOK MICHAEL M
IPC: C02F1/52
Filed: 1990-04-19
Granted: 1995-10-17
Abstract: An aqueous solution for removing metals from waste water contains sodium borohydride, sodium aluminate and sodium hydroxide.
Patent CA-2017655-C (CA)
Title: A method for the preparation of destructured-starch-based compositions and compositions produced thereby
Inventor: BASTIOLI CATIA
IPC: B29C48/08
Filed: 1990-05-28
Granted: 2001-05-08
Abstract: In order to prepare a starch-based composition usable for the production of articles of biodegradable plastics material, a starch is mixed in a heated extruder with a high-boiling plasticizer and a destructuring agent for a time sufficient to cause the starch to be destructured, in dependence on the destructuring agent used, at a temperature below the boiling point of the plasticizer used and between 120 and 170°C. The composition thus obtained is particularly suitable for the formulation of polymer mixtures with polymers which have relatively high melting points, since it can be processed at temperatures higher than 120°C and is suitable for extrusion at low pressure with these polymers. In particular, compositions thus obtained and mixed with polyvinyl alcohol and/or ethylene vinyl alcohol are suitable for the formation of films by blow-extrusion, since they have the desired characteristics of mechanical strength and resistance to tearing and perforation, or for the formation of articles finished by injection moulding, thermoforming or blowing.
Patent CA-2021744-C (CA)
Title: Fast maximum likelihood decoder
Inventor: LEONE PASQUALE
IPC: H03M13/39
Filed: 1990-07-23
Granted: 1998-05-12
Abstract: A simplified fast maximum likelihood decoder for (1-D) channels comprising a first stage decoder for detecting possible charge violations in a threshold decoded input signal, a second stage decoder for resolving charge violations detected in the first stage decoder by finding the most likely data pattern consistent with the charge constraint of the input signal, and an output shift register for generating corrected estimated decoded data in response to receiving control signals output from the second stage decoder.
Patent CA-2023707-C (CA)
Inventor: CAO TUAN
IPC: A62B7/14
Filed: 1990-08-21
Granted: 1999-02-23
Abstract: In an oxygen concentrator which is intended for aircraft use, a booster compressor is used to increase the pressure of the product gas from the concentrator in order to increase the amount of the gas which can be stored in a plenum.  The booster includes two moving pistons which are rigidly linked together and a series of check valves which control the flow of gases through the compressor.  One of the pistons is driven by air from the rotary valve in the concentrator, and the other piston compresses the product gas for delivery to the plenum.         A small sample of concentrator product gas is monitored by an oxygen sensor for oxygen concentration.  Once the oxygen concentration has reached an acceptable level the booster compressor fills the plenum with product gas.  Thereafter, if oxygen concentration of product gas delivered to the crew from the concentrator falls below the concentration which is required at a particular altitude, the product gas stored in the plenum is delivered to the crew.  The oxygen sensor monitors the concentrator output product gas to the breathing regulator when the stored plenum gas is not being used.
Patent CA-2026849-C (CA)
Title: Method and means for treating sludge
Inventor: TOBLER HUGH J
IPC: B01F13/00
Filed: 1990-10-03
Granted: 1994-01-04
Abstract: ABSTRACT OF THE INVENTION     The method and apparatus of the present invention comprise an elongated auger housing having a rotatable auger therein.          Augers are provided for delivering sludge and an additive such as cement kiln dust to the intake end of the mixer housing.  An auger within the mixer housing conveys the material to the discharge end of the housing, and at the same time mixes the materials together.
Patent CA-2029333-C (CA)
Title: Flow meter for measuring the flow rate in a conduit
Inventor: HAUSSLER HUBERT
IPC: G01F1/26
Filed: 1990-11-05
Granted: 1996-06-25
Abstract: The flowmeter includes a piston that is biased by a spring to a neutral position within an encircling collar, and the piston is movable relative to the collar by and in the direction of the fluid flow to be measured.  Movement of the piston relative to the collar increases the fluid flow through one or more slots provided in one of such components.  A Hall device senses movement of a magnet connected to the piston, and produces an output signal.  A linear relationship between the output signal and the rate of flow of the fluid can be achieved by utilization of a magnetic member whose magnetic intensity or cross-sectional shape varies along its length, or by causing the magnet to move along a curve or other path of travel that varies its distance from the probe of the Hall device.
Patent CA-2031552-C (CA)
Title: Elevated post base
Inventor: COLONIAS KAREN W
IPC: E04H12/22
Filed: 1990-12-05
Granted: 1994-08-23
Abstract: ABSTRACT OF THE DISCLOSURE A metal integral elevated post base for elevating the base of a wood post above a concrete base in which the post base is embedded. The post base includes a metal foot member embedded in the concrete base, a pair of metal post members integrally connected to the foot member partially embedded in and extending above the concrete base, and a pair of seat members integrally connected to the post members for supporting the wood post.  Side members integrally connected to the seat members attach to the sides of the wood post.  The post base is formed in two halves from a sheet metal blank and is configured as opposite halves and folded to form a single post and seat.  Parts of the post base could be welded, but the preferred form is not welded.
Patent CA-2032608-C (CA)
Title: Line laying device and operating method
Inventor: FUJITA TOKUME
IPC: B63B21/00
Filed: 1990-12-18
Granted: 1996-10-22
Abstract: The present invention provides a line laying device used for platform mooring systems which consists of a pair of claws, each with twin hooks.  One claw swivels about a spindle on the other claw, where the one claw has its hooks joined together and is provided with a shoulder.  A pivotal lock biased by a spring is provided with a small wheel at an end remote from a second end mounted on the one claw by means of a second spindle. The other claw is provided with a stop to limit travel of the lock.  A ring to which a wire rope may be tied is carried by the other claw.  Also provided by the present invention is a line laying device for lowering a chain into a body of water wherein the chain is secured at one end to a surface vessel which includes a pair of claws pivotally  coupled  to  each  other  for  engaging  an intermediate link of the chain.  A pivoted lock on one of the claws engages a shoulder on the other claw to maintain the claws in clamping engagement on the link until such time as the chain is lowered to the point where the chain is substantially vertically extended whereupon an adjacent link above the link engaged by the claws will pivot about the link engaged by the claws into engagement with the pivoted  locking member to disengage the locking member from the shoulder, thereby allowing the claws to be disengaged from the link and retrieved by means of a wire rope secured to one end of one of the claws.
Patent CA-2040496-C (CA)
Title: Method for preparing an aqueous food supplement for cattle and thus prepared food supplement
Inventor: VAN ETTEN JACOBUS HENDRIK
IPC: A23K1/00
Filed: 1991-04-15
Granted: 1997-12-09
Abstract: A method for preparing an aqueous food supplement for cattle wherein water and at least one substance is used for preparing an aqueous solution of micro- and macro-elements. At least phosphoric acid being added to said water in order to lower the pH of said aqueous food supplement to be obtained to such an extent, that substantially no phosphate precipitation takes place and at least one substantially water insoluble substance is dissolved in said water acidified by phosphoric acid. An additional food supplement comprising a substantially saturated solution of calcium chloride and/or magnesium chloride can be added to the food supplement.
Patent CA-2042091-C (CA)
Title: Water-soluble soldering flux
Inventor: TURNER RAYMOND L
IPC: B23K35/36
Filed: 1991-05-08
Granted: 1995-02-07
Abstract: A non-toxic, non-corrosive liquid soldering flux is provided, comprising an organic acid, such as citric acid, and a non-toxic carrier, such as water.  This unique flux produces solder joints of high metallic luster and excel-lent quality.   Disposal presents no health hazards, and clean-up of flux residues is accomplished using only water.
Patent CA-2046282-C (CA)
Title: Crosslinked halogen-containing polymer
Inventor: DAHL ROGER
IPC: C08J3/24
Filed: 1990-02-08
Granted: 1996-11-12
Abstract: Method for production of a thermostable crosslinked halogen-containing polymer.  Epoxygroups are added by way of a monomer as for example glycidylmethacrylate.  The crosslinking of the polymer is carried out through an organic silane which can be hydrolyzed.  By this method the crosslinking can be separated from the processing of the polymer as it is catal-yzed by moisture after the processing is carried out.  The crosslinking reaction is carried out very fast.  Good thermo-stability is gained even if the halogen-containing monomer is vinyl chloride.
Patent CA-2053099-C (CA)
Inventor: ZINK DONALD G
IPC: B61D5/00
Filed: 1991-10-09
Granted: 2002-01-22
Abstract: A fluid transport apparatus including an elongated fluid vessel for transporting fluid, such as LPG. One or more breakable containers of compressible fluid are positioned within the fluid vessel. The con-tainers are adapted to break by the force of the vessel fluid surging against them when the fluid vessel is impacted. The compressible fluid within the containers dissipates or eliminates the water hammer pressure resulting from the impact and thereby prevents the walls of the fluid vessel from failing. The breakable containers can be end partitions with one or more rupture discs thereon or collapsible pres-surized containers, such as ordinary tennis balls, held at one or both vessel ends by internal breakaway partition walls.
Patent CA-2053505-C (CA)
Title: Foam forming method and apparatus
Inventor: DWIGGINS JOHN HENRY
IPC: D21H27/00
Filed: 1991-10-16
Granted: 1999-04-13
Abstract: Apparatus and process for  producing foam formed fibrous web in  which the  furnish  is made  up by  mixing a  thin water slurry of fibers at a consistency in the range of from about 0.5 to about 7 weight percent fibers with sufficient aqueous foam containing a  surfactant and having  an air content  in the range of from about 55 to about 80 percent  by volume to form a foamed  fiber furnish  containing from  about 0.1  to about 3 weight percent fibers which is supplied directly  to the forming felt or wire of a twin wire papermaking machine, adding makeup surfactant and discarding excess  agueous foam from the process as required to maintain the desired  volume of foamed liquid therein.
Patent CA-2055867-C (CA)
Title: Image pick up device
Inventor: HASHIMOTO SEIJI
IPC: H04N5/3722
Filed: 1991-11-20
Granted: 1998-06-09
Abstract: An image pick up device has a  plurality  of  rows  of light   receiving  cells,   a  plurality  of  vertical transfer registers each located adjacent to respective one row of light receiving cells and a control circuit for controlling said light  receiving  cells  and  the vertical  transfer  registers.   The  control  circuit makes the  light  receiving  cells  and  the  vertical transfer   registers   carry   out  a  short  exposure operation and a long exposure operation  continuously, and  then  reads  out  both signals sequentially or in parallel  to  synthesise  an  expanded  dynamic  range signal.
Patent CA-2057476-C (CA)
Title: Wall panel system
Inventor: BARTLETT GARY F
IPC: E04F13/08
Filed: 1991-12-10
Granted: 2004-07-06
Abstract: A panel wall system is based on panels, each of which includes a sheet of high density fiberboard, a vapor barrier on the back surface of the fiberboard sheet and a sheet of substantially rigid polymeric material adhesively secured to the front face of the fiberboard sheet, the polymeric sheet having a thickness of not less than about 0.022 inch. The other components of the system are various trims and moldings.
Patent CA-2057536-C (CA)
Title: Cloning and expression of borrelia lipoproteins
Inventor: DUNN JOHN J
IPC: C07K19/00
Filed: 1991-12-12
Granted: 1999-10-26
Abstract: A method is provided herein for preparing highly expressed and soluble recombinant variations of Borrelia lipoproteins such as Borrelia burgdorferi outer surface protein A (OspA). The method includes synthesizing a set of oligonucleotide primers, amplifying the template DNA utilizing the polymerase chain reaction, purifying the amplification products, cloning the amplification products into a suitable expression vector, transforming a suitable host utilizing the cloned expression vector, cultivating the transformed host for protein production and subsequently isolating and purifying the resulting protein. Also provided are soluble, recombinant variations of Borrelia burgdorferi outer surface protein A (OspA) as well as the cloned pET9 plasmid, pET9-OspA.      Transformed E. coli host BL21(DE3)/pLysS, pET9-OspA, is also disclosed.
Patent CA-2062294-C (CA)
Inventor: INADA HIROSHI
IPC: H01L39/24
Filed: 1992-03-04
Granted: 1997-01-14
Abstract: A thin film of oxide superconductor consisting of more than two portions (10; 11, 12) each possessing a predetermined crystal orientation and deposited on a common surface of a substrate (2). At least one selected portion (10) of the thin film of oxide superconductor is deposited on a thin under-layer (4, 100) which facilitates crystal growth of the selected portion and which is deposited previously on the substrate.     The selected portions (10) may consist of a-axis oriented thin film portions while non-selected portions (11, 12) may consists of c-axis oriented thin film portions. The thin under-layer can be a buffer layer (4) or a very thin film (100) of oxide superconductor.
Patent CA-2064726-C (CA)
Title: Monolithic semiconductor harmonic laser sources
Inventor: NORMANDIN RICHARD J F
IPC: H01S3/109
Filed: 1991-06-27
Granted: 1996-09-17
Abstract: Harmonic generation laser sources are disclosed. The sources include a waveguide having a multilayered structure to enhance the harmonic generation. Various embodiments are described, some including an active lasing means built in the waveguide.
Patent CA-2065983-C (CA)
Title: Crop-protecting compositions containing isoxazolines or isothiazolines, novel isoxazolines and isothiazolines, and their preparation
Inventor: LOHER HEINZ-JOSEF
IPC: C07D275/03
Filed: 1992-04-14
Granted: 2004-02-24
Abstract: Crop-protecting compositions containing isoxazolines or isothiazolines, novel isoxazolines and isothiazolines, and their preparation Crop-protecting compositions which contain isoxazolines or isothiazolines of the formula (see formula I) in which X is oxygen or sulfur, R is hydroxyl or has the meanings given in the description, Z is halogen, nitro, cyano, in each case optionally substituted alkyl, alkoxy, alkylmercapto, cycloalkyl, amino, hydroxymethyl, alkyl-amino, dialkylamino, alkoxymethyl, aryl or aryloxy and n is an integer from 0 to 5. Novel isoxazolines and isothi-azolines of this formula, a process for their prepara-tion, and their use as a protection against phytotoxic secondary effects of herbicides.
Patent CA-2066933-C (CA)
Inventor: HAUSDORF JOERG
IPC: B29B17/00
Filed: 1992-04-23
Granted: 1996-05-21
Abstract: A reusable polyvinylchloride regenerate can be obtained from solvent containing PVC waste pastes by admixing same with acylpolyethylene glycol ester in a ratio of 1 part ester to 20 parts paste, adding water under mixing in an amount of about two times the weight of the paste, expelling the solvent with steam, removing the solvent from the resulting two phase distillate and filtering and drying the PVC granulate floating in the water phase of the distillate residue.  The process provides for an environmentally responsible disposal and/or recycling of polyvinyl chloride wastes at low energy cost and chemical costs and independent of whether the wastes contain solvents, or are lacquer-like or pasty.
Patent CA-2068863-C (CA)
Title: Particle-mediated transformation of animal tissue cells
Inventor: JOHNSTON STEPHEN A
IPC: A61K48/00
Filed: 1990-11-13
Granted: 2009-06-02
Abstract: A method of transferring a gene to vertebrate cells is disclosed. The method comprises the steps of: (a) providing microprojectiles, the microprojectiles carrying polynucleic acid sequences, the sequences comprising, in the 5' to 3' direction, a regulatory sequence operable in the tissue cells and a gene positioned downstream of the regulatory sequence and under the transcriptional control thereof; and (b) accelerating the microprojectiles at the cells, with the microprojectiles contacting the cells at a speed sufficient to penetrate the cells and deposit the polynucleic acid sequences therein. Preferably, the target cells reside in situ in the animal subject when they are transformed.  Preferred target cells are dermis or hypodermis cells, and preferred genes for insertion into the target cells are genes which code for proteins or peptides which produce a physiological response in the animal subject.
Patent CA-2073231-C (CA)
Title: Direct catalytic process for the production of hydroxylamine
Inventor: MANTEGAZZA MARIA ANGELA
IPC: B01J21/06
Filed: 1992-07-06
Granted: 2002-09-17
Abstract: Direct catalytic process for the production of hydroxy-lamine said process comprising reacting a mixture which consists essentially of ammonia and hydrogen peroxide, in an organic solvent in the presence of a crystalline or amorphous catalyst which consists essentially of silicon, titanium and oxygen.   This process allows the direct production of hydroxylamine without any intermediate stage.
Patent CA-2075101-C (CA)
Title: Outdoor billiards table
Inventor: FRASCA DINO ANTHONY
IPC: A63D15/00
Filed: 1992-07-31
Granted: 2003-04-01
Abstract: An outdoor billiards table comprises supporting legs, a supporting frame, a playing surface and side and end rails formed from concrete. Main levellers are disposed between the supporting frame and the supporting legs to level the table, and slate levellers are provided along sections of the playing surface for levelling and to compensate for warpage. The playing surface is composed of a mixture of non-shrink construction grout containing graded siliceous aggregate, water reducing agents and fluidizing agents, portland cement and synthetic fibres, and is cast on plexiglass for a glass-smooth finish.
Patent CA-2076409-C (CA)
Title: Rock drilling device
Inventor: RODERT JORGEN
IPC: E21B7/20
Filed: 1992-08-20
Granted: 2002-10-29
Abstract: Rock drilling device comprising a drilling tool with a set of tubes (7) and a set of rods (9) arranged therein. The drilling tool comprises a number of sections which each comprises a tube (7), a rod (9) and an end piece (11). The rod is provided with projections (10) at least near one of its ends for cooperation with parts (13,14) with reduced diameter in the tube and end piece respectively. The part (13) in the tube limits the movement of the rod in a direction away from the end piece. The part (14) in the end piece limits the movement of the rod in a direction towards the end piece. All thread connections (12) between different sections of the drilling tool and between tube and end piece within each section are made in the same way and thus equally easy to break.
Patent CA-2081727-C (CA)
Title: Diphosphonates as corrosion inhibitors for antifreeze coolants and other functional fluids
Inventor: WELCH MICHAEL C
IPC: C23F11/08
Filed: 1992-10-29
Granted: 2000-01-18
Abstract: A coolant or antifreeze composition has one or more glycols or glycol ethers in combination with water, one or more additives, and an effective amount of 1-hydroxyoctylidene-1,1-diphosphonic acid or 1-hydroxydodecylidene-1,1-diphosphonic acid as a corrosion inhibitor.
Patent CA-2082879-C (CA)
Inventor: YEOMANS ALLAN J
IPC: A01B61/04
Filed: 1992-11-13
Granted: 1996-09-03
Abstract: A soil penetrating tool assembly for mounting to a tool bar of a soil penetrating implement including a shank member which has an elongate body, a soil penetrating tool which is located on the first end of the body and a facing plate located on a second end of the body.   The facing plate engages one side of the tool bar, and has a first end and a second end which has an opening.  A clamp-ing plate engages the other side of the tool bar, and has a first end and a forked second end which has two prongs each having openings  including two sections,  generally oblong  in cross-section,  offset  from one another with different centerlines.   The facing plate first end and clamping plate first end include facing flanges each having a through hole and a bolt secures the flanges together with a clearance therebetween.  The opening sections in each of the clamping plate prongs and the facing plate opening define a generally cylindrical passage therethrough with a selected diameter when the shank member is mounted to the tool bar,  and a shear pin extends through that defined passage.
Patent CA-2087161-C (CA)
Title: Process for preparing purified dimethyl naphthalenedicarboxylate
Inventor: HOLZHAUER JUERGEN K
IPC: C07C63/38
Filed: 1992-05-21
Granted: 2003-07-29
Abstract: A process for preparing purified dimethyl-2,6-naphthalenedicarboxylate by the esterification of 2,6-naphthalenedicarbox-ylic acid is disclosed and which process provides for the efficient removal of the mono methyl ester of 2,6-naphthalenedicarboxyl-ic acid produced during the esterification reaction.
Patent CA-2094921-C (CA)
Title: Hard segment size control in polyurethane formation
Inventor: LAI YU-CHIN
IPC: C08G18/80
Filed: 1991-11-20
Granted: 2002-04-02
Abstract: Improved methods for forming urethane elastomers and corresponding urethane prepolymers are disclosed wherein diiso-cyanate and a low molecular weight diol are simultaneously mixed and reacted to form a hard segment which is subsequently reacted with a long chain diol to form the elastomer. Aliphatic diisocyanates are particularly desirable for the manufacture of contact lenses from the urethane prepolymers of this invention.