baber/WOPTO huggingface dataset:
Patent CA-2162321-C (CA)
Title: Block copolymers interpolymerized with in situ polystyrene and process for preparation thereof
Inventor: WOLLUM MARK H
IPC: C08F297/04
Filed: 1995-11-07
Granted: 2003-01-28
Abstract: A process for interpolymerizing a vinyl aromatic hydrocarbon polymer and a block polymer is disclosed. The process includes the following steps: a) forming a block polymer precursor of at least one polymeric block containing conjugated diene monomer contributed units in the presence of an anionic initiator and in an inert diluent, the block polymer precursor having living ends; (b) thereafter adding to the block polymer precursor a charge of a vinyl aromatic hydrocarbon monomer and an additional charge of an anionic initiator to simultaneously form (1) a block polymer having a terminal block formed from the charge of vinyl aromatic hydrocarbon monomer attached to the block polymer precursor and (2) a poly(vinyl aromatic hydrocarbon) polymer interpolymerized with the block polymer. The practice of this process produces a vinyl aromatic hydrocarbon block terminated block polymer, such as SBS, interpolymerized with a polymer formed from vinyl aromatic hydrocarbon monomer, such as polystyrene. The resultant interpolymer has a high Gardner Impact strength and good processibility.
Patent CA-2167232-C (CA)
Inventor: THORMAN CHRISTOPHER SCOTT
IPC: A01D34/62
Filed: 1996-01-15
Granted: 1999-08-31
Abstract: A mechanism for scraping debris from the roller of a reel mower cutting units, and including a rod member having end portions pivotally supported by brackets.  A plate member is fixed with the rod member and includes a non-linear edge portion which generally mates with the surface of the roller. The weight of the rod and plate member urges the rod to pivot the plate member toward the roller for wiping debris from said roller.  The rod members abut portions of the brackets for limiting pivoted motion of the rod and plate members away from the surface of the roller.  The plate member can also be fixed to the rod member so that a straight edge portion of the plate member will wipe debris from a roller having a smooth surface.
Patent CA-2168322-C (CA)
Title: System for use in recycling of waste material
Inventor: LUTZ THEODORE A
IPC: B65D30/02
Filed: 1996-01-29
Granted: 2002-04-23
Abstract: A system of waste material recycling involving the formation of bales of recyclable waste, the bales consisting essentially of recyclable waste material and waste storage containers therefor, wherein the waste storage containers are filled by the individual consumer with the recyclable waste material prior to the formation of the basis and are formed of material that is compatible for recycling with the waste material.  The waste storage containers are preferably obtained simultaneously with, and as a component of, the goods which ultimately become the recyclable waste material stored in the containers.  In the preferred embodiment, the waste storage container comprises a compactly packaged storage container which is compatible for recycling with newsprint and obtained simultaneously with, and as a component of, a single edition of a newspaper, or the like.
Patent CA-2171381-C (CA)
Inventor: ROGERS WILLIAM H
IPC: F41C33/02
Filed: 1996-03-08
Granted: 2001-10-09
Abstract: A handgun holster having a pivotable semirigid safety strap which prevents withdrawal of the handgun until the strap is selectively released by a force on the strap from a detent by hand manipulation of the user in drawing the handgun after the strap has been pivoted away from the handgun.
Patent CA-2173169-C (CA)
Inventor: TOUCHTON SCOTT F
IPC: A01K15/02
Filed: 1996-04-01
Granted: 2002-11-12
Abstract: A disruption generator is provided for use in an electronic animal confinement system for preventing undesirable correction of the animal in the vicinity of incidental conductive structures capable of coupling and re-radiating a transmitter signal for controlling the animal.  The disruption generator produces a disruption signal for masking, preventing, or otherwise interfering with reception of the transmitter signal by an animal control receiver device mounted on the animal.  The disruption generator can be connected to such incidental conductive structures as utility conduits, door frames, household wiring, and the like, to prevent undesirable correction of the animal in the vicinity thereof due to inductive or resonant coupling of the transmitter signal by such structures.  Additionally, the disruption generator can be connected to a disruption antenna for providing a portion of the animal control area, for example, a corridor across the perimeter of the area, in which the animal control receiver will not apply a correction stimulus to the animal.
Patent CA-2182657-C (CA)
Title: Method of removing water-insoluble organic contaminants from an acidic aqueous stream
Inventor: BEALL GARY W
IPC: C02F1/28
Filed: 1996-08-02
Granted: 2007-02-13
Abstract: Hydrocarbons and other substantially water insoluble organic contaminants may be efficiently removed from a low pH aqueous wastewater stream by contacting the stream with a sorption medium comprising an organoclay, preferably in admixture with a diluent having a density similar to that of the clay. Surprisingly, the sorbent is not adversely affected by contact with the extremely low pH aqueous stream.
Patent CA-2189631-C (CA)
Inventor: KIMURA AKIRA
IPC: C22B3/04
Filed: 1996-11-05
Granted: 2002-11-05
Abstract: A process for recovering scandium economically with high efficiency by concentration and separation from an oxide ore containing nickel  and a  small  amount of scandium as well as a large amount of iron and/or aluminum comprises the steps of acid leaching the oxide ore under a high-temperature, high-pressure oxidative atmosphere while restraining leaching of the iron and/or aluminum, thereby selectively leaching substantially all nickel and scandium from the ore,  recovering the nickel from the resulting leaching solution  as  a  precipitated  sulfide while not precipitating the scandium as a sulfide but leaving the total amount thereof in the solution, and then adjusting the pH of the solution with a precipitant to recover the scandium from the solution as a high-concentration scandium hydroxide or carbonate by concentration and separation.
Patent CA-2192479-C (CA)
Title: Free-standing bag
Inventor: TREU WOLFGANG
IPC: B65D75/00
Filed: 1995-01-09
Granted: 2003-01-07
Abstract: The present invention refers to a free-standing bag made of a heat-sealable or weldable plastic material and used for receiving therein liquids and/or pastes, said bag comprising two side walls connected to each other along their longitudin al edges, a foldable bottom element, which is disposed between said side walls and which serves as a supporting base, being inserted between the bottom transverse edges, whereas in the area of the other ends of said side walls a foldable l id element, which is disposed between said side walls, is inserted, and further comprising a discharge opening. In order to improve the handling characteristics of the free-standing bag when the contents are being poured out and in order  to ensure also ease of manufacture, the discharge opening is formed between the upper transverse edge of a side wall and complementary edge of the lid element.
Patent CA-2193038-C (CA)
Inventor: DO ROSARIO FRANCISCA FERREIRA
IPC: C02F5/14
Filed: 1996-12-16
Granted: 2004-05-25
Abstract: A process for fixing of a scale inhibitor in a subterranean formation, which comprises: a) injecting into the formation a solution comprising a polymeric scale inhibitor, a metal ration, a precursor and a weak organic acid, wherein the polymeric scale inhibitor and metal cation are slightly soluble in water in the formation and wherein the precursor reacts in the formation to produce an alkaline compound which causes the polymeric scale inhibitor to precipitate in the formation; and b) allowing the polymeric scale inhibitor to precipitate in the formation in an amount which is effective in inhibiting scale formation for a given period of time.
Patent CA-2203926-C (CA)
Inventor: WU CHENG H
IPC: A61M11/00
Filed: 1996-08-22
Granted: 2006-12-12
Abstract: L'invention concerne un dispositif et un procédé de nébulisation de liquides. Un élément d'alimentation en liquide (24) alimente la surface arrière (40) en un volume unitaire prédéterminé de liquide. Un élément de vibrations soumet l'enveloppe mince (36) à des vibrations, de manière à éjecter des gouttelettes de liquide depuis la surface avant (38) de ladite enveloppe mince.
Patent CA-2204952-C (CA)
Inventor: HUITEMA THOMAS
IPC: A61B17/32
Filed: 1997-05-09
Granted: 2007-01-16
Abstract: An articulating surgical instrument which has an articulation transmission assembly for remotely articulating an end effector of the instrument is disclosed. The articulation transmission assembly includes a detent housing mounted on the instrument with a plurality of detent teeth. A compressible deck with a plurality of ratchet deck teeth is matingly coupled with the teeth of the detent housing when the assembly is in a first locked position. An actuator is fitted on the detent housing for applying a rotational force on the deck. A drive member is in communication with the deck for translating rotational movement of the deck into axial movement of an elongated transmission member which is attached to the drive member. When a rotational force is applied to the actuator, the deck compresses to decouple the teeth of the deck from the teeth in the detent housing. The decoupling of the teeth reduces the rotational force necessary to rotate the deck and consequently the drive member which moves the elongated transmission member axially to effect articulation.  Consequently, the ratcheting rotation of the deck from the first locked position to a second locked position, and therefore the articulation of the end effector from a first position to a second position angled from the first position, is significantly facilitated.
Patent CA-2205047-C (CA)
Inventor: CALDERON ALBERT
IPC: C10B47/00
Filed: 1995-11-03
Granted: 2001-03-13
Abstract: This invention discloses a new method for the production of coke from coals.  In the present invention, coke is continuously produced by heating a moving charge of coal inside the annular cross-section (13) defined by two concentric tubes (11, 12). The coking chamber (13), which includes a large diameter tube (11) and a concentric smaller diameter tube (12), is force fed with a coal such as metallurgical coal. The coal is bi-directionally heated along a controlled temperature gradient between the inner wall of the small diameter tube (12) and the outer wall of the large diameter tube (11). The coal is transformed to coke as it travels longitudinally along the axis of both tubes.  Coke is discharged from the chamber at the end opposite to which it was charged and is cooled before being exposed to the atmosphere. Gases generated during the coking process are collected and treated. All of these operations are accomplished in a closed system to prevent pollution.
Patent CA-2222323-C (CA)
Title: Vascularized tissue regeneration matrices formed by solid free-form fabrication methods
Inventor: CIMA MICHAEL J
IPC: A61F2/02
Filed: 1996-06-05
Granted: 2009-08-04
Abstract: Solid free-form fabrication (SFF) methods are used to manufacture devices for allowing tissue regeneration and for seeding and implanting cells to form organ and structural components, which can additionally provide controlled release of bioactive agents, wherein the matrix is characterized by a network of lumens functionally equivalent to the naturally occurring vasculature of the tissue formed by the implanted cells, and which can be lined with endothelial cells and coupled to blood vessels at the time of implantation to form a vascular network throughout the matrix. The SFF methods can be adapted for use with a variety of polymeric, inorganic and composite materials to create structures with defined compositions, strengths, and densities, using computer aided design (CAD). Examples of SFF methods include stereo-lithography (SLA), selective laser sintering (SLS), ballistic particle manufacturing (BPM), fusion deposition modeling (FDM), and three-dimensional printing (3DP).
Patent CA-2236520-C (CA)
Inventor: STEWART JOHN S
IPC: B23Q11/00
Filed: 1996-11-13
Granted: 2005-11-08
Abstract: A removable cutterhead insert (18) for use in a helical cutterhead (10) for an industrial woodworking machine, the helical cutterhead (10) including a generally cylindrical portion (16), a plurality of circumferential, spaced grooves (17) extending into the cutterhead body from the periphery of the cylindrical portion (16) and adapted to receive th e removable cutterhead inserts (18), and fasteners for removably securing the cutterhead inserts in the grooves (17); the cutterhead insert (18) includes a mild steel insert body (22) and two blade units (24); the insert body (22) having raised portions having triangular pockets formed therein so as to have two inwardly-facing flat portions, a hole to receive the fasteners for removably securing the cutterhead insert in the grooves between the inwardly-facing flat portions and two bolt holes to secure the two blade units to the insert body; and the blade units are triangular with cut-off corners (36) each including a blade edge (38) and configured so as not to occlude the countersunk hole and to ha ve the blade edges disposed to align with the blade edges of other blade units.
Patent CA-2236886-C (CA)
Inventor: SANDERS GLEN A
IPC: H01S3/067
Filed: 1996-12-16
Granted: 2004-08-31
Abstract: A pumped rare-earth fiber source wavelength control device, having source wavelength control effected by pump source wavelength and power control. The maintaining of pump wavelength and power control can be attained several ways such as by use of a wavelength sensitive coupler, a short length of fiber having an embedded grating, and a modulated grating embedded fiber.
Patent CA-2239318-C (CA)
Inventor: GEIB GEORGE GREGORY
IPC: C09K8/64
Filed: 1998-05-29
Granted: 2003-09-09
Abstract: The invention relates to compositions and methods for gelling liquid hydrocarbons by the introduction of certain phosphate esters, a crosslinking agent, and an enhancer. The enhancer of the present invention is preferably an oxyalkylated amine or a blend of an oxyalkylated amine with another amine or a non-nitrogen-containing component. Mixed phosphate esters containing an oxyalkylene group are useful in the practice of the invention. Gel-forming compositions for addition to liquid hydrocarbons, as well as methods for forming fracturing fluids, are encompassed. The present compositions and methods are an improvement in the field of hydrocarbon gelling, e.g., in fracturing formations, by providing more rapid gellation and greater viscosities.
Patent CA-2242419-C (CA)
Title: Stable perfumed bleaching compositions
Inventor: SCOCCIANTI RAFFAELE
IPC: C11D3/39
Filed: 1997-01-08
Granted: 2002-11-12
Abstract: Stable perfumed highly acidic liquid compositions are disclosed which comprise a source of active oxygen, a surfactant and a cyclic terpene/sesquiterpene perfume like eucalyptol. Said compositions are particularly suitable to clean hard-surfaces like toilet bowls.
Patent CA-2243711-C (CA)
Inventor: MATSUDA JUNICHIRO
IPC: F22G1/02
Filed: 1997-12-16
Granted: 2002-07-02
Abstract: Suspended superheaters (52 and 53) alone are provided in the outlet of a furnace. The heat transfer areas of these superheaters are determined so that the temperature of exhaust gas in the rear flow thereof may be 1000-1100 ~C  under the maximum load of a boiler. The passages of the exhaust gas in the rear flow of the superheaters (52 and 53) are divided into subpassages along the flow of the exhaust gas and a damper for regulating the flow rate of the exhaust gas flowing through each subpassage is provided at an outlet of each of the subpassages. A horizontal reheater (41) is provided for the subpassages. Since the temperature difference between the temperature (1000-1100 ~C) of the exhaust gas flowing around the reheater (41) and the temperature of steam flowing through the reheater (41) is large, a highly effective heat exchange can be conducted for even a small heat transfer area.  Accordingly, an increase in the heat transfer area of the reheater (41), that is, in the size of the whole, can be suppressed.
Patent CA-2244245-C (CA)
Inventor: JANUSZ JOHN MICHAEL
IPC: C07D333/54
Filed: 1997-01-30
Granted: 2005-11-29
Abstract: A compound having structure (I) wherein (a) n is from 1 to about 3; (b) X is selected from the group consisting of O, S, SO, or SO2; (c) Y is independently hydrogen or straight, branched or cyclic alkyl having from 1 to about 4 carbon atoms, or the Y's are bonded together to form an alkanyl ring having from about 3 to about 7 atoms; (d) Z is hydrogen or straight, branched or cyclic alkyl having from 3 to about 10 atoms other than hydrogen; (e) W is O or S; and (f) Het is a heteroaryl group comprising one or more rings each ring containing from about 5 to about 6 atoms other than hydrogen and wherein the group contains at least one heteroatom selected from O, N, or S. Pharmaceutical compositions comprising such compounds, and methods of treating inflammation or pain usin g such compounds.
Patent CA-2248981-C (CA)
Inventor: GOCKE CHRISTOPHER D
IPC: C12Q1/70
Filed: 1997-03-14
Granted: 2009-11-24
Abstract: L'invention porte sur la détection d'un acide nucléique extracellulaire spécifique dans des fractions du plasma ou du sérum de sang humain ou animal associé à des maladies néoplasiques ou prolifératives. L'invention porte plus spécifiquement sur la détection d'acide nucléique dérivant d'oncogènes mutants ou d'autres ADN associés à des tumeurs, présents dans des fractions du plasma ou du sérum du sang par extraction rapide de l'ADN suivie d'une amplification de l'acide nucléique, avec ou sans enrichissement en ADN mutant. L'invention porte en particulier sur la détection, l'identification et le suivi de l'existence, de la progression ou de l'état clinique des néoplasmes bénins, prémalins ou malins chez l'homme et d'autres animaux contenant une mutation associée au néoplasme, par détection de l'acide nucléique muté du néoplasme dans des fractions de plasma ou de sérum. L'invention permet la détection d'un acide nucléique extracellulaire associé à une tumeur, dans le sérum ou le plasma d'humains ou d'animaux reconnus comme présentant une maladie néoplasique ou proliférative ou chez des individus n'ayant été l'objet d'aucune anamnèse ou diagnostic antérieur faisant état de maladies néoplasiques ou prolifératives. L'invention donne la possibilité de détecter des acides nucléiques dérivant de séquences génétiques connues comme étant associées à la néoplasie, telles que des oncogènes, ainsi que des séquences génétiques non reconnues antérieurement comme étant associées aux maladies néoplasiques ou prolifératives. L'invention fournit ainsi des procédés d'identification précoce de tumeurs colorectales, pancréatiques, pulmonaires, du sein, de la vessie, des ovaires, de lymphomes et autres malignités provoquées par des mutations de l'ADN liées à des tumeurs, et des procédés de suivi du cancer et d'autres troubles de caractère néoplasique chez l'homme et l'animal.
Patent CA-2251433-C (CA)
Inventor: MAKWANA MANHER MOHAN
IPC: C22B3/08
Filed: 1998-10-21
Granted: 2005-12-13
Abstract: There is disclosed a process for separating and recovering nickel and copper values from a nickel-copper matte which may contain iron and arsenic. Finely divided nickel-copper matte undergoes one or more steps of sulphuric acid leaching at atmospheric pressure to produce a nickel sulphate solution and an iron and/or arsenic containing copper-rich sulphide residue. The copper-rich sulphide residue is repulped in sulphuric acid solution to selectively redissolve most of the iron and arsenic and the iron and arsenic containing solution is separated from the copper-rich residue. The iron and arsenic are largely precipitated from the leach solution in a pressure hydrolysis step and the iron and arsenic containing precipitate is separated and discarded. The iron and arsenic-depleted solution is recombined with the copper-rich sulphide residu e from the acid repulp step and the resulting slurry is treated in a non-oxidizing pressure leach in which nickel arsenic and iron are extracted. The process produces a nickel sulphate solution containing low levels of copper, iron and arsenic and a copper sulphide product containing low levels of nickel, iron, arsenic and other impurities.
Patent CA-2252013-C (CA)
Title: Procedure for the detection of high virus concentrations in blood plasma and/or blood serum by means of the polymerase chain reaction
Inventor: WEIMER THOMAS
IPC: C12N15/09
Filed: 1998-11-26
Granted: 2011-12-20
Abstract: A procedure for the detection of high virus concentrations in blood plasma and/or blood serum by means of the polymerase chain reaction (PCR) is described, in which the sensitivity of the PCR is restricted by the use of suboptimal nucleic acid extraction, amplification or detection conditions. This procedure is suitable, for example, for the detection of parvovirus DNA in plasma or serum, it being possible to adjust the sensitivity of the PCR such that the parvovirus DNA is only detected in samples whose DNA content is greater than 10 6 to 10 7 genome equivalents/ml. The detection of the parvovirus DNA amplification carried out is carried out in the sample by measurements of the fluorescence.
Patent CA-2253527-C (CA)
Title: Procede de dosage
Inventor: COOKSON ALAN DEREK
IPC: G01N33/557
Filed: 1997-05-08
Granted: 2007-04-10
Abstract: L'invention concerne un procédé de dosage cinétique pour quantifier un analyte dans un échantillon.
Patent CA-2255331-C (CA)
Inventor: VIEGENER WALTER
IPC: F16L13/14
Filed: 1998-12-09
Granted: 2009-10-06
Abstract: To produce an undetachable pressed connection between a fitting (1) and a metal pipe end (4) whose inside diameter is greater than 54 mm, the sleeve (3) of the fitting is furnished, in addition to the seal (9), with a retaining element (10) that is embedded in the material of the metal pipe when the sleeve is radially pressed together with the metal pipe end (4). A form-closed connection is created in the area of the retaining element whereby a round or almost round cross section of the sleeve is also present in the final pressed state and the sealing and retaining forces are the same or almost the same over the entire periphery.
Patent CA-2259455-C (CA)
Inventor: ARROYO GEORGES
IPC: F24F3/16
Filed: 1997-06-20
Granted: 2004-10-26
Abstract: The work surface to be protected (1) is cleared and accessible both from above (102) and at least on one side, called the free side (100). The method is characterised in that clean air is continuously blown above the work surface (1) from the side (101) opposite the free side (100), in the form of a substantially horizontal flux that sweeps across the work surface (1), towards the free side (100), and which has a speed gradient such that the upper layer - or top stream - (V1) has a speed substantially greater than the air flowing in the proximity of the top surface (10) of the work surface (1); the totality or the main part of the flux is drawn from the free side (100), by means of a suction vent (20) extending along and immediately adjacent to the edge (10b) of the work surface (1). The invention is useful for protecting a fixed or mobile surface supporting various articles sensitive to the contamination of the ambient air.
Patent CA-2262816-C (CA)
Inventor: SAKAGAMI YOUJI
IPC: A01N37/18
Filed: 1997-07-31
Granted: 2002-09-03
Abstract: Peptides represented by general formula (I) and plant cell growth substances  characterized by containing these peptides wherein R1 and R2 represent each SO3H or one of them represents SO3H while another represents H; Z represents  an .alpha.-amino acid residue; X represents H or acyl; and Y represents OH, C1- 6 alkoxy or NH2.