baber/WOPTO huggingface dataset:
Patent CA-2244101-A1 (CA)
Title: An optimal procedure for isolation of mutant mitochondrial alleles
Inventor: DAVIS ROBERT E
IPC: C12Q1/68
Filed: 1997-11-26
Abstract: A sample preparation procedure for mitochondrial (mt) DNA analysis is described. The present method for isolating mtDNA uses sedimentation techniques for separating erythrocytes from lymphocytes and platelets (crude buffy coat fraction), followed by DNA extraction from the crude buffy coat fraction by boiling in water. This approach improves the yield of mutant DNA, enhancing the sensitivity of subsequent mutation interrogation techniques and allowing for meaningful statistical treatment of the degree of heteroplasmy within the mitochondrial DNA.
Patent CA-2245576-A1 (CA)
Title: Process for preparing purified nucleic acid and the use thereof
Inventor: KUHNE WOLFGANG
IPC: C12N15/09
Filed: 1997-01-24
Abstract: The invention relates to a nucleic acid preparation with a content of below 1 % protein, preferably below 0.1 % protein, free of ethidium bromide, phenol, caesium chloride and detergents based on octyl phenol poly(ethylene glycol ether)n and with a content of below 1 EU/mg DNA of endotoxins. Said preparation is suitable as a drug particularly in gene therapy.
Patent CA-2248947-A1 (CA)
Title: Combined cardiotomy and venous reservoir
Inventor: STROM JAMES
IPC: B01D19/00
Filed: 1997-01-21
Abstract: A combined venous and cardiotomy blood reservoir (10) is provided that includes a rigid shell (12) having a top (14), a bottom (16), and a continuous side wall (18). The top and bottom walls (14, 16) are connected to the continuous side walls (18) so as to define a reservoir (10) for venous and cardiotomy blood. A double column structure (20, 24) is provided within the blood reservoir (10), the first column (20) for receiving the degassing venous blood and the second column (24) for receiving, filtering and defoaming cardiotomy blood.
Patent CA-2250813-A1 (CA)
Title: Valve, coupling comprising such a valve and method for assembling the coupling
Inventor: DECLER C PETER
IPC: B67D1/07
Filed: 1997-04-11
Abstract: The present invention relates generally to a device for controlling fluid flow. The device includes a housing (22) having a front end (28) and a back end (30). The housing defines a flow passageway (24) extending longitudinally between the front and back ends. A first retaining structure (32) is connected to the housing and positioned within the flow passageway. The device also includes a valve mechanism (20) for opening and closing the flow passageway of the housing. The valve mechanism includes a poppet member (26) mounted within the flow passageway. The poppet member includes a first end (48) opposite from a second end (46). The first end includes a second retaining structure (50) that cooperates with the first retaining structure of the housing to provide a snap fit connection for retaining the poppet member within the housing.
Patent CA-2252288-A1 (CA)
Title: Differential locking device
Inventor: HORBATY THEODORE J
IPC: F16H48/20
Filed: 1998-10-30
Abstract: A differential locking device is for use with an all terrain vehicle for locking a pair of wheels together which are connected by a differential such that the wheels rotate together. The differential includes an inner case rotatably mounted within an outer case which is secured to the vehicle. A pair of inner pinions are mounted on a shaft for rotation within the inner case. The shaft extends transversely to an axis of rotation of the inner case. A pair of side gears are mounted on opposing sides of the inner case. Each side gear meshes with the pair of inner pinions such that rotation of one side gear in relation to the inner case will rotate the other side gear in an opposite direction in relation to the inner case. A pair of wheel axles are connected to and extend laterally from respective side gears for rotation with the side gear. The differential locking device is an annular plate having inner gear teeth extending radially inwards from an inner edge and outer gear teeth extending radially outward from a periphery of the plate. The inner gear teeth mesh with the inner case while the outer gear teeth mesh with one of the side gears. This will lock the side gear to the inner case and thus restrict rotation of both side gears relative to the inner case. The wheels are each connected to an end of the respective wheel axles which extend from the side gears such that the wheels rotate together.
Patent CA-2257303-A1 (CA)
Title: Biconvex rapidly disintegrating dosage forms
Inventor: POSAGE GARY W
IPC: A61K31/445
Filed: 1997-06-10
Abstract: The present invention relates to a method of preparing solid rapidly disintegrating dosage forms shaped as biconvex tablets having symmetrical top and bottom surfaces, and to dosage forms obtainable thereby.
Patent CA-2261002-A1 (CA)
Title: Ensemble galerie
Inventor: STAPLETON CRAIG A
IPC: B60R9/045
Filed: 1997-07-14
Abstract: Ensemble galerie partiellement placé dans un canal de jointure de panneau de toit. Le montant latéral de l'ensemble galerie peut être attaché au panneau de toit du véhicule et comporte un rail et une partie angulaire extérieure. Un dispositif de retenue comporte une partie base placée coulissante dans le rail afin de supporter le dispositif de retenue sur les montants latéraux. Un verrou comporte un levier connecté pivotant au dispositif de retenue afin de placer ledit dispositif à des positions individuelles le long du montant latéral. Une garniture de parement est fixée le long du montant latéral et s'étend depuis la partie angulaire extérieure dans le canal de jointure de manière à cacher pratiquement le montant latéral à la vue lorsque l'on regarde depuis une position latérale par rapport au véhicule. D'autres modes de réalisation de la garniture de parement et du verrou sont également décrits.
Patent CA-2261147-A1 (CA)
Title: Polyprolylene resin compositions and interior automotive trim parts
Inventor: HATADA KOUICHI
IPC: C08F297/08
Filed: 1998-05-20
Abstract: A polypropylene resin composition is disclosed which comprises (a) 50-80 % by weight of a specific polypropylene/ethylene-propylene copolymer composition, (b) 5-40 % by weight of a specific ethylene/.alpha.-olefin copolymer rubber, (c) 1-10 % by weight of a specific hydrogenated diene block copolymer, and (d) 10-30 % by weight of talc, wherein the polypropylene component of the component (a) has a melt flow rate of 100-1,000 g/10 min and a Cf value (cross fractionation ratio) of not more than 0.5. The resin composition has excellent flowability and can impart excellent rigidity, high-temperature rigidity and impact resistance, and well-balanced combination thereof to the molded articles.
Patent CA-2262497-A1 (CA)
Inventor: SKOOG HENRY
IPC: D06P1/30
Filed: 1997-07-09
Abstract: A process for treating a fibrous material which includes the steps of: 1) providing a liquid suspension composed of fibrous material; 2) intermixing the liquid suspension of fibrous material with a treatment over a time period T1 wherein the treatment requires a period of time TR sufficient to treat the fibrous material; 3) depositing the liquid suspension of fibrous material and intermixed treatment onto a forming surface to form a layer and removing a substantial portion of the liquid, over a period of time T2; and 4) applying pressurized jets of a liquid to the layer of fibrous material to wash unused treatment from the fibrous material within a period of time T3. Periods of time T1, T2 and T3 are immediately consecutive and amount to a total period of time at least as great as TR. Also disclosed is a hydraulically entangled structure composed of: 1) at least one layer of a wet-laid nonwoven web containing fibrous cellulosic material; and 2) colorfast dye imparting color to the fibrous cellulosic material such that the fibrous cellulosic material is colorfast.
Patent CA-2262625-A1 (CA)
Title: Filter for a wet/dry vacuum cleaner for wet material collection
Inventor: GIANNETTA RICHARD W
IPC: A47L7/00
Filed: 1997-08-20
Abstract: The present invention is an improved method of employing a wet/dry vacuum cleaner for wet material pick-up. By employing a hydrophobic and air permeable filter material, such as an expanded polytetrafluoroethylene (PTFE), with a tight gasket around its edge in place of a conventional wet/dry vacuum filter, it has been determined that the filter can be retained in place at all times during operation, regardless of the material being collected.
Patent CA-2262868-A1 (CA)
Title: Bridged metallocene complex for the (co)polymerization of olefins
Inventor: BANZI VIVIANO
IPC: C08F4/6592
Filed: 1999-03-08
Abstract: A "bridged" bis-cyclopentadienyl complex which can be advantageously used for the formation of a catalytic system active in the (co) polymerization of ethylene and other .alpha.-olefins is represented by means of the following formula (II): (see formula II) wherein: M represents a metal selected from titanium, zirconium or hafnium; A' and A" each independently represent an anion containing an .eta.75-cyclopentadienyl ring coordinated to M; R' or R" each independently represents a group of an anionic nature a-bound to the metal M; B represents an unsaturated bivalent organic residue having from 1 to 30 carbon atoms, bound, respectively, to the ring of group A' and to the -CH2- methylene group by means of unsaturated carbon atoms. This complex, combined with a suitable cocatalyst, forms a catalyst with a high activity in the polymerization of olefins, producing polymers with a high molecular weight, especially in the case of the copolymerization of ethylene with a second .alpha.-olefin.
Patent CA-2266590-A1 (CA)
Inventor: MARCUS STEVEN
IPC: A61F2/82
Filed: 1997-09-16
Abstract: The invention provides an apparatus and system for ablation of body structures o r tissue in the region of the rectum. A catheter is inserted into the rectum, and an electrode is disposed thereon for emitting ener gy. The environment for an ablation region is isolated or otherwise controlled by blocking gas or fluid using a pair of inflatable balloon s at upstream and downstream locations. Inflatable balloons also serve to anchor the catheter in place. A plurality of electrodes are dispos ed on the catheter and at least one such electrode is selected and advanced out of the catheter to penetrate and ablate selected tissue inside the body in the region of the rectum. The electrodes are coupled to sensors to determine control parameters of the body structure or tiss ue, and which are used by feedback technique to control delivery of energy for ablation or fluids for cooling or hydration. The catheter includes an optical path disposed for coupling to an external view piece, so as to allow medical personnel to view or control positioning of t he catheter and operation of the electrodes. The catheter is disposed to deliver flowable substance for aiding in ablation, or for aiding in repair of tissue, such as collagen or another substance for covering lesions or for filling fissures. The flowable substances are delivered using at least one lumen in the catheter, either from at least one hole in the catheter, from an area of the catheter covered by a microporous membrane, or from microporous balloons.
Patent CA-2273090-A1 (CA)
Title: Liquid compositions containing n-alkyl ammonium acetonitrile salts
Inventor: PETRIN MICHAEL J
IPC: C11D17/04
Filed: 1997-11-18
Abstract: The invention provides liquid cleaning or bleaching compositions containing compounds having the structure of Formula (I) wherein A is a saturated ring formed by five atoms in addition to the N1 atom, the five saturated ring atoms being four carbon atoms and a heteroatom, the substituent R1 bound to the N1 atom of the Formula (I) structure including either (a) a C1-24 alkyl or alkoxylated alkyl where the alkoxy is C2-4, (b) a C4-24 cycloalkyl, (c) a C7-24 alkaryl, (d) a repeating or nonrepeating alkoxy or alkoxylated alcohol, where the alkoxy unit is C2-4, or (e) -CR2R3CN where R2 and R3 are each H, a C1-24 alkyl, cycloalkyl, or alkaryl, or a repeating or nonrepeating alkoxyl or alkoxylated alcohol where the alkoxy unit is C2-4, the R2 and R3 substituents are each H, a C1-24 alkyl, cycloalkyl, or alkaryl, or a repeating or nonrepeating alkoxyl or alkoxylated alcohol where the alkoxy unit is C2-4, and wherein Y is a generally anionic counterion and Z is in the range of 0 to 10.  Additional, adjunct materials commonly found in liquid cleaning and bleaching compositions can be added.
Patent CA-2273123-A1 (CA)
Title: System and method for generating a gaseous fuel from a solid fuel for use in a gas turbine based power plant
Inventor: NEWBY RICHARD ALLEN
IPC: F25J3/04
Filed: 1999-05-27
Abstract: A system and method for generating power by producing a clean gaseous fuel from a solid fuel, such as coal. A flow of oxygen enriched compressed air is formed by combining compressed ambient air from a gas turbine compressor and a flow of oxygen from an air separation unit. The coal is supplied to a gasifier, along with the flow of oxygen enriched compressed air in which the coal is combusted. The gasifier produces a flow of hot gaseous fuel containing slag and other particulate matter. The slag is removed from the hot gaseous fuel and, after processing, forms the bed media for a filter that removes particulate matter from the gaseous fuel. The air separation unit also produces a flow of nitrogen. The nitrogen is mixed into the air prior to filtering so as to cool the air. After cooling and cleaning, the gaseous fuel is combusted in the combustor of a gas turbine, thereby generating shaft power.
Patent CA-2273728-A1 (CA)
Title: Weighted backus filter method of combining dual sensor traces
Inventor: BARR FREDERICK J
IPC: G01V1/38
Filed: 1999-06-08
Abstract: A method for attenuating water column reverberations in a dual sensor seismic signal, whereby a pressure signal and a velocity signal are transformed from the time domain to the frequency domain, generating a transformed pressure signal and a transformed velocity signal, respectively. Values for weighting factors K p and K v are selected and multiplied times the transformed pressure signal and the transformed velocity signal, respectively, generating a weighted pressure signal and a weighted velocity signal, respectively. The weighted pressure signal and the weighted velocity signal are summed, generating a summed signal. Values for ocean bottom reflectivity R and Z, the frequency domain delay operator for two-way travel time in the water layer, are determined. A weighted inverse Backus filter is calculated and multiplied times the summed signal, generating a filtered signal. The filtered signal is transformed from the frequency domain to the time domain.
Patent CA-2275885-A1 (CA)
Title: Transgenic potatoes having reduced levels of alpha glucan l- or h-type tuber phosphorylase activity with reduced cold-sweetening
Inventor: ARMSTRONG JOHN DAVID
IPC: C12N15/09
Filed: 1998-02-05
Abstract: Potato plants which exhibit reduced levels of a glucan L-type tuber phosphorylase (GLTP) or a glucan H-type tuber phosphorylase (GHTP) enzyme activity within the potato tuber are provided. The conversion of starches to sugars in potato tubers, particularly when stored at temperatures below 7 ° C, is reduced in tubers exhibiting reduced GLTP or GHTP enzyme activity. Reducing cold-sweetening in potatoes allows for potato storage at cooler temperatures, resulting in prolonged dormancy, reduced incidence of disease, and increased storage life. Methods for producing potato plants which produce tubers exhibiting reduced GLTP or GHTP enzyme activity are also provided. Reduction of GLTP or GHTP activity within the potato tuber may be accomplished by such techniques as suppression of gene expression using homologous antisense RNA, the use of co-suppression, regulatory silencing sequences, chemical and protein inhibitors, or the use of site-directed mutagenesis or the isolation of alternative alleles to obtain GLTP or GHTP variants with reduced starch affinity or activity.
Patent CA-2278973-A1 (CA)
Inventor: FLETT ROBIN M
IPC: H03H11/04
Filed: 1999-07-28
Abstract: The present invention provides a long time constant integrator circuit as part of an integrated circuit. The integrator circuit is fully integrated on chip with no external capacitive or resistive components for enhancing the circuit's time constant. It achieves a -3dB cut-off frequency of 1.6Hz. The circuit is realisable on a very small area of silicon being formed by a bipolar process using npn transistors, resistive and capacitive elements. The integrator circuit comprises a transconductance stage as an input to an operational amplifier. The circuit design is fully differential and employs realisable resistors and capacitors.
Patent CA-2281737-A1 (CA)
Inventor: ROBILLARD JEAN G
IPC: E04G1/20
Filed: 1999-09-09
Abstract: Disclosed is a self-raising platform assembly that is designed to be erected close to a building wall in order to be used by workmen to construct, repair or otherwise work an said wall. The platform assembly comprises at least one tower along which a platform may be moved up or down by means of a lifting mechanism incorporating at least one and preferably two caterpillar belts that are mounted on the platform so as to operatively engage a pair of corresponding racks mounted on the tower.
Patent CA-2282023-A1 (CA)
Title: Process and device for recovering and treating of aqueous solutions
Inventor: BILLINGTON PER
IPC: B01D3/00
Filed: 1998-03-05
Abstract: There is described a method for the treatment end processing of solutions of an organic fluid, water end one or more compounds of alkaline earth metals, alkali metals and metal ions, comprising the following steps: a) conducting a stream (5) consisting of organic fluid, water and one or more compounds of alkaline earth metals, alkali metals and metals ions to a salt reduction and crystallization unit (6), b) evaporating and optionally partially condensing the stream (5) and providing thereby a stream (9, 10) of evaporated water and organic solvent and a stream (8) of organic fluid and the compounds of alkaline earth metals, alkali metals and/or metal ions, c) conducting the steam (8) consisting substantially of organic fluid and the compounds of alkaline earth metals, alkali metals and/or metals ions to a salt reduction means (24), d) nucleating crystals of the compounds of alkaline earth metals, alkali metals and/or metal ions by means of depressurization and temperature increase, e) removing the portion of the precipitated crystals and/or particles from the organic fluid.  The method is particularly well suited for processing of solutions consisting of mono-, di, tri, or polyethyleneglycol or mixtures thereof. There is also described a means for carrying out the method.
Patent CA-2282541-A1 (CA)
Title: Handover and call setup in a mobile communication system
Inventor: VAARA TOMI
IPC: H04W36/26
Filed: 1998-02-13
Abstract: It is difficult for mobile communication networks, that provide special services tailored to individual mobile station subscribers, to direct the mobile station subscriber to an area offering this special service. The invention relates to a handover method and a call setup method in a mobile communication system which consists of base stations (BTS) and mobile stations (MS), and in which a mobile station subscriber-specific special cell list has been created for at least some of the mobile stations, the said list including the identifier for at least one cell that offers special service to the mobile station. It is characteristic for the handover method according to the invention that the cell to be assigned to the mobile station (MS) is selected on the basis of the measurement results and the special cell list, and the selected cell is set as the target cell of the handover for the mobile station. It is characteristic to the call setup method according to the invention that the cell to be assigned to the mobile station (MS) is selected on the basis of the measurement results and the special cell list, and the traffic channel for the mobile station (MS) is assigned from the base station of the selected cell.
Patent CA-2282575-A1 (CA)
Title: Process for preparing a nutritional supplement
Inventor: WEDDINGTON EUGENE M
IPC: A23K10/24
Filed: 1998-02-12
Abstract: A process for preparing a nutritional supplement includes the steps of mixing animal blood solids, hydrolized poultry feathers and animal offal to create a mixture, adding protease enzyme to the mixture (20), digesting the mixture with protease enzyme (28) and drying the digested mixture (38) in order to reduce the moisture content thereof down to 5-8 weight percent. During processing, the digested mixture is never exposed to temperatures above approximately 83 °C so that the blood and offal are not degraded or denatured and remain intact so as to provide full nutritional benefit.
Patent CA-2284563-A1 (CA)
Inventor: UNGER HEINZ-DIETER
IPC: A61C8/00
Filed: 1998-03-19
Abstract: The invention relates to a rotatory body (3, 203, 17), in particular part of an implant body (1, 101, 201, 301), that penetrates a jaw bone, and has a central internal channel (15, 25) which completely pierces the rotatory body (3, 203, 17) along its axial extension.
Patent CA-2286228-A1 (CA)
Inventor: SLAVIK WILLIAM H
IPC: H01H36/00
Filed: 1999-02-26
Abstract: An electrical switch (10) includes a housing (12) having walls (14) extending continuously around a recess (16). A switch actuator (22) is pivotally mounted in the housing (12) in the recess (16) and protected by the walls (14). First and second reed switches (30, 32) are mounted in the housing (10), and a magnet (34) is mounted to the switch actuator (22) and is pivotable between a first position, in which the magnet (34) activates the first reed switch (30), and a second position, in which the magnet (34) activates the second reed switch (32).
Patent CA-2287840-A1 (CA)
Title: Method for making and using a prepolymerized olefin polymerization catalyst
Inventor: PALACKAL SYRIAC JOSEPH
IPC: C08F4/02
Filed: 1997-05-22
Abstract: A catalyst is prepared by creating a catalyst solution by combining an aluminoxane with a group 4-6 metallocene having a substituent which has olefinic unsaturation in a suitable ligand to form a liquid catalyst, conducting prepolymerization of an olefin on the liquid catalyst, and separating the resulting solid metallocene-containing catalyst from the reaction mixture, wherein the prepolymerization is conducted below 15 ~C at a constant temperature and/or the resulting solid metallocene-containing catalyst is combined with a particulate polyethylene. Polymerization of olefins using the inventive solid catalyst is also disclosed.
Patent CA-2290031-A1 (CA)
Inventor: NOTEBORN MATHIEU HUBERTUS MARI
IPC: C12N11/16
Filed: 1999-12-06
Abstract: The invention relates to activation of apoptosis by means of interference with the function of snRNPs and hnRNP-like compounds.      Also the invention relates to anti-tumor therapies with compounds, which negatively interfere with snRNPs and hnRNP-like compounds leading to induction of apoptosis, resulting in the elimination of tumor cells.      Also the invention relates to therapies for diseases related to aberrant apoptosis induction, such as auto-immune diseases.
Patent CA-2292020-A1 (CA)
Title: Aliphatic thermoplastic polyurethanes, processes for their preparation and their use
Inventor: KAUFHOLD WOLFGANG
IPC: C08G18/08
Filed: 1999-12-10
Abstract: A thermoplastic composition comprising aliphatic polyurethane is disclosed. The composition is charactrized in having a post weathering yellow value lower than 20 and good hardness and softening temperature values both before and after weatering for 504 hours in accordance with ISO 4892.
Patent CA-2295097-A1 (CA)
Inventor: SPINELLI GIOVANNI
IPC: A01K97/02
Filed: 1998-06-23
Abstract: It is provided a device for big fish baiting, comprising means (1) for feeding baits; means (2) for supporting said feeding means and fastening them to a craft; means (10) for conveying said baits from the feeding means (1) into a water environment, wherein said conveying means are intended to create in said water environment an appeal wake for big fishes into the proximity of the craft sailing said water environment.