baber/WOPTO huggingface dataset:
Patent CA-2221318-A1 (CA)
Inventor: PAGRATIS NIKOS
IPC: C12Q1/68
Filed: 1996-05-30
Abstract: Methods are described for the identification and preparation of high-affinity nucleic acid ligands to TGF.beta., PDGF and hKGF. Included in the invention are specific RNA and ssDNA ligands to TGF.beta.1 and PDGF identified by the SELEX method. Also included in the invention are specific RNA ligands to hKGF identified by the SELEX method. Further included are RNA ligands that inhibit the interaction of TGF.beta.1 and hKGF with their receptors and DNA ligands that inhibit the interaction of PDGF with its receptor.
Patent CA-2224176-A1 (CA)
Inventor: ROBBINS PAUL D
IPC: A61K35/32
Filed: 1996-06-05
Abstract: The subject invention concerns a method of introducing at least one DNA  sequence expressing a protein or protein fragment which substantially alleviates articular cartilage defects. This methods involves in vitro culture of chondrocytes, transfection of the chondrocytes with a recombinant vector housing the DNA sequence to be expressed, and delivery of the transfected chondrocytes to the damaged cartilage region. This method can also be used in tandem with synovial cell delivery techniques of the present invention. This method is also useful as a model in animal studies regarding joint pathologies.
Patent CA-2225386-A1 (CA)
Inventor: IJ L HANNU
IPC: C05G3/40
Filed: 1996-06-20
Abstract: The invention relates to a stable, concentrated aqueous fertilizer suspension, which can be diluted with water to provide a working solution. The suspension contains 10 to 60 % by weight of water and 40 to 90 % by weight of a plant nutrient composition based on at least a calcium, and/or a magnesium and a phosphate ion, and the suspension comprises at least one plant nutrient containing water-insoluble solid particles with a particle size less than 50 .mu.m, the pH of the suspension being in the range of 0.5 to less than 2.
Patent CA-2227085-A1 (CA)
Title: Insulated modular injection nozzle system
Inventor: PURI RAJAN
IPC: B29C45/27
Filed: 1998-01-15
Abstract: A modular injection nozzle system for use with hot runner injection machines employs a thermal insulating element between the tip of the injection nozzle and a removable mold gate insert. This thermal insulating element limits the heat loss from the tip to the gate insert, assists in sealing the gate area and provides assistance in aligning the gate and the nozzle during assembly. The removable mold gate insert allows for eased servicing and assembling/dis-assembling of the injection nozzle system and has limited contact with the mold plate. In one embodiment, the removable gate insert is mounted to the nozzle via the insulating member, which is in the form of a sleeve with exterior threads which are complementary to interior threads on the gate insert. The sleeve can either be press-fit onto the nozzle or can have interior threads which are complementary to exterior threads on the nozzle. In either case, the sleeve can assist in the alignment of the components of the nozzle system. In another embodiment, the insulating element also includes a gap between the nozzle tip and the gate insert, the gap having a suitable insulating gas or vacuum therein to provide additional insulation. In another embodiment, the insulating element comprises a layer of insulating material on the nozzle tip and the gate insert can either be press fit with the layer or the layer can have exterior threads to engage complementary threads on the gate insert. In another embodiment, the insulating element is molded in place on the nozzle tip. In another embodiment, the insulating element is molded in place in the gate insert, and comprises interior threads which are complementary to exterior threads on the nozzle.
Patent CA-2227911-A1 (CA)
Title: Air-to-air heat exchanger core
Inventor: GRINBERGS PETER KARL
IPC: F28D9/00
Filed: 1998-01-27
Abstract: The present invention relates to a core assembly for use in an air-to-air heat exchanger. The core is comprised of a plurality of square plates. Each plate is comprised of a square planar central region; a first pair of opposed edge flanges bent in a first direction with respect to the central region to form approximately 90 degree angle with the central region; and a second pair of opposed edge flanges bent in a direction opposite the first direction with respect to the central region to form approximately 90 degree angle with the central region. The core is formed by the plurality of square plates that are positioned into a stack of parallel plates such that the opposed flanges of one of the plurality of plates is located in contact with and inside mating opposed flanges of a plate directly adjacent thereto, thereby forming a plurality of air passages between adjacent plates such that two perpendicular air pathways are formed in an interleaved orientation. A frame is provided in contact with a bottom plate in the stack and a top plate in the stack for holding the plurality of plates in position.
Patent CA-2227956-A1 (CA)
Inventor: LISTRO JOSEPH ANTHONY
IPC: A61K8/46
Filed: 1996-07-17
Abstract: L'invention concerne des compositions appropriées à l'administration topique d'une grande variété d'ingrédients actifs. Ces compositions sont particulièrement utiles pour le traitement d'affections telles que l'acné et les lésions cutanées qui l'accompagnent, des boutons, marques ou taches et autres imperfections de la peau. Lesdites compositions n'irritent pas la peau et en améliorent le bien-être. Elles peuvent se présenter sous la forme de produits qui restent appliqués sur la peau et aussi de produits que l'on rince ou que l'on essuie après utilisation.
Patent CA-2228342-A1 (CA)
Title: System bus control system in a multi-processor system
Inventor: SHIBATA YUJI
IPC: G06F15/167
Filed: 1991-03-04
Abstract: The first invention relates to a multi-processor system in which a bus arbiter permits an answer transfer request to utilize a bus utilization right with higher priority than a command transfer request, thereby increasing the processing efficiency of CPU boards.  The second invention relates to a multi-processor system utilizing a system bus of a time split transfer system in which a data width of its own unit is inserted into a command and an answer transmitted and received between the processors and transmitted as bus width information, thus making it possible to interconnect a unit, which processes data of an arbitrary data width, to the system bus.  In accordance with the third invention, local memories of a plurality of units connected to the system bus can be accessed via a bus interface of an input and output unit.
Patent CA-2228889-A1 (CA)
Inventor: SHERWOOD DAVID EDWARD JR
IPC: B01J21/04
Filed: 1996-08-22
Abstract: A process for hydroconverting a hydrocarbon feed containing components boiling above 1000 °F (538 °C), sulphur, metals and carbon residue into product containing decreased levels of components having a boiling point greater than 1000 °F (538 °C), decreased levels of sulphur, particularly decreased sulphur contents in the unconverted 1000 °F+ (538 °C+) boiling point products and reduced sediment, which comprises: contacting said hydrocarbon feed with hydrogen at isothermal hydroprocessing conditions in the presence of, as catalyst, a porous alumina support containing <= 0.5 wt.% of silica, no silicon containing components being intentionally added, and bearing 2.2-6 wt.% of a Group VIII metal oxide, 7-24 wt.% of a Group VIB metal oxide and 0.0-2.0 wt.% of a phosphorus oxide, said catalyst having a Total Surface Area of 195-230 m2/g, a Total Pore Volume (TPV) of 0.82-98 cc/g, and a Pore Diameter Distribution wherein 27.0-34.0 % of the TPV are macropores of diameter > 250 .ANG., 66.0-73.0 % of the TPV  are micropores of diameter 250 .ANG., 55-64.5 % of the Pore Volume in pores with diameters <=.50 .ANG. are micropores of diameter within ~ 25 .ANG. of a pore mode by volume of 110-130 .ANG., and < 0.05 cc/g of micropore volume are micropores with diameters < 80 .ANG..
Patent CA-2229764-A1 (CA)
Title: Sectors for rotary disc filters having convex, curved, radial side edges
Inventor: PETERSON JOHN G
IPC: B01D33/23
Filed: 1998-02-17
Abstract: A sector for a rotary disc filter has two elongate side channesl that have a generally U-shaped cross section. Each side channel defines an open trough that faces the interior of the sector. The side channels have smooth, convex shapes forming smooth, rounded side edges extending laterally along the opposite radial sides of the sector. Filter media is formed as an envelope having a shape corresponding to the sector. The envelope fits over the sector, with the filter media curving smoothly over the curved side edges of the sector. The envelope is formed by superposed layers of filter media, and the layers are secured together at mutually respective side edges thereof. The side edges are joined together by a mechanical clamp system or by a strip of polymeric material that is melted and infused into the side edges of the filter media. A clamp system on the sector bell attaches the truncated end of the filter media to the sector bell. Plow members on the radial rods of the disc filter to plow a path into the slurry being filtered to alleviate wear and tear on the leading edges of the sectors.      A relatively thick, curved bar at the perimeter of the sector has arcuate, flat side plates attached thereto, and the filter media is held in place between the flat side plates and the curved bar.
Patent CA-2230074-A1 (CA)
Title: Milieu dense bimodal pour la separation de fines particules dans un cyclone en milieu dense
Inventor: LASKOWSKI JANUSZ S
IPC: B03B5/44
Filed: 1996-08-28
Abstract: L'invention concerne un procédé de séparation pour fines particules en milieu dense bimodal (à deux constituants). On décrit un milieu dense qui comprend des particules ferromagnétiques ayant une plage de densité relative comprise environ entre 4 et 7, en suspension dans l'eau et caracterisées par une distribution bimodale de taille. Ce milieu offre une haute stabilité et des propriétés rhéologiques favorables. En utilisant un tel milieu dense à magnétite de type bimodal pour le nettoyage des fines de charbon dans un cyclone en milieu dense ou un séparateur dynamique en milieu dense, on obtient une efficacité de séparation optimale lorsque ledit milieu contient environ de 20 à 40 % de magnétite fine et environ de 60 à 80 % de magnétite brute, et lorsque le rapport de taille brute/fine de la magnétite se situe dans une plage comprise entre 5 et 10.
Patent CA-2231745-A1 (CA)
Title: In-vitro transcription processes for screening natural products and other chemical substances
Inventor: WINKLER IRVIN
IPC: C12Q1/68
Filed: 1998-03-11
Abstract: The invention relates to an in-vitro process for analyzing transcription of viral and cellular genes which can be automated and which is suitable for efficient and economical bulk screening with the aim of finding specific chemical lead structures which have a selective effect on gene activity. The process for the cell-free in-vitro transcription of a DNA template comprising a DNA sequence to be transcribed which is under the control of at least one gene-regulatory element comprises a) using, for the transcription, a concentrated and, if appropriate, purified extract from cell nuclei which, if appropriate, can be complemented, or partially or fully replaced, by transcription factors and/or cofactors, and at least one labeled nucleotide, b) if appropriate isolating and/or degrading the proteins in the reaction mixture after transcription, c) binding the labeled transcript to a solid matrix, d) removing the excess labeled nucleotides and e) determining the amount of labeled transcript.
Patent CA-2232107-A1 (CA)
Inventor: CHOQUETTE YVES
IPC: H01M4/13
Filed: 1998-03-06
Abstract: Dans un générateur au lithium rechargeable comportant entre autres une anode de lithium une cathode réductible aux ions lithium liée avec un polymère, ainsi qu'un électrolyte polymère, on introduit des ions potassium soit au niveau de la cathode, soit au niveau de l'électrolyte, ou des deux à la fois, de sorte que le potassium est distribué dans la cathode et dans l'électrolyte lorsque le générateur est à l'équilibre. On stabilise ainsi l es performances du générateur au cyclage, au niveau de l'énergie et de la puissance.
Patent CA-2233127-A1 (CA)
Title: Method and apparatus for separating composite member using fluid
Inventor: OHMI KAZUAKI
IPC: H01L21/00
Filed: 1998-03-25
Abstract: To separate a composite member consisting of a plurality of bonded members without destructing or damaging it, a fluid is jetted against the composite member from a nozzle to separate it into a plurality of members at a position different from a bonding position.
Patent CA-2236602-A1 (CA)
Inventor: YU WEIYUN
IPC: A61M25/09
Filed: 1996-11-11
Abstract: A method for positioning an intraluminal graft within a branching vessel in a patient's body is described. The method is particularly applicable to the appropriate positioning of a trouser graft so that it bridges an aneurism which extends from a single vessel, such as the aorta, into one or more divergent vessels, for example, an iliac artery. The method can comprise the steps of placing a first graft (10), that bifurcates in a pair of tubular sections (19a, 19b) into the pre-branching portion of a vessel (11) through one of the post-branching portions of the vessel (12, 13), positioning a second tubular graft (10b) into one of the post-branching portions (12) and connecting it to one of the tubular sections of the first graft (19a), and positioning a third tubular graft (10a) into the other of the post-branching portions (11) and connecting it to the other of the tubular sections of the first graft (19b).
Patent CA-2237127-A1 (CA)
Inventor: BEAUREGARD DIANE
IPC: A47D15/00
Filed: 1998-06-10
Abstract: Les sorties avec un bébé requièrent un grand nombre d'articles à transporter. La présente invention, La Nanny, a pour but de minimiser ce nombre d'objets. II s'agit d'un siège sécuritaire qui maintient l'enfant en position assise, sur tout type de chaise à dossier, un peu comme une chaise haute portative. La Nanny se glisse sur la hauteur du dossier d'une chaise; elle est munie d'un rabat où l'enfant sera déposé en position assise. Fabriqué de tissu flexible, le rabat sera remonté dans l'entre-jambe jusqu'à la taille et fixé à l'arrière du dossier par deux courroies de nylon ajustables, bouclées par une attache sécuritaire. Le dos du siège présente deux fiches à Velcro pour les couches et le biberon, en plus d'une grande poche avec fermeture éclair pouvant contenir divers articles de bébé. Si plié différemment, grâce aux côtés de Velcro, le sac pourra se transformer en sac à couches ou encore, grâce aux oeillets de tissu, il pourra se porter en sac à dos. Le même sac, mis à plat, deviendra d'un côté le piqué pour changer la couche et de l'autre, un sac de couchage pour le dodo du lobé. Une simple façon de replier le sac pourra le ramener à l'état de petite pochette de 25cm X 32cm pouvant se porter à la taille, sur l'épaule ou autre.
Patent CA-2239044-A1 (CA)
Inventor: EISEN NORBERT
IPC: C08G18/32
Filed: 1996-12-02
Abstract: The invention relates to the preparation of rigid foamed materials containing urethane groups using a mixture of blowing agents of 5 to 50 parts by weight of C3- and/or C4-alkanes and 50 to 95 parts by weight of cyclopentane. The invention also relates to the use of the rigid foamed materials thus prepared as composite elements or for filling hollow spaces during the construction of refrigerators.
Patent CA-2239286-A1 (CA)
Title: Hybrid boat and underwater watercraft
Inventor: KOHNEN WILLIAM
IPC: B63G8/16
Filed: 1996-12-05
Abstract: A hybrid boat and underwater craft and method for operating an underwater craft having positive buoyancy, a three-point stabilization system and single-point vertical thruster (30) and a system for enhanced buoyancy at the surface.
Patent CA-2240573-A1 (CA)
Title: Method for testing a cell sample
Inventor: SHINE THOMAS ADAM
IPC: G01N15/12
Filed: 1996-12-27
Abstract: In this invention, a cell parameter, for example cell volume, is determined by subjecting one or more aliquots of a sample cell suspension to one or more alterations of at least one parameter of the cell environment to identify a point at which the cells achieve a particular shape to obtain a sample specific shape compensation factor.  Preferably, the environmental parameter change is a reduction in osmolality.
Patent CA-2243573-A1 (CA)
Title: Free radical polymerizable compositions including para-halogenated aniline derivatives
Inventor: RIGHETTINI ROBIN F
IPC: C09J201/00
Filed: 1997-03-20
Abstract: The present invention provides adhesive compositions which include free radical polymerizable compounds and a redox catalyst system to accelerate polymerization thereof. The redox catalyst includes an aniline derivative substituted in the para position by halogen as an accelerator. The use of parahalogenated aniline derivatives as an accelerator in the cure of free radical polymerizable compounds results in good bond strength and greatly improved surface cure of the adhesive composition.
Patent CA-2246013-A1 (CA)
Title: Epdm walkway pad compositions and uses therefor
Inventor: ROSE JERRY C
IPC: E04D5/12
Filed: 1998-08-21
Abstract: A walkway pad composition comprises 100 parts by weight of an ethylene-propylene-diene terpolymer; from about 60 to 700 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof, per 100 parts of the terpolymer; from about 40 to 175 parts by weight of a processing material and mixtures thereof, per 100 parts of the terpolymer; and from about 2 to 10 parts by weight of a cure package, per 100 parts of the EPDM terpolymer, the composition being devoid of any additional polymeric components. The 100 percent EPDM walkway pad composition has better low temperature properties and superior weathering resistance, and heat aging resistance compared to other walkway pad compositions which may include other polymeric components such as natural rubber, synthetic polyisoprene, styrene-butadiene rubber (SBR), polybutadiene, and butyl (IR) rubber. Up to about 25 parts by weight of ethylene-propylene copolymers may be substituted for the EPDM terpolymers.
Patent CA-2247608-A1 (CA)
Inventor: BRINGUIER ANNE G
IPC: G02B6/44
Filed: 1998-09-17
Abstract: A fiber optic cable (10) includes a conventional optical fiber ribbon stack (12) with optical fiber ribbons having optical fibers.  Ribbon stack (12) is disposed in a water blocking material (13) which, in turn, is surrounded by a core tube (14).  Core tube (14) is surrounded by an outer jacket (15).  The space between core tube (14) and jacket (15) includes fiber optic cable components (20,30,40).  Cable component (20) provides strength and flame inhibiting capabilities to fiber optic cable (10) and may include a water blocking capability.  Cable component (30) comprises a flame inhibiting capability, and may include a water blocking capability.  Cable component (40) provides anti-buckling and flame inhibiting capabilities to fiber optic cable (10) and may include a water blocking capability.  Fiber optic cable (10) meets flame and water blocking requirements, is manufactured  at a low unit cost, and is easy to route through cable passageways.
Patent CA-2248422-A1 (CA)
Title: Formulated copper algaecides
Inventor: PUETZ JOHN D
IPC: A01N55/02
Filed: 1998-09-22
Abstract: A composition comprising a terpene, an emulsifier, and a copper complex is provided, along with methods for its use as an algaecide. The composition is effective when used as an algaecide to treat algae growth in aquatic environments, even though it contains much less terpene than other commonly-used algaecides and can be used without a conventional surfactant. The composition is also less toxic and less flammable than other commonly-used algaecides.
Patent CA-2248843-A1 (CA)
Inventor: MEYER HANS
IPC: A23K1/16
Filed: 1997-03-11
Abstract: The invention relates to a process for extraction of a growth factor complex and is characterised in that water is added to natural and growth-factor containing material, the pH value is set by the addition of acid at 2.5 to 3.2, and the resultant product is separated off. The growth factor complex is produced from the mother liquor by adding an organic solvent which can be mixed with water, is separated off from the liquid phase and dried, and the resultant powder is optionally dialysed.
Patent CA-2251167-A1 (CA)
Inventor: GREANEY MARK ALAN
IPC: C10G32/02
Filed: 1998-11-12
Abstract: The present invention provides for a process for electrochemically demetallating petroleum streams by contacting a hydrocarbon-soluble metals containing petroleum stream and an aqueous electrolysis medium with a low hydrogen overpotential metal cathode at an electric current and pH sufficient todemetallate the petroleum stream. The cathode voltage is from 0 V to -3.0 V vs. SCE at a pH of from 7 to 14. The cathode material typically is stainless steel, chromium, copper and nickel.
Patent CA-2253174-A1 (CA)
Title: Method and apparatus for processing pan-shaped wood members
Inventor: ARASMITH STANLEY DALE
IPC: B27L11/02
Filed: 1998-11-10
Abstract: A method and apparatus for reducing the size of wood members, particularly pan-shaped wood members known in the industry as "lilypads", such that the orientation of the fibers of the lilypads are encouraged to be substantially perpendicular to the longitudinal and rotation axis of a cutting drum having a plurality of cutting members extending from its circumferential surface.
Patent CA-2255045-A1 (CA)
Title: Semi-crystalline, semi-aromatic terpolymers with superior post-molding shrinkage and mechanical performance
Inventor: LEBOEUF CHRISTIAN
IPC: C08G69/26
Filed: 1997-05-16
Abstract: This invention relates to high temperature, semi-crystalline, semi-aromatic nylon terpolymers with improved shrinkage resistance, made from terephthalic acid (TA), hexamethylene diamine (HMD) and/or 2-methyl pentamethylene diamine (2-MPMD) and another aliphatic dicarboxylic acid as monomers. These polymers display superior % TD  (Transverse Direction) annealing shrinkage, as well as very good balance of mechanical performance as high temperature nylons.
Patent CA-2255280-A1 (CA)
Inventor: CHRISTMAS DAVID A G
IPC: E21B43/12
Filed: 1998-12-03
Abstract: A wellbore fluid recovery system for recovering fluid from a wellbore that has at least one lateral wellbore extending out therefrom. The system includes a first electric submergible pumping system for recovering fluids from a first zone of a wellbore, and a second electric submergible pumping system for recovering fluids from a second zone of the wellbore, such as from a lateral wellbore. Automated control mechanisms are used for independently regulating fluid flow from the first and the second electric submergible pumping systems. Such control mechanisms include automated downhole adjustable valves and variable speed electric motor controllers.
Patent CA-2257145-A1 (CA)
Inventor: FRANKLIN JAMES BRUCE
IPC: F21S11/00
Filed: 1997-06-17
Abstract: An optical conduit (53) for transmitting and releasing luminescent radiation (61, 62, 63) emitted from a luminescent concentrator (51), the luminescent concentrator (51) and optical conduit (53) comprising an optical system which is adapted to release to an area to be illuminated the luminescent radiation which is otherwise trapped in the optical system by total internal reflection. The optical conduit (53) includes a luminaire (57), such as a plurality of scattering regions for scattering trapped light so that the scattered light acquires the angle of incidence required to be released from the conduit (53). The scattering regions may be provided by shape irregularities on the surface of the conduit (53) or inhomogeneities within the conduit (53). The conduit (53) may consist of flexible overlaid light guides (65a, 65b and 65c) and a luminaire fitting (55) optically coupled thereto.