baber/WOPTO huggingface dataset:
Patent CA-2166534-A1 (CA)
Inventor: PATNODE GREGG A
IPC: C09J7/02
Filed: 1994-05-26
Abstract: A pressure sensitive adhesive which is dispersible at an alkaline pH but not at an acidic or a neutral pH is disclosed. The adhesive is essentially free from plasticizers (i.e., it contains less than 0.1 part of plasticizer per part of polymer). The polymer is formed from A, B and C monomers.  The A monomer is hydrophobic and is an acrylic or methacrylic ester of a non-tertiary C2-C14 alcohol. It comprises from 50 to 80 weight % of the polymer. The B monomer contains .beta.-carboxyethyl acrylate (BCEA) or a salt thereof or a mixture of BCEA or a salt thereof with a vinyl carboxylic acid or a salt thereof. The polymer contains from 10 to 30 weight % of B monomer.  The acid groups of the polymer have been neutralized with from 0.5 to 2 equivalents of an alkali metal hydroxide. The C monomer is an X-Y-Z macromer. X is copolymerizable with the A and B monomers.  Y is a divalent linking group. Z is a water dispersible group that contains at least two units which are essentially unreactive under free radical conditions used to form the polymer. C comprises from 10 to 30 weight % of the polymer.
Patent CA-2166643-A1 (CA)
Title: Staking system for securing blow molded figures
Inventor: PROTZ WILLIAM F JR
IPC: F16B15/00
Filed: 1996-01-05
Abstract: A staking system which may be combined with a blow molded figure having a flange at the base thereof. The staking system includes at least two stakes each having a first elongated portion terminating in a first bend leading to a second portion and a second bend leading to a third portion, and at least one additional stake having an engagement portion at one end thereof for contacting the outside of said blow molded figure. At least two stakes driven into the ground have either the second portions or third portions thereof in contact with the flange on the blow molded figure. The additional stake has the engagement portion thereof in contact with the blow molded figure to provide at least three angularly separated points of contact between the blow molded figure and the stakes. The angle defined by the first bend is less than about 60 and the angle defined by the second bend is less than about 30.
Patent CA-2168307-A1 (CA)
Title: Pourable detergent concentrates which maintain or increase in viscosity after dilution with water
Inventor: CAO HOAI-CHAU
IPC: C11D17/00
Filed: 1996-01-29
Abstract: Aqueous detergent concentrates containing a mixture of two or more surfactants having a differing resistance to electrolytic salting out in the form of micellar solutions and having pourable viscosities are converted into lamellar solutions upon dilution with water where the dispersion contains a viscosity promoting electrolyte present at a narrow range of concentration. Transformation from the micellar phase to the lamellar phase produces an increase in viscosity such that the diluted concentrate has a viscosity equal to or higher than the viscosity of the original concentrate.
Patent CA-2168464-A1 (CA)
Title: Low temperature non-caustic oven cleaning composition
Inventor: GRIEPENBURG RONALD G
IPC: C11D3/43
Filed: 1994-06-29
Abstract: A non-caustic oven cleaner composition comprises from 1 % to 12 % monoethanolamine, from 2 % to 20 % diethylene glycol monobutyl ether and from 1 to 10 % of sodium or potassium carbonate.  The composition, preferably in an aerosol formulation having from 2 % to 10 % propellent, is effective at ambient room temperatures. The preferred carbonate is potassium carbonate.  Up to 60 % of the monoethanolamine can be replaced with an equivalent amount of diethanolamine.
Patent CA-2170710-A1 (CA)
Inventor: BUZETZKI EDUARD
IPC: A62D101/26
Filed: 1996-02-29
Abstract: To dispose of hazardous or toxic organic  compounds which in addition to the elements of carbon, hydrogen and oxygen comprise halogen,  phosphorus,  sulfur and/or metal elements in atomic bond it is proposed to subject the same to ionization and immediately  thereafter  to  electrodialysis.  The  ionic  end products  of  the  reaction  can be  handled easily and  can be supplied without any problems to further use or disposal at landfills or by incineration.          The ionization occurs under the influence of ionizing radiation.      The method of the present invention is particularly suitable for disposing of halogen-containing aromatic compounds such as various pesticides.
Patent CA-2172070-A1 (CA)
Title: Protective coating
Inventor: FOSTER JOHN
IPC: F02C7/00
Filed: 1995-07-24
Abstract: A method of producing a coating on a substrate comprising aluminising, chromising or siliconising the substrate and depositing on the treated substrate by electrolytic or electroless deposition a metal matrix M1 from a bath containing particles of CrAlM2 so as to co-deposit the particles with the matrix, M1 being Ni or Co or Fe or two or all of these elements and M2 being Y, Si, Ti, Hf, Ta, Nb, Mn, Pt, a rare earth element or two or more of these elements. Preferably, the method includes platinum aluminising of the substrate. Heat treatments may be incorporated before and after code deposition of the M1CrAlM2.
Patent CA-2176415-A1 (CA)
Title: Benzo-fused azepinone and piperidinone compounds useful in the inhibition of ace and nep
Inventor: ROBL JEFFREY A
IPC: C07K5/078
Filed: 1996-05-13
Abstract: Compounds having the following formula I, and pharmaceutically acceptable salts thereof, including dual inhibitors of ACE and NEP and selective ACE inhibitors: (I) wherein: Y1 and Y are each independently hydrogen, alkyl, aryl, halogen, or alkoxy; X is O or S(O) t; , , A is , or ; t is zero, one or two; m and n are independently zero or one; and wherein R, R5, R5a, R5b, R6, R7, R11, q and r are defined herein.
Patent CA-2177777-A1 (CA)
Title: Squirrel-cage rotor for an anynchronous machine
Inventor: HELFER PETER
IPC: H02K5/24
Filed: 1996-05-30
Abstract: In a squirrel-cage rotor for an asynchronous machine, having a laminated core (2) which is mounted on the shaft (1), held together at both ends by press rings and is intended for accommodating the cage bars (3), the latter are respectively permanently connected to a short-circuiting ring (4) outside the laminated core (2). Each short-circuiting ring (4) is supported in the radial direction by a support ring (6) fixed on the shaft.            In order to couple the cage head to the rotor body over the entire speed range of the machine for the purpose of suppressing natural vibrations, the two press rings are axially spaced from the laminated core (2) and simultaneously form the support ring (6) for the short-circuiting ring (4). In order to ensure the ventilation of the winding overhang, there are provided between the end face of the laminated core (2) and the support ring (6) spacer webs (7) which are preferably constructed in one piece with the support ring (6).
Patent CA-2179832-A1 (CA)
Inventor: MCBRIDE RODGER
IPC: A47D13/04
Filed: 1996-06-25
Abstract: An envelope of straps make up a harness means to support a toddler.  Two shoulder straps with looped ends are adapted to be held by an adult above the toddler. The straps are attached to a T-shaped sheet of elastomer fabric; the ends of the "T" overlap about the stomach area of the toddler and are held fast there by "VELCRO" (trade mark) fasteners. The "leg" of the "T" surrounds the crotch area of the toddler and fastens up to the overlapping part of the 'T" and can be held there by another set of "VELCRO" fasteners by a snug support for the toddler.
Patent CA-2179934-A1 (CA)
Title: Tungsten Enhanced Liner for a Shaped Charge
Inventor: REESE JAMES W
IPC: F42B1/032
Filed: 1996-06-26
Abstract: A liner for a shaped charge formed from a mixture of powdered tungsten and powdered metal binder. The liner is formed by compression of the mixture into a substantially conically shaped solid body. In a preferred embodiment of the invention, the mixture comprises approximately 80 percent by weight of tungsten and 20 percent of the powdered metal binder. In a specific embodiment of the invention, graphite powder is intermixed with the powdered metal binder and tungsten to act as a lubricant. The powdered metal binder preferably comprises a malleable, ductile metal such as lead, bismuth, tin, zinc, silver, antimony, cobalt, nickel or uranium.
Patent CA-2180769-A1 (CA)
Title: Method and apparatus for spinning a metal sheet
Inventor: MASSEE JOHAN
IPC: B21D22/16
Filed: 1996-07-09
Abstract: To spin a metal sheet around a chuck for forming a product, in a teaching phase involving force control, a product is formed on the chuck by rotating the chuck about the axis of rotation and by moving a forming roller one or several times alongside the chuck with a pre-determined pressure force thereby spinning the intermediate metal sheet. In the teaching phase, measuring data corresponding to the movement of the forming roller during spinning is fixed in a memory of a control unit, and in the production phase the forming roller is controlled with the aid of these measuring data. The control unit determines the position values of the forming roller in axial direction and in transverse direction relative to the chuck from the data fixed in the teaching phase, and the control unit controls the forming roller in the production phase at least during a part of the spinning movement by means of the position values determined in this manner for spinning the metal sheet into the desired product.
Patent CA-2181143-A1 (CA)
Inventor: SAKAI MASAKI
IPC: G05F1/46
Filed: 1995-01-13
Abstract: La sortie de potentiel positif d'une source de tension (1) est connectée au côté de potentiel positif d'un premier circuit (10) par une borne (6) tandis que la sortie de terre (potentiel négatif) de ladite source (1) l'est à la terre (potentiel négatif) dudit circuit (10) par une borne (8). De plus, la sortie de potentiel positif de la source (1) est connectée au côté de potentiel positif d'un second circuit (11) par une borne (7) après que la sortie ait été abaissée d'une tension prescrite V à l'aide d'une diode d'arrêt Schottky (2) tandis que la sortie de terre (potentiel négatif) de ladite source (1) l'est à la terre (potential négatif) dudit circuit (11) par une borne (9) après que la sortie ait été élevée d'une tension prescrite V à l'aide d'une diode d'arrêt Schottky (4). On obtient ainsi un circuit fournisseur de tension d'alimentation empêchant les verrouillages à l'état passant et présentant une consommation et des interférences électromagnétiques réduites à des niveaux faibles.
Patent CA-2181989-A1 (CA)
Inventor: TRELOAR PAUL HOWARD
IPC: G01N27/333
Filed: 1995-01-25
Abstract: Dispositif de détection (1) servant à détecter un constituant prédéterminé présent dans un spécimen de liquide (6) et à produire une sortie représentant ledit constituant. Ce dispositif (1) comprend une membrane à perméabilité sélective (2) incorporant une espèce organique chargée. La membrane (2) est au moins partiellement imperméable à des espèces chargées pratiquement non lipophiles pouvant se trouver dans le spécimen. Le détecteur (1) comprend, de plus, un ensemble d'électrodes (3, 4) en contact étroit avec la membrane (2) mais non exposé au côté de ladite membrane tourné vers le spécimen de liquide (6).
Patent CA-2182588-A1 (CA)
Title: Winged biliary stent
Inventor: PASRICHA PANKAJ J
IPC: A61F2/04
Filed: 1995-01-31
Abstract: A stent, for example, for maintaining the patency of a duct such as a biliary duct, is provided that includes a plurality of radially extending wings. The wings project from a core which has guide wire or wire stylet lumen. Each of the wings preferably include a plurality of minute, longitudinally extending grooves for bile flow even in the event of tumor ingrowth. The core itself is preformed into a helical configuration.
Patent CA-2182726-A1 (CA)
Title: Dispositif de protection des tissus mous
Inventor: LABARDE BERNARD
IPC: A61C1/16
Filed: 1996-08-05
Abstract: L'invention concerne un dispositif de protection des tissus mous destiné à être monté sur une tête de fraisage dentaire. Conformément à l'invention, le dispositif de protection comporte un support de fixation réalisé sous la forme d'un anneau massif ouvert en matériau suffisamment élastique pour permettre une mise en place frontale à la façon d'un clip. Une palette de protection est associée à l'anneau massif ouvert, ladite palette présentant un pied conformé pour venir se loger dans une gorge circonférentielle dudit anneau en y étant retenu, tout en pouvant s'y déplacer circonférentiellement pour modifier la position angulaire de ladite palette par rapport audit support de fixation.
Patent CA-2184488-A1 (CA)
Inventor: KAWAGUCHI MASAHIRO
IPC: F04B27/18
Filed: 1995-11-17
Abstract: Une valve de commutation (32) à solénoïde ouvre et ferme un canal sous pression (31). Quand le canal sous pression (31) est ouvert, l'inclinaison d'une plaque oscillante (15) sur un arbre rotatif (9) diminue vers l'angle minimum et la plaque oscillante (15) pousse alors un cylindre de transmission (28) et un élément de blocage (21) contre les forces d'un ressort (24) pour ouvrir un canal d'aspiration. Quand la plaque oscillante atteint l'angle minimum, l'élément (21) vient en contact avec une surface de positionnement (27) et interrompt la communication entre le passage d'entrée (26) et une chambre d'entrée (3a), en arrêtant ainsi la circulation du milieu de refroidissement dans un circuit réfrigérant externe (35). Le circuit de commande (42) de la circulation du milieu réfrigérant excite la valve de commutation (32) à solénoïde pendant une durée prédéterminée à partir d'un certain point de mise en service pour ouvrir le canal de pression quand une source de courant de commande (14) est mise en service.
Patent CA-2186203-A1 (CA)
Inventor: MASIKEWICH JAMES DARRELL
IPC: E21B43/25
Filed: 1996-09-23
Abstract: A method of reducing formation damage when drilling for oil and gas.  Firstly, determining initial water, hydrocarbon and gas saturation in the porous formation under consideration. Secondly, determining a preferential wettability of the porous formation. Thirdly, determining potential damaging effects due to aqueous phase trapping as a result of increasing water saturation in the porous formation.  Fourthly, determining an alcohol type and concentration that will reduce severity of aqueous phase trapping.  Fifthly, incorporating the alcohol type and concentration into a drilling fluid.   The alcohol concentration will not less than 1% by weight of the drilling fluid.   Sixthly, pumping the drilling fluid containing the alcohol down a drilling string to a drill bit during drilling operations.   The described method reduces invasive damage caused by drilling fluid entering the formation.
Patent CA-2186450-A1 (CA)
Title: Analog weighted binary absolute position encoder
Inventor: SITTLER FRED C
IPC: G01D5/16
Filed: 1995-04-27
Abstract: A magnet (16) mounted on a moving stem (12) or rotary member of a valve generates magnetic flux over part of a stationary member (14) of the valve which has a uniquely patterned set of magnetoresistive sense resistors (RSIG0RSIG4) and three reference resistors (130, 134, 148) disposed thereon. The distance between two adjacent patterns can be equally spaced, or can be compressed for valves with non-linear characteristics in order to achieve increased resolution over a specific portion of the valve travel. Other embodiments can use a light source, beta radiation or neutron radiation as the source of flux, the pattern for each embodiment's sensor having some material responsive and some unresponsive to the flux. The sensor (18) can provide feedback representative of position in a valve positioner, or functions as the position sensor in a position transmitter.
Patent CA-2187851-A1 (CA)
Title: Expansion joint cap
Inventor: CORRIE DAWN
IPC: E04F15/02
Filed: 1996-10-15
Abstract: A unitary resilient expansion joint insert member is provided for insertion into the expansion joint between adjacent concrete floor slabs. Such member is of substantially-constant transverse cross-section for filling an expansion joint gap which is formed between adjacent concrete flooring slabs. The insert member consists essentially of a cap portion having a convexly curved upper surface and a concavely curved lower surface.  The lower surface of the cap portion forms a substantially-planar surface, which is generally parallel, and adjacent, to the surface of the adjacent concrete slabs, when the insert member is arranged in the expansion joint. A projection portion which is integral with the cap portion extends downwardly from the lower surface of the cap portion to a lower end.  The projection member consists of parallel, planar opposed walls extending perpendicularly to the lower surface of the cap and an anchor portion having a pair of horizontal planar surfaces. Each horizontal surface extends perpendicularly to and in opposite directions from, the walls, to respective outer edges. The anchor portion also has planar angle surfaces extending respectively from the outer edges of the horizontal surfaces to a common point at the lower end of the projection members. The walls and the anchor portion have the shape of an arrow. The resilience of the cap portion provides a slight upward force on the projection member to exert a positive, engaging force that tends to lock the projection member in the gap.
Patent CA-2189320-A1 (CA)
Title: Multilayer fluid conduits
Inventor: AUVIL ANDREW L
IPC: B29C48/09
Filed: 1996-10-31
Abstract: Multilayer fluid conduits are formed by adhering to a tubular outer surface of a metal pipe, a thermoplastic outer layer. The outer layer permits ends of the multilayer conduit to be joined together in leak-proof fluid conduit systems simply by adhering the conduit ends with compatible thermoplastic fittings. For fire protection systems, the preferred metal is steel, the preferred thermoplastic is CPVC and the preferred adhesive is heat activated. The adhesive coated metal pipe is preheated and the CPVC is extruded onto the outer surface of the heated metal pipe. Through the use of fire resistive CPVC, the multilayer conduit systems of the present invention can be installed in more severe fire threat areas than can existing, all plastic piping, including all CPVC piping systems. The conduit is assembled into systems on site simply by cutting and direct bonding with ordinary, all plastic fittings using appropriate bonding agents such as solvent based adhesives. CPVC fittings are preferred for fire protection systems.
Patent CA-2189838-A1 (CA)
Title: Freight Brake Control for Uniform Car Deceleration
Inventor: HART JAMES E
IPC: B60T8/24
Filed: 1996-11-07
Abstract: A railway freight brake system for operating vehicles in a train wherein each vehicle responds in braking situations to provide a generally uniform net braking ratio on all cars in the train. Embodiments include vehicles receiving a brake signal and utilizing either a received train net braking ratio or utilizing a stored on-board train net braking ratio to control pneumatic equipment on-board the vehicle to produce brake forces on the vehicle generally corresponding to the net braking ratio of the train. Some embodiments use a common train line control to communicate both train net braking ratio and brake signals to the individual vehicle. Individual vehicles can receive periodic or initial train net brake ratio values.
Patent CA-2190790-A1 (CA)
Title: Method and apparatus for optimization database queries involving aggregation predicates
Inventor: LEVY ALON YITZCHAK
IPC: G06F17/30
Filed: 1996-11-20
Abstract: A method and apparatus for optimizing a query involving aggregation.  Aggregation predicates are represented by a constraint language through which relationships involving aggregation predicates can be shown.  As a result, new predicates can be inferred from an initial set of aggregation predicates and optimization techniques which involve inferring new predicates can be applied.  It is also shown how to restrict the inferences involving aggregation predicates to only those predicates which will lead to new predicates which are relevant to query optimization.  In general, the technique is not limited to query optimization, but may be applied to various applications involving the manipulation of aggregation predicates.
Patent CA-2191443-A1 (CA)
Title: Synchronized dual thread connector
Inventor: SIMMONS JOHN M
IPC: F16L55/11
Filed: 1995-01-06
Abstract: A screw-threaded connection incorporates dual syn-chronized threads (14,16, 18, 20), that is, one connection element has a set of external male threads (14) that mates with a corresponding set of internal female threads (16) on the mating connection element, in customary fashion. The first connection element additionally includes a second set of internal female threads (18) synchronized with the first set such that the leads of both sets of threads are the same. This second set of internal female threads (18) mates with a corresponding set of external male threads (20) on the mat-ing connection element. Of course, the two sets of threads on the mating connection element are synchronized such that their leads are the same, and, of course, the same as first sets of mating dual synchronized threads. This dual synchronized thread connection has application to any fluid connector and particularly to fluid connectors in wide-variant temperature deviation, high pressure, and/or mechanical environments,
Patent CA-2192127-A1 (CA)
Title: Toe splint for an outer toe
Inventor: LOCKHART ROBERT D
IPC: A61F5/01
Filed: 1996-12-05
Abstract: The invention relates to a toe splint for an outer toe, having a rear holding part, which is to be placed against the  metatarsus,  and  a  supporting  part,  which  is integrally connected thereto and is to be placed upon the toe to be supported. The holding part and the supporting part each have a side portion to be placed against the outer edge of the foot or toe. The improvement according to the invention consists in the fact that the side portions are continuously joined in the manner of a splint.
Patent CA-2195948-A1 (CA)
Title: Composite polyester material having a lubricous surface
Inventor: CHENG TAI C
IPC: A61L29/14
Filed: 1995-07-17
Abstract: A low friction intravascular catheter component formed of a polyester matrix having incorporated therein a finely divided lubricous particulate which is preferably one or more suitable lubricous particulate selected from the group consisting of graphite, molybdenum disulfide, TiC, MoC, graphite difluoride, and fluoropolymers. The polyester is preferably a copolymer with a predominant amount of polybutylene terephthalate and lesser amounts of components such as polytetramethylene ether glycol which has been esterified with dimethyl terephthalate, e.g. HYTREL. Typical components made of this low-friction material include the inner or outer tubular members of fixed-wire and over-the-wire dilatation catheters. A polysiloxane fluid may be incorporated within the matrix along with the lubricous particulate matter.
Patent CA-2201022-A1 (CA)
Inventor: SCHENKEY CHRIS LEE
IPC: A47K13/10
Filed: 1997-03-26
Abstract: The name of my invention is the Ex-Germomatic It is to make the toilet seat lift up by stepping on the pedal and to go back down when you take your foot off of the pedal.  The good thing about my invention is that the male does not have to bend over and get germs on his hands by lifting the toilet seat manually.  There are a lot of germs on the toilet seat from human waste splashing underneath the bottom of the toilet seat, and the male will never leave the toilet seat up because it will automaticly fall back down when you step off, without making any noise because the toilet seat has rubber ends on the bottom.  Another good thing about my invention is that the male will always have both hands free without lifting the seat up which is also good for anyone if they have to dump something out.