baber/WOPTO huggingface dataset:
Patent CA-2139642-A1 (CA)
Title: Recovery of metal values from process residues
Inventor: HARD ROBERT A
IPC: C01G33/00
Filed: 1993-07-09
Abstract: A process for recovering metal (17) and acid values (48) from a source material (22) containing metallic fluorides comprises digest-ing (10) the source material in sulfuric acid (20) to form a slurry, se-parating (12) a fluoride containing solid phase (39) and a metal con-taining first liquid phase (26). The solid phase is subjected to pyro-hydrolysis (14), sulfuric (40) and hydrofluoric acids (42) are rec-overed, and the first liquid phase is processed to recover the metal values by solvent extraction (16) or ion exchanges (18). The tantalum values are extracted from the first liquid aqueous phase by a water immiscible organic extractant such as methylisobutyl ketone to form a first liquid organic phase containing tantalum and a second liquid aqueous phase. The tantalum is stripped from the first organic phase using water (33). The process includes the additional steps of heating the separated solid phase from about ambient temperature to an ele-vated temperature in the presence of water vapor to evolve sulfuric acid (44) and render the gangue chemically inert (52). When the source material contains uranium the digestion step reduces the amount of gangue present in the radioactive source. The process can include the additional steps of removing uranium (34) from the sec-ond liquid aqueous phase by either an ion exchange resin or by sol-vent extraction using a water immiscible organic extractant to yield a uranium depleted aqueous phase (50) which can be treated with an aqueous solution of calcium oxide (66). Sulfuric acid and the organic extractant for extracting uranium can be recycled if desired (20).
Patent CA-2148197-A1 (CA)
Inventor: JELINSKI GLENN D
IPC: E21B23/00
Filed: 1995-04-28
Abstract: A retrievable production packer is conditioned for initial wireline installation in a well utilizing an adapter comprising an outer sleeve and an inner rod connected to a mandrel carrying the slip assembly of the packer.  The packer is frangibly supported in an initial transport condition for being set by means of a wireline setting device.  A flow control device, such as a blanking plug, may be seated in the packer mandrel at the very top of the packer while being lowered into position and set with a wireline setting device.  Thereafter, the tubing string may be connected to the packer downhole to release the packer and retrieve it from the well.
Patent CA-2148238-A1 (CA)
Title: Catalytic exhaust gas purifier and catalytic method of purifying exhaust gas
Inventor: AITTA EERO
IPC: F01N13/02
Filed: 1993-10-29
Abstract: Abstract The invention relates to an exhaust gas purifier and a catalytic method of purifying exhaust gas, in which exhaust gas led into a combustion chamber (5) of the exhaust gas purifier,  the exhaust gas is brought to centrifugal rotational motion,  by which the exhaust gas flow is divided into a particle flow (9) and an actual gas flow (10). The particle flow (9) separated from the actual gas flow is retarded in relation to the actual gas flow (10). The direction of propaga-tion of the particle flow is turned to be essentially opposite and the particle flow is rejoined to the actual gas flow and the rejoined exhaust gas flow is directed through a catalyst element (6). (Figure 1)
Patent CA-2149824-A1 (CA)
Title: Flexible bus routing structure
Inventor: BORCHEW HOWARD J
IPC: G06F3/00
Filed: 1995-05-19
Abstract: A modular bus routing system incorporates segments of a plurality of parallel buses in a substrate on which device connectors are strategically located.  Each end of each bus segment is coupled to a connector mounted on the substrate and interconnection between bus segments on different substrates is afforded by a flexible cable containing bus conductors of controlIed length and electrical characteristics.  A plurality of personality cards provide several different types of bus segment interconnection so that different segments can be terminated, or jumpered to other segments on the substrate.  By selecting different personality cards, the plurality of bus segments on a given substrate can be configured as a single serially connected bus, two, four or eight buses. The system affords wide flexibility for computer systems using host initiators and mass storage devices to provide a highly configurable computer system using such elements.
Patent CA-2152830-A1 (CA)
Title: Apparatus and method for sectional pulp introduction to a papermaking machine headbox
Inventor: MEINECKE ALBRECHT
IPC: D21F1/08
Filed: 1995-06-28
Abstract: A  device  for  the  sectional  supply  of  pulp suspension to a headbox of a papermaking machine includes a plurality of main inlet lines from a pulp suspension distributor which are distributed over the width of the machine.  A throttle is provided in at least one main inlet line.  Downstream of the throttle, in at least one of the main lines, a subsidiary line for conveying a subsidiary stream of liquid, such as a pulp suspension or water, is connected to the main inlet line and disposed at an angle to the main inlet line.  This angle between the main pulp stream and the subsidiary stream is chosen so that a small change in the rate of flow of the subsidiary stream will cause a large change in the rate of flow of the total stream (main pulp stream + subsidiary stream) directed in the same direction or in the opposite direction of the stream.
Patent CA-2153333-A1 (CA)
Title: Combine sieve distributor apparatus
Inventor: UNDERWOOD MARK
IPC: A01D75/28
Filed: 1994-01-05
Abstract: Sieves (17) for a grain combine (11) have a plurality of longitudinal sections (29). Each section is pivotally mounted in a sieve frame (23). An inclinometer (53) senses if the combine is leaning to one side. The inclinometer controls a drive (51) and linkage mechanism (47) for pivoting each of the sections relative to the sieve frame to maintain each section generally horizontal, Elastomeric seals (55) extend between each of the sections. A distributor at the forward end of the sieve is comprised of a pair of sprockets (71, 73) and a chain (77) extending perpendicular to the longitudinal axis of the sieve. Fingers (79) protrude longitudinally from the chain. The chain is driven when the combine leans.
Patent CA-2153822-A1 (CA)
Title: Cryogenic air separation system with liquid air stripping
Inventor: BONAQUIST DANTE PATRICK
IPC: F25J3/04
Filed: 1995-07-13
Abstract: A cryogenic rectification system which advantageously separates feed air wherein the thermodynamic irreversibility of the argon column top condenser and the lower pressure column is reduced by using a stripping column upstream of the double column main plant.
Patent CA-2156121-A1 (CA)
Title: Method of manufacturing the cycloheptimidazole derivatives
Inventor: TOMIYAMA TSUYOSHI
IPC: C07D403/10
Filed: 1995-08-15
Abstract: Disclosed is a method in which a compound of general formula (1) is reacted with a compound of general formula (2), followed by deprotection of protective group Z to give the cycloheptimidazole derivative (4) wherein R1 is hydrogen or isopropyl; R2 is a lower alkyl; A and A1 are each a substituent at the 4- or 8-position, Al is hydrogen or hydroxyl when A is a hydrogen or A and A1 together form an oxo group or =CHCOOR3 (R3 represents a lower alkyl); the dotted line means two double bonds or saturated single bonds; X is halogen atom or trifluoromethanesulfonate group; Y is B(OH)2 or -Sn(R5)3 (R5 represents a lower alkyl group). The cycloheptimidazole derivative (4) is useful as antihypertensive agent.
Patent CA-2160312-A1 (CA)
Title: Composite structure, especially bridge
Inventor: PETER EMIL
IPC: E01D1/00
Filed: 1995-10-11
Abstract: The composite structure made of wood and re-inforced concrete can be used for bridges, roofs etc. In a bridge, a plate of reinforced concrete carries the roadway and rests on a truss comprising lower and upper chords, transversal girders and struts made of wood and posts made of reinforced concrete. The lower struts are reinforced with steel ties, follow a bent curve and are anchored in lateral end sections. Forces in the wooden parts all extend along the wood's fibre, which increases the maximum load capacity. The concrete posts allow a simple assembly of the wooden elements. The weight of the construction is low, its load bearing capacity high.
Patent CA-2161069-A1 (CA)
Title: Multi-layer golf ball and method for making same
Inventor: SULLIVAN MICHAEL J
IPC: C08L23/26
Filed: 1995-10-20
Abstract: Disclosed herein is a multi-layer golf ball having a core, an inner cover layer comprising an ionomer and having Shore D hardness of about 65 or less, and an outer cover layer having a different composition than the inner cover layer, comprising an ionomer, and having a Shore D hardness of more than 65. The sum of the thickness of the inner cover layer and the thickness of the outer cover layer is greater than 0.090 inches. A method for making the golf ball also is disclosed.
Patent CA-2161237-A1 (CA)
Title: Electric motor-wheel with a rotor having a housing enabling an efficient exchange of heat
Inventor: COUTURE PIERRE
IPC: B60K7/00
Filed: 1993-12-06
Abstract: An electric motor-wheel including a hollow shaft capable of receiving leads from outside the motor-wheel, a stator coaxial with and fastened to the shaft, and a rotor coaxial with and rotatable about the stator. The rotor includes a housing with a cylindrical wall having an inner surface provided with a magnetic assembly arranged around the stator and separated therefrom by an air gap, and the housing includes an inner wall on one side of the cylindrical wall, and an outer wall on the other side of the cylindrical wall. The shaft extends through a central portion of the inner wall, and the outer housing wall includes alternately convex and concave sections extending in the circumferential direction thereof so that during rotation of the rotor, air is circulated within said housing by the convex sections, and along outer portions of the concave sections to enable an efficient exchange of heat through the outer wall.
Patent CA-2163653-A1 (CA)
Inventor: SVATY KARL J JR
IPC: G01M5/00
Filed: 1994-05-23
Abstract: Procédé et dispositif de détection (12) et de recueil (10) de données sur les déformations structurales que subissent des structures dans le temps, permettant d'en diagnostiquer l'intégrité et de déterminer la durée de vie et les réparations ou reconstructions qu'elles nécessitent.
Patent CA-2163872-A1 (CA)
Inventor: JONSSON RUNE
IPC: G07B15/06
Filed: 1994-05-27
Abstract: Procédé et dispositif pour l'enregistrement du déplacement d'un véhicule à l'aide d'une paire de caméras vidéo (9) qui sont situées à une certaine distance au-dessus de la chaussée où circule le véhicule (2). Les caméras sont également situées à une certaine distance l'une de l'autre et orientées de manière à visualiser la chaussée (2) par zones se chevauchant. On obtient ainsi des paires d'enregistrements stéréoscopiques, qui sont comparés par un système de traitement d'images. A l'aide des différentes positions des contours (24, 25) du véhicule, qui sont situées à différents niveaux de hauteur au-dessus du sol, on sélectionne un contour que le déplacement entre les deux enregistrement indique comme étant situé à une certaine distance au-dessus du sol. Le contour (25) du véhicule est utilisé par le système de traitement d'images comme indicateur lors du suivi du déplacement du véhicule.
Patent CA-2164764-A1 (CA)
Title: Tamper-resistant fixture for self-luminous radioactive light
Inventor: POTTS J BARRY
IPC: F21V15/00
Filed: 1995-12-08
Abstract: A tamper-resistant fixture encloses a self-luminous radioactive light in order to prevent removal of the light.  The fixture is secured to a mounting surface using tamper-resistant screws and anchors and allows the light to illuminate the immediate surroundings to mark an exit route without the necessity of power.
Patent CA-2164848-A1 (CA)
Title: Interleukin-2 stimulated t lymphocyte cell death for the treatment of autoimmune diseases, allergic disorders, and graft rejection
Inventor: LENARDO MICHAEL J
IPC: A61K38/17
Filed: 1993-06-09
Abstract: A method for the treatment or prevention of autoimmune diseases, allergic or atopic disorders, and graft rejection is provided, comprising inducing the death by apoptosis of a subpopulation of T lymphocytes that is capable of causing such diseases, while leaving substantially unaffected the majority of other T lymphocytes Cell death is achieved by cycle(s) comprising challenging via immunization these T cells with antigenic substance at short time intervals or by immunization followed by administering interleukin-2 (IL-2) when these T cells are expressing high levels of IL-2 receptor so as cause these T cells to undergo apoptosis upon re-immunization with the antigenic peptide or protein. These methods are applicable to the treatment of autoimmune diseases such as, for example, multiple sclerosis, uveitis, arthritis, Type I insulin-dependent diabetes, Hashimoto's thyroiditis, Grave's thyroiditis, autoimmune myocardis, allergic disorders such as hay fever, extrinsic asthma, or insect bite and sting allergies. food and drug allergies, as well as for the treatment or prevention of graft rejection.
Patent CA-2167842-A1 (CA)
Title: Method of inhibiting the replication of human immunodeficiency viruses with substituted azaspiranes
Inventor: BADGER ALISON MARY
IPC: A61K31/403
Filed: 1994-07-22
Abstract: Invented is a method of inhibiting the replication of human immunodeficiency viruses (HIV) in HIV seropositive humans which comprises administering to such human an effective amount of a substituted azaspirane.
Patent CA-2168435-A1 (CA)
Title: Metallic data carrier
Inventor: PAUSCH RUDOLF
IPC: G09F3/18
Filed: 1994-07-26
Abstract: Data carrier made of metal for personal data of a user carrying the data carrier, such as blood group, height, name, birthday, special characteristics and the like, with the data carrier being largely insensitive to high thermal stresses as well as mechanical influences in order to maintain the data which it carries, characterized by its being designed as a spring steel band automatically winding up in the form of a spiral in a housing likewise consisting of a resistant metal, in the manner of a steel tape measure, and capable of being pulled out of a slot in housing, on which band the data (information) is embossed legibly in cleartext or applied by recesses that have the contour of conventional letters and numbers.
Patent CA-2170320-A1 (CA)
Inventor: GARDNER MICHAEL STUART
IPC: A01K11/00
Filed: 1996-02-26
Abstract: This invention provides an animal ear tag and a method of applying such an ear tag wherein the ear tag engages a driving pin of the applicator through a rear face or front face of the head of the tag. This allows easier fitment of the tag to an applicator in the circumstances where cross-infection through contact between, the applicator pin and the animal's ear is not an issue.
Patent CA-2171572-A1 (CA)
Inventor: MCCHESNEY RODERICK J
IPC: G06F9/445
Filed: 1996-03-12
Abstract: A computer system in a distributed object programming environment includes a number of host computers providing services to clients on a network through internally stored servers. Various types of configuration information for each server are available to clients through persistent server administrators, which are objects containing such information about individual servers. A server administrator can store such information as startup execution definitions, saved program definition, object interfaces and implementations, reaping, tracing, and logging configuration data. Being persistent and external to the server, the server administrator can manipulate and determine its information about a server in response to client requests without starting up the server, thereby facilitating system administration.
Patent CA-2172424-A1 (CA)
Title: Nuclear magnetic resonance borehole logging apparatus and method
Inventor: KLEINBERG ROBERT L
IPC: G01V3/32
Filed: 1996-03-22
Abstract: A nuclear magnetic resonance (NMR) logging technique reveals the volume of hydrocarbons in an earth formation. The differences in viscosity among gas, oil and water are used to distinguish among these three fluids. During NMR logging, a parameter of a sequence of magnetic field pulses is altered, causing echo signal strengths to vary due to the diffusion of the fluids in the formation. The volume of hydrocarbons in the formation is determined from detected spin echo strengths. The invention applies to wireline NMR logging and NMR logging-while-drilling techniques.
Patent CA-2172445-A1 (CA)
Inventor: BUREAU JACQUES
IPC: A62C3/16
Filed: 1996-03-22
Abstract: Ce dispositif d'aération coupe-feu comprend une goulotte (15) entourée d'un gainage (28) en matériau de protection coupe-feu. Une garniture d'aération coupe-feu (22) formée d'une armature comprenant des grilles (2, 3) fixées à des plaques (4, 5) de matériau réfractaire portant chacune une plaque (10, 11) en matériau intumescent est fixée à la goulotte en regard d'une fente d'aération (20) de celle-ci. Entre les plaques (10, 11) en matériau intumescent est ménagé un passage d'aération (12) se trouvant en regard de la fente d'aération (20) de la goulotte (1) contenant des câbles (C) à protéger.
Patent CA-2173377-A1 (CA)
Title: Multi-Band Digital Receiving Apparatus and Method with Bandwidth Reduction
Inventor: KELLEY EDWIN A
IPC: H04B1/18
Filed: 1992-04-30
Abstract: A multi-service digital receiver is presented with multiple simultaneous uses, made possible with a single practical analog-to-digital converter (38) translating the various service bands in frequency to form a single, generally continuous composite service band in which substantial frequency gaps (6) between the different services are eliminated. Bandwidth requirements are further reduced by a bandfolding technique in which at least one service waveband is divided about an intermediate mixing frequency (F mix), the divided portions are overlapped so that they collectively occupy a sub-waveband with a smaller bandwidth than the original band, and the mixing frequency (F mix) is chosen such that user-selected frequencies do not interfere with other active frequencies. Interference between non-selected active frequencies is permissible and simply ignored.
Patent CA-2176414-A1 (CA)
Title: Acyl guanidine and amidine prodrugs
Inventor: KIMBALL S DAVID
IPC: A61K38/00
Filed: 1996-05-13
Abstract: Acyl guanidine, thioguanidine and amidine compounds are provided which have the structure   wherein z is a substructure which when linked to   forms a prodrug of compounds with pharmaceutically active properties.  In preferred embodiments, Z is a thrombin inhibitor substructure containing residues binding at the distal and proximal sites with the proviso that Z does not contain boron or a boron-containing moiety. Ax and A1x may be the same or different and are independently selected from Acyl, H or alkyl, at least one of Ax and A1x being Acyl; and including all stereoisomers thereof, and pharmaceutically acceptable salts thereof.
Patent CA-2177234-A1 (CA)
Inventor: JEON CHANG WOOK
IPC: H04N5/64
Filed: 1996-05-23
Abstract: The present invention relates to an apparatus that removes howling  phenomena  in  a  video  display  appliance  capable  of absorbing and damping vibrations arising from the output of a loudspeaker to remove the howling phenomena produced by the transfer of the vibrations to a cathode-ray tube.  The apparatus includes a vibration-absorbing section mounted on the loudspeaker for  absorbing vibrations  generated and propagated  from the loudspeaker  due  to  the  output  of  the  loudspeaker,  and  a vibration-damping  section  having  a  predetermined  space  for receiving  the  vibration-absorbing  section  therein. The vibration-damping section disperses  and damps  the remaining vibrations passing through the vibration-absorbing section in the space.
Patent CA-2178963-A1 (CA)
Title: Liquid decontamination system using electrical discharge with gas injection
Inventor: GREENE HUGH W
IPC: C02F1/32
Filed: 1995-01-11
Abstract: A liquid decontamination method and appa-ratus (10) uses a series of pulsed electrical arcs across electrodes (22, 30) placed within a liquid stream which passes through a decontamination module (12). Sufficient energy is delivered by a pulse generator (50) to the electrodes (22, 30) whereby lethal ultraviolet radiation and mechanical shock waves are created by the arcs within the de-contamination module (12).  A plurality of modules can be operated in parallel or in series to vary the capacity of the apparatus. Gas is injected through one of the electrodes (22, 30) to facilitate the gen-eration of arcs within the liquid.
Patent CA-2179641-A1 (CA)
Title: Wave energy transformer
Inventor: GARDNER FRED ERNEST
IPC: E02B9/08
Filed: 1994-12-13
Abstract: Installation for extracting energy from a liquid in which swell occurs relative to a bottom, comprising a first and second container (37, 38) for placing at a determined horizontal first mutual distance at least partially under the surface of the liquid, each provided with a closed upper side (40) for directing toward the liquid surface, closed side walls (39) and an open underside for directing toward the bottom for enclosing a gas under the liquid surface, wherein the gas is bounded to the underside of the container by a quantity of liquid entering via this underside, which quantity of liquid varies as a result of the swell, a transport conduit (15) for transporting gas from the first to the second container and vice versa, and generator means responding to the variation in the quantity of liquid in at least one of the containers for generating energy from this variation.
Patent CA-2179852-A1 (CA)
Inventor: JANKS JOHN SEAGER
IPC: C02F1/28
Filed: 1996-06-25
Abstract: A method for tailoring naturally occurring zeolite materials with silane compounds and using such silane tailored naturally occurring zeolite solid sorbent materials to remove benzenes and alkyl benzenes (BTEX) from contaminated water streams is described.
Patent CA-2180420-A1 (CA)
Inventor: POPE RANDY D
IPC: A47J31/60
Filed: 1996-07-03
Abstract: A spent beverage brewing substance disposal device for use with a beverage brewing apparatus.  The disposal device is connected to the beverage brewing apparatus for receiving a slurry of spent beverage brewing substance andliquid.  The disposal device includes a housing having a delivery port communicating with a drain conduit of the beverage brewing apparatus for receiving the slurry therethrough.  A foraminous structure is retained in the housing and positioned for receiving the slurry.  The foraminous structure allows a liquid portion to drain therethrough while retaining the solid or particulate matter of the slurry.  A pressurizing apparatus is coupled to the housing of the disposal device so as to pressurize the interior chamber defined by the housing to expedite the separation of the liquid portion from the solid portion.  Liquid which is drained from the slurry passes through the foraminous structure and into a drain. The housing is removable from the drain so as to facilitate easy emptying of the drained portion of the spent beverage brewing substance.  Seals are provided between a cover of the housing and the housing and drain so as to seal the housing againstincreased internal pressure induced by the pressuring apparatus.  A pump is alsoprovided to drain the liquid portion from the device.
Patent CA-2180489-A1 (CA)
Title: Electrical connector
Inventor: HARTING DIETMAR
IPC: H01R13/658
Filed: 1996-07-04
Abstract: For an electrical connector for assembly on printed-circuit boards, having a housing which contains and screens contact elements it is provided that the housing is manufactured as an injection-moulded part with integrally formed pins. When the connector is assembled on the printed-circuit board, the pins engage into plated holes and the electrical connection of the housing to the printed-circuit board is effected by soldering the pins or by means of a press-in portion formed on the pins.