baber/WOPTO huggingface dataset:
Patent CA-2200865-A1 (CA)
Title: Method of treating liquids to inhibit growth of living organisms
Inventor: BARAK AYALA
IPC: C02F1/76
Filed: 1995-09-26
Abstract: A method and apparatus for treating a liquid (2) to inhibit growth of living organisms therein by adding to the liquid an active biocidal ingredient formed by mixing an oxidant (4) and an amine source (6), by: producing a predetermined dilution of the oxidant (4); producing a predetermined dilution of the amine source (6);  synchronously metering the two dilutions into a conduit (16) to continuously mix therein according to a predetermined ratio to produce the active biocidal ingredient having high reproducibility, stability and efficacy in situ in the conduit (16); and continuously injecting the active biocidal ingredient, as it is produced in situ in the conduit (16), directly from the conduit into the liquid being treated.
Patent CA-2202328-A1 (CA)
Inventor: AUZERAIS FRANCOIS M
IPC: E21B47/06
Filed: 1997-04-10
Abstract: An earth formation tool measures pressure from within a borehole. A portion of the borehole wall is isolated from surrounding borehole fluids by placing a chamber of a borehole tool against the borehole wall. The chamber comprises a recess in an exterior surface of a borehole tool. Mudcake present on the isolated portion of the borehole wall is disintegrated by an ultrasonic transducer within the chamber. In this manner, there is no resistance to fluid flow from the chamber to the formation. A pressure gauge measures pressure of the chamber to indicate pressure of the earth formation. This approach can be used to make moving or stationary measurements of earth formation pressure.
Patent CA-2202438-A1 (CA)
Title: Quick change adaptor
Inventor: YEAGER LINUS
IPC: A01B35/22
Filed: 1997-04-11
Abstract: A tapered adaptor (10) disposed at a free, leading end of a cultivator shank (S) is arranged to co-operate with a blocking member (27). The blocking member (27) defines forwardly facing abutment surfaces (28, 29). They engage a rear edge portion (54) of the socket (46) of a sweep when the sweep is subjected to a hard impact which would otherwise force the socket beyond the position required for a firm wedging frictional grip with the adaptor (10). Thus, the undesired displacement excessively beyond the required grip position is prevented to enable removal of the socket (46) on exchange of the sweep by a hammer blow. A retainer pin (32) is resiliently held in a transverse groove(31) by the nose (35, 36) of a pair of flat springs. Thus the free movement which might result in loss of the pin 32 is prevented while allowing relatively easy withdrawal of the pin when the sweep is to be knocked off the adaptor. Several alternative embodiments are mentioned. The preferred taper of the adaptor (10) and thus of the sleeve (46) amounts to an included angle of about 2°.
Patent CA-2204161-A1 (CA)
Inventor: FRITZSCH THOMAS
IPC: A61B8/00
Filed: 1995-10-13
Abstract: A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein a material is introduced in the examination area to be acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.
Patent CA-2205257-A1 (CA)
Title: Induction cooking cartridge for use with bi-metal switches
Inventor: BARRITT WILLIAM D
IPC: H05B6/12
Filed: 1997-05-13
Abstract: A delay timer incorporated into an induction cooking cartridge permits the use of the induction cooking cartridge with conventional modular cooktops including bi-metal power switches without damage to the induction circuitry.
Patent CA-2206513-A1 (CA)
Title: Composition for surface treatment
Inventor: HARTMAN NICHOLAS PETER
IPC: C09D183/02
Filed: 1995-12-06
Abstract: An aqueous composition for the treatment of surfaces such as metals, particularly aluminium, comprises a tetraalkyl silicate or a monomeric or oligomeric hydrolysis product thereof, together with a hydrous oxide sol, e.g., silica sol, in dispersion in a fluid aqueous medium. The composition can be applied as a pretreatment coating to improve the adhesion of subsequently applied paint, lacquer or adhesive.
Patent CA-2210120-A1 (CA)
Title: Catheter system
Inventor: SCHWAGER MICHAEL
IPC: A61M25/00
Filed: 1997-07-09
Abstract: The catheter system comprises an elongated catheter shaft 2 with a longitudinal lumen 4 extending therethrough and provided with a closure 6 in the vicinity of the distal end of the shaft. Inside the longitudinal lumen 4 is a removable wire 7 with a tip 14 providing a distally oriented push to closure 6. A balloon 8 is surrounding a portion of the distal area 3 of catheter shaft 2. A guidewire lumen 10 is formed in the distal area 3 of catheter shaft 2 with an entry 11 for the guidewire 12 at the distal end 5 of shaft 2 and an exit 13 for the guidewire 12 which is distal of the distal end 9 of balloon 8. The closure 6 of the longitudinal lumen 4 is distal of the exit 13 of the guidewire lumen 10 whereby the distal tip 14 of wire 7 provides the closure 6 with a push distal of the exit 13 of the guidewire lumen 10.
Patent CA-2210339-A1 (CA)
Title: Makeup remover pad
Inventor: TRONCHETTI SAURO
IPC: A61F13/15
Filed: 1997-07-18
Abstract: Makeup remover pad having a central body made of carded cotton which lies between two supporting layers made of non-woven cotton fabric.
Patent CA-2212904-A1 (CA)
Title: The activity-inhibitor and activity-potentiator for glutamic acid in the brain
Inventor: MALLICK HRUDANANDA
IPC: A61P25/28
Filed: 1997-08-11
Abstract: The drugs inhibiting the activity of excitatory neurotransmitter glutamic acid and the drug potentiating the activity of glutamic acid are provided.  The activity-inhibitor for glutamic acid in the brain, which comprises L-lysine or its derivatives or L-arginine or its derivatives as an effective component, and the activity-potentiator for glutamic acid in the brain, which comprises glycine or its derivatives as an effective component.
Patent CA-2214973-A1 (CA)
Title: Cross flow metalizing of compact discs
Inventor: SCHWARTZ VLADIMIR
IPC: C23C14/34
Filed: 1995-12-13
Abstract: A cross flow system for metalizing compact discs, capable of being interposed in-line in the production of the compact discs after premastering, mastering, electroforming, and molding includes a vacuum chamber having diametrically opposed vacuum locks (98, 106) and multiple metallization sources (80, 82) in the form of magnetrons, with a preferred cross flow including the introduction of a disc to be metalized through one lock (98, 106) and the exit of the metalized disc through the diametrically opposite lock (98, 106). The double lock (98, 106) diametrically opposed cross flow system eliminates the problems of throughput limitations, high rate deposition, substrate pitting, and software complexity due to indexing which makes prior systems both costly and inefficient. The system also permits processing of more than one substrate or compact disc title such that multiple titled compact discs can be processed simultaneously.
Patent CA-2215157-A1 (CA)
Title: Procede de deshydratation et de degazolinage d'un gaz, comportant deux etapes complementaires de regeneration du solvant
Inventor: LEBAS ETIENNE
IPC: C10G5/04
Filed: 1997-09-23
Abstract: Procédé de traitement d'un gaz contenant du méthane, au moins un hydrocarbure supérieur et de l'eau, pour en éliminer l'eau et en extraire le (ou les) hydrocarbure(s) supérieur(s), dans lequel: -a) on sépare le gaz à traiter en deux flux (1) et (2); -b) on met en contact au moins le flux (2) avec une phase liquide recyclée renfermant de l'eau et un solvant, de manière à obtenir une phase liquide aqueuse appauvrie en solvant et une phase gazeuse chargée en solvant; -c) on sépare la phase aqueuse appauvrie en solvant et la phase gazeuse chargée en solvant; -d) on met en contact ladite phase aqueuse appauvrie en solvant un des flux de gaz exempt de solvant défini en (a), le solvant étant extrait de la phase aqueuse appauvrie par le gaz, et on recueille une phase gazeuse riche en solvant et une phase liquide aqueuse régénérée; -e) on mélange la phase gazeuse soit à la phase gazeuse issue de l'étape (b) soit au flux (2) en amont de l'étape de contact (b); -f) on refroidit la phase gazeuse issue du mélange de manière à la condenser partiellement en une phase aqueuse contenant du solvant et une phase hydrocarbure et à produire le gaz traité, débarrassé au moins en partie de l'eau et des hydrocarbures supérieurs qu'il contenait; -g) on sépare par décantation lesdites phase aqueuse et phase hydrocarbure issues de l'étape (f); et -h) on recycle ladite phase aqueuse contenant du solvant à l'étape (b).
Patent CA-2216189-A1 (CA)
Inventor: ZHU JIA BEI
IPC: G01N33/58
Filed: 1997-11-12
Abstract: In the field of medical diagnosis, determination of analytes such as hormones, proteins, antibodies or antigens is very important to the diagnostic of medical status. Enzyme immunoassay (EIA) and radioimmunoassay (RIA) are among the most common method for quantifying such substances However, these methods are usually time consuming and technically demanding, especial for small sample number. In this invention, an inexpensive method of semi-quantifying the analyte in biological samples is invented. This invention can also determine more than one analytes with a single test kit. The device is using the principle of the one-step colloidal gold immunoassay for semi-quantifying purpose. By comparing the color intensity of the built-in semi-quantitative control with the test result, an estimated concentration of the analyte can be obtained. Also, between each band, a visible marker line will be used to distinguish among bands. This diagnostic kit with internal semi-quantitative capability may be used for fertility tests, infectious diseases tests and other one step diagnostic tests.
Patent CA-2216734-A1 (CA)
Title: Microcellular foams containing an infrared attenuating agent and a method of using
Inventor: SHMIDT CRESTON D
IPC: C08J9/12
Filed: 1996-03-15
Abstract: Disclosed is an open-cell microcellular foam comprising an alkenyl aromatic polymer foam, the foam being characterized in that the foam has an average cell size of 70 micrometers or less, the foam being evacuated, the foam containing an infrared attenuating agent in a quantity sufficient to reduce the thermal conductivity of the foam relative to a corresponding foam without the infrared attenuating agent.     Also disclosed is a closed cell, unevacuated microcellular foam comprising an alkenyl aromatic polymer foam, the foam having an average cell size of 1.0 micrometers or less, the foam being characterized in that it contains an infrared attenuating agent in a quantity sufficient to reduce the thermal conductivity of the foam relative to a corresponding foam without the infrared attenuating agent.
Patent CA-2217490-A1 (CA)
Title: Composition for priming dental and biological substrates
Inventor: FISCHER DAN E
IPC: A61K6/083
Filed: 1996-01-11
Abstract: Compositions and methods for priming or sealing dental or biological substrates for subsequent bonding. The primer is particularly useful for priming dentin of a tooth to prepare the dentin for bonding with a resinous material. The primer comprises a mixture of a polymerization initiator such as camphoroquinone and a polymerizable promoter such as methacrylic acid.  Polymerizable promoters within the scope of the present invention have at least one ethylenically unsaturated group and at least one carboxylic acid group. The primer may further comprise a solvent such as ethanol, a natural resin such as Canadian balsam and a polymerizable resin such as 2-hydroxyethyl methacrylate (HEMA). The primer can also be formed from a mixture of a polymerization initiator, a natural resin and a polymerizable resin.
Patent CA-2218997-A1 (CA)
Title: Process for the preparation of random propylene copolymers and products obtained therefrom
Inventor: MORINI GIAMPIERO
IPC: C08F4/44
Filed: 1997-02-25
Abstract: The present invention relates to a process for the preparation of random copolymers of propylene with C2-C10 .alpha.-olefins, carried out in the presence of a catalyst comprising: A) a solid component comprising a titanium compound supported on MgCl2 in active form and an electron-donor compound; B) an alkyl-Al compound, and C) an electron-donor compound selected from the group of 1,3-diethers. The copolymers obtained using the said process show, for an equivalent content of .alpha.-olefin, a lower content of xylene-soluble fractions when compared with the copolymers obtained with the catalysts of the prior art.
Patent CA-2219962-A1 (CA)
Title: C3 plants expressing photosynthetic enzyme of c4 plants
Inventor: KU MAUICE SUN-BEN
IPC: C12R1/91
Filed: 1997-12-31
Abstract: A C3 plant has a gene for an enzyme involved in a C4 pathway of photosynthesis and expresses the C4 photosynthesis gene at a high level. More specifically, the C3 plant includes DNA which contains (a) an expression control region of a gene for an enzyme involved in a photosynthetic pathway of a phylogenetically related C4 plant and (b) a structural gene for an enzyme involved in a photosynthetic pathway of the C4 plant. The C3 plant expresses the enzyme encoded by the structural gene at a high level.
Patent CA-2221280-A1 (CA)
Inventor: MOTTRAM TOBY TREVOR FURY
IPC: A61D17/00
Filed: 1996-06-19
Abstract: Apparatus and a method for monitoring animal exhalation, to provide an indication of the condition of an animal is disclosed. Apparatus for collection and temporary or permanent storage of animal exhalation sample is disclosed, together with apparatus for conditioning a sample prior to analysis. A method of conditioning a sample prior to analysis is also disclosed. Use may be made of the above mentioned apparatus and method in the diagnosis of the condition of an animal. Conditions of interest include metabolic conditions of animals such as dairy cattle; these can be monitored by measuring analytes in the exhaled breath, emanations from the milk or both.  Use may also be made of said apparatus and method in the detection of antibodies present in samples of blood, milk and mucus particulates in exhaled breath. It is preferred that the monitoring apparatus is portable.
Patent CA-2222738-A1 (CA)
Title: Refilling liquid storage tanks
Inventor: DENBY CARL
IPC: B01D19/00
Filed: 1996-05-31
Abstract: A pipe (28) with a plurality of gas outlet apertures (30) is inserted inside a fill pipe (12) of a liquid storage tank (2). The fill pipe has an outlet (16) normally covered by the tank contents. The gas pipe conveys the gaseous contents of the fill pipe to a separate outlet as refilling liquid is introduced into the fill pipe. This allows the gas inside the fill pipe to be separately vented from the fill pipe without disturbing the liquid contents of the tank.
Patent CA-2228278-A1 (CA)
Title: Shear processing of tio2 slurries
Inventor: GOROWARA RAJEEV LOCHAN
IPC: C09C3/04
Filed: 1996-07-31
Abstract: A process for enhancing the optical efficiency of TiO2 slurries starting from base TiO2 particles having less than about 65 weight % particles, greater than 0.6 microns, and shear processing a slurry at a solid content of at least 83 %  by weight.
Patent CA-2229037-A1 (CA)
Title: Multiple currency travel reservation information management system and method
Inventor: CHUNG KIERAN SEBASTIAN
IPC: G06Q10/00
Filed: 1996-08-28
Abstract: Methods and system for effecting the consolidation of travel reservation information including bookings and ticketing using different currencies are disclosed. Specifically, a method is disclosed in which travel reservation information is generated in a computer reservation system (CRS), the prices of which are represented in a predetermined global currency, and subsequently stored in a global data storage medium, such as a database. The information generated from the CRS can be pre-ticketed or ticketed. The information can be generated from more than one CRS. The system that is disclosed includes a global data storage medium, in which pricing information regarding travel reservations generated in at least one CRS is represented in a global currency and is stored. Each CRS is accessed by at least one locally operated computer system to generate the travel reservation information.
Patent CA-2233171-A1 (CA)
Inventor: MIKLER CLAUDE
IPC: A61K38/24
Filed: 1996-09-25
Abstract: A novel transdermal system for the percutaneous delivery of a hormone, including a carrier and an adhesive matrix, is disclosed. The matrix includes (a) 20-50 parts by weight of a poly(styrene-isoprene-styrene) triblock copolymer, (b) 30-60 parts by weight of a tackifier resin, (c) 4-25 parts by weight of propylene glycol laurate, (d) 2-10 parts by weight of a compound selected from N-alkyl-2-pyrrolidones, wherein the alkyl group is a C4-15 group, (e) 0.01-2 parts by weight of a stabilising agent, (f) 0.1-12 parts by weight of at least one hormone selected from the group consisting of oestrogenic and progestogenic components, and (g) 1-12 parts by weight of a vinyl acetate/N-vinyl-2-pyrrolidone copolymer. A method for preparing said system and the therapeutical use thereof are also disclosed.
Patent CA-2233598-A1 (CA)
Title: Apparatus for the measurement of gravitational fields
Inventor: VERYASKIN ALEXEY VLADIMIROVICH
IPC: G01V7/00
Filed: 1995-10-04
Abstract: Apparatus for measuring gravitational fields comprising a superconducting string (1) fixed at both ends and forming part of a closed superconducting loop inductively coupled to two driving solenoids (L d1, L d2). Displacement of the string in response to a gravitational field is sensed by two magnetic flux transformers each comprising a signal coil and two pick-up coils (L p1, L p2). Pairs of pick-up coils lie in two perpendicular planes providing two independent channels of measurements. The two arms of each flux transformer are balanced to convert only the amplitudes of the string's antisymmetric natural modes into an output voltage. The output voltage of each channel is used to produce a feed-back current distribution (I y1, I y2) proximate and parallel to the string. By adjusting the feed-back current, the effective relaxation time and resonant frequency of the first antisymmetric mode of the string can be adjusted, while leaving the symmetric modes unchanged, thus increasing the apparatus' sensitivity to gravity gradients.
Patent CA-2235028-A1 (CA)
Title: Vehicle tire
Inventor: IWASAKI NAOAKI
IPC: B60C11/00
Filed: 1998-04-14
Abstract: A vehicle tire which has an aspect ratio of less than 55 % and comprises a tread portion having a profile whose radius  of  curvature  decreases  substantially continuously from the  tire equator to  each tread edges.   The  tread profile  from  the  tire  equator  to  each  tread  edge  is substantially defined by a curve   e.g., ellipse, cycloid, epicycloid, involute curves and the like, of which equation is differentiable in the range between the tire equator and each tread edge.
Patent CA-2235203-A1 (CA)
Inventor: WEISS HANS-JOACHIM
IPC: D02G3/38
Filed: 1997-01-10
Abstract: In the Fig. 1 an apparatus known as such for producing a multicoloured yarn except that the part-threads 11, 11.1 and 11.2 after texturising in a texturising nozzle 5 are separated again into crimped part-threads 11.3 through 11.5 and according to the invention are compacted in after-compacting means 8 before these part-threads are jointly compacted in a collective compacting means 9 and subsequently are wound up as a yarn 12 in a winding device 10. The individual elements concerned are briefly described as cooling shafts 1, finish applicator means 2, pre-compacting means 3 and draw rolls 4. The further elements have been described earlier.  The finish applicator means 2 as a rule are oil applicator means, and the compacting means 3, or 8 or 9 respectively, are either entanglement means or false twist means. Both means are known from earlier descriptions already.
Patent CA-2235409-A1 (CA)
Inventor: LAMARTINE ROGER JEAN PAUL
IPC: B09B3/00
Filed: 1996-10-17
Abstract: A process for the confinement of generally harmful solid materials is disclosed and claimed. The solid materials are immobilized and confined within a solid matrix for an unlimited storage free from pollution risks. The solid materials are mixed with at least one low condensed, liquid phenolic resin and a cross-linking agent which is selected from partly or wholly sulfonated linear and/or cyclic phenolic oligomers, and the cross-linking which forms said solid matrix under hardening is allowed to occur. When a mould is used for the hardening reaction, solid blocks are formed which are resistant to water, heat, and environmental acids and bases. These blocks need not be stored in a safe environment but can further be used for applications such as construction elements.
Patent CA-2239678-A1 (CA)
Title: Bag making machine
Inventor: STICKNEY MICHAEL
IPC: B31B50/64
Filed: 1998-06-05
Abstract: A plastic bag making machine is disclosed, and includes a dancer assembly that receives film from which the bags are to be made.  The film travels from the dancer assembly to a drum-in nip and then to a sealing drum.  After the sealing drum, the film travels to a drum-out nip.  Then the film travels to a device-in nip, vertically through a processing device, and then to a device-out nip.  A controller is connected to and controls the drum-in nip, the drum-out nip, the device-in nip, the device out nip, the dancer assembly and the sealing drum (including the seal bars and/or the sealing blanket drives).  The controller includes a memory in which at least one set of operating parameters used to control the machine is stored.
Patent CA-2244661-A1 (CA)
Inventor: STOCKTON THOMAS
IPC: F16H47/08
Filed: 1996-10-31
Abstract: Système servant à entraîner différents accessoires rotatifs de véhicule, tels qu'un alternateur, une pompe de transmission hydraulique (18), une pompe de conduite assistée (16) et un compresseur de conditionnement d'air (14), à partir du convertisseur de couple (27) d'une transmission automatique. Ce système utilise la caractéristique de vitesse douce du convertisseur de couple (27) de la transmission automatique, afin de réaliser une transition de rapport de commande des accessoires également douce. On peut également utiliser ce système pour entraîner les accessoires au moyen d'une transmission manuelle.
Patent CA-2248118-A1 (CA)
Title: Method and apparatus for wall construction
Inventor: MITCHELL EVERETT LEE
IPC: E04F13/08
Filed: 1997-03-05
Abstract: The present invention is directed to an apparatus and method for attaching panel members (54a, 54b) to perimeter framing members (104, 106), to form a wall. The apparatus attaches the perimeter framing members (104, 106) to the panel member (54a, 54b) by an attachment member (108a, 108b) located between a surface of the panel member (54a, 54b) and a wall of a pocket of the perimeter framing member (104, 106).    To receive the attachment member (108a, 108b), which is an elongated rod, the panel member (54a, 54b) and perimeter framing member (104, 106) form an elongated passage.
Patent CA-2248687-A1 (CA)
Inventor: MICHIELS MAARTEN
IPC: H02G15/007
Filed: 1997-03-26
Abstract: A strip (1) for winding around and gripping an elongate object, e.g. a cable (37), each end of the strip (1) comprising a connection part (9a) which may interlock with a respective connection part (9b) of another, substantially identical, strip (1), thereby enabling a plurality of such strips (1) to be connected together substantially end-to-end to form a longer strip for winding around and gripping an elongate object.