baber/WOPTO huggingface dataset:
Patent CA-2232707-A1 (CA)
Title: Rotating solar photobioreactor for use in the production of algal biomass from gases, in particular co2-containing gases
Inventor: PETERS RAINER
IPC: C12M1/06
Filed: 1996-09-21
Abstract: The proposed solar photobioreactor for use in the production of algal biomass from gases, in particular CO2-containing gases, is provided with a frame (32) which carries a gas-permeable algal substrate (48) which can rotate about an axis (62) of rotation and can be exposed to predominantly laterally incident diffuse or direct sunlight. A drive unit (54) is provided for rotating the algal substrate (48) and a nutrient medium feed device (64) is provided for applying a nutrient medium to the algal substrate (48).
Patent CA-2235703-A1 (CA)
Inventor: FAASS JUDITH KATHERINE
IPC: B32B27/22
Filed: 1996-11-13
Abstract: The present invention is directed toward a multilayer film which includes a first surface layer and a second surface layer. The first surface layer is composed of materials which disintegrate when subjected to conditions present in conventional sewage systems. The second surface layer is formed from a material which is essentially inert to water, urine and other bodily fluids.  Typically, the second surface layer is an extremely thin coating which provides a waterproofing effect. The multilayer film may be utilized as an outer cover in a wide variety of products such as, for example, disposable diapers and feminine care products such as sanitary napkins. In one desirable embodiment the multilayer film includes only these two layers so that the material may be flushed down a conventional toilet without clogging the sewage system because the first surface layer rapidly disintegrates in water leaving only the thin, gossamer second surface layer which can pass through the sewage system without adversely affecting it.
Patent CA-2235833-A1 (CA)
Title: Production of metal such as aluminium, magnesium, silicon and the like from metal oxide compounds
Inventor: ELLINGSEN OLAV
IPC: C22B5/02
Filed: 1996-10-23
Abstract: A thermo-mechanical process for producing aluminium or other metals from aluminium or metal compounds, is described, whereby aluminium oxide or similar aluminium compounds or similar other metal compounds, are heated by friction generated by mechanical forces from a rotating and/or agitating means within a process chamber together with either free water or waterforming constituents in the aluminium-or-metal compounds and a hydrogen- and carbon delivering material such as oil or natural gas, such as methane, and carbon in such a manner that material in the reactor chamber behaves like a hot mechanical fluidized bed whereby the water can be split into hydroxyl and hydrogen radicals making hydrogen radicals react, with the oxygen in the hot and now unstable aluminium or metal compound and thus releasing aluminium or metal atoms, and the hydroxyl radical reacting back to water and if carbon is used, the surplus of oxygen reacting with carbon to CO or CO2.
Patent CA-2237362-A1 (CA)
Title: Internet global area networks fax system
Inventor: MURPHY FREDERICK J
IPC: G06Q10/10
Filed: 1996-11-12
Abstract: A method and apparatus for transmitting class 1, 2, or 3 facsimile image data over Internet Global Area Networks is shown. A first device (16) converts facsimile image data from a local facsimile machine (14) into electronic mail format data and transmits the electronic mail format data over a network (12) to a second remote device (16) which converts the electronic mail format data to facsimile image data for print out by a remote facsimile machine (26) connected thereto.
Patent CA-2239380-A1 (CA)
Inventor: FELDSINE TIMOTHY R
IPC: B23C5/06
Filed: 1996-10-22
Abstract: A rotating tool (10) mateable with the spindle of a machine tool for high speed rotation is disclosed. The tool is comprised of a shank (12) and a disk (14). The disk (14) has attached to its periphery cutting inserts (20). These inserts (20) may be attached directly to recesses in the disk or to lugs (22) protruding from the disk (14). If the inserts are attached to lugs (22), then the disk (14) will further have opposing counterweight lugs (24) protruding from the disk (14) in an opposite direction. A band (34) of high tenacity material extends around the disk (14) to restrain radial expansion. Additionally, the disk (14) may be encompassed in a restraining material to restrain any disk parts that may separate from the disk body.
Patent CA-2241330-A1 (CA)
Title: Conversion of hexafluorobenzene to bromopentafluorobenzene
Inventor: ASKHAM FREDRIC
IPC: C07F1/02
Filed: 1997-10-27
Abstract: A method for synthesizing bromopentafluorobenzene from hexafluorobenzene is described.
Patent CA-2244969-A1 (CA)
Title: Process for the production of an electrode for a fused carbonate fuel cell, electrode produced according to this process and fused carbonate fuel cell provided with an electrode produced according to this process
Inventor: JANTSCH UWE
IPC: H01M8/14
Filed: 1997-01-31
Abstract: The invention concerns a process for the production of a porous lithium cobaltite electrode plate with a large inner surface and low polarization resistance. Lithium carbonate powder and cobalt metal powder are uniformly mixed together and then films are produced from the mixture and plates from the films, which plates are sintered and then placed in an air stream for several hours at a temperature between 400 ° C and 488 ° C  until the conversion of said plates to lithium cobaltite electrode plates with an extremely large inner surface has taken place.
Patent CA-2247426-A1 (CA)
Title: Cutting equipment with automatic positioning apparatus
Inventor: MIGLIETTA ADELIO
IPC: B26D7/26
Filed: 1997-02-24
Abstract: The equipment for cutting sheet material, for example paper or plastics, comprises a plurality of pairs of blade (10) and counter-blade (12) units slidable and fixable on respective elongate support members (14); a first positioning carriage (16) movable parallel to the elongate support member (14) of the counter-blade units (12) and having means for selective engagement with these units (12) and means for locking the units (12) selectively to the elongate support member (14); a second positioning carriage (18) movable parallel to the elongate support member (14) of the blade units (10) and having means for selective engagement with these units (10) and means for locking the units (10) selectively to the elongate support member (14); drive means for moving the carriages (16, 18) uniformly and in synchronism; means for detecting the axial position of the carriages (16, 18); and a control unit.
Patent CA-2249633-A1 (CA)
Title: Organomineral decontamination gel and use thereof for surface decontamination
Inventor: BARGUES STEPHANE
IPC: G21F9/28
Filed: 1997-03-20
Abstract: An organomineral decontamination gel useful for decontaminating surfaces, particularly metal surfaces, is disclosed. The organomineral gel consists of a colloidal solution including a combination of an inorganic viscosifier and an organic viscosifier (coviscosifier) selected from water-soluble organic polymers and surfactants. The use of an organic viscosifier substantially improves, inter alia, the flow properties of the gels and substantially reduces the amount of mineral filler required, which leads to a reduced amount of solid waste. A method for decontaminating metal surfaces by applying said organomineral gel on the surface to be decontaminated, leaving the gel thereon, and removing said gel, particularly by rinsing, is also disclosed.
Patent CA-2252344-A1 (CA)
Title: Improved methods of preparing 4-cyano-4-(substituted indazole)cyclohexane-carboxylic acids useful as pde4 inhibitors
Inventor: CARON STEPHANE
IPC: C07D231/56
Filed: 1998-11-02
Abstract: ABSTRACT      An improved process for preparing a compound of Formula (1):                             comprising:      (a) treating a compound of Formula (la):                         with an alcohol comprising a compound of Formula (Ib-A) and an acid comprising acompound of Formula (Ib-B):                   Ra-OH      and       HX                         (lb-A)                (lb-B) wherein R. is selected from the group consisting essentially of hydrogen; (C1-C6) alkyl; phenyl and (C1-C3) alkyl-phenyl wherein said phenyl groups are optionally substituted by one or two substituents selected from the group consisting essentially of -(C1-C4) alkyl; -O(C1-C3) alkyl; Br; and Cl; and HX is an acid selected from the group consisting essentially of hydrobromic acid; hydrochloric acid; sulfuric acid; sulfonic acid; and aliphatic and aromatic sulfonic acids selected from the group consisting essentially of methanesulfonic acid, trifuoromethanesulfonic acid, benzenesulfonic acid, benzylsulfonic acid, p-toluene sulfonic acid, and camphorsulfonic acid, whereby HX provides the acidic conditions which result in formation of a salt of the corresponding imidate of Formula (lc):       and (b) hydrolyzing said compound of Formula (lc) to provide said compound of Formula (1).
Patent CA-2253082-A1 (CA)
Inventor: SALGE JUERGEN
IPC: B05D7/24
Filed: 1998-11-05
Abstract: Dispositif pour le traitement de surface d'un substrat (3) par décharge électrique entre deux électrodes dans un mélange gazeux susceptible de générer des sous-produits (par exemple des poudres) pouvant se déposer sur les électrodes, dans lequel l'une (9) des électrodes est un rouleau sur lequel peut être appliqué le substrat, des moyens étant prévus pour entraîner le rouleau et le substrat en rotation et pour injecter le mélange gazeux entre les électrodes, le dispositif étant remarquable en ce que la seconde électrode est un rouleau-électrode (11) sur lequel le substrat en défilement peut également être appliqué, et qui est disposé parallèlement à l'autre rouleau (9) à un intervalle approprié. Grâce à cet agencement, le substrat (3) protège chaque électrode (11 ) et évite qu'elle ne soit recouverte de poudre en cours de traitement, ainsi que l'encrassement correspondant, ce qui permet un fonctionnement en continu du dispositif.
Patent CA-2254427-A1 (CA)
Inventor: EBERTS WILLIAM GEORGE
IPC: H01H71/50
Filed: 1998-11-18
Abstract: The outside poles of a three pole circuit breaker are each provided with a blow open latch which includes a latch hook having an open slot forming jaws pivotally mounted on the contact arm.  A torsion spring biases the jaws to a cocked position in which they are aligned for engagement with a fixed stop member toward which the contact arm rotates as it blows open in response to the magnetic repulsion forces generated by a short circuit.  As the jaws engage the stop member,  the latch hook is rotated to mechanically latch the latch hook on the stop member thereby preventing rebound and reclosing of the contacts.  A leaf spring mounted on the crossbar holds the latch hook in mechanical engagement with the stop member.  As the circuit breaker responds to the overcurrent condition and rotates the crossbar, the leaf spring disengages from the latch hook so that the torsion spring can rotate the latch hook back to the cocked position for disengagement from the stop member upon reclosing of the circuit breaker.
Patent CA-2255028-A1 (CA)
Title: Procede pour reduire le taux de polluants contenus dans un courant gazeux et dispositif approprie pour mettre ledit procede en oeuvre
Inventor: SCHREY GUENTER
IPC: C10K1/10
Filed: 1997-04-28
Abstract: L'invention vise à mettre au point un procédé permettant de traiter des eaux de lavage provenant d'opérations de lavage de gaz de processus industriels sidérurgiques, selon lequel les eaux de lavage sont mises en contact intime avec le gaz du processus, puis mises en circulation après extraction des solides. Selon ce procédé, un courant partiel des eaux de lavage est soustrait, mélangé à de l'eau fraîche et est utilisé pour le lavage post-traitement du gaz du processus. Selon ce procédé, l'eau de lavage requise pour les appareils laveurs (3a, 3b, 3c) est soustraite du réservoir (1) la contenant. Les fractions insolubles contenues dans l'eau de lavage chargée en substances sont éliminées dans le bassin de décantation (4) et l'eau de lavage qui résulte de cette opération est introduite dans le réservoir (1) contenant l'eau de lavage. L'eau de lavage requise pour l'appareil laveur post-traitement (6) est soutirée du réservoir (1) la contenant et est mélangée à de l'eau fraîche par l'intermédiaire de la conduite d'eau fraîche. Les solides contenus dans l'eau de lavage requise pour l'appareil laveur post-traitement (6) sont également éliminés dans le bassin de décantation (4) et l'eau de lavage qui résultant de cette opération est mise en circulation après introduction dans le réservoir contenant l'eau de lavage (1).
Patent CA-2256943-A1 (CA)
Title: General purpose structure of an analytical element and its application for analyte determination
Inventor: FISCHER THOMAS
IPC: C12Q1/68
Filed: 1998-12-17
Abstract: The invention concerns an analytical element for the determination of an analyte containing in or on material which enables liquid transport between zones, a sample application zone and a detection zone located downstream thereof, wherein the detection zone contains a partner 1 of a specific binding pair 1 immobilized in such a manner that it is able to bind to partner 2 of the specific binding pair 1 which is not the analyte when it contacts it, wherein a labelled partner 1 of a specific binding pair 2 is present upstream of the detection zone impregnated on a material such that it can be detached by liquid and is able to bind to partner 2 of the specific binding pair 2 which is not the analyte when this contacts it as well as a method for the determination of an analyte using this analytical element.
Patent CA-2257185-A1 (CA)
Inventor: SHIMIZU SATORU
IPC: H05K3/38
Filed: 1996-12-26
Abstract: Cette invention se rapporte à une solution de dépôt de cuivre sans électrolyse qui contient des ions de cuivre, un agent complexant, un composé d'acide hypophosphoreux comme agent réducteur et un catalyseur métallique initiateur de réduction, qui contient en outre des ions de lithium soit seuls soit combinés avec un tensioactif au polyoxyéthylène; à un procédé pour le dépôt de cuivre sans électrolyse à l'aide de cette solution; et à des produits ainsi recouverts obtenus par ce procédé. L'utilisation de cette solution permet de former un dépôt de cuivre uniforme en aiguille sur un substrat, et, par conséquent, cette solution est utile pour améliorer la liaison entre divers métaux et diverses résines, en particulier la liaison entre des circuits conducteurs et des résines dans des cartes à circuits imprimés multicouches ou la liaison entre des feuilles de cuivre et des résines dans des stratifiés à placage au cuivre.
Patent CA-2258167-A1 (CA)
Title: Filter cloth, filter method and filtering device for liquid filtration
Inventor: SEYFRIED CARL FRANZ
IPC: B01D33/21
Filed: 1997-06-19
Abstract: A filter cloth for liquid filtration is made as a long-pile fabric, the pile threads 21 of which lie on the flow side and are displaced against the supporting fabric during the filtration and form a deep filter, which at the time of back washing they are straightened by the back washing and release the dirt particles. The back washing is performed preferably by means of a suction bar 13, which at the same time acts mechanically on the pile threads, in order to promote an abrupt straightening of the pile threads at the time of back washing and the flattening of the pile threads after the back washing.
Patent CA-2258489-A1 (CA)
Title: High-throughput screening assay systems in microscale fluidic devices
Inventor: PARCE JOHN WALLACE
IPC: G01N27/27
Filed: 1997-06-24
Abstract: The present invention provides microfluidic devices and methods that are useful for performing high-throughput screening assays. In particular, the devices and methods of the invention are useful in screening large numbers of different compounds for their effects on a variety of chemical, and preferably, biochemical systems. The device includes a series of channels (110, 112), and optional reagent channel (114), fabricated into the surface of the substrate. At least one of these channels will typically have very small cross-sectional dimensions, e.g. in the range of from about 0.1 hem to about 500 µm. The device also includes reservoirs (104, 106 and 108), disposed and fluidly connected at the ends of the channels (110 and 114). As shown, sample channel (112) is used to introduce the plurality of different test compounds into the device. As such, this channel will generally be fluidly connected to a source of large numbers of separate test compounds that will be individually introduced into the sample channel (112) and subsequently into channel (110).
Patent CA-2259777-A1 (CA)
Inventor: ANZAWA OSAMU
IPC: H01L31/068
Filed: 1999-01-19
Abstract: A substrate for forming a high-strength thin semiconductor element includes a thick portion and a thin portion in the front surface or in both front and rear surfaces of the substrate, the thick portion maintaining a thickness of the substrate as initially used or having a thickness that gives a sufficient strength to the substrate, the thin portion being formed by selectively removing a portion of the substrate other than the thick portion and having a thickness smaller than the thick portion and larger than or equal to 20 µm.
Patent CA-2261258-A1 (CA)
Title: A flux formulation
Inventor: GAO GUILIAN
IPC: B23K35/36
Filed: 1997-07-21
Abstract: A flux formulation without a surfactant for use in the assembly of electronic circuit boards as a no-clean formulation. The formulation comprises a flux solution having a fluxing agent consisting essentially of one or more weak organic acids and a solvent consisting essentially of water. The flux solution serves to transport the fluxing agent before deposition thereof upon a soldering site for reliability improvement engendered by a lack of hygroscopic residue and for avoidance of environmental degradation engendered by a lack of volatile organic chemicals (VOCs). The method comprises the step of heating the flux solution and dispersing it as a fine spray.
Patent CA-2261993-A1 (CA)
Inventor: HEATH DEREK E
IPC: A61C5/42
Filed: 1997-07-24
Abstract: A method of fabricating an endodontic instrument (10), wherein a cylindrical metal blank (B) is first cold forged in a rotary swaging machine (26) to form a tapered end portion (35). Thereafter, the tapered end portion (35) is machined to form at least one helical flute (21, 22) along its length, with the helical flute (21, 22) defining a cutting edge (24) along each side edge thereof. The combination of the cold forging and machining operations has been found to produce instruments which are stronger than instruments produced by conventional practices. Also, the instruments may be produced more quickly and thus at less expense, and they may be produced without loss of raw material.
Patent CA-2262091-A1 (CA)
Title: Pattern recognition
Inventor: RINGLAND SIMON PATRICK ALEXAND
IPC: G10L15/32
Filed: 1997-07-04
Abstract: A method is provided for deriving recognition reference data for use in pattern recognition and, in particular, speech recognition. According to the invention, recognition reference data are provided comprising a first part representing valid items of speech or non-speech sounds, and a second part derived from those portions of an input signal known to give rise to recognition errors. In particular, reference data are provided to model insertion errors and substitution errors known to occur in recognition results.
Patent CA-2262257-A1 (CA)
Title: Photoimageable compositions having improved stripping properties in aqueous alkaline solutions
Inventor: KAUTZ RANDALL W
IPC: G03F7/004
Filed: 1999-02-15
Abstract: A negative-acting photoimageable composition useful as a photoresist comprises an acid-functional binder polymer, a photopolymerizable component, and a photoinitiator chemical system, in which the binder polymer has a multi-modal molecular weight distribution used to promote faster photoresist stripping times and a smaller stripped particle size. The combination of faster stripping times and smaller stripped particle size allows for fully aqueous, environmentally friendly, stripping of the photoresist from overplated circuit boards.
Patent CA-2262770-A1 (CA)
Title: Biodegradation of the gasoline oxygenates
Inventor: DEFLAUN MARY F
IPC: A62D3/00
Filed: 1997-07-10
Abstract: A method for degrading an undesirable ether-based environmental contaminant by contacting the ether with a propane-oxidizing microorganism or with an isopropanol-oxidizing microorganism to convert the ether to innocuous compounds which are environmentally acceptable, including treating the ether-based contaminants in situ or removing them from the contaminated site for treatment in a bioreactor, examples of the ether-based contaminants being tertiary butyl ethers of the type utilized as gasoline oxygenates, for example, methyl tert-butyl ether, ethyl tent-butyl ether, and methyl tert-amyl ether, and also ether solvents, for example, tetrahydrofuran, and including also means for monitoring the degradation of methyl tert-butyl ether by evaluating the treated contaminated media for degradative intermediates, for example, tert-butyl alcohol and 2-hydroxy isobutyric acid, and further including contacting the ether with a microorganism that is effective in oxidizing 2-hydroxy-isobutyric acid.
Patent CA-2263873-A1 (CA)
Inventor: KITTLESON RICHARD L
IPC: A23L29/00
Filed: 1997-09-02
Abstract: Savory cheese fillings are described which can be frozen and still melt smoothly upon reheating, without fat separation, and which provide the creamy taste, texture, mouth feel, and other organoleptic properties of cheese.  The filling may be used in a wide variety of food products.      The fillings comprise cheese, fat, a humectant and an emulsion stabilizer and have defined viscosities/water activity.
Patent CA-2264383-A1 (CA)
Title: Low toxicity insecticides
Inventor: KORUNIC ZLATKO
IPC: A01N59/00
Filed: 1999-03-03
Abstract: Insecticide formulations incorporating oil, diatomaceous earth (DE) includes an organophosphate insecticide are synergystically efficacious at reduced application rates of organophosphate insecticide. One formulation includes approximately 75% DE, 21% oil and not more than 3% organophosphate insecticide. Another formulation incorporates oil, DE, an organophosphat insecticide, a pyrethroid insecticide and an synergistic compond co-operating with the pyrethroid insecticide in an insecticidally efficacious formulation including approximately 75% DE, 21% oil, not more that 1% organophosphate insecticide and not more than 0.05% pyrethroid insecticide.
Patent CA-2266411-A1 (CA)
Inventor: BENTLEY JULIE L
IPC: G01C3/08
Filed: 1998-08-18
Abstract: Portable, lightweight, compact, eye-safe, battery-operated laser range finder and digital compass assembly (10), mountable onto a personal weapon or aiming device, to accurately measure distance, azimuth and elevation angle of a target and increase the accuracy and probability of the hit. The laser range finder and digital compass assembly (10) has a laser transmitter (8) for transmitting an output laser beam having a wavelength in the range of 1.0 to 1.1 microns, an OPO converter (36) for converting the output laser beam to an eye-safe range between 1.5 and 2.2 microns whose time of travel to and from an external target is measured to obtain the range, an expander for expanding the converted output laser beam, a detector (28) for receiving a returned laser beam reflected from the external target and for producing a signal related to the time interval between the output pump beam and the returned pump beam, a digital compass assembly (4), a microprocessor (6), and a device for boresighting the expander with the external target, operatively connected to the laser transmitter (8). The device is placed in a housing (13) adapted for mounting the device onto the personal weapon or aiming device. The laser transmitter (18) is a flashlamp-pumped, battery-operated pump laser.