baber/WOPTO huggingface dataset:
Patent CA-2179465-A1 (CA)
Inventor: FELDT DANIEL CHARLES
IPC: H03F1/02
Filed: 1996-06-19
Abstract: An output stage (418) for an operational amplifier (403) powered by a first supply voltage rail (102) and a second supply voltage rail (104) includes a buffer (100) and a current booster (500) for amplifying an input voltage (105) into a low impedance output signal (117 and 520). The buffer (100) amplifies the input voltage (105) into the amplified output signal (117 and 520) when the input voltage (105) is within a buffer voltage range (210), the buffer voltage range (210) contained within a maximum voltage range (208) defined by a voltage difference in the first supply voltage rail (102) and the second supply voltage rail (104). The current booster (500) assists the buffer (100) in amplifying the input voltage (105) into the output signal (117 and 520) when the input voltage (105) is outside of the buffer voltage range (210) but within the maximum voltage range (208).
Patent CA-2180686-A1 (CA)
Inventor: NICCUM PHILLIP K
IPC: B04C5/26
Filed: 1996-07-08
Abstract: A pressurized closed-cyclone catalyst disengaging apparatus for use in an FCC unit. A closed-cyclone apparatus of the present invention independently pressurized in the absence of a disengager vessel has a line for venting stripping steam and hydrocarbon vapor from a catalyst stripping stage to a catalyst disengaging stage for rapidly disengaging catalyst particles from an FCC reaction hydrocarbon effluent.
Patent CA-2182436-A1 (CA)
Inventor: THIELE GEORG
IPC: B01J29/89
Filed: 1996-07-31
Abstract: A process for the production of epoxides from olefins and hydrogen peroxide in the presence as catalyst of a zeolite containing titanium silicalite-1 (TS1) or titanium silicalite-2 (TS2), in which neutral or acidic salts are added to the catalyst before or during the reaction.
Patent CA-2182650-A1 (CA)
Title: Telecommunications reward method
Inventor: BURDON DOUGLAS
IPC: H04M15/10
Filed: 1996-08-02
Abstract: A telecommunications reward method provides telecommunications servicesrewards for purchases made by members. The reward method frequently updates the member's reward profiles so that rewards are virtually instantaneous. The rewards consist of telecommunications services, for example long-distance call minutes or cellular telephone air time, and are easily redeemed. Apparatus for implementing the method includes a high-level control centre and a database management system.
Patent CA-2187531-A1 (CA)
Inventor: HORWELL DAVID CHRISTOPHER
IPC: A61P1/00
Filed: 1995-05-18
Abstract: La présente invention concerne un composé représenté par la formule générale (I) ou l'un de ses sels pharmaceutiquement acceptables. Dans cette formule, R?1¿ représente phényle, pyridine, thiophène, furane, naphthalène, indole, benzofurane ou benzothiophène, aucun n'étant substitué, ou tous étant mono-, bi-, ou trisubstitué par alkyle, hydroxy, alcoxy, nitro, halogène, amino ou trifluorométhyle; X représente soit OR?2¿ où R?2¿ est hydrogène, (CH¿2?)¿n?NR?3¿R?4¿, ou un précurseur de fraction, soit NH¿2?, un précurseur de fraction NHCO, NHCO(CH¿2?)¿n?NR?3¿R?4¿, NR?3¿R?4¿, ou (CH¿2?)¿n?NR?3¿R?4¿ dans lequel n est un entier valant de 0 à 5, R?3¿ et R?4¿ provenant chacun indépendamment du groupe constitué par hydrogène et méthyle, ou bien R?3¿ et R?4¿ formant un cycle avec le N auquel ils sont liés; m est un entier valant de 1 à 6; Y représente CH, CCH3, CF, CCl, CBr, CSCH¿3? ou N. Plus spécifiquement, l'invention concerne les antagonistes de la tachykinine. Les composés sont des alcools, des amines et des promédicaments non peptidiques présentant un intérêt pour le traitement des troubles dont les médiateurs sont les tachykinines. Les troubles concernés sont d'ordre respiratoire, inflammatoire, gastro-intestinal, ophtalmique, allergique, algique, vasculaire, et les maladies du système nerveux central ainsi que les migraines. L'invention concerne également des procédés de préparation de ces composés ainsi que de nouveaux intermédiaires. Ces composés devraient être particulièrement utiles contre l'asthme, la sclérose en plaques, la polyarthrite rhumatoïde, pour la gestion de la douleur, contre les migraines et comme agents antivomitifs.
Patent CA-2188221-A1 (CA)
Title: Solid microbicide formulation
Inventor: EL A MMA BEVERLY JEAN
IPC: A01N43/80
Filed: 1996-10-18
Abstract: Microbidal compositions useful for preventing the growth of microorganisms at interfaces in oil-water systems comprising one or more microbicides and one or more oil-soluble polymers, the compositions having a specific gravity greater than the specific gravity of the oil phase to which they are introduced but less than 1.0, are disclosed.
Patent CA-2190442-A1 (CA)
Inventor: SJOEBLOM TORBJOERN
IPC: F04D29/62
Filed: 1996-11-15
Abstract: The invention concerns a device for mounting and keeping together parts in a submersible pump unit. Two groups of screw joins (15) and (16) respectively are alternatively arranged around the periphery of the pump unit, the first group of said joints (15) connectings the stator housing (8) and the seal housing (4) via a ring (13), while the other group of joints (16) connect said ring (13), said pump housing (5) and a cooling jacket (10) surrounding said stator housing (8).
Patent CA-2190634-A1 (CA)
Inventor: SUBRAYAN RAMACHANDRAN P
IPC: C08G18/72
Filed: 1996-04-16
Abstract: The present invention is directed to a polymeric vehicle, a formulatedd coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a polyol, an isocyanate compound and a phenolic ester alcohol having at least one aliphatic hydroxyl group and at least one phenolic hydroxyl group.
Patent CA-2192111-A1 (CA)
Title: Degradable polymers and polymer products
Inventor: BONO PIERRE
IPC: C08L23/04
Filed: 1995-05-31
Abstract: This invention provides for degradable plastic polymeric blends and methods of making same. The blends comprise a polymeric material and an organosol lignin. The invention also provides for articles of manufacture.
Patent CA-2192146-A1 (CA)
Inventor: BROENNUM THOMAS
IPC: C08G18/48
Filed: 1996-12-05
Abstract: Polyether polyol having an aromaticity in the range of from 2% to 35%, an average nominal functionality (Fn) in the range of from 2.0 to 4.5 and a hydroxyl value in the range of from 390 to 650 mg KOH/g, whereby the aromatic carbon atoms are contained in structural moieties of the general formula (see formula I) wherein both R1 groups independently represent hydrogen or a C1-C3 alkyl group; both R2 groups independently represent a C1-C3 alkyl group; and n is an integer of from 0 to 3.      Process for the preparation of the above polyether polyol, which process comprises reacting an alkylene oxide with a polyhydric alcohol blend comprising a diphenylol alkane precursor of the above indicated structural moiety and at least one aliphatic or alicyclic polyhydric alcohol having a functionality of at least 2Ø      Polyether polyol blend having an aromaticity in the range of from 2 to 10% and a Fn in the range of from 2.5 to 5.0 eq/mole, which blend comprises the above polyether polyol and one or more aliphatic or alicyclic polyether polyols having a Fn of at least 2.5.     Rigid polyurethane foam having a total aromaticity in the range of from 35% to 50%, obtainable by foaming a composition comprising the above polyol or polyol blend having an aromaticity from 2 to 10% and a Fn from 2.5 to 5.0 eq/mole, and an aromatic polyisocyanate in such amount that the isocyanate index is from 100 to 150, whereby the polyol reactant accounts for from 1 and 10% of the total aromaticity of the rigid polyurethane foam.
Patent CA-2193081-A1 (CA)
Title: Method of isolating an antigene preparation
Inventor: NOTHACKER KLAUS-DIETER
IPC: G01N33/576
Filed: 1995-06-22
Abstract: The present invention relates to a process for prepar-ing antigens of viral origin from infected animal cells and to the use thereof in enzyme-linked immunosorbent assays (ELISAs).
Patent CA-2193469-A1 (CA)
Inventor: VILLARS WILLIAM A
IPC: C11D1/68
Filed: 1996-12-19
Abstract: A cleansing bar includes (a) from about 20 % to about 35 %, by weight of all ingredients in the cleansing bar, a synthetic detergent, sodium cocoyl isethionate, (b) from about 6 % to about 11 %, by weight of all ingredients in the cleansing bar, cetyl alcohol, wherein a mole to mole ratio of (a) to (b) is at least about 2.2:1, (c) at least about 30 %, by weight of all ingredients in the cleansing bar, processed grain, (d) a buffer for adjusting the pH of the cleansing bar to be in a range from about 4.0 to about 5.5, and (e) from about 9 % to about 20 %, by weight of all ingredients in the cleansing bar, water. Also disclosed are methods of making such a cleansing bar.
Patent CA-2193617-A1 (CA)
Title: Silicone compositions curable in presence of moisture
Inventor: KOERNER DIETER
IPC: C08G77/388
Filed: 1996-12-20
Abstract: Compositions and methods of making them are described and claimed which comprise a polymeric material having not less than two groups bonded to silicon which are hydroxyl or hydrolysable groups, a silane cross-linking agent having at least two oximo groups which are reactive with said polymeric material in presence of moisture to release an oxime condensation by-product and a component effective to control emission of volatile oxime compounds from the composition as it cures.  The component effective to control emission of volatile oxime compounds from the composition as it cures is preferably an organic isocyanate having at least one isocyanate group and is preferably present in a stoichiometric ratio with the proportion of condensation by-product to be evolved.  The polymeric material is preferably according to the general formula X-A-X where A represents a polyoxyalkylene chain or a polydiorgano-siloxane chain and X represents a hydroxyl or hydrolysable group selected from -R"2SiOH, -R"Si (OR5)2, -Si (OR5)3, -R"2SiOR5 or -R"2SiR" 'SiR"p (OR5) 3-p where R" represents an alkyl or fluoroalkyl group, and is preferably methyl, R"' is a divalent hydrocarbon group which may be interrupted by one or more siloxane spacers having up to six silicon atoms, R5 represents an alkyl or oxyalkyl group in which the alkyl groups have up to 6 carbon atoms and p has the value 0, 1 or 2.
Patent CA-2194187-A1 (CA)
Title: Linerless label web, method of making same and method of cleaning and using a print head
Inventor: KESSLER JOHN R
IPC: B41J29/17
Filed: 1996-12-30
Abstract: There is disclosed a release-coated linerless label web which includes a cleaner and a printable portion. The web can be threaded into contact with a thermal print head and the cleaner can clean the print head and thereafter the web is advanced to printed on a series of labels. The cleaner can be comprised in one embodiment of a plurality of lines of perforation cuts which roughen the surface of the web sufficiently to clean the print head upon many contact of the web with the print head. In another embodiment the cleaner is provided by embossments. In yet another embodiment the cleaner is provided by straining the web. Methods of making and using the web are also disclosed.
Patent CA-2198870-A1 (CA)
Inventor: MANDACI SEVNUR
IPC: C12N15/09
Filed: 1995-08-30
Abstract: La présente invention concerne une séquence de promoteur végétal Blec correspondant au numéro d'identification de séquence 1. L'invention concerne également un procédé permettant de transformer des plantes au moyen d'un produit d'assemblage promoteur Blec-gène. Sont également décrits des cellules comprenant un produit d'assemblage promoteur Blec-gène, des plasmides et des vecteurs comprenant un produit d'assemblage promoteur Blec-gène et les produits d'assemblage eux-mêmes, comprenant un promoteur Blec et un gène. L'invention concerne également un extrait végétal comprenant toute la séquence de promoteur Blec, ou une partie de celle-ci, et un gène dépendant dudit promoteur, ainsi qu'un procédé de transcription d'acides nucléiques comprenant un extrait pourvu de toute la séquence de promoteur Blec, ou d'une partie de celle-ci, et d'un gène dépendant dudit promoteur.
Patent CA-2204955-A1 (CA)
Title: Weld root closure method for friction stir welds
Inventor: COLLIGAN KEVIN J
IPC: B23K37/06
Filed: 1997-05-09
Abstract: A method of root closure of friction stir welds in all types of stir weldable materials, especially difficult to weld materials, such as non-extrudable aluminum alloy 2024, 2014, 2090 and 7075. The method includes providing a backing device that has a recess, such as a groove or channel, sized to receive the tip of the pin of the welding tool and to contain the bead of the weld being formed. The workpiece rests on the backing device, with the proposed weld line aligned with the recess.  Thus, as the weld is formed, material is extruded into the recess, completing closure of the weld root, and forming a small bead on the rear side of the workpiece.  Optionally, this bead may be removed by a machining process. In one embodiment, the backing device is a plate with a channel machined in its surface so that the workpiece may be temporarily affixed to the plate, with weld line aligned with the channel, for welding. In an alternative embodiment, the backing device is a roller, mounted beneath the rotating pin of the friction stir welding tool, with a circumferential grove on its exterior surface, sized to receive the pin tip and contain the weld bead as the weld is being formed.
Patent CA-2206531-A1 (CA)
Title: Manufacturing ceramic articles
Inventor: BROMLEY ANTHONY PHILIP
IPC: C04B35/51
Filed: 1995-12-14
Abstract: A method of manufacturing a ceramic article including the steps of forming a body of particulate material, compressing the body at its ends and sintering the body, the body being formed, prior to compression, of particulate materials layers of different bulk particle density. The ceramic article may comprise a ceramic pellet having a substantially cylindrical shape e.g., a nuclear fuel pellet.
Patent CA-2209483-A1 (CA)
Title: Compositions of polytetramethylene ether glycols and polyoxyalkylene polyether polyols having a low degree of unsaturation
Inventor: REICHEL CURTIS J
IPC: C08G18/48
Filed: 1997-07-09
Abstract: Thus, there is provided according to the present invention polyol compositions comprising (A) a polytetramethylene ether glycol, and (B) a trifunctional active hydrogen compound-initiated polyoxyalkylene polyether polyol having a degree of unsaturation of not greater than 0.04 milliequivalents per gram of said polyether polyol.
Patent CA-2210067-A1 (CA)
Title: Electronic chronometry device
Inventor: BOVAY JEAN-PIERRE
IPC: G04F10/04
Filed: 1997-07-10
Abstract: The electronic chronometry device (D) comprises an acquisition cell (2) arranged to receive time data (6) coming from at least one time events measurement sensor (8), a storing unit (9) for storing said time data (6), and a processing unit (4) of said time data (6) and associated to said acquisition cell (2).      This device is characterized in that said storing unit (9) is associated to an interface (1) which is arranged so as to allow said processing unit (4) to access said storing unit (9) and to read certain of said time data (6) stored in said storing unit (9) without allowing a modification of said storing unit (9) by said processing unit (4).
Patent CA-2211624-A1 (CA)
Inventor: TREPANIER GILLES
IPC: H04M3/42
Filed: 1996-11-29
Abstract: A telephone network comprises at least one switching unit having a plurality of subscriber access lines each having an associated calling number, and a storage device storing a plurality of listings of destination numbers. Each listing is associated with a respective one of the calling numbers and defines a personalized local calling area for that particular calling number. The switching unit detects a destination number dialled by a caller setting up a call, accesses the personalized local calling area listing for that calling number, and compares the detected destination number with the selected listing. To determine whether the call is local or long distance. Provision may be made for the subscriber to create the personalized calling area by adding entries to, or deleting entries from, a standard local calling area common to a group of subscribers. The network may provide for creation or modification of the subscriber's listing at the central storage unit and transfer of a copy to the appropriate local storage unit associated with the subscriber's switch.
Patent CA-2214369-A1 (CA)
Title: Mileage trapper
Inventor: WHYNOT LINDA M C
IPC: G01D9/00
Filed: 1997-10-27
Abstract: Travel logs are needed to prove logged kilometers or mileage both for businessesand employees as a record of reasonable proof. This is usually tried to be accomplished by remembering to write down the starting kilometers or mileage on a vehicle along with the ending kilometers or mileage when used for business purposes. This information, also, the clients name and address is recorded on paper with pencil or pen and than calculations must be made. The trucking industry has a similar need in that a log must be kept of the length of time logged in travel in any one day. This log must be kept both for safety reasons and for compensation reasons.   Both of these logs are kept manually to-date with no reasonable auditable trail attached. The logs are used by business, government and businesspersons so correct expenses are paid and recorded and also to police maximum travel hours by any one truck driver in any one day. This has been on a type of honor system to this point with manual records being accepted but notices of excess claims have been climbing as of recently.   The Mileage Trapper is the solution both for the tidiness of keeping such records and a reasonable auditable trail for verification of correct information. The Mileage Trappers principal uses will be as a business travel log for expense reports, a verifiable log for government revenue departments, and a verifiable log for the trucking industry both transportation and safety divisions.
Patent CA-2217532-A1 (CA)
Title: Process for driving the exciting coil of an electromagnetically driven reciprocating piston pump
Inventor: BARTSCH KNUT
IPC: H01F7/18
Filed: 1996-04-24
Abstract: A process is disclosed for driving the exciting coil of an electromagnetically driven reciprocating piston pump used as a fuel injection device. The exciting coil is excited by high frequency pulses generated by a current regulating circuit and each pulse causes an abrupt move of the armature driven by the exciting coil. The current regulating circuit regulates the exciting current that flows through the exciting coil depending on a current set value curve.  Each pulse of the current set value curve has a progressively rising flank to which corresponds a progressively rising flank of the exciting current pulse in the exciting coil. The current set value curve is controlled in such a way that the exciting current does not change faster than the mutual inductance-limited, maximum current variation possible at the minimum voltage available at the exciting coil.
Patent CA-2217902-A1 (CA)
Inventor: PAOLONI ROBERTA
IPC: A61K31/19
Filed: 1997-10-08
Abstract: Use of gammahydroxybutyrric acid for the preparation of pharmaceutical compositions for  the treatment of demential syndromes.
Patent CA-2220431-A1 (CA)
Title: The use of bis(difluoromethyl)ether as a fire extinguishant
Inventor: O'NEILL GERALD J
IPC: A62D1/00
Filed: 1996-05-31
Abstract: Bis(difluoromethyl)ether as a fire extinguishant. Bis(difluoromethyl)ether is non-flammable, non-chlorofluorocarbon containing compound having an atmospheric life of only 2,8 years, and has zero ozone depletion potential.
Patent CA-2221915-A1 (CA)
Title: Filter system for removal of particles from hydrocarbonfluids
Inventor: NASH STANLEY G
IPC: B03C5/02
Filed: 1997-11-24
Abstract: An electrostatic filter removes particles from non-electrically-conductive fluids.  A pair of electrical conductors extend through a filter housing for providing one of a plurality of D.C. voltage levels selected to control electrical current consumption within the filter.  A plurality of identical perforated, electrically conductive plates are connected to individual ones of the conductors by reversing the orientation of the plate.  Successive plates are alternately positive or negative.  Porous foam filter pads are located between each pair of plates.  A permanent magnet is located in the foam pads which are between the positive to negative, but not between negative to positive, conductive plates, determined with respect to the direction of the fluid flow within the filter housing.  The permanent magnetic field interacts with a corona formed around plates of one polarity in order to agitate the particles which then become entrapped within the porous foam filter pads.
Patent CA-2222874-A1 (CA)
Title: Low cost wide area network for data communication with remote or mobile field units
Inventor: NELSON RODNEY
IPC: H04W84/02
Filed: 1996-05-22
Abstract: A two-way communications system that provides ubiquitous wireless data communication services, such as throughout the continental United States, by using a network of only a few, widely distributed radio base station (RBS) sites (60a, 60b) and the existing paging network infrastructure (40a, 40b).  The paging network infrastructure (40a, 40b) is used as an outbound link to request data from the remote field units (50a, 50b). The outbound page message indicates a time and frequency at which the RBSs (60a, 60b) can expect to receive data from the field units (50a, 50b). A network hub or message operations center (MOC) (32) coordinates the operation of the paging systems and RBSs (60a, 60b) from a central location. For example, the MOC (32) determines an available HF frequency and time for a particular field unit (50a) to transmit, and then issues the request for data to the field unit (50a) using the existing paging network infrastructure (40a, 40b). The field units (50a, 50b) report remote data such as a geoposition or other sensor data when requested to do so.
Patent CA-2223626-A1 (CA)
Inventor: GUNNESKOV OLE
IPC: G01N22/00
Filed: 1996-05-29
Abstract: Procédé permettant d'établir le débit-masse de matière en grains s'écoulant à travers un canal au moyen d'ondes électromagnétiques, de préférence, dans la zone hyperfréquence. Cette invention permet de mesurer soit l'affaiblissement soit le déphasage ou les deux et éventuellement la réflexion. Une fois que l'on connaît la réflexion et l'absorption, on peut déterminer le type de grains concernés, car le rapport de ces grandeurs constitue le trait distinctif de ces différents types. Lorsqu'on mesure, en particulier, des graines oléagineuses, qui sont susceptibles d'avoir un effet sur la permittivité relative, on a avantage à mesurer la phase du signal transmis étant donné que le déphasage est sensiblement proportionnel à l'écoulement de ces grains.
Patent CA-2225376-A1 (CA)
Title: Method of combustion with low acoustics
Inventor: SNYDER TIMOTHY S
IPC: F23R3/34
Filed: 1997-12-19
Abstract: A method of reducing pressure fluctuations in the combustor of a gas turbine engine resulting from the combustion of fuel and air therein comprises combusting a fuel/air mixture in a combustor downstream of the exit plane of a fuel nozzle assembly such that such recirculation zones generated by the fuel nozzle assembly are in spaced relation to the exit plane and the combustion products are isolated from the fuel and air in the mixing zone at all operating conditions of the engine.