baber/WOPTO huggingface dataset:
Patent CA-2239803-A1 (CA)
Inventor: CORNELIUS WAYNE
IPC: G01R33/38
Filed: 1998-06-26
Abstract: An MRI apparatus for imaging an object includes a base, a pair of magnets, and a transceiver unit. The magnets are mounted on the base with the North pole face of one magnet facing the South pole face of the other magnet. The North pole face and the South pole face are each substantially arcuate, and are positioned on the base to establish a magnetic field in a substantially U-shaped region between the North pole face and the South pole face. Importantly, imaging is performed in a nonhomogeneous portion of this magnetic field. This portion is characterized by substantially parallel surfaces having mutually different constant magnetic field magnitudes. Importantly, the space between the magnets at the top of the U-shaped region creates an access into the U-shaped region. To image an object, the object is placed through the access and into the portion of the magnetic field having surfaces of constant magnetic field magnitude. The transceiver unit is then used to selectively irradiate each surface in the magnetic field with electromagnetic radiation to image the object over each surface.
Patent CA-2240133-A1 (CA)
Title: Process for the preparation of gamma-butyrolactone and the use thereof
Inventor: BERGFELD MANFRED JOSEF
IPC: C07D315/00
Filed: 1996-12-07
Abstract: The invention relates to a process for the preparation of gamma-butyrolactone by catalytic hydrogenation of maleic acid anhydride, succinic acid anhydride or the acids thereof in the vapour phase in the presence of catalysts based on copper oxide and aluminium oxide after reduction. Said process is characterised in that a catalyst used to carry out the reaction consists of from 50 to 95 % by weight of copper oxide, 3 to 30 % by weight of aluminium oxide and 0 to 25 % by weight of a binder. The catalyst preferably consists of from 83.5 to 85.5 % by weight of copper oxide, 9-11 % by weight of aluminium oxide and 4.5 to 6.5 % by weight of graphite. The reaction mixture obtained can be used, without the removal of water, directly for other applications, e.g. for the preparation of N-methylpyrrolidone.
Patent CA-2240198-A1 (CA)
Inventor: HUEMPFNER ROLAND
IPC: H02J7/00
Filed: 1996-11-29
Abstract: The invention relates to a no-break power supply (2) with a line-side commutation reactor (L10), an intermediate voltage link converter (4) with its control device (16), an output filter (14) consisting of a transformer (T20) with a high leakage inductance and filter capacitors (C30), a static bypass switch (12) with its control device (18) and a manual by-pass switch (Q50). According to the invention, the converter (4) is a drive technology frequency converter (32), upstream of which there is an input filter (34) and the d.c. bar terminals (C, D) of which are connected to a battery coupling device (42). It is thus possible with commercially available drive technology components and no-break power supply-specific components to construct a no-break power supply making use of a technical and economical combination from drive technology.
Patent CA-2241549-A1 (CA)
Title: Waveform synthesis
Inventor: BANBROOK MICHAEL
IPC: G10L13/07
Filed: 1997-01-09
Abstract: A method of synthesis of a voiced speech sound comprising calculating each new output value from the previous output value using data modelling the evolution, over a short time interval, of the voiced speech sound to be synthesised.
Patent CA-2245595-A1 (CA)
Title: Painting tool
Inventor: ER POH LEONG
IPC: B05C17/025
Filed: 1997-02-04
Abstract: The present invention is a paint roller incorporating an internal reser-voir (5) disposed within the interior space of the roller for receiving and dispensing paint. The interior of the roller communicates with the external surface of the roller over a plurality of slits (3) in the roller. An appli-cator is laid over the external surface of the roller. Paint from the internal reservoir is dispensed evenly and au-tomatically over the slits (3) and the applicators to the target surface. Dis-posed within the internal reservoir of the roller is a partition (4) for stor-ing residue paint when the roller is rested in a vertical or quasi-vertical position. As the centre of gravity of the reservoir is as close as possible to the longitudinal axis of the roller, the user applies paint to target sur-face with maximum maneuverability and real feel of a paint roller.
Patent CA-2248119-A1 (CA)
Title: Novel apt
Inventor: HOLMES DAVID JOHN
IPC: A61K48/00
Filed: 1998-10-21
Abstract: The invention provides apt polypeptide and DNA (RNA) encoding apt polypeptides and methods for producing such polypeptides by recombinant techniques Also provided are methods for utilizing apt polypeptides to screen for antibacterial compounds.
Patent CA-2251229-A1 (CA)
Title: A method and a device for deactivating an alarm element
Inventor: SBRINK LEIF
IPC: G08B13/24
Filed: 1997-04-10
Abstract: A method to deactivate a burglar proof system alarm element (1), the alarm element being adapted to be detected in an alternating magnetic field (2) in a scanning area (3) in the system, in that by means of a signal generator (4) provided in the alarm element it emits detectable signals (5) in said alternating field including a magnetization of a deactivator (4') thereby preventing the emission of said detectable signals. The method is especially characterized in that the deactivation of the alarm element (1) is achieved by means of a magnetizing impulse (11) directly in connection with a detection of the alarm element, the deactivation then being achieved by means of a magnetic field being essentially stronger than the magnetic field during the detection and with essentially the same direction. The invention is also related to a device for deactivation.
Patent CA-2253105-A1 (CA)
Inventor: ZORZELLA PETER
IPC: H04M19/02
Filed: 1998-11-06
Abstract: A system within a PC server cabinet for receiving an externally supplied loop feed voltage (-48 VDC) and generating a ringing voltage (75 VAC) from the loop f eed voltage. For universal applicability, the ringing voltage generator is preferabl y located in a 5.25 inch standard disk-drive housing of the cabinet, allowing it to fit in to any PC. All required telecommunications signaling and power is thereby provided in t he PC while limiting accidental user exposure to hazardous ringing signal voltage l evels.
Patent CA-2257562-A1 (CA)
Title: Enzymatic process for the preparation of (s)-cyanohydrins
Inventor: ZABELINSKAJA-MACKOVA ANTONIA
IPC: C12P13/00
Filed: 1998-12-29
Abstract: Process for the preparation of the (S)-enantiomers of optically active cyanohydrins, in which a reaction mixture of a) an aldehyde or ketone dissolved in an organic, water-immiscible or slightly miscible diluent, b) an aqueous (S)-hydroxynitrile lyase solution and c) a cyanide group donor is stirred in such a way that an emulsion is formed which is maintained up to the end of the reaction by stirring.
Patent CA-2261113-A1 (CA)
Title: Improved access top cover for washing machine
Inventor: RICHARDSON CURTIS G
IPC: D06F39/14
Filed: 1999-02-03
Abstract: An improved access top cover for a washing machine includes a top panel having a rear edge, first and second opposite side edges, and a front edge. The upper surface of the top panel includes a sloping surface commencing adjacent the front edge of the top panel and sloping upwardly and rearwardly toward the rear edge of the top panel. An access opening is provided in the top panel and a lip flange is positioned between the access opening and the front edge of the top panel. The lip flange forms a ridge which is located above both of the front edge of the top panel and the access opening.
Patent CA-2261306-A1 (CA)
Inventor: VELAN ADOLF KAREL
IPC: F16J15/18
Filed: 1999-02-05
Abstract: The invention relates to a rigid hermetically sealed housing to protect springs in a live load connection from corrosion, such as in the packing box assemblies of valves and pumps used in chemical processing equipment. Live load connectors include an elongate connector such as a bolt with one end securing a fixed member, and another end securing a movable member, such as the flange of a packing box gland. The bolt connector biases a coaxially disposed spring on its shank against the movable flange. The invention relates to preventing corrosion of the spring with an hermetically sealed telescoping housing enveloping the spring with sealed openings through which the connector shank passes. The telescoping components of the housing can be simply constructed in the form of a hollow cup with a bottom wall with one of the sealed openings, and a cap having a top wall with the other sealed opening thus permitting the bolt shank to pass through the housing while retaining the seal to protect the spring. The cap and cup have slidingly sealed surfaces to provide a telescoping sealed connection thus allowing the spring to flex freely while enveloped in a protective housing. For simplicity of manufacture, the preferred cup has a cylindrical side walls and an annular bottom wall, whereas the cap is annular with a sealed sliding fit on the cylindrical cup walls. The cylindrical shape minimizes the size of the housing and permits use of inexpensive O-ring seals between the bolt shank and the housing, as well as between the telescoping cup and cap portions of the housing. To prevent overstressing of the spring, the housing is rigid and capable of bearing the full load applied to the connector since the cap includes outwardly extending flange for engaging the cup top edge thus preventing overstressing of the spring while transferring the full connector load.
Patent CA-2262872-A1 (CA)
Inventor: JOHANSON JAMES E
IPC: B65H75/28
Filed: 1999-02-24
Abstract: Un porte-fil réutilisable à installer sur un bobinoir pour enrouler et dérouler du fil est présenté. Le porte-fil comprend un tube cylindrique creux qui est préférablement fabriqué dans un matériau plastique. Chaque extrémité du tube comporte une cannelure. La transition entre la surface extérieure du tube et la cannelure est formée par un épaulement. Un anneau élastique est positionné dans chaque cannelure. L'anneau élastique est fixé par la surface de la base de la cannelure et forme une surface de prise adjacente à l'épaulement sur le tube. De plus, l'extrémité de l'anneau positionné à proximité de l'extrémité du tube forme un rebord de protection. Par conséquent, si le tube subit chute, l'anneau absorbe la plus grande partie de l'impact plutôt que le matériau du tube lui-même. La formation de l'anneau dans la cannelure du tube forme une surface de prise pour l'enroulement du fil. De plus, les anneaux élastiques peuvent être fournis en différentes couleurs et formes pour fournir une identification du type de fil présent sur le tube.
Patent CA-2265063-A1 (CA)
Title: Converting magnetic field depth solutions to a three-dimensional seismic data format
Inventor: PEIRCE JOHN W
IPC: G01V11/00
Filed: 1999-03-10
Abstract: Magnetic field depth solutions are calculated for a magnetic field survey. These depth solutions are defined spatially by x, y and z co-ordinates. A digital three dimensional zero matrix is constructed by a computer program to represent a prism of earth underlying the area of the magnetic field survey. The matrix is subdivided evenly into elements representing smaller bins or prisms. Unit values are assigned to those elements to which the depth solutions correspond spatially. The resulting matrix values therefore represent a density or frequency of occurrence per unit volume of the magnetic depth solution points. The matrix elements are then spread to surrounding elements by three-dimensional convolution methods using Gaussian wavelets in each of three directions, thereby smoothing the data. The resulting data volume, or three dimensional digital matrix is then converted to a format compatible with a computerized seismic data visualization and interpretation tool and loaded into the tool. The integrated analysis of aeromagnetic depth solution data with seismic data is thereby enabled.
Patent CA-2266473-A1 (CA)
Inventor: YAMAMOTO KENICHI
IPC: C07C269/06
Filed: 1997-09-12
Abstract: Cette invention concerne un procédé de préparation de grandes quantités d'esters érythro-3-amido-2-hydroxybutyrique actifs sur le plan optique, lesquels possèdent une grande pureté et peuvent être utilisés en qualité d'intermédiaires importants pour des produits pharmaceutiques, notamment pour des inhibiteurs de protéase du VIH. Ce procédé consiste à oxyder le groupe hydroxyle à la position 2 d'un ester 3-amino-2-hydroxybutyrique dont la position 3 reste active sur le plan optique. Cet ester correspond à la formule (I) où R?1¿ représente un groupe cyclohexyle ou phényle, et R?2¿ et R?3¿ représentent chacun un groupe protecteur. La configuration représentée par *1 consiste en une configuration S ou en une configuration R. Ce procédé consiste enfin à effectuer une réduction à sélection érythro à l'aide d'un alcoxyde d'aluminium.
Patent CA-2268186-A1 (CA)
Title: Compositions and method for removing paint from a substrate
Inventor: BRALEY JOANNA MAY
IPC: C09D9/00
Filed: 1997-10-22
Abstract: A paint stripper for use by immersion of a painted substrate in a bath of the composition or application in place comprises two phases, one aqueous and the other of partially water soluble organic solvent. The aqueous phase is saturated with organic solvent. The organic solvent is preferably benzyl alcohol, dibasic ester or ethyl-3-ethoxypropionate. The total amount of organic solvent in the bath is suitably in the range 2 to 20 %. The stripper may be acid or alkali activated. The application stripper is thickened to avoid separation during storage.
Patent CA-2268934-A1 (CA)
Title: Imagerie stereoscopique
Inventor: MIHALCA GHEORGHE
IPC: G02B23/24
Filed: 1997-10-23
Abstract: L'invention concerne un dispositif d'imagerie stéréoscopique, qui se fixe sur un instrument tel qu'un endoscope et qui est caractérisé par une pupille de sortie disposée à proximité de sa zone proximale. Le dispositif d'imagerie comprend une plaque à double orifice et un commutateur optique, disposés à l'intérieur d'un boîtier qui se fixe sur la zone proximale de l'instrument. La plaque à deux orifices définit un orifice droit et un orifice gauche, disposés à distance l'un de l'autre à des emplacements symétriques sensiblement dans le plan de la pupille de sortie de l'instrument. Le commutateur optique bloque alternativement la lumière provenant de l'instrument et celle traversant les canaux optiques droit et gauche, de façon à générer une vision stéréoscopique.
Patent CA-2271028-A1 (CA)
Title: Method for production of conducting element and conducting element
Inventor: HATJASALO LEO
IPC: F21Y103/10
Filed: 1997-11-14
Abstract: Method for production of conducting element, which conducting element consists at lest of an elongated electricity conductive conductor part (1), in which several electric components (2), bringing out the lighting operation or like according to the use of the conducting element, are being attached to one after another in the longitudinal direction (s), whereafter the said entirety is being surrounded by a casing part (3) protecting the same. The conduting element is being manufactured from an essentially flat conductor part (1; 1'), such as a band a stripe or a like, into which there has been attached electric components (2'), such as probes, LEDs, resistors and/or the like by arranging the same, preferably throughout built-in when viewed in a cross section with a casing material (3') forming the said casing part (3), by exploiting a continuous manufacturing process, such as extrusion or like. The invention also relates to a conducting element to be manufactured by the method.
Patent CA-2271884-A1 (CA)
Title: Improved porous biomaterials and methods for their manufacture
Inventor: SHORS EDWIN C
IPC: A61K6/884
Filed: 1997-06-03
Abstract: An improved porous ceramic biomaterial is disclosed in which a polymer such as polylactic acid is polymerized in situ to fill the micropores substantially without filling the macropores. The polymer reinforcement helps improve the strength of the implant while preserving its ability to support ingrowth of bone to help integrate the implant into its surgical environment.
Patent CA-2275563-A1 (CA)
Inventor: TAKIZAWA TETSURO
IPC: H04N19/126
Filed: 1999-06-18
Abstract: A memory compression and expansion section (11 of Fig. 1) applies compression to a decoded image, and it is stored in a frame memory. Based on an occupied content of the frame memory (Fig. 1 106), in case that the coded bit number for a single or a plurality of memory compression processing units or for every control unit of memory compression processing exceeds the bit number of a memory access unit or is lacking, a memory access width control section (110 of Fig. 1) applies control to a quantizer control section (109 of Fig. 1) so that the coded bit number is conformed to be equal to or less than the bit number of the memory access unit.
Patent CA-2276592-A1 (CA)
Title: Improved heat gun fan assembly
Inventor: JERDEE JEFFREY S
IPC: F24H3/04
Filed: 1998-01-05
Abstract: A heat gun having a fan assembly (10) for use therein having a flow straightener (48) to reduce turbulence in air passing through the fan assembly (10). The fan assembly (10) also includes a blower housing (14) with a reduced diameter outlet (92), a relatively large diameter radial flow impeller (36), and an electric motor (10) to rotate the impeller (36). The flow straightener (48) includes a plurality of vanes (50), and curved radially interior and exterior walls (47, 49). The motor (60) includes apertures (68, 70) in upstream and downstream ends and apertures in a cylindrical sidewall.
Patent CA-2278620-A1 (CA)
Inventor: ZIMMERBAUER KARL-HEINZ
IPC: C21B13/00
Filed: 1998-01-27
Abstract: In an arrangement for the controlled cooling of hot-briquetted direct-reduced sponge iron in the form of an apron conveyor consisting of individual plates and located in a tank, the individual plate is designed as a conveyer trough, wherein at least one sliding plate each is located on the two opposed longitudinal outsides and the conveyor troughs are movably supported by means of the sliding plates on slideways and connected by means of at least one chain. The invention allows to separate the drive and the bearing as the conveyor troughs are supported by means of sliding plates and the drive acts directly on the conveyor trough by means of at least one chain. As the translation elements are designed as sliding plates and slideways, the surface pressure is reduced to less than a hundredth compared to wheels running on rails and the wear of the translation elements is thus reduced.
Patent CA-2278937-A1 (CA)
Inventor: MILLER RICHARD A
IPC: A61K41/00
Filed: 1997-12-11
Abstract: The use of texaphyrins for ocular diagnosis and therapy is provided, especially use of photosensitive texaphyrins for photodynamic therapy of conditions of the eye characterized by abnormal vasculature, such as macular degeneration, or pterygium, for example. The photosensitive texaphyrin may be a free-base texaphyrin or may be metallated with a diamagnetic metal.  Preferably, the photosensitive texaphyrin is metallated with lutetium. Due to the dual wavelength absorption of texaphyrins, i.e., at 400-500 nm and at 700-800 nm, especially about 732 nm, as compared to porphyrins, texaphyrins are more effective and versatile for use in humans as compared to porphyrins.  Texaphyrins serve as effective contrast agents in ocular angiography.
Patent CA-2279170-A1 (CA)
Inventor: LOGAN DONALD A
IPC: A61G5/10
Filed: 1999-07-30
Abstract: A wheelchair system is provided for use with a conventional mini-van including a wheelchair which has a seating reference point arranged to lie substantially in a common plane with the same seating reference points of the other occupant seats of the mini-van. The person in the wheelchair is thus able to sit upright in the mini-van with sufficient headroom with substantially no structural modification to the mini-van being required. This is accomplished by positioning the seat of the wheelchair to be inclined downward toward the rear of the seat, similarly to passenger seats in conventional passenger vehicles. An actuator supports the seat on a frame of the wheelchair for selectively raising or lowering the seat.  This permits the seat to be raised for sitting at a table for example. A portable ramp arrangement is further provided for use in loading the wheelchair into a passenger vehicle.
Patent CA-2279548-A1 (CA)
Inventor: AKHTAR SAGHIR
IPC: C12N5/10
Filed: 1998-01-14
Abstract: L'invention porte sur des molécules d'acide nucléique enzymatique clivant l'ARN du récepteur du facteur de croissance épidermique (EGFR).
Patent CA-2279924-A1 (CA)
Title: Detonateur muni d'un pont semi-conducteur a forte impedance
Inventor: EWICK DAVID W
IPC: F42B3/13
Filed: 1998-03-02
Abstract: Le détonateur (10) de cette invention comprend un ensemble amorce (35) à base de pont semi-conducteur assurant l'allumage d'une charge d'amorce (18). L'ensemble amorce (35) à base de pont semi-conducteur contient un élément amorce (36) comportant un pont (60) en matériau semi-conducteur, disposé entre deux dépôts conducteurs (62a, 62b). Le pont (60) assure une résistance égale ou supérieure à environ 50 ohms et représente un volume compris entre 48 600 et 600 000 micromètres cube, son épaisseur étant généralement égale à deux micromètres. Sous l'effet d'un courant de mise à feu supérieur à 200 milliampères, fourni à l'ensemble amorce (35) à travers des fils conducteurs d'entrée (26a, 26b), le pont (60) allume la charge d'amorce (18).
Patent CA-2280534-A1 (CA)
Inventor: INGENITO ANDRE
IPC: A61K9/22
Filed: 1998-02-10
Abstract: A process for the industrial manufacture in an aqueous medium of a slowrelease excipient consisting mainly of cross-linked amylose having controlled release properties, for use in the preparation of tablets or pellets. A starch containing a high amount of amylose (high amylose starch) is first subjected to a gelatinization. The gelatinized high amylose starch is then cross-linked with 1 to 5 g of a cross-linking agent per 100 g of dry-based gelatinized high amylose starch in an alkali medium, thereby forming a reaction medium containing a reaction product consisting of a cross-linked high amylose starch slurry. The obtained reaction medium is neutralized, thereby forming byproducts mainly consisting of salts, which are removed from the reaction medium. The recovered cross-linked high amylose starch slurry is then subjected to a thermal treatment at a temperature of at least 60 ~C and the thermally treated product is dried to obtain the requested slow release excipient. This process is economical and industrially advantageous since it is carried out in an aqueous medium.
Patent CA-2281336-A1 (CA)
Title: Methylcyclotetradec-5-en-1-ones
Inventor: FRATER GEORG
IPC: C07C45/51
Filed: 1999-09-02
Abstract: Disclosed are compounds of formula I having a strong musk-like odor:    In formula I, R1 and R2 are hydrogen or methyl, with the proviso that when R1 is methyl, R2 is hydrogen, and when R1 is hydrogen, R2 is methyl. The compounds of formula I may be in the Z- and/or in the E-form. Methods of making the compounds of formula I and compositions containing such compounds are also disclosed.