baber/WOPTO huggingface dataset:
Patent CA-2199400-C (CA)
Inventor: CHAN AGNES HOW-CHING
IPC: A61P37/00
Filed: 1995-09-22
Granted: 2006-02-14
Abstract: Multiple sclerosis and rheumatoid arthritis can be treated effectively using photodynamic therapy. In this protocol, a photoactive compound is administered, allowed to distribute in the affected subject, and the subject is then irradiated to activate the photoactive compound. Alternatively, the blood of a subject to be treated can be subjected to PDT extracorporeally. In the case of rheumatoid arthritis, localized treatment at the joints may also be employed.
Patent CA-2201548-C (CA)
Inventor: LAFLEUR LEE
IPC: B65D88/16
Filed: 1997-04-02
Granted: 2006-06-13
Abstract: A flexible and collapsible bulk bag having an upright orientation in use with top and bottom end access openings to the exterior of the bag through which a flexible and collapsible liner is received in the bag, the liner also having top and bottom access openings through which the bulk contents are respectively entered and discharged. When the bag is expanded and filled it has a pair of spaced apart and generally conical ends formed by four triangular portions interconnected by four generally rectangular side walls, with the ends convergently tapering toward their associated access opening. The bag when empty can be collapsed into a compact, flat configuration having a pair of overlying front and rear panels with a pair of folded gusseted side panels received therebetween. A pair of laterally spaced apart U-shaped hanger straps at the top end of the bag together flank the bag and liner top openings and each comprise a two-ply front extension and a two-ply rear extension with mutually overlapped portions permanently interconnected to thereby form a four-ply thickness where these hanger strap extensions mutually overlap. A strap reinforcement saddle includes U-shaped end straps sewn over the bag hanger straps along inner edges thereof and extending down to the bag front and rear bag panels. The bag bottom end opening has four flaps, and a cooperative reinforcement girdle has a horizontal strap belt encircling the bottom end triangular portions of the bag and is affixed thereto. The girdle also has four belt loops each connected to the strap belt and extending downwardly past the lower end of the associated flap and then upwardly along the interior side of the flap back to the belt. A tie cord is strung serially through the belt loops and is operable upon tightening to draw them together to thereby close them across the bag bottom discharge opening. The bag, liner, associated fill and discharge spouts and girdle are all constructed of flexible material and are respectively compressible together. Alternatively the liner has a rigid discharge outlet spout and a protective exterior flap spans beneath the spout outlet closure to serve as an openable, flexible protective barrier for the same. When the bag is full and ready to be discharged, the bag and liner are suspended vertically by hoisting from the bag hanger straps. A pair of squeeze nip rollers may then be applied across the front and rear panels and then pulled downwardly therealong to thereby squeeze any remaining contents out the liner discharge opening. When the discharge outlets of the liner and bag are made of flexible and compressible material, the nip roller squeegee stroke continues therealong the material of these outlets to also empty any contents remaining therein.
Patent CA-2206221-C (CA)
Inventor: NUSIME HARALD
IPC: B66B23/12
Filed: 1997-05-27
Granted: 2005-07-26
Abstract: The present invention discloses an escalator step in aluminium die-casting with a reinforcing addition, by means of which the load capacity and thus the fracture load limit of the step body (1) is increased. In an unchanged compact step body (1), a stiffening section (6) is fastened in transverse direction at the rear part at its underside (16) and the side struts (15) are reinforced by enclosing side parts (7, 8), wherein the rims of the side surfaces of the side parts (7, 8) lie against the underside (16) and against the rear side (17) of the step body (1) and a metal ring, which welded together with the side plates (7, 8), encloses the stub axle pin of the step body. This stiffening section (6) has an asymmetric U shape.
Patent CA-2206868-C (CA)
Inventor: MULLER DAVID F
IPC: A61F9/007
Filed: 1995-12-04
Granted: 2004-04-13
Abstract: La présente invention concerne des procédés et des systèmes de reprise du profil cornéen au moyen d'un faisceau annulaire de rayonnement ablatif destiné à corriger des erreurs réfractives affectant la vision, et/ou à créer des "zones fusionnelles" permettant de réduire toute discontinuité superficielle affectant la cornée à la suite d'interventions correctrices de l'hypermétropie ou de l'astigmatisme. De par leur mise en oeuvre, les procédés et systèmes de la présente invention autorisent de préférence également des variations dans la répartition de l'intensité du faisceau lumineux, faisant que la couronne du rayonnement présente une intensité variant en fonction du rayon géométrique, ce qui permet notamment de produire des effets fusionnels à partir d'un nombre minimum d'impulsions. L'invention concerne également des procédés de photo-kératectomie réfractive. Ces procédés consistent (a) d'abord à reprendre sélectivement le profil cornéen d'un oeil par enlèvement d'un volume de tissu cornéen grâce au rayonnement ablatif pour constituer une zone à profil corrigé dans la zone optique qui forme un à-pic, au moins en partie, dans le centre de l'incurvation de la cornée, puis (b) à appliquer à la zone périphérique de la cornée un faisceau annulaire de rayonnement ablatif caractérisé par une intensité variant radialement depuis l'intérieur vers un segment externe du faisceau annulaire de façon à créer une zone fusionnelle, ce qui crée une transition douce entre la région dont le profil a été repris et la région où la cornée n'a pas subi d'ablation. L'invention concerne en outre des lentilles optiques dont la face antérieure est conique et dont la face postérieure se présente généralement perpendiculairement au trajet du faisceau incident. La lumière traversant cet élément optique se formera par réfraction en un faisceau annulaire. Les variations du profil d'intensité du faisceau annulaire peuvent être générées à partir d'un faisceau initial de profil non uniforme, ou en modifiant la géométrie soit de la face postérieure soit de la face antérieure de l'élément optique.
Patent CA-2213619-C (CA)
Inventor: LOWE PETER R
IPC: G06F21/62
Filed: 1997-08-22
Granted: 2001-07-24
Abstract: A wireless modem employs a radio frequency (RF) transponder system components to remotely access the memory of an electrical or electro-mechanical device by providing an exciter/reader/writer (ERW) circuit free of electrical contact with the electrical or electro-mechanical device and a transponder including a transmit/receive antenna, a reading circuit, a programming circuit, and a transponder memory.  The transponder memory is directly connected to the device memory.  TheERW circuit initially generates an RF excitation signal powering the transponder.  In response to the RF excitation signal, the transponder generates a RF response signal using the reading circuit that is transmitted back to the ERW circuit.  The RF response the ERW circuit, which in turn generates an RF write signal that is transmitted to the transponder.  The RF write signal powers the transponder and programs the devicememory using the programming circuit of the transponder.
Patent CA-2217136-C (CA)
Inventor: KOSHIBA TOMOKAZU
IPC: C12N5/10
Filed: 1997-09-30
Granted: 2010-08-17
Abstract: There is provided an aldehyde oxidase gene which is a 4.4 kbp gene obtainable from a plant and which encodes an amino acid sequence of an enzyme capable of oxidizing an aldehyde compound to a carboxylic acid and utilization thereof.
Patent CA-2229079-C (CA)
Inventor: BENTON FRANCES H
IPC: F16K35/00
Filed: 1997-06-24
Granted: 2005-03-22
Abstract: A locking valve for controlling fluid flow within a conduit has a spring-biased detent (34) in fluid communication with a fluid source. A movable valve structure (10) prevents fluid flow through the conduit in a closed position and enables fluid flow through the conduit in an open position. Movement of the valve structure from the closed position to the open position is obstructed by the detent when fluid pressure in the conduit is below a predetermined pressure. An increase in fluid pressure, however, moves the detent against the spring bias (40), removing the obstruction to movement of the valve structure, and allowing the valve structure to be moved to the open position. Thus, accidental or intentional drainage of the conduit when the fluid pressure source is inactive is avoided.
Patent CA-2233456-C (CA)
Title: Mechanical process, wet or dry, to obtain continuous changes in appearance and colour of textile fabrics using rollers coated with diamond powder
Inventor: BELTRAMINI GIORGIO
IPC: D06C11/00
Filed: 1995-12-29
Granted: 2004-04-27
Abstract: Mechanical process, rollers and machines (10) for obtaining continuous modification of the appearance and colour of textile fabrics by passage, dry or wet, of the fabric (41) under tension, around rollers (23-26) with a coating (35) of diamond powder, uniformly or in areas marked out in their surfaces.
Patent CA-2233696-C (CA)
Inventor: JAARSMA ADRIAN
IPC: B62K3/12
Filed: 1998-04-02
Granted: 2007-08-07
Abstract: A standard bicycle is modified by the addition of an auxiliary child's seat. The front fork of the bicycle is replaced with a specialized front fork mounting a seat, pedals and a drive wheel. The auxiliary front seat is mounted to the stem of the fork above the head tube. The auxiliary pedals are mounted on the front fork immediately below the head tube. They carry a sprocket that is engaged with a chain to a sprocket set on the front wheel. A derailleur on the front fork allows the adjustment of the drive ratio between the front pedals and the wheel speed.
Patent CA-2234492-C (CA)
Title: Device and method for measuring tidal volume
Inventor: VOLGYESI GEORGE A
IPC: A61B5/053
Filed: 1998-04-09
Granted: 2006-11-07
Abstract: A device for monitoring tidal volume in a subject comprising a flexible substrate for attachment to an animal or human whose tidal volume is to be monitored;  sensing means attached to the substrate and connectable into an electric circuit which converts changes in tidal volume in the animal or human to a signal output, the sensing means comprising a series of semiconductive sensors and conductive sensors. A method for monitoring tidal volume in a subject using the device is also described.
Patent CA-2237542-C (CA)
Title: Quarternary ammonium compounds useful for inhibiting metal corrosion
Inventor: BREZINSKI MICHAEL M
IPC: C23F11/04
Filed: 1998-05-13
Granted: 2004-12-28
Abstract: The present invention provides improved quaternary ammonium compounds useful as metal corrosion inhibitors in aqueous acid solutions, methods of preparing the compounds, metal corrosion inhibited aqueous acid solutions containing the compounds and methods of protecting metal surfaces from acid corrosion using the compounds. The compounds are prepared by contacting the still bottoms residue produced in the distillation of quinoline from coal tar with oxygen to oligomerize aromatic amines contained therein and then reacting the oligomerized amines with a benzylhalide.
Patent CA-2238879-C (CA)
Title: Thereapeutic applications for the anti-t-bam (cd40-l) monoclonal antibody 5c8
Inventor: KARPUSAS MIHAIL N
IPC: G01N33/576
Filed: 1996-11-27
Granted: 2001-09-18
Abstract: Activation of cells bearing CD40 on their cell surface by CD40 ligand is inhibited by contacting the cells with an agent capable of inhibiting interaction between CD40 ligand and the cells, in an amount effective to inhibit activation of the cells. Activation of cells bearing CD40 on their surface by CD40 ligand in a subject is inhibited by administering to the subject an agent capable of inhibiting interaction between CD40 ligand and t he cells, in an amount effective to inhibit activation of the cells. Conditions  dependent on CD40 ligand-induced activation of CD40-bearing cells are treate d.
Patent CA-2239915-C (CA)
Inventor: MEEKER MICHAEL B
IPC: G01M15/00
Filed: 1991-08-01
Granted: 2000-04-25
Abstract: A digital engine analyzer has an oscilloscope display and is controlled by microprocessors operating under menu-driven stored program control.  The analyzer receives analog input signals from an engine being analyzed, engine identification and parameter data entered via a keyboard, function and mode data selected by keyboard, and data communicated from an engine on-board computer via a hand-held scanner device.  The analyzer calculates and displays spark plug burn time information derived from a single analog input signal, a historical display of peak ignition voltage values for a selected cylinder over a number of engine cycles and real time cylinder time balance information.  Peak capture circuitry permit the display of a full cylinder period of a waveform, even though it contains very high frequency portions, by selectively switching between normal and high resolution modes.  The scanner interface permits the scanner control functions to be effected from the analyzer keyboard.
Patent CA-2245025-C (CA)
Title: Process for removing contaminants from thermally cracked waste oils
Inventor: STANCIULESCU MARIA
IPC: C10M175/00
Filed: 1998-08-13
Granted: 2002-12-03
Abstract: A process is described for removing contaminants from thermally cracked waste oil, e.g. used motor oil.  In the process the cracked waste oil is contacted with a solvent comprising methanol.  The thermally cracked waste oil is then separated from the solvent whereby a substantial portion of the contaminants are removed into the solvent.  Thereafter, the solvent is separated from the contaminants and recycled.
Patent CA-2252233-C (CA)
Inventor: ORNDORFF ROY LEE JR
IPC: F16C3/00
Filed: 1997-04-18
Granted: 2005-12-27
Abstract: A bearing assembly (210) for supporting a drive shaft (223) of a ship wherein the shaft is generally to be supported by such bearing assembly in a horizontally extending position. The bearing assembly has a housing (215) with a cylindrical shell mounted therein having a central bore with a longitudinally extending central axis. The shell has a plurality of circumferentially spaced staves (240) provided therein which project into the central bore to support the drive shaft. The staves have transverse grooves provided therein.
Patent CA-2258162-C (CA)
Title: Procede de preparation de melamine
Inventor: VAN WIJCK JULIUS GERARDUS THEO
IPC: C07D251/62
Filed: 1997-06-11
Granted: 2006-03-28
Abstract: L'invention concerne un procédé de préparation de mélamine à partir d'urée à l'aide d'un processus haute pression permettant d'obtenir le la mélamine solide et consistant à transférer la fusion de mélamine quittant le réacteur de mélamine, dans une bac de refroidissement où on la refroidit au moyen d'ammoniaque liquide, afin que la fusion atteigne une température comprise entre environ 50 et environ 350  DEG C, un mélange comprenant de l'ammoniaque et de la mélamine se formant alors. Puis on transfère tout ou partie de ce mélange dans une cuve d'expansion, et on met en contact la composition avec de l'ammoniac pendant une période comprise entre environ une minute et cinq heures, à la suite de quoi on obtient une mélamine solide débarrassée de toutes les autres substances de la composition.
Patent CA-2265737-C (CA)
Inventor: SHINDOME KAZUYA
IPC: F01N1/24
Filed: 1997-10-31
Granted: 2005-08-30
Abstract: A first muffler (4) is connected to a rear end portion of the exhaust pipe ( 2) extending from a single-cylinder engine toward one side of a rear portion of the vehicle body and is provided on one side of the vehicle body. A second muffler (5) i s provided on the other side of the vehicle body opposite to the first muffler (4) through a connecting pipe (6). An outer side surface near the front end portion of the first muffler (4) and the second muffler (5) are covered with first and second covers (7) and (8) both plated. Each of the exhaust pipe (2) and the first and second mufflers (4) a nd (5) have double-pipe structure with outside plated. Further, a front end portion of t he second cover (8) is curved toward the center of the vehicle body, and a phantom lin e as a continuous frontward extension from the front end portion of the second cove r (8) is positioned before the axis of the connecting pipe (6).
Patent CA-2268448-C (CA)
Title: Improvements to atmospheric pressure ion sources
Inventor: WHITEHOUSE CRAIG M
IPC: H01J49/04
Filed: 1997-09-10
Granted: 2006-08-22
Abstract: An Atmospheric Pressure Ion (API) source (1) operates Electrospray (ES) and Atmospheric Pressure Chemical Ionization (APCI) modes. The API source (1) includes a multipurpose heater assembly (10) mount ed in an API source chamber (6). The multipurpose heater assembly (10) supplies heat to an API chamber endplate (8) a bath gas, and a n entrance end (24) of a capillary orifice (28) into vacuum. An additional heater (15) is at the exit end (32) of the capillary (11) into vacuum. The bath gas, endplate (8) and capillary entrance (24) temperature can set independent of gas flow rate.
Patent CA-2268614-C (CA)
Inventor: VIRTANEN PENTTI
IPC: C09C1/02
Filed: 1997-10-14
Granted: 2007-03-27
Abstract: The invention concerns precipitated calcium carbonate products containing polynuclear regular agglomerates having a number of calcium carbonate particles (aggregates) attached to each other and having a particle size of about 40 to 200 nm. According to the invention, these products are prepared by adjusting the Z potential of the calcium carbonate suspension to -1...-20 mV by adjusting the pH of the suspension to 6.5...9.5. The pH of the calcium carbonate slurry obtained by causticizing is adjusted to a desired value in a box filter, where after the suspension is stirred by a heavy-duty mixer such that it is subjected to differences of about 50 to 200 m/s in peripheral speed. The products according to the invention have good opacity and are very well suited for coating paper.
Patent CA-2269463-C (CA)
Title: Multi-pass heat exchanger
Inventor: KANDEL HEINZ GEORG
IPC: F28D7/16
Filed: 1999-04-20
Granted: 2008-04-15
Abstract: The invention relates to a multi-pass heat exchanger (1) having a tube body (2) and a bonnet (5), which is connected to the tubesheet (3) of the tube body (2). Arranged in the bonnet (5) is at least one web (11) for directing the liquid conveyed into the bonnet. The web is connected to the bonnet. According to the invention, provision is made for a gap (13) to be formed between the web and the tubesheet. In this way, a leakage flow, which flushes the gap clear, can flow between the chambers (14, 15) formed by the web. This enables the heat exchanger to also be used for the cooling of liquid present in the ultra-pure state, in particular of ultra-pure water.
Patent CA-2271515-C (CA)
Title: Exhaust gas sampling apparatus
Inventor: SASAKI KYOSUKE
IPC: G01N1/24
Filed: 1999-05-12
Granted: 2008-12-02
Abstract: A storage box has casters attached to its bottom surface and a heater positioned on the bottom surface thereof left-hand side and right-hand side interior spaces are divided by a partition plate, wherein nine sampling bags in total can be received within a wide space at the right-hand side thereof. On one side of the storage box is provided a connector unit which is constructed with an elevating block hooking on guide rails provided in a vertical direction. The elevating block is biased upward with a gas spring. In guide holders of the elevating block are provided guides in the same number as the number of the sampling bags, and into each guide is removably inserted a flexible conduit made from stainless steel. Heaters and warm air passages are provided to prevent the condensation of moisture within a sampled gas under a range of operating conditions.
Patent CA-2276464-C (CA)
Title: Fluid mixer and process using the same
Inventor: WENTINCK HENDRIK MARTINUS
IPC: B01F15/00
Filed: 1998-01-06
Granted: 2007-05-08
Abstract: Apparatus for mixing reactive fluids which are capable of ignition or explosion, at elevated temperature and pressure, for subsequent conversion by contact with a catalyst (12), such as a (partial) oxidation catalyst or in a combustion zone, comprising in sequence an upstream inlet end, a mixer (4), an expander (5), a diffuser (7) and a downstream outlet end (9), the outlet end being characterised by a greater available cross sectional area than any of the inlet end, mixer and expander, and the expander having substantially increasing internal cross sectional area in downstream direction, wherein the available cross sectional area of the expander at any point along its length is less than the difference in internal cross section of the expander at its downstream and its upstream ends, a process therefor and the use thereof, in particular the use thereof in a process for the catalytic partial oxidation of hydrocarbon feedstock.
Patent CA-2277572-C (CA)
Inventor: OLOMAN COLIN
IPC: C25B9/00
Filed: 1999-07-13
Granted: 2009-02-03
Abstract: The invention provides methods and devices for the electrochemical generation of nitrogen from organic nitrogen compounds, such as hydrazides (RCONHNH2), the corresponding organic hydrazino-carboxylates (RCO2NHNH2) and amino-guanidine salts (e.g. aminoguanide bicarbonate H2NNHC(NH)NH2.H2CO3). A variety of organic hydrazides and hydrazino-carboxylates may be used, and empirically tested for performance. For example, in the hydrazides and hydrazino-carboxylates "R" may be an alkyl, alkenyl, alkynyl or aryl group, in some embodiments methyl, ethyl, or benzyl. The alkyl, alkenyl and alkynyl groups may be branched or unbranched, substituted or unsubstituted. The utility of such compounds may be routinely assayed in accordance with the guidance provided herein, including the Examples set out herein in which alternative nitrogen compounds may be substituted for routine test purposes.
Patent CA-2279399-C (CA)
Inventor: MICHOT CHRISTOPHE
IPC: H01M8/00
Filed: 1998-12-01
Granted: 2011-09-06
Abstract: The invention concerns ionic compositions with high ionic conductivity, comprising a salt with delocalized anionic charge. An ionic composition comprises a salt dissolved in a solvent and has a conductivity higher than 10?-5¿ S.cm?-1¿ between -30 ·C and 150 ·C. The cation is a proton, a hydronium, a hydroxonium, a nitrosonium NO?+¿, an ammonium -NH¿4??+¿, or an organic or organometallic metal cation. The anion is a carbanion bearing a perfluorinated substituent or a substituent bearing at least a F on the .alpha. carbon of the carbanion, and two non-perfluorinated electroattractive substituents. Said composition can be used as electrolyte in electrochemical devices, as catalyst for chemical reactions, as photochemical or thermochemical initiator for polymerisation or cross-linking reactions.
Patent CA-2279522-C (CA)
Inventor: DUAN DANIEL C
IPC: A61K9/12
Filed: 1998-02-04
Granted: 2008-01-15
Abstract: L'invention concerne des procédés, composés et formulations médicinales dans lesquels on utilise des polymères biocompatibles pour l'apport d'un médicament, notamment pour solubiliser, stabiliser et/ou procurer une libération prolongée de médicament à partir de systèmes topiques, implantables et d'inhalation. Beaucoup de ces procédés, composés et formulations médicinales sont appropriés à une inhalation orale et/ou nasale, et à une utilisation de polymères de la formule -[X-R<1>-C(O)]- dans laquelle chaque R<1> représente un groupe organique, choisi indépendamment et qui lie le groupe -X- au groupe carbonyle, chaque X représentant indépendamment oxygène, soufre ou azote caténaire.