baber/WOPTO huggingface dataset:
Patent CA-2319896-C (CA)
Inventor: SAUVAGEAU CHRISTINE
IPC: C22B7/02
Filed: 2000-09-19
Granted: 2003-10-21
Abstract: A method for the treatment of air pollution control (APC) residues comprising the steps of washing the residues at least one time in an alkaline solution maintained at a pH not lower than about 11.5, separating the alkaline washed residues from the alkaline solution. The present method further comprises an optional step of verifying whether the alkaline washed residues are substantially devoid of metal components.     When the alkaline washed residues are not substantially devoid of metal components, the alkaline washed residues are washed at least one time in an acid solution maintained at a pH between about 2 and about 4.5 and the acid washed residues are separated from the acid solution so as to produce residues substantially devoid of metal components. The APC residues obtained in application of the methods according to the present invention constitute non-hazardous material/waste.
Patent CA-2330235-C (CA)
Inventor: WANG CHANG YI
IPC: C07K14/73
Filed: 1999-06-21
Granted: 2008-08-12
Abstract: L'invention concerne des peptides comprenant une séquence homologue par rapport à une partie du domaine semblable à CDR-2 de CD4, et présentant une liaison covalente avec un déterminant antigénique de cellule T auxiliaire, ainsi qu'éventuellement avec d'autres séquences immunostimulatrices. Elle concerne l'utilisation de ces peptides en tant qu'immunogènes afin de provoquer la production chez des mammifères d'un titre important d'auto-anticorps polyclonaux spécifiques pour un complexe de surface de CD4. Ces auto-anticorps empêchent la fixation de particules virales de VIH à des cellules de CD4+. Ces peptides sont utiles dans des compositions pharmaceutiques afin d'exercer une immunothérapie et une protection contre l'infection par VIH.
Patent CA-2332041-C (CA)
Inventor: VAN KEMENADE MATHEA JOHANNA JO
IPC: B29C48/67
Filed: 1999-05-07
Granted: 2007-07-17
Abstract: The present invention relates to a process for continuously manufacturing composites of polymer and cellulosic fibres, comprising the steps of: a) feeding a polymer upstream into an extruder; b) melting and mixing the polymer in a zone (A) of the extruder, wherein zone (A) comprises at least one positive transportation screw element; c) feeding cellulosic fibres into the extruder in a zone (B) of the extruder, which zone (B) is located downstream of zone (A); d) transporting the mixture of polymer and cellulosic fibre obtained in zone (B) through a degassing zone (C), which zone (C) is located downstream of zone (B), wherein zone (C) comprises at least one positive transportation screw element and e) transporting the mixture obtained in zone (C) through a pressure building zone (D) of the extruder, which zone (D) is located downstream of zone (C), wherein zone (D) comprises at least one positive transportation screw element; f) releasing the mixture obtained in zone (D) into a die, characterised in that zone (B) comprises at least one positive transportation screw element, at least one kneading section and at least one negative transportation screw element such that in zone (B) of the extruder the cellulosic fibres are fibrillated to obtain cellulosic fibres with an aspect ratio as high as possible, while simultaneously mixing the cellulosic fibres with the melted polymer. This process results in a compounded material comprising polymer and cellulosic fibres, wherein the cellulosic fibres are elementary fibres and have a high aspect ratio. As a result the compounded material has excellent mechanical properties.
Patent CA-2335579-C (CA)
Inventor: TOMKO REVATHI R
IPC: C08G18/66
Filed: 1999-06-22
Granted: 2005-09-27
Abstract: A process for producing a coating composition for use over chalky substrates comprising a partial interpenetrating network of a polyurethane component and a waterborne polymer component, wherein the polyurethane component is prepared in the presence of the waterborne polymer component.
Patent CA-2336018-C (CA)
Title: Current detector and current measurement apparatus including such detector
Inventor: SKERRITT ROBERT CHARLES
IPC: G01R1/20
Filed: 1999-06-30
Granted: 2008-08-12
Abstract: A current sensor comprising a rigid metallic link member having two end portions of conductive material and an intermediate portion interconnecting the end portions, said intermediate portion being formed of a resistive material, and an integrated circuit analog to digital converter mounted on said link member, said converter having analog input terminals connected to respective ones of said two end portions and digital output terminals for connection to a processing apparatus.
Patent CA-2339192-C (CA)
Inventor: DEWEY STEPHEN L
IPC: A61K31/19
Filed: 1999-08-05
Granted: 2009-12-22
Abstract: La présente invention porte sur un procédé visant à modifier le comportement d'un mammifère lié à l'accoutumance et souffrant de l'accoutumance aux médicaments. Ce procédé consiste à administrer au mammifère une quantité efficace de gamma vinylGABA (GVG) ou d'un sel pharmaceutiquement acceptable, ou un énantiomère ou mélange racémique de ceux-ci. La quantité effective est suffisante pour diminuer, inhiber ou éliminer le comportement associé à l'état de besoin ou à l'abus des médicaments.
Patent CA-2341060-C (CA)
Inventor: FLORES AARON G
IPC: E21B23/01
Filed: 1999-07-23
Granted: 2005-04-26
Abstract: A method and apparatus for anchoring a tool within a cased borehole wherein at least one piston connected with respect to the tool includes an associate d anchor shoe. The anchor shoe has a penetration means, such as a plurality of wheels having a sharp outer periphery, for engagement with the cased borehole. A packer having a rigid component, such as a plurality of concentric rings, is connected with respect to the tool, opposite the piston. The packer may also have a sealing member for creating a sealed engagement between the tool and the cased borehole. Wh en the piston is extended, the anchor shoe contacts the cased borehole and centers the tool with respect to the cased borehole. When the piston is extended, the packer also engages the cased borehole and maintains the position of the tool as we ll as creating a sealed connection between the tool and the cased borehole.</SDOAB >
Patent CA-2348172-C (CA)
Inventor: KOBAYASHI YOSHIKI
IPC: C09J121/00
Filed: 2001-05-18
Granted: 2008-03-18
Abstract: A sheet for protecting a paint film, the sheet comprising a substrate and formed on one side thereof a rubber-based pressure-sensitive adhesive layer which comprises a rubbery polymer and incorporated therein a copolymer of at least one aromatic compound with at least one terpene compound or aliphatic hydrocarbon compound. The sheet can be efficiently applied and satisfactorily adhered to a paint film and retain the satisfactorily adherent state over long. After accomplishment of the protection, the sheet can be easily peeled off and is less apt to foul the paint film even when the paint film is of the type susceptible to fouling upon protective sheet removal.  No cleaning treatment is hence necessary.
Patent CA-2350670-C (CA)
Inventor: FAY RALPH MICHAEL
IPC: E04B1/99
Filed: 2001-06-15
Granted: 2012-01-10
Abstract: An acoustic medium for temporary acoustic treatment of a room is formed from one or more continuous curtains, preferably, with pleated first and second major surfaces. Each pleated curtain preferably has one or more series of collapsible elongated tubular sections which form the pleats that make up the major surfaces of the curtain. Since the elongated tubular sections are collapsible, the curtain can be retracted by collapsing the elongated tubular sections and extended by opening the elongated tubular sections. The mat materials forming the elongated tubular sections and the pleated major surfaces of the curtain provide the curtain with an airflow resistance through the curtain, in a direction generally perpendicular to the planes containing the apexes of the pleats forming the first and second major surfaces of the curtain, that has the desired properties for absorbing or reflecting sound.
Patent CA-2353434-C (CA)
Title: Height adjustable bird feeder apparatus
Inventor: TEETS W BRADLEY
IPC: E04H12/18
Filed: 2001-07-24
Granted: 2008-09-09
Abstract: A height adjustable bird feeder apparatus which allows for the selective lowering and raising of a bird feeder relative to a stationary, vertically oriented pole, wherein the apparatus includes a pole, a sleeve concentrically mounted to the pole so as to be slidable therealong, an article, preferably a bird feeder, mounted to the sleeve, and a sleeve retention mechanism. The sleeve extends entirely through the bird feeder at the center of gravity. The sleeve retention mechanism has a plurality of sets of diametrically opposed holes formed in the pole which receive therethrough a removable pin. An optional critter guard is located at the bottom of the sleeve. When the feed becomes depleted, the user removes the pin and lets the sleeve slid down the pole to the bottom. At this height, the bird feeder feed reservoir is now easily replenished. After filling, the user lifts the bird feeder and sleeve combination back up the pole and reinserts the pin.
Patent CA-2356505-C (CA)
Inventor: MARUSAK RONALD E
IPC: B41J2/055
Filed: 2001-08-30
Granted: 2005-11-01
Abstract: Electrostatic attraction serves as a glue between a piezoelectric actuator and a flexible wall of the fluid chamber. A single actuator which can be shared among channels, provides the effort to drive ink out of the nozzle. The electrostatic field can be switched on and off, and so, individual channels are selectively clamped to the actuator only when those channels are to eject drops.
Patent CA-2356583-C (CA)
Title: Torch for powder plasma buildup welding
Inventor: IMAI MINORU
IPC: B23K15/00
Filed: 2001-09-04
Granted: 2007-10-16
Abstract: A torch for powder plasma buildup welding capable of readily attaining welding in conformity to any size of a pipe material to be subjected to welding, any configuration thereof and the like. A torch head is replaceably connected to a torch body. The torch body is provided with a gap formation spacer member which is abutted against an inner peripheral surface of the pipe material to keep a distance between an opening of a convergent nozzle of the torch head and the inner peripheral surface of the pipe material substantially constant during buildup welding. Also, the torch body is provided with a deflection restraint spacer member which is abutted against the inner peripheral surface of the pipe material to prevent deflection of the torch body in the pipe material during buildup welding.
Patent CA-2358708-C (CA)
Inventor: BROWN DAVID
IPC: A61M1/00
Filed: 2000-11-13
Granted: 2007-08-07
Abstract: The present invention is directed to a wound drain including a plurality of ducts (24), a plurality of lumens (26) and a plurality of portals (28). The ducts (24) provide an entrance for exudate from the wound site into the wound drain. The lumens (26) and ducts (24) provide drainage channels for exudate from the wound site. The portals (28) provide fluid communication between the ducts (24) and the lumens (26).
Patent CA-2360645-C (CA)
Inventor: TURNHAM JEFFREY C
IPC: G06F16/25
Filed: 2001-10-31
Granted: 2006-03-07
Abstract: A dynamic generic framework for distributed tooling comprising a system for creating, storing and manipulating objects, which includes a datastore, a user interface and tools. In a distributed or client-server environment, a virtual datastore is created on the client, through which updates to the user interface and commands to the tools are routed. Commands and updates are transmitted asynchronously through handlers. The objects in the datastore are all of the same kind and have a predetermined generic or uniform attribute set. The schema is comprised of schema objects in the datastore which schema objects are dynamically created by the tools. The user interface perceives and comprehends the schema and utilizes the schema to identify and display objects in the datastore, the relationships therebetween, and the commands that can be executed thereon.
Patent CA-2361165-C (CA)
Title: Media filtrant a voies d'ecoulement formees de couches profilees
Inventor: JOHNSON TODD W
IPC: B01D39/14
Filed: 1999-06-01
Granted: 2006-03-14
Abstract: L'invention concerne un groupe de média filtrants comprenant au moins une couche de feuille polymère possédant des structures superficielles. Les couches de feuilles peuvent se présenter sous forme de pile dont la couche en feuille profilée définit plusieurs ouvertures d'entrées ordonnées, dans une face de la pile et des voies de passage d'air, un volume poreux et ouvert étant ainsi formé. Les voies de passage d'air peuvent être définies par plusieurs voies d'écoulement formées par les contours des couches en feuilles profilées structurées.
Patent CA-2368696-C (CA)
Title: Processor based strobe with feedback
Inventor: HA SIMON
IPC: H05B41/285
Filed: 2002-01-21
Granted: 2011-08-16
Abstract: Strobe control circuitry combines several approaches to limit in-rush current. One circuit limits initial circuit response to an applied voltage that has been switched from an inactive to an active state. Other circuitry switches from a high input impedance state to a low input impedance state a predetermined period of time after the applied voltage has switched to an active state.
Patent CA-2369876-C (CA)
Title: Condensate drain pan
Inventor: WAKEFIELD JAMES M
IPC: F24F13/22
Filed: 2002-01-31
Granted: 2007-01-23
Abstract: A condensate drain pan comprises a compound-sloped floor surface having intersecting sloped faces which slope from a high point to a low point. The intersecting sloped faces form creases therebetween to facilitate condensate elimination, and the floor surface includes condensate directing embossments which further facilitate condensate elimination. The condensate drains to a drain opening at the low point.
Patent CA-2369877-C (CA)
Title: Optical filter using a linear variable filter with elliptical beam geometry
Inventor: DUGGAN PHILIP PATRICK
IPC: G02B6/34
Filed: 2002-02-01
Granted: 2010-07-13
Abstract: This invention relates to a new optical geometry for using a linear variable filter as an optical spectral filter. An elliptical beam geometry with the minor beam axis oriented along the linearly varying axis of the filter is used. The beam is incident at a slight angle relative to the long axis of the beam. Ultimately this geometry produces a filter which has minimum spectral broadening from both angular and beam extent effects. Furthermore, this geometry results in low back reflectance and higher input beam power damage thresholds. The optical filter includes means for tuning a wavelength response of the filter. Further, the optical filter can afford Add/Drop functionality by providing optical circulators at the input and output ports.
Patent CA-2381818-C (CA)
Inventor: MCGUCKIN JAMES F JR
IPC: A61B17/00
Filed: 2000-09-12
Granted: 2009-08-04
Abstract: L'invention concerne un appareil permettant d'obturer une lumière, qui comprend: A. un brin allongé composé d'une partie centrale et de parties d'extrémité s'étendant de ladite partie centrale; B. des pointes desdites parties d'extrémité, à distance de la partie centrale, orientées de façon à être en prise avec la lumière rencontrée et à la retenir; C. ledit brin structuré de façon que les pointes soient à l'extrémité des parties courbées respectives et se faisant face lorsque le clip est non contraint, libre de sollicitations internes; D. le brin doté d'une caractéristique de mémoire telle que le clip non contraint tente de revenir à un état non sollicité, les pointes s'efforçant de coopérer suffisamment pour maintenir la lumière en prise pour favoriser la croissance de l'obturation de l'ouverture entre elles.
Patent CA-2382071-C (CA)
Inventor: STANLEY JAMIE J
IPC: C08J5/00
Filed: 2000-08-16
Granted: 2009-02-24
Abstract: Disclosed is a polymer blend composition containing an aromatic carbonate polymer and a rubber-modified monovinylidene aromatic copolymer comprising a star-branched rubber and optionally, a linear rubber. The polymer blend compositions according to the invention have a desirable balance of processability and when molded, impact strength.
Patent CA-2383372-C (CA)
Inventor: CHIOCCA E ANTONIO
IPC: A61K31/675
Filed: 2000-02-02
Granted: 2010-04-13
Abstract: La présente invention concerne des mutants viraux de l'herpès viral et des procédés d'utilisation de ces mutants viraux dans le ciblage sélectif des cellules tumorales ou d'autres populations de cellules cibles. Les mutants viraux de cette invention sont capables de ciblage sélectif, en raison de l'utilisation de promoteurs spécifiques de cellules et/ou de tumeur pour conduire l'expression du gène .gamma.34.5 de l'herpès.
Patent CA-2388791-C (CA)
Inventor: NIELSON RICHARD B
IPC: C07C7/04
Filed: 2000-10-20
Granted: 2006-11-21
Abstract: L'invention concerne des procédés et des configurations utilisables dans des installations de récupération améliorée de propane. On utilise une colonne absorbante et une colonne de déséthanisation avec condenseur produisant un condensat de reflux, lequel est recyclé vers les deux colonnes susmentionnées. Une troisième boucle de recyclage injecte le propane depuis la colonne absorbante vers la colonne de déséthanisation sous forme gazeuse. Le condenseur utilise les rejets de gaz froids de la colonne absorbante et/ou du propane comme réfrigérant. En mode de réalisation préféré, la colonne de déséthanisation comprend un contacteur intégré pour la séparation de l'eau.
Patent CA-2389490-C (CA)
Title: Method for the production of an immunostimulant milk product and uses thereof
Inventor: ROMOND MARIE-BENEDICTE
IPC: A23C9/123
Filed: 2000-07-06
Granted: 2005-12-13
Abstract: A method for the production of an immunostimulant milk product, characterized in that bioconversion is carried out on or a milk substrate with the aid of a <i>Bifidobacterium</i> culture by keeping said substrate in contact with said culture in conditions which are unfavorable  with respect to the fermentation of <i>Bifidobacterium</i>. The invention also relates to milk foods and products obtained by said method.
Patent CA-2393032-C (CA)
Title: Combination valve support and sealing element for filter cartridges
Inventor: MCKENZIE DARRELL T
IPC: F16J15/10
Filed: 2002-07-10
Granted: 2007-11-27
Abstract: A combination valve support and sealing element is used in a filter cartridge in which the filter cartridge includes a filter element within a housing closed by an end plate having a central opening surrounded by an array of radial openings spaced a fixed radial distance from one another. The valve support and sealing element is comprised of a unitary body having an annular sealing lip for sealing with the end cap of the filter element, which sealing lip deflects under oil pressure to allow oil to bypass the filter element if the filter media of the filter element is clogged. An anti-drainback valve is provided by a radial flange projecting from the unitary body, which radial flange overlies the spaced radial openings and prevents fluid from flowing back out of the spaced radial openings when not under pressure. When the fluid is under pressure, the radially projecting flange deflects, allowing oil to flow past the flange, into the housing and through the filter element.
Patent CA-2394955-C (CA)
Title: Nanofibres orientees noyees dans une matrice de polymere
Inventor: BARRERA ENRIQUE V
IPC: D01F1/10
Filed: 2000-12-07
Granted: 2010-01-26
Abstract: L'invention concerne un procédé de fabrication d'un composite de nanofibres noyées dans une matrice de polymère. Le procédé consiste à incorporer des nanofibres dans une matrice plastique formant des agglomérats et à distribuer les nanofibres de manière uniforme en exposant les agglomérats à des contraintes hydrodynamiques. Ces contraintes hydrodynamiques forcent la rupture de l'agglomérat. On utilise en combinaison ou en supplément un écoulement d'élongation permettant d'obtenir un alignement et des diamètres faibles. L'invention concerne aussi un système de composite de polymère renforcé de nanofibres. Ce système comprend des nanofibres noyées dans des matrices de polymère sous forme de fibres de taille micronique. L'invention concerne aussi un procédé de production de fibres continues de nanotubes. Les nanofibres peuvent être des fibrilles d'un diamètre 100 nm, des nanotubes à parois multiples, des nanotubes à paroi unique et leurs formes variées fonctionnalisées et dérivatisées. Ce procédé consiste à mélanger une nanofibre dans un polymère et à induire une orientation des nanofibres permettant d'utiliser ces nanofibres afin de renforcer des propriétés mécanique, thermique et électrique. L'orientation est obtenue par l'emploi de mélange à cisaillement élevé et d'écoulement d'élongation, individuellement ou en combinaison. Le polymère peut être éliminé des nanofibres pour donner des nanofibres alignées de taille micronique.
Patent CA-2397054-C (CA)
Title: Two-conductor bidirectional digital seismic telemetry interface
Inventor: BISHOP ALLEN J
IPC: G08C15/00
Filed: 2001-01-10
Granted: 2009-10-13
Abstract: A two-conductor bidirectional digital telemetry interface between a seismic sensor acquisition/conversion module (40) and a seismic data collection module (20). The data collection module is configured as a master electronics device and the sensor acquisition/conversion module is configured as a slave electronics device in the telemetry system. The master device provides power to the slave device over the two conductors (36). The master device transmits portions of a digital seismic data packet to the master at a different second time in a fixed-duration frame. The frames are transmitted at regular intervals. The outbound commands and inbound data are encoded by block codes. A phase-locked loop (54) in the slave is locked to a master clock (35) m the master by deriving a clock and a sync point from the block-coded commands it receives from the master. The block code representing each command bit minimizes de drift and provides a level transition in the command that can be used to maintain synchronism between master and slave.
Patent CA-2398081-C (CA)
Title: Universal tool handle for extension pole connectors
Inventor: GUITTAR BUFORD J
IPC: B05C17/02
Filed: 2001-01-26
Granted: 2009-12-29
Abstract: A paint roller assembly is disclosed as including a handle (12) that is configured for use with a variety of extension poles (60, 78, 92), each pole (60, 78, 92) requiring a different type of connection with the handle (12). The handle (12) includes a pole connector socket (38) extending inwardly from one end thereof that is designed to receive a number of different pole connectors (60, 78, 92). The socket (38) is provided with a tapered wall section (40b) and a circumferential groove (46). The tapered wall (40b) is configured to provide a press fit attachment between the handle (12) and connector (16, 82, 96). The groove (46) is configured to provide a snap fit attachment between the handle (12) and the connector (16, 82, 96). The handle (12) is particularly designed to be alternatively attached to a pole connector (82) for use with a standard externally threaded pole (78), a unique connector (16) configured specifically for use with a pole (60) having a unique push-button locking mechanism (68), and a tapered connector (96) used with extension poles (92) predominantly in Europe; although various other connectors adapted for press or snap fit attachment with the handle (12) may be used.