baber/WOPTO huggingface dataset:
Patent CA-2174400-C (CA)
Title: Polymere d'ethylene et procedes pour son obtention
Inventor: BREULET JACQUES
IPC: C08F4/655
Filed: 1996-04-17
Granted: 2008-09-09
Abstract: Polymère d'éthylène présentant un taux de gonflement (T G) d'au moins 1,4, une résistance à la fissuration sous contrainte (ESCR) d'au moins 55 h et un indice de fluidité (MI5) d'au moins 0,2 g/10 min. Procédés d'obtention de ce polymère d'éthylène à l'aide de systèmes catalytiques différents, le premier à base de titane et de zirconium mis en oeuvre dans une polymérisation en deux réacteurs; le deuxième constitué d'un mélange d'un catalyseur au titane et d'un catalyseur au titane et au zirconium, mis en oeuvre dans une polymérisation en deux réacteurs; le troisième à base de chrome sur un support comprenant au moins deux constituants choisi parmi la silice, l'alumine et le phosphate d'aluminium, mis en oeuvre dans une polymérisation en un seul ou en deux réacteurs.</SDOA B>
Patent CA-2175091-C (CA)
Title: Controlled release naproxen tablets
Inventor: SHERMAN BERNARD CHARLES
IPC: A61K31/19
Filed: 1996-04-26
Granted: 1999-01-05
Abstract: A controlled release pharmaceutical tablet suitable for daily dosing comprising naproxen and about 3 weight percent of HPMC having a number average molecular weight of about 190,000.
Patent CA-2176745-C (CA)
Inventor: STANLEY CHRISTOPHER JOHN
IPC: C12Q1/6813
Filed: 1994-11-22
Granted: 2004-05-25
Abstract: A nucleic acid analog comprising a polymeric strand which includes a sequence of ligands bound to a backbone made up of linked backbone moieties, which analog is capable of hybridization to a nucleic acid of complementary sequence, further comprising a chelating moiety capable of binding at least one metal ion by chelation.
Patent CA-2176846-C (CA)
Title: Multi-layer fluid curtains for furnace openings
Inventor: SHARMA SUDHIR KUMAR
IPC: F27D99/00
Filed: 1992-07-03
Granted: 1999-09-28
Abstract: An apparatus and method for providing a selected atmosphere at and within an opening to the interior volume of a furnace.  Two or more paralleled diffusers adjacent to the furnace opening laminarly emit different fluids and provide a multi-layer fluid curtain over the opening.  The curtain has a composite modified Froude number from 0.05 to 10, and a thickness at emission of at least 5% of its extent in the flow direction.  Partially covering the outside of the curtain is an optional, substantially flat, outer shield with an aperture coinciding with the furnace opening, which reduces the necessary flow rates of fluids.  Optional side shields around the sides of the curtain also reduce the necessary fluid flow.     A preferred diffuser comprises a porous tube in a housing with an outlet directed to emit fluid across the furnace opening.  The outlet is covered with a screen to disperse the fluid flow and to protect the porous tube.
Patent CA-2179378-C (CA)
Title: A layered, absorbent structure, an absorbent article comprising the structure, and a method for the manufacture thereof
Inventor: PALUMBO GIANFRANCO
IPC: A61F13/15
Filed: 1994-12-19
Granted: 2000-08-22
Abstract: A thin, layered, absorbent structure comprises first and second layers (1, 2) of fibrous material and an intermediate layer (5) comprising particles of a hydrogelling, absorbent material (6), in an amount exceeding 120 g/m2, and particles of a thermoplastic, polymeric, organic material (7); the first and second fibrous layers (1, 2) extend beyond the intermediate layer (5) laterally to form longitudinal edge portions (8). The two fibrous layers (1, 2) are bound together with the intermediate layer (5) between them by the melting of the particles of thermoplastic, polymeric, organic material (7) and by means of a continuous line (10) of adhesive extending longitudinally on each longitudinal edge portion (8).
Patent CA-2180065-C (CA)
Inventor: IKEDA SHIGEJI
IPC: G10L21/0208
Filed: 1996-06-27
Granted: 2000-04-04
Abstract: The object of the present invention is to provide a noise cancelling method and a noise canceller where the shortening of the convergence time and the reduction in the distortion (residual error) after the convergence can be realized.     A second adaptive filter outputs a pseudo noise signal by receiving a reference signal from a reference signal input terminal. A subtracter subtracts an output pseudo noise signal of the second adaptive filter from a receiving signal input from a speech signal input terminal, and supplies the subtraction result to the second adaptive filter as an error signal. A divisor circuit divides an output speech signal power of a power averaging circuit obtained from the output error signal of the subtracter by an output noise signal power of another power averaging circuit obtained from the output pseudo noise signal of the second adaptive filter, and outputs the result of the division as an estimated value of the signal to noise ratio (SNR). A step size output circuit operates so as to receive the output signal of a signal to noise ratio estimating circuit as an input, and output a value corresponding to the input SNR value as the step size for a first adaptive filter.
Patent CA-2184219-C (CA)
Inventor: LEE RON C
IPC: F17C9/02
Filed: 1996-08-27
Granted: 1999-07-20
Abstract: An apparatus for storing a multi-component cryogenic liquid in which headspace vapor in a storage tank is condensed in an external condensation tank through indirect heat exchange with liquid being vented from the storage tank. The resulting condensate can then be re-introduced into the storage tank through a pressure building circuit applied to the external condensation tank. In such manner, the pressure within the storage tank is regulated and the composition of the liquid stored within the storage tank is held with some degree of consistency. The use of an external condensation tank allows prior art cryogenic storage tanks and dewars to be retrofitted to store a multi-component cryogenic liquids.
Patent CA-2187424-C (CA)
Title: Method and apparatus for the remote control and monitoring of production wells
Inventor: TUBEL PAULO S
IPC: E21B47/00
Filed: 1996-02-09
Granted: 2006-04-18
Abstract: A system adapted for controlling and/or monitoring a plurality of production wells from a remote location is provided.  This system is capable of controlling and/or monitoring (1) a plurality of zones in a single production well; (2) a plurality of zones/wells in a single location (e.g. a single platform); or (3) a plurality of zones/wells located at a plurality of locations (e.g. multiple platforms).  The multizone and/or multiwell control system of this invention is composed of multiple downhole electronically controlled electromecanical devices and multiple computer based surface systems operated from multiple locations. Important functions for these systems include the ability to predict the future flow profile of multiple wells and to monitor and control the fluid or gas flow from either the formation into the wellbore, or from the wellbore to the surface.  The control system of this invention is also capable of receiving and transmitting data from multiple remote locations such as inside the borehole, to or from other platforms, or from a location away from any well site.  The system further provides the possibility of communication between plural zones in a single well or between the zones in a single well or between the zones of different wells, the communication taking place between downhole telemetry devices.
Patent CA-2187487-C (CA)
Title: Rotating magnet for distance and direction measurements
Inventor: KUCKES ARTHUR F
IPC: E21B47/022
Filed: 1996-10-09
Granted: 2005-09-13
Abstract: A method for determining the distance and direction from a first borehole to a second borehole includes generating, by way of a rotating magnetic field source at a first location in a second borehole, and elliptically polarized magnetic field in the region of the first borehole. First and second sensors positioned at an observation point in the first borehole measure the amplitude and relative phase of respective first and second components of the polarized magnetic field and from these measurements, the direction, relative to the sensors, from the observation point to the first location is determined. The distance between these points is determined by measuring at plural observation points amplitude variations with depth of the rotating magnetic field in the first borehole, and computing theoretical variations in the amplitude for different assumed distances between the observation points and the location of the magnetic field source. The measured amplitude variations are compared with theoretical variations to determine the distance between the first and second boreholes.
Patent CA-2195367-C (CA)
Title: Base assembly for maintaining elongated support upright
Inventor: TRINIER PAUL EDWARD
IPC: A45F3/44
Filed: 1997-01-17
Granted: 2007-11-20
Abstract: The base assembly is removably received in a hollow end portion of a column which is used to support such things as handles of umbrellas, flag poles or legs of chairs and tables.  The assembly includes a plug which is received in the end portion and which has a number of longitudinally extending cavities formed in it. The upper portions of a number of legs are received in the cavities and a plate is bolted to the plug for holding the leg portions in place. Instead of a plug the assembly can have upper and lower plates which are spaced apart from one another. The upper leg portions are received in openings in the plates and are held in place by means of a leg-retaining plate which is bolted to the first two plates.
Patent CA-2196934-C (CA)
Inventor: LANE-SMITH DEREK R
IPC: G01T1/16
Filed: 1997-02-06
Granted: 2004-10-12
Abstract: A method and apparatus for measuring the concentration of unattached Radon progeny in air is described. The method consists of measuring the conductivity of the air or alternatively the concentration of fast ions in the air, and converting the measurement to a concentration of unattached Radon progeny by applying a predetermined ratio found to exist between conductivity and the concentration of unattached Radon progeny on the one hand, or between the concentrations of fast ions and unattached Radon progeny on the other hand. Apparatus for implementing the method includes means for measuring conductivity (or fast ion concentration), means for calculating the concentration of unattached Radon progeny using the predetermined ratios and output means for displaying the result of the calculation.
Patent CA-2200149-C (CA)
Inventor: UCHIYAMA FUMIO
IPC: F03G3/00
Filed: 1997-03-17
Granted: 2000-11-14
Abstract: A driving  apparatus is disclosed.  A rotatable disk has a first magnet  alley that  including a plurality of  first permanent magnets arranged along a periphery of the disk.  A reciprocal device has a second magnet alley that includes a plurality of second permanent magnets in association with the first permanent magnets.   Each second permanent magnet is movable between two positions to attract and repel the first permanent magnet.
Patent CA-2201447-C (CA)
Inventor: KRINSKI THOMAS L
IPC: D21H19/10
Filed: 1997-04-01
Granted: 2003-12-02
Abstract: A protein adhesive is provided for use as an adhesive binder in a paper coating composition. The protein adhesive contains a protein material, a divalent dispersing agent, preferably an alkaline earth oxide or alkaline earth hydroxide, and a cation binding agent. The protein material is effective for use as an adhesive binder. The dispersing agent is combined with the protein material in an amount effective to adjust the pH of an aqueous solution of the protein material sufficiently to substantially solubilize the protein material. The cation binding agent is combined with the protein material and the dispersing agent in an amount effective to inhibit cation induced protein gel formation in an aqueous solution containing the protein adhesive. A process for forming a protein adhesive for a paper coating composition using a divalent dispersing agent, preferably an alkaline earth oxide or alkaline earth hydroxide, is also provided.
Patent CA-2201672-C (CA)
Inventor: HANUSA LOTAR H
IPC: B29C44/38
Filed: 1997-04-03
Granted: 2005-01-25
Abstract: The present invention is directed to an improved method for preparing a product by introducing a rigid polyurethane foam formulation into a cavity defined by two spaced apart formed sheets and allowing the formulation to foam. In one embodiment, the improvement resides in providing at least one of the sheets with a portion having the shape of a gate of the type used in polyurethane reaction injection molding and introducing the formulation through that gate so that the formulation enters the cavity as a laminar stream.
Patent CA-2208842-C (CA)
Title: Booster system
Inventor: ITO KAZUHITO
IPC: H04B7/155
Filed: 1996-10-28
Granted: 2001-01-16
Abstract: A booster system for transmitting a received wave after amplifying it comprises a receiving antenna section, a carrier combining section, a transmitting section, a transmitting antenna section and a parameter control section.      The carrier combining section multiplies a canceling signal by a cancel parameter to obtain a replica signal, then combines it with a received signal in at least one of the radio frequency band, the intermediate frequency band and the base band, and derives a combined base band signal from the combined signal. The transmitting section generates a send signal and a canceling signal by using a signal demodulated through the demodulation of the combined base band signal.    Based on the combined base band signal and the canceling signal, the parameter control section determines a canceling parameter such that the power of the combined base band signal is reduced, the parameter being provided to the carrier combining section.
Patent CA-2210239-C (CA)
Inventor: CAMPBELL DAVID W
IPC: E21B43/12
Filed: 1997-07-11
Granted: 1998-11-17
Abstract: The invention is a tubing head for accommodating a rotator. The rotator includes a drive gear and a swivel tubing hanger which engages an internal surface of the tubing head and comprises a driven gear for engaging the drive gear. The tubing head defines a gear housing for the drive gear so that the drive gear may releasably engage the driven gear. The internal surface, gear housing and drive and driven gears are configured such that when the drive gear is in the gear housing, the tubing hanger engages the internal surface and the drive and driven gears are engaged, the tubing hanger may be removed from the tubing head by pulling it through the upper end without first disengaging the drive and driven gears. The invention is also an apparatus comprising the tubing head, the swivel tubing hanger and the drive gear.
Patent CA-2211061-C (CA)
Inventor: MAYER FATIMA M
IPC: C09D11/00
Filed: 1997-07-21
Granted: 2000-11-14
Abstract: An ink composition comprised of a colorant and a vehicle component, and which vehicle component is comprised of the condensation product of an organic acid and an amino alcohol.
Patent CA-2211376-C (CA)
Title: Ecran ophtalmique bio-erodable
Inventor: NIGAM ALOK
IPC: A61F9/007
Filed: 1996-02-13
Granted: 2000-10-24
Abstract: La présente invention concerne des écrans ophtalmiques bio-érodables comportant de la gélatine, un glycosaminoglycane (par exemple du sulfate de chondroïtine) et de la carboxyméthylcellulose. Elle traite également d'un procédé permettant de traiter un traumatisme oculaire ou un "oeil sec" au moyen de l'administration, à l'oeil traumatisé, d'écrans ophtalmiques à base de gélatine. Ces écrans ophtalmiques sont bio-compatibles et bio-érodables dans les yeux traumatisés, non traumatisés et les "yeux secs". Lesdits écrans ophtalmiques à base de gélatine peuvent en outre comporter au moins une substance thérapeutiquement active qui sera diffusée dans l'oeil.
Patent CA-2216658-C (CA)
Inventor: SWAIN PHILIP A
IPC: A61K39/385
Filed: 1996-03-27
Granted: 2008-05-13
Abstract: Hapten-carrier conjugates capable of eliciting anti-hapten antibodies in vivo by administering, in a therapeutic composition, are disclosed. Methods of preparing said conjugates and therapeutic compositions are also disclosed. Where the hapten is a drug of abuse, a therapeutic composition containing the hapten-carrier conjugate is particularly useful in the treatment of drug addiction, more particularly, cocaine addiction. Passive immunization using antibodies raised against conjugates of the instant invention is also disclosed. The therapeutic composition is suitable for co-therapy with other conventional drugs.
Patent CA-2219308-C (CA)
Inventor: JAKSCH PETER
IPC: C07D211/60
Filed: 1996-04-30
Granted: 2007-12-18
Abstract: New process for the preparation of ropivacaine hydrochloride monohydrate adapted for production in the plant, which process includes three steps.
Patent CA-2226082-C (CA)
Title: Photochemically cross-linked polysaccharide derivatives having no photopolymerisable functional groups
Inventor: FRANCOTTE ERIC
IPC: C07D213/50
Filed: 1996-07-17
Granted: 2007-04-17
Abstract: The invention relates to substantially photochemically cross-linked polysaccharide derivatives that do not contain photopolymerisable functional groups prior to the cross-linking, which can be used as carrier materials for the chromatographic separation of enantiomers. The present invention relates to photochemically cross-linked polysaccharide derivatives in which the OH groups as OR groups have been esterified or converted into carbamate (urethane) or mixtures thereof, with the proviso that the OR groups do not contain polymerisable double bonds prior to the cross-linking. The photochemically cross-linked polysaccharides according to the invention in conditioned form can also be used as pure polymer for the chromatographic separation of enantiomers.
Patent CA-2226997-C (CA)
Inventor: LUSH ALAN CHARLES
IPC: B05B13/04
Filed: 1998-01-14
Granted: 2002-01-01
Abstract: A linear oscillating stroke reciprocator comprises a frame, a rectilinear post carried by the frame, a carriage mounted on the post for linear motion therealong, and a drive arm pivoted to the frame at one end and connected to the carriage through a lost motion device. This lost motion device takes up longitudinal movements of the drive arm while transmitting movements of the drive arm at right angles thereto to the carriage. The reciprocator includes a rotary drive which drives an eccentric drive. A drive lever is pivotally connected at one end to the drive arm and at the other end to the eccentric.
Patent CA-2227093-C (CA)
Inventor: BONDOC ALFREDO A
IPC: E04D1/26
Filed: 1998-01-15
Granted: 2007-05-22
Abstract: This invention relates to a unitary roofing shingle sheet comprising (a) an undivided top section having an unexposable upper portion and a lower portion carrying a partially exposable horizontal band of distinguishable colors or color patterns and (b) exposable tabs in a butt bottom section depending from the lower boundary of the band in the partially exposable portion of (a); the exposable portions of said shingle being covered with weather resistant granules of distinguishable hues or patterns disposed in discrete exposable areas in the band of section (a) and on each of said tabs so as to provide a distinctive color or pattern for each tab and a contrasting color or color pattern above each tab in the adjoining exposable portion of said band of section (a). In the shingle of the invention, the band of distinctive hues or patterns in the lower undivided portion of sect:ion (a) has a width approximately equal to the average height of the tabs in section (b); the tabs are spaced from each other by between about 0.5 and about 1.5 times the horizontal dimension of the tabs and the upper nonexposed portion of undivided section (a) has a width about equal to the width of said band plus y, wherein y has a value of from 1 to 5 inches.
Patent CA-2229356-C (CA)
Title: Procede de coagulation d'un fromage en continu
Inventor: TORTOSA PEDRO J
IPC: A23C19/028
Filed: 1996-08-09
Granted: 2001-11-06
Abstract: L'invention concerne un procédé pour former un ruban continu de fromage à partir d'un précurseur de fromage. Un système de transporteur à bande modifiée est utilisé pour retenir et transporter le précurseur de fromage liquide, qui, au cours du transport, se solidifie pour former une bande continue de fromage, évacuée à l'extrémité du transporteur.
Patent CA-2231961-C (CA)
Inventor: ORTEGA JEAN-MARC
IPC: B64C13/42
Filed: 1998-03-11
Granted: 2006-10-17
Abstract: Control device for an aircraft roll or pitch control surface (116). The device comprises at least two actuators (110, 112, 114), each with at least one electrical control input (111a, 113a, 115a). At least one of the actuators (115), called the hybrid actuator, also has a mechanical control input (115b). An electrical control system for the actuators may be in a "normal flight" state in which at least one of the actuators actuates the control surface (116), or a "maneuver" state in which at least two actuators actuate the control surface, or an "electrical control failure" state in which the hybrid actuator (115) actuates the control surface controlled from the mechanical control input.
Patent CA-2236837-C (CA)
Title: Detection of mammary tumor virus-like sequences in human breast cancer
Inventor: HOLLAND JAMES F
IPC: C07H21/04
Filed: 1996-11-08
Granted: 2009-01-27
Abstract: The present invention relates to materials and methods for diagnosing breast cancer in humans. It is based, at least in part, on the discovery that a substantial percentage of human breast cancer tissue samples contained nucleic acid sequences corresponding to a portion of the mouse mammary tumor virus env gene. In contrast, such sequences were absent in almost all other human tissues tested.
Patent CA-2239476-C (CA)
Inventor: HAND BRYAN
IPC: B22D25/00
Filed: 1998-06-03
Granted: 2003-03-18
Abstract: A cast pulverizer grinding ring made of cast brittle, white-cast iron has increased resistance to failure by being provided with a mechanically intricate, lightweight ductile material system embedded in the brittle metal. The surface of the embedded material is coated, prior to casting, with a slurry of magnesium oxide particles in an alcohol vehicle together with a small amount of Bentonite particles (siliceous clay) and heat cured organic binder which resists attack by the molten metal and which avoids strong bonding with the solidified cast metal. The ductile embedment itself is a lightweight structure advantageously expanded metal. The intimate contact between the ductile embedment and the cast metal provides structural support while the lack of a strong bond between the ductile embedment and the cast iron allows an elastic/plastic deformation of the ductile steel forming the embedment to differ from that of the white-iron material cast therearound. The embedded ductile material holds the grinding ring together even if a through crack occurs.
Patent CA-2239595-C (CA)
Title: Office system comprising linkable desk and storage units
Inventor: MCALLISTER MICHAEL L
IPC: A47B83/00
Filed: 1998-06-03
Granted: 2004-03-16
Abstract: An office furniture system of free standing furniture elements which can be linked to each other comprises a modular desk unit and a modular storage unit.  The modular storage unit occupies the same floor footprint as a rectangular desk unit. The separate storage unit enhances the storage capacity of an office layout since the mounting of drawers and shelves are not limited by the desk unit configuration. The storage unit has compatible lay-in wiring trays, accepts compatible modular power components and accepts the same privacy partition panels and other accessories as are mounted to the desk units. When the desk unit and the storage unit are linked into an integrated office design, a continuous pathway is provided for the electrical, communication and data wiring required for the office system. Power cables are physically separated from the data and communication wires. Since the vertical space above the wiring trays remains accessible, cabling can be easily routed at any time through the system, enhancing office system expansion and design.