baber/WOPTO huggingface dataset:
Patent CA-2131813-C (CA)
Title: Improved surface-enhanced raman optical data storage system
Inventor: VO-DINH TUAN
IPC: B41M5/00
Filed: 1992-10-05
Granted: 1997-12-16
Abstract: An improved Surface-Enhanced Raman Optical Data Storage System (SER-ODS) is disclosed.  In the improved system, entities capable of existing in multiple reversible states are present on the storage device. Such entities result in changed Surface-Enhanced Raman Scattering (12) (SERS) when localized state changes are effected in less than all of the entities. Therefore, by changing the state of entities in localized regions of a storage device, the SERS emissions in such regions will be changed. When a write-on device is controlled by a data signal, such localized regions of changed SERS emissions will correspond to the data written on the device.  The data may be read by illuminating the surface of the storage device with electromagnetic radiation (36) of an appropriate frequency and detecting (40) the corresponding SERS emissions. Data may be deleted by reversing the state changes of entities in regions where the data was initially written. In application, entities may be individual molecules which allows for the writing of data at the molecular level. A read/write/delete head (32) utilizing nearfield quantum techniques can provide for a write/read/delete device (32) capable of effecting state changes in individual molecules, thus providing for the effective storage of data at the molecular level.
Patent CA-2132440-C (CA)
Title: Oxidation of metal sulfides using thermotolerant bacteria
Inventor: SPENCER PETER ANDREW
IPC: C22B3/18
Filed: 1992-03-20
Granted: 2003-09-23
Abstract: A process for recovering precious or base metals from particulate refractory sulfide materials comprises: a) contacting the sulfide material with an aqueous solution containing a thermotolerant bacteria culture capable of promoting ~ dation of the sul-fide material at a temperature in the range from 25 to 55°C, b) separating the oxidized residue from the aqueous liquid, and, c) treating the oxidized residue and/or the aqueous liquid to recover metal. In this context, a thermotolerant bacterium is one which has an optimum growth temperature of 40 to 45°C, and an operating temperature of 25 to 55°C.
Patent CA-2138122-C (CA)
Inventor: SHETH ANIL R
IPC: A61K9/127
Filed: 1993-06-16
Granted: 1999-01-12
Abstract: The present invention provides pharmaceutical preparations for inhibiting in vit ro and in vivo cancerous prostate, gastrointestinal and breast tumours. In one embodiment the pharmaceutical prepar ation includes prostatic inhibin peptide which may be administered in an appropriate dosage form, dosage quantity and dosage regimen t o a patient suffering from prostate cancer. In another embodiment the pharmaceutical preparation includes a mixture of prostati c inhibin peptide and a cancer drug which may be administered in an appropriate dosage form, dosage quantity and dosage re gimen to a patient suffering from, for example gastrointestinal cancer. The cancer drug of the latter mixture may be one select ed from the group of drugs including mitomycin, idalubicin, cisplatin, 5-fluorouracil, methotrexate, adriamycin and donomycin.
Patent CA-2141582-C (CA)
Inventor: MORELLA ANGELO MARIO
IPC: A61K9/22
Filed: 1993-07-23
Granted: 2003-09-30
Abstract: A pelletized sustained release pharmaceutical composition including a core element including approximately 0.1 to 95 weight, based on the total weight of the core element of an active ingredient of low aqueous solubility, approximately 0.1 to 55 by weight binding agent; approximately 5 to 99 % weight of a core seed; and a core coating for the core element, including ap-proximately 30 to 97 % by weight, based on the total weight of the core coating, excluding filler, of an enteric polymer; approxi-mately 3 to 50 % by weight of an insoluble polymer; and 0 to approximately 50 % by weight of plasticizer, the enteric polymer comprising at least approximately 70 % by weight of the total weight of the enteric polymer and insoluble polymer; the core coat-ing being such that the active ingredient is released in a controlled fashion over an extended period in the intestine but substan-tially no release occurs in the acid environment of the stomach and blood levels of active ingredient are maintained within the therapeutic range over an extended period of time.
Patent CA-2145218-C (CA)
Title: Prediction filter
Inventor: CLAYDON ANTHONY P J
IPC: H04N7/50
Filed: 1995-03-22
Granted: 1999-10-05
Abstract: An apparatus is disclosed for processing video information using a first and a second prediction filter circuit which are substantially identical, and a control signal to process video information encoded in multiple standards. A filter circuit, such as may be used in such an apparatus, for use in video decompression comprises a prediction filter formatter, a first one-dimensional prediction filter, a dimension buffer, and a second one-dimensional prediction filter. A prediction filter, such as may be used in such a filter circuit, may comprise six registers, two multiplexers, and two summing circuits. A first register is connected to a first summing circuit. A second register is connected to a first multiplexer, which is connected to the first summing circuit. The first summing circuit is connected to a third register. A fourth register is connected to a second multiplexer, which is connected to a fifth register. The third register and the fifth register are connected to a second summing circuit, which is connected to a sixth register.
Patent CA-2146769-C (CA)
Title: Fuel preheating system for internal combustion engines
Inventor: LEONARD PAUL D
IPC: F02M31/16
Filed: 1993-10-26
Granted: 1999-04-13
Abstract: A fuel preheating system for use with internal combustion engines is described. The system works on the principle that by preheating the fuel to an optimum temperature, more efficient combustion results . The fuel is preheated preferably by passing a fuel line (12) through a housing (2) which carries heated engine coolant from th e engine block (8) to the radiator (9). The preheated fuel is mixed with cooled or unheated fuel, to produce the desired fuel temperat ure. The mixing is controlled via a microprocessor (32), to produce the optimum temperature for the operating conditions at any giv en time, by sensing certain operating parameters (40, 42, 44, 52, 54) and regulating the mixing in response to those p arameters. Fuel consumption is monitored under steady state conditions, and the fuel temperature is adjusted to minimize the fu el consumption.
Patent CA-2149985-C (CA)
Title: Ink container
Inventor: SATO YOHEI
IPC: B41J2/175
Filed: 1995-05-23
Granted: 2001-08-07
Abstract: An ink container includes an ink storing portion for storing ink; an ink supplying portion for supplying ink to a recording head portion; an air vent for taking the atmospheric air into the ink container; and a hollow tube, one end of which opens to the atmosphere at the air vent, above the liquid level of the stored ink, and the other end of which opens within the ink container adjacent to the bottom portion of the ink container.
Patent CA-2153693-C (CA)
Title: Method for determining borehole direction
Inventor: NICHOLSON JAMES WILLIAM
IPC: E21B47/022
Filed: 1994-01-12
Granted: 2005-05-24
Abstract: A method for determining the direction of a borehole during drilling comprises determination of inclination angle .theta. and highside angle .PHI. from gravity acceleration ~ measurements and determination of azimuth angle .PSI. from magnetic field ~ measurements, the determinations being carried out in conventional XYZ-and-NEV coordinate systems coupled by Euler-angle coordinate transformations. In particular ~ and ~ are measured at least at two borehole depths such that ~i .noteq. ~i+1, .PSI.i and .PSI.i+1 being calculated from ~ i = [~i]T [.theta.i]T{[.PSI.i]T ~ e} + ~ P and sin2.PSI.i + cos2.PSI.i= sin2.PSI.i+1 + cos2 .PSI.i+1, with i as number of measurement, ~ e as local earth magnetic field, and B p as perturbating magnetic field. As a result perturbation magnetic fields, for example caused by hot spots or nearby magnetic steel components in the drilling or logging string nearby the B-measuring device, are determined accurately.
Patent CA-2157747-C (CA)
Inventor: BERTOCCHIO RENE
IPC: C07C17/389
Filed: 1995-09-07
Granted: 2007-11-13
Abstract: Pour éliminer les traces de chlorofluorométhane présentes dans un difluorométhane, on fait passer le difluorométhane à purifier sur un tamis moléculaire 13X à une température au moins égale à 60.degree.C. Le tamis peut être régénéré par lavage à l' aide d' une solution de carbonate de sodium ou de potassium et chauffage à température élevée sous atmosphère inerte ou sous vide.
Patent CA-2160662-C (CA)
Inventor: DONOGHUE SCOTT JOHN
IPC: C11D3/22
Filed: 1994-04-29
Granted: 1999-08-31
Abstract: The invention disclosed is a process for making a granular laundry detergent component or composition having a bulk density of at least 650 g/l, by dissolving a structuring agent in a nonionic surfactant, said structuring agent comprising  a polymer, to form a pumpable premix and finely dispersing said premix with an effective amount of powder at a given operating temperature wherein the premix has a viscosity of at least 350 mPas when measured at said operating temperature  and at a shear rate of 25s-1. Preferred structurants comprise polymers having more than one functional hydroxyl group, especially polyvinyl alcohols, polyhydroxyacrylic acid polymers, and polymers such as polyvinyl pyrrolidone and PVNO, as well as sugars, artificial sweeteners and their derivatives. The premix is then processed into a granular detergent by any suitable process. Fine dispersion mixing, agglomeration, or spraying the premix onto a granular base product are preferred.
Patent CA-2161311-C (CA)
Title: Apparatus and method for controlled drying of plastic pellets
Inventor: DOWNIE JOHN P
IPC: B29B13/06
Filed: 1995-10-24
Granted: 2000-05-02
Abstract: Apparatus and a method for the controlled drying of polymer plastic pellets within a dryer hopper are provided. A sensor tree having a plurality of temperature sensors spaced vertically on the tree is positioned vertically within the dryer hopper so that the individual sensors are each located at varying vertical distances from the bottom to the top of the dryer hopper. A target temperature for a particular type of polymer plastic pellet, when maintained for a specified residence time, indicates that the pellet is thoroughly dry for use in a manufacturing process. By determining the vertical level at which the target temperature has been achieved for the desired residence time, the amount of dry material within the hopper that is ready to be input to the manufacturing process is determined. A signal processing unit operating a software program automatically controls the throughput of the dryer hopper so that only dry polymer plastic pellets leave the hopper.
Patent CA-2162175-C (CA)
Title: Mobile tire shredder
Inventor: MERKLINGER PAUL
IPC: B65F3/28
Filed: 1994-05-03
Granted: 2007-07-10
Abstract: A motor truck for use in collecting and processing solid waste material such as scrap tires. The truck includes a chassis including a cab (18); a body structure (34) positioned on the chassis behind the cab and defining a storage chamber (35); a shredder (36) mounted on top of the body structure (34) forwardly of the storage chamber (35); a compactor (38) positioned within the body structure (34) beneath the shredder (36) and forwardly of the storage chamber (35); and a conveyor system (40) for conveying tires from a curbside location upwardly for discharge downwardly into the open upper end of the shredder (36). The shredded tires are discharged downwardly into the body structure (34) rearwardly of the compactor (38), whereafter the compactor (38) is actuated to stroke rearwardly and compress the tire shreds into the storage chamber. After the truck has visited a series of retail tire outlets and the storage chamber (35) is full of tire shreds, the truck returns to a recycling center where a door (42) at the rear of the storage chamber is opened and the compactor (38) is utilized as an ejector to eject the tire shreds from the storage chamber (35). At the recycling center the tire shreds are processed to form a rubber crump material and the rubber crump material is combined with scrap plastic to form a rubbber/plastic resin compound in pellet form.
Patent CA-2164931-C (CA)
Title: Process for preparing fatty acid alkyl esters
Inventor: MITTELBACH MARTIN
IPC: C07C69/52
Filed: 1994-07-08
Granted: 2005-09-27
Abstract: A method for the preparation of fatty acid alkyl esters by transesterification, in particular catalytic transesterification, of triglycerides, wherein from a reaction mixture, in which the transesterification is carried out, an ester phase and a glycerol phase containing fatty acids, fatty acid salts and/or other fatty acid compounds are formed, which are separated from each other, characterized in that the fatty acids, the fatty acid salts and/or other fatty acid compounds are separated from the glycerol phase, esterified with an alcohol and recycled to a different reaction mixture, in which a further transesterification is carried out. The method according to the invention allows for a transesterification with a high yield of fatty acid esters.
Patent CA-2166994-C (CA)
Title: Method of forming a hollow prosthesis
Inventor: EATON L DANIEL
IPC: B29C35/18
Filed: 1994-08-01
Granted: 1999-01-26
Abstract: A method of forming a hollow prosthesis includes the following steps: first, a mold (15), having lower mold (16) and upper mold (17), of a prosthetic article is created and the mold (15) is injected with room temperature vulcanizable plastic. The mold (15) containing the RTV plastic is maintained at a fixed temperature for a sufficient period of time for the outer most portions of the RTV plastic to form a plastic layer (18) in proximity to the inner surface of the mold (15) which is wall (21) of the final hollow prosthetic article. The RTV plastic article is then removed from the mold (15) and the remaining unvulcanized plastic (19) is expressed from the interior through an opening cut in the wall (21). The opening is then sealed and the entire article is allowed to completely cure. The prosthetic article thus created is a one piece seamless article conforming substantially to the shape of the mold (15).
Patent CA-2167836-C (CA)
Inventor: HASSENBOEHLER CHARLES B JR
IPC: B32B27/02
Filed: 1994-07-22
Granted: 2005-03-22
Abstract: A method for post treating a laminated precursor nonwoven web which includes layers of thermoplastic man-made fibers and at least one layer of cellulose-based staple natural fibers, including consolidating the web longitudinally and thereby reducing the maximum pore size measure of the web. The precursor web and the resultant consolidated nonwoven web am also disclosed, as is utilization of the product web in medical uses.
Patent CA-2173158-C (CA)
Inventor: ANIMATI FABIO
IPC: A61P35/00
Filed: 1994-09-26
Granted: 2006-02-07
Abstract: The present invention is referred to compounds of gen- eral formula (I) and (II), respectively their pharmaceutically acceptable salts, the process for their preparation, and the pharmaceutical compositions containing them.
Patent CA-2179748-C (CA)
Inventor: OSTERMAYER VOLKER
IPC: D21F11/00
Filed: 1995-07-31
Granted: 2004-04-20
Abstract: Tissu utilisable dans des machines à papier et plus particulièrement dans des machines de séchage sec à coeur. Le tissu comprend une surface de support du papier (A) comportant des rangées de poches diagonales espacées (40) de fibres à papier non comprimées sur la surface du papier formé dans ladite machine. Les rangées de poches (B) sont séparées par des bandes diagonales (44) de surface de support disposées sensiblement le long d'un plan unique. Les bandes diagonales constituent des zones de support sur la largeur des fibres à papier qui fixent solidement la feuille de fibres avec le tissu de fabrication de papier pendant la formation du papier. Les bandes produisent également des rangées diagonales de fibres à papier comprimées qui permettent de produire un produit en papier plus stable.
Patent CA-2189588-C (CA)
Title: Directory assistance method and apparatus
Inventor: COX PATRICK M
IPC: H04M3/42
Filed: 1996-11-04
Granted: 2007-04-10
Abstract: A cellular telephone subscriber who wishes directory assistance services is connected in the conventional manner to an operator who identifies a destination telephone number desired by the subscriber. As in the prior art, the operator then initiates a call connecting the subscriber to the destination telephone number. In a preferred embodiment, the operator locates a desired destination telephone number in a computer database, and can select automatic dialing of the located number. Further, rather than dropping all further involvement with the call, the preferred embodiment of the present invention continually monitors the connection thereby established for a predetermined DTMF signal issued by the customer, such as that obtained by pressing the "*" button. If such a signal is detected, the customer is transferred to a directory assistance operator, who can then provide whatever further assistance is needed (e.g. redialing a busy number, or providing further directory assistance). This feature can be disabled, manually or automatically, if the destination number makes its own use of the DTMF signals.
Patent CA-2194148-C (CA)
Title: Poste de charge universel et procede pour charger les batteries d'un vehicule automobile
Inventor: NOR JIRI K
IPC: H02J7/00
Filed: 1995-07-06
Granted: 1999-08-24
Abstract: L'invention concerne un procédé et un appareil pour charger la batterie (84) d'un véhicule électrique (80). Lorsqu'un véhicule électrique est connecté à un poste de charge (82), il est interrogé pour savoir quel type de dispositif (86) de contrôle de charge est à bord du véhicule. Le mode de charge sera choisi d'une manière logique en fonction de la nature et du type du dispositif de contrôle de charge à bord du véhicule. Ainsi, l'alimentation en énergie de la batterie (84) du véhicule peut se faire entièrement sous le contrôle du dispositif (86) de contrôle de charge à bord du véhicule. Par contre, si le module de contrôle du véhicule est peu sophistiqué, à ce moment l'alimentation en énergie électrique se fera sous le contrôle d'un module de charge propre au poste de charge. Les paramètres que sont la tension et l'intensité initiales sont donc fixés soit par le dispositif de contrôle de charge à bord du véhicule, soit par le dispositif de contrôle de charge propre au poste de charge. On peut également choisir ces paramètres manuellement ou en insérant une carte dans une interface de commande pour fixer les conditions initiales de charge. On peut concevoir une installation comportant plusieurs postes de charge permettant de charger dans des conditions contrôlées les batteries de plusieurs véhicules soit parallèlement, soit successivement, en fonction des besoins. Le poste de charge peut être privé et desservir un parc de véhicules. On peut également concevoir des postes de charge accessibles au public, par exemple dans une station-service.
Patent CA-2197438-C (CA)
Inventor: THOMAS JOHN HALL
IPC: B65D50/08
Filed: 1995-05-03
Granted: 2001-09-18
Abstract: A package (10) suitable for storing and dispensing potentially dangerous material, which is resistant to opening by childern yet readily openable by adults. The package is preferably a bottle (14) which has a body and a finis h portion (24). The finish portion (24) has a threaded outer (28) end for mati ng with a closure (12). A resiliently deformable cantilevered beam (32) is connected to the finish portion (24) between the threaded outer end (28) and  the body of the bottle (26). The beam (32) is angled outward and downward fr om the finish portion (24). The beam (32) has a substantiallly vertical locking  surface (36) and a pushtab (34) spaced along the beam (32). The angle of the  beam (32) is such that the pushtab (34) may be depressed substantially radially toward the finish portion (24). The locking surface (36) is located  between the finish portion (24) and the pushtab (34) so that depression of t he pushtab (34) results in a greater beam deflection and lower deflection force  at the pushtab (34) than at the locking surface (36). A bottle closure (12) has threads for rotatably securing the closure (12) to the finish portion (2 4) of the bottle. The closure (12) also has a tooth projecting (22) radially inward from its lower inner surface and so shaped and positioned that it wil l engage thelocking surface (36) of the resilient beam (32) whenever there is an attempt to unscrew the closure. It thereby prevents removal of the closur e (12) until the pushtab (34) is manually depressed to disengage the closure tooth (22) from the locking surface (36) of the cantilevered beam (32).</SDO AB>
Patent CA-2197613-C (CA)
Title: Composition and method for under-eye skin lightening
Inventor: SCANCARELLA NEIL D
IPC: A61K8/34
Filed: 1997-02-14
Granted: 2007-01-16
Abstract: Disclosed is a composition for topical treatment of skin comprising the use of live yeast cell derivative in combination with a suitable vehicle, for treating discolorations and bagg-mess in facial skin below the eyes.
Patent CA-2199505-C (CA)
Title: Automated league and tournament system for electronic games
Inventor: ZASTERA STEPHEN ROBERT
IPC: F41J3/02
Filed: 1995-09-05
Granted: 2009-05-26
Abstract: A league and tournament system (10) is disclosed which includes a centralize d league machine (12) that transmits data to one or more of a plurality of electronic dart games via modem (16) or using a wireless portable data storage device (22). Transmission of information from the electronic dart machines can be via modem, facsimile transmission, or using the portable data storage device. The electronic dart machines (14) are configured to receive and utilize league and tournament database information from the league machine for a variety of purposes, including automatic implementation of player handicaps, automatic control of match play, and team and player registration using the dart machine. The dart machine has a monitor that displays context sensitive menus using information obtained from the league or tournament database. The dart machine includes a barcoded card reader (32) that permits identification of league and tournament participants using bar code cards.
Patent CA-2199761-C (CA)
Title: Developing a channel impulse response by using distortion
Inventor: WANG JIN-DER
IPC: H04B1/64
Filed: 1997-03-12
Granted: 2000-06-20
Abstract: A digital audio broadcasting (DAB) system includes a radio-frequency (RF) receiver that develops a characterization signal representative of a respective mobile communications channel as a precursor to estimating a channel impulse response. The latter is used to set coefficients of an equalizer of the receiver to compensate for distortion such as intersymbol interference. In generating the channel impulse response a Fast Fourier Transform (FFT) of the characterization signal is performed. The resulting FFT is then clipped such that frequency components above a predetermined upper threshold and less than a predetermined lower threshold are set to the respective threshold values. This allows coefficients for the equalizer to be generated such that the equalizer converges even in the presence of strong reflections in a mobile communications environment.