baber/WOPTO huggingface dataset:
Patent CA-2322682-A1 (CA)
Title: Extraction of valuable metal by acid cyanide leach
Inventor: ROBINSON LEE FISHER
IPC: C22B3/00
Filed: 1999-03-02
Abstract: A process for extracting at least one valuable metal from starting material comprising a plurality of metallic compounds including (i) said at least one valuable metal and/or compound thereof, (ii) oxide of at least one other metal, and optionally (iii) sulphide of the same or different other metal, which process includes treating the starting material with liquid leaching agent containing (iv) acid and a source of halide ions, and with the same or different liquid leaching agent containing (v) a source of cyanide ions, so as to solubilise said valuable metal(s), and whereby liquor obtained from the treatment with leaching agent which contains said solubilised valuable metal(s) is caused to contact valuable metal-retaining means wherein said valuable metal(s) is (are) retained.
Patent CA-2327659-A1 (CA)
Title: Rotary filtration device with flow-through inner member
Inventor: HODGINS LEONARD T
IPC: B01D29/11
Filed: 1999-03-18
Abstract: Rotary filtration devices have at least one inner member (36) and at least one outer member (26), which rotate and define a fluid filtration gap (48) therebetween. During filtration, permeate passes from the feed fluid in the gap (48) through the filters (34) facing the gap (48). The inner member (36) has an internal pathway (46) for the flow of feed fluid.      Fluid to be filtered flows from the body of the feed fluid through the internal pathway (46), reverses direction (70), and flows through the filtration gap (48) back to the body of the feed fluid. Alternatively, fluid to be filtered passes from the body of the feed fluid through the fluid filtration gap (48), reverses direction, and flows through the internal pathway (46) back to the body of the feed fluid. The outer member (26) may be closed so that feed keeps circulating in the fluid filtration gap (48) until it leaves through the filter (34) as permeate or reenters the surrounding reservoir (60) of feed fluid.
Patent CA-2332562-A1 (CA)
Inventor: GOSLING STEVEN
IPC: B65D77/06
Filed: 1999-05-10
Abstract: A disposable liquid containing and dispensing package. The package has a flexible bag with an upper (15) and a lower (20) bag wall. The upper and lower bag walls have a periphery (25, 30, 35) and a middle portion. The upper bag wall has a spout (50) positioned within the middle portion of the wall. The spout has a first side and a second side. A dip strip (60) is attached to the upper bag wall on the first side of and spaced apart from the spout and attached to the middle portion of the upper bag wall on the second side of and spaced apart from the spout.
Patent CA-2332861-A1 (CA)
Title: Fischer-tropsch processes and catalysts using fluorided alumina supports
Inventor: HERRON NORMAN
IPC: B01J27/128
Filed: 1999-05-20
Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention the catalyst used in the process includes at least one catalytic metal for Fischer-Tropsch reactions (e.g., iron, cobalt, nickel and/or ruthenium); and a support selected from the group consisting of an aluminum fluoride and fluorided aluminas.
Patent CA-2333901-A1 (CA)
Title: Low adenosine anti-sense oligonucleotide agent, composition, kit and treatments
Inventor: NYCE JONATHAN W
IPC: A61K38/00
Filed: 1999-08-03
Abstract: A composition comprises a nucleic acid comprising an oligo anti-sense to a target such as polypeptide(s) associated with an ailment afflicting lung airways, genes and mRNAs encoding them, genomic and mRNA flanking regions, intron and exon borders and all regulatory and functionally related segments of the genes and mRNAs encoding the polypeptides, their salts and mixtures.  Various formulations contain a requisite carrier, and optionally other additives and biologically active agents. The agent of the invention may be prepared by selecting a target gene(s), genomic flanking region(s), RNA(s) and/or polypeptide(s) associated with a disease(s) or condition(s) afflicting lung airways, obtaining the sequence of the mRNA(s) corresponding to the target gene(s) and/or genomic flanking region(s), and/or RNAs encoding the target polypeptide(s), selecting at least one segment of the mRNA which may be up to 60 % free of thymidine (T) and synthesizing one or more anti-sense oligonucleotide(s) to the mRNA segments which are free of adenosine (A) by substituting a universal base for A when present in the oligonucleotide. The agent may be prepared by selection of target nucleic acid sequences with GC  running stretches, which have low T content, and by optionally replacing A in the anti-sense oligonucleotides with a AUniversal base@. The agent, composition and formulations are used for prophylactic, preventive and therapeutic treatment of ailments associated with impaired respiration, allergy(ies) and/or inflammation, such as pulmonary vasoconstriction, inflammation, allergies, asthma, impeded respiration, lung pain, cystic fibrosis, bronchoconstriction, pulmonary hypertension and bronchoconstriction, chronic bronchitis, emphysema, chronic obstructive pulmonary disease (COPD), acute respiratory distress syndrome (ARDS), ischemic conditions including ischemia itself, and cancers such as leukemias, lymphomas, carcinomas, and the like, e.g. colon cancer, breast cancer, pancreatic cancer, lung cancer, hepatocellular carcinoma, kidney cancer, melanoma, hepatic metastasis, etc., as well as all types of cancers with may metastasize or have metastasized to the lung(s), including breast and prostate cancer. The present treatment is suitable for administration in combination with other treatments, e.g. before, during and after other treatments, including radiation, chemotherapy, antibody therapy and surgery, among others. The present agent is effectively administered preventatively, prophylactically or therapeutically by itself for conditions without known therapies, or as a substitute for, or in conjunction with, other therapies exhibiting undesirable side effects. The treatment of this invention may be administered directly into the respiratory system of a subject, so that the agent has direct access to the airways and the lungs.
Patent CA-2335916-A1 (CA)
Title: Method and system for producing when a call is received on a standard portable telephone, a sound signal as powerful as a domestic telephone set ringing signal
Inventor: FATER VLADIMIR
IPC: H04M1/72412
Filed: 1999-07-01
Abstract: The invention concerns a method and a system for producing, when a call is received on a standard portable telephone, a sound signal as powerful as a domestic telephone set ringing signal. Said method comprises steps which consists in: autonomous detecting (1) by the telephone directly or indirectly, the transmitting station call and generating a detection signal; triggering (2, 3) by means of said detection signal, a sound signal transmission as powerful (4) as a domestic telephone set ringing signal. Thus, the user of a standard radio-telephone is informed about a call even he is at some distance from the standard radio-telephone.
Patent CA-2336540-A1 (CA)
Title: An in-line method for determining the residue content of an isocyanate and apparatus useful therefor
Inventor: HUNT ROBERT N
IPC: G01N21/35
Filed: 1999-06-29
Abstract: An in-line spectrometric method for determining the distillation residue content in an opaque, dark-colored mixture containing an isocyanate and tar-like materials (residue) during the isocyanate production process. A probe capable of directing light at wavelenths of from 1050 to 2150 nm is inserted in a stream of the residue-containing mixture and light is transmitted through the stream. Light absorption data is collected and a near-infrared spectrum is generated. The residue content is then determined using a chemometric model.  Knowledge of the residue content makes it possible to control and optimize the distillation process.
Patent CA-2336876-A1 (CA)
Inventor: HORNBACK JERRY BRIAN
IPC: F01N13/14
Filed: 1999-07-07
Abstract: An exhaust component for treating exhaust gas is provided. The exhaust component includes first and second end caps (18, 20), an inner shell (30) coupled to the first and second end caps (18, 20), and an outer shell (32) coupled to the first and second end caps (18, 20). A channel (84) is defined between the inner shell (30) and one of the first and second end caps (18, 20). A portion (80) of the outer shell (32) is positioned in the channel (84) to move longitudinally through the channel (84) relative to the inner shell (30). The outer shell (32) includes a notch (64) that is spaced apart from the inner shell (30). The notch (64) is configured to change shape to permit the outer shell (32) to move circumferentially relative to the inner shell (30).
Patent CA-2338521-A1 (CA)
Inventor: OLIVER RICHARD
IPC: A24D1/00
Filed: 1999-08-06
Abstract: A method of incorporating fibriform smoke-modifying material in smoking material rod, wherein fibriform smoke-modifying material is fed longitudinal ly thereof to a rod making machine (1). The longitudinal feed path in the machi ne is in a travel direction of the smoking material deposition run of the sucti on band (3) of the machine. The fibriform material (13) is either constrained b y guide means (15) in the machine to follow a feed path spaced from the run (3 1) of the suction band against the suction force towards the run or the feed pa th of the fibriform smoke-modifying material is caused to ascend toward the deposition run under the influence of the suction force towards the run, unt il at a predetermined distance along the deposition run the fibriform material becomes supported and is subsequently maintained at a predetermined distance  from the run by particulate smoking material (20) deposited on the run. Thereafter further smoking material (20') is deposited on the deposition run .
Patent CA-2341147-A1 (CA)
Inventor: MAHER OMAR AMIN
IPC: A01K59/04
Filed: 2001-03-19
Abstract: Improved honey extraction devices are provided by increasing the number of honeycomb baskets carried by centrifugal honey extraction devices. The designs of prior art extractors are altered by either incorporating multi-layer honeycomb basket assemblies into their design or providing additional honeycomb baskets substantially aligned with the honeycomb baskets pre-existing in the prior art designs. The multi-layer honeycomb basket assemblies include a first honeycomb basket having an interior for retaining a honeycomb and at least a second honeycomb basket having an interior for retaining a honeycomb. The second honeycomb basket is substantially aligned with the first honeycomb basket and a gap is provided between the first and second honeycomb baskets. A barrier is positioned between the interior of the first honeycomb basket and the interior of the second honeycomb basket. Additional baskets may also be provided in a similar manner. multi-layer honeycomb basket assemblies may be incorporated into the design of typical tangential extractors, such as non-reversible tangential extractors, reversible tangential extractors, and central-pivot reversing tangential extractors. The present invention provides the capability for multi-layered baskets to be quickly replaceable to speed the operations of loading and unloading in large size extractors. The present invention also provides a novel semi-tangential extractor design, and may also be applied on semi-radial extractors.
Patent CA-2341215-A1 (CA)
Inventor: TEBO GLEN J
IPC: B25C5/11
Filed: 1999-08-17
Abstract: A device and method for driving a first point (40) of a double-pointed staple (14) into a first board surface (28) of a first board and a second point (42) of the staple into a second board surface (32) of a second board, the board surfaces intersecting at a junction where they define an included angle of less than 180 degrees. The invention involves an alignment structure (10), having first (24) and second (26) abutment surfaces, a staple delivery channel (44), and a driver (56).
Patent CA-2343214-A1 (CA)
Inventor: SCHEEPENS ARJAN
IPC: A61P25/28
Filed: 1999-09-03
Abstract: La présente invention à trait à la neuroprotection et à des médicaments utilisés à cet effet. On induit la neuroprotection en activant des récepteurs neuraux d'hormone de croissance, et surtout en utilisant des médicaments qui renferment une hormone de croissance, des analogues ou des ligands d'hormone de croissance fonctionnellement équivalents. De tels médicaments peuvent également contenir un ou plusieurs agents neuroprotecteurs secondaires.
Patent CA-2345891-A1 (CA)
Title: Wireless method and apparatus for monitoring and controlling food temperature
Inventor: SINGH ABTAR
IPC: F25B41/04
Filed: 2001-05-01
Abstract: A system and method for controlling refrigeration including a temperature sensor operable to measure a temperature from a refrigeration case and a transceiver in communication with the temperature sensor and operable to wirelessly transmit data. A repeater receives the wirelessly transmitted data and further wirelessly transmits the data to a receiver. A controller in communication with the receiver controls the refrigeration system based upon the wirelessly transmitted data from the refrigeration case. The refrigeration case also includes a mode switch for suspending temperature reading and control for a period of time. For example, the mode switch can be used by an operator during cleaning or maintenance of the refrigerator case. Temperature control algorithms are used by the controller, and include: dead-band range (DB), proportional/integral (PI), proportional/integral/differentiation (PID) and fuzzy-logic (FL).
Patent CA-2348713-A1 (CA)
Inventor: WATTS GERALD D
IPC: E21B33/06
Filed: 2001-06-05
Abstract: An improved ram bore profile for use with a variable bore ram packer designed for use in a standard ram-type blowout preventer used in oil and gas drilling operations is disclosed. The improved ram bore profile in the ram body is a substantially U  shaped cutout in the front face of the ram body. The U shaped ram bore profile extends between the upper surface and lower surface of the ram body. The substantially U shape of the improved ram bore profile is further characterized by having an arcuate rear portion with a pair of diverging sides that extend outwardly toward the front face of the ram body to a front throat that intersects perpendicularly the front face of the ram body.  The improved ram bore profile is capable of being used with variable bore packers of different configurations.
Patent CA-2348842-A1 (CA)
Title: Muco-adhesive polymers, use thereof and method for producing the same
Inventor: BERNKOP-SCHNUERCH ANDREAS
IPC: A61K47/34
Filed: 1999-11-04
Abstract: Mucoadhesive polymers assembled of not more than 10 different monomers and comprising at least one non-terminal thiol group, as well as drugs containing these polymers are described.
Patent CA-2350134-A1 (CA)
Title: Device for controlling the rotation of a shaft
Inventor: LONG DENNIS L
IPC: A47B9/00
Filed: 2001-06-08
Abstract: The device (10) prevents a shaft (110) from rotating. When mounted on the shaft extending between the movement mechanisms (106) of a workstation (100), the device prevents the movement mechanisms from raising or lowering the work surface (102). A pair of fixed hubs (20 and 22) are fixably mounted on the shaft. A rotatable hub (24) is rotatably mounted on the shaft spaced between the fixed hubs. First and second wrap springs (28 and 30) extend between each of the fixed hubs and the rotatable hub. A pair of wrap springs are force fit over the fixed hubs and rotatable hub. The device also includes an anti-release mechanism which prevents release of the device when an additional force is applied to the work surface such that the work surface is out-of-balance.
Patent CA-2350718-A1 (CA)
Inventor: LAPRISE EMMANUELLE
IPC: G01R31/28
Filed: 2001-06-15
Abstract: A method and circuitry is provided to adapt VLSI built-in testing and self-testing to opto-electronic VLSI technology. This method facilitates the testing of lasers, laser drivers, receivers and photodiodes by extending the concepts of scan-chain testing and BER testing. The advantages of this method are most obvious for opto-electronic ASICs that have a large number of VCSELs arranged in a regular fashion, such as an array or a line. Quantitative and qualitative testing is performed with variations to the circuitry.
Patent CA-2352252-A1 (CA)
Inventor: TAKAHASHI FUMIO
IPC: G02B6/42
Filed: 2000-10-20
Abstract: Cette invention concerne un procédé qui facilite la fabrication d'un composant optique renfermant sur un même substrat un guide d'onde optique et un repère de positionnement, et qui augmente le rendement de fabrication d'un tel composant. La réalisation en une seule opération de l'âme du guide d'onde optique et du repère de position permet d'améliorer la précision de positionnement entre l'âme et le repère sans exiger pour autant un degré poussé de savoir faire ou un matériel coûteux tel qu'un dispositif d'exposition photographique. Dans cet élément optique composé d'un guide d'onde optique et d'un repère de positionnement sur un substrat, ledit repère présente des coins arrondis ou un profil courbe qui évite des concentrations de contraintes provoquées normalement par l'écart de dilatation thermique entre les diverses couches pendant le traitement thermique ainsi que les risques de fissuration entre ce repère et les couches alentour.
Patent CA-2353545-A1 (CA)
Title: Method for purifying melamine
Inventor: COUFAL GERHARD
IPC: C07D251/62
Filed: 1999-12-16
Abstract: The invention relates to a method for purifying melamine in which impure melamine is heated to a temperature range above 325 ~C but lower than the melting point of melamine which depends on the prevailing ammonia pressure. In addition, the impure melamine is held in said temperature range under an ammonia pressure ranging from 1 to 150 bar for a duration lasting from 1 minute up to 20 hours. The melamine is provided in solid form. Afterwards, t he melamine is relieved from pressure and cooled in any order.
Patent CA-2353858-A1 (CA)
Title: An exposure device
Inventor: EGGERS STEFAN
IPC: G03F7/20
Filed: 1998-12-11
Abstract: An exposure device with a lamp, a condenser arrangement (2), a light modulator, a field lens and a projection objective (5), characterised in that the light modulator consists of a reflecting micro-mirror arrangement (3) in front of which the field lens (4) is arranged in a manner such that the beam path runs through the field lens (4) onto the micro-mirror arrangement (3) and after modulation and reflection at acute angles (16) once again runs through the field lens (4).
Patent CA-2354912-A1 (CA)
Title: Bag-forming machine for making bags with curved bottom walls
Inventor: WETTER BRUNO
IPC: B31B19/16
Filed: 2001-08-08
Abstract: A machine and method for making plastic bags each having a curved or roundish-like bottom wall and an open top end is described. The machine has a bottom wall forming die having opposed concavely curved seal-forming edges converging to a common apex. The die is heated and reciprocated over a folded film sheet which is oriented such that the die will simultaneously slit heat-fuse opposed film sheets of the folded film sheet when stroked on the film sheet. The die forms opposed concavely curved seals extending from a longitudinal folded side edge of the folded film sheet and converging to an apex at a location spaced on a transverse axis from the longitudinal folded side edge.      An evacuation port is located under the folded film sheet in the die-cut area of the folded film sheet and is exposed between slitting and heat-fusing strokes of the die whereby to evacuate the cut-out film portion.
Patent CA-2358507-A1 (CA)
Inventor: TODD WILLIAM J
IPC: D06M11/83
Filed: 1999-02-03
Abstract: Micro-particles of transition metals or their compounds can be generated as an integral part of a textile fiber by first attaching a nucleating agent to the fiber, and then adding a solution of metal ions. The ions are reduced by the nucleating agent in the fiber, and micro-particles are generated in or on the fiber. Because of the strong color signal resulting from a low concentration of metal micro-particles, the method is cost effective even when using gold or titanium ions. Various colors were generated by changing the size and spacing of the micro-particles, the metal or metal complex used, and the characteristics of the textile. The dyed textile displayed colors ranging from pink, red, purple, yellow, orange, peach, brown, gold, silver, grey, green, and black.  These colors resisted bleaching by either chemicals or light.
Patent CA-2360250-A1 (CA)
Inventor: ASHMAN ARTHUR
IPC: A61C8/00
Filed: 2000-02-10
Abstract: A submergible or non-submergible ("one stage") screw-type implant (3) for us e in the immediate post-extraction site of a patient's tooth. In order to increase the ability of regenerated bone to anchor the implant, an upper portion (9) of the implant has a preferably generally conical shape and has a plurality of spherical projections (22) sintered to its outer surface to mak e it suitable for bone integration and retention. The lower portion (10) of th e implant has a cylindrical shape with threads (13) extending over a portion thereof. A channel (18) is located through the threads and is shaped so that  one side forms a cutting edge that makes the lower portion of the implant se lf- tapping into the bone at the base of the tooth extension socket.
Patent CA-2361554-A1 (CA)
Inventor: SUTHERLAND ROBERT L
IPC: B65D71/00
Filed: 2000-11-28
Abstract: A mechanical lock assembly for a wrap-around carton. The mechanical lock assembly has a primary variable lock belt, which both prevents withdrawal of a locking tab (64, 66) after it has been inserted into a locking opening (100) of an associated overlapping panel flap, and enables the lock to adjust according to the size carried items. A secondary locking system (68, 92) prevents the primary locking system (64, 66, 102) from disengaging.
Patent CA-2361818-A1 (CA)
Title: Improved gas flow for plasma arc torch
Inventor: SEVERANCE WAYNE STANLEY JR
IPC: H05H1/34
Filed: 2001-11-13
Abstract: A plasma arc torch and method are provided for directing a flow of gas substantially the length of an electrode before splitting the gas into a primary flow and a secondary flow. The torch includes an electrode having a metallic holder defining a plurality of openings at a forward end for directing all of the gas therethrough and into a chamber defined by the holder and a nozzle. The nozzle defines a central bore and a plurality of secondary openings for splitting the gas in the nozzle chamber into at least the primary flow and the secondary flow.
Patent CA-2363819-A1 (CA)
Title: Hard surface treating agent, stain-proofing agent and method for surface treatment
Inventor: OKAMURA KIYOSHI
IPC: C09G1/02
Filed: 2000-11-09
Abstract: A treating agent characterized in that it comprises an organic solvent and, dispersed therein, anatase-type titanium dioxide and a thermoplastic resin, wherein the content of the thermoplastic resin is 0.05 to 20.0 %; a method for surface treatment comprising applying the treating agent to a surface to be coated. The treating agent is used as a hard surface treating agent and a stain-proofing agent. It has stain- and water spot-proofing properties and is easy to handle in application operation, and thus can be used for a vehicle such as an automobile, an aircraft, office furniture, a building and the like.