baber/WOPTO huggingface dataset:
Patent CA-2185713-C (CA)
Inventor: YEOMAN NEIL
IPC: B01D3/20
Filed: 1995-04-06
Granted: 2006-01-10
Abstract: A  vapor-liquid contact tray (18) and downcomer (24) assembly is provided with louvres (32) which serve to impart a horizontal directional flow to the liquid exiting the downcomer and/or the vapor passing through the tray. The downcomer includes a bottom plate (30) which closes the outlet region of the downcomer and includes a plurality of louvres (32) presenting generally vertical openings in the direction of liquid flow across the underlying tray. The downcomer receiving area (34) in the underlying tray can include similar louvres (36). The louvres redirect the vertical momentum of the liquid and vapor streams to a generally horizontal momentum as the liquid exits the downcomer and as the vapor rises through the tray. In other embodiments, the louvres in either the bottom plate or the downcomer receiving area of the tray are replaced with apertures which do not block the vertical momentum of the stream passing through the apertures. An enhanced vapor-liquid active area on the tray results from the use of the louvres.
Patent CA-2187412-C (CA)
Title: Method for setting up perch channels in mobile communication by cellular system
Inventor: NAKANO ETSUHIRO
IPC: H04W16/10
Filed: 1996-10-08
Granted: 2000-06-27
Abstract: A method for setting up perch channels in a mobile communication by a cellular system, capable of setting up a perch channel and a perch channel list for surrounding base stations at each newly provided base station autonomously. At the newly provided base station, reception levels of signals transmitted by mobile stations to surrounding base stations are measured by scanning uplink control channels corresponding to perch channels, and a perch channel of the newly provided base station and a perch channel list to be signaled by the newly provided base station are autonomously set according to the measured reception levels. Alternatively, reception levels of signals transmitted through perch channels by surrounding base stations are measured while receiving perch channel lists signaled by the surrounding base stations, and a perch channel of the newly provided base station and a perch channel list to be signaled by the newly provided base station are autonomously set according to the measured reception levels and the received perch channel lists of the surrounding base stations.
Patent CA-2190016-C (CA)
Title: Improvements in dental floss
Inventor: HILL IRA D
IPC: A61K8/43
Filed: 1995-05-08
Granted: 2005-10-18
Abstract: The present invention relates to oral hygiene and specifically to an improved method for adding chemotherapeutic agents to dental floss containing several multi-fiber bundles, to methods of treating the oral cavity with the improved dental floss and to the improved dental flosses per se.
Patent CA-2194309-C (CA)
Inventor: PILEGGI JAMES D
IPC: B61D17/04
Filed: 1994-04-08
Granted: 1998-09-15
Abstract: A gondola railway car with a structural frame of metal has panels of lightweight composite tension-bearing sheet material attached to the frame by clamps which grip the margins of the panels.  The panels thus are structural components of the car body, while also acting to contain bulk cargo such as coal.  The panels may be of aramid fiber cloth coated with a wear-resistant polymeric material, and particles of hard material may be embedded in the polymeric material to enhance resistance to mechanical erosion.
Patent CA-2196570-C (CA)
Title: Recombinant herpesvirus of turkeys and uses thereof
Inventor: COCHRAN MARK D
IPC: C12P21/06
Filed: 1995-08-09
Granted: 2010-10-12
Abstract: This invention provides a recombinant herpesvirus of turkeys comprising a foreign DNA sequence encoding a cytokine inserted into an insertion region which comprises a XhoI site within an EcoR1 #9 fragment of a herpesvirus of turkeys viral genome, and the foreign DNA sequence encoding a cytokine which is capable of being expressed in a host cell infected with the herpesvirus of turkeys. This invention provides a recombinant herpesvirus of turkeys-Marek's disease virus chimera comprising a herpesvirus of turkeys unique long viral genome region and a Marek's disease virus unique short region. Lastly, this invention provides homology vectors for producing a recombinant herpesvirus of turkeys, host cells, and vaccines and methods for immunization.
Patent CA-2196999-C (CA)
Title: Traitement du diabete sucre de type ii au moyen d'agonistes d'amyline
Inventor: KOLTERMAN ORVILLE G
IPC: A61K38/22
Filed: 1996-06-07
Granted: 2012-09-04
Abstract: Procédés de traitement du diabète sucré de type II non insulinodépendant, qui consistent à administrer une quantité thérapeutiquement efficace d'un agoniste d'amyline.
Patent CA-2201165-C (CA)
Inventor: WIRTZ KEVIN R
IPC: A01N53/00
Filed: 1997-03-26
Granted: 2001-04-24
Abstract: A method of using humates and/or modified humates as adjuvants in pesticides is disclosed.  Effective amounts of the humate and/or modified humate adjuvants are added to the pesticide or, more preferably, biopesticide formulations at the time of formulation or are mixed with the pesticide or biopesticide at the time of application. Such addition provides superior protection from damage caused by UV light and, thereby, stabilizes the pesticide and enhances activity.
Patent CA-2203203-C (CA)
Inventor: BEVERIDGE KEITH A
IPC: B65D83/00
Filed: 1997-04-21
Granted: 2000-04-04
Abstract: The invention is a plunger useful in extruding or dispensing viscous material which comprises a thin disc of a material which is capable of deforming when subjected to back pressure during use. The edge of the disc has a circular shape and a cylindrical lip attached to the edge of the disc, which lip is disposed perpendicular to the edge of the disc. The disc has a face and a back surface located on opposite sides of the sheet. The disc also has a symmetrical convex portion which protrudes beyond the plane defined by the edge of the disc in the direction of the face and the peak of the convex portion disposed in the center of the disc. The disc further comprises a symmetrical concave portion which protrudes beyond the plane defined by the edge of the disc in the direction of the back surface. The concave portion of the disc surrounds the convex portion of the disc and the convex portion starts at the bottom of the concave portion. The radius of the convex portion, measured from the peak to the bottom of the concave portion, is sufficient to withstand the back pressure exerted during use without inverting. The slope of the wall of the concave portion from the edge to the bottom of the concave portion is disposed such that, when back pressure is exerted on the plunger, the edge deforms radially outward.
Patent CA-2203859-C (CA)
Title: Dual display system
Inventor: MOSCOVITCH JERRY
IPC: G06F1/16
Filed: 1997-04-28
Granted: 2007-07-31
Abstract: A display system includes a base, a pair of electronic displays, and an arm assembly that supports the displays from the base in vertical or horizontal registration. In one implementation, the arm assembly is a single telescopic member that rotates relative to the base and locks in vertical and horizontal orientations, the displays rotate relative to the member between corresponding extreme angular positions in which the operative angular orientation of the displays relative to horizontal is maintained, and the length of the member is adjusted to minimize separation of the displays. In another implementation, the arm assembly has separate arms rotating about vertically spaced axes and linked to minimize the separation of the displays automatically when vertically or horizontally registered. In a simple implementation, the arm assembly is a rigid arm that releasably attaches to the base only in vertical and horizontal orientations, the displays mounted releasably to the arm in pre-defined angular orientations that preserve their operative angular orientation, and one display can be connected to the arm at spaced apart position to adjust separation of the displays.
Patent CA-2221295-C (CA)
Title: Parallel concatenated tail-biting convolutional code and decoder therefor
Inventor: ANDERSON JOHN BAILEY
IPC: H04L1/00
Filed: 1997-04-14
Granted: 2005-03-22
Abstract: A parallel concatenated convolutional coding scheme utilizes tail-biting nonrecursive systematic convolutional codes. The associated decoder iteratively utilizes circular maximum a posteriors decoding to produ ce hard and soft decision outputs. This encoding/decoding system results in improved error-correction performance for short messages.< /SDOAB>
Patent CA-2221554-C (CA)
Title: Water repellent compositions
Inventor: SMITH JANET MARY
IPC: D21H21/16
Filed: 1997-11-18
Granted: 2006-08-29
Abstract: A composition is formed by combining water with an organic polymer such as polybutylene or an alkyd resin and an alkoxysilane of the formula R n Si(OR')4-n where R is an alkyl radical of 1-10 carbon atoms, an alkenyl radical having 2-8 carbon atoms, phenyl, chloropropyl or trifluoropropyl, n is 1 or 2 and R' is an alkyl radical having 1-6 carbon atoms. The composition is free of amine or quaternary ammonium functional silanes. It is conveniently emulsified and used to treat a cellulosic or masonry surface to render it water repellent.
Patent CA-2226875-C (CA)
Inventor: HOLCH HANS-WERNER
IPC: F02M25/06
Filed: 1996-05-11
Granted: 2007-01-09
Abstract: A heating arrangement, particularly for preventing freezing of pipes for delivering crankcase gas from the crankcase of an internal combustion engine to the air intake, in which a valve (12, 18) is provided which includes at least one metal plate, and a PTC thermistor (20) or a resistance heater is disposed on the metal plate.
Patent CA-2230714-C (CA)
Title: Method for catalytically processing gases with a high oxygen content to reduce nitrogen oxide emissions
Inventor: SEGUELONG THIERRY
IPC: B01J23/34
Filed: 1996-09-16
Granted: 2002-04-09
Abstract: A method for catalytically processing gases with a high oxygen content to reduce nitrogen oxide emissions by using a catalytic composition including manganese oxide and at least one oxide selected from cerium oxide and zirconium oxide. Said composition may further include at least one additional element from groups VIII, IB, IVB and VB. Said method is particularly suitable for processing exhaust gases from internal combustion engines, especially diesel or lean-burn engines.
Patent CA-2232242-C (CA)
Inventor: ORMO MATS F
IPC: C07H21/04
Filed: 1997-08-15
Granted: 2008-10-21
Abstract: Engineered fluorescent proteins, nucleic acids encoding them and methods of use.
Patent CA-2240346-C (CA)
Inventor: SMITH JANE E
IPC: C12Q1/686
Filed: 1996-12-13
Granted: 2007-04-24
Abstract: Méthode d'extraction de molécules d'ADN contenant une ou plusieurs mutations résultant d'une polymérase dans une population de duplexes d'ADN amplifiés de manière enzymatique, cette méthode prévoyant les étapes consistant à dénaturer puis reconstituer la population de duplexes d'ADN, soumettre les duplexes d'ADN reconstitués au contact d'un système de rétablissement des mésappariements de telle sorte que chaque souche soit clivée dans les duplexes d'ADN présentant un mésappariement de paire de base, puis à séparer les duplexes d'ADN clivés des duplexes d'ADN non clivés.
Patent CA-2240738-C (CA)
Title: Composition de pesticide contenant du thiamethoxam et des fongicides
Inventor: ELMSHEUSER HANS
IPC: A01N53/06
Filed: 1996-12-07
Granted: 2013-01-22
Abstract: L'invention porte sur une composition, permettant de lutter en même temps contre des insectes ou des représentants de l'ordre des acariens et des micro-organismes, qui comprend au moins un composé répondant à la formule (I). Dans cette formule, A représente un radical hétérocyclique, aromatique ou non aromatique, monocyclique ou bicyclique, non substitué ou à substitution, cette substitution allant de la mono-substitution à la tétra-substitution, l'un des substituants de A ou deux de ses substituants étant sélectionnés dans le groupe constitué par un haloalkyle comportant de 1 à 3 atomes de carbone, un cyclopropyle, un halocyclopropyle, un alcényle comportant de 2 à 3 atomes de carbone, un alcynyle comportant de 2 à 3 atomes de carbone, un haloalcényle comportant de 2 à 3 atomes de carbone, un haloalcynyle comportant de 2 à 3 atomes de carbone, un haloalkoxy comportant de 1 à 3 atomes de carbone, un alkylthio comportant de 1 à 3 atomes de carbone, un haloalkylthio comportant de 1 à 3 atomes de carbone, un allyloxy, un propargyloxy, un allylthio, un propargylthio, un haloallyloxy, un haloallylthio, un cyano et un nitro; des substituants, au nombre de un à quatre, de A étant sélectionnés dans le groupe constitué par un alkyle comportant de 1 à 3 atomes de carbone, un alkoxy comportant de 1 à 3 atomes de carbone et un halogène. Dans cette même formule, R représente un hydrogène, un alkyle comportant de 1 à 6 atomes de carbone, un phénylalkyle comportant de 1 à 4 atomes de carbone, un alcényle comportant de 2 à 6 atomes de carbone ou un alcynyle comportant de 2 à 6 atomes de carbone tandis que X représente N-NO2 ou N-CN. Cette composition, qui est également susceptible de comprendre, s'il y a lieu, un tautomère du composé susmentionné, sous forme libre ou de sel, dans chaque cas, comporte au moins un composé microbicide et au moins un produit d'addition et, le cas échéant, au moins un composé insecticide supplémentaire. L'invention a également trait à un procédé de lutte contre des insectes et des micro-organismes, à une technique de préparation de la composition susmentionnée, à son utilisation et à une substance propice à la multiplication végétative traitée avec cette composition.
Patent CA-2247834-C (CA)
Inventor: SHIRK STEVE
IPC: E21B47/00
Filed: 1998-09-23
Granted: 2007-06-26
Abstract: A subsurface safety device positioning and monitoring system includes a controller and at least one downhole sensor that senses and records conditions of the well near the valve and of the valve itself. Conditions include temperature, pressure, flow rate, degree of closure of valve, structural condition of valve, water cut of produced fluids, etc.
Patent CA-2252917-C (CA)
Inventor: KORF PAUL
IPC: C04B7/44
Filed: 1997-05-17
Granted: 2003-09-02
Abstract: La présente invention concerne un procédé de production de clinker de ciment dans des fours rotatifs, selon lequel on remplace des matières premières et des combustibles primaires par des résidus contenant des minéraux et des fractions combustibles avec des teneurs en humidité pouvant s'élever jusqu'à environ 65 % sans préséchage. Ce procédé permet d'effectuer un recyclage matière et/ou thermique de résidus, de préserver les ressources en argile et en combustible, de ne pas encombrer les décharges et de réduire en même temps les émissions, en particulier de NO¿x?, provenant des fours rotatifs à ciment.
Patent CA-2258738-C (CA)
Inventor: BENEDETTI PAOLO
IPC: F16K1/44
Filed: 1997-05-28
Granted: 2002-01-01
Abstract: The invention relates to a double-seated valve for use especially in aseptic applications, comprising at least two pipe connectors (3, 4, 7) between which two annular valve seats (11, 12) are positioned coaxially in relation to each other and in series. Said double-seated valve also comprises two closing elements (8, 9) which can be axially displaced independently of each other and when closed cooperate with the valve seats (11, 12) in a sealing manner and enclose a hollow chamber (34) between each other, as well as at least one cleaning connector (35, 36) leading into said hollow chamber (34) for introducing a cleaning medium. To avoid the disadvantages of a non-aerodynamic leakage chamber the invention provides for the two end sections (22, 23) of an elastic sealing element (21) embodied as a ring-shaped single piece to be attached in a sealing manner to the two closing elements (8, 9). A sealing surface (25, 26) is embodied adjoining to each end section (22, 23), which sealing surface can be pressed against the corresponding valve seat (11, 12) by means of a closing element (8, 9). The sealing element (21) has a section of rolling diaphragm (24) which connects the two end sections (22, 23) to each other and defines the hollow chamber (34).
Patent CA-2266313-C (CA)
Title: Stable, foamed caulk and sealant compounds and methods of use thereof
Inventor: LUCAS PATRICK J
IPC: C08L31/04
Filed: 1997-08-29
Granted: 2012-03-13
Abstract: Stable foam caulk, sealant and insulation compositions are disclosed. The compositions comprise a waxy, solid foam stabilizer and a liquid lithophilic surfactant having low HLB value of about 3-14. The foam stabilizer provides stable support for bubbles formed from the drying of the latex emulsion of film forming polymer, and the volatile liquid hydrocarbon propellant. In addition to the use in caulking, sealant or insulation methods, the compositions can be used to form artificial terrains or other hardenable structural surfaces as backgrounds or support means for hobbies, crafts and the like.
Patent CA-2267939-C (CA)
Title: Chloride process for making catalyst
Inventor: KELLY MARK
IPC: C08F10/00
Filed: 1999-04-06
Granted: 2007-06-05
Abstract: The present invention provides a novel process for preparing a catalyst, preferably free of electron donor, useful in gas phase polymerization of olefins having a broad polydispersity. The catalyst is prepared by contacting a dehydrated silica support with a first alkylaluminum compound, an organic chloride, a second alkylaluminum compound and an alkylmagnesium compound, and a source of titanium.
Patent CA-2279655-C (CA)
Title: Device and method for indicating exhaustion of a filter
Inventor: AMMANN KLAUS
IPC: B01D46/42
Filed: 1999-08-06
Granted: 2004-02-10
Abstract: A device for indicating exhaustion of a gas filter that is filled with an adsorbing agent (3) is described, said device incorporating a hazardous-gas detector (14) that detects a hazardous gas content at a sampling point (8) within the adsorbing agent (3). The device according to the present invention is characterized by a reference sampling point (12) that is located in the vicinity of a gas-entry point (6) of the gas filter (2), the hazardous gas detector being so designed that it determines the hazardous-gas content at each sampling point (8, 12) in turn, and determines filter exhaustion by comparison of the hazardous gas content at the sampling point (8) with the hazardous-gas content at the reference sampling point (12).
Patent CA-2284579-C (CA)
Inventor: HALLOCK JOHN
IPC: C04B24/26
Filed: 1998-03-10
Granted: 2004-08-24
Abstract: Mortar cement additives provide workability while retaining strength by employing a multi-stage polymer comprising a hydrophobically-modified ionically-soluble polymer stage, the polymer being soluble at a pH of 6 and above; and an air-entraining agent. The additives also employ, as optional ingredients, set retarding agents and superplasticizers. Exemplary methods of the invention involve addition of the multi-stage polymer and an air-entraining agent to the mortar cement, preferably during intergrinding of Portland cement in the mill. Cement compositions comprising the polymer and an air-entraining agent are also disclosed.
Patent CA-2286965-C (CA)
Title: Methods of treating animal waste slurries
Inventor: MOORE PHILIP A JR
IPC: C02F11/143
Filed: 1999-10-20
Granted: 2009-12-22
Abstract: A method of treating liquid animal manure comprising contacting a manure slurry with a treatment composition comprising a treatment effective amount of AlCl3.cndot.nH2O or Al(NO3)3.cndot.mH2O, or the residue of AlCl3.cndot.nH2O or Al(NO3)3.cndot.mH2O, to form a resulting slurry, wherein n is from 0 to 10, and m is from 0 to 12. The treatment effective amount is effective to reduce phosphorus solubility in the manure; reduce phosphorus runoff and/or phosphorus leaching from fields fertilized with manure; inhibit ammonia volatilization from the manure; flocculate solids in the manure; reduce pathogens in the manure; increase the nitrogen content in the manure; and/or reduce acid rain and PM-10s associated with the manure.
Patent CA-2294607-C (CA)
Inventor: TAYLOR CHARLES PRICE JR
IPC: A61K31/197
Filed: 1998-06-24
Granted: 2007-09-25
Abstract: GABA analogs such as gabapentin and pregabalin are useful to prevent and treat inflammatory diseases.
Patent CA-2297170-C (CA)
Title: Improved alkylbenzenesulfonate surfactants
Inventor: SCHEIBEL JEFFREY JOHN
IPC: C11D1/37
Filed: 1998-07-20
Granted: 2003-04-01
Abstract: A surfactant composition comprising:  alkylarylsulfonate surfactant system comprising at least two isomers of the alkylarylsulfonate surfactant of formula (I) wherein L is an acyclic aliphatic hydrocarbyl of from 6 to 18 carbon atoms in total; M is a cation or cation mixture and q is the valence thereof; a and b are numbers selected such that said alkylarylsulfonate surfactant is electroneutral;  R', R" and R"' are independently selected from H and C1 to C3 alkyl; both of R' and R" are nonterminal attached to L and at least one of R' and R" is Ct to C3 alky l; and A is aryl; wherein said alkylarylsulfonate surfactant system comprises two or more isomers with respect to positions of attachment  of R', R" and A to L; in at least about 40 ~o of said composition, A is attached to L in the position which is selected from positions alpha and beta- to either of the two terminal carbon atoms of L; and wherein further said alkylarylsulfonate surfactant system has at least one of the following properties: said alkylarylsulfonate surfactant system has a ratio of nonquaternary to quaternary carbon atoms in  L of at least about 5: I by weight, when said quaternary carbon atoms are present; or percentage biodegradation, as measured by the modified  SCAS test, that exceeds tetrapropylene benzene sulfonate.
Patent CA-2307969-C (CA)
Title: Modular cushion construction with foamed base
Inventor: GRAEBE ROBERT H
IPC: A47G9/10
Filed: 1992-12-07
Granted: 2002-04-09
Abstract: A modular cushion comprising a shaped base which has a flat rear portion and a raised front portion with angularly directed valleys and a raised pommel to direct weight to the thighs and in combination with a resilient pad positioned on the flat portion of the base to relieve pressure on the ischial and trochanters and in combination with a cover having a non-skid undersurface and a portion of the top being two-way stretchable. The resilient pad may be of inflatable cells having a pyramidal shape with a flattened top. A U-shaped restraining member may be positioned at the front of the base with upwardly projecting sides to retain the legs of the user.
Patent CA-2308166-C (CA)
Title: Absolute property measurement with air calibration
Inventor: WASHABAUGH ANDREW
IPC: G01N27/02
Filed: 1998-10-28
Granted: 2007-09-04
Abstract: An instrument and method for providing accurate and reproducible measurement of absolute properties of a material under test without using conductiv-ity or crack calibration standards. The instrument has a sensor designed to minimize unmodeled parasitic ef-fects.   To accomplish this, the sensor has one or more of the following features: dummy secondary elements located at the ends of a primary winding meandering, setting back of the sensing element from a connecting portion of the primary winding, or various grouping of secondary elements. The sensing elements of the sensor can be connected individually or in differential mode to gather absolute or differential sensitivity measurements.  In addition, the instrumentation is configured such that a significant portion of the instrumentation electronics is placed as close to the sensor head to provide inde-pendently controllable amplification of the measurement signals therein reducing noise and other non-modeled effects.