baber/WOPTO huggingface dataset:
Patent CA-2146573-C (CA)
Title: Oil middle distillate composition containing a paraffin sedimentation rate limiting agent
Inventor: VASSILAKIS DESPINA
IPC: C10L1/18
Filed: 1993-12-08
Granted: 2006-06-06
Abstract: A middle petroleum distillate composition containing a major proportion of middle petroleum distillate and a minor proportion of an additive in a sufficient amount to limit the settling speed of paraffins contained in said middle distillate. Said additive consists of a product resulting from a reaction between at least one aliphatic dicarboxylic compound and at least one primary amine functional compound of general formula (I), wherein R<1> is a monovalent saturated aliphatic radical, Z is selected from -NR'- groupings in which R' is a hydrogen atom or a monovalent saturated aliphatic radical, n is an integer between 2 and 4, and m is an integer between 1 and 4; said primary amine functional compound being used in a ratio of 0.3-0.8 mols per mol of said dicarboxylic compound.
Patent CA-2148031-C (CA)
Title: Multiplexed trailer light system
Inventor: VINCENT RAYMOND A
IPC: B60D1/62
Filed: 1995-04-27
Granted: 2006-01-24
Abstract: An encoder and decoder (multiplexer and demultiplexer) are used to control the rear operating lights (e.g., turn, brake, or running lights) of a trailer towed on the roads behind a tractor vehicle. Voltages powering the tractor vehicle's rear lamps are the inputs to a combinational logic unit with gates (AND, OR, etc.) for interfacing between different lighting systems on the tractor and trailer. The logic unit's outputs are fed to an encoder which converts the parallel outputs to aerial data. The data are sent over a single wire to the decoder, mounted on the trailer. The decoder regenerates the parallel signals to control switches (power transistors) driving the trailer lamps with power from the vehicle battery.
Patent CA-2156880-C (CA)
Title: Apparatus and method for automatically achieving and maintaining congruent control in an industrial boiler
Inventor: GUNTHER JOHN C
IPC: G01N33/18
Filed: 1995-08-24
Granted: 2003-12-09
Abstract: A control system for automatically achieving and maintaining a desired sodium/phosphate ratio and phosphate concentration of the boiler water in an industrial boiler for minimizing corrosion. The system uses an adaptive controller that models the boiler which enables the system to predict boiler pH and phosphate concentrations at any future time given the feed rates, feed concentrations of high and low sodium/phosphate stocks, blowdown rate, mass of the boiler water, initial boiler phosphate concentration and initial pH. Once these future concentrations are determined, the controller then determines which feed rates will return the current boiler water state to, and then maintain the boiler water at, the desired sodium/phosphate congruency ratio in the least amount of time. Where the controller determines that it is not possible to move the current boiler water state to the desired congruency setpoint, the controller determines a feed rate program that will move the current boiler water state to the attainable steady state point closest to the desired setpoint. An alternative embodiment fixes the phosphate concentration by ratioing the phosphate feed with the blowdown rate while continuously monitoring blowdown pH. This arrangement allows for the control of sodium by switching between the high and low ratio sodium/phosphate stocks based on the measured pH with respect to the pH setpoint.
Patent CA-2161929-C (CA)
Title: Catalyst and process for preparing long chain alkylaromatic compounds
Inventor: COLOMBO GIOVANNI
IPC: C07C2/64
Filed: 1995-11-01
Granted: 2004-04-20
Abstract: A catalyst is disclosed which comprises a clay belonging to the family of smectites, containing multi-metal pillars, together with a process which uses such a catalyst for the alkylation of aromatic hydrocarbons by means of long chain linear olefins.      The resulting alkyl-aromatic compounds are useful for preparing biodegradable synthetic detergents.
Patent CA-2166727-C (CA)
Inventor: SEAWARD DAVID ROBERT
IPC: B65B29/02
Filed: 1994-06-24
Granted: 2006-06-13
Abstract: Packets are produced by forming a continuous web (W) of packaging material into a tubular form around a tube (4) through which the packet filling material is delivered, the individual packets being sealed and severed from the web as each dose of filling material is delivered. A valve (24) to control the dosing is provided at the exit end of the delivery tube. The sealing and severing of the packets is performed by mutually transverse pairs of rotors (36, 38) the arms (92) of which interdigitate to make successive seals in mutually transverse directions, so forming tetrahedral packets.
Patent CA-2173053-C (CA)
Inventor: GIRARD PATRICK
IPC: A41D31/02
Filed: 1996-03-29
Granted: 2002-08-20
Abstract: A fabric laminate (10) comprises first and second stretch fabrics (11 and 12) having an intermediate adhesive securement layer (13) between them. The adhesive securement layer (13) is in the form of a regularly repeated pattern which comprises an array of aligned adhesive elements (14) arranged in successive generally horizontally and vertically extending rows. The array of adhesive elements (14) is capable of offering resistance to elongation as the laminate (10) is subjected to distortion, with the pattern having a differential elongation characterized as offering different magnitudes of resistance to elongation when the fabric laminate (10) is subjected to distortion in selected different directions. The adhesive securement layer (13) is predeterminedly oriented in accordance with its differential elongation and the stretch characteristics of fabrics (11, 12) such that the resistance to elongation offered by the laminate (10) is determined by the pattern and orientation of the individual adhesive elements (14) in conjunction with the stretch characteristics of the fabrics (11, 12). The laminate (10) may be employed to reinforce items of clothing, particularly underwear and the like.
Patent CA-2173134-C (CA)
Inventor: CLARK JAMES E II
IPC: F01P11/06
Filed: 1993-10-01
Granted: 1999-12-14
Abstract: A waste fluid recovery and new fluid delivery system (8). The system has a portable section (10) and a stationary section (60). The portable section (10) has waste fluid containers (14) dedicated to receive a particular waste fluid (64) and new fluid containers (16) to deliver particular new fluids (68). The stationary section of the system (60) has waste fluid containers (62) dedicated to receive the particular waste fluids (64) from the portable waste fluid containers (14) and new fluid containers (66) are dedicated to deliver the particular new fluids (68) to the particular portable new fluid containers (16). The system (8) allows the portable section of the system (10) to be readied for reuse by recharging new fluid containers (16) with new fluid (68) and removing the waste fluid (64) from the waste fluid containers (14), which all takes place automatically and in a generally unmonitored manner.
Patent CA-2173447-C (CA)
Inventor: NITA HENRY
IPC: A61B17/22
Filed: 1994-09-27
Granted: 2001-11-27
Abstract: Un connecteur (14) permet de fixer un transducteur à ultrasons (12) à un cathéter à ultrasons (10). Il comporte un support situé sur le transducteur à ultrasons et supportant au moins une partie d'un coupleur de cathéter disposé à l'extrémité proximale du cathéter à ultrasons. Ce support comprend de préférence un collier (50), disposé de façon à pouvoir coulisser sur le transducteur à ultrasons pour passer d'une position non porteuse, où ledit collier est adjacent au coupleur de cathéter, à une position porteuse où il est disposé autour du coupleur de cathéter et en prise avec lui. Le fait de supporter une partie au moins du coupleur de cathéter limite les risques de rupture de l'élément de transmission des ultrasons en limitant les contraintes mécaniques appliquées à son extrémité proximale.
Patent CA-2177531-C (CA)
Inventor: DAVENPORT RONALD DEAN
IPC: F16K49/00
Filed: 1996-05-28
Granted: 2000-03-28
Abstract: An apparatus and method for enclosing and heating a fluid flow control device. The apparatus includes a cover assembly and a heater element. The heater preferably has an elongated body for placement on or adjacent to the ground on which the fluid flow device extends. The method is directed to the use of the apparatus and positioning the heater in order to establish a substantially uniform thermal gradient within the cover in the range of less than two degrees per vertical inch of elevation.
Patent CA-2179775-C (CA)
Title: Cross-linked polymers with a porous structure
Inventor: CHMELIR MIROSLAV
IPC: C05G3/00
Filed: 1994-12-19
Granted: 2000-03-28
Abstract: The invention relates to cross-linked synthetic polymers based on acrylic acid and its derivatives with a high absorbency and improved absorbency rate for water, aqueous solutions and bodily fluids, a process for their production by radical polymerisation in conditions leading to polymers having a porous structure and a particle density depending on the degree of swelling so that the polymer particles can float in water or aqueous fluids and the use of these polymers for the absorption and/or retention of water and the transfer of water and/or an active agent solution to a surrounding medium. The porous structure of the polymer is formed by nitrogen dispersed in it. At least one azo compound with a half exchange time of at least 10 hours at a temperature of 30 to 120 °C is added to the aqueous monomer solution as a polymerisation initiator and foaming agent.
Patent CA-2182159-C (CA)
Title: Speech encoder capable of substantially increasing a codebook size without increasing the number of transmitted bits
Inventor: TAUMI SHIN-ICHI
IPC: G10L19/22
Filed: 1996-07-26
Granted: 2002-06-18
Abstract: In a speech encoder, a gain codebook switching circuit is supplied with short-term prediction gains from a short-term prediction gain calculator circuit and with mode information through an input terminal and compares the short-term prediction gains with a predetermined threshold value when the mode information indicates a predetermined mode.  As a result of comparison, the gain codebook switching circuit produces gain codebook switching information which is delivered to a gain quantizer circuit.  The gain codebook quantizer circuit is supplied with adaptive code vectors, excitation code vectors, impulse response information, and the gain codebook switching information, and gain code vectors from a particular gain codebook connected to one of a plurality of input terminals that is selected by the gain codebook switching information.  For the excitation code vectors being selected, the gain quantizer circuit selects combinations of the excitation code vectors and the gain code vectors in the gain codebook selected by the gain codebook switching information.
Patent CA-2189382-C (CA)
Title: Housing for a cylinder-operated combustion-powered machine
Inventor: DZIGGEL REINER
IPC: F02F7/00
Filed: 1996-11-01
Granted: 2005-04-05
Abstract: A housing for a piston-operated, combustion-powered machine includes an internal portion defining one or more cylinders. The internal portion has a deck upon which are formed threaded columns extending toward an upper connection plane. Partitions extend downward from the deck portion to a lower connection plane, and support bearing blocks for a crankshaft. An external portion is cast around the internal portion so as to provide spaces for cooling water and oil. The external portion is made of a different material from that of the internal portion. The internal portion integrally supports the cylinder liners, and hence constitutes a unit therewith.
Patent CA-2193152-C (CA)
Inventor: WITTMAN BRIAN ALBERT
IPC: H04R3/00
Filed: 1996-12-17
Granted: 2000-04-25
Abstract: A telephone handset interface is disclosed for reducing or eliminating feedback induced singing in a telephone handset/hybrid loop. The interface provides for user selectable volume control settings, each setting representing an amount of gain or loss to be applied to the transmit and receive signals within the telephone set. The gain settings are selected to limit overall loop gain so as to reduce or eliminate any tendency of the handset to sing at high receive gain levels. Loss inserted into the transmit circuit is removed when user speech is detected in the transmit circuit.
Patent CA-2201757-C (CA)
Inventor: WATSON ANDREW
IPC: H04W36/04
Filed: 1995-09-28
Granted: 2005-01-11
Abstract: Procédé permettant à une station mobile située dans un environnement multicellulaire d'effectuer un transfert, conformément aux figures 2 et 3, ce procédé consistant à décider d'un transfert à partir d'une microcellule parmi une pluralité de microcellules vers la macrocellule, à effectuer un tel transfert, puis à envoyer une liste erronée des cellules voisines à la station mobile.
Patent CA-2201841-C (CA)
Inventor: CATZ INGRID
IPC: A61K38/08
Filed: 1997-04-04
Granted: 2010-01-26
Abstract: Human myelin basic protein (h-MBP) has a molecular weight of 18.5 KD and contains 170 amino acid residues. Synthetic peptides ranging in length from about 8 to 25 residues and covering the entire length of the protein have been produced. Antibodies to h-MBP (anti-MBP) were found to be neutralized by the synthetic peptides, in vitro, which span the h-MBP from about amino acid residue 61 to about amino acid residue 106. The peptides, which cover both the amino (about residues 1 to 63) and carboxy (about residues 117 to 162) terminals of h-MBP did not neutralize purified anti-MBP. Intrathecal administration of peptide MBP75-95, either as a single dose, or as repeated injections for periods up to 10 weeks, produced complete binding-neutralization of free (F) anti-MBP with no change in bound (B) levels. A control peptide MBP35-58 had no effect on F or B anti-MBP levels. Intravenous administration of MBP75-95 resulted in significant decline of F and B CSF anti-MBP levels over a period of one month. Administration of MBP synthetic peptides to MS patients either intrathecally or intravenously did not have any adverse neurological effects and systemic complications did not occur. The MBP epitope for MS anti-MBP has been localized to an area between Pro85 and Pro96. The longer peptide Asp82 to Thr98 is more soluble and thus can be administered in a smaller dose.
Patent CA-2205242-C (CA)
Inventor: REYHER RUSSELL EDWARD
IPC: F24B1/18
Filed: 1997-05-13
Granted: 2001-10-09
Abstract: A direct vent gas fireplace has a combustion air duct extending down the back wall, between the housing back wall and the fireplace back wall. It is located laterally between two cooling air ducts that lead from the cool air zones at the bottom outer corners of the housing to a cooling air plenum inside the top of the housing. Inside the cooling air plenum and the cooling air ducts are a room air plenum and room air circulating space for the circulation of room air to be heated. This provides a compact construction with adequate wall cooling without the need for additional thermal insulation. The top of the unit is oriented at an angle less than 45°, preferably 23.2° to horizontal so that the exhaust and vent pipes can be arranged in a top vent or a back vent arrangement without the pipes projecting beyond the back of the fireplace unit In the top vent arrangement.
Patent CA-2208488-C (CA)
Title: High capacity filter media
Inventor: CHOI KYUNG-JU
IPC: B32B5/26
Filed: 1997-06-13
Granted: 2004-01-27
Abstract: A fluid filter arrangement including layered filter media capable of successively filtering varying sized particulate matter from a treated fluid stream with each layer of the layered filter media  having  a  substantially  equal  terminal  pressure  drop thereacross.
Patent CA-2216012-C (CA)
Title: Agent combustible solide de destruction de la suie et des goudrons, son procede de fabrication et son utilisation
Inventor: FARJON THIERRY
IPC: C10L10/06
Filed: 1997-10-06
Granted: 2000-07-18
Abstract: Agent combustible solide de destruction de la suie et notamment des dépôts goudronneux dans les conduits de fumée, ledit agent comprenant en mélange une matière combustible cellulosique solide particulaire, un agent chimique et/ou catalytique destructeur de suie et un liant. La destruction de la suie et des dépôts goudronneux est obtenue par la combustion de l'agent combustible solide dans le foyer. Utilisation de l'agent combustible sous forme de bûches.
Patent CA-2222314-C (CA)
Inventor: BAUDOUX JEAN-PIERRE
IPC: B63B21/66
Filed: 1996-06-14
Granted: 2007-09-04
Abstract: Towed acoustic transmitters forming an underwater vehicle for towing a linear acoustic receiving antenna (105) are disclosed. The vertical streamlined acoustic antenna (303) of the transmitter is placed right at the back of the underwater vehicle, and the weight of the antenna is counterbalanced using streamlined ballast (313) positioned right at the front of the vehicle. A beam (310) with a small cross-section joins the two portions together and the centre of gravity of the whole assembly is located at the front of and below the beam. The vehicle is towed using a cable (101) attached thereto by means of an intermediate member (314) secured to a ball (315) above the centre of gravity. The assembly may thus be more easily submerged and recovered while achieving a greater immersion depth.
Patent CA-2224984-C (CA)
Inventor: SUDHALKAR ATUL M
IPC: B05B5/053
Filed: 1996-09-06
Granted: 1999-11-02
Abstract: A method and apparatus for the formation of a three-dimensional article by forming uniform droplets of like charge. The supply of droplets is focused into a narrow stream by passing through an alignment means. The droplets are deposited in a predetermined pattern at a predetermined rate onto a target to form the article without using a mold. A supply of support material is provided adjacent the desired material for support.
Patent CA-2227898-C (CA)
Inventor: COOK BRUCE R
IPC: C07C6/08
Filed: 1996-09-05
Granted: 2006-11-21
Abstract: Procédé permettant d'ouvrir sélectivement des cycles naphthéniques de composés contenant ces derniers qui sont présents dans un écoulement de départ dans lequel au moins 50 % en poids desdits composés cycliques sont caractérisés par le fait qu'ils contiennent au moins un cycle C6 comprenant au moins un substituant contenant 3 atomes de carbone ou plus. Les cycles naphthéniques sont ouverts sans désalkylation significative d'un quelconque substituant pendant présent sur le cycle. On met en contact l'écoulement de départ qui contient lesdits composés avec un catalyseur supporté contenant un métal sélectionné parmi Ir, Ru ou un mélange des deux, puis on fait réagir ce catalyseur avec une charge constituée de 20 % en poids de n-butylcyclohexane dans un diluant heptane pour obtenir: a) une production de paraffines C10 d'au moins 10 % et b) une sélectivité égale à au moins 0,20, cette même sélectivité étant définie de la manière suivante, pourcentage de production de paraffine C10/pourcentage d'élimination des cycles C10.
Patent CA-2229370-C (CA)
Title: Catheter
Inventor: TOLKOFF MARC JOSHUA
IPC: A61M39/02
Filed: 1996-08-05
Granted: 2003-06-03
Abstract: The present invention relates to catheters for use with subcutaneous access ports for continuous or intermittent infusion therapy. These catheters utilize a pretension, helical coil (8) which is incorporated into a flexible cannulated portion (7). This feature allows the flexible cannula to be bent without kinking under normal use. This flexibility provides a great deal of comfort to the patient. These catheters also incorporate a puncture needle (2) which is positioned axially down the length of the catheter such that the sharp point at the distal end of the needle entends the distal end of the catheter. This combination of a pretension, flexible catheter and a puncture needle achieves a stiffness sufficient to penetrate the tough, self-sealing septum used in subcutaneous access ports, yet, once the puncture needle is removed the patient is left with a comfortable alternative to commonly used hypodermic needles. The present invention also relates to improved transcutaneous infusion systems which utilize these catheters.
Patent CA-2238692-C (CA)
Inventor: CANCELLIERI CALOGERO
IPC: C07J71/00
Filed: 1996-12-04
Granted: 2004-07-20
Abstract: On décrit un procédé de préparation du composé (11 beta ,16 beta )-21-(3-carboxy-3-oxopropoxy)-11-hydroxy-2'-méthyl-5'H-pregna-1,4-diéno[17,16-d]oxazole-3,20-dione, lequel consiste à faire réagir le composé (11 beta ,16 beta )-11,21-dihydroxy-2'-méthyl-5'H-pregna-1,4-diéno[17,16-d]oxazole-3,20-dione avec de l'anhydride succinique, dans un alkyle C1-4 ester d'un acide carboxylique C1-C4 en tant que solvant et en présence d'un catalyseur basique.
Patent CA-2243736-C (CA)
Title: Mineral fiber insulation batt impregnated with extruded synthetic fibers, and apparatus for making same
Inventor: ROMES GARY E
IPC: B32B17/04
Filed: 1998-07-21
Granted: 2002-04-16
Abstract: A method of directing extruded synthetic fibers toward at least one surface of a mineral fiber insulation batt, and corresponding apparatus and resulting product.  In certain embodiments, a row of extrusion heads is provided for directing extruded synthetic fibers (e.g. fibers including ethyl vinyl acetate or EVA) toward a surface(s) of the batt(s) to be impregnated with same.  Optionally, extrusion heads may be provided all around the batts so as to impregnate substantially all surfaces thereof with the extruded synthetic fibers.  As the fibers exit the heads, they are hit with pressurized heated air streams which cause them to go into an insipid spin which increases directional tensile strength of the resulting batt in all directions.  In certain embodiments, every other batt of a plurality of batts passes over an elongated member which extends over top of the conveyor in order to more efficiently impregnate edge surfaces of the batts.
Patent CA-2246131-C (CA)
Title: Randomized sprocket for roller chain
Inventor: LEDVINA TIMOTHY J
IPC: F16H57/00
Filed: 1998-08-31
Granted: 2007-06-05
Abstract: The present invention is directed to varying the radial seating position of the roller while maintaining a constant chordal dimension between seated rollers. The roots between teeth of a sprocket for a roller chain have radii that vary between a nominal radius and a maximum radius and a minimum radius. This variation or randomization is intended to provide a noise modulation effect while avoiding the negative effects of high impact from conventional randomized sprockets.
Patent CA-2248405-C (CA)
Title: Using nitric oxide to reduce reactor fouling during polypropylene graft copolymerization
Inventor: SONG CHENG Q
IPC: C08F2/44
Filed: 1998-09-22
Granted: 2003-03-11
Abstract: A graft copolymer comprising a backbone of a propylene polymer material having a vinyl monomer graft polymerized thereto is produced by (1) treating a propylene polymer material with a free radical polymerization initiator, (2) treating the propylene polymer material with at least one grafting monomer capable of being polymerized by free radicals, and (3) removing any unreacted grafting monomer from the graft copolymerized propylene polymer material, decomposing any unreacted initiator, and deactivating any residual free radicals in the material, wherein (1) and (2) are carried out in the presence of a continuous feed of nitric oxide. The nitric oxide reduces the buildup of polymer deposits on reactor walls and gas circulation loops while having almost no effect on the graft copolymerization reaction.