baber/WOPTO huggingface dataset:
Patent CA-2351795-C (CA)
Title: Ventilation system and method
Inventor: MCCARREN GREGORY M
IPC: F23L15/04
Filed: 2001-06-27
Granted: 2005-03-22
Abstract: A balanced building ventilation system that employs a fireplace as an element of the ventilation system.      The fireplace includes a firebox, and an exhaust gas flue is connected to the firebox for exhausting gas from the firebox to the outdoor ambient. A ventilation channel conveys outdoor ambient air into the building interior. A motor-driven draft inducer is connected to the exhaust gas flue for forcing exhaust gas flow out to the outdoor ambient. A motor-driven blower is provided for forcing ventilation airflow through the channel to replace building interior air lost to exhaust gas flow.
Patent CA-2354454-C (CA)
Title: Pulse width modulation control circuit for a high frequency series resonant ac/dc converter
Inventor: JAIN PRAVEEN KUMAR
IPC: H02M7/217
Filed: 2001-07-30
Granted: 2004-12-14
Abstract: A pulse width modulation control circuit for a high frequency series resonant AC/DC converter suitable for use in computing and network equipment such as personal computers, servers and high-speed routers includes an auxiliary transformer, a zero crossing detector, a delay circuit, a synchronization circuit and an output circuit.      The pulse width modulation control circuit provides phase and frequency synchronized gating signals enabling high conversion efficiency, with little or no cross conduction losses and increased effective pulse width.
Patent CA-2354941-C (CA)
Inventor: WHITE BRIAN A
IPC: B24D3/06
Filed: 2001-08-08
Granted: 2006-05-16
Abstract: PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. The PCD material comprises 15 percent by volume or less diamond grains sized 20 micrometers or less. The diamond grains are pressurized under elevated temperature conditions to form the desired PCD material. PCD materials of this invention can constitute the exclusive material phase of a PCD construction, or can form one or more material phase in a multi-phase material microstructure, wherein the multiple material phase can be arranged in an ordered/oriented or random fashion. PCD materials of this invention display improved properties of impact and fatigue resistance, and functional toughness, when used in complex wear environments, when compared to conventional PCs materials comprising intentionally added fine-sized diamond grains.
Patent CA-2358616-C (CA)
Title: Densitometer diagnostic system for an image-forming machine
Inventor: HAMEISTER WILLIAM A
IPC: G03G15/00
Filed: 2001-10-11
Granted: 2004-07-27
Abstract: The invention provides a diagnostic system for a densitometer in an image-forming machine. An image-forming machine with a densitometer diagnostic system may have a photoconductor, one or more chargers, an exposure machine, a toning station, and a densitometer. A densitometer diagnostic system for an image-forming machine may have an emitter, a collector, amplifier circuitry, and diagnostic circuitry. The diagnostic circuitry reduces the drive current to the emitter in the densitometer by a known or calculable value. The output voltage from the amplifier circuitry in the densitometer is reduced in proportion to the reduction in the drive current.  To perform diagnostic testing of the densitometer, a first output voltage is obtained from the densitometer without the diagnostic circuitry connected. A second output voltage is obtained from the densitometer with the diagnostic circuitry connected.  When the difference in first and second output voltages matches an output voltage specification, the densitometer is functional. The diagnostic circuitry may be removed from the densitometer when not in use. Alternatively, the densitometer may have a switch to disconnect the diagnostic circuitry when not in use.
Patent CA-2361002-C (CA)
Inventor: MALEKI LUTE
IPC: H04B10/18
Filed: 2000-01-28
Granted: 2005-07-26
Abstract: La présente invention concerne un oscillateur (101) de production de signal de porteuse comportant un module optoélectronique de suppression de bruit (102), relié entre un coupleur (104) de sortie d'oscillateur et l'entrée (164) de commande de l'oscillateur (101). Le module optoélectronique de suppression de bruit (102) comprend un dispositif optoélectronique (110) émettant un premier signal électrique (121) indicatif d'une version retardée du signal de porteuse. Un interféromètre électrique (120) reçoit le premier signal électrique (121) et un second signal électrique indicatif du signal de porteuse pour émettre deux signaux combinés dans un mélangeur (144), et émettre ainsi un signal de commande (152) pour l'oscillateur.
Patent CA-2365447-C (CA)
Title: Intravesicular balloon
Inventor: HIRSZOWICZ ERAN
IPC: A61M25/00
Filed: 2000-03-15
Granted: 2008-06-10
Abstract: A system for treating a urinary bladder of an individual. The system comprises a balloon for insertion into the urinary bladder. The balloon can be filled with a fluid such that after filling the balloon has a specific gravity less than or equal to that of urine. The system also comprises an applicator for inserting the balloon into the urinary bladder or for removing the balloon from the urinary bladder. The balloon is useful in treating the urinary bladder, in monitoring the urinary bladder and in the treatment of urinary incontinence.
Patent CA-2370409-C (CA)
Inventor: ZABEL PAMELA LOUISE
IPC: A61K51/12
Filed: 2000-03-24
Granted: 2009-02-03
Abstract: A new formulation of Tc-99m colloid is described. The new colloid contains a high ratio of perrhenate to thiosulphate, cysteine, and a prepared higher final pH than found previously.  In preparing the colloid preferred rhenium sulfide is not used as an ingredient. The pH of the final formulation and can be between about 5.5 an about 8.0, and the ratio of rhenium to sulfur is from about 0.05 to about 1.2. In addition, the new colloid has excellent radiochemical purity, and a much smaller particle size distribution than has generally been previously available for sulfur colloid preparations.
Patent CA-2372175-C (CA)
Title: Immobilized enzymes as biosensors for chemical toxins
Inventor: GORDON RICHARD K
IPC: C12Q1/46
Filed: 2000-04-26
Granted: 2010-07-13
Abstract: Methods, compositions and materials useful in the detection of organophosphorous and organosulfur are disclosed. In particular, biosensors wherein a porous e.g. foam or a non-porous support having an enzyme covalently immobilized upon or within are disclosed. The biosensors exhibit enzymatic stability at extreme temperatures and/or denaturing conditions, and similar kinetic characteristics of the soluble form of the enzymes utilized. The enzyme does not leach from the porous or non-porous support and the material retains enzymatic activity after prolonged storage. Differential biosensors are also disclosed.
Patent CA-2374954-C (CA)
Title: Process for making low density foams, polyol composition and reaction system useful therefor
Inventor: YU JIANMING
IPC: C08G65/08
Filed: 2000-05-05
Granted: 2008-08-26
Abstract: The invention relates to a polyol composition comprising by weight 60-97 % of b 1) a polyoxyethylene-polyoxypropy-lene polyol, having a functionality of 2-6 with 10-25 % tipped EO; 3-40 % of b2) a polyoxyethylene-polyoxypropylene polyol, having a functionality of 2-6, with 20-50 % total EO and 10-20 % tipped EO; and 0-25 % of b3) a polyol, having a functionality of 2-6, with at least 50 % random EO. The invention also relates to a process for preparing a flexible polyurethane foam by reacting a) a polyisocyanate composition; b) a polyol composition of the invention; c) water; and d) additives and auxiliaries known per se. The invention finally relates to a reaction system comprising A) a polyisocyanate and B) an isocyanate-reactive component comprising the polyol of the invention.
Patent CA-2375975-C (CA)
Title: Pyrithione biocides enhanced by silver, copper, or zinc ions
Inventor: NELSON JOHN D JR
IPC: A01N59/20
Filed: 2000-06-23
Granted: 2011-11-22
Abstract: The present invention is directed to an antimicrobial composition, comprising pyrithione or a pyrithione complex; and a zinc or copper or silver source selected from the group consisting of zinc or copper or silver salts, oxides, hydroxides, sulfates, chlorides, metals, and combinations thereof; wherein the weight ratio of the zinc or copper or silver source to the pyrithione or the pyrithione complex is in the range from about 1:300 to about 50:1, and wherein the antimicrobial composition has an enhanced biocidal effect against a variety of free-living microorganisms or biofilms. Also disclosed is a method of inhibiting the growth of free-living microorganisms or biofilm utilizing the above antimicrobial composition, as well as use of such antimicrobial compositions in various products including fuels, fluids, lubricants, coatings, adhesives, sealants, elastomers, soaps, cosmetics, plastic or woven or non-woven fibers, pharmaceuticals, and as preservatives for the above products.
Patent CA-2379605-C (CA)
Title: Topical suspension formulations containing ciprofloxacin and dexamethasone
Inventor: SINGH ONKAR N
IPC: A61K31/57
Filed: 2000-08-10
Granted: 2007-06-26
Abstract: Suspension formulations containing dexamethasone and ciprofloxacin are disclosed. The formulations contain a nonionic polymer, a nonionic surfactant and an ionic tonicity agent, but are physically stable and easily re-suspended. The formu-lations are intended for topical application to the eye, ear or nose.
Patent CA-2380913-C (CA)
Inventor: MOELLER PATRICK W
IPC: A23L27/27
Filed: 2000-10-13
Granted: 2006-12-19
Abstract: Cette invention concerne une solution d'agent de brunissement pour fumée liquide caractérisée en ce qu'elle possède un bon pouvoir brunisseur pour une odeur minime ou nulle, ainsi qu'un procédé de fabrication de ladite solution. L'agent de brunissement pour fumée liquide peut être fabriqué à partir de pulpe de bois délignifiée disponible dans le commerce.
Patent CA-2382990-C (CA)
Inventor: CUTLER RAYMOND ASHTON
IPC: C25B1/00
Filed: 2002-04-22
Granted: 2006-10-03
Abstract: The present invention relates to compositions of matter represented by the general formula Ln x Ln'x'A y Ti z Ce1-x-x'-y-z O2-.delta. wherein Ln is selected from the group consisting of Sm, Gd and Y; Ln' is selected from the group consisting of La, Pr, Nd, Pm, Eu, Tb, Dy, Ho, Er, Tm, Yb, Lu; A is selected from the group consisting of Mg, Ca, Sr and Ba, 0.05 <= x <= 0.25, 0 <= x' <= 0.25, 0 <= y <= 0.03, 0.001 <= z <= 0.03, 0.05 <= x + x' <= 0.25, 0.001 <= y + z <= 0.03, wherein .delta. is a number which renders the composition of matter charge neutral. The composition can be formed into sintered bodies suitable for use as solid electrolytes in devices including solid-state oxygen generators. Such sintered bodies have greater than 95% theoretical density at temperatures at or below 1600°C, and can be produced by a solid-state method.
Patent CA-2391111-C (CA)
Inventor: GIOVANNI PATRICK DI
IPC: B05B9/04
Filed: 1997-12-23
Granted: 2004-06-22
Abstract: A pharmaceutical formulation in the farm of an aerosol suspension of a medicament selected from salbutamol, salmeterol, fluticasone propionate, beclomethasone dipropionate, terbutaline and any salts, esters and solvates thereof and any mixtures thereof, in a propellant; the formulation is administered by an aerosol container comprising a valve, said valve comprising a valve body having at least one orifice to allow a quantity of the suspension to pass from the container into the valve, the valve further comprises a ring disposed around the valve body, the ring providing a trough around the valve body, wherein the trough is below the at least one orifice to reduce the volume of suspension that can be accommodated within the container below the at least one orifice when the container is orientated with the valve at the bottom.
Patent CA-2393830-C (CA)
Inventor: DIDULO MIGUEL JENSEN
IPC: G09F3/00
Filed: 2000-12-15
Granted: 2008-10-21
Abstract: A computer-controlled identifier tag production system. The system employs perforated plastic sheets comprising a plurality of transparent identifier tags. The sheets are designed to be fed through a conventional ink jet or laser printer to print one or more of the tags in accordance with user input. Each sheet is a single layer in thickness and is sufficiently flexible and heat-stable such that it will not deform if passed through a printer multiple times. The printed tags are used in conjunction with a plastic holder and backer plate to form an adhesive-free identifier tag assembly. The backer plate is preferably a rigid metal plate which may be embossed with indicia, such as a corporate logo. The identifier tag assembly may further include a magnet or pin fastener for temporarily affixing the backer plate to an article of clothing.
Patent CA-2395050-C (CA)
Title: N-(5,7-dimethoxy[1,2,4]triazolo[1,5-a]pyrimidin-2-yl) arylsulfonamide compounds and their use as herbicides
Inventor: WALKER DAVID KEITH
IPC: C07D249/00
Filed: 2001-11-02
Granted: 2006-08-29
Abstract: N-(5,7-dimethoxy[1,2,4]triazolo[1,5-a]pyrimidin-2-yl) arylsulfonamide compounds were prepared from 2-amino-5,7-dimethoxy[1,2,4]triazolopyrimidine and appropriately substituted benzenesulfonyl chloride and pyridinesulfonyl chloride compounds. The compounds were found to be useful as herbicides.
Patent CA-2395174-C (CA)
Title: Film cutter assembly
Inventor: NEIBERGER SEAN
IPC: B26D1/06
Filed: 2000-12-20
Granted: 2008-04-01
Abstract: The present invention relates to a film cutter assembly in which a blade housing slides along a pair of rails. The blade housing is formed of an upper portion for housing the blade. Either end of the upper portion has a rounded inclined shape from a bottom edge to form a sled shaped runner. The sled shaped runner extends beyond the blade such that the user is prevented from touching the blade. A lower portion of the blade housing slidables bilaterally in a cavity formed below the rails. A clearance is formed between the blade and the rails to allow the blade housing to easily slide over a film to be cut even if the film bunched or doubled over. The upper portion of the blade housing has a concave shape for allowing a user's fingers to easily grip the blade housing. Preferably, the rails are formed of a material which provides an attractive charge to attract the film to the rail and help hold the film flat before and after cutting. For example, the rails can be formed of flexible vinyl or acetal.
Patent CA-2399223-C (CA)
Title: Device for determining the position of body parts and use of the device
Inventor: SEILER PAUL G
IPC: A61B90/00
Filed: 2000-02-02
Granted: 2011-08-02
Abstract: The invention relates to a device consisting of a catheter (K) for introducing into the human or animal body and to the use of said device. The inventive device is characterized in that at least a part of the catheter is elastic. At least one sensor unit (PS) for determining the current position is provided at least in the elastic part of the catheter (KK), preferably on its inner surface. Outside the body, a receiver unit is provided to which the signals measured by the sensor unit (PS) are transmitted.
Patent CA-2399318-C (CA)
Inventor: PEREZ FRANK
IPC: A01K83/00
Filed: 2002-08-21
Granted: 2006-06-13
Abstract: A fishhook having a shank and an integral curved bend portion terminating in a spear portion ending in a sharp point. The spear portion has an axis generally parallel to the shank with a generally uniform cross-section. The spear has a side facing the shank having a rounded barbed portion between the point and the curved bend portion.
Patent CA-2402351-C (CA)
Inventor: JACKSON MARK D
IPC: G06F21/00
Filed: 2001-03-08
Granted: 2010-06-01
Abstract: La présente invention concerne une architecture et un procédé destinés à une plate-forme spécifique aux jeux de hasard, comprenant le stockage (354) et la vérification (366) sécurisés de codes de jeux et d'autres données et permettant un échange de données sécurisé au moyen d'un système de pari informatique, de manière directe et facile à gérer. Certains modes de réalisation de l'invention permettent d'identifier un code programme de jeu comme certifié ou approuvé, par la Nevada Gaming Regulations Commission (l'organisme chargé de la réglementation en matière de jeux de hasard au Nevada) ou par tout autre organisme de réglementation, par exemple. Cette invention comprend les fonctions citées ci-dessus ainsi que d'autres fonctions de chiffrement (216) comprenant des signatures numériques (220) et des fonctions de hachage (210), ainsi que d'autres procédés de chiffrement.
Patent CA-2406523-C (CA)
Inventor: ITO KATSUYA
IPC: B29C47/10
Filed: 2002-04-26
Granted: 2005-12-06
Abstract: A film roll of a heat-shrinkable polyester film characterized in that the heat-shrinkable polyester film meets the following requirements (1) and (2). (1) When samples are cut off therefrom at an almost equal interval along the longitudinal direction, and immersed in hot water at 85°C for 10 seconds, subsequently in water at 25°C and withdrawn, heat-shrinkage percentages in the maximum shrinkage direction of all the samples are 20% or more. (2) When raw polymers used for production of the film above comprises of a major constitutional unit and one or more sub constitutional units different therefrom; and the content of the primary sub constitutional unit is determined, the content of the primary sub constitutional unit in each sample is more than 7 mole % in 100% of all constitutional units, and when an average of the contents of the primary sub constitutional unit is calculated, the contents thereof of all the samples fall within a range of ~2 mole % relative to the average.
Patent CA-2408579-C (CA)
Inventor: WANG XIAO MING
IPC: B08B9/04
Filed: 2002-10-17
Granted: 2004-12-28
Abstract: A pipeline cleaning and renovating method of the present invention comprises introduction of abrasive particulates by pressurized air through the pipelines to remove the incrustation adhering to the inner surface of the pipelines. Water or other liquids are introduced into the pipelines to generate or increase a moisture content in a flow of the pressurized air. The air flow through the pipelines is controlled to induce a substantially helical flow pattern such that a substantial amount of abrasive particulates are driven by the air flow to move along the inner surface of the pipeline in order to efficiently remove the incrustation. After the pipelines are cleaned, a coating material is added into the pipelines and driven by the air flow in the substantially helical flow pattern to provide an even coating film on the cleaned inner surface of the pipelines. This method can be broadly applied to various types of pipelines and various diameters of the pipelines from l3mm to 300mm. The length of the pipeline being cleaned at one time can be from several hundred meters to more than one kilometer, depending on the type of pipeline.
Patent CA-2409249-C (CA)
Inventor: WAKITANI TSUTOMU
IPC: E01H5/07
Filed: 2002-10-21
Granted: 2008-05-27
Abstract: Upon satisfaction of three predetermined conditions that 1) a straight-ahead travel instruction has been given, 2) an actual number of motor rotations is less than a target number of motor rotations and 3) a motor control signal produced to bring the actual number of motor rotations closer to the target number of motor rotations has reached a predetermined upper-limit output value, a downward motor-rotation correction process is performed repeatedly to progressively reduce the target number of motor rotations or to reduce the upper-limit output value of the motor control signal until the respective actual numbers of rotations of the left and right motors to substantially coincide with each other. -33-
Patent CA-2409926-C (CA)
Inventor: KENNEDY THOMAS J
IPC: A61K31/4965
Filed: 2001-05-18
Granted: 2009-11-03
Abstract: Disclosed herein are compositions and methods of treating therapeutically, or metaphylactically infected mammals susceptible to, or infected mammals suffering from parasitic neurologic or abortigenic diseases such as Sarcocystis, Neosporosis or Toxoplasmosis or Isosporosis that are treatable with a praziquantel compound by administering thereto a composition containing a pharmaceutically effective amount of praziquantel or derivative thereof, including metaphylactic and single high dose treatment regimens.
Patent CA-2416714-C (CA)
Title: Method for producing non-cellulosic callose fiber from plant protoplast and callose fiber
Inventor: KONDOU TETSUO
IPC: C12R1/91
Filed: 2001-03-30
Granted: 2011-03-08
Abstract: A method for producing non-cellulosic callose fiber by using plant protoplast, which imposes less burden to the environment with reduced energy consumption compared to conventional natural fibers is provided; it comprises the addition of an inorganic ion to a plant protoplast cultivation system, which leads the plant protoplast to produce non-cellulosic callose fiber.
Patent CA-2423804-C (CA)
Inventor: PERRY STEPHEN J
IPC: A61B17/115
Filed: 2002-06-28
Granted: 2011-11-15
Abstract: L'invention concerne un mécanisme de commande destiné à un dispositif de résection. Ledit mécanisme comprend un premier actionneur (160) couplé à un arbre d'entraînement flexible (163) servant à actionner un premier mécanisme, lorsqu'on le fait fonctionner dans une première direction (164), et servant à actionner un second mécanisme lorsqu'on le fait fonctionner dans une seconde direction (169). Ce mécanisme de commande comporte également un premier mécanisme de verrouillage couplé au premier dispositif d'actionnement, de manière à empêcher l'actionnement dudit premier dispositif d'actionnement dans la seconde direction, avant réalisation d'une quantité prédéterminée d'actionnement dans la première direction. En outre, des mécanismes permettent de commander la libération, au cours du fonctionnement dans une seconde direction de l'énergie de torsion stockée dans un arbre d'entraînement souple, pendant le fonctionnement dans une première direction.
Patent CA-2424105-C (CA)
Inventor: ABE HIROYUKI
IPC: H01M8/02
Filed: 2003-04-01
Granted: 2010-07-06
Abstract: An installation structure for a gas sensor capable of detecting gas concentration in a highly accurate manner is provided. The installation structure for a gas sensor which detects concentration of gas circulating inside an outlet-side piping comprises a through hole 18 in an inner wall of the outlet-side piping and the gas sensor comprises a gas inlet portion with one face open within the outlet-side piping 14, and the gas sensor is installed to the outlet-side piping in a condition where the gas inlet portion does not protrude from the inner wall of outlet-side piping.
Patent CA-2429331-C (CA)
Title: Modulator for electromagnetic signals transmitted by a contactless transmission/reception system
Inventor: PARRAULT OLIVIER
IPC: G06K7/00
Filed: 2002-09-13
Granted: 2012-08-28
Abstract: The invention relates to a device for transmitting data by means of electromagnetic wave radiation in a contactless transmission/reception system to a contactless object. The data bits transmitted correspond to the alternation of a first time interval during which the electromagnetic waves are transmitted at a pre-determined carrier frequency and a second cut-off time interval during which the transmission of electromagnetic waves at the pre-determined carrier frequency is cut-off. According to the invention, during said second cut-off time interval, generation means (40, 42, 44, 46, 48) are used to generate electromagnetic waves having a frequency that is double the pre-determined carrier frequency, thereby causing an attenuation of the field radiated by the antenna, said attenuation being greater than a pre-determined value such as 30 dB.