baber/WOPTO huggingface dataset:
Patent CA-2420070-A1 (CA)
Inventor: BEAUDOIN NORMAND
IPC: F02B33/14
Filed: 2001-02-01
Abstract: When considering the main types of commercial engines available on the market, whether two-stroke, four-stroke or rotary-type, it is found that, and this is commonplace, said engines are highly polluting. The main reason for this lies in the difficulty to manufacture worn gas filters which would not induce restriction. However, that difficulty can be overcome by producing an engine which is itself capable of sustaining a high rate of restriction. The technical solutions disclosed by the invention present several embodiments enabling the engine to tolerate a higher level of restriction and consequently a more dense filtering. These various technical embodiments provide for a novel path for fresh gases through the engine. The invention provides a solution, which is not primarily concerned with fresh gas supply but rather with waste gas absorption, followed by their subsequent evacuation constituting the first stroke of said engine. Indeed, the waste gases are evacuated outwards by two successive steps: the gases are evacuated outwards by pumping, and said discharge generates, in turn, a vacuum which sucks in the burnt fresh gases which in turn finally suck in the fresh gases. Said techniques have the further advantage of producing two stroke engines powered with gas only, and consequently cleaner and more efficient.
Patent CA-2421565-A1 (CA)
Title: Methods and systems for controlling air filtration systems
Inventor: ARCHER WILLIAM R
IPC: B01D46/46
Filed: 2001-09-05
Abstract: Methods and control systems for improving performance in an air filtration system are disclosed. The method includes monitoring performance of a blower motor (16) in the air filtration system (10) and adjusting blower motor (16) torque based upon measured airflow (20) or measures static air pressure within the air filtration system (10).
Patent CA-2421947-A1 (CA)
Inventor: HAIK STEPHEN MICHEL
IPC: C10B57/04
Filed: 2001-09-12
Abstract: A method and apparatus for quenching the coke drum vapour line from a coke drum to the main fractionator in a coker unit whereby the volume of quench liquid prevents the drum vapour line from plugging with carbon-based deposit s. A differential pressure control technique is utilized to quench the drum vapours being delivered to the fractionator. Vapour line quench control by differential pressure prevents over-quenching of the vapour line during a co ke drum switch, unit start-up, or slowdown as well as under-quenching during dr um warm-ups.
Patent CA-2423838-A1 (CA)
Title: Polyolefin insulation compositions having improved oxidative stability
Inventor: LEE CHUN D
IPC: C08K5/24
Filed: 2001-09-28
Abstract: Improved stabilizer compositions which impart superior oxidative stability to polyolefins used for wire and cable insulation are provided. The stabilizer compositions are a mixture of a diacyl hydrazine compound and an alkylenebisacylamide compound. The stabilizer combinations are particularly useful for propylene polymer insulation compositions, Polyolefin compositions stabilized with the stabilizer combinations of the invention and jacketed construction utilizing same are also disclosed.
Patent CA-2424364-A1 (CA)
Inventor: OHTOMO TOSHIHIKO
IPC: C07K16/24
Filed: 2001-10-22
Abstract: L'invention concerne un anticorps modifié contenant au moins deux domaines V de chaîne H et au moins deux domaines V de chaîne L d'un anticorps monoclonal, lequel transduit un signal dans des cellules par réticulation d'un récepteur de la thrombopoïétine (TPO), de manière à agoniser TPO. Etant donné que cet anticorps peut être utilisé en tant qu'agoniste de transduction du signal de TPO, il est utile à titre préventif et/ou curatif dans des maladies du sang dans lesquelles il se produit une réduction des plaquettes, dans la thrombopénie consécutive à une chimiothérapie de cancer ou de leucémie, etc..
Patent CA-2425865-A1 (CA)
Inventor: WEILBACHER EUGENE E
IPC: A61M1/00
Filed: 1996-06-07
Abstract: The present invention provides for an improved airflow sensitive float valve interposed between the collection chamber and one arm of the water seal chamber for allowing the patient to draw as much vacuum pressure as is required during deep inspiration. The float valve also functions to provide for an automatic controlled release of excess negative pressure in the collection chamber during either continuous auto-transfusion or when there is a low airflow rate condition present. By tailoring a specific amount of water to a given size chamber, the water column inside the water seal chamber is allowed to momentarily engage the floating mechanism before the water seal chamber is emptied of water, and a column of air is subsequently forced through the water column towards the momentarily sealed valve.
Patent CA-2426035-A1 (CA)
Inventor: KEEFE ANTHONY D
IPC: C07K14/00
Filed: 2000-10-31
Abstract: The invention provides peptides with high affinity for streptavidin. These peptides may be expressed as part of fusion proteins to facilitate the detection, quantitation, and purification of proteins of interest.
Patent CA-2427055-A1 (CA)
Title: Dispositif tubulaire a electrode et membrane pour l'electrodialyse et l'electrodeposition
Inventor: WESCHKE JURGEN
IPC: C25D17/10
Filed: 2002-08-22
Abstract: Cellule tubulaire (1) pour électrodéposition et électrodialyse, destinée notamment à des processus de peinture par immersion dans un bain de peinture, et ayant de préférence une structure de support rigide (8), au moins une électrode (7) de façon à séparer le bain de peinture d'un liquide de dialyse circulant dans la cellule; des éléments (21, 24, 41, 42, 46) coopérant avec la structure de support (8) de façon à fixer la membrane (9) hermétiquement à la structure de support (8) et permettre son retrait.
Patent CA-2428577-A1 (CA)
Title: Multi-channel demodulation with blind digital beamforming
Inventor: REILLY JAMES
IPC: H04B7/08
Filed: 2003-05-13
Abstract: A communication signal receiver and associated method are disclosed. A plurality of communication signals are received at an antenna array and time multiplexed into a single multiplexed signal. Each of the communication signals comprises an unknown mixture of a plurality of source signals from a plurality of communication signal sources. A signal separation network is configured to separate the K source signals from the multiplexed signal.
Patent CA-2430820-A1 (CA)
Title: Marine gas cylinder apparatus
Inventor: SEKIKAWA SHINSUKE
IPC: F16F9/46
Filed: 2003-06-03
Abstract: In a marine gas cylinder apparatus provided with a switching valve apparatus capable of switching a communication state among a piston rod side oil chamber, a piston side oil chamber and a gas chamber, a relief passage communicating a communication chamber of the switching valve apparatus with the gas chamber is provided. A temperature compensating relief valve relieving an oil in the communication chamber to the gas chamber is provided in the relief passage.
Patent CA-2431764-A1 (CA)
Title: Movable comb advancing system for hair trimmers
Inventor: WILCOX JOHN
IPC: B26B19/20
Filed: 2001-12-14
Abstract: By providing a rotatable wheel (27) mounted in cooperating engagement with a longitudinally movable arm or slide member (28), an easily employed, dependable, and reliable movable comb control system (21) is achieved, enabling users to controllably move the comb member (22) on a hair trimmer (20) any desired distance. In the present invention, comb slots (33, 34) are formed in the wheel (27) with the slots (33, 34) positioned for controlled engagement with cam pins (42, 43) formed on the movable arm or slider (28). By employing this construction, rotational movement of the wheel (27) causes controlled movement of the cam pins (42, 43) which results in the desired longitudinal movement of the arm/slider (28). By securing the elongated arm/slider (28) to the comb element (22), either directly or through an interconnecting plate (26), the longitudinal movement of the arm/slider (28) causes the comb element (22) to move simultaneously therewith.
Patent CA-2431940-A1 (CA)
Title: Optical resonant frequency converter
Inventor: ZANGER ECKHARD
IPC: G02F1/37
Filed: 2001-12-13
Abstract: The invention relates to an optical resonant frequency converter consisting of two mirrors (1, 2) and a non-linear crystal (3) in a ring resonator arrangement, for converting a laser beam into a frequency doubled beam. Due to the refractive effect of the prism-shaped, non-linear crystal, two mirrors suffice in order to form a ring resonator having a total of three optical elements. A favourable choice of orientation of the axes of the crystal in relation to the direction of the laser beam reduces the dispersion in the crystal. In one form of embodiment, the entry surface of the crystal is at a  Brewster angle in relation to the beam, whereas the exit surface is perpendicular in relation to the same and has an anti-reflective coating. In  another form of embodiment, the converted beam is coupled out by means of a polarisation beam divider layer applied to one of the surfaces of the crysta l. In a further form of embodiment, the crystal surfaces are cylindrically arched. An elliptical beam profile is thus produced in the crystal, reducing  the walk-off effect.
Patent CA-2432786-A1 (CA)
Inventor: BUZOT HERVE
IPC: A61F13/26
Filed: 2001-12-18
Abstract: L'invention concerne un applicateur et un procédé permettant de livrer un objet à l'intérieur d'une cavité corporelle. En particulier, l'applicateur comporte un élément tubulaire d'insertion présentant une surface externe, une surface interne, une extrémité d'insertion, une première butée fixée à la surface interne à proximité de l'extrémité d'insertion, et une extrémité arrière à l'opposé de l'extrémité d'insertion. L'élément tubulaire d'insertion comporte une cage présentant une surface interne, une surface externe, plusieurs bras se prolongeant d'une partie d'extrémité interne en direction de l'extrémité d'insertion de l'élément tubulaire d'insertion, et une seconde butée fixée à la surface externe à proximité de l'extrémité interne de la cage. L'objet est retenu à l'intérieur de la cage jusqu'à sa mise en place dans le corps de l'utilisateur, et les première et seconde butées peuvent se mettre en prise afin de permettre la livraison de l'objet à l'intérieur de la cavité corporelle, la cage demeurant contrainte à l'intérieur de l'élément d'insertion.
Patent CA-2433044-A1 (CA)
Inventor: HILL JAMES M
IPC: A61L15/60
Filed: 2001-12-28
Abstract: The invention relates to non-water soluble hydrogels which can swell in wate r, and which are coated with steric or electrostatic spacers. Before being coated, the hydrogels comprise the following characteristics: absorbency und er load (AUL) (0.7 psi) of at least 20 g/g, and gel strength of at least 1600 P a. The coated hydrogels preferably have the following characteristics: centrifu ge retention capacity (CRC) of at least 24 g/g, saline flow conductivity (SFC) of at least 30 x 10-7 cm3 s/g, and free swell rate (FSR) of at least 0.15 g/g s  and/or a maximum vortex time of 160 s.
Patent CA-2433081-A1 (CA)
Inventor: LEE ELAINE
IPC: A61P9/14
Filed: 2001-12-26
Abstract: Compositions including liquid embolics, vaso-occlusive members and combinations thereod are described. Also described are methods of using these compositions.
Patent CA-2436448-A1 (CA)
Inventor: CHEN LAN BO
IPC: G06F19/00
Filed: 2002-02-01
Abstract: L'invention concerne un procédé de détection d'un corps cible dans un champ d'échantillon de plusieurs corps candidats par l'étiquetage par fluorescence différentielle de différentes parties du corps cible. La souplesse qu'offre l'utilisation de fluorophores permet la détection rapide de n'importe quel corps cible rare avec une grande efficacité et précision élevée.
Patent CA-2437358-A1 (CA)
Inventor: MACDONALD TIMOTHY L
IPC: A61P31/04
Filed: 2002-01-30
Abstract: L'invention concerne des analogues de sphingosine-1-phosphate (S1P) possédant une activité d'agents de modulation de récepteur de S1P, et leur utilisation pour traiter des maladies associées à une activité inappropriée du récepteur de S1P. Ces composés sont représentés par la formule (I), dans laquelle R¿1? représente C¿8?-C¿22? alkyle, C¿8?-C¿22? alcényle ou R¿12? représente O, ou R¿1? et R¿12? pris ensemble forment un aryle éventuellement substitué ou un hétéroaryle éventuellement substitué; R¿17? représente H, alkyle ou alkylaryle; R¿18? représente N ou CH; R¿2? et R¿3? sont indépendamment sélectionnés dans le groupe constitué par H, NH¿2?, et OH, à condition qu'au moins l'un de R¿2? et R¿3? représente NH¿2?; R¿4? est sélectionné dans le groupe constitué par hydroxyle, phosphate, phosphonate, méthylène phosphonate, méthylène phosphonate .alpha.-substitué, thiophoasphate et thiophosphonate; et R¿5? représente C¿8?-C¿22?alcényle.
Patent CA-2437852-A1 (CA)
Inventor: DAWSON GUY SIMON
IPC: E05B1/00
Filed: 2003-08-21
Abstract: A handle for a window operator. The handle includes a handle member 10 pivotally coupled to a base 11. A locking mechanism releasably locks the handle member 10 in a position relative to the base 11 which corresponds to an in-use position of the handle member. The locking mechanism includes a locking member 14 within the handle member 10. The locking member 14 performs a blocking action to prevent pivotal movement of the handle member relative to the base. The locking member has a push button 15 accessible to an exterior surface of the handle member whereby the locking member can be moved to remove the blocking action and allow the handle to be pivoted to a non-use position.
Patent CA-2439179-A1 (CA)
Title: Methods and materials for making and using transgenic dicamba-degrading organisms
Inventor: WANG XIAO-ZHUO
IPC: C12N5/10
Filed: 2002-02-28
Abstract: The invention provides isolated and at least partially-purified dicamba- degrading enzymes, isolated DNA molecules coding for dicamba-degrading enzymes, DNA constructs coding for dicamba-degrading enzymes, transgenic hos t cells comprising DNA coding for dicamba-degrading enzymes, and transgenic plants and plant parts comprising one or more cells comprising DNA coding fo r dicamba-degrading enzymes. The invention further provides a transit peptide for use in a DNA construct comprising such dicamba-degrading enzymes that targets said dicamba-degrading oxygenase to organelles of a plant cell. Expression of the dicamba-degrading enzymes results in the production of dicamba-degrading organisms, including dicamba-tolerant plants. The inventio n further provides a method of controlling weeds in a field containing the transgenic dicamba-tolerant plants of the invention and a method of decontaminating a material containing dicamba comprising applying an effecti ve amount of a transgenic microorganism or dicamba-degrading enzyme(s) of the invention to the material. Finally, the invention provides a method of selecting transformed plants and plant cells based on dicamba tolerance and a method of selecting or screening transformed host cells, intact organisms an d parts of organisms based on the fluorescence of 3,6-dichlorosalicylic acid produced as a result of dicamba degradation.
Patent CA-2444121-A1 (CA)
Title: Antiperspirant actives from a glass form and products made therewith
Inventor: FAN AIXING
IPC: A61K8/26
Filed: 2002-04-12
Abstract: A method for forming micronized antiperspirant salts is disclosed wherein the method comprises the steps of: (1) forming an aqueous salt solution of a parent salt wherein the solution has a glycol content of less than 5 weight %;  (2) pouring the salt solution onto a bounded flat surface; (3) evaporating the solvent from the salt solution so as to form a glass; (4) breaking up the glass using one or more steps to form particles having an average size in the range of 0.5-2.00 cm2; (5) mixing the particles from step (4) with a non-aqueous liquid vehicle in which the salt is not appreciably soluble and subjecting the mixture to an intermediate grinding process to form a suspension with particles having an average size of less than 200 microns; and (6) grinding the mixture from step (5) at a temperature in the range of 20-70 degrees C. without added water or external heating being required so that the particles in the suspension have an average particle size of less than or equal to 20 microns.
Patent CA-2444207-A1 (CA)
Title: Device for attenuating cavity noise in a tire and wheel
Inventor: TSIHLAS DIMITRI
IPC: B60C5/00
Filed: 2001-04-19
Abstract: A device for attenuating noise generated in a rolling tire and wheel assembly includes strips arranged as a circumferential ring (40) in the tire/whell cavity. The strips are spaced circumferentially to provide a profile of ridges and gaps in the ring. The rings may (40) be placed on the interior surface of the tire or the wheel or both. Preferably, two rings are formed, and the gaps of ths rings are in staggered relationship about the circumferential direction.
Patent CA-2446918-A1 (CA)
Inventor: DE KLERK COLETTE
IPC: C07C337/06
Filed: 2002-04-02
Abstract: L'invention concerne un procédé de production d'un thiosemicarbazide, consistant à faire réagir une alkylamine avec du sulfure de carbone en présence d'une base, choisie entre la N,N-diisopropyléthylamine et la N,N,-diisopropylméthylamine, pour obtenir un produit intermédiaire, puis à convertir ce produit intermédiaire en thiosemicarbazide. Ce procédé peut être mis en oeuvre en particulier pour produire du 4-méthyl-3-thiosemicarbazide, un produit intermédiaire utile dans la production de l'herbicide à large spectre tebuthiuron.
Patent CA-2448566-A1 (CA)
Title: Hydrophilic protective layers bonded on hydrophobic substrates for use at elevated temperature
Inventor: NGUYEN THINH T
IPC: F27D27/00
Filed: 2002-05-28
Abstract: The invention concerns a method of coating a hydrophobic substrate (5,15,16) with a hydrophilic protective layer free of organic carbon (20A,20B,20C,20D) to protect the substrate (5,15,16) when used at high temperature. The method comprises: applying one or more layers of a slurry comprising hydrophilic colloidal particles and/or hydrophilic inorganic polymeric particles onto th e hydrophobic substrate followed by drying to form a heat stable intermediate bonding layer on the hydrophobic substrate. One or more layers of a slurry forming the hydrophilic protective layer are applied onto the intermediate bonding layer followed by drying and/or heat treating to form the hydrophili c protective layer on the intermediate bonding layer. The slurry forming the intermediate bonding layer contains at least one carbon compound selected fr om hydrophobic carbon monomers and hydrophobic carbon polymers and comprising hydrophilic substituents in an amount sufficient to bond the hydrophilic colloidal/inorganic polymeric particles to the carbon compound(s).
Patent CA-2448708-A1 (CA)
Title: Single layer, greaseproof, flexible paper popcorn package
Inventor: MCDONALD DUANE L
IPC: B65D33/18
Filed: 1993-01-29
Abstract: A package for use in microwave ovens is disclosed in its preferred form of a flexible, tubular bag (18) including expandable side walls (26) interconnected between bottom and top walls (20, 22), an openable end (28), and a permanent end wall (24). The side walls (26) include pleats (26a, 26b, 26c, 26d) which are folded in a collapsed condition of the bag (18) and expand due to internal expansion forces generated by the popping of kernels and the creation of water vapor. In a preferred form, the bag (18) is formed from a single layer of flexible, greaseproof paper of highly refined raw fibers of 100% chemical softwood pulp and having a basis weight in the order of 35 lb/ream. The single layer of paper forming the bag (18) provides greaseproof properties in storage, transportation, and cooking throughout the thickness of the paper to prevent wicking and leaking of grease or oil through the single layer. The bag (18) in a preferred form includes grease protectors (42a, 42b, 42c, 42d) located inside of the bag (18) for sealing the bottom and top walls (20, 22) to the pleats (26a, 26b, 26c, 26d) adjacent to their respective connecting edges and in a most preferred form further includes grease protectors (44a, 44b) outside of the bag (18) for sealing the first and second pleats (26a, 26b) together and the third and fourth pleats (26c, 26d) together adjacent to their respective connecting edges. The grease protectors (42a, 42b, 42c, 42d, 44a, 44b) seal the surfaces of the bag (18) just above and adjacent the connecting edges to block the flow of grease to prevent grease wicking or leaking from the bag (18).
Patent CA-2449231-A1 (CA)
Inventor: NUNN STEPHEN LANARD
IPC: A61F13/20
Filed: 2002-05-24
Abstract: An absorbent article (40) such as a labial pad configured for disposition within the vestibule (42) of a female wearer. The labial pad may be worn by human females for catamenial purposes, incontinence protection or both, and has at least one notch (100) generally formed in the periphery thereof.
Patent CA-2450587-A1 (CA)
Inventor: COMMUNI DAVID
IPC: C12Q1/68
Filed: 2002-07-09
Abstract: The invention relates to the identification of TIG2, the polypeptide product of Tazarotene-Induced Gene-2, as a natural ligand of the ChemR23 G-protein coupled receptor (GPCR). The invention encompasses the use of the interactio n of ChemR23 polypeptides and TIG2 polypeptides as the basis of screening assa ys for agents that modulate the activity of the ChemR23 receptor. The invention also encompasses diagnostic assays based upon the ChemR23/TIG2 interaction, as well as kits for performing diagnostic and screening assays.
Patent CA-2450848-A1 (CA)
Title: Functional test and demonstration apparatus for fuel cell power system
Inventor: HWANG JEN-JIANG
IPC: H01M8/04
Filed: 2003-11-25
Abstract: A functional test and demonstration apparatus for a fuel cell power system includes a control device, a fuel cell stack, at least one electric load, a hydrogen gas supply pipeline, an air supply pipeline, and a connection and display panel. The connection and display panel communicates physically and electrically with the various components of the fuel cell power system, and displays various electric parameters and hydrogen gas supply and air supply conditions during operation of the fuel cell power system, facilitating the performance of a functional test or demonstration of the fuel cell power system.
Patent CA-2453709-A1 (CA)
Inventor: LAUZON ROCH
IPC: G08B3/10
Filed: 2003-12-18
Abstract: The present invention is a system and method for wireless emergency notification. In embodiments, a Civic Notification Service Centre (CNSC) generates a notification message, the notification message including a location identifier and notification information. The location identifier represents a geographical area such as a postal code, city street, neighborhood, or municipality. The CNSC transmits the notification message to a message switch that translates the location identifier to at least one device identifier such as a CAP code that is allocated to a set of notification devices assigned to the geographical location defined by the location identifier. Alternatively, the device identifier could be directly input within the notification message. After translation, the resulting notification message is transmitted to a set of base stations which subsequently transmit the notification message to a plurality of notification devices. The notification devices programmed with the device identifier within the notification message process the notification information. In some cases, a select set of base stations could be defined to transmit a notification message and therefore a limited wireless coverage area would be used that primarily focuses on the geographical area defined by the location identifier of the message. This notification system allows for the bypassing of the PSTN  which ensures that in times of emergency, when the PSTN tends to be over-loaded, the notification message can still be delivered to the appropriate notification devices.