baber/WOPTO huggingface dataset:
Patent CA-2488810-A1 (CA)
Title: Method of preparing microparticles
Inventor: COLLINS IAN RALPH
IPC: C09K8/536
Filed: 2003-05-15
Abstract: A method of preparing microparticles comprising an aqueous solution or dispersion of an oil or gas field production chemical encapsulated in a continuous polymeric phase comprising a degradable polymer, which method comprises: (a) preparing a water in oil in water double emulsion or a water in oil in oil double emulsion having an internal aqueous phase comprising an aqueous solution or dispersion of the production chemical and an internal oil phase comprising a solution of a degradable polymer dissolved in a volatile organic solvent wherein the internal aqueous phase is dispersed in the internal oil phase of the double emulsion in the form of droplets having a mean diameter of less than 10 microns; and (b) at least in part evaporating the volatile organic solvent from the double emulsion such that the degradable polymer accumulates around the droplets of the internal aqueous phase and hardens to form microparticles comprising a continuous polymeric phase encapsulating the internal aqueous phase having a mean particle diameter of less than 10 microns.
Patent CA-2492188-A1 (CA)
Title: Impeller draft tube, shroud, impeller and aerator
Inventor: BEUSEKOM GERRIT
IPC: C02F7/00
Filed: 2005-01-10
Abstract: A shroud for an impeller used for aeration of contaminated water, has a front portion for a propeller, behind it is a rear portion with separate apertures for water and air, the air aperture accommodates the propeller shaft. A draft tube connected to the shroud has a stub tube at the rear end for air ingress. The propeller shaft passes through the draft tube, and a bearing box to a motor. The draft tube has a rear attachment plate to which the bearing box is attached. The bearing box has a bearing for the shaft held in place by a retainer, it also is attached at its rear to a motor mounting plate, on which the motor is mounted. The impeller is mounted on a swivel arm mounted pivotally on a frame, typically on a raft. The swivel arm allows the impeller to be positioned angularly and lockably in a plurality of angular positions from horizontal to vertical.
Patent CA-2492395-A1 (CA)
Title: Production of a zeolite-containing solid
Inventor: VOSS HARTWIG
IPC: C07B41/02
Filed: 2003-07-17
Abstract: The invention relates to a method for concentrating an at least partially crystalline solid containing at least one zeolite in a mixture, said mixture containing at least one auxiliary agent, for example a template compound, an d the cited solid. The inventive method is characterised in that the mixture i s divided into a retentate and a permeate in one step (II) by means of ultrafiltration, the solid content in the retentate being higher than that i n the mixture and the solid content in the permeate being lower than that in t he mixture. Said method enables auxiliary agents in the permeate, especially template compounds, to be redirected into a crystallisation step (I) which precedes the cited step (II).
Patent CA-2492418-A1 (CA)
Title: Methods and apparatus for operating gas turbine engines
Inventor: EARLY KEVIN SEAN
IPC: F02K3/062
Filed: 2005-01-13
Abstract: A method of assembling a gas turbine engine (10) includes coupling an annular exhaust duct (32) to the gas turbine engine, coupling a plurality of chevrons (52) to the annular exhaust duct, and coupling a chevron actuation system (70, 80) to the annular exhaust duct such that selective operation of the chevron actuation system repositions the plurality of chevrons to adjust an amount convergence of the annular exhaust duct.
Patent CA-2492571-A1 (CA)
Title: Lacrosse head having convex sidewalls
Inventor: GAIT PAUL
IPC: A63B59/02
Filed: 2005-01-13
Abstract: The present invention discloses a lacrosse head having a throat joining a pair of side walls. The side walls are then joined to a scoop or lip distal from the throat. The lacrosse head has inner edges and outer edges. The throat has a socket on the outer edge for receiving a handle and a ball stop on the inner edge for receiving the ball. The lacrosse head has an upper or open portion and a lower or net receiving portion. In between the upper and lower portions, there is a middle portion. The lower portion of the ball stop is curved toward the socket or in a manner that make the lower portion of the ball stop larges than the upper portion of the ball stop to better retain the ball. Further, the sidewalls are curve so that the area or perimeter of the upper and lower portions of the head at desired locations is larger than the middle portion. The sidewalls are curved in a convex direction relative to the inner edge of the lacrosse head.
Patent CA-2493719-A1 (CA)
Inventor: KRATSCH PETER K
IPC: A61F2/84
Filed: 2003-08-26
Abstract: A stent includes a central portion of helically wound undulations formed of struts, cylindrical end portions, and transition zones between the helical portion and the cylindrical portions. According to a first aspect of the invention, the torsional flexibility of the stent is maximized by having bridges connecting adjacent winding be interrupted by the maximum possible number of undulations. In a preferred design, each winding includes nineteen undulations around the circumference, bridges are provided every five undulations. According to a second aspect of the invention, uniform opening of the transition zone is achieved by altering the width, and thereby the flexibility, of a series of struts in accordance with their lengths. Specifically, the long transition zone struts are made wider.
Patent CA-2496614-A1 (CA)
Title: Automatic apparatus for storing and dispensing packaged medication and other small elements
Inventor: HUNTER STEVEN N W
IPC: B65G1/04
Filed: 2003-08-26
Abstract: The system includes a bin hopper which temporarily stores a plurality of sma ll elements, such as medications. The elements are moved out of the bin and singulated into a one-by-one sequence by a series of singulating conveyors. The resulting sequence of elements is moved onto a main system conveyor wher e the element is identified and then moved to a loading mechanism which arrang es the item so it is ready to be gripped and stored. The system includes a mass storage apparatus comprising a series of four upstanding cylindrical drums, each having a plurality of individually accessible and addressable cell storage locations for the elements. A gripping apparatus removes the element s from the loading mechanism and transfers them to a selected location in a cylindrical drum. When an article is to be dispensed, the drum is rotated so that an ejection arm comes adjacent the desired location in the drum. The ejector arm is actuated, pushing the small element out of its slot, into the center of the drum, where it falls onto a conveyor which moves the dispensed item from the system.
Patent CA-2497900-A1 (CA)
Title: Massaging device and forearm massaging machine
Inventor: INADA NICHIMU
IPC: A61H1/00
Filed: 2003-09-03
Abstract: A chair type massaging device being capable of treating the forearm of a subject in case of need, having no portion above the armrest that interferes with the placement of the arm when the forearm is not treated, and allowing the subject to take a free posture; and a forearm massaging machine used in this chair type massaging device. Therefore, the massaging device has a detachable member (38) installed on an armrest (5) for movement along guide rails (37), with a fitting groove (39) formed in the detachable member (38). A forearm massaging machine (7) constructed to be capable of grasping the forearm of a subject by a fixed support (46) and a gripper (47) to apply a pressing stimulus to the forearm is provided with a fitting projection (40). The forearm massaging machine (7) can be removably mounted on the armrest (5 ) by removably fitting the fitting projection (40) in the fitting groove (39).
Patent CA-2498860-A1 (CA)
Inventor: DREW THOMAS W
IPC: A63B59/00
Filed: 2005-03-29
Abstract: This invention provides a means for people who are experiencing difficulty, because of physical impairment, to deliver a curling stone, or other similar objects used in the field of sport.      There is no known similar device used specifically in the sport of curling.      The Canadian Curling Association has approved the use of a "curling aid" for general and officiated curling. Sections 17(2)(a) & 19(3) of rule book.        The Head of The Extender can be made of injection moulded polypropolene and is joined to a handle similar to that of a broom. This Head has a swivel member which locates on the curling stone handle and provides control of the degree of "spin" and direction desired of the curling stone by the participant. The "slip release" of the stone handle made possible by the half round design of the Swivel Member provides an unimpeded delivery of the curling stone.        The Extender may have other applications comparable to a curling stone.
Patent CA-2503348-A1 (CA)
Title: Semiconductor optical devices
Inventor: SUMMERS HUW DAVID
IPC: H01L31/0232
Filed: 2003-10-22
Abstract: A semiconductor optical device (e.g. a resonant cavity device in this form of an LED or a laser) comprises a single substrate arranged for emitting light (O) for incidence on a sample or other element and also responsive to light (D), e.g. of a different wavelenght, received back from this sample or other element: the device further comprises means for monitoring a characteristic (e.g. its current-voltage characteristic) which varies in dependence upon the light (D) received back from the sample or other element.
Patent CA-2503805-A1 (CA)
Title: Thermoplastic elastomer composition
Inventor: NAKABAYASHI HIRONARI
IPC: C08L23/06
Filed: 2003-10-16
Abstract: A thermoplastic elastomer composition which not only retains the vibration-damping properties characteristic of isobutylene polymers but also is rich in flexibility and excellent in moldability and rubbery properties and especially has improved compression set characteristics. The thermoplastic elastomer composition is characterized by comprising: (A) a composition obtained by crosslinking, with melt-kneading, an alkenyl-terminated isobutylene polymer with a hydrosilylated compound in the presence of at least one member selected from the group consisting of thermoplastic aromatic vinyl elastomers and olefin resins; and (B) at least one member selected from the group consisting of thermoplastic aromatic vinyl elastomers and olefin resins.
Patent CA-2504465-A1 (CA)
Inventor: OHI TAKU
IPC: A45C13/02
Filed: 2005-04-12
Abstract: A container, such as a toolbox, is disclosed with a reversible accessory holder. When the accessory holder is inserted into the container in a first position, the theft of the contents of the holder is prevented because the contents cannot be accessed from the exterior of the container nor can the holder be removed.  When the accessory holder is inserted into the container in a second position, its contents can be conveniently accessed from the outside of the container by opening the accessory holder door without opening the entire container.      A method of deterring the theft of items displayed in a container, while allowing access to those items from the outside of the container after purchase is also disclosed. The method includes inserting a reversible, transparent accessory holder into an aperture within a container, with the door of the holder facing the interior of the container, and then reversing the orientation of the holder to allow external access after purchase.
Patent CA-2506205-A1 (CA)
Inventor: MEIYAPPAN PALANIAPPAN
IPC: H04J99/00
Filed: 2002-11-07
Abstract: L'invention porte sur un appareil et un procédé d'attribution de porteuses dans un système à porteuses multiples. Dans une exécution, le procédé consiste: à déterminer la position (E, D, C, B, A) d'un abonné (520) par rapport à une station de base (510); à sélectionner des porteuses dans une bande de porteuses pour les attribuer à l'abonné (520) en fonction de sa position par rapport à la station de base (510); et procéder à leur attribution à l'abonné (520).
Patent CA-2506742-A1 (CA)
Inventor: LOYD ADRIENNE
IPC: A61F13/15
Filed: 2003-06-10
Abstract: La présente invention a trait à un article absorbant. L'article absorbant consiste en un tampon comportant un revêtement supérieur et une chicane inférieure. L'article absorbant comporte également un élément de conformation. L'élément de conformation est replié au sein du revêtement supérieur et de l'article absorbant. Le pli est orienté vers la chicane. La revêtement supérieur forme ainsi un joint d'extrémité à la surface inférieure de la chicane. L'invention a également trait à un procédé. Le procédé comprend la pliage de l'élément de conformation dans les rebords du revêtement supérieur et de la chicane, le revêtement supérieur et la chicane formant ainsi un pli unique.
Patent CA-2508788-A1 (CA)
Title: 3-pyrrolyl urea derivatives and their use as antiviral agents
Inventor: SCHOHE-LOOP RUDOLF
IPC: C07D403/06
Filed: 2003-11-26
Abstract: The invention relates to substituted pyrroles of formula (I), in which: R1 represents -OR8 or -NR9R10; R2 represents hydrogen, C1-C6 alkyl or aryl, whereby R2 as an alkyl can be substituted with 0, 1, 2 or 3 substituents R2- 1 independently of one another, selected from the group comprising halogen, hydroxy, C1-C6 alkoxy, hydroxycarbonyl, C1-C6 alkoxycarbonyl, C1- C6alkylcarbonyloxy, amino, C1-C6 alkylamino, aminocarbonyl, C1-C6 alkylaminocarbonyl, C3-C8 cycloalkyl, a 5- to 10-membered heterocyclyl, C6-C 10 aryl, phenoxy and a 5- to 10-membered heteroaryl and whereby R2 as an aryl c an be substituted with 0, 1, 2 or 3 substituents R2-2 independently of one another, selected from the group comprising halogen, hydroxy, nitro, cyano, trifluoromethyl, trifluoromethoxy, C1-C6 alkyl, C1-C6 alkoxy, hydroxycarbony l, C1-C6 alkoxycarbonyl, amino, C1-C6 alkylamino, aminocarbonyl, C1-C6 alkylaminocarbonyl, C3-C8 cycloalkyl, a 5- to 10-membered heterocyclyl, C6- C10 aryl and a 5- to 10-membered heteroaryl; R3 and R4 independently of one another represent hydrogen or C1-C6 alkyl; R5 and R6 independently of one another represent hydrogen or C1-C6 alkyl; and R7 represents a 3- to 12- membered carbocyclyl, whereby the carbocyclyl can be substituted with 0, 1, 2, 3, 4 or 5 substituents independently of one another, selected from the group comprising halogen, hydroxy, C1-C6 alkyl and C1-C6 alkoxy. The invention als o relates to a method for producing said pyrroles, to their use for the treatment and/or prophylaxis of diseases, in addition to their use for producing medicaments for the treatment and/or prophylaxis of diseases, notably to their use as antiviral agents, in particular against cytomegaloviruses.
Patent CA-2510870-A1 (CA)
Title: Cash drawer with separable connectors
Inventor: DENNIE GEORGE IVANHOE THEODORE
IPC: G07G1/00
Filed: 2005-06-10
Abstract: The invention is a customized cash drawer made from attaching seperable connectors for data and power ports through its surface. The invention includes for embedding an uninterruptible power supply that augments the power connectors but also the weight and therefore the function as "safe". The invention rationalizes the configuration of the point of sale terminal around the cash drawer to be the central physical component of the POS terminal. POS devices mounted on and near the cash drawer may have a ll their cabling terminated at the drawer, simplifying installation of systems and more readily tolerating existing counter design that do not anticipate computers.
Patent CA-2512191-A1 (CA)
Title: Embedding a session description message in a real-time control protocol (rtcp) message
Inventor: ALKOVE JAMES M
IPC: H04N21/6437
Filed: 2004-07-28
Abstract: Embedded within at least some Real-Time Control Protocol (RTCP) messages sent from a media content source to a recipient is a session description message (186) that describes a media presentation (186) being streamed to the recipient (102). The session description message (186) can be associated, for example, with one of a plurality of pieces of media content in a play list of media content (186) being streamed from the device (104) to the recipient (102). In accordance with certain aspects, an RTCP message that embeds a session description message (186) includes at least three fields: a first field containing data identifying the RTCP message as being a type that embeds a session description message (186); a second field containing data that is the session description message (186) for a media presentation; and a third field containing data identifying a length of the RTCP message, generated by summing the length of the first, second, and third fields.
Patent CA-2512234-A1 (CA)
Title: Membrane air dryer for vehicle air brake system
Inventor: NICHOLS RANDALL W
IPC: B01D53/26
Filed: 2004-03-03
Abstract: An air drying system for a vehicle including an membrane air dryer is provided. The air dryer is supplied with a stream of compressed air that has a low and constant concentration of oil vapor. A coalescing filter element may be used to maintain the oil vapor concentration. The filtered material may be discharged from the coalescing filter by a pressure swing drain valve, which discharges the filtered material upon unloading of the compressor.
Patent CA-2515523-A1 (CA)
Title: Hazardous substance removing method, hazardous substance removing material used therein such as air filter, mask, wipe sheet, and the like, and storage method thereof
Inventor: OZAWA SATOSHI
IPC: A62B18/02
Filed: 2004-03-26
Abstract: Hazardous substance (20) is removed by the use of hazardous substance removing material (10) comprising support (11) and, borne thereon, antibody (12). The humidity of ambient atmosphere around the antibody (12) is adjusted to one in which the antibody (12) exhibits activity.
Patent CA-2515852-A1 (CA)
Title: Ventilated confluent exhaust nozzle
Inventor: LAIR JEAN-PIERRE
IPC: B05B12/00
Filed: 2004-02-19
Abstract: An exhaust nozzle includes an outer duct surrounding an inner duct. The inner duct includes a main outlet, and a row of apertures spaced upstream therefrom. The outer duct includes a row of intakes at a forward end, an auxiliary outlet at an aft end, and surrounds the inner duct over the apertures to form a bypass channel terminating at the auxiliary outlet. A row of flaps are hinged at upstream ends to selectively cover and uncover the apertures for selectively bypassing a portion of exhaust flow from the inner duct through the outer duct in confluent streams from both main and auxiliary outlets. When the flaps cover the apertures, the intakes ventilate the bypass channel and discharge flow through the auxiliary outlet.
Patent CA-2517567-A1 (CA)
Title: Method of improving the operation of an existing ethylene oxide manufacturing process
Inventor: MADGAVKAR AJAY MADHAV
IPC: C07D301/10
Filed: 2004-02-26
Abstract: Described is a method of improving the process and operation of an existing system for manufacturing ethylene oxide. The ethylene oxide manufacturing system includes an epoxidation reactor system containing a volume of high activity epoxidation catalyst. The method includes replacing a portion of the volume of high activity epoxidation catalyst with a volume of high selectivity catalyst, and modifying the operation of the process system so as to provide for a feed to the epoxidation reactor system having a reduced carbon dioxide concentration.
Patent CA-2517788-A1 (CA)
Inventor: VAN ALSTINE JAMES
IPC: B01D15/32
Filed: 2004-03-18
Abstract: L'invention concerne un procédé permettant d'isoler des composés cibles d'un liquide, qui comporte les étapes consistant à : mettre le liquide en contact, à un premier pH, avec un milieu de séparation qui présente des polymères sensibles au pH localisés en surface afin d'adsorber le composé cible par des interactions hydrophobes ; et ajouter un éluant, qui présente un deuxième pH et produit un changement de conformation sur lesdits polymères, pour libérer les composés. L'élution est avantageusement mise en oeuvre au moyen d'un gradient de pH et/ou d'un gradient de sel.
Patent CA-2518110-A1 (CA)
Inventor: LOTT CHRISTOPHER GERARD
IPC: H04L12/56
Filed: 2004-03-05
Abstract: A method and apparatus for determining the data rate of a reverse link communication of an access terminal includes receiving a reverse activity bit (RAB) from an access point in the communication system, and passing the RAB to a digital filter to produce a filtered RAB. The reverse link data rate is determined based on the filtered value of the RAB. Furthermore, a processor in the access terminal may determine whether the access terminal is in an idle mode, and passing a non-busy state value of the RAB to the digital filter when the access terminal is in the idle mode. The filtered RA may be compared to a threshold to determine a mode of reverse link data rate determination. The mode defines a set of criteria for an aggressiveness level of increasing or decreasing the reverse link communication data rate. The processor, therefore, determines the data rate based on the filtered reverse activity bit in accordance with the determined mode.
Patent CA-2520975-A1 (CA)
Inventor: XUE WEIHAI
IPC: F24F13/08
Filed: 2005-10-04
Abstract: A control system and method for space ventilation and air conditioning economizer operation are disclosed. An economizer hood ventilator and its control cente r, integrating the operation of other space heating ventilation and air conditioning apparatus, are further disclosed. This low cost economizer hood ventilator and its control center a re invented mainly for both existing and future residential houses to meet controlled fresh air ventilation requirements. The manual operated principal ventilation switch can override any other automatic ventilation controls. When ambient air is available for free cooling, the system works as air conditioning economizer.
Patent CA-2522432-A1 (CA)
Title: Procede de criblage de conditions operatoires d'une reaction chimique de couplage et trousses pour la mise en oeuvre de ce procede
Inventor: RENARD PIERRE-YVES
IPC: G01N33/543
Filed: 2004-04-13
Abstract: La présente invention se rapporte à un procédé de criblage de conditions opératoires d'une réaction de couplage d'au moins deux groupements fonctionnels, et en particulier de catalyseurs utiles dans cette réaction de couplage, ainsi qu'à des trousses propres a permettre la mise en oeuvre de c e procédé. Applications recherche fondamentale et appliquée, en particulier da ns les secteurs de la chimie, de l'agroalimentaire, de la pharmacie et de la protection de l'environnement, pour le développement ou l'optimisation des rendements de réactions de synthèse.
Patent CA-2524079-A1 (CA)
Title: Preparation, in particular cosmetic preparation, and the production and use thereof
Inventor: SWISTOWSKI AZRA
IPC: A61K8/891
Filed: 2005-10-21
Abstract: Described is a preparation, in particular a cosmetic preparation, preferably in liquid or pasty form, for use on keratinic materials, in particular for decorating, coloring, improving the appearance of and caring for the skin and the skin appendages. The preparation is water-free and contains at least one wax with a dropping point above 60°C, a volatile oil, a non-volatile oil, an alkyl polysiloxane, an alcohol which is solid at ambient temperature, and a film-forming, flexible copolymer with a dropping point above 30°C.