baber/WOPTO huggingface dataset:
Patent CA-2362721-A1 (CA)
Title: Method and process for separating materials in the form of particles and/or drops from a gas
Inventor: ILMASTI VEIKKO
IPC: B03C3/66
Filed: 2000-03-03
Abstract: The invention relates to a method and device for separating materials in the  form of particles and/or drops from a gas flow, in which method the gas flow  is directed through a collection chamber the outer walls of which are grounded, and in which high tension is directed to the ion yield tips arrang ed in the collection chamber, thus providing an ion flow from the ion yield tip s towards the collection surfaces, separating the desired materials from the g as flow. It is characteristic of the invention that the collection surfaces conducting electricity are electrically insulated from the outer casings; an d that high tension with the opposite sign of direct voltage as the high tensi on directed to the ion yield tips is directed to the collection surfaces. According to an embodiment of the invention the electrical insulation is mad e of ABS, and the surface conducting electricity comprises a thin chrome layer  arranged on the insulation layer.
Patent CA-2363851-A1 (CA)
Title: Use of collagenase in the preparation of neural stem cell cultures
Inventor: UCHIDA NOBUKO
IPC: C12N5/02
Filed: 2000-02-25
Abstract: The invention provides a method for using collagenase to dissociate neural stem cells in neural stem cell cultures. The collagenase treatment results i n an increased cell viability and an increased number of proliferated neural stem cells over time.
Patent CA-2364256-A1 (CA)
Title: Motor cooling system
Inventor: JEPPESEN GREGORY C
IPC: H02K9/04
Filed: 2000-03-10
Abstract: A motor cooling system (10) for an electric motor (20) having a rotor (60), mounted on a rotor shaft (62) rotatable about a central axis and a stator (70), comprises a fluid nozzle (100) extending through an aperture disposed in said motor (20) having an inlet (104) oriented to allow a compressed cooling  fluid, preferably compressed air, to expand rapidly therefrom and direct sai d cooling fluid circumferentially around said motor (20) interior. A plurality  of exhaust ports (120) are provided to maintain a positive pressure differential between upstream (80) and downstream (90) chambers of said moto r (20), thereby enhancing cooling fluid flow through the rotor-stator gap (72) .
Patent CA-2367816-A1 (CA)
Inventor: YU HENRY
IPC: H02J3/01
Filed: 2002-01-15
Abstract: A controllable broad-spectrum filter is developed. This filter is to be connected in series ahead of the load which generates harmonics in 3-phse 3-wire systems.  This filter basically consists of 3 fixed elements, i.e. a series reactor, a shunt reactor in series with a capacitor. It can function to filter out 5th harmonic current completely and other harmonic components at high percentages say, typically close to 70%. Thus the portions of various harmonics flowing toward the electrical power source are within the acceptable limits. By changing these two reactors and capacitor, a desirable and controllable filtering performance can be achieved. A satisfactory performance of the filter and the electrical system can be expected by use of this invented filter with only 3 major elements.        A voltage compensator, a reactor of negative value" is recommended to compensate the harmonic voltage distortion across the series reactor (or the filter), if necessary.
Patent CA-2370100-A1 (CA)
Title: Method for down-converting an electromagnetic signal
Inventor: SORRELLS DAVID F
IPC: H03D3/00
Filed: 2000-04-14
Abstract: Methods, systems, and apparatuses, and combinations and subcombinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (1/2, 1 , 2 , etc.) of the carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.
Patent CA-2370499-A1 (CA)
Title: Gas flow control in gas-assisted esu
Inventor: CRENNER JAMES C
IPC: F17D3/01
Filed: 2000-04-25
Abstract: A gas delivery apparatus used in gas-assisted electrocoagulation temporarily reduces a gas flow rate in a flowpath to an application which applies the flow of gas and electrical energy to the tissue during an arc initiation sequence. The reduced gas flow rate enhances the arc initiation capabilities and reduces the possibilities of embolism. After the arc initiation sequence is complete, the gas flow rate returns to a greater rate used during electrocoagulation. The back pressure in the flowpath and a user requested flow rate are control variables used to reduce the flow rate upon the occurrence of back pressure-related conditions and to increase the flow rate after the dissipation of those back pressure conditions.
Patent CA-2372353-A1 (CA)
Title: Torque pin
Inventor: PETAR VRANJES
IPC: F01D5/06
Filed: 2002-02-19
Abstract: A torque pin includes a generally cylindrical body defining an external sidewall and having a longitudinal extending bore formed therein. The body also has a radially extending slot provided in the sidewall that intersects the bore. A  cam is pivotally coupled to the body and is accommodated by the slot. The cam is moveable between an unlocking condition where the cam is fully accommodated by the slot and a locking condition where the cam is partially accommodated by the slot and extends outwardly beyond the sidewall. A retaining mechanism is disposed in the bore.  The retaining mechanism acts on the cam when the cam is in the unlocking condition and moves into the slot when the cam is in the locking condition thereby to inhibit the cam from returning to the unlocking condition.
Patent CA-2374037-A1 (CA)
Title: A cochlear implant electrode array
Inventor: TREABA CLAUDIU-GHEORGHE
IPC: A61L27/00
Filed: 1999-05-21
Abstract: An electrode array (10) for a cochlear implant is formed with a carrier made, for example from silicone, is preshaped and is formed with a lumen. The array (10) is shaped to assume a first configuration. The array (10) can be straightened, and held in a straight configuration by inserting a stylet (44) into the lumen. The array (10) relaxes to a shape matching the curvature of the cochlea (48) when the stylet (44) is removed. The electrodes of the array (10) are disposed on one side of the array (10) to face the modiolus when that array (10) is inserted into the cochlea (48).
Patent CA-2374145-A1 (CA)
Title: Extendable rack
Inventor: LAWSON STEPHEN
IPC: A47B96/06
Filed: 2002-03-21
Abstract: The present invention provides an extendable rack adapted for retaining one or more cantilever support(s) and also adapted for attaching to a fixed panel via a slide of ball bearing drawer type having an outer and inner cage. The extendable rack comprises an elongated body including, at one side, a longitudinal channel for retaining one or more cantilever support(s); and, at another side, a longitudinal passage, U-shaped in cross section, having a length commensurate with a length of the elongated body, and adapted for locating almost entirely the slide of ball bearing drawer type, so that the latter extends laterally beyond the longitudinal passage. The slide of ball bearing drawer type is attached via the outer cage to the elongated body and via the inner cage to the fixed panel.
Patent CA-2374951-A1 (CA)
Inventor: SHIMIZU TAKEHIRO
IPC: C08J7/044
Filed: 2000-05-18
Abstract: An optical element in which a hard coat layer is formed on an organic glass base material surface via a primer layer.  For a primer composition forming a primer layer, whole or the main body of the primer layer formation polymer is made as being ester based TPE. Moreover, a hard coat composition forming a hard coat layer is consisted of a hydrolysate of alkoxysilane in which trialkoxysilane containing monoexpoxy organic group is the main body as a matrix formation ingredient, and the titanium based metal oxide complex particle as being an optical interference control agent, the foregoing titanium based metal oxide complex particle is consisted of T1O2 as the main body, S1O2 as a major sub-ingredient, and further, ZrO2 and K2O as a trace sub-ingredient.An optical element of the present invention is capable of suppressing optical interference even if it is a high refractive index base material and the stability of coated film portion is also excellent as well as has a variety of properties comparable to the conventional optical parts.
Patent CA-2375438-A1 (CA)
Inventor: KHAJEHPOUR JAVAD
IPC: H03D7/14
Filed: 2002-03-08
Abstract: The invention is implemented in the form of modifications to a Gilbert mixer circuit. The modifications alleviate disadvantages and problems introduced because of low voltage power supply typically found in low-power devices such as portable cellular phones. In addition to improving the linearity performance, the new design also provides good matching between I and Q signals, and decreases the switching noise in the active mixer by reducing the switching current. The invention can be applied to both single stage and dual mixers to give low noise performance and Automatic Gain Control (AGC).
Patent CA-2375955-A1 (CA)
Inventor: FRANZMANN DIRK
IPC: A61F5/44
Filed: 2000-06-23
Abstract: The invention provides a process and apparatus for the manufacture of disposable absorbent articles comprising the application of discrete web panels (40a, 40b) to a receiving web (1), wherein a plurality of first web panels (40a) and second web panels (40b) are cut from the same continuous web (40), and wherein the process comprises the steps of: cutting the continuous web (40) to form at least a first web panel (40a) and a second web panel (40b); rotating the second web panel (40b); and applying the first web panel (40a) and the second web panel (40b) to the receiving web (1). The object of the invention is achieved by rotating the second web panel (40b) about an axis (A) perpendicular to the plane of the second web panel (40b).
Patent CA-2375991-A1 (CA)
Title: Call setup method
Inventor: OLKKONEN MIKKO
IPC: H04W92/02
Filed: 2000-06-21
Abstract: The invention concerns transmission of calls in an environment, where both a fixed telephone network and a packet data network are used for transmission of a call. The invention is applicable in situations, when a second network, i.e. a packet data network is used in combination with a circuit switched telephone network, such as a conventional telephone network or a cellular telephone network. According to the invention, a network element of the telephone network which receives data from an incoming leg of a connection and forwards the data to an outgoing leg of a connection monitors its connections, and when it observes that both the incoming and the outgoing legs of a connection are transmitted via a packet data network to the previous or correspondingly the next network element of the telephone network, it releases the connection to the previous network element of the telephone network and indicates a packet network address corresponding to the next telephone network element, after which the previous telephone network element may transmit data via the packet data network directly to the next telephone network element.
Patent CA-2377457-A1 (CA)
Inventor: HAUK THOMAS D
IPC: B25B13/50
Filed: 2002-03-19
Abstract: A pipe making and breaking apparatus having top, middle and bottom wrenches connected to a frame. A torquing cylinder operatively extends between the middle wrench and the frame and when actuated through one or more torquing cycles causes an upper pipe to make (top and middle wrenches) or break (middle and bottom wrenches) relative to a lower pipe. A grip hold actuator maintains the middle wrench in the gripping position continuously during the making torquing cycles. A continuous chain spinner above the top wrench spins the top pipe to make a position or away from a make position. The spinner can be a stand alone unit or can hang freely in the derrick or can be part of the make/break apparatus. A spinner drive chain motor when pressurized and when an oiler button is actuated causes lubricant to be sprayed out a nozzle on the (moving) chain.  Windows (guide gates) and/or guide posts direct the chain so as to not bunch up against the casing sprockets.
Patent CA-2378408-A1 (CA)
Title: Polynucleotide amplification method
Inventor: NUNOMURA KIYOTADA
IPC: C12Q1/6865
Filed: 2000-07-21
Abstract: Methods useful for improving results obtained with enzyme-based polynucleoti de amplification reactions. More particularly, the invented methods are useful for: (1) promoting amplification of template-specific products such that the  amount of amplicon produced reflects the pre-amplification amount of analyte , even in reactions primed with low levels of analyte polynucleotide; (2) facilitating biological specimen processing such that the amount of amplicon  produced in subsequent amplification reactions will be substantially independent of the efficiency of analyte polynucleotide isolation from the specimen; and (3) controlling the amount of analyte amplicon produced in the  amplification reaction.
Patent CA-2378554-A1 (CA)
Title: Hurricane resistant foam-concrete structural composite
Inventor: MOORE PAUL K
IPC: E04B1/16
Filed: 2000-07-07
Abstract: The present invention is directed toward a new method of building constructi on which eliminates traditional framed wall and trussed roof construction methods. The method of construction utilizes a polymer bonded foam-concrete structural composite building material formed from a styrene foam having a fiber reinforced, ethylene-vinyl acetate containing concrete emulsion integrally cured thereto, resulting in enhanced impact resistance and enhanc ed ability to withstand tensile load. The resultant structure has enhanced thermal insulation properties. The invention is further directed to a foam panel interface construction which renders the resultant structure imperviou s to wind damage at velocities in the range of about 155-310 mph.
Patent CA-2378781-A1 (CA)
Inventor: KORPI MARKKU
IPC: H04L29/06
Filed: 2000-06-21
Abstract: An H.323 system in which a simple gatekeeper (108) may support a plurality of virtual private networks or virtual domains. Client terminals (102a, 102b) are provided with communication domain identifiers (CDI) which identify the terminals' domain. The CDI is provided during call setup and used during address resolution.
Patent CA-2380044-A1 (CA)
Title: Spray gun/applicator
Inventor: BIEN FRANK C
IPC: B05B7/04
Filed: 2002-03-28
Abstract: An applicator is provided which through the use of valve assemblies and separate first and second tubing member delivers two separate materials separately to a mixing head. The mixing head is provided with two separate passageways which terminate into an outlet passageway. To help create equal pressure between the materials at the point where the materials meet, an impinger can be placed in one or both of the mixing head passageways. Material flowing into each mixing head passageway first meet and are mixed in the outlet passageway. A tip is attached to the mixing head and a static mixer can be disposed within the tip for further mixing of the combined materials prior to their application out of the tip onto the intended surface. Material is supplied to the valve assemblies by various methods such as hoses.
Patent CA-2381622-A1 (CA)
Title: Implementation of call setup procedures with separation of call control and bearer control
Inventor: STUMPERT MARTIN
IPC: H04M3/42
Filed: 2000-07-19
Abstract: The invention herein relates to implementation of basic call set-up for GSM/UMTS core networks, including supplementary services CFU, CFB, CFNREA, CFNRY, CW, HOLD  and MPTY, with transporting Media Gateway address and logical point coding and framing information in a forward direction in cellular networks with separation of call control and bearer control. Call set-up is described in various traffic cases.
Patent CA-2382098-A1 (CA)
Title: Sustained-release, oral pharmaceutical forms of administration
Inventor: ZIEGLER IRIS
IPC: A61P25/08
Filed: 2000-08-03
Abstract: The invention relates to oral pharmaceutical forms of administration with an at least partially delayed action. The pharmaceutical active agent contained in said forms of administration, tramadol, is at least partially in the form of a compound formed in situ with a water solubility <=  100 mg/ml. The invention also relates to methods for preparing the inventive forms of administration.
Patent CA-2382559-A1 (CA)
Title: Method for monohalogenating aminoaromatic derivatives
Inventor: SPINDLER JEAN-FRANCIS
IPC: C07C211/52
Filed: 2000-08-24
Abstract: The invention relates to a method for producing a compound of general formula (I). The method is characterized in that a compound of general formula (II), wherein R¿1?, R¿2?, A, X and n have the meanings given in general formula (I) and wherein at least one of the positions situated in para or in ortho of the amine function is free; is reacted with a sufficient quantity of halohydric acid HY, with Y having the meaning given in the general formula, in the presence of an oxidizing agent that is capable of consuming H?+¿ protons. The reaction is carried out under such conditions of acidity that at least part of the compound of general formula (II) is in a protonated form when it comes into contact with the oxidizing agent and that said compound of general formula (I) is obtained.
Patent CA-2383000-A1 (CA)
Inventor: SMITH JEFFREY C
IPC: G06F21/31
Filed: 2000-08-16
Abstract: Selon la présente invention, on augmente la sécurité d'une messagerie Internet fonctionnant selon un paradigme <= pousser >= au moyen d'une authentification de destinataire spécifique. Plus particulièrement, un document peut être envoyé vers un destinataire spécifique par l'intermédiaire du Web à l'aide d'une notification de destinataire de message électronique, ce destinataire étant authentifié avant que le document en question ne lui soit envoyé. Ladite authentification empêche un pirate informatique d'intercepter un message électronique de notification d'envoi et de récupérer le document avant sa récupération par le véritable destinataire. Par ailleurs, l'expéditeur effectue cette authentification de destinataire de façon qu'une participation préalable dudit destinataire à ce système de messagerie soit requise selon la présente invention.
Patent CA-2385748-A1 (CA)
Title: Method and apparatus for locating the injection point of an implanted medical device
Inventor: BARRETT JOSEPH
IPC: A61M5/42
Filed: 2000-09-28
Abstract: A method and apparatus for locating the injection point of an implanted medical device. In a preferred embodiment, the locating apparatus is in the form of radiopaque rings (22 and 24) made of a metallic substance. When thes e rings are spaced apart at different heights on an implanted medical device, such as a drug port (10), a stereoscopic effect results from fluoroscopicall y viewing the device along an axis not parallel to the axis along which the rings are spaced. This effect allows onc to readily determine the orientatio n of the device. This prevents accidental injection of drugs into the hard backside of the drug port.
Patent CA-2386540-A1 (CA)
Inventor: RANA TARIQ M
IPC: A61P1/00
Filed: 2000-10-04
Abstract: L'invention porte sur de nouveaux carbamates et urées, et leurs sels pharmacocompatibles, sur des préparations les comprenant, et sur des procédés de traitement ou de prévention du cancer, des inflammations ou des infections virales consistant à administrer à un patient nécessitant un tel traitement ou une telle prévention une quantité à efficacité thérapeutique desdits carbamates et urées, ou de leurs sels pharmacocompatibles.
Patent CA-2387356-A1 (CA)
Inventor: LIU JIH-HUA
IPC: A61P31/04
Filed: 1997-12-19
Abstract: The present invention concerns the novel antibiotic 6-O-methylerythromycin A form 0 solvate of formula (I), a process for its preparation, pharmaceutical compositions comprising this compound and a method of use as a therapeutic agent.
Patent CA-2388227-A1 (CA)
Title: A human gene over-expressing animal and test methods using the animal
Inventor: KITAYAMA HIROAKI
IPC: C12N15/85
Filed: 2000-10-05
Abstract: An animal with the mass expression of a human gene which is a non-human anim al obtained through the ontogenesis of a totipotent cell of a non-human animal having a human hematopoietic prostaglandin D2 synthase gene transferred thereinto or its offspring, characterized by carrying the above-described ge ne in its somatic cell chromosome and expressing human prostaglandin D2 synthas e on a mass scale; and a method of testing the activities in individuals of candidates for anti-allergic drugs, sleep-controlling drugs and candidates f or antiobestics by using the above animal.
Patent CA-2389760-A1 (CA)
Title: Composition and process for oil extraction
Inventor: DEMAKHIN ANATOLY
IPC: C09K8/565
Filed: 2000-11-01
Abstract: The invention relates to a composition for use in the extraction of oil and to a method of extracting oil using the composition. The composition comprises components A, B and C in which: A is a first solid hydrophobic material which is insoluble in an organic solvent selected from light fractions of petroleum, distillate, kerosene, acetone, gasoil, hexane, benzene and condensate; B is a second hydrophobic material which is either soluble in or can be emulsified with an organic solvent selected from light fractions of petroleum, distillate, kerosene, acetone, gasoil, hexane, benzene and condensate; and C is a retention improving material comprising a mineral material. A solvent, D, is added before the composition is used to treat an oil well. In oil well systems in which water or surfactant is pumped into the stratum through an injection well under pressure so that petroleum is forced from the rock stratum into the bottom hole zone of an extraction well, the composition is added to the extraction well.
Patent CA-2391067-A1 (CA)
Title: Versatile surface heating cartridge for cooking appliance
Inventor: BARRITT WILLIAM D
IPC: H05B3/00
Filed: 2002-06-21
Abstract: A versatile surface cooking cartridge for use in an appliance includes a lower container portion to which is attached a lid member. A first heating element is arranged in the lower container portion and a second heating element is carried by and extends along a lower surface of the lid member. One of a replaceable rack or cooking plate can be positioned in the lower container portion, above the first heating element, to enable food items to be cooked by heat generated by either or both of the first and second heating elements. The cooking plate preferably has a sloped surface leading to a recess trap for collecting byproducts generated during cooking upon the plate. The cooking plate can define a grilling plate, a griddle plate, or a reversible, combination grilling/griddle plate.