baber/WOPTO huggingface dataset:
Patent CA-2346856-A1 (CA)
Inventor: SENGUPTA SOMNATH
IPC: H01P1/201
Filed: 1999-10-15
Abstract: A voltage tunable dielectric varactor includes a substrate having a low dielectric constant and having generally planar surface, a tunable ferroelectric layer positioned on the generally planar surface of the substrate, and first and second electrodes positioned on a surface of the tunable ferroelectric layer opposite the generally planar surface of the substrate. The first and second electrodes are separated to form a gap therebetween. The varactor includes an input for receiving a radio frequency signal and an output for delivering the radio frequency signal. A bias voltage applied to the electrodes changes the capacitance of the varactor between the input and output thereof. Phase shifters and filters that include the varactor are also described.
Patent CA-2348522-A1 (CA)
Title: Method and apparatus for preparing a sample for analysis
Inventor: BRITS WILLEM HENDRIK
IPC: G01N33/20
Filed: 1999-10-29
Abstract: This invention relates to a method for assaying an ore sample to determine the concentration of gold and PGMs therein. The method comprises the steps of preparing an ore sample, combining the prepared ore sample with a lead-containing flux, inductively heating the combination (typically at a predetermined reference temperature profile) to form a fusion of slag and lead containing the gold and PGM's in the sample and separating the lead from the slag. The invention also covers a new flux for the process, the flux containing sodium hydroxide, a container for mixing the flux and an ore sample and an apparatus for separating molten lead from slag.
Patent CA-2348856-A1 (CA)
Title: Rotor control with negative collective in high speed auto-rotation
Inventor: CARTER JAY W JR
IPC: B64C27/57
Filed: 2001-05-25
Abstract: A method of operating a rotor aircraft at high speeds applies negative collective pitch to the rotor. The rotor aircraft has a wing, a thrust source and a rotor.  During horizontal flight, the pilot operates the thrust source to move the aircraft forward.  This supplies lift due to air flowing over the wing. By controlling tilt of the rotor, and without supplying power to the rotor, the pilot causes the rotor to auto-rotate due to the forward movement of the aircraft. The speed of rotation of the rotor is controlled by the degree of tilt of the rotor relative to the direction of flight. Once the aircraft speed is sufficiently high to cause reverse flow of air over the entire retreating blade of the rotor, the pilot reduces the collective pitch of the rotor to less than zero to reduce the flapping as desired.
Patent CA-2353303-A1 (CA)
Inventor: BROOKS DAVID
IPC: H04L29/08
Filed: 2001-07-18
Abstract: The present invention is directed to a secure web user profiling system and method. The system includes a browser helper object for gathering user information, an analysis engine for analysing the information gathered by the helper object and a secure user profile for maintaining information derived from the analysis.
Patent CA-2353975-A1 (CA)
Inventor: MILLER CARLA A
IPC: E04D1/26
Filed: 1999-12-27
Abstract: An asphalt-based roofing material (28) includes a substrate (12) coated with an asphalt coating (48). The asphalt coating (48) includes a lower region (54) that is positioned below the substrate (12) when the roofing material (28) is installed on a roof. A web (26) is fused to the lower region (54) of the asphalt coating (48). A portion of the web (26) and of the asphalt coating (48) have been intermingled by melting, thereby fusing the web (26) and the asphalt coating (48). A method of manufacturing the asphalt-based roofing material (28) includes the steps of coating a substrate (12) with an asphalt coating (48), applying a web (26) to the lower region (54) of the asphalt coating (48), and intermingling a portion of the web (26) and of the asphalt (48) coating by melting, thereby fusing the web (26) to the lower region (54) of the asphalt coating (48).
Patent CA-2354825-A1 (CA)
Inventor: SHI CAIJUN
IPC: C04B14/22
Filed: 2001-08-08
Abstract: A cement composition for use in acidic environment containing liquid alkali silicate, vitreous silicate setting agent, lime containing material and inert filler and building materials made therefrom as well as the method of making such building materials. The liquid alkali silicate may include sodium silicate or potassium silicate. The vitreous silicate setting agent may include soda-lime glass powder or coal fly ash. The lime containing material refers to the materials containing more than 20% lime and may include quicklime, hydrated lime, Portland cement, blast furnace slag or steel slag.      The inert fillers include ground quartz, ground ceramic, and/or clay.
Patent CA-2355659-A1 (CA)
Title: Electrostatic fluid accelerator
Inventor: KRICHTAFOVITCH IGOR A
IPC: H01J7/24
Filed: 2000-10-13
Abstract: An electrostatic fluid accelerator having a multiplicity of closely spaced corona electrodes (1).  The close spacing of such corona electrodes (1) is obtainable because such corona electrodes (1) are isolated from one another with exciting electrodes (2).  Either the exciting electrode (2) must be placed asymmetrically between adjacent corona electrodes (1) or an accelerating electrode must be employed. The accelerating electrode can be either an attracting (13) or a repelling electrode (19). Preferably, the voltage between the corona electrodes (1) and the exciting electrodes (2) is maintained between the corona onset voltage and the breakdown voltage with a flexible top high-voltage power supply. Optionally, however, the voltage between the corona electrodes (1) and the exciting electrodes (2) can be varied, even outside the range between the corona onset voltage and the breakdown voltage, in order to vary the flow of fluid. And, to achieve the greatest flow of fluid, multiple stages (28, 29 and 30) of the individual Electrostatic Fluid Accelerator are utilized with a collecting electrode (31 or 32) between successive stages (28, 29 and 30) in order to preclude substantially all ions and other electrically charged particles from passing to the next stage (28, 29 or 30), where they would tend to be repelled and thereby impair the movement of the fluid. Finally, constructing the exciting electrode (2) in the form of a plate that extends downstream with respect to the desired direction of fluid flow also assures that more ions and, consequently, more fluid particles flow downstream.
Patent CA-2356596-A1 (CA)
Title: Assist gas fuel injection mechanism for 2-cycle internal combustion engine
Inventor: MARUI YUJI
IPC: F02B75/02
Filed: 2001-09-04
Abstract: In an assist gas fuel injection mechanism for 2-cycle internal combustion engine comprising a chamber communicated to a combustion chamber through a communicating passage, a rotary valve provided in the communicating passage for controlling the opening and closing of the communicating passage, and a fuel injection device provided in the communicating passage between the rotary valve and the chamber, such that a highly compressed gas from the chamber and a fuel from the fuel injection device are mixed with each other and a concentrated mixture gas is supplied to the combustion chamber through the communicating passage, to minimize the clearance between a valve body and a housing of the rotary valve, to reduce leakage of an assist gas for injection, and contrive a reduction in the size of the assist gas fuel injection mechanism. An assist gas fuel injection mechanism for 2-cycle internal combustion engine characterized in that a protective layer is provided on the outside surface of the valve body of the rotary valve by using a material which is softer than the valve body of the rotary valve and the housing of the rotary valve and which is susceptible to plastic deformation.
Patent CA-2357138-A1 (CA)
Inventor: NAULT LOUIS-PHILIPPE
IPC: A01G23/08
Filed: 2001-09-11
Abstract: A land clearing tractor and process are provided for selectively clearing a land of brush and trees. The tractor has a traction unit for moving the tractor along a direction of travel. A supporting frame is connected to the traction unit. The frame has first and second sides, and a raised section between the first and second sides. A first shredder head is operatively connected to the first side of the frame and oriented parallel to the direction of travel. The first shredder head is movable between elevated and lowered positions for clearing brush and trees in a first band. A second shredder head is operatively connected to the second side of the frame. The second shredder head is parallel to the first shredder head and is spaced apart therefrom. The second shredder head is movable between elevated and lowered positions for clearing brush and trees in a second band spaced apart from the first band. Thereby, the tractor leaves between the first and second bands a residual band of brush and trees.
Patent CA-2357271-A1 (CA)
Inventor: PREVOST DOMINIC
IPC: B65G59/00
Filed: 2001-09-14
Abstract: The present invention relates to a gripping and transport clamp mounted at an end of a robotic arm. The clamp has a support member mounted at the end of the robotic arm and two lower pressing plates and one upper pressing plate mounted on the support member. A sensor is used to detect a reaction force being exerted on the first pressing plate upon displacement thereof. An actuator inserts the first lower pressing plate under the object to be gripped in response to a detection of the reaction force by the sensor. The second lower pressing plate under the first pressing plate moves between a retracted position and an extended position by means of an actuator mounted between the second lower pressing plate and the support member. It is also inserted under the object to be gripped. An actuator moves the upper pressing plate towards the object for gripping it between the plates. A controller receives detection signals from the sensor and operates the actuators.
Patent CA-2360611-A1 (CA)
Title: Transition metal-free initiator for the preparation of isobutylene-based polymers
Inventor: TSE CALVIN
IPC: C08F210/12
Filed: 2001-10-30
Abstract: There is disclosed a process for polymerizing a cationically polymerizable olefin comprising the step of polymerizing at least one cationically polymerizable olefin, preferably at subatmospheric pressure, in the presence of an initiator system which comprises a Lewis acid and an activator which is a proton source, such as an alcohol, a thiol, a carboxylic acid, a thiocarboxylic acid and the like. The initiator system does not contain a transition-metal compound.
Patent CA-2362127-A1 (CA)
Title: Wall repair clip, kit for repairing wallboard, and method thereof
Inventor: DIGATE JOHN T
IPC: E04G23/02
Filed: 2000-03-07
Abstract: Provided is a wallboard repair clip (2) which includes a patch wallboard receiving structure (4) for contacting inner and outer surfaces of a patch wallboard, an existing wallboard receiving member (10) and a securing structure (5).
Patent CA-2362456-A1 (CA)
Title: Apparatus for forming adhesive cartridges
Inventor: SUMNER TIMOTHY R
IPC: B29C48/06
Filed: 2000-02-03
Abstract: An apparatus for continuously forming thermoplastic adhesive cartridges. A  molten thermoplastic adhesive supply provides a supply of molten adhesive to a pump (12) downstream from the molten thermoplastic adhesive supply. The pump (12) then provides a molten thermoplastic adhesive melt stream which passes through a screen filter (20) downstream from the pump (12) to prevent the discharge of impurities in the molten thermoplastic adhesive melt stream from the pump (12). A temperature-controlled conduit downstream from the pump (12) then lowers the temperature of the molten plastic melt stream to closely above its softening point. A continuous molder (14) located downstream from the melt pump (12) receives the molten plastic melt stream from the melt pump (12) to form the thermoplastic adhesive cartridge continuously.
Patent CA-2366571-A1 (CA)
Title: Composite substrate and el device using the same
Inventor: NAGANO KATSUTO
IPC: H05B33/02
Filed: 2001-02-06
Abstract: The invention aims to provide a composite substrate which suppresses reaction of a substrate with a dielectric layer that can otherwise cause degradation of the dielectric layer and which can be sintered at high temperature while minimizing the occurrence of cracks in the dielectric layer, and an EL device using the composite substrate. The object is attained by a composite substrate in which an electrode and a dielectric layer are successively formed on an electrically insulating substrate, the substrate having a coefficient of thermal expansion of 10-20 ppm/K, and an EL device using the composite substrate.
Patent CA-2366689-A1 (CA)
Title: Bifunctional molecules for delivery of therapeutics
Inventor: FERKOL THOMAS W JR
IPC: A61P31/04
Filed: 2000-03-08
Abstract: A bifunctional molecule consisting of a therapeutic molecule and a ligand which specifically binds a transcytotic receptor can be transported specifically from the basolateral surface of epithelial cells to the apical surface. This approach provides the ability to deliver a therapeutic molecule directly to the apical surface of the epithelium, by targeting the transcytotic receptor with an appropriate ligand. Thus, the highest concentration of the therapeutic molecule will be at the apical surface, where it can have the greatest therapeutic effect.
Patent CA-2366915-A1 (CA)
Title: Biochemical compositions used in human treatment
Inventor: COCHRAN TIMOTHY
IPC: A23L1/30
Filed: 1999-02-25
Abstract: A composition for treatment of a human body comprises a combination of at least one hormone, at least one amino acid, at least one enzyme and/or vitamin, and at least one mineral. The relative proportions of the hormone, amino acid, enzyme and mineral in the combination are balanced with respect to each other so as to be present in effective amounts to substantially restore to optimal levels in the body the hormone, amino acid, enzyme and mineral. The hormone, amino acid, enzyme and mineral in the combination further operate synergistically to provide both nutrients and command/regulatory components to enable the body to effectively utilize the nutrients. The invention is also a method of forming a composition for the treatment of a human body.
Patent CA-2370948-A1 (CA)
Inventor: SHEPPARD PAUL O
IPC: C12N5/071
Filed: 2000-05-03
Abstract: L'invention concerne des facteurs de croissance polypeptidiques, des procédés de fabrication correspondants, des polynucléotides les codant, leurs anticorps et des procédés pour les utiliser. Ces polypeptides comprennent un segment d'acides aminés qui est identique pour au moins 70 % aux résidus 52-179 de SEQ ID NO:2 ou aux résidus 258-370 de SEQ ID NO:2. L'invention concerne aussi des multimères de ces polypeptides. Les polypeptides, les protéines multimères et les polynucléotides peuvent être utilisés dans l'étude et la régulation du développement des tissus et des cellules, en tant que composants du milieu de culture des cellules et comme agents diagnostiques.
Patent CA-2374885-A1 (CA)
Title: Transesterification process
Inventor: GRIECO WILLIAM JOSEPH
IPC: C07C29/128
Filed: 2002-03-06
Abstract: An improved transesterification process is disclosed for forming certain (meth)acrylates by the transesterification of an alkyl (meth)acrylate with a hydroxyl alkyl imidazolidin-2-one using a transesterification catalyst in the presence of a polymerization inhibitor.
Patent CA-2376417-A1 (CA)
Inventor: ROUSE MATHEW D
IPC: G06K19/02
Filed: 2002-03-14
Abstract: The invention is a method of packaging an electronic tag. The method includes heating the electronic tag to remove contaminants from an internal volume. The internal volume is filled with a potting material and is hermetically sealed within an outer shell. The invention is a method of positioning an electronic tag in a tubular member. The method includes positioning an electronic tag in a slot formed in an inner wall of the tubular member. The slot is filled with a potting material that adhesively bonds the electronic tag to the slot.   The invention is an electronic tag apparatus. The apparatus comprises a slot formed at a selected azimuthal location in an inner wall of a tubular member.  An electronic tag is disposed in the slot. A potting material is disposed in the slot, and the potting material forms a barrier between the electronic tag and the inner wall of the tubular member and adhesively bonds the electronic tag to the slot.
Patent CA-2376833-A1 (CA)
Title: Oxidatively stable, long-chain ethyl ester emollients
Inventor: KORITALA SAMBASIVARAO
IPC: A61K8/00
Filed: 2000-06-09
Abstract: An emollient composition is described comprising a long-chain ethyl ester in combination with an oxidation stabilizing systems comprising at least one tocopherol and at least one supplemental additive selected from the group consisting of kojic acid, malic acid, and ascorbic acid. The long-chain ethyl ester may comprise an ethyl ester of a natural oil. The long-chain ethyl ester may have a percent methylene interrupted unsaturation of less than 20%. The emollient composition may have the supplemental additive present in an amount of from 0.01 to 2% or more by weight and the tocopherol is present in an amount of from 0.01 to 5% by weight. The emollient composition preferably has the long-chain ethyl ester selected from the class consisting of ethyl ester of macadamia oil, ethyl ester of hybrid sunflower, ethyl ester of babassu oil and meadowfoam having a percentage methylene interrupted unsaturation of less than 5%.
Patent CA-2379414-A1 (CA)
Title: Vascular filter having articulation region and methods of use in the ascending aorta
Inventor: HOPKINS L N
IPC: A61M25/01
Filed: 2000-07-28
Abstract: Apparatus (20) is provided for use in filtering emboli from a vessel (17) su ch as the ascending aorta, wherein a vascular device comprises a support hoop (24) having an articulation region (26) connected near a distal end (23) of an elongated member, a blood permeable sac (28) affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac, a guide wire  (22), and a delivery sheath. The articulation region comprises a reduced thickness region of the support hoop that prevents kinks from forming in the  support hoop when the apparatus is contracted to its delivery state, and curved regions that close the mouth of the sac to prevent material escaping from the sac when the apparatus is collapsed for removal.
Patent CA-2381274-A1 (CA)
Inventor: MCMAHON PATRICK JAMES
IPC: E04G21/22
Filed: 2000-08-02
Abstract: The present invention is directed to a system (40) and method for laying masonry blocks (41) in multiple block units (43). The system (40) comprises a mortar injec-tion device (44), a block hoist apparatus (46) and a mortar applying apparatus (48). Chutes (80) inject mortar into gaps (73) to create a mortar joint between each block (41). The tamper (82) comprises a vibratory roller (88) and/or a series of vibrating pistons (89) and settles the mortar in the gaps (73).      The hoist apparatus (46) includes a mechanical hoist (100), a transmission member (102). At least a portion of each of major and minor gripping members (124, 125, 112, 113) are insertable into different blocks (41) to retain the blocks (41) in alignment for raising and lowering of the multiple block unit (43). The mortar applying device (48) includes an appli-cator (300), a housing, a housing guide (312) and means for controlling the dispensing of mortar onto the top surface of a row of blocks (41), while substantially limiting application of mortar into the inner cavities of the blocks.
Patent CA-2384567-A1 (CA)
Title: High temperature super-conducting rotor coil support with tension rods and bolts and assembly method
Inventor: ALEXANDER JAMES PELLEGRINO
IPC: H02K3/52
Filed: 2002-05-02
Abstract: A rotor is disclosed for a synchronous machine comprising: a rotor core; a super-conducting coil winding extending around at least a portion of the rotor core, said coil winding having a side section adjacent a side of the rotor core; at least one tension rod extending through a conduit in said rotor core; at least one tension bolt extending between an end of the tension rod and abutting the side section of the coil winding; and a channel housing attached to the tension bolt and the coil winding.
Patent CA-2386301-A1 (CA)
Inventor: CLAREY NICHOLAS HOLDER
IPC: G06F9/44
Filed: 2002-05-14
Abstract: Disclosed is a data processing device comprising a microprocessor, a display screen and a memory in which is stored a browser program executable by the microprocessor to request data in a known data format from a server program, to interpret and render the data and generate therefrom signals suitable for display in the display screen, wherein a graphic user interface is stored in the memory in the known data format, together with a local server program, which is executable by the microprocessor to transmit data, including the graphic user interface, in the known data format from the memory to the browser program in response to requests from the browser program.
Patent CA-2394236-A1 (CA)
Title: Adamantane derivatives
Inventor: MORTIMORE MICHAEL
IPC: A61K31/197
Filed: 2000-12-01
Abstract: The invention provides adamantane derivatives of formula (I), a process for their preparation, pharmaceutical compositions containing them, a process for preparing the pharmaceutical compositions, and their use in therapy.
Patent CA-2395315-A1 (CA)
Inventor: HOCHMAIR INGEBORG
IPC: H04R25/02
Filed: 2001-01-31
Abstract: A cochlear implant system has a signal processor (50) that fits in the ear canal of a user.  The signal processor (50) processes an acoustic signal present in the ear of the user to produce a representative radio signal. A power transmitter transmits an electrical power signal through the skin of the user. A cochlear implant receives the radio signal and the electrical power signal and produces for the auditory nerve of the user an electrical stimulation signal representative of the acoustic signal.
Patent CA-2396768-A1 (CA)
Inventor: STOUTAMIRE DAVID P
IPC: G06F12/00
Filed: 2001-01-02
Abstract: L'invention concerne des procédés et des appareils permettant de créer un mécanisme qui réorganise plusieurs objets en mémoire. Le procédé consiste à déterminer une fréquence d'accès en mémoire d'un ou de plusieurs champs associés aux divers objets les uns par rapport aux autres lors de l'exécution d'une application informatique, puis à générer un mécanisme de réorganisation d'objets dans la mémoire conformément à la fréquence déterminée d'accès en mémoire de données référencées par les champs associés aux divers objets les uns par rapport aux autres.
Patent CA-2397913-A1 (CA)
Title: Using one device to configure and emulate web site content to be displayed on another device
Inventor: ABKOWITZ DAVID
IPC: G06F17/30
Filed: 2001-02-22
Abstract: A method and apparatus are disclosed for using one device to configure information to be displayed on another device with different display capabilities. Techniques are described for receiving input on a management device, which specifies information for display on a target device. The management device generates an image of how the specified information will appear when displayed on the target device. Additional input may be received on the management device that changes the information to be displayed or the format of the information. The management device modifies the image to reflect such changes. The management device may display an image of the target device that includes the display of the selected information. The management device may also emulate the target device, thereby permitting a user to simulate physical use of the target device by manipulating the image of the target device on the management device.