baber/WOPTO huggingface dataset:
Patent CA-2636859-A1 (CA)
Title: Method of inhibiting corrosion on ferrous metal surfaces in contact with nitrogen fertilizer solutions
Inventor: BUREMAN PHILLIP E
IPC: C05G3/00
Filed: 2008-07-07
Abstract: A method of using trace amounts of certain compounds to reduce or inhibit corrosion on metal surfaces exposed to corrosive materials is disclosed. The compounds include hydroxlamines, acrylate polymers or copolymers, certain organic acids, tannic acid, carbohydrazide and its derivates and salts, and combinations of these compounds. The metal surfaces may include any ferrous metal piping or equipment surfaces, such as that used during storage, transport, and other processing of such materials. A corrosion-inhibited UAN  solution having about 20 to about 50 percent by weight water and from less than 10 to about 1,000 ppm of one or more of the described corrosion inhibitors, and a pH from about 7 to about 8 is also disclosed.
Patent CA-2637433-A1 (CA)
Inventor: KITCHEN BARRY JAMES
IPC: C13B50/00
Filed: 2007-02-06
Abstract: There is provided a method of preparing particles of a predetermined size range from material the method comprising: (A) introducing the material into a circuit comprising: (a) a mill for milling the material into particles; (b) a gas circulator for circulating a stream of gas around the circuit in which the material and the particles are entrained; and (c) a separator for separating particles of the pre-determined size range from particles greater than the pre-determined size range; (B) circulating the material to the mill; (C) milling the material to produce particles; (D) circulating the particles to the separator; (E) separating the particles into first particles having the predetermined size range and second particles having a size greater than the pre-determined size range; (F) removing the first particles from the circuit;  and (G) circulating the second particles to the mill for further milling.
Patent CA-2640122-A1 (CA)
Inventor: WEDDERBURN BRUCE
IPC: C22B3/44
Filed: 2007-01-31
Abstract: A process for the recovery of base metals from an oxide ore, comprising the steps of: e) forming at least one heap (40) of the oxide ore containing the base metals to be recovered; f) irrigating the at least one heap (40) of oxide ore with a leach solution (42) comprising sulphuric acid; g) collecting resulting pregnant leach solution (44,50) from the irrigated heap (40); and treating the pregnant leach solution (44,50) with a reducing gas stream to create a treated pregnant leach solution for recovery of required base metals.  The process is applicable to treatment of laterite ores and the conversion of ferric ions to ferrous ions, with regeneration of sulphuric acid in the process, has benefits in terms of enhanced process efficiency and reduced operating costs.
Patent CA-2641603-A1 (CA)
Title: Element de toiture thermoelectrique thermiquement isolant
Inventor: NIJBOER CHRISTIAAN ALOYSIUS JO
IPC: H01L35/00
Filed: 2007-02-08
Abstract: La présente invention concerne un élément de toiture thermiquement isolant, comprenant une pluralité d'éléments thermoélectriques, comprenant chacun un premier conducteur (1), constitué d'un premier matériau conducteur, et un second conducteur (2), constitué d'un second matériau conducteur, les deux conducteurs s'étendant principalement entre les côtés plats de l'élément (12, 13) et étant électriquement interconnectés par au moins une jonction (3, 4). Le premier matériau conducteur peut être un premier polymère conducteur et le second matériau conducteur un second polymère conducteur. Un ou plusieurs corps de soutien (6), présentant des propriétés d'isolation thermique et électrique, supportent les premier et/ou second conducteurs. Les corps de soutien s'étendent principalement dans la longueur ou la largeur de l'élément de toiture et peuvent être constitués d'un polymère isolant.
Patent CA-2643491-A1 (CA)
Inventor: BUREAU CHRISTOPHE
IPC: C09D5/44
Filed: 2007-02-28
Abstract: The invention relates to a method for grafting an organic film onto an electically conductive or semiconductive surface by electro-reduction of a solution, wherein the solution comprises one diazonium salt and one monomer bearing at least one chain polymerizable functional group. During the electrolyzing process, at least one protocole consisting of an electrical polarization of the surface by applying a variable potential over at least a range of values which are more cathodic that the reduction or peak potential of all diazonium salts in said solution is applied. The invention also relates to an electrically conducting or semiconducting surface obtained by implementing this method. The invention further relates to electrolytic compositions.
Patent CA-2646253-A1 (CA)
Title: Method for cloning and expression of nrui restriction endonuclease
Inventor: ZHU ZHENYU
IPC: C12N1/21
Filed: 2007-03-30
Abstract: Recombinant DNA encoding NruI- and Sbol-like restriction endonucleases and methylases and their amino acid sequences are provided as well as methods for expressing the enzymes in transformed host cells and purifying the enzymes.
Patent CA-2646867-A1 (CA)
IPC: A61K8/41
Filed: 2008-12-16
Abstract: The present invention relates to a composition comprising as coupler compound 3-amino-2,6-dimethylphenol and/or its inorganic or organic salt; as well as a method of dyeing keratin fibers using the above dye composition.
Patent CA-2654081-A1 (CA)
Inventor: HOFFMAN ALEX L
IPC: B67D7/54
Filed: 2009-02-13
Abstract: A fluid transfer system includes a transfer device coupled to a dry break coupler. The transfer device includes a valve assembly moveable between an open and a closed position. The valve assembly includes a main valve and a pilot valve. An actuator controls both the main valve and the pilot valve. A cam plate interconnects the actuator and the valve assembly. The cam plate provides a quick acting shutoff to quickly move the valve assembly to the closed position. A pivotal and rotatable connector couples the transfer device to the dry break coupler. A lock is integrated with the actuator to lock the valve assembly in the closed position.
Patent CA-2655566-A1 (CA)
Title: System, method, and device for providing health information
Inventor: LEONG-FERN ANDREW
IPC: G16H20/70
Filed: 2007-06-27
Abstract: Published without an Abstract
Patent CA-2656048-A1 (CA)
Title: Light beam generation
Inventor: GLUCKSTAD JESPER
IPC: G02B27/52
Filed: 2007-06-18
Abstract: The invention relates to a method and a system for synthesizing a set of controllable light beams by provision of a system for synthesizing a set of light beams, comprising a spatially modulated light source for generation of electromagnetic radiation with a set of replicas of a predetermined symbol, s, positioned at respective desired positions (xs, ys) in an object plane o(x, y) intersecting, preferably perpendicular to, the direction of propagation of the electromagnetic radiation, and having spatial amplitudes a(x-xs, y-ys), spatial phases .phi.(x-xs, y-ys)> and spatial polarisation vectors p(x-xs, y-ys), a Fourier transforming lens for Fourier transforming the electromagnetic radiation, a first spatial light modulator for phase shifting the Fourier transformed electromagnetic radiation with the phase -.PHI.(u, v) of S*, S* is the complex conjugate of the Fourier transformed symbol s, a Fourier transforming lens for Inverse Fourier transforming the spatially modulated radiation, whereby a set of light beams are formed propagating through the inverse Fourier plane (x', y') at desired positions (x's, y's), and a controller for controlling the position of a replica of the symbol, s, for movement of the corresponding light beam.
Patent CA-2656860-A1 (CA)
Title: Multiple path length transmittance measuring device
Inventor: GLOVER JAMES ANDREW
IPC: G01N21/59
Filed: 2007-07-06
Abstract: A device to measure the amount of light able to transmit through a test liquid sample. A single lamp is used to illuminate a liquid sample cell containing the test water. A light detector is fixed relative to the lamp and is used to detect the amount of light from the lamp able to transmit through the liquid sample cell. The liquid sample cell is shaped in such a way as to provide at least two sets of opposed side walls that are able to transmit the light emitted from the lamp, where each set of opposed side walls defines a different path length through the liquid sample in the liquid sample cell. A rotation mechanism is used to provide relative rotation between the liquid sample cell and the lamp/light detector assembly. A microprocessor connected to the light detector calculates the light transmitted through at least two different path lengths through the liquid sample. Using these calculated transmittances the microprocessor then calculates the overall transmittance of the test water.
Patent CA-2656897-A1 (CA)
Inventor: SASHIDA TOSHIIKU
IPC: H02N1/00
Filed: 2007-06-07
Abstract: Provided is an electrostatic motor, in which a disc-shaped stator (S) and a disc-shaped rotor (R) are opposed to each other in a vacuum container (11). In the stator (S), first electrodes (34A) and second electrodes (34B), which are attached to electrode supports (31, 32), respectively, and which are electrically insulated from each other by an insulator (33), are arranged alternately in the circumferential direction. In the rotor (R), first electrodes (44A) and second electrodes (44B), which are attached to electrode supports (41, 42), respectively, and which are electrically insulated from each other by an insulator (43), are arranged alternately in the circumferential direction. The first electrodes (34A) and the second electrodes (34B) on the side of the stator (S) are arranged at a spacing of two or more rows at a predetermined distance from the center of a rotating shaft (1). The first electrodes (44A) and the second electrodes (44B) on the side of the rotor (R) are arranged at a predetermined distance from the center of the rotating shaft (1) and at an intermediate position between the rows of the first electrodes (34A) and the second electrodes (34B) on the side of the stator (S). As a result, the electrostatic motor can establish a high electric field in the vacuum so that it can rotationally drive with a sufficient driving force.
Patent CA-2658201-A1 (CA)
Title: A method and a device for directional control of a rock drilling machine
Inventor: KNUTSEN KJELL
IPC: E21B7/08
Filed: 2007-07-12
Abstract: A method for the directional control of a rock-drilling ma-chine, the drilling unit (1) of the rock-drilling machine, which is located in a borehole (2), comprising at least a pi-lot drill bit (6) or an underreamer drill bit (8), the drill bit(s) (6, 8) being driven by an electric motor (10) via a gearbox (12), and the drill bit(s) (6, 8) being moved into the rock (3) by means of a feeding rod (4) extending from a feeding machine at the outside the borehole (2), and the drill bit(s) (6, 8), gearbox (12) and motor (10) being pivoted in a controlled manner about a steering axis (18) which is approximately perpendicular to the center axis (26) of the feeding rod (4).
Patent CA-2659176-A1 (CA)
Title: Detachable needle syringe having reduced dead space
Inventor: SCHILLER ERIC
IPC: A61M5/315
Filed: 2007-08-02
Abstract: A syringe and detachable needle assembly having reduced dead space features includes an elongate syringe barrel having open distal end including a collar and a distally facing annular surface projecting inwardly from the collar. A needle assembly includes a hub having a proximally facing annular surface and an outwardly projecting annular sealing ring positioned distally from the surface. The needle assembly also includes a cannula having a lumen therethrough connected to the distal end of the hub. Structure is provided for engaging the hub to the barrel resulting in the annular surface of the barrel contacting the annular surface of the hub to form a primary seal between said barrel and said hub and the annular sealing ring contacting the collar to form a secondary seal between the barrel and the hub.
Patent CA-2659801-A1 (CA)
Inventor: UDUPA SIVAPRASAD
IPC: H04L29/06
Filed: 2007-08-02
Abstract: Systems and methods are disclosed for an appliance to authenticate access of a client to a protected directory on a server via a connection, such as a secure SSL connection, established by the appliance. A method comprises the steps of: receiving, by an appliance, a first request from a client on a first network to access a server on a second network, the appliance providing the client a virtual private network connection from the first network to the second network; determining, by the appliance, the first request comprises access to a protected directory of the server; associating, by the appliance, an authentication policy with the protected directory, the authentication policy specifying an action to authenticate the client's access to the protected directory; and transmitting, by the appliance in response to the authentication policy, a second request to the client for an authentication certificate. Corresponding systems are also disclosed.
Patent CA-2664086-A1 (CA)
Title: Magnetic bearing
Inventor: FIELD ROBERT
IPC: H02K9/22
Filed: 2007-06-14
Abstract: Certain exemplary embodiments comprise a system, which can comprise a radial magnetic bearing static portion. The radial magnetic bearing static portion can comprise a plurality of electromagnets. The radial magnetic bearing static portion can comprise a plurality of pulse width modulated amplifiers, each of which can be adapted to provide electrical energy.to a corresponding electromagnet of the plurality of electromagnets.
Patent CA-2664243-A1 (CA)
Inventor: ROUTH JULIAN
IPC: C25B1/26
Filed: 2007-09-24
Abstract: An electrolytic cell comprising an electrolysis vessel (2) for receiving a liquid electrolyte (4) that fills the vessel (2) to a predetermined level, electrodes (3) for passing an electric current through the electrolyte (4), a vent (5) for allowing gases produced by the electrolytic process to leave the vessel (2) and an air inlet means (6) located substantially adjacent to the predetermined level (7) for directing air into the vessel (2) at a predetermined rate.
Patent CA-2665759-A1 (CA)
Title: Data transmission system and method
Inventor: LIU YONGHUA
IPC: H04L12/28
Filed: 2009-05-11
Abstract: A system and method are provided for transmission of data bits across a data bus. To reduce power usage, noise, or some combination of the two, the data bus utilizes differential transmission using a three level signal in which a reference signal signifies no difference between input bits. Before the signals are transmitted an analysis is made to choose which one of a set of predetermined polarity reversal combinations is advantageous to encode the data bits. The data bits are so encoded and a formatting value F associated with the chosen polarity reversal is differentially transmitted with the encoded bits over the data bus. The three level differential signal is received at the far end of the bus, the encoded bits are recovered and decoded with use of F. The system and method achieves up to N bits transmitted per N data lines.
Patent CA-2667427-A1 (CA)
Title: Ductile structural foams
Inventor: BOBB LARISSA
IPC: C08L63/00
Filed: 2007-08-16
Abstract: A composition comprising at least one epoxy resin, at least one room temperature solid phenol compound, at least one polyetheramine, at least one blowing agent, at least one hardener, at least one filler is suitable for producing structural foams which are notable for ductile behaviour in the event of compressive or flexural stress, i.e. an elastic deformation is observed on compressive stress or in the three-point bending test.
Patent CA-2672543-A1 (CA)
Inventor: KAMITANI HIROYUKI
IPC: F04B39/00
Filed: 2007-09-28
Abstract: An integrated electric compressor which is improved in reliability. Bus bar connection is employed in each electrical connection between a power board (16) and the power supply side and between the power board (16) and the motor side, and welding is employed for bonding the bus bar to a capacitor (13) and a reactor (14), and for bonding the board side terminal of the bus bar to the PN terminals (20a, 20b), the UVW terminals (25a, 25b, 25c) and the housing side terminals (28a, 28b, 28c). The terminals can be mutually bonded with stabilized quality by using resistance welding. Furthermore, since a planar bonding plate is provided on one end side of the housing side terminals (28a, 28b, 28c) and the UVW terminals (25a, 25b, 25c) are welded thereto, reliable mutual bonding of terminals can be attained.
Patent CA-2673210-A1 (CA)
Title: Abrasion resistant fire blocking fabric
Inventor: HALL WALTER RANDALL III
IPC: D04H13/00
Filed: 2007-12-19
Abstract: An abrasion resistant nonwoven fabric for fire blocking an article such as a mattress, comprising a layer of fibers comprising a mixture of crimped, heat-resistant organic fibers and thermoplastic binder fibers compressed on a spunbonded thermoplastic nonwoven sheet; the layer of fibers being held in a compressed state and to the spunbonded sheet solely by the adhesion of the thermoplastic binder fibers to the heat-resistant organic fibers and to the spunbonded sheet; and wherein when the fabric is exposed to heat or flame, the fabric increases in thickness by at least one and one half times.
Patent CA-2677607-A1 (CA)
Title: Electrosurgical apparatus with high speed energy recovery
Inventor: ORSZULAK JAMES H
IPC: A61B18/12
Filed: 2009-09-04
Abstract: A circuit for controlling the discharging of stored energy in an electrosurgical generator includes a pulse modulator which controls an output of a power supply. At least one comparator is configured to provide an error signal to the pulse modulator based on a comparison between an output signal generated by the power supply and a feedback signal generated in response to the application of energy to tissue. A discharge circuit is configured to control the discharge of the output of the power supply to an inductive load disposed in parallel with the output of the power supply based on the comparison between the output signal and the feedback signal. The discharge circuit provides a rapid response and time rate control of the delivered electrosurgical energy by controlling the power supply and delivered RF energy in real time, based on a feedback signal generated in response to the application of energy to tissue.
Patent CA-2679454-A1 (CA)
Title: Bowel management system
Inventor: SCHNEIDER JAMES G
IPC: A61M25/10
Filed: 2003-01-17
Abstract: A bowel management system includes a waste collection catheter having at least two distinct sections. The first section is patient proximal when disposed in the patient's rectum and has durometer hardness in the range of about 50A to about 90A. The second catheter section is connected to the first section and has durometer hardness in the range of about 5A to about 49A. A selectively collapsible, substantially spherical retention balloon is attached coaxially and exterior of the first catheter section such that the proximal-most end of the retention balloon is coincident to the proximal-most end of the first section of the waste collection catheter, the substantially spherical retention balloon having an inflated size so as to be sufficiently large enough to retain the patient proximal end of the catheter in the patient's rectum without being so large as to trigger a defecatory response in the patient.
Patent CA-2680556-A1 (CA)
Title: Biomarkers of prostate cancer and uses thereof
Inventor: ZHANG YILAN
IPC: G01N33/53
Filed: 2008-03-12
Abstract: The present invention includes biomolecules and use of these biomolecules for differential diagnosis of prostate cancer and/or non-malignant disease of the prostate. In an embodiment, the present invention provides methods for detecting biomolecules within a biological sample as well as a database comprising of mass profiles of biomolecules specific for healthy subjects, subjects having a non-malignant disease of the prostate and subjects having prostate cancer. The invention further includes kits for differential diagnosis of prostate cancer and/or non-malignant disease of the prostate in a biological sample.
Patent CA-2681224-A1 (CA)
Inventor: WHALEY KENNON
IPC: C23C22/05
Filed: 2009-09-30
Abstract: A process is described in which non-structural galvanized steel studs are sequentially chemically treated with a permanganate coating to improve oxidation resistance, followed by treatment with a silicate coating sealant, optionally with zinc surface activation using an acid treatment.
Patent CA-2685649-A1 (CA)
Title: Shutter
Inventor: MORRIS RICHARD P
IPC: E06B9/02
Filed: 2009-11-13
Abstract: A shutter used, for example, as a sunshade has blades that are pivotally coupled to frame members of the shutter by respective pivot shafts that are split longitudinally into upper and lower halves. The pivot shaft halves can be adjusted radially with respect to one another to take up free movement that might otherwise allow the blades to vibrate when the shutter is in use.
Patent CA-2689576-A1 (CA)
Title: Panneau de decoration lamine et procede de fabrication
Inventor: BUHLMANN CARSTEN
IPC: B44C5/04
Filed: 2008-06-04
Abstract: L'invention concerne un panneau de décoration laminé comportant un noyau en matériau de fibres ou de particules; une couche intermédiaire contenant de la résine, située sur au moins un côté du noyau; une couche de décoration non-imprégnée de résine, présentant une représentation graphique de la surface d'un matériau imité; et une couche de couverture transparente dans laquelle la représentation en relief de la structure de surface du matériau imité est imprégnée, la couche intermédiaire étant composée d'une colle pouvant être durcie sous l'effet de la pression et/ou de la chaleur, appliquée sous forme liquide sur le noyau.
Patent CA-2691472-A1 (CA)
Inventor: BAETSEN JOHANN
IPC: H05B1/02
Filed: 2008-06-25
Abstract: A duct heater control module for controlling an electric duct heater in an air duct. Current controllers present the difficulty that they must be wired separately, increasing the cost of production and maintenance. The present device solves this problem by introducing a micro-controller to interconnect several components withm the electrical box of a duct heater control module. The duct heater control module includes a microcontroller for receiving an air flow signal from an air flow sensor for controlling the electric duct heater in response thereto. The microcontroller controls short cycling of the current switching relays, determines the nature of the input signal from a thermostat, and drives a status display.
Patent CA-2691663-A1 (CA)
Title: Female posterior wall prosthesis
Inventor: MAURETTE NEIL L
IPC: A61H21/00
Filed: 2010-02-05
Abstract: A prosthesis comprising a pancake-shaped body (100), a neck (110) and a flared flattened handle (120) sized and shaped to shield the posterior vaginal wall (610) from frictional contact during coitus.  This self-retaining prosthesis comprises a means to retain the pancake-shaped body (100) within the vagina and a means to prevent the flared flattened handle (120) from entering the vagina during insertion of the prosthesis or during coitus. This prosthesis decreases the volume of the vagina and decreases the area of the vaginal opening providing a non-surgical, cost-effective solution to tightening a woman's vagina. The posterior vaginal wall prosthesis enables women who have larger vaginas to use tampons.
Patent CA-2693683-A1 (CA)
Inventor: MOORE BRUCE YIN
IPC: A41D1/089
Filed: 2008-07-28
Abstract: An article of apparel, which may be a pair of water shorts, includes a first textile and a second textile. The first textile forms a majority of an exterior surface and an opposite interior surface of the apparel, and the first textile exhibits at least thirty percent stretch prior to tensile failure. The second textile is located around a waistband portion of the apparel, and the second textile exhibits less than ten percent stretch prior to tensile failure.