baber/WOPTO huggingface dataset:
Patent CA-2365134-A1 (CA)
Inventor: DI TULLIO ALBERTO C
IPC: G03B15/06
Filed: 2001-12-17
Abstract: When photographing products of a highly reflective nature, it is difficult to eliminate unwanted reflections. It is also common to diffuse light falling on it, through a translucent material in an attempt to soften light and shadows. This invention allows the photographer to set up the product, i.e.: a chrome teakettle or toaster, inside a conical tent with one opening located along the side for the camera lens, minimizing unwanted reflections, highlights and shadows.   The only solid support needed in the structure is in the base of the cone. The support is tubular and rigid in form, though, still light and flexible for ease of handling and connected at the two ends to form a hoop with the use of brass garden hose couplings permanently placed. The material used for the support may be anything able to meet the criteria stated. The support hoop is then fed through a 2 inch diameter casing stitched at the base of the cone.  Once in the base of the cone and fastened together with the couplings, a working diameter (approximately 50 inch diameter) is formed.   The conical shape allows for the lack of defined edges, i.e.: square, rectangular or cylindrical shapes, which normally cast shadows on the product. The cone has one seem stitched approximately halfway down the opening from the point. The remainder of the opening is closed with white Velcro so as to blend in with colour of the fabric used and to fasten snugly around the camera lens. The conical shape is then suspended by the use of a suspension strap stitched to the point of the cone with a metal D-ring at the other end. When the strap is fed through this D-ring, a loop is formed to enable the strap to hook to a support arm, usually connected to a support device such as a light stand or tripod. The material used must be a translucent white fabric as white is typically used and easiest to work with.
Patent CA-2366376-A1 (CA)
Title: Molding method for manufacturing thin thermoplastic lenses
Inventor: KINGSBURY JEFFREY M
IPC: B29D11/00
Filed: 2000-03-08
Abstract: Disclosed are novel molding methods for manufacturing thin thermoplastic lenses and, in particular, minus ophthalmic lenses that have thickness of about 1 mm or less at the thinnest point thereof. The molding mehtods disclosed provide for lenses which lack any abrasion or polishing artifacts on the surface and also lack any negative fining marks below the nominal surfac e.
Patent CA-2366587-A1 (CA)
Inventor: NAKADA KAZUYA
IPC: C09D5/08
Filed: 1999-10-14
Abstract: A hydrophilizing composition which contains no chromium and imparts excellen t corrosion resistance and long-lasting hydrophilicity to a heat exchanger mad e of aluminum. The hydrophilizing agent for metallic materials comprises: (A) a hydrophilic polymer having at least one nonionic functional group selected from the group consisting of primary amide, secondary amide, tertiary amide,  hydroxy, and polyoxyalkylene groups; (B) a hydrophilic polymer having at lea st one ionic functional group selected from the group consisting of sulfo, phosphonate, carboxyl, primary amino, secondary amino, tertiary amino, and quaternary ammonium groups; (C) a vanadium compound; and (D) a compound havi ng at least one element selected from the group consisting of Zr, Ti, and Si.</ SDOAB>
Patent CA-2366985-A1 (CA)
Title: Temperature compensated long period optical fiber grating filter
Inventor: JANG JOO-NYUNG
IPC: G02B6/34
Filed: 2000-03-13
Abstract: Disclosed is a temperature compensated long period optical fiber grating filter. The long period optical fiber grating filter includes a core formed with a long period grating, a cladding surrounding the core, a coating coated over a portion of the cladding not surrounding the long period grating, and a re-coating coated over a portion of the cladding surrounding the long period and made of a material exhibiting an increase in refractive index in accordance with an increase in temperature, the recoating serving to allow a coupling wavelength shift caused by the increase in refractive index to be carried out in a direction opposite to that of a coupling wavelength shift caused by a refractive index difference between the core and the cladding. In accordance with this long period optical fiber grating filter, a temperature compensation can be more easily achieved without any inconvenience caused by an adjustment of refractive index in the filter or an addition of a material for avoiding a variation in refractive index depending on temperature.
Patent CA-2367128-A1 (CA)
Title: Method for the cold-starting of a fuel cell battery, and associated fuel cell battery
Inventor: LUFT GUNTER
IPC: H01M8/04014
Filed: 2000-03-09
Abstract: Fuel cell battery with heating and improved cold start performance. The invention also relates to a method for cold starting such a battery. The heating, e.g. a reformer, is started. The operating temperature of said heating is used in order to heat up the fuel cell stack.
Patent CA-2367131-A1 (CA)
Title: Methods for fine powder formation
Inventor: STEINER SOLOMON S
IPC: F26B5/06
Filed: 2000-04-05
Abstract: Improved methods for forming fine particles of a material have been developed, wherein the method steps include dissolving the material in a solvent to form a dilute solution, immobilizing the dilution solution, and then removing the solvent to yield particles of the material. Methods of immobilizing the dilute solution include freezing, gelation, and chelation. In a preferred embodiment, the immobilized solvent is removed by lyophilization, i.e. reducing the ambient pressure while avoiding application of sufficient heat to power a phase transition. Essentially any material and solvent for the material can be used in the methods described herein. Proteins and peptides in an aqueous solvent are the preferred systems.
Patent CA-2368201-A1 (CA)
Inventor: DEANER MICHAEL J
IPC: B29C48/11
Filed: 2000-01-19
Abstract: An improved composite structural member comprising a complex profile structural member, made of a composite comprising a polypropylene polymer and a wood fiber. The material is useful in conventional construction applications. The complex profile, in the form of an extruded thermoplastic composite member can be used in residential and commercial structures as described. Preferably, the structural member is used in the manufacture of the fenestration components such as windows and doors. Such linear members are designed with specifically configured cross sectional shapes to form structural elements in the fenestration units. Structural elements must possess sufficient strength, thermal stability and weatherability to permit the manufacture of a structurally sound window unit that can be easily installed into a rough opening but can maintain its attractive appearance and structural integrity over the life of the window unit often twenty years or more. The structural member comprises a hollow complex cross-section with at least one structural web or one fastener web formed within the component. The exterior of the extruded component has a visible capstock layer and is shaped and adapted for installation in rough openings. The exterior also contains shape and components capable of supporting the elements of the fenestration unit such as a window, sash or movable door unit. The improved polypropylene structural members have unique advantages and can be assembled in thermoplastic weld processes.
Patent CA-2370472-A1 (CA)
Title: Equipment for continuous, horizontal casting of metal
Inventor: MAELAND GEIR
IPC: B22D11/04
Filed: 2000-06-26
Abstract: Equipment for continuous, horizontal casting of metal, in particular aluminium. The equipment including an insulated reservoir or pool (2), which is designed to contain liquid metal, and a mould (3), which can be removed from the pool (2), with an insulating plate (19) with holes (25, 26) which communicate with the mould, the mould (3) including a preferably circular cavity (17) with a wall (12, 13) of permeable material for the supply of oil and at least one annular slit or nozzles (16) arranged along the circumference of the cavity for the direct supply of coolant. In addition to the oil gas, is supplied through the permeable material (12, 13) and annuli (20) are arranged between the permeable wall material and the mould housing (8) to distribute the gas/oil to the wall material. The annuli (20) is divided into sectors using plugs or similar restrictions (21) and are supplied with oil/gas via separate supply channels (10, 11) for each sector, thus making it possible to differentiate the supply of oil/gas around the circumference.
Patent CA-2372910-A1 (CA)
Title: Integrated multi-wavelength and wideband lasers
Inventor: SARGENT EDWARD H
IPC: H01S5/40
Filed: 2002-02-21
Abstract: A laser has a spatially varying absorption spectrum formed in a monolithic InGaAsP structure whose quantum well active structure has modified effective bandgap properties. The spatially varying emission spectrum allows emission at multiple wavelengths or emission in a broad band. The effective bandgap properties can be modified by rapid thermal annealing to cause the diffusion of defects from one or two InP defect layers into the quantum well active structure. The laser can be implemented variously as a Fabry-Perot laser and a laser array.
Patent CA-2373402-A1 (CA)
Inventor: TATAKIN ALEXANDER N
IPC: C25C3/04
Filed: 2002-02-26
Abstract: The method of production of magnesium and chlorine consists of the steps of: dehydrating a feedstock of chlorine-magnesium solution containing ammonia compounds; separating anhydrous magnesium chloride therefrom; and electrolytically decomposing magnesium chloride, so as to produce magnesium and chlorine. In this method an initial chlorine-magnesium solution after decontamination is saturated with ammonium chloride and supplied to a fluidized bed dryer for direct production of substantially solid anhydrous ammonium carnallite with subsequent decomposition thereof to obtain anhydrous magnesium chloride, ammonia and hydrogen chloride. Ammonia and hydrogen chloride are recirculated with exhaust gasses within the process, whereas anhydrous magnesium chloride is supplied to electrolytic cells for production of magnesium and chloride.
Patent CA-2374894-A1 (CA)
Title: Dispositif interne de separation d'un melange comprenant au moins une phase gazeuse et une phase liquide
Inventor: LEPAGE JEAN-PAUL
IPC: B01D45/12
Filed: 2002-03-06
Abstract: Dispositif intégré dans une enceinte permettant une séparation d'un mélange comprenant au moins une fraction gazeuse et une fraction liquide, ledit mélange étant issu d'une zone de mise en contact d'une phase liquide, d'une phase gazeuse et de particules solides.
Patent CA-2375159-A1 (CA)
Inventor: PETROVIC BRANISLAV A
IPC: H04L5/06
Filed: 2001-05-17
Abstract: An agile frequency converter and method employs an IF/RF exchange process to  reduce the system noise generated by the frequency conversion process in generating a broadband composite signal. The converter employs a well-known two-stage frequency conversion process, but amplifies the intermediate outpu t signal generated by the first conversion stage to boost the input to the second conversion stage, achieving a commensurate increase in the level of t he output signal from the second conversion stage. This increased output level results in an increased signal-to-noise ratio between the RF channel carrier  component and the system noise floor. The converted output signal is then attenuated by an amount substantially equal to the amount of amplification o f the intermediate signal prior to the second stage of conversion. The result of this attenuation is an RF signal having frequency components with amplitudes  approximately equal to that which they would have had had the intermediate signal not been amplified, and results in a noise floor which is reduced by that same amount. Thus, the increased signal-to-noise ratio is maintained. T he converter also employs two tunable notch filters in series for purposes of filtering two second-order distortion components that find their way back in to the rangeof channel frequencies of the broadband signal. These tunable notch  filters are employed because the IF/RF exchange process actually decreases t he signal-to-distortion ratio for one of these components. For those RF channel  frequencies that fall in the middle of the channel frequency range of the broadband signal, no IF/RF exchange is employed because one of the distortio n components cannot be filtered because it is too close in proximity to the RF  signal components. In this case, the second stage of the frequency conversio n process is operated to produce an optimal signal-to-distortion ratio in the output of the converted signal, including no amplification of the intermedia te signal. The tunable notch filters employ two varactors in a back to back pus h- pull configuration to eliminate first order distortion in the transfer function of the filters.
Patent CA-2375659-A1 (CA)
Title: Power tool and convertible remote battery pack therefor
Inventor: PAGAC WILLIAM T
IPC: H01M50/543
Filed: 2000-06-15
Abstract: A battery pack (10) has a housing (11) with a plug portion (12) mateably receivable in a socket of a battery-powered power tool (30) on which the battery pack (10) is designed to be mounted. The battery pack also has a connector cable (15) with a connector plug (26) at its distal end mateably receivable in the tool socket so that the battery pack can be disposed remotely from the tool. The battery pack (10) can be mounted on tools with which it does not mate by use of an adapter (35) having a plug portion (37) mateably receivable in the tool socket, and an adapter socket (38) mateably receiving the battery pack plug portion (26). Multiple battery packs (23) ma y be interconnected on a wearable carrier (20) and connected to the tool by a cable (15) with a plug connector (26).
Patent CA-2375881-A1 (CA)
Inventor: DRUMM WESLEY C
IPC: A47J37/01
Filed: 2000-06-01
Abstract: A container for preparing and cooking food, such as a roaster oven, includes a main body having a bottom portion with sidewalls extending upwardly therefrom, a cover for covering the main body of the container, and a hinge assembly connecting the cover to the main body of the roaster oven. The hinge assembly includes a first portion attached to the cover, and a second portion extending downwardly from the first portion and attached to the rear sidewall of the main body of the container. The hinge assembly allows the cover to be opened in any desired position. The hinge assembly further includes a powered convection fan for turning the roaster oven into a convection oven. The mechanism which allows the cover to be opened in any desired position includes a torsion bar, a cam, and a cam follower.
Patent CA-2376732-A1 (CA)
Inventor: SO EDDY
IPC: G01R27/08
Filed: 2002-03-13
Abstract: A current comparator technique is applied to four-terminal resistance measurements for obtaining a highly accurate AC resistance bridge at power frequencies of 50 Hz to 60 Hz. Active circuits are used to establish equal voltage drops between the potential terminals of the two resistances being compared. The bridge is suitable for measuring resistances from 10µ.OMEGA. to 100k.OMEGA.. A cascading technique using two two-stage current transformers provides extension of the ratio range to 100,00,000 with a maximum applied current of 10,000A. The bridge features measurement with a resolution of 0.1x10 -6. The total combined uncertainty (2.sigma.) of the bridge including the range extenders, at power frequencies, is estimated to be less than 5 µ.OMEGA./.OMEGA..
Patent CA-2378752-A1 (CA)
Title: Device for soft irradiation
Inventor: CHANGARIS DAVID G
IPC: F21V29/02
Filed: 2000-06-20
Abstract: A device for soft irradiation comprising a reflector (10) having a cross-section in the shape of a spiral and an electromagnetic radiation source (12) positioned off-axis such that the source is shielded from direct view. A  cooling vent (14) and openings (16) provide impingement cooling of the source to allow efficient use of a high intensity radiation source. Cooling of the source may be further improved with the addition of one or more fluid moving devices in flow communication with the reflector. Optical reflectance coatings (20) on the surface of the reflector or transmission filters (32) allow the device to provide radiation output in selective bandwidths. Multiple reflectors may be used in combination to evenly illuminate complex or large surfaces. There are specific utilities to this design with both pulsed and continuous light sources.
Patent CA-2379321-A1 (CA)
Inventor: KRSTENANSKY JOHN L
IPC: A61P31/10
Filed: 2000-06-08
Abstract: Acid-modification of the aspartic acid and/or hydroxyaspartic acid units of naturally occurring or semi-synthetic pseudomycin compounds is described as well as methods of treatment against fungal activities.
Patent CA-2381420-A1 (CA)
Title: Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile
Inventor: WARNER R JAY
IPC: C07C53/08
Filed: 2000-08-07
Abstract: The method of the present invention provides an improvement upon prior art methanol carbonylation methods which substantially reduces the production of carbonyl impurities. The production of carbonyl impurities, particularly acetaldehyde, crotonaldehyde, and 2-ethyl crotonaldehyde, in methanol carbonylation reactions has been found to decrease by maintaining a partial pressure of hydrogen between about 0.1 and 4 psia at reaction total pressure of from about 15 to about 40 atmospheres total reaction pressure.
Patent CA-2382090-A1 (CA)
Title: Coxsackie virus-derived vector system for gene transfer
Inventor: KANDOLF REINHARD
IPC: C12N5/077
Filed: 2000-08-10
Abstract: The invention relates to a recombinant RNA molecule that can at least partially be translated in a target cell and that contains a non-infectious Coxsackie virus group B virus genome, preferably of the B3 serotype, and at least one foreign gene that induces a desired function in the target cell, f or example within the context of a genetic therapy. The RNA molecule can be encoded by a vector plasmid and/or can be packaged as a genome into a virion  by which the target cell can then be infected. The invention further relates  to methods for producing the RNA molecule, the virions and the vector plasmi d, and to corresponding kits.
Patent CA-2383278-A1 (CA)
Title: Antistatic polymer composition
Inventor: LACROIX CHRISTOPHE
IPC: C08L101/00
Filed: 2002-05-03
Abstract: The present invention relates to a composition comprising, per 100 parts by weight: 99 to 60 parts of a thermoplastic polymer (D), 1 to 40 parts of (A)+(B)=(C) (A) being a copolymer comprising polyamide blocks and polyether blocks, (B) being a polymer or an oligomer which comprises, in its chain, at least one ionic functional group and is chosen from: polyamides, copolymers comprising polyamide blocks and polyether blocks, thermoplastic polyesters or polyesteramides, copolymers comprising polyester blocks and polyether blocks, polyethers, polyurethanes. The invention also relates to the blends of (A) and (B) as product.
Patent CA-2383846-A1 (CA)
Title: Wind power machine
Inventor: LIE INGVALD
IPC: F03D5/02
Filed: 2000-10-06
Abstract: It is mentioned a device with a wind power machine for utilization of the energy in flowing fluid as air and water by that the device comprises transversal moving vanes which may yield a higher efficiency than e.g.  traditional wind mills. Furthermore there is mentioned a regulation system for the pitch and a supporting system for the vanes which will make a wind power machine like this more efficient than those we find in literature. In the same way it is mentioned a construction which may be built on a tower and thus came to higher level which may increase the efficiency considerably as the air speed increases with about the power of four.
Patent CA-2383879-A1 (CA)
Title: Interferometric processing method to identify bed boundaries
Inventor: HAGIWARA TERUHIKO
IPC: G01V3/30
Filed: 2000-08-29
Abstract: A method and apparatus are disclosed for identifying boundaries between thin beds having different resistivities. In one embodiment, the method includes (a) transmitting an oscillatory signal from a first transmitter; (b) determining a first phase difference between signals induced in two receivers by the oscillator signal from the first transmitter; (c) transmitting an oscillatory signal from a second transmitter; (d) determining a second phase difference between signals induced in the two receivers by the oscillatory signal from the second transmitter; and (e) calculating an interferometric difference between the first and second phase differences. When the transmitters are symmetrically located with respect to the receivers, the interferometric difference exhibits a maximum or minimum value near the boundary location. This low-complexity method provides good boundary detection results when the bed thickness is larger than the transmitter-receiver spacing.      In a second method embodiment, the interferometric difference is calculated from the logarithm of the measured attenuation.
Patent CA-2386185-A1 (CA)
Title: Fibrinolytically active polypeptide
Inventor: MANN MICHAEL BENJAMIN
IPC: C12N9/64
Filed: 2000-09-29
Abstract: A fibrinolytically active metalloproteinase polypeptide (called "novel actin g thrombolytic") which is useful for blood clot lysis in vivo and methods and materials for its production by recombinant expression are described.</SDOAB >
Patent CA-2386357-A1 (CA)
Title: A method for increasing crops yield
Inventor: BAR ZVI
IPC: A01N25/00
Filed: 2000-10-04
Abstract: The invention relates to a method for increasing crop yield of cultivated plants comprising spraying the soil surface with herbicide and with polymers formulation either as a mixture or successively, first the herbicide then the polymers formulation, as part of the soil preparation before planting or after seeding.
Patent CA-2386556-A1 (CA)
Inventor: WHITMAN ROBERT JAMES
IPC: H04B10/20
Filed: 2002-05-15
Abstract: An optical fiber selection system automatically recommends an appropriate optical fiber type for a communication network, based on input from a user. In one embodiment, the system includes a user computer system that is in communication with a vendor computer system. The vendor computer system executes code and performs a number of steps. Initially, the vendor computer system receives at least one technical parameter associated with the proposed communication network from the user, via the user computer system. Next, the vendor computer system automatically selects an optical fiber type for the communication network based on the least one technical parameter. Finally, the vendor computer system provides the selected optical fiber type to the user, via the user computer system.
Patent CA-2387402-A1 (CA)
Title: Positioner
Inventor: HOLMBERG JOHAN
IPC: F15B13/042
Filed: 2000-10-12
Abstract: The present invention relates to an electro-pneumatic positioner for use with a pneumatically controlled two-chamber actuator comprising a first valve unit comprising a first air supply valve and a first air outlet valve connected to a conduit, which in turn is connected to a chamber of the actuator, a second valve unit comprising a second air supply valve and a second air outlet valve connected to a conduit, which in turn is connected to a second chamber of the actuator; a first control device acting on the first air supply valve, which first control device comprises a first control valve; a second control device acting on the said second air supply valve, which second control device comprises a second control valve.