baber/WOPTO huggingface dataset:
Patent CA-2264317-A1 (CA)
Title: Susceptor for semiconductor manufacturing equipment and process for producing the same
Inventor: NAKATA HIROHIKO
IPC: C30B31/14
Filed: 1999-03-02
Abstract: A susceptor for semiconductor manufacturing equipment obtained by laminating plural aluminum nitride (A1N) ceramic substrates with a high melting point metallic layer and an adhesive layer, and in particular, the aluminum nitride (A1N) ceramic substrate contains a compound of a Group 3a element in an amount of from 0.01 to 1% by weight in terms of the element, and the balance consisting essentially of aluminum nitride (A1N), in which the average particle size of an A1N crystal is from 2 to 5 µm. The susceptor is prepared by obtaining substrates from a mixture of the material powders through the steps of molding, sintering in a non-oxidizing atmosphere at 1,600 to 2,000°C and forming into a desired substrate shape, and then laminating a plurality of the thus obtained substrate.with a high melting point metallic layer and an adhesive layer inserted between the substrates, firing the laminate in a non-oxidizing atmosphere at 1,500 to 1,700° and finishing the fired laminate.
Patent CA-2269518-A1 (CA)
Title: Process for the combined synthesis of betaine and choline chloride
Inventor: MATHRE OWEN B
IPC: C07C227/08
Filed: 1997-10-29
Abstract: A process for the combined synthesis of betaine and choline chloride from monochloroacetic acid, trimethylamine and ethylene oxide by first reacting trimethylamine with monochloroacetic acid, and then reacting ethylene oxide with the reaction product from the previous step.
Patent CA-2271513-A1 (CA)
Inventor: MAJEROWSKI AMELIA H
IPC: F21V37/00
Filed: 1999-05-12
Abstract: A liquid fuel lamp having a fuel container for containing a combustible liquid fuel, the fuel container having an open mouth. A non-metallic flame guard is connected to the fuel container and closes the mouth, the flame guard having a flared skirt that extends radially outward, covering the fuel container, and a wick opening in the flame guard, located above the mouth of the fuel container. A flame resistant wick holder is located in the wick opening and is not in contact with the fuel container. A wick extends upwardly from within the fuel container, through the wick holder, to a location above the flame guard without any continuous metallic heat flow path from the wick holder to the fuel container.  The portion of the wick beneath the flame guard is guarded from free contact with the atmosphere surrounding the lamp by the combined action of the fuel container, flame guard, and wick holder.
Patent CA-2272058-A1 (CA)
Title: Procede de realisation d'un mobilier de cuisine et mobilier de cuisine obtenu au moyen dudit procede
Inventor: PRIEUR ALAIN
IPC: A47B47/04
Filed: 1999-05-14
Abstract: Procédé de réalisation d'un mobilier de cuisine et mobilier de cuisine obtenu au moyen dudit procédé. Le procédé consiste à construire simultanément tous les compartiments destinés à être alignés le long d'un mur ou analogue, par assemblage de panneaux en commençant par le bas. Le mobilier comporte un plancher (2) coupé aux dimensions sur lequel sont fixées des parois verticales (3) de séparation des compartiments (10), elles-mêmes recouvertes d'un plafond (4).
Patent CA-2272316-A1 (CA)
Title: Thermoplastic elastomeric compositions and films formed therefrom having improved moisture vapor transmission rates
Inventor: BRINK MARY HEATHER
IPC: C08K7/22
Filed: 1997-11-25
Abstract: The invention relates to novel compositions comprising thermoplastic elastomers and microporous inorganic fillers, and novel continuous, non-porous films formed therefrom which are impermeable to blood and air-borne pathogens, such as viruses and bacteria, and preferably have enhanced moisture vapor transmission rates (MVTR).
Patent CA-2272651-A1 (CA)
Title: Anti-intrusion apparatus, particularly for passage openings, like doors, windows, or similar
Inventor: DONI ROBERTO
IPC: G08B13/12
Filed: 1997-11-19
Abstract: Anti-intrusion apparatus, particularly for passage openings, like doors, windows, or similar, comprising sensing means (1, 201, 301), which detect the passage or the attempted passage through an opening (A), and generate or modify a signal, and electronic means (12) for recognizing and processing the said signal for the control of warning means or actuators of other kind. The apparatus comprises at least one sensor (1) or one group of sensors supported so as to be movable like a curtain (2, 3, 4, 5) or similar from an idle position, in which the sensors (1) are gathered on one side of the opening (A), leaving it substantially clear, into an operating position, in which the sensors (1) are arranged according to a predetermined design on the whole extension of the opening (A), whereas the sensors (1) are of the type that can generate a signal or modify a reference signal when they are moved from the position they take with no stresses, like movements or similar, acting thereupon, into their operating condition.
Patent CA-2274529-A1 (CA)
Title: High dynamic range variable gain amplifier
Inventor: SAHOTA S GURKANWAL
IPC: H03G3/30
Filed: 1997-12-19
Abstract: A multi-stage low power, high dynamic range variable gain amplifier (100) comprises an input stage (120) cascaded with one or more current amplifier stages (160A, 160B) whereby the gain of each stage (120) may be independently controlled. The input stage (120) may be comprised of a variable transconductance amplifier (227) using variable emitter degeneration. The current amplifier (160A, 160B) may be comprised of a differential Darlington amplifier (510) coupled to a differential cascode amplifier (520). The transconductance amplifier (227) converts an input voltage signal to a current signal. The variable gain amplifier (100) is designed for efficient low power operation.
Patent CA-2275406-A1 (CA)
Inventor: THORNE CHARLES R
IPC: H04L7/033
Filed: 1998-10-20
Abstract: A TDMA system (11) is provided using a programmable, fixed-period frame structure for communication between network terminals (6, 10). All bursts are timed with respect to this programmable periodic frame. Each terminal (6, 10) uses its local clock to generate a transmit frame period and a receive frame period. According to the invention an Acquisition and Synchronization procedure is provided to align the start of transmit frame period and start of receive frame period at each terminal in such a way that if a burst is transmitted by any terminal at offset x after a local start of transmit frame period, then all terminals receive that burst at position y after their local start of receive frame periods, where ¦y-x¦ is less than a small threshold value. In addition, a number of different types of bursts are used for communication between terminals. The various types of bursts are programmable. In other words, the parameters defining the bursts, such as length, frequency, and location within a frame may be dynamically assigned by the network based on monitored network conditions.
Patent CA-2280210-A1 (CA)
Inventor: POULSEN PETER
IPC: C12N15/09
Filed: 1998-02-23
Abstract: L'invention concerne une méthode d'inhibition de l'expression d'un gène. Cette méthode, laquelle affecte l'activité enzymatique dans un végétal, consiste à exprimer dans un végétal (ou une cellule, un tissu ou bien un organe de celui-ci) une séquence nucléotidique codant partiellement ou totalement pour un intron de l'enzyme ramifiante de l'amidon de classe A dans une orientation sens, cette séquence nucléotidique ne contenant pas de séquence qui soit sens vis-à-vis d'une séquence d'exon normalement associée avec l'intron.
Patent CA-2281420-A1 (CA)
Inventor: SWIDER KAREN
IPC: A61K31/485
Filed: 1999-09-03
Abstract: The present invention provides a core of predominately microcrystalline cellulose, on which an active drug is layered onto the core via solution coating. The coated particles have a narrower particle size distribution than coated granules provided by other processes. An optional final coating of a pharmaceutically acceptable polymeric coating is provided to provide tastemaking or controlled release, and protection of the drug-layered particles.
Patent CA-2282251-A1 (CA)
Inventor: MAIER GUIDO ALBERTO
IPC: H04B10/158
Filed: 1999-09-15
Abstract: An optical device comprising: - an input for an input optical impulse; - an optical beam splitting element for supplying, from the said input optical impulse, a first pair of optical impulses and a second pair of optical impulses; - at least a first optical delay element to delay, by a predetermined time, at least one of the said optical impulses of the said first pair; - at least a second optical delay element to delay, by a predetermined time, at least one of the said optical impulses of the said second pair; - a first optical processing element capable of supplying a first output optical signal when commanded by the said first pair of optical impulses; - a second optical processing element capable of supplying a second output optical signal when commanded by the said second pair of optical impulses; - a first output connected to the said first optical processing element for the said first output optical signal; - a second output connected to the said second optical processing element for the said second output optical signal.
Patent CA-2282529-A1 (CA)
Inventor: OLSEN FINN
IPC: H04M15/00
Filed: 1998-02-19
Abstract: A method for handling calls in a telecommunications network (1) comprises monitoring an operating parameter of a call which is made by a customer (3) of a telecommunications network (1) and which has preselected characteristics, selecting that call if the monitored operating parameter equals a predetermined value, and if the call is selected, notifying the customer (3) of the selection. The operating parameter indicates the total number of calls made in the network (1) with the said preselected characteristic.
Patent CA-2284056-A1 (CA)
Title: Improved loin knife assembly for automatic loin puller apparatus
Inventor: CHAPPELL DAVID L
IPC: A22C17/00
Filed: 1998-05-27
Abstract: An improved loin knife for a loin pulley apparatus having a scribe saw with an associated decelerator and depth gauge immediately in advance of the loin knife for the purpose of cutting through the ribs of the carcass middle. The loin knife has a bight region that is positioned and configured so as to extend through the fatback and to pull the loin portion with the fatback, and in pork carcasses the skin, intact. The bight has a substantially horizontal region that cuts through virtually the entire length of the fingers of lean, which include portions of the serratus dorsalis muscle. To assist in orienting a carcass middle with regard to the scribe saw and loin knife, the apparatus is provided with a load bar that engages the chine and provides for a more uniform alignment of the carcass middle with the loin knife in relation to the position of the chine. Also, a guide bar that is in substantial alignment with the load bar is provided to assist in the initial alignment of the carcass middle as the carcass middle is loaded into the loin pulley. A laterally driven impeller is provided to force the chine portion of the carcass middle into the load bar, thus straightening the chine against the load bar. The impeller is also rotatably driven to assist in driving the carcass middle toward the loin knife. A programmable logic controller, ("PLC"), is provided to control various operations of the loin pulley device.
Patent CA-2284507-A1 (CA)
Title: Axial flow, bi-rotor concrete reclaimer
Inventor: PREISSER MARK A
IPC: B07B1/22
Filed: 1999-10-04
Abstract: A concrete reclaimer having a pair of concentric mesh cylinders for separating wet concrete into its original components. The invention includes a hopper and feed screw for feeding wet concrete into the inner cylinder at a constant rate. The concrete is washed by a water spray as it passes through the cylinders.      The inner cylinder is made from coarse mesh which allows sand and cement, but not gravel, to pass through. Gravel is deposited from the outlet end of the inner cylinder. The outer cylinder is made from fine mesh, allowing cement, but not sand, to pass through. Sand is deposited into the bottom of at least one dewatering screw, which allows water to drain as it elevates the sand. The dewatering screw is in thermal contact with a heated liquid tank to prevent the water from freezing. The cement is dropped through the outer cylinder into a series of settling ponds, where it is allowed to settle out of the water.
Patent CA-2286397-A1 (CA)
Title: Humanized antibodies and methods for forming humanized antibodies
Inventor: BACA MANUEL
IPC: C12P21/08
Filed: 1998-04-03
Abstract: Described herein is a humanized antibody to vascular endothelial growth factor (VEGF). Also described herein is a method for rapidly producing and identifying framework mutations which improve the binding of humanized antibodies to their cognate antigens. In a preferred embodiment, non-human CDRs are grafted onto a human V1I-V HIII framework. Random mutagenesis of a small set of critical framework residues is also performed followed by monovalent display of the resultant library of antibody molecules on the surface of filamentous phage. The optimal framework sequences are then identified by affinity-based selection. Optionally, the selected antibodies can be further mutated so as to replace vernier residues which sit at the VLVH interface by residues which match the non-human parent antibody. The methods described herein can be applied to any non-human antibody. Accordingly, humanized antibodies are provided.
Patent CA-2289703-A1 (CA)
Title: Porous material and cementitious compositions prepared therefrom
Inventor: SOLSVIK RONNY
IPC: C04B28/02
Filed: 1999-03-12
Abstract: A method of treating a shell sand by heating it to 300 °C maximum for a time sufficient to remove substantially all of the water and organic content while maintaining substantially all of the inherent porosity of the shell sand. Generally, the time required varies between 10 minutes maximum at 300 °C to about 1 hour at 95 °C. The resulting material is useful in cementitious compositions, particularly mortars, these being characterized by a high flexibility and an exceptionally high degree of resistance to fire or heat.
Patent CA-2293917-A1 (CA)
Inventor: AUTREY TOM
IPC: G01N29/32
Filed: 1999-12-31
Abstract: The present invention is an improved photoacoustic sample vessel, having an acoustic coupler having a chamber for holding a liquid sample. The chamber is defined by a first body and a second body defining walls of the chamber and the second body has an acoustic detector mounted thereon.  Electromagnetic energy generates an acoustic signal within the liquid sample.  The acoustic signal propagates through the liquid sample into and through the second body to the acoustic detector. The improvement is the chamber having a container with the liquid sample therein and a couplant between the container and the walls of the chamber for acoustically coupling the liquid sample to the detector.
Patent CA-2293952-A1 (CA)
Title: Preparation of esters and analogs thereof
Inventor: REITZ DAVID B
IPC: A61K31/365
Filed: 1994-01-14
Abstract: Intermediates are disclosed for the preparation of a class of 3, 4-diaryl substituted furan compounds which have utility, amongst others, of being active ingredients for pharmaceutical compositions to treat inflammation and inflammation-related disorders. The intermediates are compounds of the Formula 15 (see formula I) wherein, in the above formulae, R2 and R3 are independently selected from C6-C12-aryl and heteroaryl, optionally substituted at a substitutable position with a radical selected from halo, C1-C10-alkyl, C1-C10-alkoxy, C1-C10-alkylthio, C1-C10-alkylsulfinyl, C1-C10-alkylsulfonyl, nitro, amide, amino, C1-C10-alkyl amino, sulfamyl and C1-C10-alkylsulfonylamino; provided that at least one of R2 or R3 is substituted with C1-C10-alkylsulfonyl or sulfamyl; or an analog.      There are also disclosed processes for preparing intermediates of Formula 15 by reacting a compound of the Formula (see formula II) with a compound of the Formula 14(a)   as defined above.
Patent CA-2298664-A1 (CA)
Title: Process for the preparation of l-carnitine
Inventor: BONG CHAN AH
IPC: C07C227/08
Filed: 1998-06-17
Abstract: The present invention relates to the process for the preparing of L-carnitine expressed by formula (1), which is useful in industrial mass production due to the fact that each reaction in the aqueous solution phase is continuously carried out in a reactor without separate purification process. More particularly, this invention relates to such process, wherein (S)-3-activated hydroxybutyrolactone is utilized as a raw material so as to undergo the following chemical reactions under the specific conditions: a ring-opening reaction, epoxydation at the chiral center which is inversely converted, and nucleophilic substitution of trimethylamine.
Patent CA-2298992-A1 (CA)
Title: Temperature compensated high performance oscillator
Inventor: LEMAY NORMAND T JR
IPC: H03C1/06
Filed: 2000-02-18
Abstract: The oscillator of the present invention generally comprises a resonating device that is directly coupled to ground and a circuit portion. The circuit portion is operably coupled to the resonating device and includes a first transistor and a second transistor. The first transistor provides DC feedback to the second transistor and enables a temperature independent bias current through said second transistor.
Patent CA-2300114-A1 (CA)
Title: Method for the recovery of formic acid
Inventor: ROUSU PASI PETTERI
IPC: C07C51/09
Filed: 1998-08-18
Abstract: The invention relates to a method for removing chemically bound formic acid from a material containing the same, in the presence of free formic acid. The method is characterized in that chemically bound formic acid is allowed to react to free formic acid at a normal pressure, at a temperature of less than 100 °C, the initial content of free formic acid being about 3 to 20 %. The reaction time is typically 0.5 to 4 hours. The material to be treated may be, for instance, material, obtained from a formic-acid-based pulp cooking process, containing cellulose and/or lignin.
Patent CA-2301703-A1 (CA)
Title: Method for producing concrete stones, especially paving stones, building stones or such like
Inventor: GEIGER PETER
IPC: B28B13/02
Filed: 1999-05-19
Abstract: The invention relates to a method for producing concrete stones, especially paving stones, building stones or such like, comprising a base part made of coarse-grained concrete (6) and a coloured facing layer made of concrete mortar which solidly covers the top of the base part. The coarse-grained concrete (6) is filled into a shaping tool (3) and compacted by vibrating and/or pressing in the shaping tool (3). From a storage reservoir (5) coloured concrete mortar is deposited on the coarse-grained concrete in the sunk chamber of the shaping tool (3) and compacted. The invention aims to make it possible to obtain concrete mortar mixtures for preparing facing layers having a similar defined aspect.  To this end the concrete mortar constituting the facing layer is formed of differently coloured layers (8, 9, 10, 11) which are stored in a stacked manner at the top of the reservoir (5). The concrete layers (8, 9, 10, 11) jointly and simultaneously are freely moved downwards by gravity together with partial sections and collide with or are guided onto an impact element (12) which is configured at a variable distance from the wall of the storage reservoir (5) and projects into the travel path of the partial sections. The partial sections are further guided by the impact element (12) along at least one deflection path and then mixed. As multicoloured concrete mortar they form, on the coarse-grained concrete, a marbled facing layer to be compacted.
Patent CA-2301781-A1 (CA)
Title: Cross-linking of polymers and foams thereof
Inventor: MULLINS MICHAEL J
IPC: C08F8/30
Filed: 1998-08-26
Abstract: The invention includes a process comprising (a) forming a polymeric admixture including at least one polyolefin which has been prepared using a single site catalyst and at least a cross-linking amount of at least one poly(sulfonyl azide) cross-linking agent; (b) shaping the resulting admixture; and (c) heating the resulting shaped admixture to a temperature at least the decomposition temperature of the cross-linking agent. The steps take place in any sequence and optionally include substeps. The single site catalyst is preferably a constrained geometry or metallocene catalyst, but optionally another transition metal catalyst which is not a traditional Ziegler Natta Ti/MgCl2 catalyst such as a vanadium catalyst. At least one polyolefin is preferably a polyethylene homopolymer, an ethylene copolymer also having at least one alpha olefin comonomer selected from monomers of from 3 to 20 carbon atoms; an elastomeric polymer, an ethylene/alpha olefin/diene terpolymer or interpolymer, a substantially linear ethylene polymer or a combination thereof. At least one polyolefin preferably has a molecular weight distribution less than about 3.5;  more preferably all of the polyolefins have that MWD. The polymeric admixture is preferably a blend comprising at least about 5 weight percent of at least one polyolefin made using a single site catalyst and at least one other polymer which differs from the polyolefin by having a different density, a different molecular weight, a different catalyst used in polymerization, a different chemical composition or combination thereof. The invention futher includes all compositions obtainable by the process of the invention as well as all articles formed from these compositions. The articles are preferably thermoformed, compression molded, injection molded, extruded, cast, blow molded, blown, profile extruded, spun, foamed or molded of any composition of the invention. The invention includes a use of any composition of the invention in any process of thermoforming, injection molding, extrusion, casting, blow molding, spinning, blowing, profile extrusion, foaming, compression molding or a combination thereof.
Patent CA-2302882-A1 (CA)
Inventor: MCMILLIAN RAY A
IPC: C12Q1/689
Filed: 2000-04-11
Abstract: Amplification primers and methods for specific amplification and detection of a Campylobacter jejuni and C. coli target are disclosed. The primer-target binding sequences are useful for amplification and detection of C. jejuni and C. coli target in a variety of amplification and detection reactions.
Patent CA-2305181-A1 (CA)
Inventor: WORTHINGTON MARK L
IPC: A61C5/08
Filed: 1998-10-27
Abstract: A set of fiber polycarbonate shells (20) for making bicuspid and molar crowns have lingual sidewalls (26) shorter than the buccal sidewalls for easy fit gingivally and occlusally and are sized to fit loosely between adjacent, and opposed teeth. The shells have windows (32, 34) in the mesio-distal sidewalls, and a window (353) in the occlusal wall. Using such shells provides crowns for a good fit to a prepared tooth and relative to adjacent and opposed teeth by filling the shell with glass filled acrylic resin filler, biting down on the filled shell to position the shell gingivally and occlusally. Resin filler (36A, 38A) extrudes through the windows to form good proximal contacts, with the shell rocking about the facial gingival margin to a comfortable occlusion with an opposed tooth. The excess resin filler, and shell are easily shaped to form the final crown. The crown, formed by polycarbonate reinforced resin, is durable enough for long-term wear.