baber/WOPTO huggingface dataset:
Patent CA-2186976-C (CA)
Title: Ozone enriching method
Inventor: SANUI HIROSHI
IPC: C01B13/10
Filed: 1996-02-05
Granted: 2001-09-04
Abstract: An ozone enriching method which comprises passing a plurality of adsorption columns packed with an adsorbent having the capability of preferentially adsorbing ozone through successively the step of holding the adsorbent at a low temperature to adsorb ozone, the step of heating the adsorbent to desorb ozone and introducing a given amount of a scavenging gas into the adsorbent after the completion of the desorbed ozone entrained by the scavenging gas, and the step of cooling the adsorbent after the completion of the desorption step is conducted under predetermined temperature rise conditions depending upon the time taken from the initiation of the desorption to the temperature for the adsorption step, thereby enriching ozone. Heating of the adsorbent in the desorption step is conducted under predetermined temperature rise conditions depending upon the time taken from the initiation of the desorption or the concentration of ozone in the gas to be discharged. A gas having a predetermined pressure is used as the scavenging gas in the desorption step. The adsorption step is conducted in two stages, a pre-adsorption step and a main adsorption step. A low-temperature oxygen is used as a cold source in the cooling step and, after use, fed as a starting material for ozone into an ozonizer.
Patent CA-2191269-C (CA)
Inventor: RITTNER ROLAND
IPC: H01K1/26
Filed: 1996-11-26
Granted: 2005-02-08
Abstract: The invention concerns an electrical incandescent lamp with a low-beam cap, particularly a two-filament halogen incandescent lamp and a production process for such a lamp, as well as a low-beam cap. Low-beam screening cap (12) has an opening (14), through which one end (6a) of low-beam filament (6) is threaded. This filament end (6a) is welded to the back side of low-beam screening cap (12) or to a current lead wire (8a), which is attached by a projection welding to the back side of low-beam screening cap (12). The fastening of low-beam filament (6) according to the invention makes possible materials savings in the case of a low-beam screening cap (12) and a more lower cost lamp manufacture.
Patent CA-2193085-C (CA)
Title: Composite membranes for solid phase extractions and reactions
Inventor: HAGEN DONALD F
IPC: G01N30/52
Filed: 1995-06-02
Granted: 2003-12-09
Abstract: A solid phase extraction or chromatographic medium comprises a porous nonwoven fibrous matrix comprising at least one of polytetrafluoroethylene and blown microfibers, and sorptive or reactive hydrophobic siliceous molecular sieve particulates enmashed in said matrix, the ratio of molecular sieves to matrix being in the range of 40:1 to 1:40.
Patent CA-2197378-C (CA)
Title: Papermaking screen
Inventor: AIKAWA YOSHIHIKO
IPC: B01D29/11
Filed: 1997-02-12
Granted: 2003-01-07
Abstract: A papermaking screen equipped with a plurality of screens in a tank thereof is capable of efficiently separating useful fibers and foreign substances while preventing the screens from clogging at the same time.  The papermaking screen is equipped with:  a tank for holding a papermaking material, which tank has a papermaking material inlet, a screened material outlet, a first foreign substance outlet, a second foreign substance outlet, and a dilution water supply port; a cylindrical first screen which is provided in the tank, which separates the interior of the tank into a primary compartment and a secondary compartment, and which has an interstice composed of a round hole, slit, or the like; a second screen provided with an outer peripheral surface which has an interstice composed of a round hole, slit, or the like that is larger than the interstice of the first screen, an inner peripheral surface having a papermaking material port which admits the passage of the papermaking material, and a ceiling surface connecting the apex of the inner peripheral surface and the apex of the outer peripheral surface, and which is provided outside the cylindrical first screen; a rotary member which is rotatably provided in the vicinity of the ceiling surface of the second screen; a stirring unit which is equipped with a first stirrer which is suspended from the ceiling surface of the rotary member and opposed to the outer 2.   side of the first screen and a second stirrer which is suspended from the ceiling surface of the rotary member and opposed to the outer side of the outer peripheral surface of the second screen, and which stirs the papermaking material in the primary compartment; wherein the inlet and the first foreign substance outlet are communicated with a first chamber which is provided in the primary compartment and which is formed outside the second screen, the dilution water supply port is communicated with a second chamber surrounded by the outer peripheral surface, the inner peripheral surface, and the ceiling surface of the second screen, and the second foreign substance outlet is communicated with a third chamber surrounded by the first screen, the inner peripheral surface of the second screen, and the ceiling surface of the rotary member.
Patent CA-2202390-C (CA)
Title: Keratinocyte growth factor analogs
Inventor: ARAKAWA TSUTOMU
IPC: C12P21/02
Filed: 1995-10-12
Granted: 2005-05-17
Abstract: Novel analogs of proteins of KGF are provided comprising a charge-change by the deletion or substitution of one or more of amino acid residues 41-154 (amino acids 72-185 of SEQ ID NO:2). These analogs are more stable than the corresponding parent molecule KGF.
Patent CA-2206172-C (CA)
Title: New derivatives of 10,11-dihydro-10-oxo-5h-dibenz/b,f/azepine-5-carboxamide
Inventor: DA SILVA PATRICIO MANUEL VIEIR
IPC: A61P25/28
Filed: 1997-05-27
Granted: 2002-07-16
Abstract: Compounds of general formula I are described (see fig. I) as is a process for their preparation which consists of reacting a compound of formula II                        (see fig. II) with hydroxylamine or its derivatives of formula III                          H2NOR2  (III) The compounds cited in the present invention have valuable pharmaceutical properties namely in the treatment of some disturbances in the central and peripheral nervous system.
Patent CA-2210216-C (CA)
Title: .beta.-dithiophosphorylated propionic acid in lubricants
Inventor: ROHRBACH PETER
IPC: C10L10/08
Filed: 1997-07-11
Granted: 2006-01-31
Abstract: A description is given of compositions comprising A) a lubricant, a metalworking fluid or a hydraulic fluid, in particular a base oil from the group consisting of the mineral, vegetable and synthetic (for example poly-.alpha.-olefin or ester) oils;      B) from 0.005 to 1.0 % by weight of a compound of the formula   in which R1 and R2 independently of one another are C3-C18alkyl, C5-C12cycloalkyl, C5-C6cycloalkylmethyl, C9-C10bicycloalkylmethyl, C9-C10tricycloalkylmethyl, phenyl or C7-C24alkylphenyl or together are (CH3)2C(CH2)2, and R3 is hydrogen or methyl, and, if desired, C) other customary oil additives from the groups consisting of antioxidants, metal passivators, rust inhibitors, dispersants, detergents, viscosity index improvers, pour point depressants, antifoams, solid lubricants and further antiwear additives.
Patent CA-2210575-C (CA)
Inventor: SEGAL LEON
IPC: F21V7/04
Filed: 1996-01-19
Granted: 2006-06-27
Abstract: A light directing optical structure is formed of a light waveguide (40) preferably made of clear plastic; attached to or formed with the waveguide are a multiplicity of prisms (42). Each prism (42), due to its index of refraction, provides an aperture where light may escape the waveguide (40) rather than remain confined due to total internal refraction. The light escaping the waveguide (40) is reflected from a side face (32) of the prism (42), and redirected in a desired direction. The propagation paths within the waveguide (40) are such that the light emerging through the aperture is of only a fairly closely constrained range of angles; as a result the light that is redirected by the side face of the prism is of a similarly constrained range of angles. The geometry of the prism (42) can be optimized to direct the output light perpendicular to the plane (33) of the waveguide (40), or at a desired angle other than perpendicular. The optical structure can receive a light input along an edge, or along several edges, and its output beam is perpendicular to the structure or at some desired angle other than perpendicular. There is no restriction on the distribution and uniformity of the light input, yet the output is a directed and intensity controlled light source. Configurations are disclosed adapting the structure to several different possible light distribution patterns.
Patent CA-2212150-C (CA)
Title: Anticorps monoclonaux contre des antigenes de surface de cellules osteogenes
Inventor: CAPLAN ARNOLD I
IPC: C12N15/02
Filed: 1996-01-03
Granted: 2002-12-10
Abstract: Anticorps monoclonaux spécifiques de sous-ensembles de cellules ostéogènes humaines normales et lignées cellulaires d'hybridome monoclonales qui synthétisent et sécrètent ces anticorps monospécifiques, ainsi que les utilisations des anticorps monoclonaux à des fins diagnostiques et/ou thérapeutiques.
Patent CA-2214363-C (CA)
Inventor: FAIRCHILD GEORGE HENRY
IPC: C03C1/00
Filed: 1997-09-02
Granted: 2005-11-08
Abstract: A method is disclosed of producing a calcium silicate precursor material.  The method is advantageous in providing material useful in glass making. Such method involves the reaction of calcium oxides and magnesium oxides, water and sodium silicates. The glass formation is performed at a lower temperature than usual and performed with a lower amount of volatile gas release. Less cristobalite formation in the glass occurs.
Patent CA-2216054-C (CA)
Inventor: YAMASHIROYA ATSUSHI
IPC: H01L21/822
Filed: 1997-09-19
Granted: 2000-11-28
Abstract: A semiconductor integrated circuit device including a logic area for executing logical operation and a history holding circuit for managing discrete information concerning own device, the history holding circuit further comprising an EEPROM for holding discrete information, an input terminal for writing external information into the EEPROM and an output terminal for reading out information held in the EEPROM.
Patent CA-2219828-C (CA)
Inventor: PERREAULT JEAN-PIERRE
IPC: B28D1/18
Filed: 1997-10-31
Granted: 2001-12-11
Abstract: An apparatus for treating selected at least partial surfaces of a masonry block, including at least a flail means having a shaft with an axis of rotation in a vertical plane, at least a moving means for moving one of the said masonry blocks parallel to the vertical plane  and  the  flail  means,  means  for  holding  the masonry blocks with the selected surface to be treated at a distance from the shaft to be impacted by the flail means.
Patent CA-2221882-C (CA)
Inventor: WESTGARTH PETER
IPC: E04H15/48
Filed: 1997-11-21
Granted: 2005-02-08
Abstract: The invention provides a collapsible panel particularly suitable for a partition or enclosure system. In the preferred embodiment each panel has a flexible membrane affixed to an extruded frame, the corners of the frame having hinges which alternately fold along the plane of the frame and perpendicular to the plane of the frame. The frame is thus collapsible in two directions so as to collapse to a very small cross-sectional area, and when the panel is opened the membrane is pulled taut, which imparts structural integrity to the panel and prevents billowing of the membrane in windy conditions. Connecting elements are also provided so that the panels can be connected together to form a self-standing enclosure, or affixed to scaffolding or any other suitable frame structure.
Patent CA-2227759-C (CA)
Inventor: MCCURRY RONALD C
IPC: B23Q16/00
Filed: 1996-08-09
Granted: 2006-04-04
Abstract: The height adjustment ring assembly (16) is provided for adjusting height of a router motor housing (26) relative to a router base (12), the router (10) being movable between upright and inverted positions. The housing (26) includes external threads (30) formed thereon. The height adjustment ring assembly (16) comprises a support member (46) secured to the router base (12), the support (46) having a radially extending flange portion (58). An annular adjustment ring (48) includes an internal thread (70) for cooperation with the external threads (30). Means (50) for entrapping the flange portion (58) with respect to the adjustment ring (48) is provided, thereby limiting relative axial movement while allowing free relative rotation of the adjustment ring (48) with respect to the support member (46) for adjustment of the router motor housing (26) regardless of router (10) position.
Patent CA-2228448-C (CA)
Inventor: GODWIN JOHN HOWARD
IPC: F16C25/06
Filed: 1996-08-08
Granted: 2006-10-03
Abstract: A bearing arrangement, for example, for a variable pitch propeller, has a fluid operated actuator (42, 34, 40) for causing relative movement between bearing surfaces of races (12, 32) so as to preload bearings (30) held therebetween. Mechanical locking means (34, 36, 38) is provided to maintain the bearings under preload when the fluid pressure is released from the actuator.
Patent CA-2228717-C (CA)
Inventor: DERVIEUX DOMINIQUE
IPC: A61N1/04
Filed: 1996-08-30
Granted: 2007-10-16
Abstract: Portable device for relief of pain and contractures and skin rejuvenation comprising a head (10) for applying electric current pulses to the skin of a user and a handle (16) held by the user's hand. The head has the shape of a cylinder portion of which the generatrix has a convex shape, the head having at least one electrode (22, 24) situated on its external surface or at a constant distance from said external surface and of which at least one portion is situated on each generatrix of the cylinder part susceptible to be in contact with the user's skin. Thus, the head is always in contact with the user's skin by one of the generatrics lines of the cylinder portion comprising an electrode portion independently of the inclination of the head with respect to the user's skin.
Patent CA-2229185-C (CA)
Title: Plaster structure for iontophoresis
Inventor: HIGO NARUHITO
IPC: A61K9/70
Filed: 1995-08-14
Granted: 2002-02-12
Abstract: Plaster structures for iontophoresis are disclosed for the administrati on of drugs through skin and mucous membranes. The devices provide for the stable retention and storage of a predetermined amount of a physiologically active agents until the device is applied to a patient. The devices include an electrically conductive medicinal substance storing layer which contains physiologically active agents, and a non-permeable backing layer which covers the medicinal substance storing layer. An electrode passes through the backing layer where it makes contact with the medicinal substance storin g layer. On the opposite side of the storing layer a non-permeable protective layer is provided which a has a portion adapted to be removed to allow access to the medicinal substance storing layer. This protective layer supports the medicinal substance layer and, on the opposite side, is provide d with an adhesive agent layer. The adhesive agent is protected by a laminate layer. The device is designed so that when the laminate layer is removed to expose the adhesive agent, a potion of the protective layer is also removed allowing the medicinal substance storing layer to be brought into contacted with skin or a mucous membrane.
Patent CA-2236003-C (CA)
Title: Procede de preparation de fer-dextran cristallin
Inventor: SCAGGS LAURIE
IPC: C08B37/02
Filed: 1996-11-08
Granted: 2006-03-14
Abstract: Ce procédé de cristallisation d'un complexe fer-dextran, sous une forme facile à filtrer, consiste à ajouter lentement, tout en l'agitant, une solution acidifiée aqueuse fer-dextran dans un récipient contenant un solvant organique miscible avec l'eau tel que le méthanol. On décrit aussi des complexes fer-dextran ainsi préparés.
Patent CA-2237608-C (CA)
Title: Pivoting mower deck mechanism
Inventor: DAVIS ROBERT DEAN JR
IPC: A01D34/64
Filed: 1998-06-11
Granted: 2002-01-22
Abstract: A locking mechanism for latching together front and rear frame portions which are pivotal to expose the underside of a deck. The locking mechanism includes a lever, intermediate link and blocking member that provide an over-center feature for securing the locking mechanism in its latched mode. Pivoting of the lever lifts the front and rear frame portions to their proper orientation for being latched together by the locking mechanism.
Patent CA-2245172-C (CA)
Title: Temporal and resolution layering in advanced television
Inventor: DEMOS GARY E
IPC: H04N5/44
Filed: 1997-01-24
Granted: 2005-04-12
Abstract: A method and apparatus for image compression which demonstrably achieves better than 1000-line resolution image compression at high frame rates with high quality. An MPEG-2 data stream is then generated, comprising: (1) a base layer (100), preferably encoded using only MPEG-2 P frames, comprising a low resolution (e.g., 1024 × 512 pixels), low frame rate (24 or 36 Hz) bitstream; (2) an optional base resolution temporal enhancement layer (102), encoded using only MPEG-2 B frames, comprising a low resolution (e.g., 1024 × 512 pixels), high frame rate (72 Hz) bitstream; (3) an optional base temporal high resolution enhancement layer (104), preferably encoded using only MPEG-2 P frames, comprising a high resolution (e.g., 2kx1k pixels), low frame rate (24 or 36 Hz) bitstream; (4) an optioanl high resolution temporal enhancement layer (106), encoded using only MPEG-2 B frames, comprising a high resolution (e.g., 2kx1k pixels), high frame rate (72 Hz) bitstream.
Patent CA-2253850-C (CA)
Title: Method and apparatus for automatically detecting malignancy-associated changes
Inventor: HARRISON S ALAN
IPC: G01N33/48
Filed: 1997-05-01
Granted: 2007-09-18
Abstract: A method for detecting malignancy-associated changes. A sample of cells is obtained and stained to identify the nuclear DNA material. The sample is imaged with a digital microscope. Objects of interes t are identified in the sample of cells based on the intensity of the pixels that comprise the object versus the average intensity of all pixe ls in the slide image. An exact edge is located for each object and variations in the illumination intensity of the microscope are compensat ed for. A computer system calculates feature values for each object and, based on the value of the features, a determination is made whether the cell exhibits malignancy-associated changes or not.
Patent CA-2254563-C (CA)
Title: High-volume sand trap and method
Inventor: SORHUS ATLE J
IPC: E21B27/00
Filed: 1998-11-23
Granted: 2004-11-09
Abstract: A sand-capturing tool is disclosed, as well as a method, The tool relies on an eductor. The eductor is supplied by pumped fluid from the surface through a coiled tubing support for tho tool. The eductor induces flow into a central tube in the tool which brings in with it the sand to be captured.  Ultimately, the cross-sectional area of the induced fluid flow is increased to reduce its velocity and to further induce the sand which has been brought through the narrow inner tube to drop out into an annular area around the inner tube. The clean fluid exits through a screen and goes around the eductor and uphole to the surface. In an alternative embodiment, the assembly can be supported on an electric line employing a downhole pump which provides the motive fluid force for the eductor jet, In this embodiment, the remaining operation is the same.
Patent CA-2255557-C (CA)
Title: Forced-ventilation shoe
Inventor: BRUE ALDO
IPC: A43B17/08
Filed: 1997-05-21
Granted: 2006-01-24
Abstract: Forced-ventilation shoe comprising a midsole or insole provided with a plurality of through-holes, resilient support means arranged between the outsole and the midsole or insole apt to form an air chamber between said elements, and means for occluding said holes, apt to close off individually the holes themselves during pressing of the foot on t he insole. Preferably the occluding means consist of a plurality of reliefs projecting from the upper surface of the outsole and matching sai d holes.
Patent CA-2263829-C (CA)
Inventor: OGASAWARA MASAHI
IPC: C09D11/00
Filed: 1999-03-02
Granted: 2002-12-10
Abstract: An ink for ink-jet recording is provided that reduces long-term performance deterioration when used with an exothermic heater. The ink contains at least one substance selected from dicarboxylic acids, dicarboxylates, tricarboxylic acids and tricarboxylates, bis-hydroxyethyl sulfone, and a water-soluble coloring material in an aqueous medium.
Patent CA-2264157-C (CA)
Inventor: KITA YOSHINORI
IPC: F01K23/10
Filed: 1998-06-24
Granted: 2005-01-04
Abstract: Disclosed is a steam cooling system for gas turbine combustors, in which steam valve 12 is opened and steam from boiler 4 is conducted, and thereby a combustor of gas turbine 1 is cooled, and steam recovery valve 11 is opened and this steam is returned to steam turbine 5. When the amount of steam at the combustor outlet decreases, the temperature of temperature sensor 3I increases, and when this exceeds a predetermined value, temperature regulating valve 30 is opened and steam from steam turbine 5 is extracted and is let into the cooling steam outlet side flow path 61 through a steam flow path. When the value of pressure sensor 24 reaches a predetermined value, bypass valve 14 is opened and steam is caused to flow to condensor 6, and the necessary amount of steam is maintained within the combustor. This is all controlled by means of controller 10, which constantly maintains the temperature of the cooling steam at predetermined values.
Patent CA-2264488-C (CA)
Inventor: VAKHARIA VIKRAM N
IPC: C12N15/40
Filed: 1997-07-31
Granted: 2009-04-07
Abstract: L'invention concerne un système servant à fabriquer un Birnavirus vivant, tel qu'un virus de bursite infectieuse (IBDV) - qui est un virus d'ARN bicaténaire segmenté de la famille Birnavirdae - à partir de transcrits synthétiques dérivés d'ADN cloné. Des clones d'ARNc entiers et indépendants sont fabriqués de façon à contenir les zones de codage et de non codage entières des segments d'ARN A et B de l'IBDV, respectivement. Les ARN synthétiques des deux segments ont été produits par transcription in vitro de plasmides linéarisés avec une polymérase d'ARN T7. La transfection de cellules Véro avec des transcrits combinés à sens positif des deux segments produit un virus infectieux seulement 36 heures après la transfection. Le développement d'un système génétique inverse de virus d'ARN bicaténaires facilitera grandement les recherches sur la régulation de la pathogenèse de l'expression de gènes viraux et la conception d'une nouvelle génération de vaccins vivants et rendus inactifs.
Patent CA-2265609-C (CA)
Inventor: SUZUKI TERUHIKO
IPC: H04N19/00
Filed: 1998-07-17
Granted: 2005-05-17
Abstract: L'invention concerne un circuit de démultiplexage séparant un descripteur de scène (SD), un descripteur d'objet (OD), et des trains de bits (ES), des décodeurs (207-1 à 207-n) permettant de décoder ledit train de bits. Les données de sortie d'un descripteur d'objet identique (OD) (constituant un objet identique) provenant des données de sortie desdits décodeurs, sont mélangées par un circuit mélangeur (261). Ces donnés mélangées sont ensuite transmises au circuit de synthétisation d'objet (272-i) d'un circuit de synthétisation (252) pourvu d'un point correspondant. Ce circuit de synthétisation d'objet (272-i) met en corrélation un objet avec une image et effectue un mappage de texture.