baber/WOPTO huggingface dataset:
Patent CA-2057867-C (CA)
Title: Composite dental cement composition containing titanium
Inventor: COHEN BRETT I
IPC: A61K6/891
Filed: 1991-02-21
Granted: 1995-12-12
Abstract: A composite dental cement composition that is suitable for application with dental posts for either post insertion in a tooth or during core formation is provided. The cement composition includes a polymer matrix in an amount between about 15 and 50 weight percent, a filler in an amount between about 35 and 80 weight percent, and titanium in an amount between about 1 and 15 weight percent. The titanium ingredient chemically interacts with the polymer matrix in order to increase compressive strength of the cement composition. A fluoride compound may be added in order to substantially eliminate caries and further tooth decay.
Patent CA-2059979-C (CA)
Inventor: LINNAU YENDRA
IPC: C12N9/64
Filed: 1992-01-24
Granted: 2003-04-15
Abstract: Factor TX is selectively adsorbed by means of hydrophobic chromatography from an aqueous mixture captaining at least one plasma zymogen or a vitamin-K dependent protein in addition to factor IX. By this method, the efficient enrichment of factor IX for the production of pharmaceutical preparations has become possible.
Patent CA-2066418-C (CA)
Title: Smoking article
Inventor: TAMAOKI AKIMICHI
IPC: A24F42/60
Filed: 1991-05-21
Granted: 1996-10-29
Abstract: An article for smoking, by which a smoker inhales and tastes volatile content of flavor in the smoke of tobacco directly from a cigarette or through a holder such as pipe, comprising liquid-tight flexible tubular casings (5, 6) in which a resiliently de-formable cylindrical plastic vessel (2) containing liquid flavor whose viscosity is 520 cP or lower and a liquid-absorbing layer (3) for absorbing and keeping liquid flavor are internally disposed; and the plastic vessel is provided with a thin end wall for en-abling outflow of liquid flavor when broken at at least one part thereof by force exerted from outside of the casing and the liquid-absorbing layer is formed adjacently to the thin end wall of the plastic vessel. According to the above structure, unlike solid fla-vor, liquid flavor to be used is not limited but various kinds of them can be used, quantitative control of the content of flavor is easy, and, when using liquid flavor, loss of flavor while preserved can be prevented.
Patent CA-2073323-C (CA)
Title: Optical recording medium driving apparatus capable of accurately detecting position of optical head
Inventor: MATOBA HIROTSUGU
IPC: G11B7/007
Filed: 1992-07-07
Granted: 1997-04-15
Abstract: In an optical recording medium driving apparatus, only a high frequency component corresponding to pits of an ID portion of an optical disk track is detected from a total signal representing the total amount of reflectedlight by a high pass filter. With this high frequency component clamped so that a potential at a maximum point becomes a definite potential, a change in the amount of light represented by the total signal corresponding to pits is detected and a phase pit signal is generated. In response to this phase pit signal, a signal component corresponding to pits is removed from the total signal, thereby generating a pit removal signal.
Patent CA-2084045-C (CA)
Inventor: TAKAHASHI OSAMU
IPC: C03C17/25
Filed: 1992-11-27
Granted: 1996-07-30
Abstract: The invention relates to a metal oxide film formed on a glass substrate by a sol-gel process.  To make the metal oxide film minutely rough, at least two sols are respectively prepared from at least one compound selected from the group consisting of metal alkoxides and metal acetylacetonatos, such that polymers of the sols have different average molecular weights.  Then, the at least two sols are mixed with a solvent so as to prepare a coating solution. The coating solution is applied to the glass substrate so as to form thereon a sol film. The thus coated glass substrate is heated so as to transform the sol film into a gel film and to form thereon numerous micro-pits.
Patent CA-2084392-C (CA)
Title: Coloured cosmetic sticks of improved hardness
Inventor: SZWEDA JOHN A
IPC: A61K8/26
Filed: 1992-12-02
Granted: 1998-08-25
Abstract: A method is provided for producing a coloured cosmetic stick of reproducible hardness through utilizing a wax that has been treated with an alcohol to convert any naturally-occurring C12-C60 fatty acid into a respective ester.  This esterified wax is then mixed with an aluminum salt colorant and then formed into a stick.  There is also disclosed coloured cosmetic sticks produced through the aforementioned process.
Patent CA-2088364-C (CA)
Title: Optically controllable semiconductor laser
Inventor: SCHILLING MICHAEL
IPC: H04J14/02
Filed: 1992-05-26
Granted: 1999-06-15
Abstract: An optical device includes a semiconductor laser monolithically integrated on a substrate having a branched cavity extending above a plane that is coplanar with a base surface of the substrate, and an adjustable optical power light source for radiating light into the cavity of the semiconductor laser thereby controlling the operation of the semiconductor laser optically.
Patent CA-2090322-C (CA)
Inventor: HENNEUSE HENRY
IPC: E21B47/12
Filed: 1992-06-25
Granted: 2002-02-05
Abstract: Système de transmission d'informations entre au moins deux unités d'un ensemble de forage par l'intermédiaire d'un lien électrique situé le long de la garniture de forage. Selon l'inven- tion, le système permet une transmission pluridirectionnelle entre les unités.
Patent CA-2091741-C (CA)
Title: Polymethylaluminoxane of enhanced solution stability
Inventor: TRAN NAM H
IPC: C08G79/10
Filed: 1993-03-16
Granted: 2002-10-29
Abstract: Polymethylaluminoxane compositions having increased solution stability in organic solvent and, in some cases, increased polymerization activity, which comprise moieties derived from an organic compound containing an electron-rich heteroatom (e.g., from Group V and/or Group VI of the Periodic, Table) and a hydrocarbyl moiety. These compositions can be formed by reaction of trimethylaluminum, the organic compound, and water. They can also be formed by ruction of pre-formed polymethylaluminoxane the organic compound, which can be a hydrocarbyl group-containing compound containing an electron-rich heteroatom (e.g., oxygen, nitrogen, or sulfur), either-with or without an active hydrogen atom connected to the heteroatom. The organic compound, in some embodiments, has also been found to be effective in increasing the catalytic activity of modified polymethylaluminoxane which, in addition to methyl, contain C2 and higher alkyl groups for enhanced solution stability.
Patent CA-2093202-C (CA)
Title: Sterilant gas mixture
Inventor: DEGER HANS-MATTHIAS
IPC: A61L2/20
Filed: 1993-04-01
Granted: 2004-01-27
Abstract: A sterilant gas mixture is presented for cold-gas steri-lization, which comprises alkene oxide and 1,1,1,2,3,3,3-heptafluoropropane.     The sterilant gas mixture comprises from 12 to 22 mol % of ethylene oxide or propylene oxide and from 78 to 88 mol % of 1,1,1,2,3,3,3-heptafluoropropane.
Patent CA-2096248-C (CA)
Title: Apparatus for cutting to length continuously supplied strip material
Inventor: MOEHLENBROCK PETER
IPC: B26D1/08
Filed: 1992-09-14
Granted: 1998-02-03
Abstract: In an apparatus for cutting to length strip material, e.g. pastry strips or the like, which is continuously supplied to the apparatus, which is a knife positioned transversely to the strip material conveying direction and defining a cutting area, and a timed raisable and lowerable cutting mechanism cooperating with the knife, the cutting mechanism is a cutting band, whose length is greater than the cutting area and which is movable at right angles to the strip material conveying direction.
Patent CA-2099272-C (CA)
Inventor: COLLEY TERENCE
IPC: G01K11/06
Filed: 1991-10-28
Granted: 2002-09-17
Abstract: A marking element for indicating whether a pre-defined temperature condition has been maintained. The marking element (1) comprises a first material (8) capable of flowing above a pre-determined temperature separated from a second absorbent ma-terial (b) by a barrier layer (7). The first and second materials are such that when the barrier layer (7) is punctured and the prede-termined temperature is exceeded the first material (8) flows along the second material (6) to produce a detectable change.
Patent CA-2104773-C (CA)
Title: Card mark sensor and methods for blackjack
Inventor: LAUGHLIN DONALD J
IPC: A63F9/00
Filed: 1992-02-27
Granted: 1995-08-22
Abstract: A method and apparatus (10) for immediately electronically sensing when the dealer is dealt blackjack. Aces, face cards and tens have added indicia (220, 220', 221) detectable by an electronic sensor (110, 120, 120'). The sensor differentiates when the hole card (260) of the dealer creates blackjack.  When the hole card (260) creates blackjack for the dealer as determined by the sen-sor (110, 120, 120'), the dealer is immediately the winner without exposure of the down card (260), and the game moves to the next hand. If the sensor (110, 120, 120') does not indicate dealer blackjack, play continues without disclosure of the dealer's down card (260).
Patent CA-2105769-C (CA)
Title: Folder construction
Inventor: KOBER KASIMIR
IPC: D06F89/00
Filed: 1992-03-19
Granted: 1995-03-21
Abstract: A folder (10) for towels (1) and similarly-sized laundry pieces is provided which is adapted to form a variety of folds in a rapid manner whereby high production is assured. The provided folder (10) employs an air pervious surface (40) assuring a con-trolled, rolling folding of the article side panels (R, L) over an article central panel (C) without any air entrapment, thereby assur-ing precise folds, and attractive folded articles.
Patent CA-2107896-C (CA)
Title: Method and composition for treating hyperproliferative skin diseases using 6-aminopurine cytokinins
Inventor: BOLUND LARS
IPC: A61K31/52
Filed: 1991-05-16
Granted: 2002-07-30
Abstract: It has been discovered that 6-(substituted amino)purine cytokinins, such as kinetin, induce differentiation, and consequent-ly reduce or eliminate the abnormally high rate of proliferation, of hyperproliferating cells associated with hyperproliferative skin diseases, such as psoriasis. Thus, the present invention provides methods and compositions for treating hyperproliferative skin diseases in mammals, particularly such diseases associated with hyperproliferating epidermal cells in humans, by administering to the hyperproliferating cells associated with such a disease, in the skin of a mammal suffering therefrom, a differentiation-indu-cing effective amount of a 6-(substituted amino)purine cytokinin.
Patent CA-2108503-C (CA)
Inventor: BLASZYNSKI ROBERT H
IPC: E02F3/58
Filed: 1993-10-15
Granted: 1996-11-12
Abstract: A fairlead mechanism for guiding a dragline drag rope includes a support on the chassis of the dragline and a guide mechanism mounted on the support.  The guide mechanism includes at least one pair of guide sheaves each having an annular groove.          The guide sheaves are rotatably mounted on the support to present the grooves in facing relation to define between the sheaves a guide path through which the drag rope passes in primary frictional contact with at least one of the guide sheaves to cause the contacted guide sheave to start-stop cycle between rotating and nonrotating modes as the drag rope reciprocates during operation of the machine.  The fairlead mechanism further comprises a synchronizing mechanism utilizing gears or belts for causing the pair of guide sheaves to simultaneously stop or counterrotate in unison in response to rope contact with either one of the guide sheaves to minimize wear that would be induced by scrubbing between the rope and the guide sheaves.
Patent CA-2120503-C (CA)
Title: The regulation of systemic immune responses utilizing cytokines and antigens
Inventor: DRANOFF GLENN
IPC: C12R1/91
Filed: 1992-10-05
Granted: 2006-04-04
Abstract: A method of altering the specific, systemic immune response of an individual to a target antigen by the co-administration of a cytokine an adhesion or accessory molecule and the target antigen. The target antigen may be a tumor cell, a tumor cell antigen, an infectious agent or other foreign antigen, or other antigens to which an enhanced systemic immune response is desirable. Alternatively, the antigen may be a non-foreign antigen when a suppression of a systemic immune response is desired. The resulting systemic immune response is specific for the target antigen.
Patent CA-2124454-C (CA)
Title: Process for preparing ketone enantiomer
Inventor: QUALLICH GEORGE J
IPC: C07C309/73
Filed: 1992-09-15
Granted: 1997-08-26
Abstract: A novel multi-step process for preparing the (4S-enantiomer of 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone in a highly-optically pure form is disclosed. The process involves (1) first esterifying 4-(3,4-dichlorophenyl)-4-ketobutanoic acid with isopropylene or isobutylene to form the corresponding isopropyl or tert.-butyl 4-(3,4-dichlorophenyl)-4-ketobutanoate; (2) then reducing the ketobutanoic acid ester obtained in the first step with an asymmetric carbonyl reducing agent to form the corresponding chiral isopropyl or tert.-butyl 4-(3,4-dichlorophenyl)-(4R)-hydroxybutanoate; (3) then sulfonylating the (4R)-hydroxy-butanoic acid ester with methanesulfonyl, benzenesulfonyl or p-toluenesulfonyl chloride or bromide in the presence of a standard base to yield the corresponding isopropyl or tert.-butyl 4-(3,4-dichlorophenyl)-(4R)-sulfonyloxybutanoate; (4) next subjecting the 4-sulfonyloxybutanoic acid ester obtained in the third step to a copper-coupling reaction with dilithium diphenyl(cyano)cuprate of the formula .PHI.2Cu(CN)Li2 to effect a stereochemical displacement of the organic (4R)-sulfonyloxy group of the (4R)-sul-fonyloxybutanoic acid ester by the phenyl group of the dilithium diphenylcuprate reagent and so selectively form the corresponding isopropyl or tert.-butyl 4-(3,4-dichlorophenyl)-(4R)-phenylbutanoate, and (5) thereafter cyclizing the stereospecific (4R)-phenylated n-butanoic acid ester in the presence of a protic or Lewis acid catalyst to finally yield the desired (4S)-4-(3,4-dichlorophenyl)-3,4-dihydro-1(2H)-naphthalenone compound in a highly-optically pure form. The latter compound, which is a novel (4S)-enantiomer per se, has utility as an intermediate that ultimately leads to pure cis-(1S)(4S)N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthaleneamine (sertraline), which is a known antidepressant agent. The aforementioned isopropyl and tert.-butyl esters of 4-(3,4-dichlorophenyl)-(4R)-hydroxybutanoic acid, as well as their corresponding (4R)-methanesulfonyl, (4R)-benzenesulfonyl and (4R)-p-toluenesulfonyl derivatives, are also novel compounds, as are the aforementioned isopropyl and tert.-butyl esters of 4-(3,4-dichlorophenyl)-(4R)-phenylbutanoic acid as well as the aforesaid acid per se. These novel chiral compounds are all useful as key intermediates in the overall process of the present invention.
Patent CA-2125259-C (CA)
Inventor: GIORDANI ATTILIO
IPC: F16K5/06
Filed: 1994-06-06
Granted: 2000-01-18
Abstract: An improved zone valve is provided in which a motor-driven actuator assembly rotates a ball valve through about a 90° rotation, between a first, normal position, and an opposite position, e.g., between closed and opened positions.  The actuator assembly includes a torsional spring configured to be tightened as the ball valve is rotated by the motor from its normal position to the opposite position.  When the motor is de-energized, the spring provides a restoring torque that is sufficient to overcome the resisting frictional torque of the ball valve and inertia and friction of the de-energized motor, causing the drive shaft to rotate counter to the direction of rotation of the motor, thereby returning the valve to its normal position.  Preferably, the torsion spring is positioned so that, in the normal position, it is preloaded sufficiently to provide adequate restoring torque to overcome the frictional resistance of the valve.  The motor is coupled to the valve stem so that electrical energization of the motor rotates the ball valve through about a 90° rotation, i.e., from its normal position to the opposite position.
Patent CA-2125554-C (CA)
Title: Composite block & process for manufacturing
Inventor: RICHARDS DENIS C
IPC: C08L95/00
Filed: 1992-05-04
Granted: 2002-04-23
Abstract: A composite paving block formed from desired proportions of asphalt, plastic such as polyethylene or phenolic resin, elastomeric material such as rubber or polyvinylchloride, and fibre material such as nylon or rayon, is disclosed. Recycled or reclaimed materials such as reclaimed asphalt, recycled polyethylene bottles, and recycled tires may be used. The materials are heated and blended together into a relatively uniform mixture of composite material. The composite material is further heated and is then moulded into individual paving blocks, which exhibit a property of very high compressive strength.
Patent CA-2125665-C (CA)
Title: Medicaments
Inventor: AKEHURST RACHEL ANN
IPC: A61K31/58
Filed: 1992-12-04
Granted: 2001-06-12
Abstract: This invention relates to aerosol formulations of use for the administration of medicaments by inhalation, in particular a pharmaceutical aerosol formulation which comprises particulate medicament, a fluorocarbon or hydrogen-containing chloroflu-orocarbon propellant and up to 5 % w/w based upon propellant of a polar cosolvent, which formulation is substantially free of surfactant. A method of treating respiratory disorders which comprises administration by inhalation of an effective amount of a pharmaceutical aerosol formulation as defined is also described.
Patent CA-2133579-C (CA)
Title: Synergistic composition and process for selective weed control
Inventor: GUT HANS
IPC: A01N47/36
Filed: 1993-04-23
Granted: 2003-11-11
Abstract: Herbicidal composition comprising N-[2-(3,3,3-trifluoropropyl)-phenylsulfonyl)-N'-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-urea of formula (I) or agrochemically tolerated salts thereof, and a synergistic amount of one or more further herbicides.
Patent CA-2134239-C (CA)
Title: Pretargeting methods and compounds
Inventor: AXWORTHY DONALD B
IPC: A61K47/48
Filed: 1993-06-07
Granted: 2004-11-23
Abstract: Methods, compounds, compositions and kits that relate to pretargeted delivery of diagnostic and therapeutic agents are disclosed. In particular, methods for radiometal labeling of biotin and for improved radiohalogenation of biotin, as well as related compounds, are described. Also, clearing agents, anti-ligand-targeting moiety conjugates, target cell retention enhancing moieties and additional methods are discussed.
Patent CA-2135533-C (CA)
Inventor: FATEHI MOHAMMAD T
IPC: H01S3/083
Filed: 1994-11-10
Granted: 1999-10-05
Abstract: An all-optical flip-flop device is achieved by employing two optical amplifiers arranged so that they together operate in only one of two stable states at a given time. In a first stable state of operation, the first optical amplifier behaves as a laser having a first predetermined characteristic wavelength. The arrangement is switched to a second stable state of operation in which the second optical amplifier behaves as a laser having a second characteristic wavelength, where the first and second characteristic wavelengths are at least nominally different, when an optical signal pulse is received at the input of the first optical amplifier. The arrangement is switched back to the first stable state when an optical signal pulse is received at the input of the second optical amplifier.
Patent CA-2135809-C (CA)
Title: A method for detecting a fault of an optical-fiber gyro, and an apparatus for diagnosing a fault of the same
Inventor: KUMAGAI TATSUYA
IPC: G01C25/00
Filed: 1994-11-15
Granted: 2000-01-25
Abstract: A phase-modulated light stream is propagated through an optical-fiber sensing loop, from which a propagated light stream is obtained. The propagated light stream is converted to an electric signal, from which a fundamental-wave component and even-number harmonic-wave components for the phase-modulated signal are detected. In accordance with the changes of the fundamental- and even-number harmonic-wave components, a fault is detected. On the other hand, the electric signal may be integrated to provide an integrated signal. In accordance with the comparison between the integrated signal and a fault reference voltage, the fault may be detected.
Patent CA-2137529-C (CA)
Inventor: VICKERMAN RICHARD J
IPC: C09K23/00
Filed: 1994-12-07
Granted: 2008-08-05
Abstract: Salt compositions are disclosed which comprise: (A) at least one salt moiety derived from: A) at least one salt moiety derived from (A) (I) at least one high-molecular weight polycarboxylic acylating agent, said acylating agent (A)(I) having at least one hydrocarbyl substituent having an average of from about 20 to about 500 carbon atoms, and (A) (II) ammonia, at least one amine, at least one alkali or alkaline earth metal, and/or at least one alkali or alkaline earth metal compound; (B) at least one salt moiety derived from (B)(I) at least one low-molecular weight polycarboxylic acylating agent, said acylating agent (B) (I) optionally having at least one hydrocarbyl substituent having an average of up to about 18 carbon atoms, and (B) (II) ammonia, at least one amine, at least one alkali or alkaline earth metal, and/or at least one alkali or alkaline earth metal compound; said components (A) and (B) being coupled together by (C) at least one compound having (i) two or more primary amino groups, (ii) two or more secondary amino groups, (iii) at least one primary amino group and at least one secondary amino group, (iv) at least two hydroxyl groups or (v) at least one primary or secondary amino group and at least one hydroxyl group; provided that the ratio of (B)(I) to (A) (I) is greater than 2:1. These salt compositions are useful as emulsifiers in oil-in-water emulsions useful as functional fluids.
Patent CA-2143196-C (CA)
Title: Seismic airgun arrangement
Inventor: LANDRO MARTIN
IPC: G01V1/387
Filed: 1993-08-23
Granted: 2002-02-19
Abstract: Seismic airgun arrangement for attenuating unwanted oscillations in the emitted signal, whereby the airgun has one or more outlet ports for exhausting air in a generally radial direction from a central axis of the airgun, and whereby a perforated screen of plate material is provided around the airgun for the attenuation mentioned. The volume which is generally delimited within the screen is significantly smaller than the maximum bubble size which is normally generated by the airgun. The screen has an open side or end at a part of the screen being adapted to face at least partially downwards in the normal operative position of the airgun. At least edge portions of the screen along the open side or end are located substantially directly opposite the outlet port or ports.
Patent CA-2144116-C (CA)
Title: O-ring seal for rock bit bearings
Inventor: DENTON ROBERT
IPC: E21B10/22
Filed: 1995-03-07
Granted: 1998-07-14
Abstract: An improved O-ring seal for rock bit bearings comprises a body formed from a resilient elastomeric composition and a modified surface comprising a permanent surface enhancing material integral with the body. The surface comprises a layer of surface enhancing material that encapsulates and is molecularly bonded to an underlying surface of an elastomeric seal body. The surface enhancing material selected may include metal disulfides, fluoropolymers, ethylene polymers, silicone polymers, and urethane polymers. The O-ring surface displays enhanced properties of reduced break-off friction, increased lubricity and wettablity, and increased thermal resistance. These enhanced surface properties serve to minimize stick-slip and material loss from the O-ring surface resulting from stick-slip, thereby increasing the service life of the O-ring seal and rock bit