baber/WOPTO huggingface dataset:
Patent CA-2087804-C (CA)
Title: Method of making a coated abrasive article
Inventor: MASMAR CRAIG ALAN
IPC: B29C70/64
Filed: 1993-01-21
Granted: 2003-08-19
Abstract: A method of preparing a coated abrasive article in Which the presence of multiple layers of abrasive grains are minimized. In one variation, the method comprises the steps of: (a) providing a backing; (b) applying a make coat precursor to the backing; (c) partially curing the make coat precursor; (d) applying, preferably by projecting, a plurality of abrasive grains into the partially cured make coat precursor; and (e) completely curing the partially cured make coat precursor. In another variation of this method, a size coat precursor is applied over the abrasive grains and cured make coat, and the size coat precursor is completely cured. In another variation of this method, a size coat precursor is applied over the abrasive grains and the partially cured make coat precursor, and the make coat precursor and the size coat precursor are completely cured. The make coat precursor preferably comprises an unsaturated resin that polymerizes via a free radical polymerization mechanism at the site of .alpha.,.beta.-unsaturation.
Patent CA-2089038-C (CA)
Title: Method of manufacturing an anchor element from a strand of twisted steel wire
Inventor: HERBST THOMAS
IPC: E04C5/12
Filed: 1993-02-08
Granted: 1999-09-07
Abstract: ABSTRACT OF THE DISCLOSURE A method and an arrangement for manufacturing an anchor element from a strand of steel wires by spreading outer wires of the strand apart from the central wire of the strand to form expanded sections. For spreading apart the outer wires, the strand is axially advanced through a rotatably mounted spreading disc provided with a number of openings corresponding to the number of wires, wherein each individual wire is passed through one of the openings. Following the spreading disc in advancing direction, spacer elements are mounted between the spread apart outer wires for fixing the outer wires in the spread apart position and forming the expanded sections. The spacer elements can be mounted in a continuous operation independently of the length of the strand and independently of whether the expanded sections ought to be provided over the entire length, or only a part of the length, of the anchor element.
Patent CA-2089267-C (CA)
Title: Direct fabrication
Inventor: BLATZ PHILIP STRUBING
IPC: B29C48/67
Filed: 1991-08-15
Granted: 2002-01-29
Abstract: Melt fabrication, with precompounding, of a plurality of thermoplastic resins, in provided by use of a screw  (12) having a dispersion section (18) in such machines as injection molding machines. The minor resin component can be an elastomer which toughens the resin's major component. This effect is improved by increasing back pressure on the screw (18) used in the injection molding machine (2), to extend the screw rotation and thus shear time accomplished by the dispersion section (18).
Patent CA-2095642-C (CA)
Inventor: KRIVAN HOWARD C
IPC: C07K19/00
Filed: 1991-07-29
Granted: 1999-12-14
Abstract: Disclosed herein are receptors for pathogenic or opportunistic microorganisms, methods of obtaining such receptors, and methods of using such receptors for diagnostic or pharmaceutical purposes. The receptor comprises a substantially pure compound selected from the group consisting of GalB1-4GlcNAcB1-3GalB1-4GlcB1-1-X(R), GalB1-3GlcNAcB1-3GalB1-4GlcB1-1-X(R); GlcNAcB1-3GalB1-4GlcB1-1-X(R), GalB14GlcNAcB1-3GalB1-4Glc, GalB1-3GlcNAcB1-3GalB1-4Glc, GlcNAcB1-3GalB1-4Glc, GalB1-4GlcNAcB1-3Gal, and GalB1-3-GlcNAcB1-3Gal wherein X is sphingosine, hydroxylated sphingosine, or saturated sphingosine and R is H or an N-acyl fatty acid derivative of X such that X(R) is a ceramide. The invention further comprises proteins and polypeptides that bind to the receptors, methods of obtaining such proteins or polypeptides from natural sources or through recombinant DNA techniques, and methods of using the purified proteins and polypeptides for pharmaceutical and diagnostic purposes, preferably in a vaccine for administration to an animal or human host to protect against pathogenic or opportunistic microorganisms.
Patent CA-2101281-C (CA)
Inventor: SHIRAGAMI HIROSHI
IPC: C07H19/04
Filed: 1993-07-26
Granted: 2003-11-04
Abstract: A crude 2',3'-dideoxynucleoside compound is purified by extracting with an organic solvent, or crystallizing, the 2',3'-dideoxynucleoside compound from a basic aqueous solution having a pH of not less than 12 containing the same. In another embodiment of purification a basic aqueous solution having a pH of not less than 11 of a crude 2',3'-dideoxynucleoside derivative is brought into contact with a nonpolar porous resin, whereby the derivative is adsorbed on the resin, and then the thus adsorbed derivative is desorbed with an aqueous alcoholic solution. 2',3'-Dideoxynucleoside compounds which have utility as anti-AIDS drugs or anti-virus drugs can be isolated and purified in high purity and in high yield from their crude products containing impurities.
Patent CA-2115401-C (CA)
Inventor: WINTRICH FRANZ
IPC: F23M11/04
Filed: 1994-02-10
Granted: 1999-04-06
Abstract: The present invention relates to a method for determination of characteristic features of processes forming radicals by sensing the temperature and/or the concentration of radicals with detectors in zones that are monitored by at least2 detectors.
Patent CA-2119172-C (CA)
Inventor: STEPHENS WILLIAM D
IPC: B29C33/64
Filed: 1994-03-16
Granted: 1998-02-03
Abstract: An aqueous reaction mixture having a pH of 4.5 to 5.5 of a multi-functional polydimethyl siloxane emulsified polymer, a methyl triethoxy silane, a mixture of substituted nonyl and octyl phenol derivative   surfactants,   non-ionic  fluorinated  alkyl  ester surfactant and synthetic ethoxylated amine surfactants, a silanol terminated polydimethyl siloxane and ethanol.  The reaction mixture is coated on a mold core surface and cured with heat to form a mold release surface that can be used in excess of twenty times prior to recoating.
Patent CA-2119446-C (CA)
Title: A catalyst system for combining hydrotreating and hydrocracking and a process for upgrading hydrocarbonaceous feedstocks
Inventor: HABIB MOHAMMAD M
IPC: C10G65/12
Filed: 1993-04-09
Granted: 2004-12-21
Abstract: A physically intermixed catalyst system comprising two distinctly different catalytic particles, the first of which is a hydrodenitrification and/or hydrodesulfurization catalyst and the second of which is a relatively active hydrocracking catalyst, wherein the catalyst particles of both catalytic components are substantially the same size, that is the effective diameter of each catalyst component is substantially the same. The catalyst system of the present invention can be layered with unmixed catalysts.   The novel systems of the present invention have been found to provide surprisingly good selectivity for liquid products and stability against catalyst fouling when used in combined hydrotreating and hydrocracking applications, and can therefore be used to provide a stable catalyst system which offers even heat distribution and reactor control in such applications.
Patent CA-2119922-C (CA)
Inventor: ABBEMA WILLIAM D
IPC: F16L21/02
Filed: 1994-03-23
Granted: 2005-08-02
Abstract: A coupled pipe assembly having a pair of opposed, axially-positioned pipes each having opposed beveled ends and interior corrosion-resistant linings. A sleeve having heat-deflecting material is provided axially within the pipes with the heat-deflecting material being positioned adjacent the opposed pipe ends to protect the corrosion-resistant linings from heat damage during welding of the pipe ends. The sleeve has a tapered cross-section extending to and forming a rounded end edge portion.
Patent CA-2120364-C (CA)
Title: Method of removing volatile organic compounds from water
Inventor: CHUANG KARL T
IPC: C02F1/20
Filed: 1992-09-29
Granted: 2002-12-17
Abstract: A process for removing volatile organic compounds such as methanol from wastewater comprising first stripping the organic compound from water and then oxidizing the organic compound in the gaseous phase using a hydrophobic catalyst, to form harmless reaction products.
Patent CA-2120788-C (CA)
Inventor: GIEN BERNARD LIONEL
IPC: E21B17/10
Filed: 1994-04-07
Granted: 1999-03-30
Abstract: The invention concerns a shock absorber for use with a borehole drill string and which is to take rotational load and absorb axial shock loading, the absorber consisting essentially of a pair of oppositely disposed components adapted for connection into a drill string and positioned on opposite sides of a resilient member the latter held between rigid rings around and separate from the components each ring secured to the component on the opposite side of the member.
Patent CA-2123314-C (CA)
Inventor: BAKER ROSS G JR
IPC: A61N1/32
Filed: 1992-11-18
Granted: 2002-08-20
Abstract: Improvements are dis-closed in apparatus and tech-niques for activating an im-plantable medical device (10), such as a neurostimula-tor adapted to treat and con-trol a disorder of a patient (30) where the disorder is sus-ceptible to relief in response to predetermined modulation of the electrical activity of a selected nerve (25) or group of nerves of the patient. The neurostimulator (10) includes a stimulus generator respon-sive, when activated, to gen-erate a programmable electri-cal waveform, and an elec-trode array electrically con-nected to the stimulus genera-tor for delivering the wave-form to a selected nerve of the patient, such as the vague nerve. The neurostimulator is also adapted to be programmed to provide the waveform with parameter values selected to stimulate the selected nerve to produce the predetermined modulation of the nerve's electrical activity. The neurostimulator is implemented to respond to a patient initiat-ed signal which may be derived either manually or automatically to selectively activate the stimulus generator.
Patent CA-2129860-C (CA)
Inventor: ASCIONE JEAN MARC
IPC: A61K8/21
Filed: 1994-08-10
Granted: 2008-06-03
Abstract: L'invention concerne une composition de dentifrice contenant dans un milieu anhydre à base de glycérine, au moins une hydroxyéthylcellulose ayant au moins une chaîne hydrophobe et au moins une silice pyrogénée comprenant des particules primaires dont la taille moyenne est inférieure à 40 nm. La composition selon l'invention est utile pour l'hygiène bucco-dentaire et présente l'avantage de permettre l'introduction d'actifs peu ou pas stables en milieu aqueux.
Patent CA-2130607-C (CA)
Title: Arc-quenching compositions for high voltage current limiting fuses and circuit interrupters
Inventor: SMITH JAMES DAVID BLACKHALL
IPC: H01H85/42
Filed: 1994-08-22
Granted: 2004-06-22
Abstract: The invention is directed to an arc-quenching coating compositions having effective arc-quenching properties and improved track resistance properties that are relatively easy to apply and operationally positioned in high voltage current limiting fuses or expulsion fuses, circuit breakers, circuit interrupters, separable cable connectors, or the like. The arc-quenching coating composition comprises an arc-quenching material (A) and a film-forming polymer (B) having minimal tracking properties, wherein the film-forming polymer (B) acts as a liquid vehicle for the coating composition. The arc-quenching material (A) is preferably selected from the group of guanidine, guanidine carbonate, guanidine acetate, 1,3-diphenylguanidine, guanine, melamine, melamine cyanurate, urea, hydantoin, allantoin and derivatives and mixtures thereof. The film-forming polymer (B) is preferably selected from the group of urethane, acrylic, melamine-formaldehyde and derivatives and mixtures thereof. The invention is also directed to an arc-quenching composition having effective arc-extinguishing properties, and improved non-tracking properties and thermal stability selected from the group of guanidine carbonate, guanidine acetate, 1,3-diphenyl-guanidine, guanine, melamine cyanurate, urea, hydantoin and allantoin.
Patent CA-2137691-C (CA)
Title: Artificial joint with a hydraulic damping cylinder
Inventor: GRAMNAS FINN
IPC: A61F2/68
Filed: 1993-06-09
Granted: 2004-04-27
Abstract: A device for damping of the turning movement of a joint, for example an artificial knee joint (10), is designed in such a way that the shaft (21) of one of the pivot points of the joint is provided with a gear-wheel (30) which in a hydraulic cylinder (1) influences a piston (27) connected to a rack-gearing (28). Channels (40, 41) with chokes and back valves (71, 91; 72, 92; 75, 93) connect the two sides of the piston of the hydraulic cylinder making possible adjustable damping in several steps for different parts of the turning movement. Moreover, a compact design of joint and damping cylinder is achieved. The application also ref-ers to artificial joints including abovementioned devices for damping of the turning movement, especially artificial knee joints of the polycentric type with seven pivot points.
Patent CA-2140423-C (CA)
Inventor: MCNAUGHTON JAMES
IPC: F16L33/207
Filed: 1995-01-17
Granted: 2000-01-11
Abstract: A quick connector for forming a joint in a fluid line consists of a female connector body having a bore which receives a male member. A sleeve surrounds and is secured on the male member in close fitting relation with the male member and with the female connector body. A retainer extends between the sleeve and a radial face formed in the connector body to secure the male member in the connector body. A secondary retainer provides enhanced retention capability. An optional plug may be positioned in the bore entrance to prevent introduction of external contaminants.
Patent CA-2144949-C (CA)
Inventor: WATTS CLAUDE
IPC: C04B35/63
Filed: 1993-09-13
Granted: 2004-11-30
Abstract: An improved refractory investment material for use in making refractory molds is provided. The material comprises an investment powder including a binder, a refractory selected from calcined mullite and pyrophyllite, additives for controlling setting and about .01 to about .04 % by weight of a sulfate salt. The investment powder is formed into a slurry with a solution of a water based colloidal silica in an amount providing about 3 % to about 6 % by weight colloidal silica based on the weight of the water and a chloride salt in an amount of at least about 0.5 % by weight based on the weight of said investment powder.
Patent CA-2145721-C (CA)
Inventor: MOTLEY JERRY D
IPC: F42B3/188
Filed: 1995-03-28
Granted: 2000-02-01
Abstract: A detonator comprising a case into which is inserted a quantity of an explosive charge, a semiconductor bridge positioned adjacent one end of the explosive charge which is electrically connected to a spark gap and in some embodiments a capacitor and a bleeder resistor. A pair of electrically conductive wires are connected to the spark gap and semiconductor bridge to provide a means for passing an electrical charge to the semiconductor bridge. The detonator also may include an r~ attenuator, such as a ferrite bead, through which the electrically conductive wires pass. The ends of the detonator case are sealed by any appropriate means.
Patent CA-2151219-C (CA)
Inventor: NAKADA TETSUYA
IPC: A23L27/00
Filed: 1995-06-07
Granted: 2008-12-02
Abstract: Disclosed are novel thermostable non-reducing saccharides-forming enzyme, its preparation and uses. The enzyme is obtainable from the culture of microorganisms such as Sulfolobus acidocaldarius (ATCC 33909 and ATCC 49426) and Sulfolobus solfataricus (ATCC 35091 and ATCC 35092), and capable of forming non-reducing saccharides having a trehalose structure as an end unit when allowed to act on reducing partial starch hydrolysates at a temperature of over 55°C. Glucoamylase and .alpha.--glucosidase readily yield trehalose when allowed to act on the non-reducing saccharides. These non-reducing saccharides and trehalose are extensively useful in food products, cosmetics and pharmaceuticals.
Patent CA-2158137-C (CA)
Title: Therapeutic compositions containing a lithium compound and silica
Inventor: BIRCHALL JAMES DEREK
IPC: A61P17/00
Filed: 1994-03-11
Granted: 2004-03-02
Abstract: A therapeutic composition for the treatment of virus-induced cutaneous infections comprises a first material for blocking viral DNA replication and a second finely divided material which absorbs exudated fluid from vesicles. Preferred compositions comprise a lithium compound (as the material for blocking viral DNA replication) and silica (as the material for absorbing exudated fluid from vesicles). An example of composition in accordance with the invention comprises a lithium compound dissolved or suspended in an aqueous silica salt.
Patent CA-2162877-C (CA)
Title: Monohydrate dextrose or glucose composition
Inventor: HAMILTON DONALD SINCLAIR
IPC: A23L33/15
Filed: 1994-05-10
Granted: 2004-04-13
Abstract: A composition for the treatment of a hangover in a human being, consisting o f a composition including: a major proportion of monohydrate dextrose or glucose in combination with the following compounds: 0.5% - 2% by weight ascorbic acid; a non-toxic potassium salt in a homeopathic titration to the 6 C potency or up to 0.4% by weight; a non-toxic magnesium salt in a homeopathic titration to the 6 C potency or up to 0.4% by weight; 0.0001% - 25% by weight vitamin B6; zin c oxide in a homeopathic titration to the 6 C potency or up to 0.07% by weight.
Patent CA-2165521-C (CA)
Inventor: DE LACHARRIERE OLIVIER
IPC: A61K38/08
Filed: 1995-12-18
Granted: 2002-07-16
Abstract: L'invention se rapporte à une composition thérapeutique à application topiqu e contenant au moins un produit à effet secondaire irritant et un antagoniste de substance P pour diminuer voire éliminer l'effet irritant de ce produit.  Elle se rapporte aussi à l'utilisation d'un antagoniste de substance P pour la préparation d'une composition pharmaceutique à application topique contenant au moins un produit à effet secondaire irritant pour diminuer voire éliminer  l'effet irritant de ce produit.  L'antagoniste de substance P peut être un composé peptidique ou un composé azoté ou un composé hétérocyclique azoté, soufré ou oxygéné.
Patent CA-2166334-C (CA)
Inventor: KERKLAAN ALBERT JOHN
IPC: H04B10/11
Filed: 1995-12-29
Granted: 2001-12-25
Abstract: An infrared transceiver for use with a computer in a wireless Local Area Network.   The transceiver comprises a light emitting diode array and photodiodes.  The transceiver is operable in a diffused beam arrangement and a directed beam arrangement.  The transceiver is converted to directed beam operation by attaching a user installable columnator. The columnator redirects the beams into parallel beams, and the direction of the parallel beams is controlled through an adjustable tilt stand.   The columnator is detachable for converting back to diffused beam operation.
Patent CA-2175782-C (CA)
Inventor: WILCOX SCOTT ROBERT
IPC: H04W88/02
Filed: 1996-05-03
Granted: 1999-09-07
Abstract: A radiotelephone (100) has a hinge (301) for joining a body (101) a cover (103) along an axis. The hinge (301) contains the axial force generated by an urging mechanism (403,404,405) by locating the urging mechanism (403,404,405) in a can (303) and attaching a cap (305) to the can (303).
Patent CA-2175861-C (CA)
Title: Power control method and apparatus suitable for use in a radio communication device
Inventor: JANSSEN JOHN JEROME
IPC: G01R31/36
Filed: 1996-05-06
Granted: 2000-02-01
Abstract: A portable radio communication device (303) includes power control circuitry (315) for monitoring the voltage level incoming from a battery (317), and provides power to the rest of the radio communication device (303). The power control circuitry (315) includes a boost regulator (407) that is used to generate an internal reference signal for use throughout the radio communication device including an analog to digital converter (ADC) for digitizing the battery voltage for use by the power control circuitry (315). The power control circuitry (315) compares the digitized battery voltage to thresholds to control power to the remainder of the radio communication device (303). Additionally, a secondary comparator (413) is provided to prevent damage to the battery and radio communication device circuitry. The secondary comparator uses multiple undervoltage thresholds depending upon the power state of the radio communication device (303).
Patent CA-2176071-C (CA)
Inventor: MOREAU JACQUES
IPC: B23C5/16
Filed: 1996-05-08
Granted: 2005-08-23
Abstract: The tool has at least one tooth (20) projecting at a distance from its axis of rotation, and a counter-tooth (30) in front of it to act as a breaker for the chippings produced during milling. The countertooth is in the shape of a flange lying parallel to the front face (22) of the tooth, and has an outer edge of similar height to the tooth or slightly below it. The counter-tooth has an aperture (34) through it and is set at a distance of between 2.5 and 3.5 mm from the milling tooth. The tooth's outer edge is curved in shape, with a semi-circular central section, and the hole in the counter-tooth is circular and has a diameter of 5.5 mm in the flange's rear face.
Patent CA-2176205-C (CA)
Inventor: DAMIEN CHRISTOPHER J
IPC: C07K14/51
Filed: 1994-11-15
Granted: 2001-09-11
Abstract: L'invention se rapporte à un produit comprenant du carbonate de calcium ainsi qu'un facteur de croissance osseuse, servant à favoriser une formation osseuse lorsqu'on l'implante dans le corps (voir figure 3). De préférence, le carbonate de calcium est sous la forme d'aragonite que l'on peut recouvrir de corail d'origine naturelle. Un facteur de croissance osseuse préféré selon la présente invention est un mélange de protéines purifiées provenant d'os. L'invention se rapporte également à un procédé permettant d'induire la formation osseuse, ce procédé comprenant l'implantation du produit dans un corps. Le produit et le procédé de la présente invention sont particulièrement utiles dans des opérations de remplacement de la hanche et du genou, dans l'arthrodèse, dans la réfection d'anomalies périodontiques, dans le traitement de l'ostéoporose, dans la réfection des anomalies causées par une tumeur osseuse, ainsi que dans la réduction des fractures osseuses.
Patent CA-2178527-C (CA)
Inventor: PLAVSKIH VLADIMIR DMITRIEVICH
IPC: E21B4/14
Filed: 1996-06-07
Granted: 2001-10-23
Abstract: The present invention relates to building and to mining, more particularly to an apparatus for impact action designed for trenchless laying of new underground communications and for reconstruction of existing communications, the apparatus comprising a body, a striker with a through central channel, the striker positioned inside the aforesaid body with the possibility of performing reciprocal movement, a front chamber formed between the aforesaid body and aforesaid striker, a rear chamber formed between the aforesaid body and the aforesaid striker, an air distribution system comprising channels for the inlet of compressed air into the aforesaid chambers and channels for the exhaust of spent air from the aforesaid chambers, an air conduit, and in which in accordance with the invention the aforesaid air distribution system is provided autonomously for each of the aforesaid chambers.