baber/WOPTO huggingface dataset:
Patent CA-2210460-A1 (CA)
Title: Protective covers with impenetrable seams
Inventor: MASLEY FRANCIS J
IPC: A41D13/00
Filed: 1996-02-27
Abstract: The present invention is an improved protective cover for use in protecting a wearer against liquid contact, even under highly demanding conditions. The present invention identifies previously ignored voids in seams as a chief cause of failure in protective garments and other covers in shielding against air, liquid or virus penetration over an extended period of time. By sealing the seams with adhesive so as to fully encapsulate fibers therein and reduce void size to less than 10 microns, the risk leakage through the cover is dramatically reduced.
Patent CA-2215211-A1 (CA)
Inventor: FUKUDA TSUNEHIKO
IPC: A61K38/00
Filed: 1996-03-29
Abstract: Composition pharmaceutique inhibitrice de la cystéine protéase, renfermant un composé de la formule (I). Dans cette formule R?1¿ est un atome d'hydrogène ou un groupe acyle; R?2¿, R?3¿ et R?4¿, sont identiques ou différents et représentent une liaison, un résidu acide aminé ou un groupe de la formule: -Y-R?5¿-, dans lequel R?5¿ est un groupe résultant de l'extraction d'un groupe imino d'un résidu acide aminé; Y est -O-, -S- ou -NR?6¿-, dans lequel R?6¿ est un atome d'hydrogène ou un groupe alkyle inférieur; A est (a) ou (b); Z est un atome d'hydrogène, un groupe acyle ou un groupe hydrocarbure facultativement substitué; n est 1 ou 2; à condition que lorsque n est égal à 1, A est (a) et Y est -S- ou -NR?6¿- et au moins un des éléments R?2¿, R?3¿ et R?4¿ correspond à la formule -Y-R?5¿-, à condition que lorsque tous les Y composés sont -NR?6¿-, au moins un des résidus acides aminés n'est pas lié à un atome d'hydrogène au niveau du carbone .alpha. de celui mais substitué un carbone; à condition que, lorsque n est 2 et Z est un groupe aldéhyde, R?1¿ est un groupe acyle comportant 6 atomes de carbone ou plus; à condition que lorsque n est égal à 2 et A est (a) au moins l'un des éléments R?2¿, R?3¿ et R?4¿ correspond à la formule -Y-R?5¿-; l'invention concerne un ester ou un sel de ce cette composition, et un excipient pharmaceutiquement acceptable.
Patent CA-2215218-A1 (CA)
Inventor: KATO YASUSHI
IPC: F24J3/00
Filed: 1997-09-25
Abstract: According to the present invention, when an air-conditioning clutch of a compressor is set on, even if an improvement of a heating capacity by a viscous heater is required, a viscous clutch is turned off not to transmit a rotational driving force of an engine to a rotor of the viscous heater, and further the rotational driving force of the engine is transmitted to the compressor. In this way, a torque applied to the engine E and the V-belt can be reduced, so that a fuel consumption ratio of the engine lowers and a fuel economical performance improves. Further, because an operation of the compressor is intermitted, it is possible to remove a fog of a front windshield, so that a safety of the vehicle travelling can be prevented from being deteriorated.
Patent CA-2217880-A1 (CA)
Title: Synthesis of optically active aminoindanol
Inventor: NUEBLING CHRISTOPH
IPC: C07C213/08
Filed: 1996-05-07
Abstract: A process for preparing enantiomerically pure cis-1-amino-2-hydroxyindan, which comprises a) converting racemic trans-1-aminoindan-2-ol with acids or acid derivatives of the general formula RCOX by conventional methods into amides of type A      where the substituents have the following meanings: R is hydrogen, C1-C6-alkyl, C3-C6-cycloalkyl and phenyl, it being possible for these groups to carry one to three halogen atoms and/or one to three of the following radicals: cyano, C1-C6-alkoxy, C1-C6-alkylthio, phenyl, phenylthio and phenoxy, it being possible for the phenyl radicals in turn to carry one to three of the following groups: C1-C4-alkyl, C1-C4-alkoxy, halogen, cyano and nitro, X is OH, halogen, OR1 and SR1, where R1 is C1-C6-alkyl, phenyl and COR, b) adding seed crystals of one enantiomer to a supersaturated solution or melt of the racemic amide A, c) isolating the crystals which have separated out, and again supersaturating the remaining mother liquor or melt after dissolving racemic amide A, and adding seed crystals of the other enantiomer, leading to selective crystallization of the latter, d) converting the resulting enantiomerically pure traps amide by conventional methods into the enantiomerically pure cis-1-amino-2-hydroxyindan.
Patent CA-2218488-A1 (CA)
Title: Method for quantitative determination of 1,5-anhydroglucitol
Inventor: TAZOE SAKAE
IPC: C12Q1/34
Filed: 1997-02-19
Abstract: The present invention relates to a method for quantitative determination of l, 5-anhydroglucitol in a sample, which comprises mixing the sample and an enzyme having activity that is inhibited by 1, 5-anhydroglucitol in a concentration-dependent manner, and measuring the activity of the enzyme; and a reagent for quantitative determination of l, 5-anhydroglucitol which comprises an enzyme having activity that is inhibited by 1, 5-anhydroglucitol in a concentration-dependent manner, a substrate for the enzyme, and a reagent for quantitative determination of a product formed by the enzyme activity. The present invention also relates to novel trehalase having a Ki value of 0.33 mM or less for 1, 5-anhydroglucitol; and a process for producing novel trehalase having the above-mentioned physicochemical properties, which comprises culturing in a medium a microorganism belonging to the genus Nocardia and capable of producing the trehalase, and recovering the trehalase from the culture.
Patent CA-2220997-A1 (CA)
Title: Adenovirus vectors for gene therapy
Inventor: RUDNICKI MICHAEL A
IPC: A61K35/76
Filed: 1996-06-07
Abstract: This invention provides a method for making adenovirus cloning vectors which contain a recombinase target site that is useful for the insertion of selected foreign proteins.
Patent CA-2221371-A1 (CA)
Inventor: LEE WOO HYUNG
IPC: H04L27/20
Filed: 1997-11-18
Abstract: A constant envelope quadrature-quadrature amplitude modulation system is directed to solve the problem that the amplitudes of output signals change according to output data in the conventional Q2AM system, implementing the constant envelope characteristic for the non-linear communication system. The present invention limits the data, which will be transmitted, to 4-bit and adds 4-bit parity to make them have the constant envelope in the Q2AM system, which modulates 8-bit in the unit of 2-bit, and includes: a constant envelope encoder for adding 4-bit parity to 4-bit input information; four mappers 12 to 15 for respectively generating level signals corresponding to data values of 2-bit among 8-bit data generated by the constant envelope encoder 52; four mixers 16 to 19 for respectively mixing the level signals generated by the four mappers 12 to 15 with different predetermined frequency signals; and adder 20 for adding up the signals generated by the four mixers 16 to 19.
Patent CA-2222017-A1 (CA)
Title: Blends and alloys of polycyclic polymers
Inventor: SOBY LYNN M
IPC: C08F232/08
Filed: 1996-05-20
Abstract: Polycyclic addition polymers derived from norborene-type monomers are mixed with a variety of other polymers to generate families of new blends, alloys, and block copolymers.
Patent CA-2222451-A1 (CA)
Title: Laminated composite reinforcing bar and method of manufacture
Inventor: PETRINA PETRU
IPC: E04C5/12
Filed: 1996-05-30
Abstract: The invention presents a non-metallic laminated composite reinforcing rod for use in reinforced or prestressed concrete. The rod is made by creating a sheet of core material (1) comprising a number of layers of "pre-preg" material.  Ribs (2) are formed on top of the core from additional layers of pre-preg material laid with the fibers transverse to those in the core. The ribs (2) are then covered by additional layers of pre-preg (3) laid with fibers parallel to the core fibers. The material is heated to fuse the layers.  Finally, the sheets of laminated reinforcement are cut parallel to the core fibers to the width desired. The resulting reinforcing rod (62) is superior to steel in corrosion resistance, flexibility, durability, and strength. The reinforcing rod (62) may be used as a prestressing tendon in prestressed concrete after encasing the ends of the rod in an attachment formed of a sleeve (60) filled with grouting material (63) such as mortar or epoxy. The glass-fiber embodiment is non-conductive. If carbon pre-preg made of high modulus fibers is used, then the Young modulus of the LCRs is approximately equal to that of steel.
Patent CA-2222684-A1 (CA)
Inventor: STEIN PER
IPC: H04B1/3827
Filed: 1996-05-31
Abstract: A modular telecommunication system for an electronic audio system being specially configured for wireless telecommunication in accordance with a pre-selected standard.  Modular units are adapted to be secured within AM/FM radios, tape players, automobiles, and the like, for establishing a telecommunications link with a wireless network. The modular unit comprises a housing for mounting a telecommunications transceiver in the particular item of electronic audio systems, and a microphone or keyboard is provided for generating user communication signals. In this manner, electronic equipment may be purchased for its conventional, non-telecommunications use such as entertainment or commercial monitoring with the added flexibility of wireless telecommunications. An electronic audio system having conventional audio components is modified for utilizing a telecommunications module containing a transceiver. A  microphone and keypad are added to the electronic audio equipment for utilizing the functions of the telecommunications module.
Patent CA-2223940-A1 (CA)
Title: Macrophage activating factors derived from cloned vitamin d binding protein
Inventor: YAMAMOTO NOBUTO
IPC: C12N15/12
Filed: 1996-06-05
Abstract: Vitamin D-binding protein (Gc protein) and its small domain (approximately 1/5 of the Gc peptide also known as domain III) were cloned via a baculovirus vector. The cloned Gc protein and the cloned domain (Cd) peptide were treated with immobilized .beta.-galactosidase and sialidase to yield macrophage activating factors, GcMAFc and CdMAF, respectively. These cloned macrophage activating factors and GcMAF may be used for therapy of cancer, HIV-infection and osteoporosis, and may also be used as an adjuvant for immunization and vaccination. Methods and an antibody-sandwich ELISA kit were developed to detect serum or plasma .alpha.-N-acetylgalactosaminidase in cancer and HIV-infected patients.
Patent CA-2225096-A1 (CA)
Title: Method of applying drug-release coatings
Inventor: DING NI
IPC: A61F2/82
Filed: 1997-12-18
Abstract: The invention is directed to a method of applying drug-release coatings whereby a polymer can be dissolved in a first solvent (solvent A) to form a polymer system and a drug can be dissolved or suspended in a second solvent (solvent B) to form a drug system.  The coating or layer of coating so formed comprises a substantially uniform combination of the drug and polymer.  Solvent B can be the same as or different than solvent A.  The coating can be applied on a stent body by separately spraying or dipping the polymer system and the drug system onto the devices.  The coating can be accomplished by either applying the polymer and drug systems sequentially or simultaneously.  In certain embodiments, a drug can be suspended in solvent B.  In some cases, three or more systems can be utilized.  For instance, a third system containing pure solvent A or B can smooth the coating surface, if the solvent of the third spraying system is compatible with the polymer matrix.
Patent CA-2225379-A1 (CA)
Inventor: OUSTRIC DIDIER
IPC: C07D209/08
Filed: 1996-06-20
Abstract: L'invention a pour objet l'utilisation des agonistes spécifiques du récepteur CB¿2? humain pour la préparation de médicaments immunomodulateurs de formules (I) ou (I'), dans lesquelles: R¿1? représente un groupe choisi parmi les groupes -CH¿2?CHR¿10?NR¿6?R¿11?; -(CH¿2?)¿2?NR'¿6?R'¿11?; -CHR¿9?CH¿2?NR'¿6?R'¿11?; -(CH¿2?)¿n?Z et -COR¿8?; R'¿1? représente le groupe -CH¿2?CHR¿10?NR¿6?R¿11? ou le groupe -(CH¿2?)¿2?NR'¿6?R'¿11?; R¿2? et R'¿2? représentent l'hydrogène, un halogène ou un (C¿1?-C¿4?)alkyle; R¿3? représente l'hydrogène, un (C¿1?-C¿4?)alkyle ou un groupe choisi parmi les groupes -CH¿2?CHR¿10?NR¿6?R¿11?; -(CH¿2?)¿2?NR'¿6?R'¿11? et -COR¿8?; R'¿3? représente le groupe =CR¿6?R¿8?; R¿4? a l'une des significations données pour R¿5? ou représente un groupe -COR¿8?; R¿5? représente l'hydrogène, un (C¿1?-C¿4?)alkyle, un (C¿1?-C¿4?)alcoxy, un atome d'halogène, un groupe CF¿3?, un groupe OCF¿3?, un (C¿1?-C¿4?)alkylthio; R'¿5? a l'une des significations données pour R¿5? et est en position 5 ou 6 du cycle indène; R¿6? représente l'hydrogène ou un (C¿1?-C¿4?)alkyle; R'¿6? représente un (C¿1?-C¿4?)alkyle; R¿7? a l'une des significations données pour R¿5? ou bien R¿7? et R¿9? constituent ensemble un groupe -Y-CH¿2?- lié au cycle indole en position 7 par le groupe Y; R¿8? représente un phényle substitué une à quatre fois par un substituant choisi parmi: un halogène, un (C¿1?-C¿4?)alkyle et un (C¿1?-C¿4?)alcoxy; un polycycle choisi parmi un napht-1-yle, un napht-2-yle, un 1,2,3,4-tétrahydronapht-1-yle, un 1,2,3,4-tétrahydronapht-5-yle, un anthryle, un benzofuryle, un benzothièn-2-yle, un benzothièn-3-yle, un 2-,3-,4-, ou 8-quinolyle, lesdits polycycles étant non substitués ou substitués une ou deux fois par un substituant choisi parmi: un (C¿1?-C¿4?)alkyle, un (C¿1?-C¿4?)alcoxy, un (C¿1?-C¿4?)alkylthio, un halogène, un cyano, un hydroxyle, un trifluorométhyle, et un imidazol-1-yle; R¿10? et R¿11? ensemble représentent un groupe choisi parmi les groupes -CH¿2?-O-CH¿2?-CR¿12?R¿13?- et -(CH¿2?)¿p?-CR¿12?R¿13?-, dans lesquels l'atome de carbone substitué par R¿12? et R¿13? est lié à l'atome d'azote; R'¿11? représente un (C¿1?-C¿4?)alkyle ou bien R'¿11? et R'¿6? constituent avec l'atome d'azote auquel ils sont liés un groupe choisi parmi les groupes morpholia-4-yle, thiomorpholin-4-yle; pipéridin-1-yle et pyrolidin-1-yle; R¿12? et R¿13? représentent chacun, indépendamment l'un de l'autre, l'hydrogène ou un (C¿1?-C¿4?)alkyle; n est 2,3,4 ou 5; p est 2 ou 3; Z représente le groupe méthyle ou un atome d'halogène; Y représente le groupe méthylène ou l'atome d'oxygène.
Patent CA-2226767-A1 (CA)
Inventor: WILSON PAUL A
IPC: C11D1/75
Filed: 1998-01-13
Abstract: A cleaning formulation containing an alkyl aromatic useful as a solvent.  The alkyl aromatic generally is a a mono-, di-, or tri- alkylated aromatic.  This cleaning composition has excellent balance between solvency, flash point and odor and is useful in a variety of cleaning situations.
Patent CA-2231510-A1 (CA)
Inventor: BOOTHE JUDSON LAMAR
IPC: B65H37/04
Filed: 1996-09-10
Abstract: An apparatus and method for severing an elastic web (22) traveling at a first speed into discrete parts (26) and applying the parts (26) onto a product web (28) of interconnected disposable absorbent articles traveling at a second speed are disclosed. The apparatus includes a plurality of transfer segments (40) which are configured to rotate about a common first axis. The apparatus also includes a drive ring which is configured to rotate about a second axis which is offset from the first axis of the transfer segments (40). A plurality of coupler arms are pivotally connected to the drive ring. As the drive ring is rotated, a cam end of each of the coupler arms is guided along a curvilinear path and a crank end of each of the coupler arms slidably engages a respective transfer segment (40) thereby pivoting the coupler arms about the pivot points and rotating the transfer segments (40) at a variable speed. The offset crank motion of the drive ring and the pivoting of the coupler arms independently varies an effective drive radius of each transfer segment (40) to provide the desired variable speed.
Patent CA-2233691-A1 (CA)
Inventor: JUSSELIN PAUL G
IPC: E02F9/28
Filed: 1998-04-02
Abstract: A wear  runner assembly  includes  a base  which  is representatively  secured  to  an  excavating  bucket  wall surface, and a wear runner which is releasably connectable to  the  base  by moving  the  wear  runner  in  a  locking direction parallel to the surface to engage tongues on the base with grooves on the wear runner and thereby prevent removal of the wear runner from the base in a removal direction  transverse  to  the  surface  and  the  locking direction.  By moving the wear runner relative to the base in an unlocking direction opposite to the locking direction the connected wear runner may then be moved in the removal direction to separate the wear runner from the base.  To prevent movement of  the wear runner in this unlocking direction and corresponding uncoupling of the wear runner from the base, a generally cylindrical locking pin member is inserted in aligned openings in the wear runner and the base and rotated about an axis parallel to the removal direction to cause thread-like external projections on the locking pin to enter corresponding grooves in the base to prevent shifting of the wear runner relative to the base in the unlocking direction.   As the locking pin is rotated into place it causes a resilient detent pin structure on the base to snap into a corresponding depression on the pin to  releasably prevent  the pin  from being rotationally backed out of the aligned base and wear member openings.
Patent CA-2237563-A1 (CA)
Title: Flexible tissue ablation elements for making long lesions
Inventor: SWANSON DAVID K
IPC: A61B5/042
Filed: 1996-11-08
Abstract: This invention is devices and methods for ablating body tissue which use wire (44) wound about a support body (12) in adjacent windings to form one or more elongated electrodes. A connection couples the wire to a source of ablation energy for transmission by the elongated electrode to ablate tissue. The adjacent windings are spaced apart to impart enhanced flexibility to the elongated electrode during use.
Patent CA-2238912-A1 (CA)
Title: Automatic system for un-packing boxes
Inventor: LIEHS RUPERT HUBERT
IPC: B65G65/23
Filed: 1998-05-28
Abstract: Cardboard cartons are delivered to a soft-drink-can packaging line in boxes. The boxes are placed on a box-conveyor, from which the boxes are tranferred one by one into a bucket. The bucket holds the box while the box is overturned. In one version, the overturned box with the items inside is then moved to a magazine, where the box is pulled clear. In another version, the bucket is opened and the box pulled clear, and then the bucket is re-orientated before the items are transferred onto the magazine. The apparatus is mounted on a frame which includes uprights to which the major components can be clamped in place, allowing the apparatus to be adapted to existing machinery.
Patent CA-2243976-A1 (CA)
Inventor: DENT PAUL WILKINSON
IPC: H03M1/54
Filed: 1997-02-26
Abstract: A low cost, easily manufactured analog to digital converter uses MOS switching technology easily combined on an integrated circuit with other signal processing circuitry. An input capacitor stores an input analog voltage, and a pumping capacitor is switchably connected to the input capacitor to charge or discharge that input capacitor to a reference value. The number of charge or discharge events is used to generate a digital value for the input analog voltage.
Patent CA-2251626-A1 (CA)
Inventor: LAMERANT JEAN-MICHEL
IPC: C01F7/0606
Filed: 1997-03-24
Abstract: L'invention concerne un procédé de récupération à l'aide d'une résine échangeuse d'ions, du sodium contenu dans les résidus alcalins industriels et plus particulièrement dans les "boues rouges" et les effluents sodiques issus de la fabrication d'hydrate d'alumine selon le procédé Bayer. Elle consiste à mettre en contact sous forme d'une suspension aqueuse les résidus alcalins (1), généralement des "boues rouges" avec une résine cationique (2) de type RH+, de préférence une résine carboxylique, pour fixer sélectivement et quantitativement le sodium sur la résine (5), puis à l'extraire quantitativement sous forme NaOH (8) par le déplacement à l'aide d'une suspension de chaux (6), de préférence du lait de chaux. La résine (9) ayant fixé le calcium est ensuite régénérée pour réutilisation en tête de procédé (2), par élution du calcium à l'état de CaCl2 (12) par une solution diluée d'acide chlorhydrique (10).
Patent CA-2252992-A1 (CA)
Inventor: TSUDA TOSHIAKI
IPC: G02B6/34
Filed: 1998-11-04
Abstract: A grating-type optical component having a high isolation ability at a light-blocking band and a small clad layer mode combination loss at a signal transmission band, and its manufacturing method are provided. A selected area on a core of an optical fiber is irradiated by ultraviolet beams emitted from an excimer laser source through a phase mask in order to produce high index of refraction areas and low index of refraction areas arranged alternately and periodically along the longitudinal axis of the optical fiber. This ultraviolet irradiation is terminated before the index of refraction, which is increasing due to the ultraviolet irradiation, reaches a target value. Then, the phase mask is removed, and the selected area of the core is again irradiated by ultraviolet beams, thereby completing the grating-type optical fiber.
Patent CA-2254044-A1 (CA)
Title: Sealed bearing drill bit with dual-seal configuration and fluid cleaning capability
Inventor: SLAUGHTER ROBERT H JR
IPC: E21B10/22
Filed: 1998-11-13
Abstract: A drill bit for use in an earthen annulus that contains loose particles is connected to a fluid supply source and includes a bit body having at least one journal segment and at least one fluid conduit in fluid communication with the fluid supply source. A roller cone is rotatably mounted upon the journal segment and forms at least one bearing cavity therebetween. An annular primary seal is disposed between the roller cone and the bit body and between the bearing cavity and the earthen annulus, and an annular gap is disposed between the annular primary seal and the earthen annulus. The annular gap is in fluid communication with the fluid conduit and the earthen annulus. An annular secondary seal is disposed between the annular primary seal and the earthen annulus and is capable of substantially preventing the ingress of debris from the earthen annulus to the annular primary seal.
Patent CA-2257099-A1 (CA)
Title: Hair treatment device and method
Inventor: DE BENEDICTIS ALFREDO
IPC: A45D2/02
Filed: 1997-06-06
Abstract: A method of treating a tress of hair including waving of the tress of hair includes the steps of inserting the tress of hair with a required formation into a hollow device and then while retained in hollow device the tress of hair is treated with a chemical substance. Preferably for convenience of use the hollow device comprises an extendible tube (12, 60). One end of the tube is secured to the root end of a tress of hair and the tube is extended lengthwise. The tube is then returned to its unextended state while ensuring that the tress of hair is retained within the tube. Preferably the device comprises a base element (10, 50) secured to one end of the tube, an upper element (11, 51) secured to a second end of the tube and a body member (13, 52) located intermediate the upper element and the base element to locate the upper element relative to the base element and to provide a housing for the extendible tube (12, 60). The base element is provided with means (18, 65) to secure the base element to a root end of a tress of hair and the upper element is formed to prevent egress of the tress of hair and to provide a funnel for application of treatment substance to the tress of hair.