baber/WOPTO huggingface dataset:
Patent CA-2028789-C (CA)
Title: Kinetic assay for endotoxin using limulus amebocyte lysate and chromogenic substrate
Inventor: BERZOFSKY RONALD N
IPC: G01N33/579
Filed: 1990-10-29
Granted: 2001-02-06
Abstract: A kinetic assay procedure is provided which permits measurement of endotoxin concentration in the range from 0.005 EU/ml to 50 EU/ml. The assay procedure relies on a single reagent substrate composition comprising Limulus amebocyte lysate and a chromogenic substrate. This assay procedure is easily automated and it provides substantial improvement in both range and sensitivity over previously available endotoxin assays.
Patent CA-2047281-C (CA)
Title: Electroplating process
Inventor: DESTHOMAS GUY
IPC: C25D5/00
Filed: 1991-07-17
Granted: 1999-01-12
Abstract: A process for electrodespositing a conductive material on a substrate is disclosed which comprises movably mounting the substrate in a first conductive liquid  electroplating  bath  which  contains  the conductive material, maintaining substantially constant conditions of temperature and liquid circulation in the first bath,  passing an electric current through the substrate and the first bath so as to deposit the conductive material on the substrate,  periodically transferring the substrate to a second liquid bath, the second bath containing a liquid of the same composition or lower concentrations of dissolved ingredients as compared to the first bath, weighing the substrate when immersed in the second bath and calculating therefrom the weight in air of conductive material deposited, returning the  substrate to the  first bath,  and continuing the plating  in a  series of  stages of plating,  weighing in liquid and plating until the desired deposit is built up. An apparatus for carrying on the method is also disclosed.
Patent CA-2048939-C (CA)
Title: Zero-sync-time apparatus for encoding and decoding
Inventor: HOPPES RONALD R
IPC: H04L12/40
Filed: 1991-08-12
Granted: 2001-05-29
Abstract: In a digital data transmission system for transmitting a serial digital data stream between a first unit and a second unit connected to a first and second bus, respectively, a first apparatus interfaces the first bus to a transmission medium and a second apparatus interface the second bus to the transmission medium. The first and second unit and the first and second apparatus each have their own clock circuit. The first and second apparatus each comprise an encoder which outputs the serial digital data stream onto the transmission medium corresponding to serial data received from the first bus during a transmission period of the first bus. The encoder outputs the serial digital data stream onto the transmission medium in a predetermined format during a quiescent period of the first bus. A phase relationship of the serial data and the serial digital data stream outputted at the start of transmission between the quiescent period and the transmission period is established in a single bit time. A decoder decodes the serial digital data stream inputted from the transmission medium to determine the bit value of information. A receiver/transmitter couples the signals between the first bus and the apparatus.
Patent CA-2050070-C (CA)
Title: Optical memory device
Inventor: VAN KAZUO
IPC: G03C1/76
Filed: 1991-08-27
Granted: 1996-03-05
Abstract: An optical memory device comprises a transparent substrate and a recording film deposited on the transparent substrate.   The recording film is formed by preparing a composition  in  which  a  diarylethene-type  photochromic compound is dispersed in an ultraviolet-curing polyurethane-acrylate resin of the solventless type and by curing the composition by ultraviolet ray irradiation.
Patent CA-2056348-C (CA)
Inventor: TANIKAWA HIROHIDE
IPC: G03G13/20
Filed: 1991-11-27
Granted: 1999-10-19
Abstract: A toner for developing an electrostatic image is constituted by a binder resin and a colorant The binder resin is characterized by containing at least 20 wt. % of an extraction residue after 6 hours of extraction and below 20 wt. % of an extraction residue after 72 hours of extraction respectively by Soxhlet extraction with tetrahydrofuran. The toner shows a dynamic modulus and a loss modulus, respectively at 200 °C and 0.1 Hz, which are substantially unchanging with time. The properties provide the toner with a harmonization of anti-offset characteristic and fixability as well as stable viscoelasticity under heating.
Patent CA-2063607-C (CA)
Title: Microelectrodes and their use in cathodic electrochemical current arrangement with telemetric application
Inventor: BRODERICK PATRICIA A
IPC: G01N27/30
Filed: 1990-08-14
Granted: 2001-08-07
Abstract: This invention relates to a microelectrode comprising graphite, oil and, additionally, a com-pound selected from the group of lipids, glycolip-ids, lipoproteins, fatty acids, fatty acid derivatives, any water insoluble species and perfluorosulfonat-ed compounds and salts thereof. This invention al-so relates to a method for using the microelectrode, a device that may be employed with the microelec-trode, a method for making the microelectrode, and a method for using the device with the microelec-trode.
Patent CA-2065250-C (CA)
Title: Cellular telephone controller with synthesized voice feedback for directory number confirmation and call status
Inventor: KOWALSKI JOSEPH L
IPC: H04M1/2747
Filed: 1991-07-11
Granted: 1995-05-16
Abstract: A unique cellular telephone controller (104 and 106) provides synthesized voice feedback for directory number confirmation, call status, and cellular telephone feature, option and service selection. Cellular telephone (100) includes a cellular telephone transceiver (102), cellular telephone handset (108), AM/FM radio (110), speaker (112), control box (106), and controller switch unit (104). Controller switch unit (104) includes phone switch (201), select switch (202), scroll up switch (203), scroll down switch (204), microphone (210), and preamplifier (211). Activation of the scroll up switch (203) or scroll down switch (204) steps a location counter through locations zero through ten of the telephone number directory in cellular telephone (100) and also voices the location number or name. Activation of the select switch (202) reads out the telephone number from the memory location indicated by the location counter and also voices the digits or name for the read-out telephone number. Activation of the phone switch (201) originates a cellular telephone call to the read-out telephone number. Thereafter, another activation of the phone switch (201) terminates the cellular telephone call.
Patent CA-2072447-C (CA)
Title: Tocopherol mixture for use as a mint oil antioxidant in chewing gum
Inventor: BARKALOW DAVID G
IPC: A23L27/12
Filed: 1992-06-26
Granted: 1996-11-26
Abstract: Specific mixtures of tocopherol homologs exhibit surprisingly improved antioxidant effects in mint oil and mint-flavored chewing gum compositions. The mixtures of homologs fall within the range of 7-15% by weight alpha tocopherol, 45-70% by weight gamma tocopherol and 20-35% by weight delta tocopherol. Homologue mixtures within this range are superior to the constituent homologs used alone, and to other homologue mixtures, in terms of antioxidant effects. The compositions of the invention facilitate the replacement of controversial synthetic antioxidants currently used in mint oil and mint-flavored chewing gum, with naturally occurring tocopherols.
Patent CA-2076432-C (CA)
Title: Humanized antibody derivatives that recognize difucosyl lewis blood group antigens y-6 and b-7-2
Inventor: CO MAU SUNG
IPC: G01N33/577
Filed: 1992-08-19
Granted: 2003-10-21
Abstract: Human/mouse chimeric and humanized monoclonal antibodies recognizing the difucosyl Lewis blood group antigens Y-6 and B-7-2 are disclosed.    They can be used in the treatment of cancer of epithelial origin, of small cell lung cancer and of HIV-infections, especially of AIDS.
Patent CA-2076980-C (CA)
Title: Method and product for promoting hair growth and treating skin conditions
Inventor: ELIAZ ISAAC G
IPC: A61K8/00
Filed: 1991-03-01
Granted: 1997-03-18
Abstract: Methods and products for promoting hair growth, preventing or minimizing hair loss, enhancing or restoring hair color or remelanization and treating other hair and skin conditions are disclosed. The methods include topical application of the products to the skin or hair follicles being treated. The product includes as an esential component a treatment agent in an amount effective for treating the condition and selected from the class of chemicals consisting of anol, anethole, analogs of the above, polymers of the above and mixtures thereof. Various combinations of these chemicals may be found in herb families including umbelliferae, magnoliaceae, labiatae and rutaceae. The invention preferably contemplates selecting the treatment agent from the class of herbs consisting of Foeniculum vulgares (fennel seed), Pimpinella anisum (anise), Carum carvi (caraway seeds) and mixtures of the above herbs with each other and/or with other herbs.
Patent CA-2077570-C (CA)
Title: Fastener-driving tool assembly with improved fastener-loading features
Inventor: DEWEY GEORGE G
IPC: B25C1/18
Filed: 1992-09-04
Granted: 1997-12-30
Abstract: In a fastener-driving tool, such as a powder-actuated tool, a nosepiece has an aperture, through which a fastener can be axially driven.  A shuttle has a passageway to receive the fastener, as guided by a flexible tube, in a fastener-receiving position of the shuttle.  A shuttle-moving mechanism is ~sed to move the shuttle from the fastener-receiving position into a fastener-delivery position.  A driving mechani~m enables the fastener to be axially driven from the passageway, through the aperture, in the delivery position of the shuttle.  A magnet or a spring, such as a torsional spring having an arm to engage the fastener, is used to retain the fastener in a pre-driving position.  As a stand-up tool, the tool has a primary trigger and a secondary trigger, which enables the primary trigger to be remotely actuated.
Patent CA-2079910-C (CA)
Title: Traitement ionique : stockage, refroidissement et spectrometrie
Inventor: KIRCHNER NICHOLAS J
IPC: H01J49/42
Filed: 1992-02-11
Granted: 1998-12-08
Abstract: Cette invention concerne une unité de traitement d'ions (10) comprenant une série de feuilles électrodes (12)  à perforations M et une unité centrale de traitement (18) et qui permet la formation, le façonnage et le déplacement de pièges à ions multiples (42). Les ions piégés par un piège (42) donné peuvent être isolés, transférés, refroidis ou chauffés, séparés et combinés. La mesure des courants miroir induits permet de mesurer et de discriminer les espèces d'ions en fonction de leur rapport charge/masse. La combinaison d'un grand nombre de feuilles électrodes (12) à perforations multiples N crée une série de canaux de traitement d'ions en parallèle (26). L'unité de traitement d'ions constitue un système de traitement d'ions à N par M canaux massivement parallèles qui permet de traiter de grandes quantités d'ions en parallèle de la même façon, mais selon des procédés ioniques différents mis en oeuvre dans différentes section de chaque canal de traitement (26). De plus, la structure parallèle de remplissage de l'espace selon la présente invention offre un moyen efficace de stockage temporaire de grandes quantités d'ions, y compris de l'antimatière ionisée.
Patent CA-2080695-C (CA)
Title: Press roll
Inventor: ILMARINEN ANTTI ISAKKI
IPC: D21F3/08
Filed: 1991-05-07
Granted: 1995-09-26
Abstract: In order to increase the life of a flexible jacket in a shoe type press roll having a flexible jacket (11), end wall displacing means (28) and jacket streching means (27), the end wall displacing means (28) are designed to permit a setting of an arbitrary operating position for one roll end wall (18) between two end positions on one of the two stub shafts (13) of the roll, and the jack-et stretching means (27) are designed to maintain the stretching force substantially constant, whereby the other roll end wall (22) will be self-positioning and will automatically follow each axial displacement of said one roll end wall (18). Consequently, it will be possible to let the end walls (18, 22) be placed in one end position during a first period of operation and to displace them, for each subsequent period of operation, and adequate distance towards the other end position, whereby the fatigue and the wear of the roll jacket (11), which occur primarily at the axial end of the press shoe (14), will be spread over an area corresponding to the entire displacement distance between the end positions.
Patent CA-2084329-C (CA)
Title: Adjustable shin pad
Inventor: HOSHIZAKI T BLAINE
IPC: A63B71/12
Filed: 1992-12-02
Granted: 1996-07-23
Abstract: A shin pad is described in which the shin shield is in two pieces, namely an upper piece which is secured to the lining of the knee cap, or to the knee cap itself, and a lower piece which is slidable up and down relative to the upper piece, and to which a lower liner is secured, the lower liner being independent of the knee liner.  Preferably, the lower piece is slidable with respect to the upper piece by virtue of one or more slotted holes in either or both of the upper piece and/or lower piece, with bolts and T-nuts being used in the slots to secure the pieces together in the desired position. Preferably, there are three such slotted holes, namely a front central one and two side ones, namely one towards either side of the pad.  Preferably, there is sufficient sloppiness in the slots to provide a varus/valgus adjustment, i.e. an adjustment of the angle of the shin shield, in the vertical lateral plane, relative to the orientation of the knee cap, by permitting the lower piece to be secured with one side higher than the other relative to the upper piece.
Patent CA-2084646-C (CA)
Title: Postmix beverage dispensing system
Inventor: RICHTER SIMON J
IPC: B67D1/00
Filed: 1991-06-06
Granted: 2002-09-17
Abstract: A postmix beverage dispensing system for dispensing a finished beverage directly from a pliable beverage concentrate at freezer temperatures, without the need for forcing the concentrate through a heat exchanger. The system preferably uses a single blow molded disposable concentrate package having the two parts of (1) a concentrate container, and (2) a metering pump and mixing nozzle. The concentrate container is placed in a canister and pressurized and a pump actuator is connected to the metering pump along with a pressurized water line. The dispenser requires no cleanup or sanitization and allows rapid flavor change. The invention includes an improved metering pump.
Patent CA-2094431-C (CA)
Title: Surface-treated medical devices
Inventor: BOSLEY RODNEY W
IPC: A61M/
Filed: 1993-04-20
Granted: 2006-10-03
Abstract: A dual lumen catheter is disclosed for providing extracorporeal treatment such as hemodialysis, which is percutaneously inserted for either short-term or long-term vascular access. The catheter includes a main body having proximal and distal segments connected to a pair of clamping limbs via a manifold. The distal segment includes two tubular members laterally attached to each other, one of which is thinner than the other and collapsible for inserting the catheter through a much smaller diameter peel-away sheath. contrary to existing practices, the lengths of the arterial and venous tubular members are reversed such as to provide a longer negative pressure intake lumen. A hydrophilic slip coating covers the distal segment to further ease the insertion of the distal segment into the peel-away sheath. The cross-sectional area of the proximal segment is generally elliptical shaped for providing a leak proof fit through the vascular access site. A ring-like grommet moveable along the proximal segment anchors the catheter to the surrounding tissue.      The lumens extending throughout the entire catheter are generally circular in nature and substantially equal in cross-sectional area to provide substantially equal flows of intake and return blood and to minimize clotting. The wall thickness of the negative pressure intake member is approximately one and a half to three times as thick as that of the thin-walled positive pressure tubular wall to maintain adequate flows of blood without collapsing or stretching.
Patent CA-2095030-C (CA)
Title: External urinary catheter having integral adhesive means
Inventor: CONWAY ANTHONY J
IPC: B29C41/22
Filed: 1991-11-12
Granted: 2003-10-21
Abstract: The external urinary catheter (10) includes (a) a single tubular sheath (11) having a unitary construction made of silicone rubber, the silicone rubber having an inner surface (12) and an outer surface (14); and (b) a layer (IS) of adhesive material bonded to a first portion of the inner surface; wherein the adhesive material can releasably contact portions of the outer surface such that the inner surface of the silicone rubber sheath can be rolled up on the outer surface thereof. A method of making an ex-ternal urinary catheter is also disclosed. Said method includes the steps of (a) coating a first portion of a mandrel with an adhe-sive material; (b) subsequently overcoating the mandrel with a silicone rubber solution to form an overcoat layer made of unvul-canized silicone rubber; and (c) vulcanizing the unvulcanized silicone rubber such that constituents of the silicone rubber cross-link to form an elastomeric sheath having a unitary construction made of vulcanized silicone rubber; the silicone rubber sheath having an inner surface and outer surface; and the adhesive material being bonded to a first portion of the inner surface.
Patent CA-2096111-C (CA)
Title: Macromolecular monomers from living polymers
Inventor: BABU GADDAM N
IPC: C08C19/44
Filed: 1991-11-14
Granted: 1998-01-20
Abstract: A new class of macromolecular monomers (hereinafter called "macromonomers")comprises the polymerized product of at least one of an ethenylarene and a conjugated diene monomer, the product having a terminal omega-alkenyl group of at least four carbon atoms. The novel macromonomer can be copolymerized with ethylene and alpha-olefin monomers to form graft copolymers having pendant side-chains. The graft copolymers are useful as coating and molding compositions. The macromonomers can be useful as coatings on chromotographic supports for analytical and preparative separation of chemical mixtures.
Patent CA-2096731-C (CA)
Title: Metered dose inhaler system
Inventor: HILLSMAN DEANE
IPC: A61B5/08
Filed: 1991-01-04
Granted: 2001-03-20
Abstract: A visual and auditory biofeedback system to instruct patients in proper techniques of inhalation to correctly administer aerosol drugs with Metered Dose Inhaler (MDI) (1 and 2) devices. The system displays desired respiratory parameters of correct expiration lung volume (8 and 9) along with real time inspiration performance (10) with computer (6) related technology means. Optimal performance parameters suited to individual patient needs may be generated. Suitable respiratory flow transducer means (5) is used to generate integrated air volume signals in real time, and suitable electronic switching means (7) is used to indicate MDI activation in real time. The system thus provides visual and auditory,biofeedback incentives to improve patient or student performance to mechanical prescription parameters defined by the physician or instructor. Visual and auditory performance deficiency defined limits and performance enhancement indicators may be optionally used, both to enhance and to quality control performance.
Patent CA-2099473-C (CA)
Inventor: LI MING
IPC: A61K8/00
Filed: 1993-06-30
Granted: 1999-12-28
Abstract: Utilisation en tant que composé actif, à usage topique, pour la préparation d'une composition dermatologique destinée au traitement spécifique des taches pigmentaires et à blanchir la peau, d'au moins un acide di- ou tri-caféoylquinique correspondant à la formule générale (I) suivante: (voir formule I) dans laquelle: R1, R2, R3 et R4 représentent un atome d'hydrogène ou le radical CAF de formule: (voir formule II) sous réserve que deux au moins et trois au plus des radicaux R1, R2, R3 ou R4 représentent le radical CAF mais à l'exclusion de R1 et R4 représentant le radical CAF et R2 et R3 représentant un atome d'hydrogène, ou un mélange desdits acides caféoylquiniques.
Patent CA-2113230-C (CA)
Inventor: HARTLEY GERALD
IPC: F25D17/00
Filed: 1994-01-11
Granted: 1999-02-16
Abstract: In a banana ripening room, pallets of boxes of fruit are stacked in individual locations defined by a support structure, in two spaced apart rows separated by an aisle, and in two superimposed tires. The aisle defines a volume into which air is introduced under pressure by fans in an overhead space separated from the room by a false celing.          All the gaps between adjacent pallets and structural members are sealed by rubber flaps, an efficient seal being obtained when boxes are used which are designed for use in pressurised ripening systems. The flaps are attached along one edge to structural members and free at their other edges to conform to the contours of the pallet loads, thereby ensuring that air can be cycled only through the pallet loads to lower pressure zones beyond the rows of pallets.     .
Patent CA-2114729-C (CA)
Title: Reseau a systeme de surveillance de lignes
Inventor: FAULKNER DAVID WYNFORD
IPC: H04B10/00
Filed: 1992-10-01
Granted: 1998-12-01
Abstract: L'invention est un système servant à surveiller un réseau dans lequel une station (1) connectée à ce réseau comprend un émetteur (2) et un récepteur (3). Cet émetteur (2) transmet sur le réseau un signal modulé avec le trafic et le récepteur (3) reçoit du réseau un signal modulé avec le trafic incident. La station (1) comprend un circuit de surveillance (7). Ce circuit de surveillance (7) introduit un retard variable dans un signal provenant de l'émetteur (2) et combine le signal retardé avec le signal reçu pour produire un signal de sortie qui dépend de la corrélation du signal provenant de l'émetteur (2) et du signal reçu au retard donné. Dans une concrétisation privilégiée de l'invention, le réseau est un réseau optique et le retard est introduit au moyen d'une ligne de retardement programmable.
Patent CA-2115963-C (CA)
Inventor: WHITEMAN AHARON
IPC: A61K6/04
Filed: 1994-02-18
Granted: 2003-01-28
Abstract: A moldable dental composition for use in forming or repairing dental restorations composed of a mixture of high- and low- fusing temperature metal particles, finely divided carbonaceous particles, preferably of activated carbon, and a volatile binder in a concentration, such that upon heat treatment at a temperature below the melting temperature of the high-fusing temperature metal particles but sufficient to melt the low-fusing temperature metal particles and binder, a porous metal structure is formed having a capillary network of voids and a high void volume. The voids are filled using a filler material of metal or ceramic.
Patent CA-2117862-C (CA)
Title: Rotor blade damping structure for axial-flow turbine
Inventor: SUZUKI ATSUHIDE
IPC: F01D5/30
Filed: 1994-10-11
Granted: 1999-04-20
Abstract: In an axial-flow turbine, at least one of front and rear side contact surfaces of shrouds (3a or 3b) of blades (1a or 1b) with respect to the turbine rotational direction is formed at certain angle with respect to a radial line connecting the rotor center and the contact surface.  The shroud (3a) of the blade (1a) of a first kind is formed in a trapezoidal shape converging radially outward in cross section taken in a plane perpendicular to the turbine axial direction, and the shroud (3b) of the blade (1b) of a second kind is formed in an inverted trapezoidal shape converging radially inward in the cross section.  Further, half of an angle (2a) between the front and rear side contact surfaces of the shrouds (3a or 3b) is made smaller than a static frictional angle of the contact surface. Since the shroud contact surfaces of two adjacent blades can be kept in pressure contact with each other under all operating conditions, a large dynamic stress reduction and superior damping properties can be obtained without producing excessive initial stresses at the blade airfoil and blade dovetail attachment portion.