baber/WOPTO huggingface dataset:
Patent CA-2126797-C (CA)
Title: High spiral angle winding cores
Inventor: QUI YANPING
IPC: B31C3/00
Filed: 1994-06-27
Granted: 1998-09-22
Abstract: The invention provides spirally wound paperboard cores for winding of textiles and other materials and which have enhanced high speed winding capability.  The spirally wound paperboard plies forming the body wall of the paperboard core have a predetermined spiral winding angle with respect to the axis of the cylindrical body wall of greater than 71 degrees.  In winding cores having a relatively large ID of between about 4.8 in. (120 mm) and 6 in. (150 mm), the paperboard plies forming the spirally wound cores have a winding angle of greater than 74 degrees.  In winding cores having a lower ID of less than 4.8 inches (120 mm), all of the paperboard plies have a width of 3.5 in.  (89 mm) or less and a spiral winding angle of greater than 71 degrees.
Patent CA-2132959-C (CA)
Inventor: TAYI APPARAO
IPC: G01N33/537
Filed: 1993-03-24
Granted: 2006-01-24
Abstract: An automated, continuous and random access analytical system, having apparatus and methodology capable of simultaneously performing multiple assays of liquid samples using different assay methodologies, and providing continuous and random access while performing a plurality of different assays on the same or different samples during the same time period, is disclosed. A method is also disclosed of operating an automated. continuous and random access analytical system capable of simultaneously effecting multiple assays of a plurality of liquid samples wherein scheduling of various assays of the plurality of liquid samples is followed by creating a unit dose disposable and separately transferring a first liquid sample (26), reagents (30) to a reaction vessel (34) without initiation of an assay reaction sequence, followed by physical transfer of the unit dose disposable (34) to a process work station, whereby a mixture of the unit dose disposable reagents and sample (34) are achieved during incubation. The system is capable of performing more than one scheduled assay in any order, and assays where more than such scheduled assays are presented. The automated, continuous and random access analytical system is also capable of analyzing the incubated reaction mixtures independently and individually by at least two assay procedures.
Patent CA-2137840-C (CA)
Inventor: DESIMONE JOSEPH
IPC: G10L21/02
Filed: 1994-12-12
Granted: 1998-07-07
Abstract: The recognition rate of a speech recognition system is improved by compensating for changes in the user's speech that result from factors such as emotion, anxiety or fatigue. A speech signal derived from a user's utterance, and a bio-signal, which is indicative of the user's emotional state, are provided to a speech recognition system. The bio-signal is used to provide a reference frequency that changes when the user'semotional state changes. An utterance is identified by examining the relative magnitudes of its frequency components and the position of the frequency components relative to the reference frequency.
Patent CA-2138063-C (CA)
Title: Polyurethane foam-supported double metal cyanide catalysts for polyol synthesis
Inventor: LE-KHAC BI
IPC: C08G59/68
Filed: 1994-12-14
Granted: 2007-02-20
Abstract: Polyurethane foam-supported double metal cyanide (DMC) catalysts are disclosed as useful catalysts for epoxide polymerization. The foam-supported catalysts are easy to prepare, and are more active and show reduced induction periods compared with conventional powdered DMC catalysts. The catalysts of the invention can be recovered from the epoxide polymer products and can be reused to catalyze additional epoxide polymerizations.
Patent CA-2145289-C (CA)
Inventor: GOULAIT DAVID JOSEPH KENNETH
IPC: A44B18/00
Filed: 1993-10-25
Granted: 1998-10-20
Abstract: The invention is a process for making a refastenable mechanical fastening system comprising the steps of providing a depositing member having at least one aperture having a diameter of between about 0.008 inch to about 0.040 inch; providing a molten thermally sensitive material having a storage modulus less than about 5000 dynes/centimeter2 at the application temperature and a storage modulus of at least about 1 x 10 6 dynes/centimeter2 at a temperature no more than 40 °C less than the application temperature; providing a substrate; forcing the molten thermally sensitive material through the aperture; depositing a discrete amount of the molten thermally sensitive material from the aperture onto the substrate; stretching a portion of the discrete amount of the molten thermally sensitive material in a direction having a vector component parallel to the plane of the substrate so as to form a prong; and solidifying the molten thermally sensitive material of the prong, the prong (22) having a base (26), a shank (28), and an engaging means (30), the engaging means (30) forming an included angle of at least 180°.
Patent CA-2146404-C (CA)
Title: Golf putting practise apparatus and method of installation of the same
Inventor: FROTTEN GEORGE NELSON
IPC: A63B57/40
Filed: 1995-04-05
Granted: 2000-03-14
Abstract: A golf putting practise apparatus having a flat support plate with a peripheral edge. The flat support plate is fabricated of a resilient material that returns to its original shape after bending. A cup depends from the flat support plate. The cup has a peripheral lip which is substantially level with the flat support plate. The golf putting practise apparatus is installed in a floor duct of a forced air heating system by bending the flat support plate and inserting the peripheral edge of the flat support plate underneath a carpet with the depending cup depending into the floor duct.
Patent CA-2146757-C (CA)
Title: Stabilization of fluorocarbon emulsions
Inventor: WEERS JEFFRY GREG
IPC: C09K23/14
Filed: 1993-10-27
Granted: 2004-09-21
Abstract: Storage stable fluorocarbon emulsions having a continuous aqueous phase and a discontinuous fluorocarbon phase, in which the fluorocarbon phase comprises a major amount of a first fluorocarbo n or fluorocarbon mixture, and a minor amount of a second fluorocarbon or fluorocarbon mixture, in which the second fluorocarbon has a molecular weight greater than that of the first fluorocarbon and the second fluorocarbon includes a lipophilic moiety in its structure, whereby the second fluorocarbon serves to promote particle size stability in the emulsion while simultaneously providing favorably short organ retention times when administered to animals in vivo.
Patent CA-2148158-C (CA)
Inventor: MENENDEZ FRANCISCO JAVIER SITG
IPC: C25C7/08
Filed: 1995-04-28
Granted: 2000-06-27
Abstract: Facility to remove the layers electro-deposited upon the cathodes, made up of a cathode reception area (1), a cathode treatment area (2) with cathode washing means (15) and means to extract (16) the layers electro-deposited thereupon, and a storage area (3) to keep already freed cathodes. The extraction means include vertical claws (35) and two parallel rollers (36) mounted so that they are capable of turning freely upon two horizontal parallel bars (34), being the bars (34) fixed between pairs of arms (31) that are mounted so that they may tilt upon a bracket (29), being said bracket a carrier of upper separating rollers.
Patent CA-2152567-C (CA)
Title: Approach to directly performing asynchronous transfer mode (atm) adaptation layer 5 reassembly
Inventor: BUCKLAND KENNETH M
IPC: H04L49/111
Filed: 1995-06-23
Granted: 2000-01-11
Abstract: A method of transferring data from an ATM (asynchronous transfer mode) physical device to an application specific circuit (ASIC) comprised of receiving a continuous stream of ATM cells from the ATM physical device, identifying a virtual circuit from a header of each cell, providing an identification (address) of the virtual circuit to an output for reception by the ASIC, providing a continuous stream of payload contents of each cell received from the ATM physical device directly to an output for reception by the ASIC, calculating a cyclic redundancy check (CRC) on data carried by cells forming each packet for each to virtual circuit address and providing an indication to the ASIC of invalid data relating to a packet having a particular virtual circuit in the event the CRC is indicative that data in a packet is incorrect.
Patent CA-2154514-C (CA)
Title: Gas-to-gas heat exchangers for use in sulphuric acid plants
Inventor: CAMERON GORDON M
IPC: F24H3/08
Filed: 1995-07-24
Granted: 2001-01-02
Abstract: A heat exchanger for use in a sulphuric acid manufacturing plant to effect heat transfer between desired gas streams selected from air, sulphur dioxide and sulphur trioxide. The exchanger provides for hot or cold split flow gas streams through the exchanger shell with either mixing or splitting into two or more streams to provide for reduced condensible material condensation, corrosion, metal thermal differential stress and capital equipment cost. A preferred exchanger is used in combination with a sulphur burning furnace to provide an improved preheater.
Patent CA-2162063-C (CA)
Inventor: BROWN DAVID
IPC: B29C45/18
Filed: 1995-11-03
Granted: 2003-02-25
Abstract: A multi-level stacked mold having at least two and as many as four levels of cavities has a stock distribution mold block centred axially of the stacked mold blocks, the axially extending stock inlet passage to the distribution block connecting with radially off-set stock transfer passages thatcross the axially openable mold block interfaces, into the adjoining mold blocks. These openable stock transfer passages, are each provided at their respective, non-encapsulated, radially off-set, opening interfaces with a valve-less anti-drool arrangement. The mold flow passage system is subject to continual, extreme, thermal cycling and cyclical mechanical loading, during the repeated opening-and-closing cycles of the mold. Each separable anti-drool sealing interface has a relatively axially displaceable portion extending to bridge the initial gap opening between adjacent mold blocks and serving as an expansible piston means. This extension of the displaceable "expansible piston means" portion is pressure responsive and serves to increase the internal volume of the adjacent transfer passage, while permitting equalizing the pressure of stock in the passage to atmospheric pressure, thus reducing the likelihood of the drooling of liquid plastic into the opening interspace, or theinduction of atmospheric air into the flow passages.
Patent CA-2166627-C (CA)
Title: Canule d'entree rotationnelle trocarlesse
Inventor: TERNAMIAN ARTIN M
IPC: A61B17/34
Filed: 1995-05-05
Granted: 2002-01-08
Abstract: Selon la présente invention, une canule comporte sur sa surface externe des filets de vis, elle possède également une extrémité distale et une extrémité proximale, l'extrémité distale comprenant un dispositif servant à couper et pénétrer les tissus de la paroi du corps humain afin d'avoir facilement accès et en toute sécurité à une cavité du corps, sans utiliser de trocar. L'invention se rapporte également à un procédé permettant d'avoir accès à une cavité du corps à l'aide d'une canule sans utiliser de trocar, la canule comportant des filets de vis sur sa surface externe, et étant pourvue d'une extrémité distale et d'une extrémité proximale, l'extrémité distale comprenant un dispositif pour découper et pénétrer les tissus de la paroi du corps humain afin d'avoir accès facilement et en toute sécurité à une cavité du corps sans utiliser de trocar.
Patent CA-2167771-C (CA)
Inventor: MCCLANAHAN VIRGINIA L
IPC: F16C3/03
Filed: 1996-01-22
Granted: 2004-05-18
Abstract: A method for making a drive line slip joint assembly of the type having a slip yoke and a yoke shaft, the yoke shaft telescopically engaging an internal bore through one end of the slip yoke, the yoke shaft having an externally splined portion with splines extending radially outwardly from a central axis, and the slip yoke having an internally splined portion with splines extending radially inwardly toward the central axis, with the splines of the yoke shaft intermeshing with the splines of the slip yoke to form a driving connection between the yoke shaft and the slip yoke, includes coating the splines of either the yoke shaft or the slip yoke with a low friction coating, heating, the yoke shaft and the slip yoke to a temperature sufficient to soften the low friction coating, centering the yoke shaft with respect to the slip yoke, inserting the yoke: shaft into the internal bore of the slip yoke, and cooling the yoke shaft and slip yoke.
Patent CA-2172127-C (CA)
Inventor: CULPEPPER WILL L
IPC: B31B3/02
Filed: 1994-09-19
Granted: 1999-12-07
Abstract: A machine (10) for erecting and loading sleeve type cartons (20) having appositely disposed panels has a hopper (11), a carton extraction wheel (28), an intermediary wheel (29), a delivery wheel (30) and a conveyor (13). The extraction wheel has reciprocal moving suction cups (32) for gripping and extracting a carton from the hopper. The intermediary wheel has suction cups (33, 34) for gripping and relaying the carton from the carton extraction wheel. The delivery wheel has suction cups (36, 37) for gripping and relaying the carton from the intermediary wheel while simultaneously the panels of the cartons.
Patent CA-2172747-C (CA)
Inventor: HUFF RICHARD GARNER
IPC: C03B37/027
Filed: 1996-03-27
Granted: 1999-06-08
Abstract: The disclosed method of making optical fiber (43) involves applying alternately clockwise and counterclockwise twist to the fiber as the fiber is being drawn from a preform (41), such that a permanent spin is impressed on the fiber.The torque is applied by novel means, namely, a roller (15) of geometry that causes the fiber to roll on the surface of the roller, alternately in one direction and the opposite direction. The novel technique can facilitate drawing of low PMD (polarization mode dispersion) fiber at relatively high speed.
Patent CA-2173063-C (CA)
Inventor: ARMENTA VINCENT N
IPC: A42B1/04
Filed: 1996-03-29
Granted: 1999-09-14
Abstract: A headgear accessory is adaptable to an existing cap, hat, hood, or other article worn on the head, to cover a hole or passage formed therein to provide for .the passage of the hair of the wearer therethrough. Using the present headgear accessory, a hole,may be placed in the headgear at a location comfortable for the passage of longer hair (e.g., ponytail, braid, etc.) therethrough, and the accessory sewn or otherwise secured to the headgear to provide a decorative closure for the hole. The accessory is preferably formed of a resilient, flexible material such as neoprene sheet, with a synthetic fabric overlay for additional strength and to provide a more attractive appearance. A series of slots are formed in the neoprene/fabric sheet, through which the wearer's hair is passed. The resilient nature of the sheet material biases the material to each side of each of the slots against the hair, thereby providing greater security for the headgear on the wearer's head and yet providing for ease of removal of the headgear. The periphery and edges of the slots of the accessory may be stitched for greater durability and to provide an attractive appearance, if desired. The accessory may be provided separately, or in combination with various types of hats, caps, hoods, and/or other headgear of virtually any type.
Patent CA-2174000-C (CA)
Inventor: STUK TIMOTHY L
IPC: C07D221/14
Filed: 1994-09-26
Granted: 2005-05-24
Abstract: Intermediates and processes are disclosed which are useful for the preparati on of a substantially pure compound of formula (3), wherein R6 and R7 are each hydrogen or R6 and R7 are independently selected from (i), wherein Ra and Rb are independently selected from hydrogen, loweralkyl and phenyl and Rc, Rd a nd Re are independently selected from hydrogen, loweralkyl, trifluoromethyl, alkoxy, halo and phenyl; and (ii) wherein the naphthyl ring is unsubstituted or substituted with one, two or three substituents independently selected fr om loweralkyl, trifluoromethyl, alkoxy and halo; or R6 is as defined above and R7 is R7aOC (O)-wherein R7a is loweralkyl or benzyl; or R6 and R7 taken togethe r with the nitrogen atom to which they are bonded are (a) or (b), wherein Rf, Rg, Rh and Ri are independently selected from hydrogen, loweralkyl, alkoxy, halogen and trifluoromethyl and R8 is hydrogen or -C(O)R" wherein R" is loweralkyl, alkoxy, benzyloxy or phenyl wherein the phenyl ring is unsubstituted or substituted with one, two or three substituents independent ly selected from loweralkyl, trifluoromethyl, alkoxy and halo; or an acid addition salt thereof.
Patent CA-2175464-C (CA)
Title: Wastewater system rehabilitation using multi-layer liner
Inventor: HUME JAMES M
IPC: F16L55/165
Filed: 1994-09-23
Granted: 2003-04-22
Abstract: A technique and device for rehabilitating or repairing wastewater system components or the like, comprising a spray-applied, multi- layer liner (10) which seals the components and imparts structural integrity. The liner (10) comprises a primer layer (11), a first moisture barrier layer (12), a foam layer (13), and a second moisture barrier layer (14). The first and second moisture barrier layers (12, 14) are preferably made of the same material and form a skin on both sides of the internal foam layer. The combination of the foam layer (13) and the two moisture barrier layers (12, 14) imparts structural strength and rigidity to the cured liner. Preferably, the primer layer (11) is an epoxy, the moisture barrier layers (12, 14) a polyurea and isocyanate blend, and the foam layer (13) a polyurethane.
Patent CA-2183604-C (CA)
Inventor: SELL GUNTHER
IPC: B63B9/00
Filed: 1996-08-19
Granted: 2006-11-07
Abstract: The device is used in exhaust and ventilation systems on a ship which has a plurality of exhaust and ventilation ducts. The exhaust and ventilation ducts connect the ship's operating systems with the environment. There are retaining elements for the three-dimensional fastening of the exhaust and ventilation ducts. The exhaust and ventilation ducts are mounted in a support frame. The support frame is self-supporting and can be inserted in a vertical shaft on the ship. The support frame has a height which essentially equals the vertical length of the exhaust and ventilation ducts, and extends, starting from the shipboard propulsion system, through a plurality of ship's decks, to a stack end piece.
Patent CA-2186135-C (CA)
Title: Automated detection of lesions in computed tomography
Inventor: GIGER MARYELLEN L
IPC: A61B6/03
Filed: 1995-03-30
Granted: 2000-11-21
Abstract: A method and system for the automated detection of lesions in computed tomographic images, including generating image data from at least one selected portion of an object, for example, from CT images of the thorax. The image data are then analyzed in order to produce the boundary of the thorax. The image data within the thoracic boundary is then further analyzed to produce boundaries of the lung regions using predetermined criteria. Features within the lung regions are then extracted using multi-gray-level thresholding and correlation between resulting multi-level threshold images and between at least adjacent sections. Classification of the features as abnormal lesions or normal anatomic features is then performed using geometric features yielding a likelihood of being an abnormal lesion along with its location in either the 2-D image section or in the 3-D space of the object.
Patent CA-2186793-C (CA)
Title: Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers
Inventor: WEERACKODY VIJITHA
IPC: H04B7/06
Filed: 1996-09-30
Granted: 2000-12-19
Abstract: An invention for providing diversity for direct sequence spread spectrum wireless communication systems is presented. The invention provides a receiver technique in which M antennas are utilized at the receiver. Distinct weighting signals are applied to information signals received at each of the M antennas, with the weighing signals being, for example, distinct changes in either phase or amplitude. Applying weighing signals to each of the information signals receivedat the M receiver antennas results in constructive addition of derived signal vectors at predetermined intervals, which eliminates deep fading at the receiver.
Patent CA-2188109-C (CA)
Title: Process for preparing alkylimidazolidone (meth)acrylates
Inventor: RIONDEL ALAIN
IPC: C09J133/14
Filed: 1996-10-17
Granted: 2000-12-19
Abstract: A new process for the mfr. of cpd. of formula (I), where -R<1> = H or Me ; A, B (each) = 2 - 5C alkylene(opt. branched), whereby anhydride of formula (II) is reacted with a heterocyclic alcohol of formula (III).
Patent CA-2193615-C (CA)
Title: Methacrylate resin blends
Inventor: SHAH NILESH
IPC: C08L33/04
Filed: 1996-12-20
Granted: 2006-05-30
Abstract: The invention encompasses a new methacrylate resin blend composition, and a method of making the blend composition, having improved solvent craze resistance. The new blend composition contains a methacrylate matrix resin, particles of a single layer polymer, and, optionally, an acrylic multi-layer polymer. Particles of the single layer polymer derived from 50% or more methyl methacrylate, and having weight average molecular weight (Mw) at least 120% of the Mw of the methacrylate matrix resin component of the blend, the particles having a diameter of from 50 to 500 nanometers, have been discovered to confer a solvent craze resistance value to the methacrylate resin blend which is at least twice the solvent craze resistance value of the methacrylate resin absent particles of the single layer polymer. Solvent craze resistance of the blend may be improved by as much as 10-fold or more over the solvent craze resistance of the methacrylate matrix resin alone.
Patent CA-2196007-C (CA)
Title: Variable frequency resonator, variable frequency oscillator, and variable-frequency filter
Inventor: ISHIKAWA YOHEI
IPC: H01P1/203
Filed: 1997-01-27
Granted: 2000-06-06
Abstract: A variable-frequency resonator has a dielectric strip serving as a main line and a dielectric strip serving as a sub line. A dielectric resonator is disposed therebetween, and a diode board is disposed at an intermediate point of the dielectric strip serving as the sub line. The electrical length of the sub line is switched according to the electrically conductive/open state of the diode. With this switching, the resonant frequency of the dielectric resonator is changed. Therefore, a variable-frequency resonator having a high Q value, a variable-frequency oscillator having a high C/N ratio, and a variable-frequency filter having low loss are implemented.
Patent CA-2205727-C (CA)
Title: Asymmetric hip stem
Inventor: NOBLE PHILIP C
IPC: A61F2/30
Filed: 1997-05-20
Granted: 2002-06-11
Abstract: An improved asymmetric femoral hip stem component for use in cementless hip replacement procedures is described.  The stem comprises a proximal region having a novel three-dimensional configuration to allow for better fit and stability of the stem within the femoral intramedullary canal with minimal removal of strong bone therefrom.  The stem further includes a twist isolated in the mid-stem region to improve fit while minimizing enlargement of the femoral canal.  A distal end comprising a rotated internal slot is also described, wherein the slot reduces bending stiffness of the stem in both the coronal and sagittal planes.