baber/WOPTO huggingface dataset:
Patent CA-2243759-A1 (CA)
Title: Fluorescence detection assay for homogeneous pcr hybridization systems
Inventor: DI CESARE JOSEPH L
IPC: C12Q1/68
Filed: 1997-01-31
Abstract: An improved assay system for homogeneous assay detection and/or measuring target nucleic acid sequence replicated in a PCR amplification procedure is provided by employing a nucleic acid polymerase having 5' to 3' exonuclease activity and devoid of 3' to 5' exonuclease activity, oligonucleotide analytical probe blocked against chain extension at its 3' terminus and labeled at its 5' terminus with an energy transfer donor fluorophore, and oligonucleotide detection probe labeled at its 3' terminus with an energy transfer acceptor fluorophore, said probes being complements of each other but differing in nucleotide length so that their Tm's are at least 10 ~C apart, the Tm of the oligonucleotide analytical probe is equal to or greater than the Tm's of the oligonucleotide primers used in the PCR amplification procedure and the Tm of the oligonucleotide detection probe is lower than the temperature required to conduct the PCR thermal cycling steps of the PCR  amplification procedure so that during the PCR thermal cyclic steps 5' fluorophore labeled nucleotide fragments are produced during the PCR extension phase by the 5' to 3' exonuclease activity of the nucleic acid polymerase on oligonucleotide analytical probe annealed to denatured strands of the target nucleic acid sequence. Detection of measurement of either (a) the 5' fluorophore labeled nucleotide fragments produced during the thermal cyclic steps and measured by fluorescence polarization or (b) oligonucleotide analytical probe hybridized to oligonucleotide detection probe measured spectrophotometrically by energy transfer measurement, provide a measure of the amount of oligonucleotide analytical probe used up in the amplification of the target nucleic acid sequence and thus provide a measure of amount of target nucleic acid sequence amplified in the PCR replication procedure.
Patent CA-2244697-A1 (CA)
Inventor: DORIAN RANDEL
IPC: A61B17/00
Filed: 1997-02-03
Abstract: This invention is a device and method for applying fibrinogen based tissue sealant to connect tissues or organ parts, seal wounds, or stop bleeding by mixing fibrin or fibrinogen with blood clot promoting coagulation factors. The device includes two cylindrical compartments (1, 8) for separately containing the fluid components of the sealant preparation, which are simultaneously displaced from the compartments by commonly depressible plungers (6, 9), which may be depressed directly or using common mechanism (3) for controlling the rate of dispensing fluid. The cylindrical compartments have the same or different cross-sectional areas and are arranged concentrically or side by side. The device further includes means (4) for merging the two fluid components within an outer sleeve housing (25), an inner needle (22) which contain conduits for the flow of the two fluid sealant components as they are expressed from their respective compartments. Also disclosed are means of filling the two compartments for mixing the fluid components, and for atomizing the effluent sealant fluid stream.
Patent CA-2245103-A1 (CA)
Inventor: HEPWORTH PAUL STEABBEN
IPC: B28D1/22
Filed: 1998-08-14
Abstract: A tile cutter (Figure 3) has a base moulding (11) of plastics material, the base moulding defining a surface for reception of a tile to be cut/broken and spaced upstanding ends (13, 14), cutting/breaking forces generated during use being resisted/absorbed by a steel bar (33) extending between the ends (13, 14) underneath the tile reception surface, metallic guide rods (31, 32) extending between the ends above the tile reception surface, and a steel connecting plate (27) received in the one of said ends adjacent where tile cutting/breaking takes place, in use, the guide rods carrying slidable scoring and cutting/breaking means, and the connecting plate interconnecting the bar (33) and rods (31, 32) without fixing means. A breaker rod (25) can be fitted in the base surface immediately above the position of the bar (33).
Patent CA-2245897-A1 (CA)
Title: Flanged graft for end-to-side anastomosis
Inventor: KRUEGER ULF
IPC: A61F2/06
Filed: 1996-02-28
Abstract: An expanded polytetrafluoroethylene flanged vascular graft (10) suitable for end-to-side anastomosis grafting having an integral terminal polytetrafluoroethylene flanged skirt or cuff section (12) which facilitates an end-to-side anastomosis directly between an artery and the expanded polytetrafluoroethylene flanged bypass graft (10) without need for an intervening venous collar or venous patch.
Patent CA-2246353-A1 (CA)
Inventor: FLECK CARL MARIA
IPC: F01N3/02
Filed: 1997-02-10
Abstract: The invention relates to a device for the cleaning of exhaust gases from internal combustion engines, in particular a diesel exhaust soot filter. Said device has a discharge electrode (8), a counterelectrode (28) opposite thereto for electrical charging of the exhaust gas components, a ceramic structure (1) with a circular cross-section and ducts (20) extending therethrough in the direction of flow, and an internal electrode (5) at high voltage. This electrode is arranged on the inner cylinder wall (21) of the ceramic structure (1) and creates an electrical field at right angles to the ducts (20) passing through said ceramic structure. The soot particles are deposited and oxidised on the walls of the ducts (20), and a separation is provided to prevent flow through the hollow internal space (22) of the ceramic structure (1). To prevent the formation of conductive soot bridges between high-voltage-conducting components and earth the separation of the hollow internal space (22) of the ceramic structure (1) is an electrical insulator, preferably a ceramic stopper (4), arranged at the inlet side of the gas stream.
Patent CA-2246493-A1 (CA)
Inventor: WESTFALL DAVID L
IPC: C07C67/08
Filed: 1998-09-04
Abstract: The present invention is directed to a process for preparing a condensation product of a glyoxylic reactant and a hydrocarbyl-substituted aromatic compound having at least one hydroxy functionality, which includes (a) providingthe glyoxylic reactant in the form of a compound represented by the formula (see fig. I) or its reactive equivalent, wherein R1 and R3 independently are hydrogen or hydrocarbyl group of 1 to about 4 carbon atoms; and R2 and R4 independently are hydrocarbyl groups of 1 to about 4 carbon atoms; (b) mixing the aromatic compound with the glyoxylic reactant; and (c) heating the mixture to a temperature of about 50°C to about 200°C in the presence of an acid catalyst for a sufficient time to form the condensation product.
Patent CA-2247865-A1 (CA)
Title: Door lock arrangement
Inventor: HEITHE MICHAEL E
IPC: E05B63/04
Filed: 1998-09-25
Abstract: A door lock arrangement comprising a frame, a door handle, a slidable deadbolt arrangement, a depressable trigger member for releasing the slidable deadbolt, a deadbolt driver for sliding the deadbolt to its extended position when triggered, and a bidirectional retraction assembly, whereby rotation of the door handle in either direction moves the deadbolt from the extended position to the retracted position.  In another aspect of the invention, there is provided a door lock arrangement comprising a frame, a door handle, a slidable deadbolt arrangement, a depressable trigger member for releasing the slidable deadbolt, a deadbolt driver for sliding the deadbolt to its extended position when triggered, and a retraction assembly comprising a retraction arm having a nose portion which interferes with a part of the deadbolt when the deadbolt attempts to return to its retracted position, thereby reliably and securely blocking retraction of the deadbolt and frustrating any tampering attempt to move the deadbolt back into the fixture with a tool pressing against the distal end of the deadbolt. The door handle releases the blocking effect of the retraction arm and, simultaneously, draws the deadbolt rearwardly into its retracted position.
Patent CA-2248443-A1 (CA)
Inventor: BONVALLAT PIERRE
IPC: H01R4/24
Filed: 1998-09-25
Abstract: This invention relates to a module, made in one and the same piece, intended for interconnecting two monopair lines, typically two telephone or computer-related lines. It brings together in one module an alignment of three functional zones: a first functional zone of connection of the two "large wires" by I.D.C. and pusher with screw, a second functional zone comprising a test and possibly protection chamber closed by a cut-off lid, and a third functional zone comprising two I.D.C.'s for connection of the "small wires" and a connection pusher.
Patent CA-2249035-A1 (CA)
Title: Decimation of baseband dtv signals prior to channel equalization in digital television signal receivers
Inventor: LIMBERG ALLEN LEROY
IPC: H04N19/89
Filed: 1998-09-29
Abstract: A radio receiver uses the same tuner for receiving a selected digital television (DTV) signal, irrespective of whether it is a quadrature-amplitude-modulation (QAM) or a vestigial sideband (VSB) signal. The final IF signal is digitized at a rate that is a multiple of both the symbol frequencies of the QAM and VSB signals, for synchrodyning to baseband. The carrier frequencies of the QAM and VSB final IF signals are regulated to be submultiples of the multiple of both the symbol frequencies of the QAM and VSB signals by applying automatic frequency and phase control (AFPC) signals developed in the digital circuitry to a local oscillator of the tuner. Baseband DTV signals obtained by synchrodyning the final IF signals have a sample rate higher than symbol rate to facilitate symbol synchronization. The baseband DTV signals are decimated to symbol rate before performing channel equalization to reduce the number of multipliers required in the channel equalization filter.
Patent CA-2249284-A1 (CA)
Title: Singulating apparatus for a mail handling system
Inventor: YAP ANTHONY E
IPC: B65H3/52
Filed: 1998-10-01
Abstract: A singulator apparatus includes a forwardly driving device and a reverse driving mechanism which operate together to separate individual articles from a stack of articles being transported thereto from an upstream feeding device. The singulator further includes a sensor which detects the presence of articles at the articles ingestion nip defined between the forwardly driving device and the reverse driving mechanism. A controller stops operation of the feeding device upon detection of the presence of articles by the sensor and initiate feeding by the feeding device if no articles are sensed by the sensor.
Patent CA-2251999-A1 (CA)
Title: Glycerolipidic compounds used for the transfer of an active substance into a target cell
Inventor: HEISSLER DENIS
IPC: C12N15/87
Filed: 1998-02-10
Abstract: The invention concerns novel of compounds of formula (I) in which: R¿1? and R¿2?, identical or different are C¿6?-C¿23? alkyl or alkenyl radicals, linear or branched or -C(=O)-(C¿6?-C¿23?) alkyl or -C(=O)-(C¿6?-C¿23?) alkenyl, linear or branched. X is the oxygen atom or an amino -NR¿3? radical, R¿3? being a hydrogen atom or an inferior alkyl radical of 1 to 4 carbon atoms; n is a positive whole number from 1 to 6; m is a positive whole number from 1 to 6, and when n > 1, m can be identical or different. The invention also concerns novel compositions of said compounds and of active substances in particular therapeutically, comprising at least a negative charge for inserting said active substances in cells. It concerns in particular novel complexes, of which the active substance consists of one or several nucleic acids, useful for cell transfection.
Patent CA-2253033-A1 (CA)
Title: High-low pressure hermetic compressor
Inventor: FRY EMANUEL D
IPC: F04B39/02
Filed: 1998-11-06
Abstract: A compressor assembly includes a compressor mechanism mounted within a hermetically sealed housing. The housing is effectively divided into a low pressure area at a relatively low temperature and a high pressure area at a relatively high temperature. A motor and a lubrication system are contained within the low pressure area and the discharge side of the compressor mechanism is disposed in the high pressure area. A cylinder block effectively separates the high and low pressure areas of the compressor. The lubrication system includes an axial passage for communication oil from a sump to various compressor components, including rotational bearings. A seal cap is disposed at the end of the crankshaft that extends into the high pressure area and in combination with the cylinder block defines an oil discharge chamber at low pressure and isolated from the high pressure area. A  second vent passage formed in the upper end portion of the crankshaft provides a communication path between a suction cavity formed in the compressor mechanism and the oil discharge chamber within the seal cup. A pressure drop caused by the reciprocating action of the pistons in the compressor mechanism occurs at the oil discharge area formed in the seal cup thereby assisting the oil pump in drawing oil through the oil passage in the crankshaft. An acoustic insulator is provided intermediate the compressor mechanism and a mounting flange to isolate and reduce vibration and noise which occurs during compressor operation.
Patent CA-2255493-A1 (CA)
Title: Photochemical agent for use as a glue
Inventor: BLACK MICHAEL DARRYL
IPC: A61L24/02
Filed: 1998-12-09
Abstract: A physiologically suitable, non-toxic photochemical agent for use as a glue to bind a synthetic material to tissue and tissue to tissue is disclosed wherein the agent is activated by exposure to electromagnetic radiation.
Patent CA-2257560-A1 (CA)
Title: Li reclamation process
Inventor: MCLAUGHLIN WILLIAM
IPC: C01D15/02
Filed: 1998-12-29
Abstract: Li batteries are cryogenically cooled, comminuted and reacted with water having its pH adjusted with the addition of LiOH. The resulting salts are substantially dewatered and optionally further purified in an electrolytic cell to yield substantially uncontaminated LiOH for reuse.
Patent CA-2258455-A1 (CA)
Inventor: KALBASSI MOHAMMAD A
IPC: B01J19/32
Filed: 1999-01-13
Abstract: A liquid-vapor contact column is packed with at least one layer formed of a plurality of structured packing sheets orientated to provide liquid-vapor contact in the axial direction of the column and arranged so that, viewed in the axial direction of the column, packing sheets in the body of the layer are in one or more sections in which at least one band surrounds a central core, said band being formed of segments in which the packing sheets in each segment extend rectilinearly in a different direction to those in the adjacent segments in the same band.  The packing sheets in the body of the or each layer can be arranged in a plurality of abutting sections or in a single section.
Patent CA-2260300-A1 (CA)
Inventor: CLARKE GREGORY A
IPC: A47G1/16
Filed: 1999-01-25
Abstract: A track system for suspending a wall hanging on a wall surface comprises a track, a plurality of longitudinally spaced connectors, and at least one carriage having a suspending device. Each connector consists of a threaded sleeve, a pair of nuts, a washer, a wood screw and a center point guide to protect the wall surface. Each threaded sleeve is dimensioned to fit within a corresponding aperture in the back wall of the track and to receive a pair of nuts on its threaded outer surface. The nuts are positioned on the threaded sleeve on either side of the track's back wall so that the back wall is securely gripped between the nuts. The lateral offset distance between the back wall of the track and the wall surface can be adjusted by changing the relative position of the nuts on the threaded sleeve so as to compensate for any irregularities in the wall surface. The carriage has a carriage body adapted to slidably engage the track along its length and a clamp for releasably locking the carriage body against the track depending on whether lateral pressure is applied to the finger grip. The carriage's suspending device is attached to the bottom of the carriage body and comprises a hook and a hook position adjuster. The position adjuster comprises a guide block, a hook bracket, an adjusting screw and a casing.      The casing is dimensioned to receive the guide block, the hook, the hook bracket and the adjusting screw. The hook is positioned within casing such that when adjustable screw is turned, the hook can be laterally positioned towards or away from the wall surface.
Patent CA-2262911-A1 (CA)
Title: Method and apparatus for the downhole metering and control of fluids produced from wells
Inventor: BOWERS BILL E
IPC: E21B47/10
Filed: 1997-08-01
Abstract: In a broad aspect, the invention is a method and apparatus for the downhole metering and control of fluids injected into a subterranean formation, and comprises: a housing (12) sealably connectable to a well tubing; a turbine meter (18) disposed in the housing which provides an indication of flow rate therethrough to a control panel at the surface; and a variable orifice valve means (24) in the housing which alternately permits, prohibits, or throttles fluid flow therethrough.  The system has a communication link to the surface, an onboard motor (35) which powers a hydraulic system in the housing (12) that controls the throttling action of the variable orifice valve means (24), and a system to monitor and report downhole pressure and temperature. The system has the option of reversing the action of the turbine to monitor production from the subterranean formation.
Patent CA-2265876-A1 (CA)
Title: Electrically conductive polyether polyurethanes
Inventor: RICCI VINCENT
IPC: C08K5/098
Filed: 1997-08-29
Abstract: A process is disclosed for making an electrically conductive polyurethane elastomer from a polyether polyol prepolymer by blending an isocyanate terminated polyalkyleneether polyol prepolymer, preferably TDI and MDI  terminated polyalkyleneether polyol, with conductive metallic salts such as CuCl2 dispersed in a prepolymer-miscible carrier, preferably tri(betachloropropyl)phosphate, thus providing a cured polymer with good conductivity while retaining its performance properties.
Patent CA-2267822-A1 (CA)
Inventor: TEICHBERG IRA
IPC: B42D1/00
Filed: 1999-03-31
Abstract: A children's book including a front cover, a back cover, and at least one leaf positioned between the front cover and the back cover. A spine portion of the book connects the front cover, the leaf and the back cover. The book further includes at least one attachment arrangement and at least one rotation member. The front cover, the leaf, and/or the back cover has at least one cut-out portion. The rotating member is rotatably connected to a respective front cover, back cover and/or leaf by positioned within the cut-out portion using the attachment arrangement so that the rotating member is rotatable about an axis extending along a plane of the book.
Patent CA-2268650-A1 (CA)
Inventor: QU YUZHI
IPC: F24V30/00
Filed: 1997-10-24
Abstract: A superconducting heat transfer medium (6) that has three basic layers (20,22,and 24), the first layer (20) being various combinations of metals and dichromate radical; the second layer (22) formed over the first layer (20) and being various combinations of metals such as cobalt, manganese, beryllium, strontium and the dichromate radical; and the third layer (24) formed over the second layer (22) and being various combinations of metal oxides, dichromates, monocrystalline silicon, strontium chromate, and p-titanium. The three layers (20,22 and 24) can be applied to a conduit (4) and then heat polarized to form a superconducting heat transfer device (2) that transfers heat without any net heat loss, or can be applied to a pair of plates having a small cavity relative to a large surface area to form a heat sink.(18) that can immediately disperse heat from a heat source.
Patent CA-2269994-A1 (CA)
Title: 7-hetero-bicyclo¬2.2.1|-heptanes
Inventor: BUNDESMANN MARK WERNER
IPC: A61P25/30
Filed: 1999-04-23
Abstract: Disclosed are compounds of the formula:   (see formula I) (wherein R1, R2, R3 and R4 are each H, -CO2R5, optionally substituted aryl or optionally substituted heteroaryl; R5 is alkyl, aryl, arylalkyl or heteroarylalkyl; and R6 is H or alkyl) and their pharmaceutically acceptable salts, intermediates in the synthesis of such compounds, pharmaceutical compositions containing such compounds and methods of using such compounds in the treatment of neurological and psychological disorders.
Patent CA-2270498-A1 (CA)
Title: An attachment clip
Inventor: LAN YUNG HUI
IPC: A45F5/02
Filed: 1999-04-29
Abstract: An attachment clip comprising a body portion having an outer plate and an inner plate, the outer plate having a lower end provided with a hook portion, a movable plate movably fitted between the outer plate and the inner plate, and a driving means whereby the hook portion keeps an object in place and prevents the object from inadvertent droppage, and the driving means moves the movable plate upwardly to keep the object from being hooked by the hook portion thereby enabling the object to be readily disengaged from the attachment clip.
Patent CA-2271480-A1 (CA)
Inventor: JOHN JOHNNY K
IPC: H04M1/725
Filed: 1997-11-13
Abstract: L'invention concerne un nouvel appareil amélioré et un nouveau procédé amélioré pour réaliser une interface pour un système de radiotéléphone numérique compatible avec les téléphones filaires analogiques conventionnels et les appareils de transmission de fac-similés fonctionnant sur des lignes conventionnelles pour téléphones analogiques. Durant un appel téléphonique un détecteur (11) de transmission d'un fac-similé surveille les données d'entrée en vue d'y déceler des données de fac-similé. Lorsque de telles données sont détectées, le processeur de données (12) commute de la réception de données vocales à la réception de données de fac-similé. En outre, le poste d'appel reçoit un signal lui demandant de traiter les données comme un fac-similé et non pas comme des données vocales. Le détecteur (11) de transmission de fac-similé fonctionne par la détection d'un préambule d'un message V.21 présent au début de chaque transmission de fac-similé. L'énergie est mesurée aux deux fréquences des signaux BFSK. Une décision est prise à partir de l'analyse de ces énergies et de l'identification d'un motif spécifique qui se répète un nombre suffisant de fois.
Patent CA-2273057-A1 (CA)
Inventor: PARK TAE JIN
IPC: G05D1/02
Filed: 1997-12-01
Abstract: A PRT (personal rapid transit) system, utilizing both course reservation and branch stop technologies and radically solving the various problems experienced in conventional roadway systems, conventional railway systems and prior art APM or PRT systems, is disclosed. The PRT system of this invention has tunnel-type dedicated guideways (11) located aboveground, groundlevel or underground and is computer-controlled, thus allowing small-sized and standardized PRT vehicles (3) to run along the guideways (11) at high speeds without having any congestion delays. The PRT system thus remarkably increases transit capacity and transit efficiency, provides a comfortable and rapid transit means and radically solves traffic congestion in a large metropolitan region.