baber/WOPTO huggingface dataset:
Patent CA-2139362-A1 (CA)
Title: Novel intermediate for synthesis and production of amino acid derivative
Inventor: KAGARA KOOJI
IPC: C07D233/54
Filed: 1993-06-28
Abstract: A novel synthetic intermediate (II) useful for preparation of compound (I) possessing renin-inhibitory activity, and processes for preparing the compound (I) using said intermediate (II), which is schematically shown in the following:           +        (II)             (III) Elimination of the      N-protective group if necessary (I) wherein R1 is lower alkyl which may be substituted by a group of the formula -N(R7)-CO-N(R8)(R9) (wherein R7 is hydrogen or lower alkyl, and R8 and R9 together with the attached nitrogen atom form a heterocyclic group optionally substituted), or the like; R2 is hydrogen, lower alkyl, or the like; R3 is hydrogen or lower alkyl; R4 is hydrogen or an N-protective group; R5 is hydrogen or a carboxy-protective group; and R10 is lower alkyl.          The process via the intermediate (II) of the present invention is industrially advantageous in that it affords the final product (I) at high yields from cheaper starting materials as compared with the conventional methods, and that a remarkable reduction of preparation cost can be achieved.
Patent CA-2140199-A1 (CA)
Title: Method for controlling the electrical arcing of the x-ray detector plate
Inventor: DIVIGALPITIYA RANJITH
IPC: G03G5/14
Filed: 1995-01-13
Abstract: A detector plate for use in a radiation imaging system includes a first conductive layer, a dielectric layer, a photoconductive layer and a second conductive layer, arranged as a stack in that order.  The first conductive layer and the dielectric layer are substantially transparent to radiation energy so as to allow the energy to pass therethrough to be received by the photoconductive layer.  The first conductive layer has a periphery defined by a first edge and the dielectric layer has a periphery defined by a second edge, wherein the first edge is offset inward of the second edge defining a margin between the first and second edges.  In use, this margin helps inhibit electrical arcing from the first conductive layer to the second conductive layer when a high voltage is applied between these two layers.  A preferred embodiment of the detector plate includes an electrically insulative barrier of silicone based Sylgard in the margin around the periphery of the first conductive layer in the form of a "dam" to further prevent arcing and resulting detector plate failure.          It is also preferable to include a linear contact on the first conductive layer adapted to connect a high voltage electrode of a power supply to the first conductive layer.          The first conductive layer is more stable with the linear contact, as compared to a conventional circular contact.
Patent CA-2143020-A1 (CA)
Title: Delivery system for aqueous paste dental materials
Inventor: WILCOX MALCOLM W
IPC: A61C9/00
Filed: 1995-02-21
Abstract: A cartridge for delivery of aqueous paste dental materialsis provided, wherein the cartridge comprises a cartridge body made from an injection moldablematerial comprising polyolefin polymers. The cartridge body having a Moisture Permeability less than 25 g mil/m2 day atm. and an Oxygen Permeability greater than 180 cm3 mil/m2 day atm. The cartridge body comprises at least one chamber adapted for holding and simultaneously dispensing an aqueous paste dental material. The cartridge has a polymerizable aqueous paste dental material contained withinthe chamber of the cartridge body, and the cartridge is specially adapted to be mounted in a hand-held ejector-type gun.
Patent CA-2143947-A1 (CA)
Title: Pinch valve
Inventor: COLE GEORGE S
IPC: F16K7/06
Filed: 1993-10-28
Abstract: A pinch valve (10) includes a generally tubular housing (11) including coupling members (12) respectively defining coaxial passages (20) therethrough and adapted for coupling to associated conduits. The passages (20) have tapered seating surfaces (24) which respectively receive the opposite ends of a flexible, resilient, tubular valve member (50). A two-part housing body (31) is ultrasonically welded together for clamping the coupling members (12) in position and defining a cavity (40) receiving the valve member (50) and an opening into the cavity (40). The body (31) pivotally supports a valve lever (45) which projects out of the opening and is movable between an open position leaving the valve member (50) unconstricted and a closed position pinching the valve member (50) closed. In a dual-valve embodiment (60), two of the valves (10A) ate supported in parallel relationship at opposite ends of a bridge member (65).
Patent CA-2145309-A1 (CA)
Title: Thoracentesis sheath catheter assembly
Inventor: SCARFONE FRANK A
IPC: A61B17/34
Filed: 1993-09-22
Abstract: A thoracentesis sheath catheter assembly (102) includes a catheter (106) connected to a valve body (108). The valve body is provided with a throughbore (109) coaxial to the catheter for receiving a thoracentesis needle (105) therethrough and a drainage bore in fluid communication with the first throughbore. The valve body is constructed as a first cylindrical portion (110) which is connected to the catheter and a second cylindrical portion (112) of larger inner diameter which is joined to the first cylindrical portion by a tapered inner wall (111). The second cylindrical portion contains a valve comprising a blocking ball (114) and a spring biased plunger (116) having a throughbore (117) coaxial to the catheter, and is closed with a cap (120) having a central hole (122) and/or a gasket for sealingly receiving the thoracentesis needle. A thoracentesis needle extends through the hole of the cap, the gasket, the plunger, the first cylindrical portion and into and through the catheter. With the thoracentesis needle in place, communication between the throughbore and the drainage bore (125) is blocked and a flow path is established through the nee-dle. When the needle is removed, the throughbore is automatically obstructed by movement of the ball by the plunger along the tapered inner wall. However, a second fluid path is automatically established from the throughbore to the drainage bore.
Patent CA-2150217-A1 (CA)
Title: Saddle support, especially for a bicycle
Inventor: ZURFLUH LOUIS
IPC: B62K21/22
Filed: 1995-05-25
Abstract: A saddle support (10), in particular for a bicycle, with an outer pipe casing (15) that can be positioned in an open pipe (13) of the bicycle frame (12), has a first piston-cylinder unit (20) for the resilient and a second piston-cylinder unit (40) for the height adjustment of a saddle (16), whereby the piston rod (22) of the first piston-cylinder unit (20) holding the saddle (16) on the upper end is conducted shiftably inside a sheath-shaped piston rod (19) of the second piston-cylinder unit (40) which can be moved in the pipe casing (15). These piston rods (19, 22) thus can be fixed to the pipe casing (15) each by means of a clamping device (30, 30'), and each is provided with a valve (26, 27) for adjusting the pressure of the medium in the chambers (24, 25) of both piston-cylinder units (40). This saddle support (10) makes a resilience and height adjustment of the saddle possible, which can be changed while riding.
Patent CA-2150547-A1 (CA)
Title: A container comprising a tray-shaped bottom part and a cover part
Inventor: SCHULZ WERNER
IPC: B65D17/34
Filed: 1993-12-16
Abstract: A container comprises a tray-shaped bottom part (1) with an opening covered by a cover part. The cover part is sealed to the bottom part along a circumferential rim (10) thereof to form a sealed compartment. The cover part comprises a first cover sheet (2) sealed to the bottom part (1) along a portion (11) of the rim (10) thereof, and a second cover sheet (3) peelably sealed to the first cover sheet (2) and to the bottom part (1) along the remaining portion (12) of the rim (10) thereof. The resulting container is easy to open and to handle without risk of spilling the contents thereof.
Patent CA-2150588-A1 (CA)
Title: Multiple finned tube and a method for its manufacture
Inventor: SCHUEZ GERHARD
IPC: B21C37/20
Filed: 1995-05-31
Abstract: A metallic finned tube having multiple fins integrally formed on and extending helically on an outside of the tube. The fins number at least four and begin at fin run start locations spaced evenly about a circumference of the tube, with at least one group of side-by-side helical fins being formed which begin at substantially the same circumferential fin run start location on the tube exterior. The method of the invention assures an economical manufacture of the finned tube embodying the invention.
Patent CA-2154061-A1 (CA)
Title: Textured, porous, expanded ptfe
Inventor: KOWLIGI RAJAGOPAL R
IPC: B29C48/10
Filed: 1994-01-12
Abstract: A more porous PTFE is obtained by impressing a pattern into extruded PTFE and then expanding the PTFE. The pattern can be impressed by knurling or, preferably, by rolling the sheet between rollers having a pseudo-random pattern formed on the surface of the roller. The uniformity of the pores is controlled by the pattern; viz. a coarse pattern produces a wider distribution of internodal distances than a finer pattern.
Patent CA-2155644-A1 (CA)
Title: Self loading peristaltic pump tube cassette
Inventor: AFFLERBAUGH RICHARD L
IPC: A61M1/02
Filed: 1994-03-17
Abstract: A self-loading peristaltic pumping apparatus includes a pump race (296) for receiving a tubing loop, a pump rotor (298) carrying a roller (300), and a drive mechanism for rotating the rotor within the pump race. The apparatus also includes a roller locating mechanism (306) that moves the pump roller between a retracted position, free of contact with the received tubing loop (134, 136), and an extended position, at least partially within the pump race for operative contact with the received tubing loop. The apparatus includes at least one tubing guide element (304) carried by the rotor. The guide element extends from the rotor at least partially into the pump race. The guide element serves during rotation of the rotor with the roller in its retracted position, for contacting the received tubing loop (134, 136) to orient the tubing loop within the pump race.
Patent CA-2157708-A1 (CA)
Title: Adaptive finite impulse response filtering method and apparatus
Inventor: DE LEON PHILLIP LOUIS II
IPC: H04M9/08
Filed: 1995-09-07
Abstract: The present invention provides a signal processing method and apparatus including a digital finite impulse response filter wherein the error caused by slow asymptotic convergence of the filter's adaptive coefficients is reduced.  According to one embodiment of the present invention, a first input signal is provided to an adaptive FIR filter comprising a coefficient calculator, an FIR filter and a summation device.  The filter also receives a second input signal, which may, for example, be the echo of the first input signal.  The first input signal and the second input signal have a first bandwidth.  The adaptive FIR filter then provides an output signal to a filter, which then filters the output signal to a second bandwidth which is less than the first bandwidth.  The processed signal will have less error caused by the slow asymptotic convergence of the filter than previously possible because the error-concentrated frequency components near the band edge of the first frequency band have been filtered or removed.
Patent CA-2159836-A1 (CA)
Title: Process for preparing .beta.-lactames
Inventor: BOURZAT JEAN-DOMINIQUE
IPC: C07D205/08
Filed: 1994-04-14
Abstract: A method for preparing 3-hydroxy (3R,4S)-2-azetidinones of general formula (Ia), and the use thereof for preparing taxoids, are disclosed. In general formula (Ia), Ar is an aryl radical.
Patent CA-2160111-A1 (CA)
Title: Method for neutralizing waste
Inventor: HOLDING HAS
IPC: A62D3/38
Filed: 1994-03-25
Abstract: Method for neutralizing waste, such as powder from luminescent tubes and similarly, residue from incineration of household waste, optionally comprising environmentally hazardous components, such as Hg, Cd, Zn, Co or Ba. The waste is fed into a melting furnace in conjunction with an SiO2-rich material, and a reducing agent, and in a first optional step, the furnace is operated at reducing conditions and at a temperature effecting reduction of heavy metals and any other compounds in the raw material, whereby the reduced heavy metal and other components are withdrawn from the furnace with the exhaust gas and are separated from the same, and in a second step the furnace is operated at oxidizing conditions and at a temperature ensuring oxidation of remaining elements in the slag present in the furnace from said first step, whereby the slag becomes, at least gradually, of low viscosity, and the molten slag is drained from the furnace and solidified, optionally die casted and/or water granulated, thus forming inert glassified slag.
Patent CA-2161141-A1 (CA)
Title: Improved process for resin transfer molding
Inventor: WHITE WARREN D
IPC: C08J5/24
Filed: 1994-04-15
Abstract: An improved process to make composites comprises the steps of: (1) contacting a substrate with a thermoplastic partially-cured curable tackifier resin at above the glass-transition temperature to form a preform; (2) adding a matrix resin that can dissolve the tackifier or that is essentially identical to the tackifier and co-curing the tackifier and matrix resin to form a composite. The resulting composites are useful in structural applications.
Patent CA-2161406-A1 (CA)
Title: Set of stacking pots
Inventor: KLOPPSTECK GERD
IPC: A47J27/00
Filed: 1993-09-30
Abstract: Set of stacking pots (10) with a plurality of pots which may be stacked within one another in a space-saving manner, particularly cooking pots (12; 14; 16; 18; 20) of different  sizes  of  which  at  least  a proportion is provided with handles and whose diameter and height decreases from the lowermost pot (12) in the stack to the uppermost pot in the stack such that a pot to be inserted into a preceding pot in the stack rests directly or indirectly on the upper edge of the preceding pot with its  two handles which are provided on diametrically opposed sides in the region of its upper edge.
Patent CA-2162485-A1 (CA)
Title: Toxin gene from xenorhabdus nematophilus
Inventor: SMIGIELSKI ADAM JOSEPH
IPC: A01N63/50
Filed: 1994-06-24
Abstract: Purified insecticidal toxins and biologically active fragments thereof, and polynucleotide molecules encoding same, from the bacteria Xenorhabdus nematophilus are described.
Patent CA-2165020-A1 (CA)
Inventor: MEYER GEORGE WILLIAM JR
IPC: H04M11/00
Filed: 1995-12-12
Abstract: A cellular speakerphone (100) includes a housing (101) containing a transceiver circuit (203), a processor and switching circuit (205), a coupler (209), and a hands-free user interface (207).  The processor and switching circuit (205) and the hands-free user interface (207) operate the cellular speakerphone (100) in a default hands-free mode that is automatically interruptable to permit the cellular speakerphone (100) to operate in a handset mode when an optional handset (127) is operably coupled to the cellular speakerphone (100) via the coupler (209).
Patent CA-2172470-A1 (CA)
Title: Method for removing borehole rugosity noise from well log data
Inventor: KEYS ROBERT GENE
IPC: G01V9/00
Filed: 1996-03-22
Abstract: A method for eliminating sinusoidal noise without affecting the response of the formation means that the actual formation responses of the logging tools are recovered, and the logs can be used quantitatively. Removal of sinusoidal noise from a log is accomplished in three steps.  First, the log is reduced to a zero-mean, stationary series.  Second, the wavenumber of the sinusoidal noise is identified by its peak in the Fourier amplitude spectrum.  And third, the noise is removed by applying a zero-phase notch filter.  In order to preserve the quantitative data integrity, the low wavenumber trend is kept.  Preserving the quantitative data integrity is accomplished by approximating the log with a least-squares cubic spline which retains the overall log character, ignoring the sinusoidal noise.  A zero mean stationary series is formed by subtracting the least-squares cubic spline from the data.  The remaining steps, Fourier analysis and filtering are performed on the difference series.  Recombining the filtered series with the spline restores the log data without the sinusoidal noise.
Patent CA-2174646-A1 (CA)
Title: Apparatus and method for a breadmaking machine
Inventor: ANDERSON RICHARD M
IPC: A21C1/00
Filed: 1994-10-19
Abstract: An apparatus and method for making bread according to a predetermined ingredient recipe having a grain supply bin (12), a grinder for the grain (16), a dry ingredient supply (35, 36), and a wet ingredient supply (70). A processing unit (18) selectively introduces predetermined amounts of the grain and the wet/dry ingredients into a mixing chamber (14) The dough mixture produced is conveyed through proofing (88) and baking (92) steps.
Patent CA-2175450-A1 (CA)
Title: Fibre optic couplers
Inventor: ELIAS MARTIN CHARLES
IPC: G02B6/28
Filed: 1994-11-10
Abstract: A fused fibre optic 1 x 4 or 2 x 4 coupler in which four optical fibre segments (A, B, C, D) extend longi-tudinally beside each other in a cou-pling region in which the fibre seg-ments are at least partially fused to-gether to form an assembly exhibiting a close packed cross section in which the fibre cores (11) are centered sub-stantially at the corners of a four-sided polygon having a pair of opposite in-ternal acute angles substantially less than 90°.
Patent CA-2176324-A1 (CA)
Title: Procede d'identification bacterienne et de determination de la sensibilite de bacteries a des antibiotiques et appareil et supports de mesure pour la mise en oeuvre de ce procede
Inventor: BAJARD JEAN
IPC: C12M1/34
Filed: 1996-05-10
Abstract: La présente invention concerne un procédé d'identification bactérienne et de détermination de la sensibilité de bactéries à des antibiotiques, ainsi qu'un appareil et des supports de mesure pour la mise en oeuvre de ce procédé. Procédé consistant à introduire manuellement, au moyen d'un outil de prélèvement et de transfert, un volume donné de colonie bactérienne dans un récipient primaire (101) à réaliser automatiquement la dispersion de cette colonie bactérienne au sein d'un liquide pour constituer un inoculum précalibré dans ledit récipient primaire (101), à effectuer également automatiquement des transferts totaux ou partiels de cet inoculum précalibré entre ledit récipient primaire (1) et un ou plusieurs supports de mesure (104, 105), lesdits transferts étant réalisés sans que l'inoculum précalibré soit mis en contact avec un élément autre que, d'une part, un outil de prélèvement et de transfert (101'; 101) et/ou le récipient primaire (101) et, d'autre part, son ou ses supports de mesure finaux (104, 105) et de telle manière que les quantités de bactéries transférées correspondent aux quantités requises pour les analyses à réaliser, à effectuer automatiquement la répartition de l'inoculum précalibré, éventuellement après l'avoir convenablement dilué pour aboutir à une calibration définitive, dans une ou plusieurs alvéoles (132, 137, 145) desdits supports de mesure (104, 105) contenant pour laplupart des réactifs appropriés et à faire des mesures sur le contenu desdites alvéoles (132, 137, 145) pendant ou à la fin d'une ou plusieurs incubations subies par l'inoculum dans lesdits supports de mesure (104, 105), les mesures relevées étant enregistrées par un moyen informatique (108) et traitées en vue de la caractérisation de la croissance des bactéries présentes dans l'inoculum, de leur identification et/ou de la détermination de leur sensibilité à différents antibiotiques.
Patent CA-2176510-A1 (CA)
Title: Method for preparing concentrated biologically active silicon compounds
Inventor: SEGUIN MARIE-CHRISTINE
IPC: C07F7/18
Filed: 1995-09-29
Abstract: A method for preparing a biologically active silicon compound by hydrolysing a precursor of formula (I), wherein A, B, C, D and X are radicals other than OH, and the bonds between A, B, C and D and the Si atom are covalent bonds of which 2 or 3 can be hydrolysed. Hydrolysis is carried out in a solvent containing a small amount of water, preferably in a proportion of 0.1-5 % relative to the solvent, and at least one of the compounds resulting from the hydrolysed silicon bonds is a so-called stabilising compound which prevents the formation of polymers from the hydrolysed silicon bonds.
Patent CA-2176520-A1 (CA)
Inventor: HARTIG KLAUS W
IPC: B32B17/00
Filed: 1996-05-14
Abstract: A heat treatable, durable and chemically resistant layer system for glasses used for automotive and architectural purposes includes a metallic layer of nickel or alloy thereof overcoated with silicon nitride (Si3N4).   The layer system may include an undercoat of silicon nitride (Si3N4) and the metallic layer may also include silicon nitride. The metallic layer may be partially oxidized or surrounded by layers of stoichiometric oxides of the metal. The metallic layer, however, should not contain a nitride.
Patent CA-2178228-A1 (CA)
Title: Hose Guide
Inventor: WHITEHEAD STEPHEN P
IPC: A01G25/00
Filed: 1996-06-05
Abstract: The instant invention is a low cost hose guide consisting of a one-piece spike having a first pointed end and a second flat surface available for tapping the pointed end into the ground. The spike includes locking tabs for placement of a single piece roller that is engaged in an area above the locking tabs and below the second surface and is rotatable around the spike.  Once the hose guide is positioned into the ground a hose may be dragged around the hose guide wherein the hose guide maintains the hose in a guided fashion so as to prevent damage to critical areas such as flower beds and infant vegetation.
Patent CA-2179517-A1 (CA)
Inventor: BENNETT ROBERT E
IPC: H01S5/068
Filed: 1994-12-08
Abstract: A light source device having a controlled current source that maintains a constant intensity of light from the source during changes in light source temperature, particularly at warm-up.  The light source is heated to speed up warm-up and to maintain constant temperature of the source during operation under varying ambient temperatures. Control of the current to the light source is determined by the temperature profile circuit with signals via a temperature signal conditioner from a temperature sensor proximate to the light source.  Control of the heater is ultimately dictated by temperature sensor signals.
Patent CA-2180148-A1 (CA)
Inventor: DENINNO MICHAEL PAUL
IPC: A61K31/58
Filed: 1994-11-10
Abstract: Cette invention se rapporte à certains glycosides stéroïdiens utilisés comme agents hypocholestérolémiques et agents antiathérosclérosiques et à certains intermédiaires protégés utilisés dans la préparation de ces glycosides stéroïdiens.
Patent CA-2180158-A1 (CA)
Inventor: TAKAHASHI KAZUHIRO
IPC: C09D7/61
Filed: 1995-10-31
Abstract: A decorative material of the present invention comprises a substrate and an abrasion-resistant coating layer formed thereon, and is characterized in that the abrasion-resistant coating layer comprises spherical particles (A) having an average particle diameter of 3 to 50 micrometers, and a binder (B) comprising crosslinkable resins, that the amount of the spherical particles (A) is from 5% to 50% by weight of the total amount of the components (A) and (B), that the hardness of the spherical particles (A) is higher than that of the binder (B), and that the average particle diameter d (micrometers) of the spherical particles (A) fulfills the following inequality (1): 0.3t ~ d ~ 3.0t (1) wherein "t" is an average thickness (micrometers) of the coating layer.      Thus, the relationship between the average thickness of the coating layer and the average particle diameter of the spherical particles is strictly controlled in the present invention, so that a decorative material which is excellent in both flexibility and abrasion resistance (scratch resistance) can be successfully obtained.