baber/WOPTO huggingface dataset:
Patent CA-2071583-C (CA)
Inventor: VAN DER VEEN HENDRIK
IPC: H04L12/56
Filed: 1992-06-18
Granted: 2003-06-03
Abstract: System for converting synchronous time-division (STD) signals into asynchronous data packets (ATD), in which the incoming and outgoing signals are spread over various (multiplex) channels. Not more than a single RAM and a single FIFO are utilized for various channels together. The RAM is subdivided into rows and columns, one column per channel, data packets being preferably stored in successive columns shifted by at least 1 row.
Patent CA-2072251-C (CA)
Title: Feed forward distortion minimization circuit
Inventor: OBERMANN MARK G
IPC: H03F1/32
Filed: 1991-12-12
Granted: 1995-06-20
Abstract: A feed forward distortion minimization circuit receives an input signal and routes the input signal along two signal paths.  One path, the main signal path, includes a distortion generator such as, for example, a power amplifier, which generates an output signal having a distortion component. The other path, the feed forward signal path, includes a delay line responsive to the input signal for feeding the input signal forward, without distortion.  The output signal from the distortion generator is combined with a fed forward input signal to form an error signal representative of the distortion component.  A feedback circuit is employed to detect a DC current proportional to the error signal's signal strength and to adjust the amplitude and the phase of signals in the feed forward or main signal paths to reduce the carrier to distortion ratio of the error signal. Thereafter, the error signal is subtracted from the main signal path to cancel any distortion components therein. The subtraction is controlled by circuitry which detects distortion at the main signal path output, and adjusts the amplitude and the phase of the error signal, so that when the error signal is subtracted from the main signal path, substantially all distortion is cancelled.
Patent CA-2073435-C (CA)
Title: Foldable partition
Inventor: STARCK HANS
IPC: E06B3/94
Filed: 1991-01-10
Granted: 2001-04-03
Abstract: A folding partition (1) consists of pairs of hingedly (4, 5, 6, 7, 110) interconnected panel elements (2, 2'). The panel elements (2, 2') on their remote free edges are hingedly (20) connected to adjacent carrying posts (3). Mutually opposite posts (3) are interconnected by an approximately rectangular cleat (15). Actuator arms (30) are secured to the inside of panels (2) about their midpoint such that the actuator arm (30) of a preceedingly opened pair of panels (2) in one wall of the partition (1) actuatingly engages the actuator arm (30) of the next succeeding pair of panels (2) in the other wall of the partition (1) thereby initiating pivotal opening movement of the succeeding pair of panels (2). The inside surface of panel elements (2, 2') are provided with sealing strips (58) and the top and bottom edges of the panel elements (2, 2') include sweep strips (400, 401).
Patent CA-2078904-C (CA)
Title: Wall electrode for direct current electric metallurgical furnace
Inventor: DESTANNES PHILIPPE
IPC: F27D11/00
Filed: 1992-09-23
Granted: 1999-08-31
Abstract: The wall electrode comprises a metal bar (1) intended to penetrate the wall of the oven, a water-cooled sleeve (9) made of a material which has good thermal and electrical conductivities, an endpiece (6) made of a material which has good thermal and electrical conductivities and an annular part, such as a ring (15), made from a heavy metal having a low melting point, surrounding the bar so that the heavy metal in the liquid state spreads out into the space (14) between the bar (1) and the sleeve (9), when the part (15) is melted during the use of the electrode. 
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Patent CA-2083385-C (CA)
Title: Sustained release suppository
Inventor: MURATA MASAMI
IPC: A61K9/02
Filed: 1990-05-24
Granted: 2000-02-22
Abstract: The present invention relates to a sustained-release suppository preparation characterized by comprising an acidic drug or a salt thereof which can be absorbed by rectal administration and an acidic compound or a pH buffering agent. The sustained-release suppository preparation of the present invention exhibits no rapid increase in blood concentration immediately after the administration and maintains its action for a long period of time. Thus, it is safer and exhibits a better therapeutic effect.
Patent CA-2083683-C (CA)
Title: Stable formulation of analapril salt, a process for the preparation thereof and the use thereof
Inventor: MERSLAVIC MARJO
IPC: A61K38/55
Filed: 1992-11-24
Granted: 2000-09-05
Abstract: There is disclosed a stable formulation of enalapril salt of the formula I   (see formula I) which is prepared in such manner that a compound of formula II   (see formula II) is suspended in demineralized water and a stoichiometric amount of the corresponding sodium compound such as sodium carbonate, sodium hydrogen carbonate or sodium hydroxide is added thereto, to this enalapril sodium salt prepared in situ of the formula I   (see formula III) formulating additives are added, the whole is homogenized and formulated.
Patent CA-2088843-C (CA)
Inventor: FUSILLI ANTHONY T
IPC: E01H5/06
Filed: 1993-02-04
Granted: 1996-08-06
Abstract: A system for mounting, removal, and storage of a snowplow includes a caster removably mounted on the rear crossbar of the plow A-frame. The caster shaft is threaded for adjustability of the vertical position of the crossbar. Front wheels are removably mounted on the right and left ends of the plow blade.
Patent CA-2093124-C (CA)
Inventor: ARMINGTON STEVEN E
IPC: B31D5/00
Filed: 1991-10-01
Granted: 2004-03-23
Abstract: A cushioning dunnage conversion machine (20) for converting sheet-like stock material, such as paper in multi-ply form, into cut sections of relatively low density pad-like cushioning product is provided. The machine (20) is designed so that it may be used with packaging systems requiring both horizontal and vertical positioni ng of the machine (20) and to this end the machine frame (36) includes a base plate (43), a first end plate (44) extending generally perpendicular from an upstream end (38), and a second end plate (46) extending generally perpendicular from a downstream en d (40). The machine (20) may also include a post-cutting constraining assembly (58) for circumferentially constraining the cut sectio ns of the pad-like cushioning dunnage product and/or a pivot cover (110) to aid in the manual threading of the machine (20 ). The present invention also provides packaging systems (320, 400 and 500), which include at least one cushioning dunnage conversion machine (20) positioned in a vertical manner.
Patent CA-2096522-C (CA)
Inventor: BLOW KEITH JAMES
IPC: G02F1/35
Filed: 1991-11-27
Granted: 1998-02-17
Abstract: An optical switch comprises an optical fibre Sagnac loop interferometer (2) having an input port (10) and an output port (12). A source of optical signals (26) at 1.53 µm is coupled to the input port (10) and a source of control optical signals (18, 20) of wavelengths 1.30 µm and 1.31µm are coupled to the interferometer (2) by a dichroic coupler (8). The coupler (8) splits the 1.53µmn input optical signal into two signal portions which counterpropagate round the loop (6) and couples the control signal to propagate in one direction only round the loop (6). The phase difference between the signal portions at the output port (12) is dependent on the intensity of the control optical signal when they recombine at the coupler (8). The optical control signals are formed by combining at least two optical pulse streams, the pulses of distinct optical pulse streams being non-interferometric, to provide a logical AND gate.
Patent CA-2101523-C (CA)
Title: Inhibiting popcorn polymer formation with alkyl halides
Inventor: SUN HSIANG-NING
IPC: C07C17/42
Filed: 1992-01-24
Granted: 1996-12-10
Abstract: Inhibition of popcorn polymer growth by treatment with an alkyl halide.  This compound can be admixed with organic ma-terial from which popcorn polymer is formed, or added to a system for the recovery, use or storage of such organic material.
Patent CA-2101955-C (CA)
Title: Engine exhaust alumina catalyst carrier
Inventor: KORADIA PRAMOD B
IPC: B01J23/28
Filed: 1993-08-05
Granted: 1998-02-24
Abstract: Porous carrier materials comprising at least 90% by weight of at least 95% pure alpha alumina are very effective as supports for catalysts treating engine exhausts and are significantly better able to withstand extreme conditions than conventional supports.
Patent CA-2104707-C (CA)
Title: Partitioned paperboard food tray
Inventor: RIGBY WILLIAM ROGER
IPC: B65D3/24
Filed: 1993-08-24
Granted: 1997-11-04
Abstract: A flat, machine formed paperboard package blank which is used in the construction of a composite  food packaging article having internal partitioning walls.   A pair of die-cut and folded paperboard blanks are inserted within the opposing cavities of a blow mold.   A hot-flow parison between the cavities expands to structurally unitize the folded paper blank into a fluid impermeable tray vessel.
Patent CA-2109254-C (CA)
Title: Sciage et decoupage d'equarris deux-faces selon leur courbe
Inventor: BRISSON MAURICE J
IPC: B27B25/02
Filed: 1993-10-26
Granted: 1997-04-22
Abstract: Un système utilisé en combinaison avec une unité de sciage ou de découpage d'équarris, servant à guider un équarri à deux faces durant la coupe selon sa courbature naturelle. Ce système comprend, du côté alimentation de l'unité, des rouleaux qui pressent contre les faces planes opposées de l'équarri, lui assurant ainsi un point de pivotement, et inclut également des moyens de produire longitudinalement un déplacement angulaire de l'équarri durant son avance, à partir du point de pivotement et relativement aux éléments de sciage ou de découpage, permettant à ces éléments d'exécuter la coupe en suivant la courbe naturelle de l'équarri.
Patent CA-2116371-C (CA)
Inventor: KRONZER FRANCIS JOSEPH
IPC: B24D11/02
Filed: 1994-02-24
Granted: 2003-10-14
Abstract: A coated fabric having a first surface engagable by hooks and a second surface having thereon a continuous coating of a synthetic polymeric composition.  An example of a surface engagable by hooks is a surface having a plurality of loops. The fabric is especially suitable for use in the preparation of a releasably attachable abrasive sheet material. The continuous coating of synthetic polymeric material typically is applied by melt extrusion.
Patent CA-2120532-C (CA)
Title: A diagnostic catheter with memory
Inventor: YELDERMAN MARK L
IPC: A61B5/0275
Filed: 1992-09-29
Granted: 2001-11-27
Abstract: A catheter assembly having a catheter (100) with at least one transducer (110) associated therewith for directly measuring physiological parameters of a patient or measuring an amount of a parameter indicative of a physiological condition of the patient and a memory (102) which resides at a predetermined location on said catheter (100). The memory (102) contains encoded calibration information for calibrating the transducers (110) and encoded patient specific information which can be accessed by an external processing system to which the catheter assembly is connected for processing. The memory (102) is further designed such that disconnection of the catheter assembly from the external processing system does not cause values stored in the memory to be lost so that the patient specific information need be reentered into the memory when the catheter assembly is reconnected to the same or another external processing system. By so providing the catheter assembly with memory (102), information for factory calibration, patient calibration and historical patient data may be stored with the catheter (100) for ease of use.      The data in the memory (102) may also be coded to prevent easy replication of the catheter (100) by a competing manufacturer.
Patent CA-2121185-C (CA)
Title: Vehicle coating process
Inventor: SMITH WILLIAM C
IPC: B05D7/00
Filed: 1994-04-13
Granted: 2000-04-04
Abstract: A process of applying a finish to an electrically conductive vehicle body by passing the body through a water-based electrocoating bath while applying a voltage between the body and the bath to electro-coat the body with constituents of the bath. The coat is dehydrated to a state of sufficient dryness to permit spray application of a water-base primer while maintaining the coat cool enough to avoid fusing the coat. A coating of water-base primer is then sprayed over the dehydrated but otherwise untreated E coat. The coat and coating are then baked to concurrently fuse both of them. The primer sprayed on an interior portion of the body is pigmented to a desired finished color. Selected portions of the baked coating on the exterior of the body are light sanded to remove entrained dirt and thereafter finish coating is applied to the body.
Patent CA-2122055-C (CA)
Title: Device for enriching water with co_ gas in order to generate carbonated water
Inventor: NOTAR ROBERT
IPC: B01F1/00
Filed: 1993-08-25
Granted: 1996-12-03
Abstract: Apparatus which accelerates  the  cooling of  the stored water cooled in the storage tank after a refilling operation so that it corresponds to the temperature that is normally reached after a relatively long water storage period.  The apparatus includes a carbonator tank having at least one spray opening in the water feed line leading into the head-space region of the carbonator storage tank and where the spay opening is directed to the side walls of the tank in the vicinity of an ice bank formed on an upper inner wall surface thereof.  An additional spray opening is oriented so that it pointed directly at the water  surface  and  by  a  relatively  simple  valving arrangement both downward and/or lateral sprays can be implemented.   The present invention also includes an arrangement where an adjustable spray guide element is located inside the storage tank in the immediate vicinity of a water feed opening so that a guiding of the sprayed water can be provided either toward the ice bank or directly toward the water surface inside the tank.
Patent CA-2122250-C (CA)
Title: Method for testing containers, use of the method, and a testing device
Inventor: LEHMANN MARTIN
IPC: G01M3/32
Filed: 1992-08-27
Granted: 2006-04-11
Abstract: The invention concerns a method and device for testing containers, the method calling for a difference in pressure to be generated between the pressure inside the container and the pressure immediately surrounding the container, the behaviour of one of these pressures permitting the gastightness of the container to be assessed. A pressure value is stored and subsequently compared with one of the pressures, the stored pressure value being stored electronically and compared with at least one value of the output signal from a pressure sensor. The container is housed in an enclosure which is connected to a pressure or suction line, and a pressure-value storage unit, a comparator unit and a pressure sensor are associated with the pressure or suction line.
Patent CA-2124954-C (CA)
Inventor: MICHALSKI BERNHARD
IPC: G01S15/10
Filed: 1993-09-28
Granted: 1997-02-18
Abstract: In order to set a range finding instrument operating according to the echo-sounding principle using sonic or ultrasonic pulses to an optimum transmission frequency, the transmission frequency is altered stepwise within a predetermined frequency range. During each reception spell following on the transmission of a sonic or ultrasonic pulse an amplitude-time-profile of the received signals is formed and integrated. The integration values obtained for the various transmission frequencies are stored, and an optimum transmission frequency is set to that frequency at which the maximum integrated value is obtained. In order to eliminate the effects of background noise on the determination of the optimum transmission frequency a mean noise amplitude of the received signals is determined and subtracted from the amplitude-time-profile of the received signals before integration.
Patent CA-2125553-C (CA)
Inventor: HART DOUGLAS R S
IPC: D06F58/28
Filed: 1992-12-10
Granted: 1999-08-24
Abstract: A control device is constructed in the form of a plug adaptor and a control means that can interrupt the power to a dryer when the load is dry. The pattern of the power consumption of the dryer is used, together with a control algorithm, to provide the information needed for the control decision. The device provides a superior means of determining the cycle termination point which could also be incorporated directly into dryers at the point of manufacture. In addition, the invention provides a means of correlation between the moisture level and character of the laundry load with the pattern of power consumption of the clothes dryer. This correlation may be used to further optimize the performance of the drying cycle or to provide load-specific control and termination procedures.
Patent CA-2127226-C (CA)
Inventor: GANDAIS MICHEL AUGUSTE GEORGES
IPC: C04B28/02
Filed: 1994-06-30
Granted: 1997-07-29
Abstract: L'invention a trait à un mortier injectable comprenant un liant hydraulique en suspension dans l'eau, lequel comprend en outre, proportionnellement au poids de liant hydraulique, (A) de 2 à 50 % en poids de particules d'au moins une substance minérale dont le diamètre médian est inférieur à la moitié du diamètre médian des particules du liant hydraulique, et (B) de 0,05 à 5 % en poids d'hydroxyéthylcellulose. Utilisation dans le domaine du génie civil.
Patent CA-2127327-C (CA)
Inventor: WARNER KEVIN L
IPC: E21B47/08
Filed: 1994-07-04
Granted: 2004-01-06
Abstract: An ultrasonic stand-off gauge for use in measuring the instantaneous stand-off distance between the drill stem and the borehole wall while drilling. A primary transducer mounted on the drill collar sends and receives ultrasonic pulses between the drill collar and the borehole wall. A second, reference transducer mounted on the pressure barrel within the drill collar measures the sound speed of the drilling fluid. The drilling fluid flows through a conduit within the drill collar, where the reference transducer transmits a pulse through the drilling fluid in the conduit. The pulse from the  reference transducer is reflected off an internal reflector mounted on the internal surface of the drill collar. Since the distance between the reference transducer and the reflector is known and constant, the sound speed of the drilling fluid is determined accurately. Electronic circuitry uses the sound speed measurement of the drilling fluid as determined by the reference transducer to calculate accurate values of stand-off distance. The electronic circuitry also compensates for the variations of pressure, temperature and other characteristics of the drilling fluid, as well as for variances in the stand-off distance.
Patent CA-2137021-C (CA)
Title: Implantable tubular prosthesis
Inventor: SCHMITT PETER J
IPC: A61F2/06
Filed: 1994-11-30
Granted: 1999-06-08
Abstract: The present invention provides a soft-tissue prosthesis which is formed from a tubular textile substrate and a liner. The liner is affixed to the intraluminal surface of the tubular textile portion of the soft-tissue prosthesis to form a fluid-tight barrier on the intraluminal surface of the prosthesis. The liner is preferably formed from a polymer. Thus, the soft-tissue prosthesis formed in accordance with the present invention provides the advantages of both a textile prosthesis and a polymer prosthesis.
Patent CA-2140846-C (CA)
Inventor: BIELFELDT FRIEDRICH B
IPC: B30B15/04
Filed: 1995-01-23
Granted: 2000-07-25
Abstract: A press with a window type tension frame. The frame has an upper and lower crosshead with two lateral tension shackles connected together to form the window type tension frame. The crossheads and the tension shackles are removably joined together by a clamping system that employs tension bolts.
Patent CA-2143335-C (CA)
Title: Isolated nonapeptide derived from mage-3 gene and presented by hla-a1, and uses thereof
Inventor: BOON-FALLEUR THIERRY
IPC: C12N15/11
Filed: 1993-08-30
Granted: 2000-03-14
Abstract: The invention involves a nonapeptide derived from the tumor rejection antigen precursor encoded by gene MAGE-3. This nonapeptide is presented by HLA molecules HLA-A1. The resulting complexes are identified by cytolytic T cells. Such recognition may be used in diagnostics, or therapeutically.
Patent CA-2148219-C (CA)
Title: Measurement of total molecule in a sample and methods based thereon
Inventor: RITTERSHAUS CHARLES W
IPC: C12Q1/68
Filed: 1993-10-29
Granted: 1998-12-29
Abstract: The measurement of the total amount of a target molecule is used in the detection, diagnosis, determining the severity of and staging of a variety of diseases or disorders and the monitoring of therapy. The measurements of the total amount of a target molecule is accomplished by treating a sample containing cells, such as a body fluid, with a non-ionic detergent in a manner that makes available for binding to one or more binding partners the total amount of a target molecule present in the cell membrane, the cytoplasm of the cell and/or in the soluble compartments of the body fluid. Once the total target molecule is available, it is measured using any of a number of assay techniques, preferably by sandwich enzyme immunoassay. The methods of the present application may be used to detect and measure molecules associated with microbial pathogens, in particular untracellular pathogens such as Chlamydia, as well as erythrocyte blood group antigens, tumor antigens, cytokines and cell adhesion molecules, for diagnosis, enumeration of cells expressing such molecules, and other methods.
Patent CA-2151043-C (CA)
Inventor: PATEL RAJESHKUMAR NATWARLAL
IPC: C07C227/18
Filed: 1994-11-02
Granted: 2002-07-02
Abstract: La présente invention a pour objet des améliorations de certains procédés pour alkyler des acides aminés, permettant ainsi d'augmenter les rendements basés sur les acides aminés. De manière plus spécifique, l'invention concerne un procédé de préparation de dérivés d'acides aminés sous forme de sel ou d'acide libre, dans laquelle les atomes d'azote de deux molécules d'acides aminés ou plus sont liés par un groupe hydrocarbyle ou un groupe hydrocarbyle substitué. Ce procédé consiste à faire réagir, dans un milieu aqueux, à un pH compris entre 7 et 14, un composé de la formule X-A-Y où X et Y correspondent à des atomes de halo qui peuvent être identiques ou différents, et A représente un groupe hydrocarbyle ou un groupe hydrocarbyle substitué, dans lequel X et Y sont fixés à des atomes de carbone aliphatiques ou cycloaliphatiques, avec un acide aminé (ou un sel de celui-ci). Selon ce procédé, la réaction intervient en présence de cations dissous d'un métal terreux alcalin ou d'un métal de transition et/ou l'acide aminé n'ayant pas réagit est récupéré et recyclé.
Patent CA-2151319-C (CA)
Title: Biodegradable fabric conditioning molecules based on glyceric acid
Inventor: RAHMAN MOHAMMAD ABDUR
IPC: C07C235/10
Filed: 1995-06-08
Granted: 2007-04-10
Abstract: Novel fabric conditioning agents which contain either an ester or an amide link between a glyceric carboxyl group and a quaternary ammonium group as described. The compounds based on glyceric acid are both effective fabric conditioners and biodegradable, and may be formulated in any conventional physical form to form a fabric conditioning composition. A method of using the composition is also described.
Patent CA-2157181-C (CA)
Title: Modified chlorinated polyolefins, aqueous dispersions thereof and their use in coating compositions
Inventor: MARTZ JONATHAN T
IPC: C08L23/28
Filed: 1994-02-23
Granted: 1999-04-13
Abstract: Modified chlorinated polyolefins obtained by heating the clorinated polyolefin with a hydrocarbon acid having at least 7 carbon atoms in the presence of a free radical initiator are disclosed. The modified chlorinated polyolefins can be formulated into aqueous dispersions and coated onto plastic substrates to improve the adhesion of subsequently applied coatings.