baber/WOPTO huggingface dataset:
Patent CA-2074126-A1 (CA)
Title: High-frequency power amplifier
Inventor: SEKINE KENJI
IPC: H03F3/60
Filed: 1992-07-17
Abstract: A high-frequency power amplifier comprises a pair of FETs, a divider for supplying to the FETs opposite-phase versions of a signal to be amplified, distributed-parameter transmission lines respectively connected at first ends thereof to output electrodes of the FETs.  A combiner combines signals appearing at other ends of the transmission lines into a signal with a common phase. Stubs which short-circuit for even harmonics in the output signals of the FETs are connected to the respective transmission lines at positions distant from the output electrodes of the FETs by a multiple of a quarter wavelength of the fundamental wave. A first capacitor is connected between the transmission lines at positions distant from the output electrodes of the FETs by a 1/12 wavelength of the fundamental wave so that the output electrodes of the FETs are open for the third harmonic.  A second capacitor is connected between the transmission lines at positions between the connecting positions of the first capacitor and the connecting positions of the stubs to the transmission lines so as to perform impedance matching for the fundamental wave.
Patent CA-2077760-A1 (CA)
Inventor: KUCHARCZYK JOHN
IPC: G01R33/561
Filed: 1991-03-06
Abstract: The invention provides a method of detecting blood flow abnormality or variation in a human or non-human body, said method comprising administering into the systemic vasculature of a said body a contrast enhancing amount of an intravascular paramagnetic metal containing magnetic resonance imaging contrast agent subjecting said body to a magnetic resonance imaging procedure capable of generating from magnetic resonance signals from said body a series of temporally spaced images of at least a part of said body into which said agent passes and detecting temporal variations in said signals or images whereby to identify regions of abnormal or modified blood flow in said body and to indicate the degree of blood flow abnormality or modification therein.
Patent CA-2077948-A1 (CA)
Title: Further novel 5-amino-4-hydroxyhexanoic acid derivatives as therapeutic agents
Inventor: LANG MARC
IPC: C07K14/81
Filed: 1992-09-10
Abstract: Abstract Further novel 5-amino-4-hydroxyhexanoic acid derivatives as therapeutic agents Described are compounds of the formula                 (1), wherein R1 is hydrogen, lower alkoxycarbonyl, heterocyclycarbonyl, benzyloxycarbonyl that is unsubstituted or substituted by up to three radicals which may be the same or different and are selected from fluorine, halo-lower alkyl, lower akanoyl, sulfo, lower alkylsulfonyl and cyano; heterocycloxycarbonyl wherein heterocyclyl is bonded by way of a carbon atom; one of the mentioned carbonyl radicals wherein the bonding carbonyl group has been replaced by a thiocarbonyl group; heterocyclylsulfonyl, lower alkyl-sulfonyl or N-(heterocyclyl-lower alkyl)-N-lower alkylaminocarbonyl, B1 is a bond or a bivalent radical of an .alpha.-amino acid, which radical is bonded N-terminally to R1 and C-terminally to the amino group at the R2-CH2-carrying carbon atom, each of R2 and R3, independently of the other, is phenyl or cyclohexyl, those radicals being unsubstituted or substituted by from one to three radicals which may be the same or different and are selected from hydroxy, loweralkoxy, halogen, halo-lower alkyl, sulfo, lower alkyl-sulfonyl, cyano and nitro, A1 is a bond between -C=O and A2 or is a bivalent radical of an .alpha.-amino acid, which radical is bonded N-terminally to the group -C=O and C-terminally to A2, A2 is a bivalent radical of an .alpha.-amino acid, which radical is bonded N-terminally to A1 and C-terminally to the group NR4R5, or A1 and A2 together form a bivalent radical of a dipeptide, of which the central amide bond is reduced and which is bonded N-terminally to the group -C=O and C-terminally to the group NR4R5, and R4 and R5, together with the bonding nitrogen atom, are unsubstituted or substituted thiomorpholino or morpholino, and the salts of those compounds if salt-forming groups are present, or hydroxy-protected derivatives thereof.  Those HIV protease-inhibitors are used in the treatment of AIDS.
Patent CA-2080272-A1 (CA)
Title: Cyclic vasoactive peptides
Inventor: BOLIN DAVID R
IPC: A61K38/08
Filed: 1992-10-09
Abstract: The present invention relates to vasoactive peptide (VIP) analogs wherein the side chain carboxy terminus of one amino acid in the peptide chain is attached covalently to the side chain amino terminus of another amino acid in the peptide chain via the formation of an amide bond. The covalent bonding between the two amino acid residues in the peptide chain yields a ring structure. The present invention provides cyclic vasoactive peptides and pharmaceutical compositions comprising such a cyclic vasoactive peptide for the treatment of bronchotracheal constrictive disorders.
Patent CA-2082189-A1 (CA)
Title: Method for shifting the frequency of signals
Inventor: RIBIC ZLATAN
IPC: H03G7/00
Filed: 1992-11-05
Abstract: ABSTRACT:            Method and device for transposing the frequency of an input signal, in particular for hearing aids, comprising:            -    an analytical circuit (AS) with which are produceable a momentary   frequency   signal   w(t)   whose   strength   is proportional to the momentary frequency of the input signal ui(t) and a momentary amplitude signal A(t) whose strength is proportional to the momentary amplitude of the input signal ui(t);    -    a voltage-controlled oscillator (VCO) which is connected to the output of the analytical circuit (AS) that supplies the frequency signal w(t);            -    a multiplier (M) with two inputs, of which one of them is  connected  to  the  output  of  the  voltage-controlled oscillator  (VCO)  and  the  other  to  the  output  of  the analytical circuit (AS) supplying the amplitude signal A(t).            Fig. 4
Patent CA-2082640-A1 (CA)
Title: Hierarchical encoding method and apparatus employing background references for efficiently communicating image sequences
Inventor: BERNSTEIN JEFFREY
IPC: H04N7/26
Filed: 1991-05-10
Abstract: To improve reproduction of images transmitted over a narrow-band channel (20), image frames are first arranged in a hierarchy of decimation levels. A first error signal is generated by comparing corresponding levels of decimated background data with current image data, and second error data is generated by comparing corresponding levels of frame-predicted warped data also with the current image data. These two error signals are then compared to determine which data more closely represents the current image data. In another embodiment, motion compensation is used.
Patent CA-2084035-A1 (CA)
Inventor: GERHARDUS ULRICH
IPC: C10J3/46
Filed: 1992-11-27
Abstract: The present invention relates to a burner for the production of synthesis gas by partial oxidation of carbon-containing fuels, which burner contains three or more tubes, concentrically arranged to each other. The end of the burner facing the partial oxidation zone is clad with a layer composed of individual,  adjacently arranged, ceramic platelets.
Patent CA-2085812-A1 (CA)
Inventor: KINOSHITA MITSUO
IPC: C04B24/16
Filed: 1992-12-18
Abstract: Cement dispersion agents containing a graft copolymer composed of four kinds of constituent unit each having a specified structure can provide improved fluidity to cementing compositions, prevent slump loss after the kneading process and reduce the drying shrinkage of hardened concrete produced at the same time.
Patent CA-2088756-A1 (CA)
Title: Holder for a body grooming tool
Inventor: JEANNET ROLAND
IPC: A46B15/00
Filed: 1993-02-03
Abstract: In the case of a holder for a toothbrush, which holder comprises a plate (1) to be attached to a wall and a holding element (7) extending, in the usage position, perpendicular to the plate, the plate (1) and the holding element (7) are pivotably connected to each other and there is provided, moreover, on the plate (1), a suspension device (3), in which a magazine (10) containing accessories for the toothbrush can be suspended. When the holding element (7) is pivoted out of the open position into the usage position, the holding element (7) grips over the suspension device (3) in such a way that the magazine (10) is protected against unintended detachment from the holder.
Patent CA-2089164-A1 (CA)
Title: Use of antiarrhythmic agents to lower cholesterol
Inventor: MOSS ARTHUR J
IPC: A61K31/49
Filed: 1992-06-03
Abstract: A method is provided to lower serum cholesterol, total triglycerides and/or apoprotein B in a human by administering an effective amount of one or more Type IA antiarrhythmic agents to said human.
Patent CA-2090152-A1 (CA)
Title: Method of preparing trackable response devices
Inventor: SCHMITT STEPHEN E
IPC: G06Q30/02
Filed: 1993-02-23
Abstract: METHOD OF PREPARING TRACKABLE RESPONSE DEVICES         Abstract of the Invention Trackable response devices such as redeemable coupons are prepared by forming multiple sets of response devices.  Each set might comprise a book having multiple pages of coupons.  A tracking code is printed on least some of the response devices of each set.  The tracking code for the response devices within a particular set is the same, and the tracking code for each set is different.  After the sets are formed, each set is printed with an address, and the address of each set and the tracking code of the set is stored.
Patent CA-2090519-A1 (CA)
Title: Coin analyzer sensor configuration and system
Inventor: PARKER DONALD O
IPC: G07D11/00
Filed: 1993-02-26
Abstract: COIN ANALYZER SENSOR CONFIGURATION                 ABSTRACT OF THE DISCLOSURE         A coin analyzer system includes a coin detecting sensor having a body defined by a magnetic core with spaced apart sides to define there-between an air gap that is large enough to position any size coin which may be deposited.  A coil that is magnetically coupled to the core generates a uniform magnetic flux through the air gap from one side to the other so that the positioning of the coin in the air gap is not critical.  A return path is provided in the core for returning the magnetic flux to the one side from the other side and thereby completing the magnetic circuit.  The arms surrounding the coin sensing region define facing surfaces which converge outwardly from the bite portion in order to produce a uniform magnetic circuit reluctance for all portions of the facing surfaces.  The core may be divided into two core portions separated by a secondary air gap in the return path with a pair of coils provided, one magnetically coupled with each of the core portions.  One coil may serve as a transmitting coil and the other as a receiving coil.  Other embodiments of the sensor include a generally E-shaped core including at least one base member and three arms extending in a same direction from the base member in order to define a test coin sensing region between two adjacent ones of the arms and a sample coin sensing region between two other adjacent ones of the arms.  A coil is magnetically coupled with the base member between two adjacent arms and another coil is magnetically coupled with the base member between two other adjacent arms.  Various detection circuits are disclosed for connection with the sensor coils in order to determine the denomination of the test coin.
Patent CA-2090921-A1 (CA)
Title: Process for preparing 1-[/2s/-methyl-3 -mercapto-propionyl]-pyrrolidine-/2s/-carboxylic acid
Inventor: SCHNEIDER GEZA
IPC: A61K31/40
Filed: 1993-03-03
Abstract: Abstract A process for preparing 1-[/2S/-methyl-3-mercapto-propionyl]-pyrrolidine-/2S/-carboxylic acid The invention relates to a novel process for preparing 1-[/2S/-methyl-3-mercaptopropionyl]-pyrrolidine-/2S/--carboxylic acid of the formula I                              (I) in which 1-[/2S/-methyl-3-thiocyanatopropionyl]-pyrrolidine--/2S/-carboxylic acid of the formula II                       (II) is dissolved in an aqueous mineral acid, the solution obtained is diluted with water and the 1-[/2S/-methyl-3-carbamoylthio-propionyl]-pyrrolidine-/2S/-carboxylic acid of the formula III       (III) that forms is hydrolized with an aqueous solution of a base.
Patent CA-2092092-A1 (CA)
Title: Trd temperature sensor and electronics
Inventor: THOMAS DAVID C
IPC: G01J5/08
Filed: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE      A temperature sensing system has a signal means which provides a signal representative of a temperature responsive luminescence, where the luminescence has a characteristic time-rate-of-decay.  A means for comparison is connected to the signal means and samples the signal during two time intervals, the first interval (A-D) overlapping the second (B-C).  The averages of the samples are compared to provide a difference signal representative of the difference between the two measured averages.  Control means coupled to the comparison means provide an output representing the temperature as a function of the time-rate-of-decay, by adjusting the overlapping intervals so that the difference signal converges to a preselected limit.
Patent CA-2098705-A1 (CA)
Inventor: DE MERINGO ALAIN
IPC: A01G31/00
Filed: 1992-10-14
Abstract: 2098705 9307741 PCTABS00162 La présente invention concerne des fibres de verre destinées à être utilisées comme constituants pour un substrat de culture hors-sol, leur composition comprenant essentiellement les constituants suivants dont les proportions sont exprimées en pourcentage pondéral: SiO2 55 - 70 %, Al2O3 1 - 8 %, CaO 5 - 9 %, MgO 1,5 4 %, Na2O 13 - 18,5 %, K2O 0,5 - 10 %, Fe2O3 0 - 4 %, ZnO 0 - 4 %, MnO 0- 4 %, TiO2 0 - 4 %, P2O5 0 - 4 %, impuretés < 1 %, dont la somme des teneurs en B2O3, Li2O et F est inférieure ou égale à 1 %.
Patent CA-2099829-A1 (CA)
Title: Locomotive equipped with rheostat break system for high speed train
Inventor: BERTRAND CHRISTIAN
IPC: B61C17/04
Filed: 1993-07-05
Abstract: The invention relates to a railway traction unit equipped with at least one braking rheostat (2) for a high-speed train, comprising means for cooling the braking rheostat, characterised in that these cooling means comprise air conduits (5, 6) making it possible to admit the outside air into the unit as far as the rheostat and to discharge the admitted air outside the unit after it has passed over the rheostat, at least the inlet of the air-admission conduit opening towards the direction of travel of the train. <IMAGE>
Patent CA-2099987-A1 (CA)
Title: Active component for capturing basic nitrogen in catalytic cracking catalysts
Inventor: CORMA CANOS AVELINO
IPC: C10G11/05
Filed: 1992-11-06
Abstract: Material used as matrix and active in catalysts for the catalytic cracking of heavy fractions of petroleum (FCC), consisting in a fibrous magnesian silicate of the sepiolite type modified by substitution of Mg2+ terminal by trivalent cations and which is active and selective for bottom conversion and for passivation of basic compounds of nitrogen present in food products.
Patent CA-2102647-A1 (CA)
Inventor: FLORA JOHN H
IPC: G01N27/90
Filed: 1993-11-08
Abstract: Defects such as corrosion located on the exterior of a component such as a metal pipe, tank, vessel or support structure which is insulated by a coating or cover, are detected by a low frequency eddy current (LOFEC) system. A magnetizing yoke in the shape of an inverted U is placed on the cover insulating a metal component. An excitation coil is wrapped around the magnetizing yoke for carrying an altering current in order to produce an alternating magnetic field by the magnetized yoke. The alternating magnetic field produced by the magnetized yoke induces an eddy current which runs through the metal component between the legs of the yoke. A pair of magnetic flux sensors are used in differential connection beneath one or more excitation coils which can be articulated to conform to varying pipe diameter. In addition, an absolute signal response can be obtained from one of the receiver coils.      This arrangement allows for the reduction and minimizing of unwanted and extraneous signal responses caused by variations in the component structure while the yoke is scanned about the cover and a positive separation of loss of metal signals (CUI) from artifact signals.      Defects located on the surface of pipes or tanks covered with marine growth can be detected using the DPEC probe with either a signal magnetic flux sensor located beneath the excitation coil or a plurality of magnetic flux sensors differentially connected.
Patent CA-2103231-A1 (CA)
Title: Conveyor mat built up of synthetic modules and modules for such conveyor mat
Inventor: BOS ARNOLDUS J L
IPC: B65G17/08
Filed: 1993-11-16
Abstract: Title:  Conveyor mat built up of synthetic modules and modules for such conveyor mat.                    ABSTRACT    A conveyor mat built up of first and second modules, made in one piece of synthetic material, the width of the first modules being substantially twice the width of the second modules, with the modules, viewed in the longitudinal direction of the mat, being staggered, each module consisting of a plurality of substantially equally spaced-apart hinge plates, each extending over substantially the entire length of the module and each having hinge loops at the two ends thereof, the hinge plates of a module being coupled by means of at least one rib disposed between the two ends, the ends of the hinge plates being disposed at a longitudinal side of a module between the ends of the hinge plates of an adjacent module in the longitudinal direction of the mat, the hinge loops of the two modules being substantially in alignment and coupled to each other by means of a hinge pin extending through the hinge loops, there being provided means for locking the hinge pin relatively to the modules, characterized in that the second modules are located exclusively on the two lateral sides of the conveyor mat, a first module always being disposed between two consecutive second modules at one lateral side, that of each second module, the end hinge plate disposed at the lateral side of the mat comprises the means for locking the two hinge pins that couple said second module to both first modules adjoining in the longitudinal direction of the mat, and that the first and second modules have such a width that at the lateral sides of the mat, the end faces of the first modules and second modules are substantially in line.
Patent CA-2105066-A1 (CA)
Inventor: SANTHANAM ANAKKAVUR T
IPC: A61B5/055
Filed: 1992-04-01
Abstract: A coated indexable cutting insert (1) for wet and dry milling of cast irons is provided.  The substrate of the insert (1) is com-posed of a cemented tungsten carbide based composition containing about 5.7 to about 6.4 weight percent cobalt and about 2.9 to about 3.6 weight percent tantalum.  The coating includes two coatings of differing composition. The first coating is selected from titanium carbide, titanium carbonitride, and titanium nitride.  The second coating is alumina.
Patent CA-2105446-A1 (CA)
Inventor: ARITAKE HIROKAZU
IPC: G03H1/08
Filed: 1993-09-02
Abstract: The position of a solid image which changes with the elapse of time is detected.  The position of a virtual screen is set so that a distance from an object enters an allowable range such as to reduce a fatigue of an observer.  A 2-dimensional image is formed at the set virtual screen position.  A phase distribution is calculated at the hologram forming surface, thereby displaying a solid image.  Even when the position of a solid image changes with the elapse of time, the fatigue of the eyes can be  minimized.
Patent CA-2109796-A1 (CA)
Inventor: BIANCO JAMES A
IPC: C07D473/04
Filed: 1992-05-22
Abstract: Compounds of formula (I), wherein one and only one of R1 and R3 is a straight-chain or branched-chain .omega.- or (.omega.-1)-hydroxyalkyl (5-8C), or is an (.omega.-1)-oxoalkyl (5-8C) or is an (.omega., .omega.-1) or (.omega.- 1, .omega.-2) -dihydroxyalkyl (5-8C), or is an alkenyl substituent (5-8C), and the other is alkyl (1-12C) optionally containing one or two non-adjacent oxygen atoms in place of C, and wherein R2 is alkyl (1-12C) optionally containing one or two non-adjacent oxygen atoms in place of C, are useful in modulating the effects of internal and external stimuli on cells by reversing the effects of these stimuli on the short-term secondary messenger pathways. In particular, the compounds of Formula (I), lower elevated levels of unsaturated, non-arachidonate phosphatidic acid (PA) and diacylglycerol (DAG) derived from said PA within seconds of the primary stimulus and their contact with said cells. The modulatory effect depends on the nature of the target cell and the stimulus applied.
Patent CA-2113452-A1 (CA)
Title: Anchorage device
Inventor: O'KANE KEVIN J
IPC: E04G5/04
Filed: 1992-07-15
Abstract: This invention relates to an anchorage device for use in anchoring a member to a structure, the device comprising at least two elongate rigid elements (12, 14) for independent insertion into respective divergent recesses (32, 34) formed in the structure, and holding (18) means for detachably holding the said elements at a position externally of the recesses whereby the rigid elements (12, 14) are anchored in their respective recesses (32, 34) in a divergent state. The anchorage device of the invention may be used in particular for anchoring scaffolding to a building.
Patent CA-2114644-A1 (CA)
Title: Preservatives for wood and other cellulosic materials
Inventor: WILLIAMS GARETH
IPC: A01N59/16
Filed: 1992-08-03
Abstract: This invention relates to preservative compositions which comprise a biocidal metal compound and a fungicidal com-pound containing a triazole group. Methods of treating wood with the composition are also described.
Patent CA-2116476-A1 (CA)
Title: Roller tube support for awnings
Inventor: LUKOS STEPHEN P
IPC: E04H15/58
Filed: 1994-02-25
Abstract: IMPROVED ROLLER TUBE SUPPORT FOR AWNINGS Inventor: Stephen P. Lukos ABSTRACT OF THE DISCLOSURE     In a preferred embodiment, a roller tube support for an awning, the roller tube having wound thereon an awning fabric, the roller tube support including: a frame with the roller tube extending therethrough; a plurality of cylindrical rotatable rollers disposed along the frame in contact with the awning fabric on the roller tube, the rollers having axes parallel to the axis of the roller tube; each of the cylindrical rollers comprising inner and outer, nested, cylindrical shells attached together to form the cylindrical roller; the outer cylindrical shell being formed from a relatively soft material and the inner cylindrical shell being formed from a relatively hard material; and the degree of softness of the outer shell and the degree of hardness of the inner shell being selected such that the relative coefficient of friction between the outer shell and the awning fabric and the relative coefficient of friction between the inner cylindrical shell and a shaft on which the cylindrical roller is mounted are such that the awning fabric grips the outer cylindrical shell and causes the cylindrical roller to rotate on the shaft, such as to preclude the sliding of the awning fabric over the roller and minimizing wear of the awning fabric.
Patent CA-2116532-A1 (CA)
Title: Diving mask with lenses and method of fabricating the same
Inventor: KRANHOUSE JON
IPC: B63C11/12
Filed: 1992-08-28
Abstract: A diving mask (10) having hemispherically-shaped lenses (12) mounted on a flexible gasket or portion (14) and fitted to the contours of a user's face (16). Laser scanning or topographic mapping is used to determine the contours of the user's face (16). The hemispherically-shaped lenses (12) are then sized to fit the contours of the face (16). As a result, the spherical center of the lenses substantially coincides with the optical nodal point (26) of the user's eyes (24). The hemispherically-shaped lenses (12) may also be designed so that the spherical center of curvature of the hemispherically-shaped lenses (12) substantially coincides with the center of rotation (150) of a user's eyes (24). This virtually eliminates the phenomenon of underwater magnification-distortion caused by the difference in refractive indices of water and air.