baber/WOPTO huggingface dataset:
Patent CA-2044677-A1 (CA)
Title: Dispersant
Inventor: YAMADA JUNICHI
IPC: C09K23/52
Filed: 1991-06-14
Abstract: A dispersant comprises a polystyrenesulfonic acid having a weight-average molecular weight in the range of 2,000 to 100,000 or a salt thereof, wherein at least 70 % of the terminals of the polymer chain have an indane ring of the formula (I):                   ...(I) wherein X represents a cation selected from the group consisting of a hydrogen, alkali metals, alkaline earth metals, ammonium and organic amines, and n and m each represent 0 or an integer of at least 1. The dispersant has excellent properties of dispersing organic and inorganic substances and an effect of remarkably improving the stability of a dispersion system such as a coal/water slurry.
Patent CA-2046264-A1 (CA)
Inventor: CLEMENCE FRANCOIS
IPC: C07C319/20
Filed: 1991-07-04
Abstract: La demande concerne les produits de formule (IA): (IA) où n représente 0 à 4, R1 représente hydrogène ou R5 - CO -, R5 représentant : - alkyle, alkényle ou alkynyle éventuellement substitué, - un carboxycle ou hétérocycle éventuellement substitués, - un radical dans lequel : ou bien R10 et R11 forment avec l'atome d'azote un cycle renfermant éventuellement un autre ou plusieurs autres hétéroatomes éventuellement substitué, ou bien R10 et R11 représentent : - hydrogène, alkyle, alkényle, alkynyle, aryle, hétéroaryle éventuellement substitués, A représente alkylène, alkénylène éventuellement substitues par OH ou OAlk simple liaison, R2 représente un carbocycle ou hétérocycle éventuellement substitués, X représente oxygène ou soufre, ou bien R3A et R4A forment avec l'azote un cycle renfermant éventuellement un ou plusieurs autres hétéroatomes, éventuellement substitués, ou bien R3A et R4A représentent : - hydrogène, hydroxyle, alcoxy, acyle ou acyloxy ; carboxy ; cyano ; alkyle, alkényle ou alkynyle ; Rc ou Rc-O-, Rc représentant un cycle aliphatique ou arylique ; ou sous toutes les formes isomères et leurs sels, leur préparation, leur application comme médicaments.
Patent CA-2046368-A1 (CA)
Title: Fused thiophene compounds and uses thereof
Inventor: NAKAO TOHRU
IPC: C07D519/00
Filed: 1991-07-05
Abstract: ABSTRACT OF THE DISCLOSURE     A fused thiophene compound of the formula:                                             (I) or a pharmaceutically acceptable acid addition salt thereof.  In the above formula, one of E1, E2 and E3 is sulfur atom and other two of them are C-R1 and C-R2 respectively.  R1 and R2 are the same or different and each is hydrogen, halogen, nitro, amino, cyano, hydroxyl, formyl, alkyl, alkoxy, haloalkyl, arylalkyl, acyl, alkoxyalkyl, acyloxy-alkyl, hydroxyalkyl, acyloxyalkanoyl, alkoxyalkanoyl, hydroxyalkanoyl, aryloxyalkanoyl, haloalkanoyl, alkylthio, alkylsulfinyl, alkylsulfonyl, arylthio, arylsulfinyl, arylsulfonyl, hydroxysulfonyl, halosulfonyl, sulfamoyl, substituted sulfamoyl, carboxyl, acylamino, alkoxycarbonyl, carbamoyl, substituted carbamoyl or substituted amino.  D is -CH2- or -S(O)m- (m is 0, 1 or 2).  Q is straight or branched chain alkylene.  T is primary amino, secondary amino or tertiary amino.  A and B are the same or different and each is carbonyl or thiocarbonyl, or one of A and B is absent and the other of them is carbonyl or thiocarbonyl, or A is -CH2- and B is carbonyl or thiocarbonyl, and n is 1, 2 or 3 with the proviso that n is 2 or 3 when one of A and B is absent and the other of them is carbonyl or thiocarbonyl, and n is 1 or 2 when A and B are other combinations.  In the above definitions, (hetero)aromatic ring and heterocyclic ring may optionally be substituted by 1 to 3 substituents.  Said compounds have selective affinity for 5-HT1A receptor, or high affinity for 5-HT1A and dopamine D2 receptors so that they are useful as antianxietic drug, antipsychotic drug or drug for the disease of circulatory system.  The intermediates for said fused thiophene compounds are also disclosed.
Patent CA-2047643-A1 (CA)
Title: Programmable electronic control unit for water distribution systems, particularly for the irrigation of gardens, lawns, kitchen gardens, terraces and balconies
Inventor: ROMAN GIANFRANCO
IPC: A01G25/16
Filed: 1991-07-23
Abstract: A B S T R A C T    The control unit comprises a hollow external casing, an internal bolt rotatable in an internal cavity of said external casing to close and alternately to place in communication with a plurality of different transversal outlets a water inlet obtained axially in said bolt, a reversible electric motor for the rotation of said bolt, a cam element rotatable together with said bolt, and a plurality of electric limit switches co-operating with said cam element. An electronic control circuit with programmable times is provided to operate said electric motor in one direction or the other and up to the engagement of said cam element with one predetermined of said limit switches for the consequent displacement of the bolt in a position of closing said axial inlet or of placing it in communication with one of said transversal outlets.  Electric batteries supply power to said electronic circuit and to said electric motor. control keyboard housed in an accessible space of said external casing is connected electrically to said electronic control circuit to allow the programming of the times and methods of operation of said motor.
Patent CA-2048201-A1 (CA)
Inventor: SHIKATA SHIN-ICHI
IPC: H01L21/314
Filed: 1991-07-31
Abstract: Abstract of the Disclosure There is disclosed a process for forming a MES electrode by applying a metal material to a substrate of a III-V compound semiconductor, the metal material being in Schottky contact with the compound semiconductor, the process comprising: treating a surface of the substrate with a phosphoric acid-based etchant, and then sulfur or selenium-passivating the surface.
Patent CA-2049356-A1 (CA)
Title: Distributed feedback laser
Inventor: WESTBROOK LESLIE D
IPC: H01S5/12
Filed: 1990-04-02
Abstract: Improved single-modedness is achieved in distributed feedback (DFB) lasers by minimising the feedback provided at or near the ends of the DFB grating. The feedback may be minimised at one or both ends of the grating. Feedback is controlled by reducing the coupling to the grating. Coupling is reduced by reducing the depth of the grating's teeth and/or by increasing the spacing adjacent teeth.
Patent CA-2050657-A1 (CA)
Title: Multifunction high performance graphics rendering processor
Inventor: PEASLEE JOHN M
IPC: G06T15/00
Filed: 1991-09-04
Abstract: MULTIFUNCTION HIGH PERFORMANCE GRAPHICS RENDERING PROCESSOR                        ABSTRACT Disclosed is a multifunction cogenerator or graphics processor (10) for use in agraphics rendering processor. The graphics processor (10) comprises dual graphics engines operating in parallel, with one of the engines having higher operating priority than the other. The graphics processor (10) comprises a conics, vector, and area fill generator (43), a symbol generator (45), a bit block transfer operator (47), and a block texturing and complex clip mask processor (30) synchronously controlled by a multi-process scheduler (46). Included in the graphics processor (10) is a large display mem-ory (26) for receiving and storing program instructions and data generated by an exter-nal host processor (14), internal generators and processors, and a bit mapped memory (22) of a graphics display (24). The graphics processor (10) provides hardware specif-ic graphics functions and externally programmable general purpose processing.
Patent CA-2051111-A1 (CA)
Title: Single measurement method, and device, for displaying and rating the linearity of a transmission system
Inventor: MICHEL JEAN
IPC: H04B3/10
Filed: 1991-01-25
Abstract: ABSTRACT Single measurement method, and device, for displaying and rating the linearity of a transmission system The  single  measurement  method  allowing  the displaying and the rating of the linearity due to the nonlinearities in a system for transmitting a modulated wave with maximum peak level Nc and with maximum frequency band [F1, F2] consists in transmitting a composite signal comprising a signal with carrier frequency close to one of the ends of the band, modulated by a low-frequency signal with level varying between 0 and the peak level, and two signals with carrier frequencies situated at the other end of the band and distanced from one another by an intercarrier frequency, and in detecting and observing the possible presence of the signal at the intercarrier frequency at the output of the system depending on the variation in level of the  signal to be transmitted. Linearity is obtained when the signal at the intercarrier frequency is zero (or less than a predetermined value) regardless of the level of the signal to be transmitted in the space ¦0,¦Nc¦¦.        The invention applies to all fields in which linearity is required of transmission systems and is "compatible" with "analoguel" or "digital" video frequency baseband television transmission.
Patent CA-2051234-A1 (CA)
Inventor: NAGATOMO KENICHI
IPC: H04N1/00
Filed: 1991-09-12
Abstract: A facsimile system includes a base station con-nected to a wire network, and a plurality of extension sets connected to the base station through radio net-works.  The base station includes an NCU (Network Control Unit) for receiving an image signal received through the wire network, a printer for outputting an image corresponding to the image signal received by the NCU, a control circuit for calling an extension set in response to a call signal received through the wire network, a switching circuit for connecting the wire network to the NCU in response to a response signal transmitted from the called extension set, and a trans-ceiver for receiving the image signal transmitted from the extension set and sending the image signal to the wire network.  The extension set includes an image sen-sor for scanning a document and outputting an image signal corresponding to the document image, a trans-ceiver for transmitting the image signal output from the image sensor to the base station, an operation section for manually designating the start of facsimile recep-tion, and an extension set control circuit for sending out the response signal to the base station when the start of facsimile reception is instructed.
Patent CA-2051379-A1 (CA)
Title: Recreational flying vehicle
Inventor: PATEL NAVNIT R
IPC: G09B9/14
Filed: 1991-02-06
Abstract: A recreational vehicle combines a flying vehicle (1) and a motorized surface vehicle (3), such as a boat, car, or truck or snowmobile. The flying vehicle (1) is tethered to the surface vehicle (3) by four rods (22a, 22b, 24a, 24b), each of which is rotatably connected to the flying vehicle (1) and surface vehicle (3), so that the angle of attack of the flying vehicle (1) relative to the surface vehicle (3) remains constant or decreases, depending only on altitude. On/off, throttling, and steering of the motorized surface vehicle (3) are controlled by the pilot of the flying vehicle (1). The flaps (216a, 216b) of the flying vehicle (1) are automatically lowered for landing to increase drag and lower the stall speed and raised following take-off to reduce drag. Ailerons (116a, 116b) are automatically controlled to roll the flying vehicle (1) during turns.
Patent CA-2052522-A1 (CA)
Title: Nail enamel containing oxidized polyethylene coated inorganic pigments, and method for its preparation
Inventor: WEBER ROBERT A
IPC: A61K8/11
Filed: 1991-09-30
Abstract: Nail enamels of improved quality as regards settling, migration and flotation characteristics are provided by utilizing therein pigments coated with oxidized polyethylene.
Patent CA-2056672-A1 (CA)
Title: Halopropargyl mercaptotriazole compounds, compositions, uses and processes of preparation
Inventor: HSU ADAM C
IPC: A01N43/653
Filed: 1991-11-29
Abstract: ABSTRACT OF THE INVENTION    Compounds of the formula   (I) wherein    A    is selected from the group consisting of hydrogen, alkyl, aryl, and heterocyclic;        R    is selected from the group consisting of substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted phenyl, and substituted or unsubstituted heterocyclic; and X     is selected from the group consisting of halogen.
Patent CA-2056689-A1 (CA)
Inventor: KOBAYASHI NOBUTAKA
IPC: D06F39/02
Filed: 1991-11-29
Abstract: Disclosed is a water-activating particle casing with an annular float, said casing having openings to allow washing water to flow in and out from said casing and contact the water-activating particles contained therein, thereby increasing the cleaning capability of the washing water circulating in a washing vessel. The annular float is of closed cell rubber, surrounding the body of said casing, thereby permitting said casing to float and ride on the swirling circulation of washing water in the washing vessel. Thus, the water-avtivating particles can be effectively exposed to circulating washing water to permit their surface activities to be used to their limit in washing.
Patent CA-2056855-A1 (CA)
Title: Consolidation agent and method
Inventor: SHU PAUL
IPC: E21B43/02
Filed: 1991-12-03
Abstract: F-5983-L(PAC) ABSTRACT OF THE INVENTION         A sand consolidation method is provided for use in a borehole having an unconsolidated or loosely consolidated oil or gas reservoir which is likely to introduce substantial amounts of sand into the borehole and cause caving.  After perforating the borehole's casing at an interval of the formation where sand will be produced, an aqueous solution of potassium silicate is injected into said interval.  Thereafter, an alcoholic solution of hydrated calcium chloride is injected into the interval. A permeability retaining calcium silicate cement is formed in the interval.  Injection of the potassium silicate and hydrated calcium chloride solutions is continued until the interval has been consolidated by the calcium silicate cement to an extent sufficient to prevent sand migration and thereby prevent caving.
Patent CA-2056910-A1 (CA)
Inventor: DAMOND ERIC
IPC: C23C14/24
Filed: 1991-12-04
Abstract: Le procédé de dépôt selon l'invention, de type PVD, utilise un four de traitement thermique sous vide à l'intérieur duquel on évapore la substance d'une cible qui constitue une première électrode et on dépose les particules gazeuses ainsi produites sur un substrat porté à un potentiel d'une deuxième électrode, qui est différent de celui de la première électrode. Au cours de ce dépôt, le substrat est porté à une température de traitement comprise entre 800.degree.C et 1200.degree.C, et la cible ainsi que ses organes annexes sont constamment refroidis par un courant de fluide de refroidissement de manière à ce que la matière de la cible demeure solide et que l'évaporation produite à la surface de la cible s'effectue par sublimation. L'invention permet d'améliorer la régularité du dépôt, son ancrage dans le substrat ainsi que le temps de traitement.
Patent CA-2058261-A1 (CA)
Title: Means and method for integrated lighting fixture supports and components
Inventor: GORDIN MYRON K
IPC: F21V21/00
Filed: 1991-12-20
Abstract: A means and method for rigidly elevating a structure includes a base member securable in the ground and which has a portion extending above the ground. A pole section, having a bore inside a lower end, and an upper end, can be stacked upon the base means upwardly by slip fitting the pole section onto the base end and securing it in place. A flexible, easily transportable and durable system is thereby crested for elevating structures.      An integrated pole for elevating light fixtures and all other necessary components such as electrical components, can be predesigned, shipped, and easily installed at a desired location.      Pole top member, including rigidly secured cross arms, can be inserted on the top of a pole. All wiring for both the pole top cross arms, and the pole itself can be preconfigured and require simple connection of plugs between wiring segments. Additional features can include ballast boxes which quickly attach to the pole by easy mounting brackets, and which also allow communication with the interior of the pole to allow easy electrical connection of its components. Still further, the wiring can be protected and reliably secured in the pole by structure and methods which deter abrasion or slippage. The entire assembly can be shipped on sight and quickly and easily assembled without intensive labor, equipment, or cost.
Patent CA-2064433-A1 (CA)
Title: Fragrant thermoplastic foam and method of making the same
Inventor: MALONE BRUCE A
IPC: C08J9/00
Filed: 1992-03-30
Abstract: ABSTRACT        Substantially closed-cell thermoplastic foams having a fragrance incorporated into the foam during extrusion are found to provide fragrant and long lasting release characteristics provided the foam is at least 70 percent closed cells.  Generally the amount of fragrance is 0.001 to 5 weight percent of the total thermoplastic foam weight.     C-39,265-F
Patent CA-2066313-A1 (CA)
Title: New pharmaceutical composition
Inventor: STEVENS MALCOLM F G
IPC: A61K31/41
Filed: 1992-04-16
Abstract: 8-carbamoyl-3-methyl-(3H)-imidaro(5,1-d]-1,2,3,5-tetrazin-4-one for use in the treatment of glioma or mycosis fungoides.
Patent CA-2066759-A1 (CA)
Inventor: HERMANSKY CLARENCE G
IPC: A01N25/04
Filed: 1990-09-19
Abstract: 2066759 9103937 PCTABS00003 A formulation consisting of an active ingredient (herbicide or pesticide) suspended in an organic medium containing, in addition to usual additives, a polymer and protic solvent and a process for the preparation of such formulation.
Patent CA-2067082-A1 (CA)
Inventor: ELLIS JIM E
IPC: C01B31/04
Filed: 1992-04-24
Abstract: An improved replaceable carbon rupture disk element and element-holder assembly are provided.  The carbon rupture disk element is comprised of a carbon disk having a pair of opposing bores extending thereinto whereby an integral blow-out portion having a particular rupture pressure is formed in the disk connected to an enlarged rim portion.  A reinforcing ring is attached to the rim of the carbon disk having a height substantially equal to or greater than the height of the enlarged rim portion of the disk which prevents the rim portion from being subjected to compressive forces which change the rupture pressure of the blow-out portion.
Patent CA-2067956-A1 (CA)
Inventor: SAMI SAMUEL M
IPC: C09K5/04
Filed: 1992-05-04
Abstract: ABSTRACT OF THE DISCLOSURE           A  two-stage  air-to-air  heat  pump  comprises  two passageways between the outside and inside of a building with a passive heat pump first stage and an active heat pump second stage.   One end of the heat pump is disposed in one of the passageways and the other end in the other passageway and the pipe is tilted so one end is higher than the other.  Similarly, one coil of the active heat pump is disposed in one passageway and the other coil is disposed in the other passageway.  Air from the outside enters through one of the passageways, passes over one end of the heat pipe and then one of the coils into the inside.  Air from the inside passes over the other end of the heat pipe and then the other coil to the outside.  By choosing which end of the heat pipe is the higher end and the direction of the compressor, this two stage heat pump may either heat or cool air entering the enclosure.  The passive heat pump has a core  of heat  pipes partially  filled with  a  non-azeotropic refrigerant mixture of 70 parts R22 to 30 parts R152a.
Patent CA-2068127-A1 (CA)
Inventor: LUCAS GARY
IPC: G01N27/22
Filed: 1992-05-07
Abstract: ABSTRACT   A multi-electrode capacitive apparatus for measuring multi-phase flows comprising a pipe through which the flow is directed having the electrodes, typically ten in number, disposed around an outer surface thereof, sensing means being provided for connection to each electrode by means of a switching arrangement, the switching arrangement being operable to vary the connections of the electrodes to the sensing means such that the electric field seen within the pipe rotates; averaging means being provided to determine the average capacitance measured over an integer number ofrotations. The pipe can be formed from a material having substantially the same dielectric constant as the flowing material and is of sufficient thickness to optimise. the angular sensitivity of the device for flow at the pipe wall. Typically, the internal radius of the pipe is about 0.7 of the radius of the electrode arrangement.
Patent CA-2069649-A1 (CA)
Title: Quality factor improvement for filter applications
Inventor: ZENNAMO JOSEPH A JR
IPC: H03H7/01
Filed: 1992-05-27
Abstract: A tuned filter having an improved Q is disclosed in which two or more inductors are placed in parallel to increase the net Q relative to a single inductor of the same net inductance and/or two or more capacitors are placed in series to increase the net Q relative to a single capacitor of the same net capacitance to improve the Q of a tuned filter.
Patent CA-2069674-A1 (CA)
Inventor: KOHLHAMMER KLAUS
IPC: C08L57/10
Filed: 1992-05-27
Abstract: The  invention relates to  aqueous dispersions,  containing aminooxy crosslinking agents, of copolymers containing carbonyl groups, to processes for the preparation thereof and to the use thereof as a crosslinking system in binders, adhesives and coating agents.
Patent CA-2073457-A1 (CA)
Inventor: GALVIN GEORGE F
IPC: F16H21/28
Filed: 1991-01-21
Abstract: ABSTRACT      A crank mechanism for an  internal  combustion engine comprises  a  cylinder,  a  piston  reciprocable  within  the cylinder, and a rotatable shaft.  The piston is in drivable connection with the shaft via a connecting rod, a slipper and a torque lobe.  The connecting rod is pivotally fixed to the piston, and the slipper is pivotally attached to the free end of the connecting rod.  The torque lobe is a circular plate eccentrically mounted on the shaft for rotation therewith about the  axis  thereof.    The  slipper  is  slidable  along,  but restrained to, the rim of the torque lobe.   The slipper is constrained to move around a closed path, whereby rectilinear movement of the piston is converted to rotary movement of the torque lobe or vice versa.
Patent CA-2075357-A1 (CA)
Title: Device for dust separation from gases
Inventor: KEUSCHNIGG JOSEF
IPC: B04C5/28
Filed: 1992-08-05
Abstract: Abstract of the Disclosure A device for dust separation from flue gases produced during combustion of solid waste comprises a housing (1) wherein an untreated gas chamber (3) is arranged.  Several cyclone separators (10) are provided in the untreated gas chamber (3); the untreated gas enters the housings (12) of these separators by way of a tangential raw gas inlet (13).  Furthermore, a pure gas chamber (7) is located in the housing (1), separated from the raw gas chamber (3) by a partition (5).  The pure gas exits from the cyclone separators (10) through pipes (14) penetrating the partition (5) into the pure gas chamber (7).  The cyclone separators (10) each include a dip pipe (14, 15) respectively projecting from the top and from the bottom into the separating chamber (11) provided in the housing (12) of the cyclone separators (10).  The raw gas chamber (3) is separated at the bottom from a dust-collecting chamber (17) by means of a partition (6).  The upper and lower dip pipes (14, 15) are in communication with the opening (9) for the discharge of pure gas from the housing (1) of the device.