baber/WOPTO huggingface dataset:
Patent CA-2045065-A1 (CA)
Title: Preparation of polymers of carbon monoxide with olefinically unsaturated compounds
Inventor: DRENT EIT
IPC: C08G67/02
Filed: 1991-06-20
Abstract: A B S T R A C T     PREPARATION OF POLYMERS OF CARBON MONOXIDE   WITH OLEFINICALLY UNSATURATED COMPOUNDS      Polymers of carbon monoxide with one or more monomers comprising a group of the formula   which is linked by a hydrocarbylene bridge to a monovalent oxygen-containing group, and optionally additionally with one or more monomers of the formula  , can be prepared using a catalyst composition based upon a Group VIII metal and a phosphorus bidentate ligand of formula (R5R6P)2R, in which formulae R1 and R2 represent hydrogen atoms and/or hydrocarbyl groups, R is a bivalent organic bridging group which contains at least two carbon atoms in the bridge linking the two phosphorus atoms to each other and R5 and R6 represent identical or different optionally polar-substituted aliphatic hydrocarbyl groups.  Part of the polymers prepared are novel.
Patent CA-2046517-A1 (CA)
Inventor: MATSUMOTO KOJI
IPC: C08F285/00
Filed: 1991-07-09
Abstract: A polyvinyl chloride resin composition having a superior in falling weight impact resistance, stress-whitening resistance and optical characteristics, comprising a formulation of 100 parts by weight of a polyvinyl chloride resin and 2 to 40 parts by weight of a multi-stage copolymer obtained by polymerizing a resin component formable monomers in the range of from more than 30 parts by weight to 50 parts by weight, said resin component formable monomer being composed of a ratio of 25 to 55% by weight of methyl methacrylate, 2 to 15% by weight of an alkyl acrylate (alkyl group having 1 to 8 carbon atoms) and 30 to 60% by weight of an aromatic vinyl monomer in the presence of from 50 parts by weight to less than 70 parts by weight of a butadiene elastomer having a glass transition temperature ranging from -40°C to 5°C obtained by a copolymerization of a monomer mixture of 70 to 90% by weight of butadiene, 10 to 30% by weight of an aromatic vinyl monomer and a polyfunctional monomer added in an amount corresponding to 3 to 10 parts by weight per 100 parts by weight of a total amount of the butadiene and aromatic vinyl monomer, wherein a polymerization of the resin component formable monomer is conducted by polymerizing in the first stage methyl methacrylate in an amount corresponding to 45 to 85% by weight of the total amount of methyl methacrylate and the alkyl acrylate in an amount in the range specified above; subsequently polymerizing in the second stage the aromatic vinyl monomer in an amount in the range specified above in the presence of the polymer obtained in the previous stage, and further polymerizing in the third stage the remainder of methyl methacrylate in the presence of the polymers obtained in the first and second stages.
Patent CA-2048076-A1 (CA)
Inventor: TOYOSHIMA KEIICHI
IPC: G08B13/196
Filed: 1991-07-29
Abstract: A communication Path is established, only when monitoring a video signal on an object is required, between a sending station which acquires the video signal and a receiving station which monitors the acquired video signal through a display or the like.  Usually, the video signal is monitored delayed by a time taken for estab-lishment of the path.  In the video monitoring system, a sensor senses the occurrence of a particular event to be monitored, the video of the object existing at the occur-rence of the Particular event is stored in an image memory on the basis of the output of the sensor indica-tive of such sensing.  After the establishment of the communication path between the transmission and receiving stations, the stored video is transmitted to the receiv-ing station to thereby ensure monitoring a truly required video.
Patent CA-2048246-A1 (CA)
Inventor: HUGHES JOHN T
IPC: E04C2/16
Filed: 1991-07-31
Abstract: ABSTRACT OF THE DISCLOSURE            A non-planar formed body of particulate insulating material is made by first compacting substantially inorganic non-fusible particulate insulating material to form a plane panel.  Covering material such as glass cloth coated with a   settable   composition   or   thermoplastic   material effectively comprising a settable composition, is disposed adjacent one or both faces of the plane panel, in a mould.          The mould is then operated to form the panel  into the desired non-planar form, and the settable composition is allowed to harden.
Patent CA-2048948-A1 (CA)
Inventor: ICHIKAWA SHUICHI
IPC: C04B35/113
Filed: 1991-08-12
Abstract: A beta alumina sintered body having no tantalum component in an intergranular phase is manufactured by mixing raw materials consisting essentially of 8.0-10.0 wt% of sodium oxide, 3.0-5.5 wt% of magnesium oxide and/or 0.1-2.0 wt% of lithium oxide, 0.01-0.5 wt% of tantalum oxide, and the remainder of aluminum oxide to obtain raw material powders; forming the raw material powders to obtain a formed body; and sintering the formed body.
Patent CA-2050516-A1 (CA)
Title: Fusion sealing materials
Inventor: FRANCIS GAYLORD L
IPC: C09K3/10
Filed: 1991-09-03
Abstract: ABSTRACT      There is disclosed a sealing material based on a lead sealing glass having a mill addition of a crystalline material having the crystalline structure of magnesium pyrophosphate.  The effective coefficient of thermal expansion in a seal is substantially reduced by the mill addition, thereby permitting use with low expansion materials.
Patent CA-2052031-A1 (CA)
Inventor: STEGEMAN ALBERT P
IPC: H02M3/158
Filed: 1991-09-23
Abstract: An improved resonant charging circuit is disclosed for the charging of a pulse-forming network (5) from a voltage source (1), provided with:   i) a first serial circuit provided with a switch (3), an inductor (4), and a diode (11); ii) a second serial circuit provided with a diode (6), the inductor (4), a diode (10), and a switch (8); iii) a control unit (2) for opening and closing the switches (3, 8).     <IMAGE>
Patent CA-2052360-A1 (CA)
Title: Vessel structural support system
Inventor: JENKO JAMES XAVIER
IPC: G21C13/024
Filed: 1991-09-27
Abstract: 55,995 ABSTRACT OF THE DISCLOSURE Vessel  structural  support system for laterally and vertically supporting  a  vessel,  such as  a nuclear steam generator  having an  exterior bottom  surface and a side surface  thereon.    The  system  includes  a racket connected  to  the  bottom  surface.    A support column is pivotally connected to the bracket for vertically support-ing the  steam generator.  The system also includes a base pad assembly connected pivotally to the support column for supporting the  support column  and the steam generator. The base pad assembly, which is  capable of  being brought to a level position by turning leveling nuts, is anchored to a floor.  The system further includes a male key member attached to the side surface of the steam generator and a female stop member attached to an adjacent wall.  The male key member  and the  female stop member coact to laterally support  the  steam  generator.    Moreover,   the system includes; a snubber assembly connected to the side surface of the steam generator and also  attached to  the adjacent wall for dampening lateral  movement of  the steam gener-ator.  In addition, the system  includes  a restraining member of "flat" attached to the side surface of the steam generator and a bumper attached to the adjacent wall.  The flat and the bumper coact to further laterally support the steam generator.
Patent CA-2054194-A1 (CA)
Title: Location marker
Inventor: TOOHEY JAMES TIMOTHY
IPC: H05B37/02
Filed: 1990-05-03
Abstract: A location marker (10) is disclosed comprising a casing (11), a switch assembly (30) and a lens (50) enclosing a flashable strobe lamp (12). The location maker is powered by batteries (15) and an electronic circuit (60) converts the battery voltage to a trigger voltage for illumination of the strobe lamp (12). The switch assembly (30) is non-intrusive and maintains water tight integrity inside the casing (11). An embodiment of a RF transmitting location marker is also disclosed using transmitter circuit (85) and antenna (90, 95).
Patent CA-2054857-A1 (CA)
Title: Flame retardant polycarbonate compositions
Inventor: PRICE RONALD L
IPC: C08L53/00
Filed: 1991-11-04
Abstract: Mo-3521 FLAME RETARDANT POLYCARBONATE COMPOSITIONS         ABSTRACT OF THE DISCLOSURE A thermoplastic molding composition containing an aromatic polycarbonate resin, a flame retarding package and an impact modifier is disclosed.  The impact modifier is a maleic anhydride-functionalized block copolymer which consist of polystyrene endblock and poly(ethylene/butylene) midblocks. Characterized in its improved impact performance and flame retardance, the composition is suitable for the manufacture of molded articles of improved properties.
Patent CA-2060611-A1 (CA)
Title: Vitrified bonded finely milled sol gel aluminous bodies
Inventor: ROSTOKER DAVID
IPC: B24D3/14
Filed: 1992-02-04
Abstract: ABSTRACT OF THE DISCLOSURE     Vitrified bonded abrasive bodies prepared from sol-gel sintered aluminous grit particles and a vitreous (glass) bond exhibit improved abrasive performance by coating the surfaces of the grit particles with a metal oxide, preferably by means of an organofunctional metal-containing surfactant having  a metal content of at least about 10 weight percent.
Patent CA-2060780-A1 (CA)
Title: Surface mining
Inventor: LEMIEUX MARC
IPC: E21C41/26
Filed: 1992-02-06
Abstract: SURFACE MINING     ABSTRACT      There is disclosed a method of surface mining wherein a continuous surface miner is moved up and down an inclined surface to remove adjacent strips of material, which may be valuable commodity and/or waste, and the excavated material is transferred to a mobile conveyor which extends along the inclined  surface  generally  parallel  to  the  continuous surface miner.
Patent CA-2064650-A1 (CA)
Title: Expandable films and molded products therefrom
Inventor: WONG RAYMOND S
IPC: B29C70/50
Filed: 1992-04-01
Abstract: A thin, tacky, non-pourable film of incompatible in situ-expandable thermoplastic particles and thermosettable matrix resin that contains an essentially uniform density and thickness across the breadth of the film. The in situ-expandable mass is not pourable yet can be easily dispensed in a uniform manner within a mold and thereafter expanded to the dimensions of the mold. Composites and reinforced compositions, as well as methods of molding, are disclosed.
Patent CA-2065338-A1 (CA)
Inventor: MUELLER MARK D
IPC: E21B33/14
Filed: 1990-08-22
Abstract: A ported float shoe (5) and a landing collar (16) are attached at a first end of a portion of a casing string (4) and a sliding air trapping insert (20) is attached at the other end. The air trapping insert (20) includes a fluid flow passageway (24) blocked by a plug (22) attached by shear pins to the insert (20) or the air trapping insert is an inflatable insert (55) having a conduit (60) providing a fluid passageway to the first end. The air trapping insert and float shoe form an air cavity (12a or 12b) within the string portion (4). The air cavity provides buoyant forces during running, cementing or other casing operations within a borehole (2), reducing running drag and the related chance of a differentially stuck casing (4). It also allows reciprocation and rotation during cementing and avoids separate removal steps.
Patent CA-2065435-A1 (CA)
Inventor: STEWART CHARLES L
IPC: H04L5/14
Filed: 1990-09-20
Abstract: An apparatus for pre-piercing billets includes a generally cylindrical container for receiving and supporting a generally cylindrical billet, a mandrel bar mounted for axial movement along the axis of the cylinder for penetrating the billet, and a bolster for engaging the billet during penetration of the billet by the mandrel bar, wherein the bolster includes a bolster pin which is axially movable along the axis of the container, the bolster pin having an end which contacts the billet during penetration of the billet by the mandrel bar such that the billet deforms about the end of the bolster pin. A movable support is carried by the mandrel bar toward the billet during advancement of the mandrel bar prior to pre-piercing the billet, the movable support being configured to enter the generally cylindrical container to engage a portion of the container so as to provide additional structural rigidity to the mandrel bar to resist deflection of the mandrel bar during penetration of the billet.
Patent CA-2067651-A1 (CA)
Title: Vertical type forming, filling and closing machine for flexible package
Inventor: TSURUTA ORIHIRO
IPC: B65B9/20
Filed: 1992-04-30
Abstract: The present invention provides a vertical type forming, filling and closing machine for filling fluid substance discharged from an injection nozzle to a predetermined height into a bag and packaging the same.  The machine has an upper surface height detecting device for detecting the height of the upper surface of the fluid substance filled in the bag.  A cylinder is connected to the injection nozzle for moving the injection nozzle upwardly and downwardly.  A controlling apparatus for controlling the cylinder in response to the result of detection of the upper surface height detecting means is provided to move the injection nozzle upwardly or downwardly.          The controlling apparatus controls the cylinder so that the discharging opening of the injection nozzle is always buried, during filling, to a predetermined level from the upper surface of the fluid substance filled in the bag.
Patent CA-2068906-A1 (CA)
Title: Cleaning and finishing composition for treating wood surfaces
Inventor: SAURWEIN H PETER
IPC: C09G1/08
Filed: 1992-05-19
Abstract: CLEANING AND FINISHING COMPOSITION FOR TREATING WOOD SURFACES            ABSTRACT OF THE DISCLOSURE        The cleaning and finishing composition includes a wax, such as beeswax, turpentine, powdered limestone, such as powdered rottenstone and a sufficient amount of a dye such as burnt amber to give a nice finish to the surface being treated.
Patent CA-2069668-A1 (CA)
Title: End capped fibrous filters
Inventor: FRIEL RAYMOND T
IPC: B01D29/11
Filed: 1992-05-27
Abstract: ABSTRACT        Bonded end capped tubular or cylindrical filter elements are formed by fusing a fibrous mass of non-woven, intertwining, mechanically entangled, synthetic polymeric, microfibers possessing a temperature of dimensional heat instability and end caps formed from a dynamic vulcanizate comprising ethylene-propylene-diene-monomer (EPDM) rubber particles dispersed in a polypropylene matrix wherein the fused end capped filter exhibits minimal fiber pull back.
Patent CA-2070723-A1 (CA)
Title: Glandox: extraction of metal values from metal bearing ores
Inventor: HALLINAN MARK S
IPC: C22B11/08
Filed: 1992-06-08
Abstract: ABSTRACT            This invention relates to the extraction of metal values from metal  bearing  ores.  More  specifically,  according  to the invention, in a process for extracting metal values from metal bearing ores, there is provided a method of enhancing metal value recovery from the ore. The method  comprises  introducing, upstream of a metal recovery section 26, a gaseous or liquid agent capable of promoting recovery of the metal values from the ore, into the gland service water from at least one of the pumps 30.  The introduction of the gaseous or liquid agent is by means of an arrangement 35.  The agent may be oxygen.
Patent CA-2071503-A1 (CA)
Title: Controlled casting of al-si hypereutectic alloys
Inventor: ROGERS KEVIN P
IPC: B22D23/02
Filed: 1990-12-11
Abstract: Al base-Si hypereutectic alloys can exhibit problems of variable and unwanted microstructure throughout the section of the article being cast. This problem is overcome by controlled cooling of the mould in critical areas, to remove or prevent excessive accumulation of heat energy and avoid the formation of intense convection currents in still molten alloy. Consequently, the necessary coupled growth of the Al-Si eutectic is promoted and the resultant microstructure is substantially free of primary Si. The 3HA and modified 3HA alloys of the applicant are considered on the basis of their wear resistance and improved machineability for automotive applications, such as engine blocks and cylinder heads. A first feature of the controlled cooling procedure is supply of coolant to regions in the mould, above and extending from the gate, such that solidification progresses uniformly from the remote regions of the mould spaces towards the gate to give a substantially uniform microstructure throughout the casting. Various coolants may be used, so that temperature in the vicinity of the gate is 50 -75·C above those at the extremities. A second feature of the controlled cooling procedure consists of supplying melt to the mould cavity through a plurality of gates, spaced relative to one another in the critical control region of the mould. The result of using such a plurality of gates, is that the energy accumulated is more widely distributed in a plurality of critical control regions and gate regions and temperature differentials between these.
Patent CA-2074875-A1 (CA)
Inventor: MATSUBARA MIYUKI
IPC: H04N1/40
Filed: 1992-07-29
Abstract: Image data is thinned out by using thinning patterns having arrays not synchronized with an image data array according to an area gradation method at the same duty, and the resulting thinned image data is divisionally recorded on a predetermined area of a recording medium by using different record areas of a recording head while a scan operation is performed a plurality of number of times. The thinning patterns are formed such that substantially equal quantities of an ink are implanted in a plurality of number of times of the divisional recording.
Patent CA-2076403-A1 (CA)
Title: Assay for evaluating inhibition of pmn elastase by n-substituted azetidinones
Inventor: HANLON WILLIAM A
IPC: C12Q1/44
Filed: 1992-08-19
Abstract: TITLE OF THE INVENTION ASSAY FOR EVALUATING INHIBITION OF PMN ELASTASE BY N-SUBSTITUTED AZETIDINONES            ABSTRACT OF THE INVENTION         N-substituted azetidinones are a class of inhibitors of human leukocytes elastase which are known to be useful in the treatment of a wide variety of antiinflammatory and antidegenerative diseases. In inhibiting elastase, the therapeutic agents are shown to form a characteristic stable complex with the enzyme.  In the assay disclosed herein, the inhibitor-enzyme complex is advantageously hydrolyzed and specific product(s) of the hydrolysis are measured.  The assays are useful in a clinical setting, for determining appropriate dosage and assessing the effectiveness of treatment.
Patent CA-2080256-A1 (CA)
Inventor: DI CROCE A MICHAEL
IPC: H01M8/24
Filed: 1992-10-09
Abstract: ABSTRACT OF THE DISCLOSURE A solid oxide fuel cell generator has a plenum containing at least two rows of spaced apart,  annular, axially elongated fuel cells.   An electrical conductor extending between adjacent rows of fuel cells connects the fuel cells of one row in parallel with each other and in series with the fuel cells of the adjacent row.
Patent CA-2082687-A1 (CA)
Title: Heater cores having exposed surfaces burnished by wet blasting
Inventor: BRODENE TIMOTHY
IPC: B24C9/00
Filed: 1992-11-12
Abstract: ABSTRACT OF THE DISCLOSURE         A heater core is freed of solder and flux contaminants  produced  during  its  manufacture  by burnishing the exposed surfaces of the heater core by a wet  blasting  operation  with  a  slurry  of  abrasive particles.  The burnishing of the cores is achieved in a continuous operation  in which the heater cores are advanced in succession through a housing from a loading station to an unloading station.  In the housing, the heater cores are burnished with jets of slurry from nozzles after which the heater cores are rinsed with water.   The slurry is recycled and maintained at a particular concentration and pH for uniform treatment of the successive heater cores.
Patent CA-2083716-A1 (CA)
Title: Electro hydraulic deep well sampling equipment
Inventor: BOE EINAR
IPC: E21B49/08
Filed: 1992-04-29
Abstract: A device for deep well sampling when drilling for, or production of, oil and gas, consists of a chamber for samples (43) and a valve (27) for opening and closing the chamber containing the samples. The device is electrohydraulically operated by the valve (27) for filling and closing the chamber for samples (43), which valve (27) is controlled by means of a hydraulic system contained in the deep well sampling device. The hydraulic system, a panel (1) and the control of the sampling device is operated by an electric system located in the panel (1) from which the signals are sent via a combined lifting and electric conducting cable.
Patent CA-2083839-A1 (CA)
Title: Device for automatic collection, intermediate storage and emptying of blood from slaughter animals
Inventor: SJOEBERG JOHN
IPC: A22B5/04
Filed: 1991-05-23
Abstract: The invention relates to a device for automatic collection, intermediate storage and emptying of blood from slaughter ani-mals. The device comprises an endless track (2), a number of containers (3) movable along the track and a filling station (4) and an emptying and washing station (5) which are arranged along the track. The device is characterised in that the containers are loosely arranged in relation to each other and to the track (2). As a result, the weighing (6) of a filled container can be carried out effectively immediately after the filling operation. Moreover, containers can temporarily be switched out from the track.
Patent CA-2083964-A1 (CA)
Title: Eigenfrequency phase shift control loop for fiber optic gyros
Inventor: GRAVEL DAVID E
IPC: G01C19/72
Filed: 1991-05-24
Abstract: A fiber optic rotation sensor having a pair of light beams counterpropagating in a loop includes a phase modulator for modulating the waves at a first frequency, upon exiting the loop the waves are combined into a light intensity signal indicative of rotation rate and is sensed. A signal at the first frequency is quadrature phase shifted by a lower frequency signal and summed with the sensed rate signal, an amplifier amplifies the summed signals, the amplifier also inherently induces undesirable phase shifts by an equal amount in both the sensed rate signal and the quadrature signal. The quadrature signal is demodulated and used in feedback fashion to control the phase of a variable phase shifter which provides a signal at the first frequency whose phase is shifted by an amount equal to the undesirable phase shift of the sensed rate signal, the variable phase shifter signal and the sensed rate signal being provided to a demodulator to demodulate rotation rate information from the sensed rate signal.
Patent CA-2089664-A1 (CA)
Inventor: ROSS GUY
IPC: G01R27/02
Filed: 1991-08-08
Abstract: A method and an electrical measur-ing apparatus (10) for analyzing an actual alternating voltage present on an electrical wire (11) or electrical equipment whereby to determine if the voltage originates from a high or low impedance source for the safety of the operator. A bi-impedance (12) probe is connected to the alternating voltage to be analyzed and the voltage signals are pro-cessed. The actual probe consists of a first series of uni-directional (13) elements and a second parallel series of high value resist-ance elements (14). The output of the paral-lel connected series of elements is connected to a third series of low value resistance ele-ments (15, 16, 18). A measuring circuit (17) is connected to the third series of low value resistance elements and is capable of discri-minating between the voltage signals from both of the series of resistive elements and is provided with a calculating circuit (28) to determine if the voltage signals originate from a high or low impedance source. The output of the probe is connected to ground (19). An indicator (32) indicates the condition of the impedance source. An alarm indicator (32) may indicate if a predetermined threshold value, representative of a low impedance source, is exceeded.