baber/WOPTO huggingface dataset:
Patent CA-2006316-A1 (CA)
Title: Method of fcc spent catalyst stripping for improved efficiency and reduced hydrocarbon flow to regenerator
Inventor: PAPPAL DAVID A
IPC: C10G11/18
Filed: 1989-12-21
Abstract: METHOD OF FCC SPENT CATALYST STRIPPING FOR IMPROVED EFFICIENCY            AND REDUCED HYDROCARBON FLOW TO REGENERATOR                      ABSTRACT          A method and apparatus are disclosed to reduce the amount of unstriped hydrocarbon flowing to the regenerator in an FCC unit.  The catalyst stripper section is heated by indirect heat exchange with a mixture of hot regenerator flue gas and regenerated catalyst.
Patent CA-2007055-A1 (CA)
Title: Theophylline dosage form
Inventor: BOEHM GARTH
IPC: A61K9/50
Filed: 1990-01-03
Abstract: ABSTRACT OF THE DISCLOSURE      A sustained released pharmaceutical pellet composition for the active ingredient theophylline which is provided as a core element.  The coating for the core is partially soluble at a high acidic pH to provide slow release of theophylline from the core.  The coating includes at least one insoluble matrix polymer selected from the group consisting of acrylic ester polymers, methacrylic ester polymers and mixtures thereof; at least one enteric polymer selected from the group consisting of cellulose acetate phthalate, hydroxypropyl methyl-cellulose phthalate, polyvinyl acetate phthalate, methacylic acid copolymer, hydroxypropyl methylcellulose acetate succinate, shellac, cellulose acetate trimellitate and mixtures thereof and at least one partially acid soluble component selected from polyvinylpyrrolidone, hydroxypropyl cellulose, hydroxypropyl methylcellulose, polyethylene glycol, polyvinyl alcohol and monomers therefor and mixtures thereof.  This coating provides for the slow release of theophylline from the core to maintain the desired effective blood levels of theophylline.
Patent CA-2010065-A1 (CA)
Inventor: DOLLE VOLKER
IPC: C08F210/06
Filed: 1990-02-14
Abstract: Process for the preparation of a random propylene copolymer Copolymerization of propylene with small amounts of other olefins in the presence of a catalyst composed of a metallocene of the formula I    and an aluminoxane gives a copolymer in high yield. This copolymer has a homogeneous composition and the sequence length of the comonomer blocks is below 1.25. The molecular weight is in the range of about 100000 to 360000 g/mole, the polydispersity M w/M n, is in the range from 2.5 to 5.5. The copolymer has a low crystallinity and a high transparency and is not tacky. Test specimens of this copolymer have an enormous tensile strength. The copolymer is particularly suitable for the preparation of sheets for thermoforming and for the blowmolding of hollow articles.
Patent CA-2012075-A1 (CA)
IPC: H02H7/26
Filed: 1990-03-13
Abstract: The square wave phase comparison signals generated for  each  phase  of  a  power  distribution  system  by  phase comparison  relays  at each end of a protected  three phase transmission line segment are combined to generate a single, multi-level   signal   with   discrete   values   for   each instantaneous  combination  of  square  wave  signals.    The single, multi-level  signal  is  used  to modulate a carrier signal which is transmitted over a single channel of a two-way  communications  link  to  the  other  terminal  where the carrier signal is demodulated to reproduce the multi-level signal.   The reproduced multi-level signal is then decoded to generate remote square wave signals which are compared with the phase of locally generated square wave signals to generate trip signals for circuit breakers at the respective terminals.     Square  waves   representative   of  priority functions, such as direct transfer trips, can be integrated into the single, multi-level signal transmitted to the other terminal.
Patent CA-2013604-A1 (CA)
Inventor: PIEPERHOFF HANS J
IPC: B65F3/04
Filed: 1990-04-02
Abstract: In order to prevent the manipulation of switches, such as flap and acknowledgement signal switches, which are provided for the safety of the operating personnel, these switches are connected to a circuit monitoring device 25 which is electrically connected to the automatic control device 30 for the automatic emptying of containers, in particular waste containers, into collecting containers. This circuit monitoring device 25 issues a release signal to the automatic control device 30 only when the desired switching state of the switches 11 and 16 is present. Additionally, further safety switches can be provided, such as for example an upper and a lower reference switch 9 and 32. Moreover, the circuit monitoring device is also connected to a barrier switch 13 and designed to test the switching position of the gear shifting of the vehicle 22. 
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Patent CA-2014182-A1 (CA)
Title: Line coupling device
Inventor: FALCO ROBERT N
IPC: H01R13/28
Filed: 1990-04-09
Abstract: ABSTRACT OF THE DISCLOSURE     There is disclosed herein a line coupling device whose coupling function is achieved by interleaving of plural elongate latching members bearing teeth thereon.  The elongate latching members are supported in a member such that the coupling device may be readily coupled and uncoupled.
Patent CA-2016449-A1 (CA)
Inventor: HILLENIUS STEVEN J
IPC: H01L21/763
Filed: 1990-05-10
Abstract: Through the use of a specifically configured buried dielectric region, devices with strict design rules, e.g., design rules of 0.9 micrometers and less, are significantly improved. In particular, the recessed dielectric region, e.g., field oxide, separating device areas in an integrated circuit, either has a buried conducting shield surrounding the periphery of the oxide or has a configuration such that the upper surface of the dielectric is no more than 20 nm below the upper surface of the silicon forming the device active region. By insuring a suitable configuration, parasitic capacitance resulting in slower operation is considerably reduced while leakage currents are maintained at an acceptable level.
Patent CA-2016726-A1 (CA)
Inventor: CHUN VICTOR L
IPC: B21D28/36
Filed: 1990-05-14
Abstract: A  marking tool holder (10) for a punch press,  in  which  a plurality  of  marking  tools  (46) are mounted  in  an  indexing carrier (38) for selective activation by the press ram  (14).   A non-positive   connection  effects  driving  of  the  preselected marking tool (46) to eliminate the need for precise adjustment of the marking tool position.  In a first embodiment, a pair of very stiff springs (138) are interposed between a ram engaged  plunger (124)  and  a striker (70),  while in the  second  embodiment,  a striker  mass (158) attached to the striker (70) and carried in a body member (60) which is accelerated by the ram (14) to generate kinetic energy converted into a marking pressure when the marking tool (46) impacts the workpiece (W).
Patent CA-2018226-A1 (CA)
Title: Casting apparatus
Inventor: LAMBERT DEREK
IPC: B22D17/04
Filed: 1990-06-04
Abstract: ABSTRACT:                     "CASTING APPARATUS"        A casting apparatus (1) comprises a tank (2) receiving molten metal (3) in use, a housing (73) comprising a dispensing cylinder (4) and a valve means (8) in communication with the cylinder, locating means (12,14) for removably locating the housing in the tank, a dispensing port (10), connection means (80) defining a passageway (30,81) between the valve means and the dispensing port, the connection means including a releasable coupling (59,61) through which the passageway normally extends and having first and second parts (59,61) which are separable to facilitate removal of the housing, the first and second parts being connected to the dispensing port and the valve means respectively and being relatively swivelable to allow adjustment of the housing relative to the tank.   The first part (59) of the coupling is mounted on an internal surface (82) of the tank beneath the normal level (3a) of molten metal in the tank and the housing is held in position by a compliant mounting (43,71). The apparatus is suitable for casting low melting point alloys to be used as cores in plastic mouldings.
Patent CA-2022189-A1 (CA)
Inventor: BERTIGER BARY R
IPC: H04B7/26
Filed: 1990-07-27
Abstract: A power management system for a worldwide multiple satellite system having satellites (12, 16, 17) positioned latitudinally in a polar orbiting constellation, each satellite having a plurality of antenna beams, each beam having a given area of coverage or "cell," the total sum of the cells for each satellite forming a larger coverage for the entire satellite (22, 23, 24), the satellites each comprising solar cells and batteries wherein the energy within the batteries is generated by the solar cells and must be efficiently managed. The system comprises an earth based control station (14) which programs each of the satellites within the constellation to supply power to the antenna beams of each satellite at predetermined times to avoid overlapping coverage. Each satellite comprises a voltage regulated linear power amplifier (34) to supply only the power needed for the demand within each of the antenna's cells.
Patent CA-2023726-A1 (CA)
Title: Pyrroloquinoline compounds
Inventor: MATSUO MASAAKI
IPC: C07D/
Filed: 1990-08-21
Abstract: ABSTRACT            Compounds of the formula:                             in which R1 and R2 are each hydrogen or lower alkyl, R3 is aryl or heterocyclic group, each of which may be substituted by suitable substituent(s), R4 is hydrogen, halogen or lower alkyl, A  is methylene, methine, oxa, thia, sulfinyl or sulfonyl, Y  is vinylene or ethylene, Z  is a group of the formula:                     or       wherein R5 is carboxy or protected carboxy, and R6 is hydrogen or hydroxy-protective group, and the line of ---- is a single or double bond, and pharmaceutically acceptable salts thereof.  A process for the preparation of these compounds, pharma-ceutical compositions containing them and the prepara-tion thereof, and their uses for treating hyper-cholesterolemic and hyperlipoproteinemic states and associated conditions are also disclosed.  These compounds and salts are for example useful for treating atherosclerosis, angina, myocardial infarction, cerebral vacular occlusion, arterial aneurism, peripheral vacular disease, recurrent pancreatitis, xanthomas, diabetic nephropathy, and the like.
Patent CA-2023733-A1 (CA)
Title: Chlorine dioxide generation from chloric acid
Inventor: LIPSZTAJN MAREK
IPC: C01B11/02
Filed: 1990-08-21
Abstract: Chlorine dioxide, useful as a pulp mill chemical, is produced without producing sodium sulfate effluent for disposal, by effecting reduction of chloric acid in an aqueous reaction medium in a reaction zone at a total acid normality of up to about 7 normal in the substantial absence of sulfate ion and in the presence of a dead load of sodium chlorate added to and subsequently removed from the reaction medium. Chloric acid for the process is produced electrolytically from an aqueous solution of the deadload sodium chlorate and make-up quantities of sodium chlorate. The chloric acid reduction to produce chlorine dioxide may be effected using methanol or electrolytically.
Patent CA-2024059-A1 (CA)
Title: Composition and method for hardening an aqueous alkali metal silicate solution
Inventor: MASCIOLI ROCCO L
IPC: B28B7/40
Filed: 1990-08-27
Abstract: ABSTRACT OF THE DISCLOSURE   Aqueous solutions of alkali metal silicate are hardened using blends of alkylene carbonates and aliphatic alcohols such as alkylene diols, polyalkylene glycols, or hydroxyalkyl ethers.          The aliphatic alcohol decreases the set time from that obtained using alkylene carbonate alone.  The hardened alkali metal silicate compositions are useful as binders in the preparation of foundry molds or in other applications requiring agglomeration of particulate matter.
Patent CA-2024333-A1 (CA)
Title: Constrained geometry addition polymerization catalysts, processes for their preparation, precursors therefor, method of use, and novel polymers formed therewith
Inventor: STEVENS JAMES C
IPC: C08F4/44
Filed: 1990-08-30
Abstract: Metal coordination complexes comprising a metal of Group 3 (except Se), 4-10 or the lanthanide series and a delocalized n-bonded moiety have said moiety substituted with a constrain-inducing moiety which reduces the angle at the metal between the centroid of said n-bonded moiety and at least one remaining substituent. Metal coordiantion complexes comprising a metal of Group 3 (except Se), 4-10 or the Lanthanide Series and a cyclopentadienyl or substituted cyclopentadienyl group forming part of a ring structure in which the metal is both bonded to an adjacent convalent moiety and held in association with the (substituted) cyclopentadienyl moiety. Amidosilane and amidoalkanediyl compounds covalent moieties are particularly preferred.      The complexes of the invention form addition polymerization catalysts with activing cocatalysts such as Lewis acids, ammonium salts, oxidizing agents and, especially, aluminum compounds, particularly aluminum trialkyls.      Novel polymers, including E1pE resins and pseudo-random copolymers, can be obtained using the catalysts of the invention.
Patent CA-2024530-A1 (CA)
IPC: A01D34/84
Filed: 1990-09-04
Abstract: EDGER WITH BELT BRAKING DEVICE                ABSTRACT OF THE DISCLOSURE    The present invention relates to an edger with a belt braking device, including a belt driving device and a cutter blade, which are arranged at the side of an edger vehicle.  A bearing housing portion of the cutter blade is provided for forward and rearward movement, a belt cover for covering the whole driving belt is fixed to the edger vehicle, and a belt braking device is arranged between the front end of the belt cover and the front driven pulley, whereby performing ON-OFF operation of a clutch and engagement/ disengagement of a brake simultaneously is enabled.  In this way, the fixed belt cover can be compact and the operation for changing of working conditions can be simplified.
Patent CA-2028066-A1 (CA)
Title: Lighter device
Inventor: LEE SHAN
IPC: F23Q2/00
Filed: 1990-10-19
Abstract: LIGHTER DEVICE          ABSTRACT          A  lighter  device is described  featuring  a  new burning  system which is of a rugged structure and  comprises relatively  few  parts whic are easy to  manufacture  and  to assemble.  The  novel  burning system provides  for  reliable operation of the device over and extended period of  operable life.            The   novel  burning  system  comprises   combined vaporizer-and-burner  unit in the form of a short metal  tube arrangement  comprising  two sections of metal  tube  axially aligned with one another. The upper section may have a larger diameter than the lower section. The combined  vaporizer-and-burner  unit is arranged as a separate member separately from and  above  the nozzle in a predetermened  vertical  distance therefrom.  A perforated metal sheet partitions the two  tube sections of the vaporizer-and-burner unit thus providing  for additional  intensive  mixing and vaporizing the  gas  stream entering  at the lower end of the unit and ambient air  drawn Cont'd/1 into  the  unit by the gas jet. In the upper section  of  the vaporizer-and-burner  unit  there is a catalyzer  wire  which will  provide for re-ignition of the gas/air mixture in  case the  lighter flame would become extinguished by ambient  wind flow.                  Cont'd/2
Patent CA-2028902-A1 (CA)
Title: Method and apparatus for a computer display system with a three dimensional cursor shadow
Inventor: VENOLIA DANIEL S
IPC: G06F3/0481
Filed: 1990-10-30
Abstract: ABSTRACT          A computer program provides for the display of a shadow region associated with a three dimensional cursor. A cursor device is used to move the cursor in three dimensions on the display screen, wherein the shadow region is displayed on a shadow plane and follows the movement of the cursor. A shadow represented by an opaque face cursor or a translucent face cursor is provided. The computer program logic determines which faces of the cursor cast shadows. Logic is also provided to detect situations where the shadow is not visible.
Patent CA-2029539-A1 (CA)
Title: Nickel-based single crystal superalloy
Inventor: AUSTIN CURTISS M
IPC: C22C19/05
Filed: 1990-11-08
Abstract: PATENT           NICKEL-BASED SINGLE CRYSTAL SUPERALLOY              ABSTRACT OF THE DISCLOSURE     A nickel-based superalloy consisting essentially of, in weight percent, from about 4 to about 5 percent chromium, from about 11 to about 14 percent cobalt, from about 4 to about 8 percent tungsten, from about 6 to about 10 percent tantalum, from about 5 to about 7 percent aluminum, from about 5.5 to about 8 percent rhenium, from about 0 to about 0.50 percent hafnium, from about 0 to about 0.07 percent carbon, from 0 to about 0.01 percent boron, from 0 to about 0.030 percent yttrium, from 0 to about 6 percent ruthenium, from 0 to about 1 percent molybdenum, from 0 to about 1 percent niobium, and the balance essentially nickel.  Articles made from the superalloy of the invention are especially useful when cast as single crystal airfoils for use in advanced gas turbine engines.
Patent CA-2030763-A1 (CA)
Title: Method for forming through holes in a polyimide substrate
Inventor: LANTZER THOMAS D
IPC: H01L21/311
Filed: 1990-11-23
Abstract: TITLE METHOD FOR FORMING THROUGH HOLES     IN A POLYIMIDE-SUBSTRATE             ABSTRACT OF THE DISCLOSURE Hole formation in a polyimide substrate employs a carbon dioxide laser.
Patent CA-2031528-A1 (CA)
Inventor: GUSTAVSON LINDA M
IPC: C07K16/00
Filed: 1990-06-15
Abstract: Chelating compounds of specified structure are useful for radiolabeling targeting proteins such as antibodies. The radiolabeled antibodies, or catabolites thereof, demonstrate improved biodistribution properties, including reduced localization within the intestines.
Patent CA-2032084-A1 (CA)
Inventor: KIDO TORU
IPC: H02M7/06
Filed: 1990-12-12
Abstract: ABSTRACT OF THE DISCLOSURE     In a power monitor circuit, AC power-line voltage is converted by a DC power supply to a regulated DC voltage. The DC power supply shuts down itself in the event of a failure therein. The output of DC supply rises from zero to a specified value in slow response to power-on state and drops to zero in slow response to a significant drop in the AC voltage. A rectifier-filter converts the AC voltage to a nonregulated DC voltage. The output of the rectifier-filter rises in quick response to the power-on state and drops in quick response to the significant AC voltage drop. If the output of DC power supply drops below a specified threshold due to AC power-line failure or due to its own failure, a DC low-voltage signal is generated. If the output of rectifier-filter rises above a specified low level a first AC transitory signal is generated and if it drops below a specified high level a second AC transitory signal is generated. A latch circuit is energized with the nonregulated DC voltage to latch the DC low-voltage signal if it occurs during the interval between the first and second AC transitory signals and supplies a DC alarm signal to computer circuitry. A power controller is energized with the regulated DC voltage to supply control signals to the computer circuitry in response to the first and second AC transistory signals.
Patent CA-2032596-A1 (CA)
Inventor: DAUDER GUARDIOLA AGUSTIN
IPC: B65B5/10
Filed: 1990-12-18
Abstract: ABSTRACT       Process for filling containers with products in a predetermined distribution Process  for  filling  containers  with  products  in  a  predetermined distribution,  consisting in  transporting  the  products  in  two  or more independent rows, discharging them as a unit onto two supports, transferring them as a unit and simultaneously by suction to as many containers, placing as many transverse carriers into the latter, thus forming each row in each container displacing them transversely, holding down the last completed row and advancing the containers, repeating the cycle with an opposite transverse displacement and so forth to completion of the layer or layers of products.
Patent CA-2032884-A1 (CA)
Title: Radiation-sensitive positive resist composition
Inventor: HIOKI TAKESHI
IPC: G03F7/023
Filed: 1990-12-20
Abstract: ABSTRACT OF THE DISCLOSURE         A positive resist composition comprising a 1,2-quinone diazide compound and an alkali-soluble resin which comprises a resin (I) obtainable through a condensation reaction of a phenol mixture containing m-cresol and 2-tert.-butyl-5-methylphenol with an aldehyde., which has well balances properties.
Patent CA-2032938-A1 (CA)
Title: Mutant microorganisms useful for cleavage of organic c-s bonds
Inventor: KILBANE JOHN J II
IPC: C12R1/01
Filed: 1990-12-21
Abstract: A mutant Rhodococcus rhodochrous strain ATCC No. 53968 which has the property of sulfur removal and sulfur metabolism by selective cleavage of C-S bonds in organic carbonaceous materials.
Patent CA-2033523-A1 (CA)
Title: Packaging machine comprising a system for conveying packaging material
Inventor: FOCKE HEINZ
IPC: B65B43/12
Filed: 1991-01-02
Abstract: A b s t r a c t : (referring to Fig. 2) In  the  production  of  (cigarette) packs made of blanks of thin cardboard, the latter are delivered  as  blank  stacks, normally  stacked  on pallets. The blank stacks delivered in this or other ways  have  to  be  continuously  filled  into supply  magazines of high performance packaging machines. It is therefore necessary, particularly  because  of  the  high working  speed  of  the packaging machines, to mechanize and to a large extent automatize  the  transport  of  the  blank stacks.  Transporting  blank  stacks  is  quite  problematic because of accelerations and decelerations occuring  at  the same  time.  The basic embodiment of the invention therefore provides a socalled pocket  conveyor  between  feed  station and  supply  magazine,  the pockets of which holding a blank stack each and not only transporting the  blank  stacks  but also  fixing  these  in  proper stack position during trans-port. Insofar as further shifts and intermediate transports are  necessary,  the  invention  also  provides  means which ensure a transport of the blank stacks  without  endangering the stack arrangement.
Patent CA-2038001-A1 (CA)
Title: Pacing unit
Inventor: MIYATA SHINICHI
IPC: A61N1/375
Filed: 1991-03-11
Abstract: ABSTRACT OF THE DISCLOSURE     A pacing unit is disclosed. The pacing unit comprises a catheter with pacing electrodes and leads extending from the pacing electrodes through the body of the catheter, a catheter holder for holding the catheter, and a pacer. Into the pacer, the connector plugs of the leads is plugged with the catheter holder fixedly attached to the pacer by inter-locking means consisting of members fitting in respect to each other.
Patent CA-2038175-A1 (CA)
Title: Polysilicon and process therefor
Inventor: ALLEN ROBERT H
IPC: C30B15/02
Filed: 1991-03-13
Abstract: IMPROVED POLYSILICON AND PROCESS THEREFOR               Abstract of the Disclosure Semiconductor grade polysilicon in the form of free flowing, approximately spherical particles produced in a fluidized bed, and having a reduced surface silicon dust content and hydrogen content.  Such products are formed in two operations utilizing fluidized beds.  In the first operation, silicon is deposited on polysilicon seed particles.  In the second operation, trichlorosilane or other halogenated silane is decomposed at an elevated temperature to provide a thin silicon coat, which binds the silicon fines to the larger particles.  While the particles are exposed to the decomposition temperature employed, hydrogen diffuses out of the particles resulting in a reduction in hydrogen content and producing a polysilicon particle with a smooth shiny surface.