baber/WOPTO huggingface dataset:
Patent CA-2025986-A1 (CA)
Title: Purification and aeration of open waters
Inventor: BERNHARDT BRUNO
IPC: C02F3/20
Filed: 1990-09-21
Abstract: ABSTRACT OF THE DISCLOSURE      The system used for the purification and aeration of open water incorporates a floating housing that has openings for the introduction and discharge of water and for the introduction and exhaust of air or other gases.  Because of the formation of an under-pressure in that portion of the housing that lies above the surface of the water, air or other gases are passed to an air-receiving chamber that lies below the surface of the water that is found within the floating housing and which is claimed at the top by means of a nozzle plate through which the air rises in small bubbles through the water above it, thereby giving up oxygen to the water and removing volatile substances from the water.
Patent CA-2027551-A1 (CA)
Title: Arrangement for a vacuum cleaner
Inventor: SCHILLER MIKAEL A W
IPC: A47L9/28
Filed: 1990-01-24
Abstract: ABSTRACT       A  vacuum  cleaner  (10)  is connected  to  a  dust collecting nozzle  (14) via a hose (11) provided with a hose handle (12).  The vacuum cleaner comprises a suction fan  (17),  driven  by  an  electric motor  (18),  and  an electric  control  device  (20)  for  the  control  and/or setting of the motor speed for different operating modes.   The control device (20) is operated by an operating device (21)  disposed  on  the  hose  handle   (12)  and  being electrically connected to the control device (20) via two coils, coupled to each other, a primary coil (28) of which being disposed in the vacuum cleaner and a secondary coil (26) being disposed in the hose.  A conversion device (31, 34, 36, 38), disposed in the vacuum cleaner, is provided to sense and convert the states of a secondary circuit (25, 26), having as a part the secondary coil (26), said states corresponding  to  different operating modes  and being caused by said operating device.   The operating device  (21)  has  a  design  so  as  to  operate,  via  an intermediate means (23), the secondary circuit (25, 26) to take two separate electrical states.  In dependence on the operating mode set by the operating device  (21),  the intermediate means (23)  operates to keep the secondary circuit (25,  26)  in one state during a  time which is dependent on the operating mode set.
Patent CA-2028273-A1 (CA)
Title: Submarine compressed gas transport
Inventor: WILLIAMSON VINCENT A
IPC: B63G8/42
Filed: 1990-10-23
Abstract: ABSTRACT In  the  example  employed,  an  unmanned  torpedo shaped concrete tanker, usingservo-mechanism  operated  vanes for  fine  manoevering, is towed by a concretesubmarine  electric  powered  towing  vessel.   Both of these units are suppliedwith  all  electronic  proximity position detectors, control vanes as elevators,flaps  and  ailerons,  with  full  electric  power plus automatic and navigationofficer  controlled  direction  via  sub-sea  powerline to surface control ship.Both  submarine vehicles are also equipped with three laser gyrascopes connectedto  computer  to  supply the data required for pitch, roll and yaw, so that oncein  working  position,  the  tankers stay permanently at working depth, with thevanes  in  themselves  or  lifetime service.  Their servo-mechanism or "limpets"have  removable  connections to vane control arms and to permanent hull electricpower  and  pulse  regulator  plugs, and can be removed and replaced by existingdeep  sea  service  units.    Electric  power  and  pulse control signals are byserviceable  sub-sea power lines to the towing vessel.  Sub-sea concrete gravityplatforms  are  used  as  gas  pressure activated filling and discharge stationsinto  automated  openings  in the tanker keelsons.  They are anchored to the seabottom by chain and maintain vertical stability by permanent buoyancy.
Patent CA-2029081-A1 (CA)
Inventor: KRUEGER DAVID J
IPC: H01H85/055
Filed: 1990-10-31
Abstract: A fuse comprises a housing filled with arc-quenching material, terminals at the opposite ends of said housing, and a fuse element assembly in the housing connected between the terminals.  The fuse element assembly has at least one short circuit blowing section and a center-melting slow blowing section, both disposed within an unpartitioned space in the housing, so that the entire body of arc-quenching material affects the short circuit blowing section of the fuse.  The slow blowing fuse section has a surrounding layer of thermoplastic material which prevents the oxidation thereof and becomes plastic at the melting temperature of the time delay element.  During the fuse element melting attendant to blowout, plastic deformation allows necessary geometric change in fuse element shape and facilitates collapse of the slow blowing fuse section.
Patent CA-2029174-A1 (CA)
IPC: C07C69/00
Filed: 1990-11-01
Abstract: The lubricant oil composition according to the present invention comprises a glycol ether carbonate represented by the general formula [I] R1-O &lparstr& R3-O &rparstr& @CO &lparstr& OR4 &rparstr& @OR2 [I) wherein R1 and R2 are each independently a member selected from the group consisting of an aliphatic group, an alicyclic group, an aromatic group and an aromatic-substituted aliphatic group each having not greater than 20 carbon atoms, R3 and R4 are each independently an ethylene group or an isopropylene group, and  m and n are each independently an integer of 2 to 100. The lubricant oil composition according to this invention can be widely used for industrial gear oil, automotive engine oil, automotive gear oil, lubricant oil for refrigerators, lubricant oil for fibers and rolling lubricant oil. Furthermore, the lubricant oil composition of the invention can be used for refrigerators using, as a refrigerant, ozone layer-nondestructive Freon such as Freon R-134a. Still furthermore, of the lubricant oil compositions of the invention, there can be used, as refrigerator lubricant oil, a lubricant oil composition containing ozone layer- nondestructive Freon such as Freon R-134a in addition to a glycol ether carbonate represented by the above-described general formula [I].
Patent CA-2032361-A1 (CA)
Title: Complex compound of rhodium containing sulfonated triphenylphosphane
Inventor: KONKOL WERNER
IPC: B01J31/24
Filed: 1990-12-14
Abstract: Frankfurt, 21.12.1989 PAT/rcht-sei   Hoe89/Y016 Hoechst Aktiengesellschaft, Frankfurt am Main 80 Abstract The invention relates to the chemical compound bis{(µ-hydroxo)bis[tris(sodium   m-sulfonatophenyl)phosphans]-rhodium(I) dodecahydrate, processes for its preparation and its use.
Patent CA-2032737-A1 (CA)
Title: A process for the production of open-cell, cold-formable rigid polyurethane foams and their use for the production of molded articles
Inventor: KONIG EBERHARD
IPC: C08G18/76
Filed: 1990-12-19
Abstract: Open-celled, cold-formable polyurethane foams are made by reacting a specific crude MDI with a polyol component which includes hydroxyl polyethers having an OH number of from about 28 to about 600, a difunctional phthalic acid hydroxyl polyester having an OH number of from about 150 to about 440, glycerol, a blowing agent (water is preferred), a tertiary amine catalyst and optionally a silicone. foam stabilizer. These foams generally have a density of from about 23 to about 30 kg/m3 and may be molded into articles having intricate shapes (e.g., roofs for automobiles) using known-cold-forming techniques.
Patent CA-2040435-A1 (CA)
Inventor: BAMBACIGNO RALPH
IPC: E04H7/16
Filed: 1990-06-22
Abstract: A storage vault (2, 182) includes an inner tank (4,4',152,180) entombed within a concrete outer tank (8) by first erecting a pair of sidewall forms (51) on a base plate (44) to create an open-top enclosure (54).  The inner tank (180) can include a plastic tank (152) enclosed within an external framework (154), the combination (150) housed within a steel tank (174).  A layer of concrete (56) is poured onto the base plate, the inner tank is lowered onto the layer of concrete, and concrete is poured into the enclosure to entomb the inner tank while the bottom layer of concrete is still wet. Reinforced hold-down bars (86) extend over the top of the enclosure and have downwardly extending hold-down tubes (92) which engage the top of the inner tank and keep the inner tank positioned horizontally and vertically.  The hold-down bars are fastened to the base plate to keep the inner tank properly positioned.  After the concrete has set sufficiently, the hold-down bars and tubes are removed and the holes created by the hold-down tubes are filled with concrete.  After curing, the wall forms and base plate are removed from the vault created within the form assembly.
Patent CA-2040779-A1 (CA)
Inventor: STROLLE CHRISTOPHER H
IPC: H04N9/83
Filed: 1991-04-18
Abstract: An improved video signal recording system for recording a full bandwidth video signal on a limited bandwidth medium is disclosed.  The recording system includes an encoder, coupled to an input terminal, for adaptively processing a composite video signal  in  response  to a motion  representative  signal,  and producing two signals; a luminance signal, having attenuated high frequencies subsampled so as to be folded into a spectral hole in the low frequencies,  and being bandwidth limited to the limited bandwidth of the recording medium, and a combined signal including a chrominance and a motion component.  Luminance signal recording circuitry records the folded luminance signal on the medium and chrominance signal recording circuitry records the combined chrominance and motion signal on the medium.       A n improved video signal playback system for reproducing such a prerecorded video signal is also disclosed.  They playback system consists of a luminance signal playback circuit for retrieving the  prerecorded  luminance  signal  from  the  medium,  and  a chrominance  signal  playback  circuit  for  retrieving  the prerecorded combined chrominance and motion signal  from the medium.  A decoder extracts the motion signal and the chrominance signal from the combined chrominance and motion signal and an unfolding circuit extracts the luminance high frequencies form the  prerecorded  folded  luminance  signal  and  adaptively regenerates the full bandwidth luminance signal in response to the motion signal.  This regenerated full bandwidth luminance signal is combined with the chrominance signal to reproduce the originally recorded composite video signal.  A recording medium previously recorded by such a recording system is capable of being  played  back  on  a  standard  playback  system  without objectionably artifacts in the reproduced image.
Patent CA-2041129-A1 (CA)
Title: Ab diblock copolymers as toner particle dispersants for electrostatic liquid developers
Inventor: HOULE WILLIAM A
IPC: G03G9/12
Filed: 1991-04-24
Abstract: TITLE AB DIBLOCK COPOLYMERS AS TONER PARTICLE DISPERSANTS FOR ELECTROSTATIC LIQUID DEVELOPERS            ABSTRACT OF THE INVENTION     Electrostatic liquid developer consisting essentially of (A)  a nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount, (B)  thermoplastic resin particles having an average by area particle size of less than 10 µm, and coated with (C), (C)  an AB diblock copolymer toner particle dispersant as defined, and (D)  a nonpolar liquid soluble ionic or zwitterionic compound.  Optionally a colorant and charge adjuvant are present.  The process of making the electrostatic liquid developer is described.  The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
Patent CA-2043462-A1 (CA)
Inventor: HENNECKEN BRUNO
IPC: D03D15/02
Filed: 1991-05-29
Abstract: A press pad for high-pressure multi-story presses for the production of high-pressure laminates, including a textile fabric, a yarn comprising aromatic polyamide and metal filaments disposed in said textile fabric in a proportion of between 0 and 70 weight percent with respect to the total weight of the press pad.
Patent CA-2043835-A1 (CA)
Title: Molded articles obtained from norbornene formulations with long pot lives
Inventor: JANDA DENNIS
IPC: C08G61/00
Filed: 1991-06-04
Abstract: MOLDED ARTICLES OBTAINED FROM NORBORNENE     FORMULATIONS WITH LONG POT LIVES                 ABSTRACT OF THE DISCLOSURE Large molded articles are provided which weigh in excess of 50 lbs. and are comprised of bulk polymerized monomers such as dicyclopentadiene.     Articles in excess of 500 lbs. are produced with smooth outer surfaces with substantially no voids through the use of a reactive formulation with a low level of dissolved gas.  Components of the reaction formulation with low dissolved gas levels are also provided.
Patent CA-2044010-A1 (CA)
Title: Capped polyphenylene ethers
Inventor: KOWALCZIK UDO
IPC: C08L25/10
Filed: 1991-06-07
Abstract: Abstract of the Disclosure A capped polyphenylene ether prepared from a poly-phenylene ether containing units of the general formula   or from a mixture of such ethers, wherein Q1 and Q2 are, for example, alkyl radicals having 1 to 10 carbon atoms and Q3 and Q4 are the same radicals as Q1 and Q2 or are hydrogen atoms, by reacting 100 parts by weight of the ether at a temperature of 230 to 330°C with  0.5 to 10 parts by weight of a malonic acid deri-vative of the formula   in which R1 and R2 are aromatic or aliphatic radicals having 1 to 25 carbon atoms or hydrogen and A is, for example, oxygen.  The capped ethers, which are useful as components of moulding composi-tions possess an improved oxidative and thermal stability.  The process of capping is simple to carry out and uses capping agents which are neither aggressive nor corrosive.
Patent CA-2046857-A1 (CA)
Title: Morpholinyl derivatives of doxorubicin and process for their preparation
Inventor: BARGIOTTI ALBERTO
IPC: C07C43/174
Filed: 1990-12-18
Abstract: Morpholinyl derivatives of doxorubicin having formula (A), in which X  represents a linear or branched C2-C6 alkyl group or a benzyl group -CH2C6H5 and which have (S) or (R) configuration at carbon atom C-2" of the morpholino ring, are anti-tumor agents.
Patent CA-2047607-A1 (CA)
Title: Clamping apparatus for molding machine
Inventor: HIRATA HISAKAZU
IPC: B29C45/17
Filed: 1991-07-23
Abstract: A clamping apparatus of molding machine including a base; a fixed board disposed on the base; a movable board movable relative to the fixed board;  a plurality of mold clamping cylinders disposed in predetermined positions of the fixed board, the mold clamping cylinders each having a mold clamping piston with a tie bar reception hole and a tie bar connection device disposed on the mold clamping piston;  a plurality of tie bars with a thread at their one end, the tie bars being disposed in correspondence with the mold clamping cylinders  on  the  movable  board;  a  plurality  of  mold opening/closing cylinders for moving the movable board; and a differential circuit connected between a front oil chamber and a rear oil chamber of each of the plurality of mold clamping cylinder.
Patent CA-2048307-A1 (CA)
Inventor: GUNTHER ROLF
IPC: A61F2/01
Filed: 1991-08-01
Abstract: A method of filtering blood in a blood vessel of a patient wherein a catheter is initially introduced into the blood vessel and then advanced to a desired location within the blood vessel.  Subsequently, a portion of a positioning means having a filter distally attached thereto is guided through the catheter.  The filter is then positioned at a location beyond the distal end of the catheter within the blood vessel with the positioning means.  The positioning means is then locked to the catheter.  The catheter is then anchored to an object located outside of the blood vessel.  Thereafter, an amount of blood is filtered within the blood vessel with the filter.  The filter can be readily repositioned by unlocking the positioning means from the catheter, repositioning the filter within the blood vessel with the positioning means and then relocking the positioning means to the catheter.
Patent CA-2050093-A1 (CA)
Title: Circuitry for conditioning analog signals and converting to digital form
Inventor: CALKINS ROBERT A
IPC: H03M1/06
Filed: 1991-08-28
Abstract: CIRCUITRY FOR CONDITIONING ANALOG SIGNALS AND CONVERTING TO DIGITAL FORM     Abstract of Disclosure A circuit for converting input analog signals to output digital signals including an analog-to-digital converter having an analog input, an offset input and a digital output that represents the value of a signal at the analog input offset by an amount related to the value of the signal at the offset input, signal conditioning circuitry for receiving the input analog signal and providing it to the analog input via one of a plurality of different paths or under one of a plurality of different conditions, the different paths or different conditions providing different offsets to the input analog signal, and an offset correction memory storing offset correction characteristics for respective paths or conditions and being connected to provide an offset signal based on the characteristic for a path or condition to the offset input.
Patent CA-2053691-A1 (CA)
Title: Lubricant compositions for autotraction
Inventor: FISICARO GIUSEPPE
IPC: C10N30/14
Filed: 1991-10-18
Abstract: A lubricant composition comprises: a) a mineral base oil; b) a synthetic base oil; c) a dialkyl carbonate; d) conventional additives; and e) viscosity index and pour point improvers.      Component c) is the product of transesterification of a dialkyl carbonate with an alcoholic mixture consisting of at least 98% by weight of branched alcohols having the general formula (see formula I) where m is an integer and n is zero or a whole number, with the condition that the total number of carbon atoms in the molecule (I) is between 10 and 18.
Patent CA-2054588-A1 (CA)
Inventor: WELLERSHAUS ULF
IPC: A61F2/66
Filed: 1991-10-31
Abstract: A prosthetic foot includes a prosthesis body having a toe region disposed in a front part of the prosthetic foot, and a one-piece insert which is provided in the prosthesis body and which absorbs and transmits stresses imposed on the prosthesis body.  The insert enables at least a plantar and dorsal deflection as well as axial compression  of  the  prosthesis  body,  and  has  an approximately  S-shaped  design  in  the  longitudinal section of the prosthetic foot.  The insert includes a top horizontal section which forms a top edge of the prosthetic foot, and a bottom horizontal section which is of an extended construction compared with the top section and which has a free end which extends into the toe region of the prosthesis body,  so that a high elasticity and a high energy storage capacity of the front part of the prosthetic foot are achieved.  A front inclined section extends at an obtuse angle from the top section to form a rigid angular element.   A central section functions as a leaf spring and has a front end which is connected to a lower end of the angular element and has a rear end.  An approximately semi-circular rear connecting section is connected to the bottom section and to the rear end of the central section.
Patent CA-2054625-A1 (CA)
Title: Blends of polyvinyl alcohol and polyurethane water dispersions for increased humidity resistance of water soluble white sidewall paints
Inventor: PATITSAS GEORGE P
IPC: C08J7/046
Filed: 1991-10-31
Abstract: ABSTRACT BLENDS OF POLYVINYL ALCOHOL AND POLYURETHANE WATER DISPERSIONS FOR INCREASED HUMDIITY RESISTANCE OF WATER SOLUBLE WHITE SIDEWALL PAINTS           A rubber laminate comprising a rubber sub-strate having coated thereon a blend of a water disper-sible insoluble polyurethane and a water soluble poly-vinyl alcohol.   The combination of water soluble and water insoluble polymers upon drying result in a film that  is  humidity  resistant,  and  has  good  abrasion resistance but can be removed by high-pressure washing or scrubbing.
Patent CA-2057498-A1 (CA)
Title: Overhead cable transport installation having two successive sections
Inventor: CATHIARD JEAN-PIERRE
IPC: B61B12/00
Filed: 1991-12-17
Abstract: ABSTRACT            The hauling-carrier cable of a gondola lift or chair lift is subdivided in two endless cable loops operating together. These cable loops are linked by a technical relay including two bull wheels or a bull wheel with two grooves, one for each cable loop. Transfer rails located in the technical relay permit the passage of the cabins from one cable loop to the other. The cabins uncoupled from the cable run on the transfer rail at the same velocity as the cable. The two bull wheels are mechanically coupled to transfer the driving power from one cable loop to the other.
Patent CA-2058695-A1 (CA)
Inventor: SUGIMOTO MAKOTO
IPC: C04B35/583
Filed: 1992-01-02
Abstract: A sintered ceramic body for a spark plug insulator has nitride or oxinite-based ceramic powder with AlN or AlON as a main component. The insulator contains magnesium (Mg), an amount of which ranges from 0.01 wt% to 5.0 wt% when the amount the magnesium (Mg) is calculated by reducing the magnesium (Mg) to its oxidized compound (MgO). The insulator further contains a sintering additive up to 10 wt% selected from the group consisting of alkali-based earth metals and rare-earth metals in which the weight percentage of the sintering additive is calculated by reducing the sintering additive to its oxidized compound.
Patent CA-2059364-A1 (CA)
Title: Waveguide transition for flat plate antenna
Inventor: KOHLS ERIC C
IPC: H01Q21/06
Filed: 1992-01-15
Abstract: ABSTRACT OF THE DISCLOSURE    In a flat plate antenna, insertion loss is reduced significantly by providing an extensive waveguide struc-ture at the back of the ground plane of the antenna. Depending on antenna size, the waveguide may feed the antenna at one or a plurality of points.  According to a preferred embodiment, the transition from waveguide to stripline is made via a coaxial connection,  with a quarter-wave transformation, including mode suppression walls to direct the energy more efficiently.  Alterna-tively, a direct waveguide to stripline transition may be provided.  The technique has wide applicability to a number of antenna designs, including single- and dual-polarization  structures,  and  linear  and  circular polarization operation.
Patent CA-2059593-A1 (CA)
Title: Drying temperature independent polytetrafluoroethylene
Inventor: MELLISH WALTER G
IPC: B29C48/09
Filed: 1992-01-17
Abstract: ABSTRACT      DRYING TEMPERATURE INDEPENDENT POLYTETRAFLUOROETHYLENE     The present invention is directed to a product and method of incrementally adding comonomers to co-polytetrafluoroethylene (PTFE) by an improved process, resulting in a PTFE product independent and/or much less dependent upon drying temperatures.  The improved PTFE exhibits increased green strength at substantially constant extrusion pressures and an extrusion pressure that is substantially independent of drying temperatures of the wet PTFE.
Patent CA-2060588-A1 (CA)
Inventor: COLQUHOUN HOWARD M
IPC: B01D69/08
Filed: 1992-02-04
Abstract: ABSTRACT          MEMBRANES            A process for the preparation of a hollow fibre membrane comprising an at least partially crystalline aromatic ether ketone polymer which process comprises the steps of A.     preparing a hollow fibre membrane from a solution of an at least partially crystalline aromatic ether ketone polymer in a strong acid by contacting the solution with a non-solvent for the polymer; and B.     drawing the fibre prepared in Step A to increase the length thereof by 5-50%.
Patent CA-2061174-A1 (CA)
Title: Reaction products of alkoxylates and vinyl monomers, their preparation and their use as demulsifiers for crude oil emulsions
Inventor: KONRAD GERD
IPC: C10G33/04
Filed: 1992-02-13
Abstract: O.Z. 0050/42219 Abstract  of  the  Disclosure:    Reaction  products  are prepared from predominantly hydrophilic vinyl monomers of the general formula I                                   I   and predominantly hydrophobic alkoxylates of the general formula II               R8-O-[R9-O]x-H                 II and are used as demulsifiers for crude oil emulsions.