baber/WOPTO huggingface dataset:
Patent CA-2084093-C (CA)
Title: Composite molecular system for the contra-escalatory treatment of viral infections
Inventor: MACH WALTER
IPC: A61K35/10
Filed: 1991-05-27
Granted: 2002-10-22
Abstract: The invention concerns a composite molecular system for use in restitutive chemotherapy against viral infection,, the sys-tem being obtained as follows: (l) preparing lignin units high in polysaccharides (PLP) by: extraction, in weakly acid or alkaline conditions, from wood or wood-like materials and/or from plant-cell cultures (A) in aqueous media; separating off the insoluble solids; (II) preparing low-molecular-weight lignoid units low in polysaccharides (LPL) by: alkaline-aqueous extraction (p11 7-14) from wood-carbonization products or bio-converted wood-like materials (B);  separating off the alkali-insoluble solids; (lll) pre-paration of a water-soluble mixed polymer [LD(PLP=LPL)] by: reacting the product of step (I), the lignin units high in polysac-charides (PLP), with the products of step (II) the lignoid units low in polysaccharides (LPL), in alkaline aqueous conditions (pH 9.12, isolating the LD fractions of this HD(PLP = LPL) mixed polymer by ultra-filtration, taking the cut between the nominal values of about 15 and 40 kD and discarding the residue; treating the solution with an H+ Cation-exchange agent at pH 3 to 7.0 and processing the acid LD(LPL = PLP) system. This system can be used in particular as a parenterally or locally applied system against viral infections, including retroviruses, in particular those of the HIV type, as well as AIDS viruses,
Patent CA-2087240-C (CA)
Inventor: HANSEN WILLIAM M
IPC: B63B59/02
Filed: 1993-01-13
Granted: 2007-01-30
Abstract: A high performance boat stabilized through the use of foam stabilizing members (12) is provided. The boat has a rigid, planing hull (10) including a transom (14), and a pair of curved sides (16) extending forward from the transom to form a bow. A bottom (18) is joined to the sides forming a chine (20). The foam stabilizing members (12) are mounted on the sides of the hull above the chine (20) and extend from the transom along the length of the boat. The sides of the boat also include an upper (52) and lower (54) Mange extending outwardly from the sides of the boat adjacent to the upper and lower edges of the stabilizing members at the location where the stabilizing members attach to the sides of the hull. The lower Mange (54) helps to ensure that water is not forced in between the sides of the boat and the stabilizing members, thus preventing possible damage to the boat. Additionally, the stabilizing members are attached to the side of the hull without the use of holes extending from the exterior to the interior of the hull, thus preventing water from seeping into the hull.
Patent CA-2090574-C (CA)
Inventor: WILLIAMSON JOSEPH ROBERT
IPC: A61K31/195
Filed: 1993-02-26
Granted: 1999-05-25
Abstract: A method is disclosed for inhibiting nitric oxide formation in a warm blooded mammal which comprises administering to said mammal an effective nitric oxide inhibitory amount of methylguanidine or dimethylguanidine.
Patent CA-2092560-C (CA)
Title: Polyhydroxy fatty acid amides in brightener-containing liquid detergent compositions
Inventor: HONSA SANDRA L
IPC: C11D1/52
Filed: 1991-09-25
Granted: 1998-12-15
Abstract: The present invention provides highly-built, liquid detergent compositions compr ising: one or more conventional anionic, nonionic or cationic detersive surfactants; one or more optical brighteners; one or more polyhydroxy fatty acid amides of general formula (I) wherein R1 is H, a C1-C4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy pro pyl, or mixtures thereof, R2 is a C5-C31 hydrocarbyl group, and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyl groups directly connected to the chain, or an alkoxylated derivative thereof; one or mo re detergent builders; and a liquid carrier; wherein the optical brightener is added to the detergent composition in admixtur e with the polyhydroxy fatty acid amide. The present invention also provides a premix for use in the formulation of liqui d detergent compositions, said premix comprising one or more optical brighteners, one or more polyhydroxy fatty acid a mides and a liquid carrier. The present invention further provides a method for preparing optical brightener-containing liquid detergent comprising wherein said brightener is added to said detergent compositions via the above-described premi x.
Patent CA-2099359-C (CA)
Inventor: EASTMAN ALAN D
IPC: B01J31/40
Filed: 1993-06-28
Granted: 1999-06-15
Abstract: Described is A novel process which utilizes a reversible base as a contact material for removing A portion of a contaminating amount of ASO contained in a mixture of a sulfone component and a hydrogen halide component to produce a treated sulfone-containing mixture.  The treated sulfone-containing mixture can further be processed by contacting it with an adsorbent material.
Patent CA-2100867-C (CA)
Title: Dispositif d'alimentation de coke comportant un amenagement pour le refroidissement par voie seche
Inventor: STEWEN WILHELM
IPC: F27D3/00
Filed: 1991-12-27
Granted: 1998-06-30
Abstract: Le présent brevet vise un alimenteur à coke équipé d'une enceinte (6) pour installation de refroidissement à sec de coke qui est reliée à une colonne de refroidissement réservée (41). Cet alimenteur se compose d'une trémie fixe (1) munie d'une canalisation d'extraction (9), d'une trémie mobile (2), d'un obturateur de colonne de refroidissement pouvant se déplacer à la verticale (8), et enfin d'une enceinte (6) logeant la trémie mobile (2) et l'obturateur de colonne de refroidissement (8) montés sur un bâti commun (22) coulissant sur rails (49). La trémie mobile (2, 200, 201) est équipée d'une cloche de distribution (3,4) et d'un anneau d'étanchéité se déplaçant à la verticale (11); l'obturateur mobile de colonne de refroidissement (8) muni d'un anneau d'étanchéité (55) est incorporé à un dispositif de positionnement (15) et l'enceinte (6, 600, 601) a la forme d'un capot surplombant le sol ou à paroi ajourée (45, 450, 451, 46, 460, 461) assurant une admission d'air auxiliaire limitée.
Patent CA-2108410-C (CA)
Inventor: REICHOW MATT
IPC: H01H15/02
Filed: 1993-10-14
Granted: 2002-05-14
Abstract: An air conditioning disconnect switch utilizes a ramped movable contact arrangement for slidably opening and closing the switch contacts without the requirement of a removable type pull-out handle. A plastic face plate covering the switch terminals allows the use of a metallic case of reduced depth. The slidable contact arrangement eliminates the bumped cover projection otherwise required with the pull-out handle.
Patent CA-2115785-C (CA)
Title: Nonreturn valve, particularly for medical fluid technology applications
Inventor: MYERS JAN WILLEM MARINUS
IPC: A61M39/24
Filed: 1994-02-16
Granted: 2006-06-13
Abstract: A nonreturn valve for use in controlling the flow of medical fluid. The valve has two mating valve shells which carry and communicate with first and second pipe connectors, respectively.      A diaphragm with a protrusion on its periphery is held between the valve shells. Circumferentially disposed retaining formations on each of the valve shells causes pretension to occur in the diaphragm upon assembly of the valve shells. The axial location of the retaining formation on the valve shell which carries the valve seat is such that tension in the diaphragm lightly urges the diaphragm into sealing engagement with the valve seat, whereby a seal exists when there is no significant pressure on either side of the diaphragm.
Patent CA-2120948-C (CA)
Title: An inspection device for detecting surface faults, and an instrument incorporating such a device
Inventor: JONSSON IVAR
IPC: G01N21/954
Filed: 1992-10-12
Granted: 2004-12-07
Abstract: For the purpose of detecting the presence of surface flaws in tubular members, the surface to be inspected is first coated with penetrant and any excessive penetrant then removed.   An inventive device (40) is then moved along the tubular member until that part of the surface (48) thereof to be inspected is reached, whereafter the device is expanded into abutment with this tubular surface. Penetrant that has entered a surface flaw is transferred to the surface of the device, where it can be made visible and studied, subsequent to having constricted the device and removed it from the tubular member. The invention also relates to an instrument which includes the device so as to enable a tubular member to be pre-treated with penetrant and penetrant transferred to the surface of the device.
Patent CA-2121942-C (CA)
Title: Process for the reactivation of nickel-alumina catalysts
Inventor: CLAVENNA LEROY RUSSELL
IPC: C01B3/44
Filed: 1994-04-22
Granted: 2000-11-21
Abstract: A process for the reactivation, or rejuvenation of a nickel-alumina catalyst employed in the production of a gas comprised of an admixture of hydrogen and carbon monoxide, or synthesis gas, by the conversion, in a reactor, or reaction zone, of light hydrocarbons in a fluidized bed of the catalyst at elevated temperature, in the presence of steam and oxygen. Catalyst reactivation is accomplished by with-drawing a portion of the catalyst from the fluidized bed of the reactor and treating the catalyst in an oxidation zone at temperature sufficient to oxidize and convert the nickel component of the catalyst to nickel aluminate and disperse said nickel aluminate within the alumina support, and then recycling the treated catalyst to the reactor, or reaction zone, to reactivate and increase the activity of the catalyst. The catalyst, on reduction in the reactor, or reaction zone, is provided an additional boost in activity by washing, treating or contacting the catalyst from the elevated temperature oxidation zone with an acid sufficient to remove trace impurities without removing any substantial amount of the nickel aluminate, and without forming a residue on the catalyst surface. The normal tendency of the catalyst to agglomerate at reaction conditions is.also reduced by the acid treatment.
Patent CA-2128048-C (CA)
Inventor: CANIVENC EDITH
IPC: C09D151/08
Filed: 1994-07-14
Granted: 2000-05-23
Abstract: Dispersions aqueuses réactives stables de polyorganosiloxanes fonctionnalisés greffés constitués de motifs copolymères greffés dérivés d'au moins un monomère éthyléniquement insaturé susceptible de polymériser par voie radicalaire et d'un polyorganosiloxane fonctionnalisé contenant des motifs semblables ou différents de formule (I), R a Y b X c SiO(4-a-b-c)/2. Dans cette formule, les symboles R représentent un groupe alkyle, alcényle, aryle ou aralkyle; les symboles X représentent un atome d'hydrogène ou une fonction réactive liée à un atome de silicium par une liaison Si-C ou Si-O-C; les symobles Y représentent un reste hydrocarboné éthyléniquement insaturé lié à un atome de silicium du motif de formule (I) par une liaison Si-C et susceptible de réagir par voie radicalaire avec ledit ou lesdits monomère(s) éthyléniquement insaturé(s); a, b et c sont égaux à 0, 1, 2 ou 3; a+b+c = 0, 1, 2 ou 3; le taux de motifs SiO4/2 étant inférieur à 30% en mole; le nombre de motifs de formule (I) dans lesquels l'atome de silicium porte une fonction X et/ou un reste Y est tel que lesdits polyorganosiloxanes contiennent au moins 5 milliéquivalents, de préférence de l0 à 500 milliéquivalents, de fonctions X pour l00 grammes de polyorganosiloxane de formule (I), et au moins 5 milliéquivalents, de préférence de 10 à 500 milliéquivalents, de restes Y pour 100 grammes de polyorganosiloxane de formule (I). Ces dispersions aqueuses de polyorganosiloxanes fonctionnalisés greffés sont utilisable pour la réalisation de compositions silicones durcissables sous l'action de la chaleur, de radiation, de faisceaux d'électrons et/ou à l'aide d'un catalyseur.
Patent CA-2133642-C (CA)
Inventor: MANO YASUHIKO
IPC: G11B5/706
Filed: 1994-03-31
Granted: 1999-07-06
Abstract: Hematite powder is mixed with a substance having a carbon-to-carbon single or double bond, and sintered in an inert gas to form magnetite powder.  The magnetite powder can be provided with a desired electric resistance while retaining the properties characteristic of the magnetite powder by effecting a heating in an oxygenic atmosphere after the formation of the magnetite powder (or during a cooling subsequent to the sintering in the inert gas).
Patent CA-2136175-C (CA)
Inventor: WATT JOHN STANLEY
IPC: G01F1/712
Filed: 1993-05-20
Granted: 2003-07-15
Abstract: A dual energy gamma-ray transmission gauge (10) includes radioisotope sources (11) for emitting gamma-rays (l3) of two different energies. Gauge (10) also includes a gamma-ray detector which produces signals as a response to the detected gamma-rays. fi single energy gamma-ray transmission (17) is disposed upstream of gauge (10) for providing further signals indicative of the respectively detected gamma-rays. These signals are subsequently directed to a processing computer (16) together with signals indicative of the pressure and temperature of the flow obtained from two sensor means (18, 19). The intensities of the gamma-rays are recorded and thereafter a value indicative of the mass flow rates of oil, water and gas can be calculated. The mass flow rates of liquid phases are calculated at substantially all times, however, the phase fractions of oil and water are determined only when a slug is passing gauge (10) in order to maximise the path length of the liquid phase through which the gamma-rays pass.
Patent CA-2138362-C (CA)
Title: Method and apparatus for extending the resolution of a sigma-delta type analog to digital converter
Inventor: MOLNAR RICHARD J
IPC: H03M3/02
Filed: 1994-12-16
Granted: 2000-03-28
Abstract: A sigma-delta technique is used to generate a digital representation of the incoming analog signal amplitude. The integration stage of the converter holds an analog error term relative to the ratio of an incoming analog input signal to a reference voltage. The incoming analog signal is disconnected at the end of the conversion. The error term is monitored through a comparator as charge packets are applied to the input of the integration stage. The number of charge packets needed to have the error term cross zero provides information which can be used to extend the resolution of the analog to digital converter.
Patent CA-2143996-C (CA)
Inventor: OTAGURO HIROYUKI
IPC: H04B10/00
Filed: 1995-03-06
Granted: 2001-05-08
Abstract: A circuit board packaging structure avoids perforating a board with holes, while maintaining the strength of the board, securing a wide degree of freedom in wiring design on the board and permitting great wire accommodatability when packaging the board in an equipment using optical modules. Both surfaces of the board are made conductive through an electric connector.      On the inner surface of the board, a second electric connector of an individual unit oriented package board is connected to this electric connector. On the outer surface of the board, a photoelectric converting device constituting a subscriber-side optical module is connected to this electric connector. An optical connector constituting the subscriber-side optical module is connected to this photoelectric converting device. A subscriber-side optical cable is connected to this optical connector. An optical signal from the subscriber-side optical cable is converted into an electric signal and can be transmitted to the individual unit package board without requiring a hole in the board through which the optical cable passes.
Patent CA-2145568-C (CA)
Inventor: SESHADRI NAMBIRAJAN
IPC: H04B1/707
Filed: 1995-03-27
Granted: 1999-12-28
Abstract: We have invented methods of and devices for introducing unequal error protection into spread spectrum communication systems. In an illustrative method of processing a signal that includes the steps of applying a spread spectrum coding process involving encoding a first segment of the signal with a first channel encoder operating at a first rate to generate a first encoding segment having more significant bits using a first error protection process. The next step involves encoding a second segment of the signal with a second channel encoder operating at a second rate to generate a second encoded segment having less significant bits using a second error protection process. The second rate is different from the first rate and the first error protection process provides a greater amount of error protection than the second error protection process.
Patent CA-2145609-C (CA)
Title: Functionalized polymer as grease additive
Inventor: SCHARF CURTIS R
IPC: C10N10/02
Filed: 1995-03-27
Granted: 2005-05-24
Abstract: A grease of an oil of lubricating viscosity, a polyolefin having grafted acid functionality, a metallic species capable of interacting with the acid functionality of said polyolefin to cause association among the acid groups and a co-thickening agent, has improved rheological properties. The co-thickening agent and the metallic species can together comprise a gelled overbased material, particularly an overbased carboxylate.
Patent CA-2147077-C (CA)
Inventor: HOOPER MICHAEL E
IPC: F16J15/34
Filed: 1995-04-13
Granted: 1998-06-23
Abstract: A mechanical seal for use in a rotary rock bit comprises a leg seal ring positioned within a recessed portion of a leg forming a seal cavity. The leg seal comprises one surface partially engaged by a resilient material and an opposite surface comprising a first sealing surface. The mechanical seal also comprises cone seal ring positioned within a portion of a cone forming the seal cavity. The cone seal comprises one surface positioned within and attached to a recessed portion of the cone and another surface comprising a second sealing surface engaging the first sealing surface. The portion of the leg seal ring engaged by the resilient material engages a back face of the leg which includes a ramp, serving to urge the first sealing surface against the adjacent second sealing surface and create a sealing engagement. The first and second sealing surfaces are made from different hard materials each having a similar hardness of greater than 1000, and each material selected has a Knoop hardness difference of about 400 or less. The first and second sealing surfaces may be formed from materials the same as or different than material forming the leg seal ring and cone seal ring, respectively.
Patent CA-2148341-C (CA)
Inventor: YE SHEN
IPC: H01P3/08
Filed: 1995-05-01
Granted: 1997-02-04
Abstract: Microstrip/stripline transmission lines have a plurality of strips on a substrate where strips are separated by a gap.  This arrangement results in a reduced maximum current density compared to previous transmission lines with the same power handling capability.  The strips can have the same width or different widths.  The gaps can have the same width or different widths.  The transmission lines can be used in filters and resonators and can be made of high temperature superconductive materials.
Patent CA-2151356-C (CA)
Inventor: GATTI GIULIANO
IPC: H03F1/32
Filed: 1995-06-08
Granted: 2005-01-25
Abstract: The invention concerns a pre-distorting linearization circuit, comprising a splitter circuit with an input forming the input of the linearization circuit and first and second outputs feeding first and second parallel stages respectively, of which at least one has a defined distortion characteristic, and a combining circuit receiving the signals provided by the first and second stages at first and second inputs respectively and having a recombination output According to the invention, the first and second stages have first and second transistors respectively having different dimensions, which confer different non-linearity characteristics thereon, such that for the same voltage on the input of the linearization circuit, the first stage exhibits a higher degree of non-linearity than the second stage
Patent CA-2151532-C (CA)
Inventor: HORST GARY E
IPC: H02P1/46
Filed: 1995-06-12
Granted: 1998-12-22
Abstract: A dynamo-electric machine such as a switched reluctance motor (10) having an auxiliary starting capability is disclosed.  A stator (14) has a central bore (16) and a plurality of inwardly salient poles (18A-18D) extending into the bore.  A rotor (22) is mounted on a shaft (24) for rotation relative to the stator.          The rotor has a plurality of outwardly salient poles (26A, 26B) extending into the bore.  Stator windings (20, 21) are bifilar windings which produce an electro-magnetic field when a phase is energized.  The bifilar windings return energy to the voltage source when the phase is de-energized.  An auxiliary winding (28) is also installed on the stator.  The auxiliary winding is energized, when the machine is off, to produce a magnetic field which causes rotation of the rotor to a preferred aligned position relative to the stator poles.  This facilitates subsequent starting of the machine.  An electrical circuit (30) energizes the auxiliary winding, when the machine is off; and then energizes the stator windings when the machine is started.  The circuit de-energizes the auxiliary winding when the stator windings are energized.  The auxiliary windings are also effective when used with motors having a stepped air gap (G) between the stator poles and rotor poles, or when the stator has a shifted pole configuration.
Patent CA-2156434-C (CA)
Title: Dispersants
Inventor: THETFORD DEAN
IPC: C09K23/36
Filed: 1994-02-25
Granted: 2005-07-05
Abstract: A dispersant comprising a polyethyleneimine residue carrying polyester chains derived from a caprolactone and at least one other specified lactone or hydroxycarboxylic acid.
Patent CA-2157309-C (CA)
Title: Method and apparatus for encoder control
Inventor: BOTSFORD NELSON III
IPC: H04N21/434
Filed: 1995-08-31
Granted: 1999-10-26
Abstract: A video encoder control system and method are disclosed for controlling a video encoder using a processor having a multiple field delay circuit for delaying input video data by a predetermined number of frames, and a statistics generator for generating statistics from the video data to control the encoder. The statistics generator calculates a sum of absolute values of field differences between pixels, with the sum used for detecting a redundant field, for generating a film flag, and for controlling the encoder using the film flag. The statistics generator calculates averages of blocks of pixels, and a fade detector uses the averages for detecting fades between successive frames to generate a fade flag to control the encoding. The rate controller responds to the statistics to change the resolution of the encoding of successive frames. The processor outputs the film flags, scene change flags, and fade flags to the rate controller to control the encoding of the delayed video data. A method is disclosed for controlling the video encoder including the steps of delaying the input video data, generating frame statistics, and controlling the encoder using the statistics.
Patent CA-2158891-C (CA)
Inventor: FIX WOLFRAM MICHAEL
IPC: A01B39/08
Filed: 1995-09-22
Granted: 2001-07-24
Abstract: A cultivator for towing by a tractor or similar vehicle for use in cultivating rows of plants has rotary tines  including at  least  one  substantially vertically oriented set of rotary tines, and a shield for each row of plants. The vertically oriented set of tines are arranged to cultivate the soil on each side of a row of plants and throw some soil towards the shield. A drive is provided for the rotary tines. The tines, drive and shield are supported by a support structure on the tractor or like vehicle.