Patents Assigned to Accentus PLC
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Patent number: 6517013Abstract: A spray generator is provided that generates a spray of droplets by the interaction of opposed jets of fluid. The generator comprises a rigid central member defining a central axis, and fluid passageways formed in a block of material leading to two or more pairs of opposed fluid outlets. The outlets of each pair are separated from each other and arranged to generate opposed jets of fluid along an axis parallel to the central axis. Further, the pairs are equi-angularly spaced about the central axis. The outlets of each pair are maintained in axial alignment with each other and at a predetermined axial spacing from each other by a rigid connection between the central member and the block of material. The two or more pairs of outlets together generate a spray of droplets extending 360 degrees about the central axis.Type: GrantFiled: June 7, 2000Date of Patent: February 11, 2003Assignee: Accentus plcInventor: Michael Mulholland
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Patent number: 6511647Abstract: An oxide LiMnO2 which has a layered monoclinic structure, and in which a minor part of the manganese may be replaced by another transition metal, is made by a two-stage process. Firstly NaXo2 with a layered structure of the &agr;-NaFeO2-type is made by reacting stoichiometric amounts of a sodium salt and a salt of the metal X in solution so as to form a precipitate, drying and heat treating the precipitate at a temperature between 650 and 720° C. in air, and then rapidly cooling the precipitate to room temperature in air. Then the NaXO2 is subjected to ion exchange with a lithium salt in solution in a non-alcoholic solvent at a temperature between about 140 and 210° C. The resulting lithium manganese oxide can be used as the cathode material in a rechargeable lithium cell.Type: GrantFiled: March 2, 2001Date of Patent: January 28, 2003Assignee: Accentus plcInventor: Fazlil Coowar
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Patent number: 6478950Abstract: A sensor module for monitoring chemical properties of oil well fluids comprises at least one electrochemical sensor for a chemcal species, for example to detect pH and chloride ion concentration. A micro-porous barrier separates the electrochemical sensors from the environment of the module, the micro-porous barrier being of a material which is readily wetted by water. Periodic application of a current pulse between the barrier and a counter electrode enables fouling material to be removed from the micron barrier.Type: GrantFiled: October 2, 2000Date of Patent: November 12, 2002Assignee: Accentus PLCInventors: Robert Peat, Paul Antony Harry Fennell
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Publication number: 20020127157Abstract: A reactor for the plasma processing of gaseous media, especially internal combustion engine exhaust, has a bed made of a body of ceramic material and electrodes. At least one electrode terminates within the bed at a distance from earthed supporting structure to avoid or reduce the risk of tracking or arcing between the electrode and the supporting structure.Type: ApplicationFiled: October 31, 2001Publication date: September 12, 2002Applicant: ACCENTUS PLC.Inventors: Stephen Ivor Hall, James Timothy Shawcross, Michael Inman
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Patent number: 6447669Abstract: Lithium ion cells in which the cathode contains a particulate insertion material and a binder are cut open in a dry, inert atmosphere (10). The cell components are treated with a first organic solvent (12) to dissolve the electrolyte, so that this can be reused. They are then treated with a second organic solvent (16) to dissolve the binder, and the particulate material separated (18) from the solution of binder. The insertion material is then reduced (22) so that it does not contain intercalated lithium. The reduction process may be performed electrolytically.Type: GrantFiled: May 30, 2000Date of Patent: September 10, 2002Assignee: Accentus PlcInventor: Michael Jonathan Lain
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Patent number: 6409867Abstract: A method of making a cell component containing a polymer, the polymer consisting primarily of vinylidene fluoride, in which the polymer is mixed with at least one other ingredient, such as an organic plasticiser, and extruded at a temperature above its melting point. The method can be used to make electrolyte layers in which case the polymer would be mixed with at least a salt, and to make layers of composite material for use as anodes or cathodes, in which case the polymer would be mixed with at least a particulate insertion material. No solvents are required.Type: GrantFiled: January 19, 2000Date of Patent: June 25, 2002Assignee: Accentus PLCInventors: Esam Kronfli, Neville John Mattingley
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Patent number: 6387571Abstract: An electrolyte for use in a rechargeable cell whose charging voltage exceeds 3.8 volts includes a redox chemical comprising a substituted aromatic molecule in which &agr; hydrogens are either absent, or are sterically against loss from the ionized form of the molecule. Such as chemical can act as a redox shuttle during overcharge, suppressing damage to the cell and preventing the deposition of metallic lithium during the overcharge of a lithium ion cell, but does not affect normal operation of the cell during either charge or discharge. One such molecule is hexaethyl benzene.Type: GrantFiled: February 8, 2000Date of Patent: May 14, 2002Assignee: Accentus plcInventors: Michael Jonathan Lain, Robin John Neat
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Patent number: 6372188Abstract: A reactor for the processing of gaseous media, including two planar beds of active material separated by a gap. A gaseous medium to be processed is fed inwardly around the periphery of the reactor beds into the gap between the reactor beds and collected from their outer surfaces.Type: GrantFiled: August 21, 2000Date of Patent: April 16, 2002Assignee: Accentus plcInventors: Peter James Andrews, Ka Lok Ng
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Patent number: 6334982Abstract: A corona discharge reactor is for use in processing materials in or carried by a gaseous phase. A plurality of cylindrical individual reactor chambers is provided in an array. The reactor chambers are electrically matched with each other and pulses of electrical energy are supplied under sequential control to each of the individual reactor chambers.Type: GrantFiled: March 14, 2000Date of Patent: January 1, 2002Assignee: Accentus PLCInventors: John Sydney Carlow, Norman Jorgensen, Robert Francis King, Roy McAdams, Fiona Winterbottom
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Patent number: 6331290Abstract: Particles are made from a liquid feedstock (13) containing a pharmaceutical composition, the particles either being solid or being liquid droplets in an aerosol, by supplying the feedstock to an electronic droplet generator (18), and collecting the droplets in a holding chamber (20). Evaporation of the solvent creates particles which may be trapped using a cyclone (22). The generator (18) comprises a feed chamber (28) to which the feedstock is supplied, a dispensing chamber (30) having an inlet port communicating with the feed chamber and having an outlet port (34), and electronic means (36) for repeatedly applying a pressure pulse to the feed chamber and a pressure pulse to the dispensing chamber so that a droplet is ejected. Each droplet is of volume substantially equal to that of the dispensing chamber, so the particles can be substantially monodisperse, and may be of diameter in the range 0.1-20 &mgr;m.Type: GrantFiled: November 22, 1999Date of Patent: December 18, 2001Assignee: Accentus PLCInventor: George Richard Morgan
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Patent number: 6322758Abstract: A reactor for the plasma processing of gaseous media, especially internal combustion engine exhaust, has a bed made of a body of ceramic material and electrodes. At least one electrode terminates within the bed at a distance from earthed supporting structure to avoid or reduce the risk of tracking or arcing between the electrode and the supporting structure.Type: GrantFiled: February 16, 2000Date of Patent: November 27, 2001Assignee: Accentus plcInventors: Stephen Ivor Hall, James Timothy Shawcross, Michael Inman