Patents by Inventor David Frame Steele

David Frame Steele has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electrochemical oxidation of matter
    Publication number: 20040050716
    Abstract: In apparatus for decomposing organic waste by oxidation using electrochemically regenerated Ag++, provision is made for preventing unwanted carryover of organic material into recovery streams and into any solid waste produced by the apparatus. Gases formed in the processing are also treated to prevent or minimise any carryover of toxic components in gaseous effluent from the apparatus.
    Type: Application
    Filed: July 30, 2003
    Publication date: March 18, 2004
    Inventors: Christopher Peter Jones, Dominic John Kieran, Linda Jane McCausland, Patrick Alan Fletcher, Patrick Wakefield Nevins, David Frame Steele, Andrew Derek Turner, Stuart Anton Legg
  • Method of oxidation
    Patent number: 5952542
    Abstract: Electrochemically regenerated RuO.sub.4 (or corresponding oxides of Os, Ir, Rh) is used in the decomposition of matter, especially matter containing organic material. The method has particular advantage in dealing with compounds containing chlorine and, in a development, provides for the removal of heteroatoms N, Cl P, As, S, avoiding contamination with unoxidised organics and/or Ru (or Os, Ir, Rh as the case may be).
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: September 14, 1999
    Assignee: AEA Technology
    Inventor: David Frame Steele
  • Electrochemical oxidation of matter
    Patent number: 5855763
    Abstract: Decomposition of waste and particularly organic waste matter is carried out in an electrochemical cell (11) in which the electrolyte comprises nitric acid containing silver ions as an electrochemically regenerable primary oxidizing species. A separation plant (34) for continuously or periodically withdrawing anolyte is operated to remove or reduce contamination of the anolyte with anions of or containing phosphorus, sulphur, nitrogen or halogens.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: January 5, 1999
    Assignee: AEA Technology plc
    Inventors: Iain Conlin, Nigel Desmond Evan Warren, David Frame Steele
  • Disposal of organic materials encased in metal
    Patent number: 5810995
    Abstract: The casing metal of, for example, a munition containing organic materials is removed or at least perforated by anodic dissolution in a chamber (16) fabricated to contain the explosion should the munition detonate. The contents are then exposed to reaction with anolyte from a plant (17), the anolyte comprising nitric acid and electrochemically regenerable silver II ions.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: September 22, 1998
    Assignee: AEA Technology plc
    Inventors: Richard James Soilleux, David Frame Steele, Nigel Desmond Evan Warren