Patents by Inventor Simon Gerard Hardin

Simon Gerard Hardin 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).

  • Patent number: 6773516
    Abstract: An aqueous acidic solution for forming a rare earth element containing conversion coating on the surface of a metal, said solution being chromate-free and including effective quantities of at least one rare earth element (as herein defined) containing species, an oxidant and at least one accelerator, comprising a metal selected from Groups VA and VIA of the Periodic Table.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: August 10, 2004
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Simon Gerard Hardin, Klaus Werner Wittel, Anthony Ewart Hughes, Karen Joy Hammon Nelson
  • Patent number: 6755917
    Abstract: An aqueous acidic solution for forming a conversion coating on the surface of a metallic material, said solution containing at least one rare earth element (as herein defined) containing species, an accelerator additive selected from the group consisting of metals of Group IB, IIB, IVA, VA, VIA and VIII of the Periodic Table, a peroxidic species and at least one acid selected from the group of mineral acids, carboxylic acids, sulphonic acids and phosphonic acids, wherein said solution contains no more than 20 mg/liter each of fluoride and of phosphate, and the solution is essentially free of chromate.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: June 29, 2004
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Simon Gerard Hardin, Klaus Werner Wittel, Anthony Ewart Hughes, Karen Joy Hammon Nelson
  • Publication number: 20020096230
    Abstract: An aqueous acidic solution for forming a conversion coating on the surface of a metallic material, said solution containing at least one rare earth element (as herein defined) containing species, an accelerator additive selected from the group consisting of metals of Group IB, IIB, IVA, VA, VIA and VIII of the Periodic Table, a peroxidic species and at least one acid selected from the group of mineral acids, carboxylic acids, sulphonic acids and phosphonic acids, wherein said solution contains no more than 20 mg/liter each of fluoride and of phosphate, and the solution is essentially free of chromate.
    Type: Application
    Filed: November 20, 2001
    Publication date: July 25, 2002
    Inventors: Simon Gerard Hardin, Klaus Werner Wittel, Anthony Ewart Hughes, Karen Joy Hammon Nelson
  • Publication number: 20020084002
    Abstract: An aqueous acidic solution for forming a rare earth element containing conversion coating on the surface of a metal, said solution being chromate-free and including effective quantities of at least one rare earth element (as herein defined) containing species, an oxidant and at least one accelerator, comprising a metal selected from Groups VA and VIA of the Periodic Table.
    Type: Application
    Filed: November 20, 2001
    Publication date: July 4, 2002
    Inventors: Simon Gerard Hardin, Klaus Werner Wittel, Anthony Ewart Hughes, Karen Joy Hammon Nelson
  • Patent number: 5891376
    Abstract: A controlled permeability film and process for producing same wherein the film includes: a film forming polyolefin polymer; and an inert porous filler in an amount effective to reduce the ratio of the carbon dioxide permeability and water permeability to the oxygen permeability of the film, wherein the filler has a particle size greater than the intrinsic film thickness of the film forming polymer; the controlled permeability film being further modified to reduce the CO.sub.2 /O.sub.2 permeability ratio to approximately 0.5 to 2.0.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: April 6, 1999
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Gregor Bruce Yeo Christie, Victor Christov, Stewart Geoffrey Carson, Penelope Anne Corrigan, Simon Gerard Hardin, Meltem Yesim Gozukara
  • Patent number: 5807630
    Abstract: A controlled permeability film including a film forming polymer and optionally including a dispersing polymer; and an inert porous filler optionally having a surface modifying agent coated thereon, the inert porous filler being present in an amount effective to reduce the ratio of the carbon dioxide permeability to the oxygen permeability of the film, and wherein the filler has a particle size greater than the intrinsic film thickness of the film forming polymer. A composite packaging article and a packaged produce product are also disclosed.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: September 15, 1998
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Gregor Bruce Christie, Terence William Turney, Simon Gerard Hardin, Victor Christov, Ru Yu Wu