Patents by Inventor Sam Hettiarachchi

Sam Hettiarachchi 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).

  • Mitigation of stress corrosion cracking of structural materials exposed to a high temperature water
    Patent number: 7264770
    Abstract: A method for mitigating stress corrosion cracking of a component exposed to a high temperature water in a high temperature water system is provided. The method comprises the steps of lowering corrosion potential conditions to a desired low corrosion potential in the high temperature water environment; and introducing a first material comprising zinc into the high temperature water environment, such that the desired low corrosion potential facilitates transport of the first material into cracks in a structure communicative with the high temperature water environment.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: September 4, 2007
    Assignee: General Electric Company
    Inventors: Peter Louis Andresen, Young-Jin Kim, Sam Hettiarachchi, Thomas Pompilio Diaz, Thomas Martin Angeliu, Martin Mathew Morra
  • Mitigation of stress corrosion cracking of structural materials exposed to a high temperature water
    Publication number: 20060243602
    Abstract: A method for mitigating stress corrosion cracking of a component exposed to a high temperature water in a high temperature water system is provided. The method comprises the steps of lowering corrosion potential conditions to a desired low corrosion potential in the high temperature water environment; and introducing a first material comprising zinc into the high temperature water environment, such that the desired low corrosion potential facilitates transport of the first material into cracks in a structure communicative with the high temperature water environment.
    Type: Application
    Filed: May 2, 2005
    Publication date: November 2, 2006
    Inventors: Peter Andresen, Young-Jin Kim, Sam Hettiarachchi, Thomas Diaz, Thomas Angeliu, Martin Morra