Patents by Inventor Christopher Ecob

Christopher Ecob 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).

  • Composition and method for inoculating low sulphur grey iron
    Patent number: 6177045
    Abstract: A composition for inoculating grey iron, particularly low sulphur grey iron, comprises by weight: rare earth 1.0-4.0%, preferably 1.5-2.5%; strontium 0.5-1.5%, preferably 0.7-1.0%; calcium 1.5% maximum, preferably 0.5% maximum; aluminum 2.0% maximum, preferably 0.5% maximum; silicon 40.0-80.0%, preferably 70.0-75.0%; iron balance. The composition is most preferably free of calcium and aluminum. The rare earth may be cerium, mischmetall or a mixture of cerium and other rare earths. The composition may be a mixture of ferrosilicon and the other constituents, a ferrosilicon alloy containing the other constituents or a rare earth and a silicon-bearing inoculant containing strontium.
    Type: Grant
    Filed: August 29, 1998
    Date of Patent: January 23, 2001
    Assignee: Elkem ASA
    Inventors: Christopher Ecob, Douglas White, David Butler