Patents by Inventor Robert J. Deverill

Robert J. Deverill 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).

  • Casting of metal articles
    Patent number: 4548256
    Abstract: A casting process is described, the process embodying the use of cores made from material comprising dicalcium silicate. Dicalcium silicate undergoes various phase changes during heating and cooling one of which, the .beta. to .gamma. transformation, is accompanied by a large volume increase. By using this feature casting cores may be produced which disintegrate during cooling of the solidified metal.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: October 22, 1985
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Terence G. J. Glinn, Robert J. Deverill