Patents by Inventor Phillip J. Giffard

Phillip J. Giffard 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).

  • Splitter assembly
    Patent number: 4747943
    Abstract: This invention relates to a spiral separator (1) which is used for separating particulate material and which is able, when arranged in a linear array of such separators, to be adjusted in concert with the other separators in the array.Specifically the invention consists in a spiral separator (1) comprising a volute (2); a splitter blade (4) mounted below a discharge section (3) of the volute (2) for selected rotation about a substantially horizontal axis (5) parallel to the direction of flow in the volute (2), splitting being adjusted by the rotation of the splitter blade (2) about the axis (5).
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: May 31, 1988
    Assignee: Mineral Deposits Limited
    Inventor: Phillip J. Giffard