Patents by Inventor Jonathan Phillip Clarke

Jonathan Phillip Clarke 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).

  • Apparatus and methods for cooling slot step elimination
    Patent number: RE39398
    Abstract: An airfoil core die includes a tab for forming a continuous and smooth contour and extension of a first trailing edge slot recessed all to a bottom of the airfoil. The contour is formed on each airfoil core at injection and is maintained through to finish casting of the airfoil.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: November 14, 2006
    Assignee: General Electric Company
    Inventors: Michael J. Danowski, Gulcharan S. Brainch, Jonathan Phillip Clarke