Patents by Inventor Kenneth M. Lieland

Kenneth M. Lieland 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).

  • Thermal barrier coated squealer tip cavity
    Patent number: 6224337
    Abstract: A turbine blade squealer tip includes an airfoil shaped tip cap having a squealer tip wall extending radially outwardly from and around the perimeter of the airfoil shaped tip cap to define a radially outwardly open tip cavity. The tip wall has an inboard side facing the interior of the cavity and an outboard side facing away from the cavity and the tip cap has an outer tip side on a bottom of the cavity. Thermal barrier coatings are disposed on the inboard and outboard sides of the squealer tip wall and on the outer tip side of the tip cap. One embodiment provides the tip cap with cooling holes disposed therethrough to flow cooling air into the cavity.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: May 1, 2001
    Assignee: General Electric Company
    Inventors: Kenneth M. Lieland, Robert W. Harris