Patents Represented by Attorney Timothy L. Klima

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  • Propeller
    Patent number: 7144222
    Abstract: A propeller or propeller blade is manufactured using lattice block material to provide a structure which is generally hollow but for a three-dimensional lattice of support spars. The propeller or propeller blade, being predominately hollow, is substantially lighter than a solid cast propeller or propeller blade while retaining the desired strength due to the three-dimensional lattice of support spars.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: December 5, 2006
    Assignee: Rolls-Royce Naval Marine, Inc.
    Inventors: Francesco Lanni, John A. Eckhart