Patents by Inventor John W. Leech

John W. Leech 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).

  • Patent number: 4547122
    Abstract: Method of containing fractured turbine engine components, for example rotor and blade fragments within turbine engine casings, comprising diffusing and impeding motion of the fractured blade fragment by encircling the turbine engine with an honeycomb structure; shielding the honeycomb with an outer shell which has a high bending stiffness and which encloses a series of subdivided compartments in juxtaposition with the honeycomb; and absorbing energy of the fractured blade fragments by supporting a series of ceramic blocks within the confined compartments adjacent said honeycomb. A suggested ceramic for use in the blocks is a hot-pressed silicon carbide. The method is distinguished from the prior art in its ability to sustain the subsonic velocities.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: October 15, 1985
    Assignee: Aeronautical Research Associates of Princeton, Inc.
    Inventor: John W. Leech