Patents by Inventor David E. Hess

David E. Hess 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).

  • Method of predicting a ship resistance by designing and implementing a momentum thickness similarity simulator
    Patent number: 11853655
    Abstract: A full-scale resistance prediction for ships. More particularly, the invention is directed to full-scale resistance predictions for ships using model scale resistance tests. This process involves the designing of a momentum thickness similarity simulator for a model, to accurately determine a model resistance and ultimately to predict a ship resistance. The simulator modifies the geometry of the model, and its design is optimized to accurately predict the ship resistance. The simulator may be an external device such as a wire ring (trip wire), sand paper, or a Hama strip, or the simulator may be integrally formed on the body of the model.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: December 26, 2023
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Young T. Shen, Michael J. Hughes, David E. Hess