Patents by Inventor Joseph J. McDermott, deceased

Joseph J. McDermott, deceased 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).

  • Boattail emergence by ejecting nozzle exit cone
    Patent number: 4348957
    Abstract: A device for altering the after body shape of a missile configuration so as o reduce the ballistic flight drag coefficient after booster burnout and including linear shaped charge cutting device for severing a portion of a nozzle exit cone just aft of a fixed boattail configuration on the outer surface of the missile to allow boundary layer air flow to flow smoothly over the boattail and thereby reduce the base drag on the missile during the coast phase thereof.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: September 14, 1982
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: James W. White, Joseph J. McDermott, deceased