Patents by Inventor John D. Shipley

John D. Shipley 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).

  • System for controlling the nozzle throat area of a rocket motor
    Patent number: 3948042
    Abstract: A system for controlling the annular nozzle throat area (and hence the tht) of a solid-propellant rocket by means of a pintle or plug the position of which is caused to vary in response to pressure variations within the combustion chamber of the rocket.
    Type: Grant
    Filed: December 23, 1968
    Date of Patent: April 6, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James D. Beardsley, John D. Shipley