Patents by Inventor Ronald B. Mitchell

Ronald B. Mitchell 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).

  • Nozzle assembly
    Patent number: 4666084
    Abstract: A nozzle assembly capable of controlling the hot exhaust gases which flow om the burning solid rocket propellant.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: May 19, 1987
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Ronald B. Mitchell, Frederick W. Du Vall
  • Time delay device for deployable rocket nozzle skirts
    Patent number: 4272956
    Abstract: A rocket motor expansion cone extension skirt of the combustion gas deployable type is purposely delayed in its deployment by an erodable barrier in the motor's expansion cone upstream of the extension and which diverts combustion gas away from the skirt to prevent its deployment. The barrier is eroded away by the gases after a brief predetermined period of time long enough to permit the rocket motor to clear other structures in a situation such as may occur during vehicle stage separation, after which time deployment of the skirt occurs.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: June 16, 1981
    Assignee: Thiokol Corporation
    Inventors: Garland C. Lamere, Frank S. Inman, Ronald B. Mitchell