Patents by Inventor Charles J. Shea

Charles J. Shea 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).

  • Solid rocket motor with dual interrupted thrust
    Patent number: 4972673
    Abstract: The invention disclosed is a solid propellant rocket motor, capable of providing two separate propulsive impulses to a missile. The rocket motor is connected at one end to the missile body, the other end including an exhaust nozzle. The rocket motor comprises two stages connected by an interstage bulkhead. The bulkhead includes a port opening which is closed by a frangible cover which prevents the second stage from igniting during burning of the first stage, but breaks up into harmless fragments during firing of the second stage.
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: November 27, 1990
    Assignee: Her Majesty the Queen as represented by the Minister of National Defence of Her Majesty's Canadian Government
    Inventors: Joseph L. C. Carrier, Tryfon Constantinou, Charles J. Shea, Donald L. Smith
  • Compact molded bulkhead for a tube-cluster rocket launcher
    Patent number: 4635527
    Abstract: The invention disclosed is a novel bulkhead structure for use with rocket launchers which employ a plurality of cylindrical launch tubes. The bulkhead includes openings which are aligned with corresponding launch tube openings. The bulkhead openings are counterbored to receive the launch tube ends and to provide a smooth transition between the launch tubes and the bulkhead to prevent rocket-to-bulkhead interference when the rockets are launched.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: January 13, 1987
    Assignee: Minister of National Defence of Her Majesty's Canadian Government
    Inventors: Christian J. L. Carrier, Charles J. Shea
  • Integrated weatherseal/igniter for solid rocket motor
    Patent number: 4573316
    Abstract: A low cost easily installed and reliable weather seal for the nozzle throat of a solid propellant rocket motor which uses an aft end ignition system. The igniter cartridge, known per se, which is located in the throat of the rocket motor is provided with an elastomeric O-ring in the base of the cartridge thus sealing the gap between it and the inside surface of the exit cone of the nozzle. This structure not only provides an effective weatherseal but also provides a convenient means of positively retaining the igniter cartridge in place.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: March 4, 1986
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence of Her Majesty's Canadian Government
    Inventors: Christian J. L. Carrier, Charles J. Shea