Patents by Inventor Tryfon Constantinou

Tryfon Constantinou 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