Thrust vector control

Claim 1

IN COMBINATION WITH A REACTION MOTOR HAVING A COMBUSTION CHAMBER AND AN EXHAUST NOZZLE, A THRUST VECTOR CONTROL SYSTEM COMPRISING, (A) AN INJECTANT GAS DUCT COMMUNICATING WITH SAID COMBUSTION CHAMBER AND BEING PROVIDED WITH AT LEAST TWO BRANCH DUCTS POSITIONED TO DISCHARGE COMBUSTION GASES INTO SAID NOZZLE ANGULARLY WITH RESPECT TO NORMAL FLOW OF EXHAUST GASES THROUGH SAID NOZZLE, (B) VALVE MEANS CARRIED IN EACH OF SAID BRANCH DUCTS FOR VARYING COMBUSTION GAS FLOW THERETHROUGH, (C) A CONDUIT COMMUNICATING WITH SAID INJECTANT GAS DUCT UPSTREAM OF SAID BRANCH DUCTS FOR DIVERTING A PORTION OF THE COMBUSTION GASES FROM SAID INJECTANT DUCT, (D) SAID CONDUIT BEING FORKED TO PROVIDE A PAIR OF BRANCH LINES, (E) A COOLING MEANS AND A CLEANING MEANS DISPOSED IN SAID CONDUIT UPSTREAM OF SAID BRANCH LINES WHEREBY THE COMBUSTION GASES DIVERTED TO SAID CONDUIT ARE COOLED AND CLEANED BEFORE DELIVERY TO SAID BRANCH LINES, (F) MEANS SELECTIVELY VARYING THE PRESSURE OF THE COMBUSTION GASES IN EACH OF SAID BRANCH LINES, AND (G) PRESSURE RESPONSIVE MEANS COMMUNICATING WITH SAID BRANCH LINES AND CONNECTED WITH SAID VALVE MEANS AND OPERABLE TO VARY THE POSITION OF SAID VALVE MEANS IN RESPONSE TO PRESSURE DIFFERENTIAL CHANGES PRODUCED IN SAID BRANCH LINES TO THEREBY VARY COMBUSTION GAS FLOW THROUGH SAID BRANCH DUCTS.