Thrust deflector and reverser

Claim 1

A JET PROPULSION POWERPLANT HAVING A TUBULAR CASING MEMBER WITH A PORTION OF SUBSTANTIALLY RECTANGULAR CROSSSECTION THEREIN AND A CENTERBODY MEMBER DISPODED CENTRALLY THEREOF, SAID CASING MEMBER TERMINATING IN SAID NOZZLE DOWNSTREAM OF SAID PORTION, FAN MEANS ON SAID CENTERBODY TO MOVE THRUST AIR LONGITUDINALLY IN A PASSAGE THROUGH SAID CASING MEMBER, THRUST DEFLECTION MEANS COMPRISING, A PAIR OF LOUVERED CASCADES DISPOSED ABOVE THE CENTRAL HORIZONTAL PLANE OF THE POWERPLANT AND A PAIR DISPOSED BELOW SUBSTANTIALLY WITHIN SAID RECTANGULAR CROSS-SECTION, EACH PAIR INCLUDING A FIRST CASCADE PIVOTALLY SUPPORTED FROM SAID CASING MEMBER, ACTUATION MEANS CONNECTED TO SAID FIRST CASCADE TO MOVE IT INTO POSITION CROSS SAID PASSAGE TO INTERSECT SAID THRUST FLUID AND DEFLECT IT TOWARD SAID CASING MEMBER, A SECOND CASCADE SUPPORTED ON SAID CASING AT AN OPENING THROUGH SAID CASING IN SAID RECTANGULAR CROSSSECTION AND UPSTREAM OF THE NOZZLE, SAID SECOND CASCADE FORMING AN ANGLE WITH SAID FIRST CASCADE TO INTERSECT SAID DEFLECTED FLUID FROM THE FIRST CASCADE FOR FURTHER DEFLECTION, SAID FIRST CASCADE BEING PIVOTAL INTO SAID OPENING OUT OF THE THRST AIR.