Dud jettisoning device

Claim 1

A DEVICE FOR JETTISONING A DUD MISSILE FROM A LAUNCHING ARM OF A MISSILE LAUNCHER, COMPRISING AN ELONGATED UNITARY TUBULAR MEMBER HAVING A LARGE AREA PRESSURE CHAMBER AND A SMALL AREA PRESSURE CHAMBER THEREIN, A LARGE AREA HYDRAULIC-PNEUMATIC ACTUATED PISTON HAVING AN END WALL DISPOSED WITHIN SAID LARGE AREA PRESSURE CHAMBER AND MOVABLE FROM AN INITIAL POSITION TO AN OPERATING POSITION, A SMALL AREA HYDRAULIC ACTUATED PISTON HEAD DISPOSED WITHIN SAID SMALL AREA PRESSURE CHAMBER AND NORMALLY EXTENDING INTO THE LARGE AREA PRESSURE CHAMBER IN SEALING ENGAGEMENT WITH THE LARGE AREA PISTON, SAID SMALL AREA PRESSURE CHAMBER HAVING A QUANTITY OF OIL DISPOSED THEREIN AT ONE SIDE OF SAID PISTON HEAD, SAID LARGE AREA PRESSURE CHAMBER HAVING A QUANTITY OF OIL DISPOSED THEREIN AT THE OTHER SIDE OF SAID PISTON HEAD BETWEEN THE END WALL ON THE LARGE AREA PISTON AND THE SMALL AREA PISTON HEAD, A PISTON ROD CARRIED BY SAID SMALL AREA PISTON HEAD, A DUD MISSILE ENGAGING HEAD FIXED TO THE TERMINAL END OF SAID PISTON ROD, MEANS INCLUDING A HYDRAULIC-PNEUMATIC DEVICE IN COMMUNICATION WITH SAID LARGE AREA PRESSURE CHAMBER FOR SUPPLYING ADDITIONAL OIL TO THE OIL THEREIN TO INCREASE THE PRESSURE OF THE OIL AN AMOUNT SUFFICIENT TO SLOWLY ADVANCE THE SMALL AREA PISTON HEAD, MISSILE ENGAGING HEAD AND ROD UNTIL SAID ENGAGING HEAD CONTACTS A DUD MISSILE, MEANS INCLUDING AN AIR SUPPLY SOURCE IN COMMUNICATION WITH SAID LARGE AREA PRESSURE CHAMBER FOR APPLYING HIGH PRESSURE FLUID TO THE END WALL OF THE LARGE AREA PISTON TO MOVE THE LARGE AREA PISTON AGAINST THE QUANTITY OF OIL IN THE LARGE AREA PRESSURE CHAMBER UNTIL THE OIL PRESSURE THEREIN REACHES A VALUE SUFFICIENT TO QUICKLY MOVE THE SMALL AREA PISTON HEAD, ROD AND DUD ENGAGING HEAD TO A DUD MISSILE JETTISONING POSITION, A BYPASS IN COMMUNICATION WITH THE SMALL AREA PRESSURE CHAMBER FOR QUICKLY PORTING THE OIL THEREFROM DURING MOVEMENT OF THE SMALL AREA PISTON HEAD, ROD AND DUD ENGAGING HEAD TO SAID JETTISONING POSITION, SAID PISTON HEAD SEALING THE BYPASS AS THE DUD ENGAGING HEAD NEARS A JETTISONING POSITION, A RESTRICTED PORT IN COMMUNICATION WITH THE SMALL AREA PRESSURE CHAMBER FOR SLOWLY PORTING THE OIL THEREFROM AFTER THE PISTON HEAD SEALS SAID BYPASS AND THE DUD ENGAGING HEAD NEAR SAID DUD MISSILE JETTISONING POSITION, AND HYDRAULIC-PNEUMATIC ACTUATED MEANS IN COMMUNICATION WITH SAID PORT MEANS FOR RECEIVING THE OIL AS THE OIL IS PORTED FROM SAID SMALL AREA PRESSURE CHAMBER.