Aircraft with jettisonable fuel tank means
Patent 4306693 Issued on December 22, 1981. Estimated Expiration Date: 
December 22, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 22, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2623721 2702680 2749065 2764374 3409254 3677284 3754569 InventorApplicationNo. 05/927811 filed on 07/25/1978US Classes:244/135R, Fuel supply137/572, Separable with valved-connecting passage244/140, Passenger compartment244/149Opening devicesExaminersPrimary: Barefoot, Galen L.Attorney, Agent or FirmInternational ClassesB64D 37/00 (20060101)B64D 37/12 (20060101) AbstractA powered aircraft has a jettisonable fuel tank releasably secured in the bottom of its fuselage. A valve is arranged to shut off fuel flow from the tank upon releasing of the tank from the fuselage, whereupon a parachute connected to the tank is released to slow the descent of the tank. Additionally, a reserve fuel tank in the fuselage is normally connected to the jettisonable fuel tank, and the valve is so arranged that fuel flow communication is normally maintained between the jettisonable fuel tank and the aircraft engine while fuel is prevented from flowing from the reserve tank to the engine. However, when the jettisonable fuel tank is released from the fuselage, the valve shuts off the flow of fuel from the jettisonable fuel tank and establishes open communication between the reserve tank and the engine to permit continued operation of the aircraft under power of the engine. | |
