Lighter-than-air craft
Patent 4014483 Issued on March 29, 1977. Estimated Expiration Date: 
March 29, 1994. 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.
March 29, 1994. 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 3469804 3514053 3752417 3820744 Rescue capsule for use with a helicopter Patent #: 3934847 InventorApplicationNo. 05/613221 filed on 09/15/1975US Classes:244/5, Airplanes, weight diminished by bouyant gas244/137.2, Passenger244/23CCircular configurationExaminersPrimary: Kunin, Stephen G.Assistant: Kelmachter, Barry L. Attorney, Agent or FirmAbstractA lighter-than-air craft having a discus shape. A passenger compartment is located at the top center of the craft and a payload pod at the bottom center beneath the passenger compartment. The pod connects to the passenger compartment by a passageway which extends up through the center of the craft. Moreover, the pod is detachable from the craft, and can be raised or lowered to the ground, thus eliminating the need to land the craft in picking up or discharging passengers and cargo. The discus shape, together with a plurality of automatically controllable ailerons distributed about the circumference of the craft, improve the stability and control of the craft in flight. | |
