Aeronautics and astronautics – Aircraft – lighter-than-air – Balloons
Patent
1990-06-04
1991-08-27
Peters, Jr., Joseph F.
Aeronautics and astronautics
Aircraft, lighter-than-air
Balloons
244 31, 244 96, 244 93, 244127, 182142, B64B 150
Patent
active
050427482
ABSTRACT:
A rescue balloon for rescuing individuals from high places such as towers and building includes an enclosed envelope for holding heated air under substantially greater than atmospheric pressure with a burner contained within the enclosed envelope for burning a combustible gas to generate sufficient heated air under pressure in the envelope to provide lift to the balloon. A rescue compartment is carried by the envelope for accommodating rescued individuals and a tether is provided for guiding the balloon as necessary to effect rescues. The balloon includes a porous blast shield positioned within the envelope to prevent direct contact between the envelope and the flame of the burner. The blast shield comprises an upright cylinder supported and secured in fixed relation within the envelope by a plurality of catenaries attached to the blast shield and to the inner walls of the envelope around its perimeter. The burn super-pressurizes the heated air within the envelope. The balloon also includes a fuel supply positioned within the envelope for supplying fuel to the burner, and a cantilever beam positioned in the envelope for counterbalancing the load in the balloon as the load varies according to the number and position of rescued individuals on the balloon and the amount of fuel consumed. The cantilever beam is positioned within the envelope with the fuel supply mounted on the beam. The fuel supply is moved along the beam in response to changes in the balance, or tilt, of the balloon envelope.
REFERENCES:
patent: 4084771 (1978-04-01), Creuzet
patent: 4421204 (1983-12-01), Lawrence
Adams, III W. Thad
Bidwell Anne E.
Peters Jr. Joseph F.
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