Buoyancy control system for an airship

Details Buoyancy control system for an airship Buoyancy control system for an airship

2006-12-08

2009-02-10

Mansen, Michael R (Department: 3644)

Aeronautics and astronautics

Aircraft, lighter-than-air

Airships

C244S097000, C244S128000

Reexamination Certificate

active

07487936

ABSTRACT:
One embodiment of the invention provides an airship having an outer tube formed in the shape of a toroid and defining a central opening, a first compartment positioned within the outer tube and containing a first gas, and a second compartment positioned within the outer tube and containing a second gas. The airship may also include top and bottom covers further defining and enclosing the central opening, the central opening containing the second gas, and a controller that controls the flow of the first gas into and out of the first compartment to actively control the ascent and descent of the airship.

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