Airship & method of operation
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United States of America Patent
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Jun 30, 2009
Grant Date -
Mar 29, 2007
app pub date -
Sep 28, 2005
filing date -
Sep 28, 2005
priority date (Note) -
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Abstract
This invention relates to the field of buoyant aircraft and operation thereof, in particular, airships with improved stability. The present invention is directed to non-rigid, non-spherical airships having an envelop contained within the airship and at least one further envelop contained therein for holding a volume of lifting gas.
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