Ballonet for a balloon
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United States of America Patent
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Feb 28, 2017
Grant Date -
Jul 28, 2016
app pub date -
Apr 4, 2016
filing date -
Feb 3, 2014
priority date (Note) -
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Abstract
Methods and apparatuses are disclosed for altitude control of a high-altitude balloon. A bladder or ballonet is provided within an envelope of a balloon. The bladder is tubular-shaped, is inflatable, and is foldable for insertion into the balloon prior to performing a final seam on the balloon. To stabilize the bladder, the bladder may be attachable to one or more interior surfaces of the envelope with one or more ropes.
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