Lift bag with automatic gas volume regulation
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United States of America Patent
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Feb 7, 2023
Grant Date -
N/A
app pub date -
Jun 1, 2021
filing date -
Jun 3, 2020
priority date (Note) -
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Abstract
A lift bag for moving an object underwater includes a lift bag body and a buoyancy regulator device within an internal cavity of the lift bag body. The buoyancy regulator device includes concentric regulator tubes. Each regulator tube includes a regulator tube opening and the regulator tube openings may be aligned to define a regulator tube aperture. The regulator tube aperture is in fluid communication with a lift bag slot formed in the lift bag body. A constant buoyancy for the lift bag is determined by adjusting the position of the regulator tube aperture by moving the inner and outer regulator tubes with respect to each other.
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