Methods and apparatus for liquid preservation
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United States of America
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Apr 13, 2021
Grant Date -
Apr 25, 2019
app pub date -
Dec 17, 2018
filing date -
Dec 17, 2018
priority date (Note) -
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Abstract
Methods and apparatus for liquid preservation according to various aspects of the present invention may comprise a vessel and a displacer. The displacer may be disposed in an interior volume defined by an interior surface of the vessel. The displacer may change the volume of the interior volume. An aperture at an apex of the displacer or vessel may allow air to escape from the interior volume as the displacer decreases the volume of the interior volume. An at least partially transparent displacement indicator may be positioned atop the aperture.
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