Patent ID: 9238533
Filing Date: 2016-01-19
CPC Classification: B65D,B67B

Claim Text:
1. A fluid preservation device for preserving a liquid within a container, the fluid preservation device comprising: an elongated member with a proximal end and a distal end; where the elongated member comprises an inner shaft and an outer shaft; where the outer shaft is attached to an expandable sealing member; where the inner shaft is attached to the expandable sealing member; where the inner shaft includes an end piece at its distal end; where the end piece is configured to float; where the expandable sealing member has an expanded state and a collapsed state; a state change mechanism attached to the proximal end of the inner shaft and the outer shaft of the elongated member to change the state of the expandable sealing member between the expanded state and the collapsed state; where the expandable sealing member in the collapsed state is sized to pass through an opening of a container; and where the expandable sealing member in the expanded state is sized to contact an inner surface of the container near a surface of the liquid.