Patent ID: 7895815

Claim:
A device for controlling the amount of air within a container, wherein the device comprises: a housing having a distal end and a proximal end and defining a chamber; a first port defined in the distal end of the housing providing fluid communication to the chamber; a second port defined in the proximal end of the housing providing fluid communication to the chamber; a plug movably disposed within the chamber between a relaxed position and a displaced position, wherein in the relaxed position the plug occludes the first port, and wherein in the displaced position the plug is displaced a predetermined distance from the first port; means for connecting the distal end of the housing to a portion of the container such that the first port is substantially co-axially aligned with an opening in the container, and such that an essentially airtight seal is formed between the housing and the opening in the container; means for moving the plug to the displaced position; and means for injecting or evacuating air from the container.