| 摘要 |
A lid, having an opening area encased by one of the variety of shaped sidewalls with a flexible ribbed portion extending downwardly to one of the variety of shaped bases (e.g., a domed shaped base), is provided for completely purging of atmospheric gases out of a container upon installation so as to eliminate head space by forming an airtight barrier with the container and the lid. A lid rim, having an inside portion connected to the top of the one of the variety of shaped with the flexible ribbed portion and an outside portion is provided for sealing the lid to the container. The dome shaped base is connected to the bottom of the one of the variety of shaped sidewalls forming a circular base of the lid. The one of the variety of shaped sidewalls is provided for manipulating the lid from a relaxed state to an elongated state while being submerged into a liquid to displace an amount of fluid needed to raise the fluid level. |
