Patent attributes
A preservation device, configured to form an air tight seal when disposed on a bottle and/or a vessel, is used to preserve liquids and other items, such as foodstuffs, which spoil when exposed to oxygen for a period of time. The device comprises at least a container which contains an oxygen absorber to remove oxygen remaining in the bottle or vessel after it is sealed by the preservation device. The container or the oxygen absorber has a gas permeable, liquid impermeable membrane. The preservation device may include an air channel system to control the flow of the liquid to be dispensed from the bottle without requiring the removal of the entire stopper device from the bottle, to enable the liquid to be dispensed while only allowing a minimal amount of oxygen to enter the bottle, thus improving preservation.
