WINE BOTTLE SCREW CAP

摘要

A wine bottle screw cap for protecting wine in a bottle from oxidation after partial consumption. The wine bottle screw cap includes a hollow cylindrical body (2) an inert gas container (8), a valve (5) and a pressure compensator (17). The screw cap also may include a plastic bung (10) configured for insertion in the bottle neck to tightly plug the latter. The container (8) injects inert gas through the valve (5) into the bottle. The air, displaced by the inert gas, flows through the pressure compensator (17) and discharges into the atmosphere.