Fecha de publicación: 24/11/2022 Fuente: WIPO Wine Stopper for wine and cava bottles. The invention consists of a cap of an elastic nature, which adapts to the neck of the bottle in question, and which includes an internal chamber with a series of windows (5) that can be sealed and unsealed by means of a membrane (6) one-piece with the cap, which adapts tightly to said windows when the cap is closed, but which, by pressing a button (8) it is possible to reverse the curvature of said membrane by elastic deformation, which releases the windows (5) allowing the pouring of the contents of the bottle. (Machine-translation by Google Translate, not legally binding)