Patent ID: 11760541

Abstract:
A rigid stopper (10) made of bisphenol-free polycarbonate and silicone synthetic materials, particularly for a wine bottle (48), comprises a cylindrical body (12) and two opposing faces (16, 18), and at least two compressible-elastomeric “O”-rings (22, 24) seated in corresponding circumferential grooves (26, 28) on a side (14) of the body (12). The faces (16, 18) are comprised of foramen (42, 44) respectively which communicate with a volute-cavity (40) for the purpose of accepting a cork-screw-extractor. The volute-cavity (40) is comprised of a partition (46) at a central-plane (56) for the purpose of preventing wine from leaking through the volute-cavity (40). “O”-rings (22, 24) are compressively forced into a mouth (50) of a bottle (48) positioning either face (16) or face (18) flush with the mouth (50) thereby providing adequate compressive force in maintaining position of the stopper (10). Stopper (10) having longitudinal symmetry about a central plane (56), either face (16) or (18) of stopper body (12) maintains compatibility with random orientation of the stopper (10) in “corking” process of packaging.