Patent ID: 6883689

Claim:
Device for closing a container provided with a neck, said device comprising a pourer ( 3 ) to be mounted on the neck and a cap ( 4 ) to be mounted over the neck and said pourer in a position to close the neck, an element ( 36 ) carried by said pourer and which moves within said pourer when urged by a force (F 1 ) applied in a direction of the neck when said cap is applied over the neck and said pourer, a membrane closure ( 5 ) carried by said pourer and including means to create a seal between said element and the neck, said cap ( 4 ) including a part ( 45 ) to engage against said element ( 36 ), and said pourer ( 3 ) being equipped with a lip ( 35 c ) defining, with said element ( 36 ), a pre-positioning chamber ( 39 ) for seating said membrane closure.