Patent ID: 9439523
Filing Date: 2016-09-13
CPC Classification: A47G,B65D

Claim Text:
1. An under pressure activatable closure for a container, comprising: an operating member connectable to an opening of the container; a partition connectable to the opening of the container and positioned between the opening of the container and the operating member; the annular membrane, the tubular inner portion, the discharge tube and the sealing member are axially actuatable relative to the outer portion between a first position and a second position where the second position is closer to the container, and where the sealing member in the first position is engaging the outflow orifice and where the sealing member in the second position is disengaged from the outflow orifice to allow fluid to flow from the container through the outflow orifice via the fluid flow paths and the drinking opening; the lower edge is in the second position displaced to a position closer to the container than the upper edge; and the annular membrane is configured to provide a returning force to resiliently bias the inner portion, the discharge tube and the sealing member towards the first position such that the returning force is lower with the inner portion located at the second position relative to the first position.