Patent ID: 8151836

Claim:
A closure for a liquid container, the closure including: a guide ( 38 ) defining a passageway for sealingly receiving a probe ( 5 ) having a flow path ( 6 ) for conducting liquid from the container ( 3 ) and a separate flow path ( 29 ) for conducting air into the container; and a valve member ( 44 ) which is received in said guide in a sealing position wherein the valve member sealingly closes the passageway, and the valve member is provided with means ( 52 ) for engaging the probe and is arranged such that the valve member is carried out of the guide by the probe upon movement of the probe through the passageway leaving a clear separation between the valve member and the guide, characterized in that the valve member ( 44 ) has at least one vent aperture ( 47 ) which is normally closed to the interior of the container when the valve member is in the sealing position, but when the valve member is engaged with the probe said vent aperture or apertures communicate with the air flow path ( 29 ) to admit air into the interior of the container through said vent aperture or apertures whilst liquid simultaneously flows out of the container into the liquid flow path ( 6 ) via said clearance between the valve member and the guide.