Patent ID: 8286813

Claim:
A device detachably mounted on a neck of a bottle for replacing a screw cap of the bottle, and which as mounted provides a reversible closure function by which a flow communication to an interior of the bottle is shifted between an open mode and a closing mode, the device comprising: a mounting part having an internal thread configured to engage an external thread formed on the a neck of the bottle; a handle journalled for rotation in the mounting part, the handle comprising a head which in result of rotation of the handle upwards/outwards from the bottle in a vertical plane provides access to a mouth of a canal running through the mounting part, the head further comprising a seal which, in result of rotation of the handle downwards/inwards towards the bottle, is positioned for closing said canal through the mounting part; and a ratchet configured to act between the mounting part and the handle, the ratchet configured to prevent the handle from rotation relative to the mounting part in the closing mode.