Abstract: The invention relates to a closure for a liquid container, comprising a plug manufactured from at least partially flexible material with a recess which is arranged at least substantially in axial direction in the plug and which is accessible on at least one side, and an operating member protruding outside the plug and displaceable in the recess such that a force exerted by the operating member on the recess in the plug can be modified by displacing the operating member. The invention also relates to methods for placing such a closure into a liquid container and removing thereof from a liquid container.
Abstract: The invention relates to a closure for a liquid container, comprising a plug manufactured from at least partially flexible material with a recess which is arranged at least substantially in axial direction in the plug and which is accessible on at least one side, and an operating member protruding outside the plug and displaceable in the recess such that a force exerted by the operating member on the recess in the plug can be modified by displacing the operating member. The invention also relates to methods for placing such a closure into a liquid container and removing thereof from a liquid container.