Patent ID: 7681750

Claim:
A closure for container that holds a free-flowing product with a fixed lower part ( 12 ), which can be closely fastened to a container neck and a cover ( 18 ) with an externally protruding connecting piece ( 20 ), whereby a displaceable upper part ( 14 ) is coaxially displaceable on the lower part ( 12 ) between an outer position and an inner position, a beaker-shaped diaphragm valve ( 42 ) consisting of a flexible elastic material, the upper edge ( 50 ) of which seals the underside ( 54 ) of the upper part ( 14 ), having perforations ( 45 ) in its base ( 48 ), which are closed in the resting position of the upper part ( 14 ), and continuously pretensions the upper part ( 14 ) in the direction of its outer position, characterized in that the diameter of the base ( 48 ) of the diaphragm valve ( 42 ) is dimensioned larger than the inner cross section of the connecting piece ( 20 ), the outer end of which continuously supports the base ( 48 ) of the diaphragm valve ( 42 ) so that, when axial pressure is exerted on the upper part ( 14 ) in the direction of the container, the base ( 48 ) of the diaphragm valve ( 42 ) is bent outwards and the perforations ( 45 ) of the base ( 48 ) are opened.