Abstract: The invention relates to a closure device for a container, comprising a base element that can be attached to an opening of the container, and a cover that can be disposed back and forth between a completely closed, and a completely open, position, wherein the closure device is configured such that the cover has at least one defined intermediate position between the completely closed and the completely open positions, and wherein the closure device has at least one degasing channel, which is sealed off in the completely closed position of the cover and enables pressure compensation between a side of the closure device facing the interior of the container and the surrounding area in the intermediate position of the cover.

Abstract: The invention relates to a closure for a container that holds a free-flowing product. The container is characterized by the following: a fixed lower part which can be fastened to a container neck that surrounds a container opening in order to seal said neck; a cover comprising a protruding connecting piece that forms a passage for the free-flowing product; a displaceable upper part which can be coaxially displaced on the lower part in and against the direction of the container between an outer resting position and an inner actuating position; a breaker or dish-shaped diaphragm valve which has a base consisting at least of a flexible elastic material and whose upper edge seals the underside of the upper part; perforations in the base of the diaphragm valve which are closed in the testing position of the upper part; and a diameter of the base that is greater than the inner cross section of the connecting piece.