BigPatents India

A closure system for a container comprising a base cap (11) located over a hole in the container and having at least one aperture (17) for passage of fluid therethrough, an overcap (12) locatable over the base cap, having an opening to allow passage of fluid or milk therethrough and moveable between an open position where the fluid can pass through the opening and a closed position where the fluid is substantially prevented from passage through the opening, a nozzle or teat (13) which is coupled to the overcap (12) and having an outlet (41) for passage of fluid therethrough and a passage (30) in the form of a groove that extends from the interior of the overcap (12) to a region above the overcap (12).