A dispenser includes a spout attached to a fluid-filled bag and a socket that is removable attached to the spout. Valves in each of the spout and socket are biased closed but are opened when the socket is latched onto the spout, thereby providing a fluid path from within the bag to the outside. Keying...http://www.google.de/patents/US4948014?utm_source=gb-gplus-sharePatent US4948014 - Two piece valved fluid dispenser
