Detachable spout and closure

A device for closing an opening of a container comprising

• a tubular member having an axis, an inner hollow and two open end portions, one of said end portions of said tubular member being connectable with a container in the region of its opening so that said tubular member firmly surrounds the opening of the container and said inner hollow of said tubular member communicates with the interior of said container through the opening, said one end portion of said tubular member being connectable to the container directly and removably so that said tubular member can be disconnected from the container and connected with another such container;
• a closing member for closing the other end portion of said tubular member and movable between a closed position in which said closing member is associated with said other end portion of said tubular member so as to close the same whereby a material accommodated in the interior of the container cannot be discharged from the latter and access to the interior of the container is prevented, and an open position in which said closing member is withdrawn from said other end portion of said tubular member whereby the material from the interior of the container can be discharged through said tubular member;
• and
• means for removably connecting said one portion of said tubular member to the container and allowing the disconnection of said tubular member from the container and the connection of the same to another container having unprepared opening without any connecting elements, said connecting means being a one piece member removably connectable with the container.