Closure devices for containers, and container assemblies incorporating such closure devices

A closure device 14 for a container 12 includes a closure body adapted to fit onto the container thereby to close off an access opening in the container. A dispensing opening is provided in the closure body, and a closure member 35 is slidable along a guide path on the closure body, from a first position in which it closes off the dispensing opening, to a second position in which the dispensing opening is uncovered. A displaceable stop 24 is provided on the closure body so that, when the closure member is in its first position, it is held by the stop against being moved to its second position. The stop hence has to be displaced to permit movement of the closure member from its first to its second position.