Patent attributes
A container closure assembly comprising a container having a finish and external threads and a cup-like cap having a top and a depending circumferentially extending skirt having second internal threads engagable with the container threads. Detents are providing on one of said threads to normally prevent rotation of the cap in a direction to remove it from the container. First and second interengaging members are formed integrally with the cap and container. One of the interengaging members is flexible to bias the cap in an upward direction to maintain the threads in engagement when the cap is seated on the container. Displacement of the cap downwardly against the normal bias of the interengaging means displaces the cap and container threads to disengage the detents to permit rotation of the cap in a direction to remove it from the container.