Patent ID: 7469794

Claim:
A container closure assembly comprising a container having a finish and external first thread segments and a cup-like cap having a top and a depending circumferentially extending skirt having second internal thread segments engageable with said first thread segments to facilitate application and removal of the cap from the container and detent means on one of said thread segments permitting rotation of the cap in a direction to apply the cap to the container to a fully seated sealed position wherein the cap thread has angularly passed the detent on the container thread and allows only limited rotation of the cap in a direction prior to pressing down the cap to remove it from the container, first and second inter-engaging members formed integrally with the cap and container, one of said inter-engaging members being flexible to bias the cap in an upward direction to maintain the first and second thread segments in engagement and wherein displacement of the cap downwardly against the normal bias of the inter-engaging means displaces said cap and container threads to disengage the detent to permit rotation of the cap in a direction to remove it from the container, said cap and container threads being angularly disposed in such a way that when the trailing end of the cap thread passes over the detent on the bottle thread, the cap can be rotated in either direction in a small angular zone between a fully seated sealed position wherein the cap cannot be displaced in an axial direction relative to the container and a removal position wherein the trailing end of the cap thread segment abuts the detent to provide an axial clearance so the cap can be displaced axially downwardly to displace the threads sufficiently to clear the detent and permit rotation of the cap in a direction to remove it from the container.