Patent ID: 6135329
Filing Date: 2000-10-24
Classification: B65D

Abstract:
A container closure comprising, a universal base adapted to be positioned on a container and to cooperate interchangeably with a selected twist cap or a pull/push cap having an inner surface installed on said universal base, a twist cap or a pull/push cap engaged upon the base, either of said caps having a top surface, a central aperture passing through the top surface, the base having a central post terminating with a plug which engages the aperture to seal the same when either of said selected caps is positioned on the base at a first closed location thereof, either of said selected caps being movable on the base to a second open location in which the plug is disengaged form the aperture, the post having an external surface with a lower portion and an upper portion extending from said lower portion, said upper and lower portions being separated by an abutment surface extending circumferentially about the post, an annular rib formed on the post proximate the terminal end thereof having aid plug, said annular rib extending circumferentially about the external surface of the post, a pair of helical grooved channels formed on said lower portion, the inner surface of said twist cap including a pair of radially inwardly projecting drive threads matingly engageable with respective ones of said helical grooved channels, the inner surface of said pull/push cap including an inwardly projecting ring, said twist cap being movable on said universal base between said first and second locations by twisting thereof with respect to said base, and said pull/push cap being interchangeable with said twist cap on said universal base and being movable on said universal base between said first and second locations by pulling and/or pushing thereof with respect to said base.