Patent ID: 6719166
Filing Date: 2004-04-13
Classification: B65D

Abstract:
A hermetic closure system for a package having a first end defining an opening of the package, the hermetic closure system comprising:a cover having a main face and a first protuberance that projects substantially perpendicular to a plane of the main face, the first protuberance extending about substantially an entire perimeter of the cover, the first protuberance having a first outer wall and a second inner wall defining a substantially U-shaped cross-section and the cover having a first lock element in the form of a projection located on the first wall and projecting radially outwardly away from an interior of the first protuberance; and a receiving ring formed at the first end of the package surrounding the opening, the receiving ring extending about an axis and having a second protuberance that projects substantially parallel to said axis and extends about substantially an entire perimeter of the ring, the second protuberance having a third outer wall and a fourth inner wall defining a substantially U-shaped cross-section and a second lock element in the form of a projection located on the third wall and projecting radially outwardly away from an interior of the second protuberance, wherein the substantially U-shaped profile of the second protuberance includes a generally semicylindrical portion joining an end of the third wall to an end of the fourth wall; the second protuberance of the ring being configured to receive the first protuberance of the cover such that the first and second lock elements engage each other and prevent removal of the cover while so engaged.