Patent ID: 6126027
Filing Date: 2000-10-03
Classification: B65D

Abstract:
A unitary closure molded from a plastic material for closing and sealing an opening in a neck of a container, comprising(a) a crown;(b) a skirt depending from an outer portion of said crown, said skirt including a screw thread on a radially inner surface thereof;(c) an inner flared surface extending downwardly and outwardly from said crown to said skirt;(d) an annular resilient fin extending downwardly and outwardly from an articulation position on an underside of said crown at a position spaced radially inwardly from said flared surface and having a length slightly greater than the spacing from said flared surface, said fin having a bulbous lower end and being deformed outwardly by the top of the neck of the container when said closure is screwed onto the neck, the bulbous lower end of said fin being pressed into engagement with said flared surface when said closure is screwed onto the neck; and(e) a locator annulus arranged radially inwardly of said fin and extending downwardly from the underside of said crown to a distance beyond the extension of said fin, said locator annulus partially engaging an inner surface of the container neck while the closure is screwed onto the container neck but without sealing with the container neck when the closure is screwed thereon.