Patent ID: 6095381
Filing Date: 2000-08-01
Classification: B65D

Abstract:
A self-closing closure for dispensing a product, said closure comprising:a closure cap including a through-passage opening formed therein; anda closure membrane coupled to the closure cap proximate the opening, said closure membrane including:a bottom retaining border;a self-closing top closure head that is essentially concave and, in response to product pressure, is capable of axial movement with respect to the retaining border between a lower rest position and an upper dispensing position; anda connecting wall and an inclined portion, said closure head being circumferentially coupled at a top end of the connecting wall, said inclined portion being coupled between said connecting wall and said retaining border, whereby said connecting wall and said inclined portion coupling said retaining border and said closure head together, said inclined portion forming an acute angle with a closure axis, said inclined portion being inclined downwards and inwards toward the product when the closure head is in its lower position and being movable in response to product pressure to an upwards and inwards inclined position when the closure head rises to its dispensing position.