Patent ID: 6119898
Filing Date: 2000-09-19
Classification: B65D

Abstract:
A tamper evident closure, comprising:a base for mounting to a container;a diaphragm integrally formed with and permanently mounted to said base;a pivotally moveable spout integrally formed with and permanently mounted to said diaphragm and base to define a unitary one-piece closure, said spout containing a distal end and a proximal end, and said spout being pivotable relative said base between a first position closing a passage there through and a second position to open said passage;a tab;a frangible web integrally formed in an end of said tab;said frangible web connecting a first end of said tab to one of said base or said distal end of said spout, when said spout is initially in said first position;a tab seat formed in the other one of said base or said distal end of said spout; anda joint permanently attaching said tab to said tab seat to define a visible mechanical strap between said distal end of said spout and said base, said strap appearing continuous;wherein to pivot said spout from said first position to said second position said frangible web must be broken to produce a discontinuity in said strap, whereby said discontinuity produces visible evidence that said spout has previously been placed in said second position.