TAMPER EVIDENT CLOSURE

摘要

The present invention concerns a tamper-evident closure means (10) which comprises a sealed reservoir means (4) containing a colouring means, a transfer means (5), a window means (9) and a rupturing means (8), whereby, upon opening of the tamper-evident closure means, the rupturing means ruptures the sealed reservoir means and the colouring means flows via the transfer means to the window means thus indicating tampering to a user.