| 摘要 |
<p>The present invention relates to a shutoff device designed for capping of semi-rigid packages of Tetrapak type containing sterilized food products, for example, fruit juices and milk. The reusable shutoff devices comprises a base (1) connected integrally with the package by a supporting surface (4), and a tooth cutting member (8), a sleeve (2) connected with the base (1) by a threaded joint, and a cap (3) connected with the sleeve (2) by a splined joint. Between the supporting surface (4) and a cylindrical part (5) of the base (1) a flexible bridge is made, and the sleeve (2) has a pusher (14), which is acting on a weakened element (15) arranged at the bottom of the cap (3). The invention improves the visual demonstrativeness of the indication of the initial unsealing of the package and makes the package easy to use.</p> |
