| 摘要 |
<p>A liquid dispensing assembly and method of construction for a push-pull type of valve (20) having a sealing mechanism which resists undesirable dislodgement or leakage such as encountered during transport. The push-pull valve for the container or bottle is equipped with a security seal or connection plug (62) formed between the inner stem (45) and outer sleeve (41) which prevents any relative movement between the inner and outer sleeve during transport, is easily fracturable through deliberate actuation by the user rotating the inner stem.</p> |
