| 摘要 |
<p>Retractable spout assemblies for use in bottle or can-type containers may include a membrane for sealing the container and holding the spout in a retracted position using mechanical force transmitted using a ring extending from a separately secured cap. In the case of a can where a pouring direction is important, the retractable spout is rotatable even in the retracted position when covered by a cap to achieve an alignment that provides correct pouring. The spout may include a one-way valve and may also be pivotally mounted for tilting.</p> |
