| 摘要 |
A closure including a cap and a liner. The bottle cap includes a top, a skirt and a liner retaining protrusion. The top has a perimeter and an inside surface. The skirt depends downwardly from the perimeter. The liner retaining protrusion depends downwardly from the inside surface of the top and is adapted to prevent shifting of the liner with respect to the cap. the top, skirt and liner retaining protrusion may be monolithically formed. The liner retaining protrusion may be conical. The liner retaining protrusion may be spike-shaped. Alternatively, the liner retaining protrusion may include a cylindrical wall which depends downwardly from the inside surface of the top. The liner retaining protrusion may include an outwardly extending bead extending from a lower portion of the cylindrical wall. The liner retaining protrusion extends into the liner to retain the liner and prevent the liner from axially shifting with respect to the cap. The liner retaining protrusion may extend into and through the liner. Alternatively, the liner retaining protrusion may extend through the liner such that an intermediate portion extends axially through the liner and an end portion extends below the liner, the end portion extending at an angle with respect to the intermediate portion.
|
