| 摘要 |
<p>A cap (1) adapted to form a securely sealed closure when used in combination (20) with a container (10). The cap (1) has locking ribs (3) which engage a snap groove (13) between flanges (11, 12) of the container (10). Three axially displaced lines define three points of contact (14, 16, 18) between the cap (1) and the container (10) and self-align the cap (1) on the container (10). In addition, a locking collar (30) can be placed over the cap (1) to increase the pressure at the three points of contact (14, 16, 18). A pull tab (60) can be used in conjunction with the cap (1) (with or without the locking collar (30)) to facilitate removal of the cap (1) from the container (10).</p> |
