| 摘要 |
A tamper-indicating closure (20) for a container includes a cap (24) having a top wall (26) with removable panels (34). Each removable panel (34) is connected to a tab (36) on the inside of the cap. The top wall includes inner and outer cams (42, 44) on an inside surface and the tabs underlie the cams. A liner disc (32) is applied inside the cap for sealing against the container. A plurality of spaced-apart ratchet teeth (66) are arranged in one or two circular patterns on the disc such that the teeth mesh with the two cams. The tabs (36) have a toothed transverse cross-section which allow the tabs to ride over the ratchet teeth (66) when screewing-on the cap, but are engaged by the teeth when screwing-off. Since the liner disc (32) and ratchet teeth (66) are stationary with respect to the container, unscrewing of the cap (24) causes the ratchet teeth to separate the panels (34).
|
