| 摘要 |
A two phase interlock secures a cap to a container of a fluid. The interlock includes flanges extending from the cap for engaging lugs located about the mouth of the container which flanges are disengageably engagable with the lugs by rotating the cap relative to the container and a key extends from the cap into a key way in the container to prevent rotation of the cap relative to the container without withdrawal of the key from the keyway by deliberate precise flexing of the cap. |
