| 摘要 |
A safety package including a container with a unitary screw type cap in which the container has a locking lug engageable with one of a plurality of ratchet teeth located around the circumference of the cap. The ratchet teeth permit turning movement of the cap in a closing direction until the cap is squeezed and deformed at diametrically opposed points to move the engaged ratchet tooth out of engagement with the locking lug to permit turning movement of the cap to an opening position. A second locking lug is offset from a point diametrically spaced from the first locking lug so that one or the other of the lugs engages a ratchet tooth thereby doubling the effectiveness of the teeth.
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