Tamper-proof closure cap with self-removing ring
AssigneeDairy Cap Corporation
InventorVincent N. Conti
Life of this patent
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Abstract
A tamper-proof container closure cap is provided with a self-removing ring which breaks away from the cap in a strip as the cap is twisted open. Specifically, the cap is provided with a pawled ring which is split, frangibly attached to the cap adjacent each end, and free of engagement with the cap for a substantial distance in the direction opposing cap twist off. This structure effects removal of the ring from both the cap and the container as the cap is twisted off.
Claims6
A tamper-proof container closure for a container having a threaded mouth portion and a plurality of teeth members adjacent said mouth portion, said closure comprising:
- a threaded cap for engaging the mouth portion of said container;
- a split ring having a pair of separated ends frangibly coupled to said threaded cap, said split ring including a plurality of pawls for interlockably engaging said plurality of teeth members on said container when the closure is rotated in the direction of cap twist off and the portion of said split ring adjacent to one end being free of engagement with said cap for a substantial length in the direction opposing cap twist off.
Dependencies are inferred from the claim text.