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Child resistant tamper indicating closure

  • US 4,431,110 A
  • Filed: 11/09/1982
  • Issued: 02/14/1984
  • Est. Priority Date: 11/09/1982
  • Status: Expired due to Term
First Claim
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1. A closure assembly of the type including a container having a dispensing opening surrounded by an axially inwardly facing annular shoulder, a closure plug received in said container opening and having an enlargement defining an axially outwardly facing annular shoulder lockable behind said container shoulder, and a lever connected to said closure plug for applying a lifting force to a limited circumferential portion of said enlargement, the relationship between said shoulders being such that for most of the circumference of said container shoulder the lever is inoperative to remove said closure plug, and a circumferential portion of said container shoulder being relieved wherein when said limited circumferential portion of said enlargement is aligned with said relieved portion of said container shoulder said lever is operative to remove said closure plug, and said closure plug being rotatable within said dispensing opening relative to said container so as to be child-proof.

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