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Visible tamper-proof closure arrangement

  • US 4,456,139 A
  • Filed: 11/02/1982
  • Issued: 06/26/1984
  • Est. Priority Date: 11/02/1982
  • Status: Expired due to Fees
First Claim
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1. A container and closure cap arrangement comprising;

  • a container having a neck portion defining an access opening,a closure cap having a cap end portion and a skirt portion, said closure cap and container neck portion being mutually cooperable to enable releasable mounting of said closure cap on said neck portion, said container neck portion and said closure cap having seal receiving surfaces selectively formed thereon,and a seal member interposed between said closure cap and said container so as to be inaccessible from externally of said closure cap, said seal member being mutually cooperable with said seal receiving surfaces on said container and closure cap when mounted on said container such that relative movement between said container and closure cap causes irreversible deformation of said seal member,said closure cap having at least one transparent portion enabling visual observation of said seal so that deformation of said seal may be observed through said closure cap to provide an indication of tampering with said container.

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