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Threadable closure with split securing walls and locking notches

  • US 8,051,999 B2
  • Filed: 03/05/2009
  • Issued: 11/08/2011
  • Est. Priority Date: 03/05/2008
  • Status: Active Grant
First Claim
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1. A closure construction, comprising:

  • a container having a bottom closed end with a neck defining a top open end;

    male threading disposed on the neck and about the top open end;

    a pair of locking notches residing in the neck on opposing sides of the top open end;

    a cap removably connected to the neck of the container;

    the cap including an outer shell with top wall, an outer wall, having an inner surface, and an open bottom end;

    a pair of arcuate walls, each having a concave surface and connected to and downwardly depending from the top wall of the cap in spaced apart relation from each other defining a gap therebetween;

    partial threading disposed on each of the concave surfaces of the arcuate walls to, in cooperation with each other, provide a threaded connection between the cap and the male threading disposed on the neck of the container thereby releasably securing the cap to the container;

    a pair of protrusions connected to and emanating inwardly from the inner surface of the outer wall;

    the pair of protrusions residing along a line running through the gap between the pair of arcuate walls and being releasably respectively seated in the pair of locking notches when the cap is threaded past a predetermined point onto the neck of the container to threadably lock the cap to the container.

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