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Closure assembly

  • US 10,676,261 B2
  • Filed: 09/07/2017
  • Issued: 06/09/2020
  • Est. Priority Date: 09/07/2017
  • Status: Active Grant
First Claim
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1. A closure for a container, the closure comprising:

  • a base comprising;

    a mounting portion;

    a neck portion centered and extending about a vertical axis;

    a thread formed about an exterior surface of the neck; and

    a track formed along an interior surface of the neck, the track defined by;

    a lower end of a vertical guide extending generally perpendicularly downwards from an upper portion of the neck; and

    an upper surface of a bottom guide extending below at least a portion of the lower end of the vertical guide;

    a cutter comprising;

    a cylindrical body;

    a cutting element extending downwards from a lower end of the cylindrical body;

    a downwardly angled rib extending about an outer surface of the cutter; and

    a fin extending radially inwards from an inner surface of the cylindrical body,wherein the fin terminates at an end opposite the inner surface of the cylindrical body;

    a cap comprising;

    a top panel;

    a skirt extending downwards from an outer periphery of the top panel;

    a thread configured to interact with the thread of the base to sealingly attach the cap to the base; and

    a drive tab extending downwards from a lower surface of the top panel;

    wherein in an assembled, pre-initial opening configuration of the closure, the cutter is located within the neck portion of the base such the bottommost surface of the cutting element is located above a lowermost portion of the neck portion and the cap is sealingly attached to the base by an engagement of the thread of the cap with the thread of the base;

    wherein upon initial removal of the cap from the base, rotation of the cap relative to the base results in the engagement of the drive tab with the fin, causing the cutter to be rotated relative to the base;

    the rotation of the cutter relative to the base resulting in the rib entering into and traveling downwards along the track as the cap is rotated relative to the base, with the downward rotational movement of the cutter relative to the base causing the cutting element to move to a position in which the bottommost surface of the cutting element extends below the lowermost portion of the cap.

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