One-piece closure and package of using the same

Abstract

A one-piece closure includes first and second closure portions. The first closure portion includes a first polymeric top wall portion and a first polymeric annular skirt portion depending from the first polymeric top wall portion. The first polymeric top wall portion includes a continuous wedge seal extending from an inner surface of the first polymeric top wall portion. The continuous wedge seal includes a surface-tension geometric structure being located therein to assist in preventing or inhibiting contents of a container from leaving the one-piece closure when the first closure portion is in an open position. The second closure portion includes a second polymeric top wall portion and a second polymeric annular skirt portion depending from the second polymeric top wall portion. The one-piece closure is adapted to be opened by flipping the first closure portion with respect to the second closure portion via a hinge or pivot point.

What is claimed is: 
     
         1 . A one-piece closure comprising:
 a first closure portion including:
 a first polymeric top wall portion including a continuous wedge seal extending from an inner surface of the first polymeric top wall portion, the continuous wedge seal including a surface-tension geometric structure being located therein to assist in preventing or inhibiting contents of a container from leaving the one-piece closure when the first closure portion is in an open position, 
 a first polymeric annular skirt portion depending from the first polymeric top wall portion; and 
   a second closure portion including a second polymeric top wall portion and a second polymeric annular skirt portion depending from the second polymeric top wall portion,   wherein the one-piece closure is adapted to be opened by flipping the first closure portion with respect to the second closure portion via a hinge or pivot point.   
     
     
         2 . The one-piece closure of  claim 1 , wherein the surface-tension geometric structure extends completely across or substantially across the continuous wedge seal. 
     
     
         3 . The one-piece closure of  claim 1 , wherein the surface-tension geometric structure occupies a substantial amount of an interior space of the continuous wedge seal. 
     
     
         4 . The one-piece closure of  claim 1 , wherein the continuous wedge seal is generally circular shaped. 
     
     
         5 . The one-piece closure of  claim 1 , wherein the surface-tension geometric structure is a honeycomb structure. 
     
     
         6 . The one-piece closure of  claim 1 , wherein the surface-tension geometric structure is a lattice or slat structure. 
     
     
         7 . The one-piece closure of  claim 1 , wherein the surface-tension geometric structure is a swirl or a plurality of concentric rings. 
     
     
         8 . The one-piece closure of  claim 1 , wherein a depth of the surface-tension geometric structure is from about 20 to about 100% of a depth of the continuous wedge seal. 
     
     
         9 . The one-piece closure of  claim 8 , wherein the depth of the surface-tension geometric structure is from about 40 to about 100% of the depth of the continuous wedge seal. 
     
     
         10 . The one-piece closure of  claim 1 , wherein the surface-tension geometric structure covers from about 50 to about 100% of an interior area of the continuous wedge seal. 
     
     
         11 . The one-piece closure of  claim 10 , wherein the surface-tension geometric structure covers from about 70 to about 100% of the interior area of the continuous wedge seal. 
     
     
         12 . The one-piece closure of  claim 1 , wherein a volume-to-surface ratio of the various geometric structure is from about 0.02 in 3 /in 2  to about 0.06 in 3 /in 2 . 
     
     
         13 . The one-piece closure of  claim 1 , wherein the one-piece closure includes a hinge and a tamper-evident component. 
     
     
         14 . The one-piece closure of  claim 1 , wherein the closure comprises at least one polyolefin. 
     
     
         15 . A package comprising:
 a container having a neck portion defining an opening; and   a one-piece closure being configured for fitment to the neck portion of the container for closing the opening, the one-piece closure including a first closure portion and a second closure portion, the first closure portion includes a first polymeric top wall portion and a first polymeric annular skirt portion, the first polymeric top wall portion including a continuous wedge seal extending from an inner surface of the first polymeric top wall portion, the continuous wedge seal including a surface-tension geometric structure being located therein to assist in preventing or inhibiting contents of a container from leaving the one-piece closure when the first closure portion is in an open position, the first polymeric annular skirt portion depending from the first polymeric top wall portion, the second closure portion including a second polymeric top wall portion and a second polymeric annular skirt portion depending from the second polymeric top wall portion,   wherein the one-piece closure is adapted to be opened by flipping the first closure portion with respect to the second closure portion via a hinge or pivot point.   
     
     
         16 . The package of  claim 15 , wherein the container includes an external thread formation on the neck portion, and wherein the one-piece closure includes an internal thread formation that corresponds with the external thread formation on the neck portion of the container. 
     
     
         17 . The package of  claim 15 , wherein the surface-tension geometric structure is a honeycomb structure. 
     
     
         18 . The package of  claim 15 , wherein a depth of the surface-tension geometric structure is from about 20 to about 100% of a depth of the continuous wedge seal. 
     
     
         19 . The package of  claim 15 , wherein the surface-tension geometric structure covers from about 50 to about 100 percent of an interior area of the continuous wedge seal. 
     
     
         20 . A package comprising:
 a container having a neck portion defining an opening, the container having an external thread formation on the neck portion;   a tamper-evident component having an external thread formation and an internal thread formation; and   a one-piece closure being configured for fitment to the neck portion of the container for closing the opening, the one-piece closure including a first closure portion and a second closure portion, the first closure portion includes a first polymeric top wall portion and a first polymeric annular skirt portion, the first polymeric top wall portion including a continuous wedge seal extending from an inner surface of the first polymeric top wall portion, the continuous wedge seal including a surface-tension geometric structure being located therein to assist in preventing or inhibiting contents of a container from leaving the one-piece closure when the first closure portion is in an open position, the first polymeric annular skirt portion depending from the first polymeric top wall portion, the second closure portion including a second polymeric top wall portion and a second polymeric annular skirt portion depending from the second polymeric top wall portion, the one-piece closure including an internal thread formation,   wherein the tamper-evident component is adapted to thread onto the external thread formation of the container via the internal thread formation of the tamper-evident component,   wherein the one-piece closure is adapted to thread onto the external thread formation of the tamper-evident component container via the internal thread formation of the one-piece closure,   wherein the one-piece closure is adapted to be opened by flipping the first closure portion with respect to the second closure portion via a hinge or pivot point.