Container closures

Abstract

A lid is disclosed herein. The lid comprises a base comprising a peripheral edge and a skirt extending downward from the peripheral edge. The skirt comprises a pair of release tabs diametrically opposite from one another. Each of the pair of release tabs are defined by a first cut and a second cut within the skirt which separates the release tab from the remainder of the skirt. Each of the release tabs is hingedly connected to the base. Each of the pair of the release tabs extend upwardly from the base, opposite the skirt. Each release tab further comprises a latching protrusion extending radially inward from an inner surface of the release tab towards a central axis of the lid.

What is claimed is: 
     
         1 . A lid comprising:
 a base comprising a peripheral edge;   a skirt extending downwardly from the peripheral edge of the base, wherein the skirt comprises at least one skirt protrusion extending circumferentially parallel to the peripheral edge of the base and radially inward from an inner surface of the skirt towards the center of the lid;   a pair of release tabs extending downwardly from the peripheral edge of the base, wherein the pair of release tabs each:
 are positioned within the perimeter of the skirt; 
 are separated circumferentially from the skirt; 
 are hingedly connected to the base; and 
 comprise a latching protrusion on the inner surface of the release tab which extends inwardly toward the center of the lid, wherein the latching protrusion is further from the peripheral edge of the base than the skirt protrusion is positioned. 
   
     
     
         2 . The lid of  claim 1 , wherein the distance that the latching protrusion extends inwardly toward the center of the lid is greater than the distance that the skirt protrusion extends inwardly toward the center of the lid. 
     
     
         3 . The lid of  claim 1 , wherein the latching protrusions define a first protrusion diameter, the at least one skirt protrusion defines a second protrusion diameter, and wherein the first protrusion diameter is smaller than the second protrusion diameter. 
     
     
         4 . The lid of  claim 1 , further comprising a circumferential ridge extending from a top side of the base spaced radially inward from the peripheral edge of the base. 
     
     
         5 . The lid of  claim 4 , wherein the circumferential ridge is adjacent the pair of release tabs. 
     
     
         6 . The lid of  claim 4 , wherein the circumferential ridge is spaced apart from the pair of release tabs. 
     
     
         7 . The lid of  claim 1 , wherein the skirt protrusion comprises a tip positioned at a first height and the latching protrusion comprises a tip positioned at a second height, wherein the first height and the second height are different. 
     
     
         8 . The lid of  claim 7 , wherein the tip of the skirt protrusion is positioned closer to the base than the tip of the latching protrusion. 
     
     
         9 . A container system comprising the lid of  claim 1  and a container, wherein the container comprising:
 a bottom; and 
 a side wall defining a rim circumscribing a top opening of the container body, wherein a rim diameter is larger than the first protrusion diameter, 
 wherein when the lid engages the container body, the latching protrusions of the pair of release tabs are positioned such that the rim of the container is adjacent the skirt, and the rim is retained between the latching protrusions and the base of the lid. 
 
     
     
         10 . The container system of  claim 9 , wherein the lid is configured to be removed from the container body by pressing the pair of release tabs towards the central axis of the lid and moving the lid along the central axis away from the container body. 
     
     
         11 . The container system of  claim 9 , wherein the latching protrusion defines an upper surface, wherein the upper surface extends from a corner formed with the inner surface of the skirt to a tip, such that the upper surface of the latching protrusion extends at an upward angle towards the base such that the tip is closer to the base than the corner. 
     
     
         12 . The container system of  claim 9 , wherein the skirt protrusion is configured to abut the rim of the container body. 
     
     
         13 . The container system of  claim 9 , further comprising a sealing compound positioned between the base and the rim. 
     
     
         14 . The lid of  claim 1 , wherein each release tab extends upwardly beyond the periphery of the base. 
     
     
         15 . The lid of  claim 1 , wherein the pair of release tabs are configured to be moved angularly by pressing an upwardly extending portion of each release tab towards one another. 
     
     
         16 . The lid of  claim 1 , wherein each latching protrusion extends from a bottom edge of the corresponding release tab. 
     
     
         17 . The lid of  claim 1 , wherein the latching protrusion and skirt protrusion are vertically offset from one another relative to peripheral edge of the base. 
     
     
         18 . The lid of  claim 1 , wherein the skirt protrusion is positioned at a first vertical distance from the base and the latching protrusion is positioned at a second vertical distance from the base, wherein the first vertical distance is less than the second vertical distance. 
     
     
         19 . The lid of  claim 1 , wherein the skirt protrusion extends circumferentially along the inner surface of the skirt in regions between the release tabs.