Container closure assembly

Abstract

An assembly comprising a container and a closure. The container has a neck, the neck having an interior surface and an exterior surface, the exterior surface having (a) a thread(s), (b) at least two sets of sloping teeth. The closure has (a) a top wall; (b) a side wall having an interior surface, an exterior surface, an upper portion, and a lower portion; (c) a thread(s) on the interior surface of the side wall; (d) a tamper-indicating band having an interior surface, an exterior surface, an upper edge, and a lower edge, the upper edge of said tamper indicating band attached to the lower portion of the side wall by a plurality of rupturable bridges; and (e) a plurality of tabs attached to the lower edge of the tamper-indicating band, each of the tabs having an interior surface and an exterior surface, the exterior surface of each of the tabs bearing at least one sloping tooth, each of the tabs being foldable to contact the interior surface of the tamper-indicating band, whereby, when folded, the at least one sloping tooth on each tab faces toward the axis of the side wall. When the tabs are folded, the sloping teeth on the tabs of the closure, partially engage with the sloping teeth on the exterior surface of the neck of the container.

1 . An assembly comprising a container and a closure, said container having a neck, said neck having an interior surface and an exterior surface, said exterior surface having (a) a thread(s), (b) at least two sets of sloping teeth, said closure having (a) a top wall; (b) a side wall having an interior surface, an exterior surface, an upper portion, and a lower portion; (c) a thread(s) on the interior surface of said side wall; (d) a tamper-indicating band having an interior surface, an exterior surface, an upper edge, and a lower edge, the upper edge of said tamper indicating band attached to the lower portion of said side wall by a plurality of rupturable bridges; and (e) a plurality of tabs attached to the lower edge of the tamper-indicating band, each of the tabs having an interior surface and an exterior surface, the exterior surface of each of the tabs bearing at least one sloping tooth, each of the tabs being foldable to contact the interior surface of the tamper-indicating band, whereby, when folded, the at least one sloping tooth on each tab faces toward the axis of the side wall, wherein the sloping teeth on the tabs of the closure, when the tabs are folded, partially engage with sloping teeth on the exterior surface of the neck of the container. 
   
   
       2 . The assembly of  claim 1 , wherein the sloping teeth on the exterior surface of the neck of the container are offset from the sloping teeth on the tabs of the closure to a sufficient degree that the sloping teeth on the tabs of the closure do not lock with the sloping teeth on the exterior surface of the neck of the container, thereby enabling the closure to be rotated about the neck of the container. 
   
   
       3 . The assembly of  claim 1 , wherein said thread(s) are inclined sufficiently to enable rotation of the closure to bring about serial rupture of the rupturable bridges of the closure. 
   
   
       4 . The assembly of  claim 1 , wherein said neck of said container contains two sets of sloping teeth. 
   
   
       5 . The assembly of  claim 1 , wherein each set of sloping teeth comprises at least two teeth. 
   
   
       6 . The assembly of  claim 1 , further including a connecting bridge between two adjacent tabs. 
   
   
       7 . The closure of  claim 1 , wherein each tab bears a plurality of sloping teeth on the exterior surface thereof. 
   
   
       8 . The closure of  claim 1 , further having a groove formed in the interior surface of said side wall. 
   
   
       9 . The closure of  claim 4 , wherein a disk is included in said groove.