Stopper having interrupted threads

Abstract

The invention is a screw type plastic stopper, comprising a closure shell and a tamper band to be secured on a bottle neck. The stopper further includes a weakness line having bridges, that separably link a bottom edge of the closure shell to a top edge of the tamper band, and at least one inner thread that is located and extends along an inner wall of the stopper. The inner thread is interrupted along the weakness line and comprises a top part located at the closure shell over the weakness line and a bottom part located at the tamper band under the weakness line.

The invention claimed is: 
     
         1 . A screw type plastic stopper, comprising
 a closure shell and a tamper band to be secured on a bottle neck;   a weakness line with bridges, where the bridges separably link a bottom edge of the closure shell and a top edge of the tamper band;   at least one inner thread, the inner thread is located and extends along an inner wall of the stopper;   wherein the inner thread is interrupted along the weakness line and comprises a top part located at the closure shell over the weakness line and a bottom part located at the tamper band under the weakness line.   
     
     
         2 . Screw type plastic stopper according to  claim 1 , wherein the weakness line is located into a middle area of the stopper. 
     
     
         3 . Screw type plastic stopper according to  claim 2 , wherein the tamper band comprises a top inner bead, the top inner bead is located at the top of the tamper band, over the bottom part of the inner thread. 
     
     
         4 . Screw type plastic stopper according to  claim 1 , further comprising a hinge that extends through the weakness line and pivotably links the bottom edge of the closure shell and the top edge of the tamper band, and wherein the inner thread is interrupted along the hinge. 
     
     
         5 . Screw type stopper according to  claim 4 , wherein
 the top part of the inner thread comprises at least one locking segment;   the top part of the inner thread is interrupted at each end of the at least one locking segment.   
     
     
         6 . Screw type stopper according to  claim 5 , wherein one of the at least one locking segment is diametrically located relative to the hinge. 
     
     
         7 . A bottle to be closed by a screw type stopper according to  claim 1 , comprising
 a body and a neck, the neck being top located relative to the body and comprises an aperture to be closed by the stopper;   the neck being of the screw type and comprising at least an outer thread, the outer thread is located and extends along a peripheral wall of the neck; and   the outer thread is complementary shaped relative to the inner thread of the screw type stopper;   wherein   the outer thread continuously extends along the peripheral wall of the neck; and   the outer thread cooperates by screwing and by unscrewing with the top part and the bottom part of the inner thread of the stopper.   
     
     
         8 . A bottle, comprising
 a body and a neck, the neck is top located relative to the body;   the neck being of the screw type and comprises at least an outer thread, the outer thread is located and extends along a peripheral wall of the neck;   the outer thread is complementary shaped relative to the inner thread of a screw type stopper according to  claim 1 ;   wherein   the outer thread is interrupted and comprise a top portion and a bottom portion; and   when screwing the outer thread cooperates with the top part and the bottom part of the inner thread of the stopper;   when unscrewing the bottom portion cooperates with the bottom part of the inner thread and the top portion cooperates with the top part of the inner thread of the stopper.   
     
     
         9 . The bottle according to  claim 8 , wherein the neck comprises a bottom outer ring, the bottom outer ring is located under the bottom portion of the thread and is complementary shaped relative to the bottom inner bead of the screw type stopper according to  claim 3 , in order to bottom lock the tamper band relative to the neck. 
     
     
         10 . The bottle according to  claim 9 , wherein the neck further comprises a top outer ring, the top outer ring is located over the bottom portion of the outer thread and is complementary shaped relative to the top inner bead of the screw type stopper, in order to top lock the tamper band relative to the neck. 
     
     
         11 . The bottle according to  claim 9 , wherein the top portion of the outer thread is interrupted along at least one gap, the at least one gap is complementary dimensioned and located relative to the locking segment of the screw type stopper according to  claim 5 .