Patent ID: 8684203
Filing Date: 2014-04-01
Classification: B65D

Abstract:
1. A screw closure ( 10 ) comprising a screw cap ( 1 ) and a tamperproof band ( 5 ), wherein the screw cap ( 1 ) has a head plate ( 2 ) with a cylindrical cap peripheral wall portion ( 3 ) provided with a female thread ( 4 ) and wherein the tamperproof band ( 5 ) has a flexible band ( 6 ), includes radially inwardly protruding projections and is connected to the lower edge of the cap peripheral wall portion ( 3 ) by way of one or more easily tearable elements ( 7 ), wherein the flexible band ( 6 ) is in the form of a continuously peripherally extending flexible band which distributed over its periphery has a plurality of more easily stretchable portions ( 8 ) and therebetween relatively less easily stretchable portions ( 9 ), and wherein the more easily stretchable portions ( 8 ) are of a smaller wall cross-section, than the less easily stretchable portions ( 9 ), characterised in that the portions with the larger wall cross-section are of an upwardly enlarging, wedge-shaped cross-section, wherein the upper edge of the folded-over flexible band includes the farthest radially inwardly protruding projections ( 11 ).