Cover ring having a slanted part and manufacturing process

摘要

A container (20) has a closure (1) with a lever pull-ring opener. The lever ring has a peripheral flat strip (3a) running radially outwards to the lever ring rim (2). The rim and flat strip are linked by a groove (N1). The flat strip acts as a sealing zone and extends relative to the closure (1) plane at an angle alpha greater than zero.