Patent ID: 7021484
Filing Date: 2006-04-04
Classification: B65D,Y10S

Abstract:
1. An end seal device for sealing an open end of a metal package, comprising: a plastic membrane; and a metal ring stamped to have a flat inner cross-section having a central circular opening with a turned down and inwardly folded inner edge, and an elevation that forms a lower seat surrounded by a downwardly and inwardly facing peripheral rim whereby the metal ring can be crimped with the membrane, the membrane having a peripheral edge inserted into the seat for crimping to an edge of the package, the membrane having an annular recess internally adjacent the peripheral edge, the flat inner cross section of the metal ring with the turned down and inwardly folded inner edge being inserted in the annular recess, the annular recess being followed internally by a perimetral annular reinforcement, a pull ring and a first, lower triangular thinned line that is formed to break when the pull ring is pulled, wherein the pull ring breaks partly at a tilting triangular lid along a second, more solid thinned line, a restraint being provided in a region of the first thinned line.