PERFECCIONAMIENTOS INTRODUCIDOS EN UN RECIPIENTE JUNTO CON UN APARATO PARA SUJETAR UN MIEMBRO DE CIERRE CIRCULAR EN EL MISMO.

摘要

Plastic containers include a shell an open end of which is sealably closed by a closure member having a peripheral hinge portion secured to the shell and so inner expanse which may be bowed axially of the shell. The closure member is unfolding or deformable in drop testing such that sealable closure of the shell is maintained.