LUKKEFLENS AV PLAST FOR TERMOPLASTISK BINDING TIL EN PLASTBEHOLDERAAPNING

摘要

A closure flange molded of synthetic plastic material has an upstanding cylindrical neck with an internally threaded portion for reception of a closure plug. The lower portion of the cylindrical neck is surrounded by an annular collar constructed to facilitate bonding of the flange about a plastic container wall opening while the uppermost end of the cylindrical neck is formed to receive an overlying cap seal.