LINERLESS CLOSURE WITH PRESSURE SEAL HOLDING FEATURE

摘要

A closure shell (10) has an end wall (14) and sidewall (16). The sidewall has an inside thread (18) for engagement to a thread formation of a confiner neck. The closure shell has a sealing flap (32) extending radially from the sidewall and an annular vertical member (44) extending from the end wall. The vertical member (44) has an inside diameter greater than the diameter of a seal finish of the container neck. The sealing flap (32) is sized and arranged to be pressed axially by the seal finish to the end wall (14), and radially pressed by the seal finish to the vertical member (44). A resilient element (45) is formed between the vertical member (44) and the sidewall (16) to radially press the vertical member (44) against the sealing flap (32) to effect a tight radial seal.