Attachment device of pump or valve to recipient neck, has annular plate which moves axially and upwardly to remove skirt from neck by pressing lower surface against upper end of neck

摘要

A ring (10) has a skirt (101) which cooperates with the neck of a recipient to attach a distribution device e.g. pump or valve in a receiving portion (103). An annular plate (102) extending radially from the receiving portion moves axially and upwardly to remove skirt from the neck by pressing the lower surface (105) against the upper end of the neck.