Distribution system for use in bottle to distribute e.g. lotion, contained in container for cosmetic use, has spring body deformed elastically to assist return of deformable membrane to stable state when membrane is in deformed state

摘要

The system has a membrane (13) deformed reversibly by pressure of product in a distribution chamber (14) from a stable closing state in which an upper opening (16) is placed in sealing contact around a distal end (11a) of punch (11) to a deformed opening state. A spring body (23) has an upper span (24) drilled opposite to the opening. The body is arranged to exert effort of plating an upper edge (15) on the end by the span when the membrane is in deformed state. The body is deformed elastically to assist return of the membrane to the stable state when the membrane is in the deformed state.