DYNAMIC AIR REPLENISHING DEVICE FOR LIQUID PRODUCT DISPENSER

摘要

The invention concerns an air replenishing device for a liquid product dispenser equipped with a reservoir (R) and at atmospheric pump (P) provided in particular with a cylindro-conical body (C) and a support flange (S) fixed on the reservoir (R) neck supported on a sealing joint enclosing said pump body. The invention is characterised in that it comprises a flat ring (1) forming a joint whereof the feed edge (10) is sealingly supported outwards beneath a truncated shoulder (20) borne by the pump body (C) or said flange (S) and is adapted to be deformed under the effect of an internal vacuum for air replenishment.