Patent ID: 8210497

Claim:
A double water-seal accumulator mounted in between a perfume bottle and a dispenser head of a perfume dispenser, comprising: a body unit, said body unit comprising a casing, said casing comprising a first accommodation chamber, a vertical guide groove located on an inside wall of said first accommodation chamber at one side, an adapter, said adapter comprising a top adapter chamber that accommodates a lower part of said casing, a transverse guide groove transversely located on an inner bottom wall of said top adapter chamber at one side in communication with said vertical guide groove of said casing, a vertical guide hole vertically upwardly extended from a bottom side of said adapter to said top adapter chamber in communication with said transverse guide groove, a stop flange transversely partially projecting into a top end of said vertical guide hole near said transverse guide groove, a spring member mounted in said vertical guide hole of said adapter and a stop ball supported on said spring member and forced by said spring member against said stop flange to block said vertical guide hole of said adapter; and a shaft unit, said shaft unit comprising a stepped shaft member rotatably mounted in said first accommodation chamber of said casing, said stepped shaft member comprising a angled hole axially downwardly extended from the topmost edge thereof and a transverse hole perpendicularly extended from a bottom end of said angled hole to the periphery of said stepped shaft member and a raised portion protruded from a bottom end edge of said stepped shaft member, said raised portion being forced to move said stop ball away from said stop flange in opening said vertical guide hole of said adapter when said stepped shaft member is rotated relative to said casing to a predetermined position where said transverse hole is kept in communication with said vertical guide groove.