Patent ID: 6092566
Filing Date: 2000-07-25
Classification: B65D

Abstract:
A double chamber aerosol container comprising:an outer container having a hollow interior and a ring-shaped neck portion extending radially inward from a surface of the hollow interior;an inner sack, whose volume is reducible according to reduction of contents, inserted in the hollow interior of the outer container to be mounted, the inner sack having an opening for containing the contents and a plurality of temporarily engaging portions extending from an outer surface of the inner sack radially more outward than the neck portion;a housing formed with a valve assembly and inserted in an inner periphery of the opening of the inner sack for constituting, together with the inner sack, a container for the contents; andan O-ring tightly secured to an outer periphery of the inner sack to engage the inner sack with the housing,wherein the inner sack and the outer container are temporarily fitted with each other by engagement of the temporarily engaging portions of the inner sack with the ring-shaped neck portion, wherein a filling gap for propellant is formed between the inner sack and the aerosol container while the inner sack and the outer container are temporarily fitted, and wherein the O-ring is airtightly engaged with the ring-shaped neck portion at a time of a permanent engagement in which the container for contents are inserted in the outer container.