Valve for dispensing two distinct liquids from an aerosol container

Claim 1

A dispensing valve for two distinct liquids from an aerosol container, comprising a main body having an inner hollow open at one end of the body, from the other end of which a first hollow extension projects and on which the inlet of a deformable vessel containable within said container can be fitted, a shaped disc overlying the main body at the opening of the hollow thereof, a wall projecting outwardly of the main body and by which said disc defines a first chamber communicating with the hollow of the main body through at least one duct, a resilient seal between the disc and the main body, a bottom capable of being secured to the inlet of an aerosol container and rigidly bonding the disc to the seal and main body, a second tubular extension projecting laterally of the main body and one end of which opens on said first chamber and on the other end of which a drawing tube insertable in said container is fitted, a plunger having an enlarged head located within the hollow of the main body, a stem extending therefrom and being accommodated and movable within the bore of the first extension, this bore having a cross-sectional area larger than that of the plunger stem, a valve stem having an end thereof within the hollow of the main body and the other end thereof outwardly extending through a hole of said seal and a hole of said disc, and a second chamber provided between The outer surface of the valve stem, seal and disc, an annular flange extending from the stem portion within the hollow of the main body, this flange being acted upon by a spring accommodated within the hollow of said main body and which, under valve inoperative conditions, urges the flange on the seal pressing it against the disc, closing said duct and separating said first chamber, second chamber and hollow of the main body from one another, in the valve stem there being formed at least two longitudinal conduits open adjacent the free end of said stem and at each of which, in the stem, at least one small hole is provided, these small holes being located above said valve stem flange and being spaced apart from one another along the stem so that, under the conditions at which the valve stem is held downwardly pressed against the action of said spring, one of said small holes opens into the hollow of the main body and the other small hole opens into said second chamber.