Patent ID: 6186367
Filing Date: 2001-02-13
Classification: B05B,G01F

Abstract:
A metered liquid squeezable dispenser, which comprises:(a) a squeezable container having an open end and neck for dispensing liquid therefrom;(b) a trap chamber base for rotatable attachment of a trap chamber thereto, said base being adapted to fit and lock onto said neck of said squeezable container, said base having a dip tube orifice thereon and having a dip tube connected thereto and extending downwardly into said container, said base having an air inlet orifice located thereon;(c) a trap chamber rotatably connected to said trap chamber base, said trap chamber having sidewalls, a bottom, a top and a dispensing outlet, said trap chamber having a closed dispensing outlet pipe running from said dispensing outlet to said trap chamber bottom and having a shut-off valve arrangement at said bottom, said trap chamber having at least one metered dosage inlet pipe passing through the bottom of said trap chamber and extending upwardly therefrom for a predetermined height, said trap chamber having an air pipe passing through its bottom and extending upwardly therefrom for a height at least equal to the height of said at least one metered dosage inlet pipe;said dispensing outlet shut-off valve arrangement being adapted to be closed relative to said base when said at least one metered dosage inlet pipe of said trap chamber and said dip tube of said trap chamber base are in alignment with one another, and to be opened when said air inlet orifice of said trap chamber base and said air pipe of said trap chamber are aligned with one another;wherein said trap chamber base and said trap chamber are rotatable relative to one another and have a first position wherein said at least one metered dosage inlet pipe of said trap chamber and said dip tube of said trap chamber base are in alignment with one another and said air pipe of said chamber and said air inlet orifice of said trap chamber base are not in alignment with one another and said dispensing outlet shut-off valve arrangement is closed, and have a second position wherein said metered dosage inlet pipe of said trap chamber and said dip tube of said trap chamber base are not in alignment with one another and said air pipe of said chamber and said air inlet orifice of said trap chamber base are in alignment with one another and said dispensing outlet shut-off valve arrangement is open.