Patent ID: 7654419

Claim:
A spout for a dispenser, comprising: a distal end; a bore in the spout defining a discharge passage through the spout; a second bore at the distal end of the spout, wherein the second bore comprises a greater diameter than the bore through the spout; and an annular wall between the bore and the second bore; a discharge valve assembly positioned in the distal end of the spout, wherein the discharge valve assembly further comprises: a valve adaptor, comprising: an axial passage; a circular deflector perpendicular to the axial passage; lateral passageways adjacent the circular deflector and in communication with the axial passage; an annular rib engaging the annular wall; and an annular groove adjacent the annular rib; a unitary valve, comprising: an annular ring disposed in the annular groove of the valve adaptor and between the valve adaptor and a surface of the second bore; a wall at an outlet end of the unitary valve; an expandable circular skirt wall extending from the annular ring to the wall; and at least one outlet slit in the wall.