Patent ID: 6616012
Filing Date: 2003-09-09
Classification: B65D

Abstract:
A fluid dispensing valve for controlling the flow of a fluid through a cap and a retainer, the cap having a spout that defines a through-conduit having a top opening and a bottom opening, the through-conduit having an interior spout surface that terminates in an inner spout flange, the retainer having a retainer perimeter, at least one flow aperture through the retainer, and an upwardly extending plug, the retainer perimeter being adapted to engage the spout adjacent the bottom opening, the fluid dispensing valve comprising:a dispensing valve body bounded by an exterior surface, an interior surface, a valve perimeter, and a dispensing orifice perimeter, the dispensing orifice perimeter being shaped to fit securely around and seal against the upwardly extending plug, the valve perimeter being shaped to fit within the spout and form a sealing relationship with the interior spout surface, and an interior portion of the dispensing valve body, adjacent the dispensing orifice perimeter, being formed of a resilient material that can change conformation from a sealed conformation, wherein the dispensing orifice perimeter is positioned securely around and sealed against the upwardly extending plug, to a dispensing conformation, wherein the dispensing orifice perimeter is lifted out of sealing contact with the upwardly extending plug, when the pressure against the interior surface exceeds the pressure against the exterior surface; and wherein the dispensing valve body further includes an exterior portion, adjacent the valve perimeter, that is formed of a resilient material that can change conformation from an initial conformation, wherein the valve positioned securely around and sealed against the interior spout surface, to a venting conformation, wherein the valve perimeter in pushed out of sealing contact with the interior spout surface, when the pressure against the interior surface exceeds the pressure against the interior surface.