Patent ID: 6840410

Claim:
A fluid dispensing valve for controlling the flow of a fluid through a through-conduit, the through-conduit having an inner surface, the fluid dispensing valve comprising: a retainer having an upwardly extending plug; a dispensing valve body bounded by an exterior surface, an interior surface, a valve perimeter, and a dispensing orifice perimeter, the dispensing valve body being shaped to fit within the through-conduit such that the dispensing orifice perimeter can fit securely around and seal against the upwardly extending plug and such that the valve perimeter can form a sealing relationship with the inner surface; and an exterior portion of the dispensing valve body, adjacent the valve perimeter, that is formed of a resilient material such that the dispensing valve body can change conformation from an initial conformation, wherein the valve perimeter is positioned securely around and sealed against the inner surface, to a venting conformation, wherein the valve perimeter is pushed out of sealing contact with the inner surface when the pressure against the exterior surface exceeds the pressure against the interior surface.