Patent ID: 6863261

Claim:
A stop for a dispensing valve, the dispensing valve having a surface defining an opening, the stop adapted to be moveable between a first position abutting the surface to seal the opening and a second position spaced from the surface to open the opening, the stop comprising: a base adapted to be connected to the valve; a sealing member being connected to the base by a hinge member, the sealing member having a frustoconical outer surface, the sealing member having a sealing surface at a distal end, the sealing member extending away from the base in a first position wherein the sealing surface faces generally away from the base, the sealing member being foldable at the hinge member to a second position wherein the sealing surface faces generally towards the base, a portion of the sealing member adapted to pass through the opening wherein the sealing surface is adapted to abut the valve surface; and, wherein the base has a peripheral surface, the base having a plurality of longitudinal ribs extending therefrom.