Patent ID: 7175413

Claim:
An injection mold for making elastomeric dispensing valves, which includes: a first mold section having a core plate with at least one core extending from said core plate and a stripper plate having at least one core passage in which said at least one core is slidably received, and a second mold section having a cavity plate with at least one resin passage for feeding elastomeric material through said cavity plate, at least one of said first and second mold sections being movable with respect to the other between an open position in which said first and second mold sections are spaced from each other, and a closed position in which said first and second mold sections are in facing engagement to form at least one mold cavity coupled to said at least one resin passage in said second mold section for injection molding a dispensing valve between said cavity plate on said second mold section, and said stripper plate and an end of said at least one core on said first mold section, said stripper plate having at least one vacuum passage for selective application of vacuum to said at least one mold cavity and to a dispensing valve molded in said cavity.