Patent ID: 7429170

Claim:
A machine for compression molding a closure shell having a base wall with an opening, which includes: a male mold section and a female mold section, said male and female mold sections having associated surfaces that oppose each other to form a cavity for compression molding the base wall, an annular bead on one of said surfaces for cooperating with the opposing other surface to compression mold a disk connected to the base wall by a thin frangible web, and means for separately stripping the disk and the shell from said mold so that said shell emerges from said machine with the opening formed in said base wall by removal of said disk, wherein said male mold section includes a mold core, a stripper sleeve surrounding said core for stripping the shell from said core, a stripper punch within said core for stripping the disk from said core, and means for moving said stripper sleeve and said stripper punch separately from each other with respect to said core.