Patent ID: 8714513

Claim:
A mold insert assembly comprising: a first driving member configured to move between a retracting position and an extending position; a plurality of first-segment members positioned to engage the first driving member and configured to move between a first retracted position and a first extended position when the first driving member moves between the retracting position and the extending position, respectively; and a plurality of second-segment members disposed proximate the plurality of first-segment members and configured to move between a second refracted position and a second extended position when the first driving member moves between the retracting position and the extending position, respectively, wherein the plurality of first-segment members and the plurality of second-segment members cooperate to form a substantially liquid-tight periphery when the first driving member is in the extending position and wherein the plurality of first-segment members and the plurality of second-segment members are configured to move towards the first retracted position and the second refracted position, respectively when the first driving member moves towards the retracting position, and wherein each first-segment member has a first longitudinal end having a first configuration, wherein each second-segment member has a second longitudinal end having a second configuration, the second configuration differing from the first configuration in a manner that causes each first-segment member to move towards the first retracted position prior to movement by each second-segment member towards the second retracted position.