Patent ID: 6120724
Filing Date: 2000-09-19
Classification: B29C

Abstract:
An apparatus for mold clamping, which comprises:stationary and movable platens with a mold half affixed to each reciprocably movable between a mold open and mold closed position and between a mold closed and mold open position;means for applying a mold stroke force to said movable platen to move the movable platen between the mold open and mold closed position, and between the mold closed and mold open position;means separate from said means for applying a mold stroke force for applying a mold break force to said movable platen in the mold closed position to break open the mold;wherein the means for applying a mold stroke force acts inside the means for applying a mold break force; andwherein the means for applying a mold stroke force includes a mold stroke cylinder with a mold stroke, and the means for applying a mold break force includes a mold break cylinder with a mold stroke, and wherein the mold stroke of the mold stroke cylinder is substantially larger than the mold stroke of the mold break cylinder.