Patent ID: 7740473

Claim:
An apparatus for injection molding, the apparatus comprising: a first mold comprising a first cavity surface; a second mold comprising: a heating plate comprising a first surface, a second surface facing away from the first surface, and at least one channel arranged in a body of the heating plate between the first and second surfaces, wherein the first surface comprises a second cavity surface opposing the first cavity surface, wherein the first and second cavity surfaces in combination are configured to define a molding cavity together with or without additional surfaces, a plurality of heating extensions passing through the at least one channel and configured to generate heat for heating the heating plate, and a cooling plate comprising a cooling surface facing the heating plate; and wherein the heating plate is movable relative to the cooling plate between a first position and a second position, wherein the second surface contacts the cooling surface in the first position whereas the second surface is separated from the cooling surface in the second position.