Patent ID: 6916168

Claim:
A cooling tube for cooling a portion of an injection molded article received therein, the cooling tube comprising: an annular tube body, formed by extrusion, having an inside surface, an outside surface, and a plurality of longitudinally extensive cooling channels enclosed therebetween; at least one connecting channel configured in the tube body to interconnect the plurality of cooling channels into at least one cooling circuit; a seal configured at a top and a distal end of tube body for enclosing the cooling circuit; a coolant inlet channel disposed in the tube body between one of the surfaces thereon and a first end of the cooling circuit; a coolant outlet channel disposed in the tube body between one of the surfaces thereon and a second end of the cooling circuit; a distal end portion of the tube body being configured to receive a plug member therein; a portion of the inside surface of the tube body and an end surface configured on the plug member being configured to cooperate in providing a profiled cavity that substantially conforms with an outer surface profile of the portion of the molded article.