Patent ID: 8512028

Claim:
An injection blow molding system for injection molding a resin into a plurality of parisons and blow molding said parisons into a plurality of molded articles, said injection blow molding system comprising: an injection station for injection molding said resin into said parisons, a blowing station for blow molding said parisons into said molded articles; and an indexing head for transferring said parisons from said injection station to said blowing station, wherein said injection station comprises first and second neck mold halves shiftable between an open position and a closed position, wherein said first and second neck mold halves present respective first and second neck-forming surfaces for cooperatively defining the exterior shape of the necks of said parisons when said neck mold halves are in said closed position, wherein each of said neck mold halves at least partly defines a contoured heat transfer channel associated with each of said neck-forming surfaces, wherein each of said contoured heat transfer channels includes a inner face having a shape that substantially corresponds to the shape of said neck-forming surface with which it is associated, wherein each of said first and second neck mold halves defines at least one supply channel and at least one return channel, wherein each of said contoured heat transfer channels is connected in fluid-flow communication with one of said supply channels and one of said return channels, wherein said supply and return channels are connected to generally opposite ends of the contoured heat transfer channel with which they are associated, wherein said supply and return heat transfer channels are substantially linear, wherein said supply and return channels extend from said contoured heat transfer channel in a direction that is generally away from said neck-forming surface with which the contoured heat transfer channel is associated.