Norfield Corporation

James F Ronayne

A platen capable of being heated is disclosed wherein fluid flow zones containing heat exchange channels are individually sealed. The heat exchange channels in the platen are connected by a connecting channel sized so that the distance from the connecting channel to a vent passage or a vented opening in the platen is not less than the distance from the vent passage or vented opening to the heat exchange channel. The sealing of the fluid flow zones is accomplished with plugs and end plates which are welded to the platen and then welded together with a fillet weld.

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Fishkill, NY, United States of America

James F Ronayne