Patent ID: 8858215

Claim:
An injection blow molding nozzle for injecting a liquid comprising: an injector nozzle having a central axis, a bore for containing the liquid, a distal end having a controllable opening, a valve pin movably located in the bore of the injector nozzle to control the flow of a liquid through the distal end, a first cylindrical seating surface formed at the distal end, the first cylindrical seating surface being located on an outer surface of the nozzle, the first cylindrical seating surface being parallel to and having a central axis that is coincident with the central axis of the nozzle, and a second seating surface formed inwardly of the distal end, wherein the second seating surface comprises: a circular flange having a cylindrical surface located on a radially outer surface of the nozzle, the cylindrical surface being parallel to and having a central axis that is coincident with the central axis of the nozzle, and an annular gap located radially inward from the circular flange at a location between the cylindrical surface of the second seating surface and the bore, the gap configured to insulate against the conduction of heat from the bore to the cylindrical surface of the circular flange.