Patent ID: 8714965

Claim:
A heaterless injection nozzle defining an elongated resin delivery channel for supplying a hot resin from a hot manifold to a resin mold, said heaterless injection nozzle comprising: a structural outer body for coupling said nozzle to said resin manifold, said structural outer body having a length and being hollow to present an exterior surface and an interior surface; and a thermally conductive insert received in said hollow of said structural outer body, said insert having a length and defining at least a portion of said resin delivery channel, said insert extending along at least 80% of the length of said structural outer body, wherein an axial section of said insert has an outer diameter that is less than an inner diameter of a coaxial section of said outer body so as to present an insulating gap between said coaxial sections of said insert and said outer body, wherein said nozzle presents a forwardmost nozzle tip and said insulating gap extends proximate to said tip to present a forwardmost gap end, such that an axial distance between said nozzle tip and said forwardmost gap end is less than 10% of a total length of said gap, said nozzle having no external heater.