Patent ID: 6530770
Filing Date: 2003-03-11
Classification: B29C

Abstract:
A mold assembly comprising a nozzle tip locked in a nozzle tip housing by a locking member, said housing including a hollow stem with an open mouth and with a threaded socket at opposite ends of said stem, said stem further including a wall recess within said stem, said nozzle tip having an outer end with an apex head and a plastic feed outlet through said head, an inner end with a threaded base which threads into said threaded socket of said housing and a shoulder projecting radially from a side surface of said nozzle tip between said head and said base of said nozzle tip, said locking member comprising a ring member having both an internal and an external shoulder, the external shoulder of the locking member locating within said wall recess of said stem around said nozzle tip to trap said locking member in said housing and said internal shoulder of said locking member projecting inwardly over said shoulder on said nozzle tip inwardly along said nozzle tip at a location away from said apex head of said nozzle tip to block said nozzle tip against unthreading from said nozzle tip housing.