Patent attributes
A series of injection molding nozzles, one series having a two-piece nozzle (for use with a conventional nozzle housing), another series having a three-piece nozzle (for use with a conventional nozzle housing), and yet another series having a two-piece nozzle (for use with modified nozzle housing). The two-piece nozzles include either a nozzle insert with a sealing surrounding piece portions (when used with a conventional nozzle housing), or an inner insert with an outer insert portions (when used with modified nozzle housings). The three-piece nozzles include an inner insert, an outer insert and a sealing surrounding piece portions. The modified nozzle housings include a press-fit frontal insert. The nozzles form multiple seals with the nozzle housing and reduce heat loss by unique geometric and material combinations.
