Patent Number: 6,332,767

Title: Apparatus for injection molding multi-layer articles

Abstract: An injection nozzle device including multi-polymer injection nozzles comprising an assembly of shells, and having fixed, tapered passageways communicating with annular orifices close to a nozzle gate and to each other, and polymer flow balancing and directing means in the passageways in the form of concentric and eccentric chokes.

Inventors: Kudert; Frederick G. (Niles, IL), Latreille; Maurice G. (Batavia, IL), McHenry; Robert J. (St. Charles, IL), Nahill; George F. (Crystal Lake, IL), Pfutzenreuter, III; Henry (Alta Loma, CA), Tennant; William A. (Schaumburg, IL), Tung; Thomas T. (Hoffman Estates, IL), Vella, Jr.; John (Aurora, IL)

Assignee: Pechiney Emballage Flexible Europe

International Classification: B29C 45/16 (20060101); B29C 49/22 (20060101); B65D 1/22 (20060101); B65D 1/28 (20060101); B29C 045/22 ()

Expiration Date: 12/25/2018