The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 1990
Filed:
Sep. 19, 1986
Frederick G Kudert, Niles, IL (US);
Maurice G Latreille, Batavia, IL (US);
Robert J McHenry, St. Charles, IL (US);
George F Nahill, Crystal Lake, IL (US);
Henry Pfutzenreuter, III, Alta Loma, CA (US);
William A Tennant, Schaumburg, IL (US);
Thomas T Tung, Hoffman Estates, IL (US);
John Vella, Jr, Aurora, IL (US);
American National Can Company, Chicago, IL (US);
Abstract
A multi-coinjection nozzle injection molding machine and nozzle for co-injecting at least three streams of melt materials to form a multi-layer article. The nozzle includes at least two interfitting shells and a nozzle cap. At least one of the shells has a feed flow channel for flow of melt material which leads to an associated annular flow passageway. The shells have a symmetrical furstoconical shape and and form a fixed tapered, symmetrical, frustoconical portion of an annular passageway which terminates at a fixed, annular orifice for the flow of melt material therethrough.