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:
Feb. 25, 2003
Filed:
Aug. 17, 2001
Richard Nightingale, Woodstock, IL (US);
Abstract
A multilayer injection nozzle assembly, for use with an injection molding machine, to form a multilayer injection molded article comprising an inner nozzle, a middle nozzle and an outer nozzle. The inner nozzle has a first hole which communicates with a first channel in the inner nozzle and for receiving a flow of a first material from the injection molding machine. The inner nozzle also has a second hole which communicates with a second channel in the inner nozzle for receiving a flow of a second material from the injection molding machine. The first channel communicates with an inner and an outer channel in the inner nozzle, whereby the first material flows from the first channel into both the inner channel and the outer channel. The first material that flows into the inner channel will flow out of the nozzle assembly to form a first layer of the injection molded article and the material that flows into the outer channel will flow out of the nozzle assembly to form a second layer of the injection molded article.