Injection molding system utilizing primary and secondary resin f

Details Injection molding system utilizing primary and secondary resin f Injection molding system utilizing primary and secondary resin f

1995-03-10

1996-09-17

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to evacuate mold or provide controlled environment

2643288, 264328120, 264328130, 264572, 425557, 425573, B29C 4500

Patent

active

055566502

ABSTRACT:
A system for injection molding a hollow plastic article utilizing a secondary resin flow path which communicates one portion of an article-defining cavity with a second portion of the article-defining cavity. The second portion of the article-defining cavity is typically the hardest-to-fill area of the article-defining cavity. The secondary resin flow path is outside of the article-defining cavity and the normal flow of plastic resin.

REFERENCES:
patent: 5069858 (1991-12-01), Hendry
patent: 5098637 (1992-03-01), Hendry
patent: 5204050 (1993-04-01), Loren
patent: 5254306 (1993-10-01), Inada et al.
Article entitled: "Gas Assisted Injection Molding -- The New Thermoplastic Molding Technology for Exterior Body Panels" by Dr. Ken C. Rusch, presented at a meeting of the Society of Automotive Engineers, Mar. 2, 1989.

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