Patent ID: 6383428
Filing Date: 2002-05-07
Classification: B29C

Abstract:
Method for the preparation of a molded article which comprises:providing a mold cavity; placing a template over said mold cavity which includes a series of orifices which extend over substantially the entire surface of the mold cavity; passing molten plastic through said orifices in a pattern corresponding to the shape of the article to be molded; subsequently forming said molten plastic into a molded article having the shape of the mold cavity; and including placing a gate control plate adjacent said template, said gate control plate having closed areas and open areas, moving said gate control plate into a first closed position wherein the closed areas block the orifices and prevent molten plastic from passing therethrough, and moving said gate control plate into a second open position wherein the open areas register with the orifices and allow said passing of said molten plastic by flow through said orifices.