Patent ID: 7691315
Filing Date: 2010-04-06
Classification: A01K,B29C

Abstract:
1. A method of molding resin, comprising: providing a mold having a plurality of cavities, wherein said mold includes two mold parts which may be opened and closed; providing a resin and plasticating said resin in a heated injection molding machine; providing a runner system which fluidly connects said injection molding machine with a first cavity through a gate; providing a sub-gate between said first cavity and a second cavity, the first and second cavity located in series along a common axial centerline, the first and second cavities being like-shaped; wherein said first cavity has a width “w injecting said resin through said runner system and into said first cavity at a pressure in the range of about 1000 psi to about 2500 psi to substantially fill said first cavity and continuing to inject resin through said sub-gate into said second cavity; and cooling said resin thereby forming a molded resin.