Patents Assigned to Concor Tool & Machine, Inc.
  • Grooving apparatus for injection molding machine barrel
    Patent number: 5599224
    Abstract: This invention relates to an apparatus and method to modify molding machines for producing colored plastic parts using coloring liquid. The apparatus is inserted into and moved longitudinally along an injection molding machine barrel for forming a groove of varying shape and depth in the lower portion of the barrel.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: February 4, 1997
    Assignee: Concor Tool & Machine, Inc.
    Inventor: Randy L. Conner