Patents Assigned to Penn-Erie Manufacturing Company
  • Injection molding die system
    Patent number: 4023770
    Abstract: A transfer structure for a stacked injection molding die comprising:Two transfer tubes connected to a stack molding die and connected together by a knuckle joint so that molten plastic can flow from the runner in one of the parts of the stack molding die through the transfer tubes to the other dies, yet allow the die members to move freely toward and away from each other.
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: May 17, 1977
    Assignee: Penn-Erie Manufacturing Company
    Inventor: Anthony Z. Sedziak