Patent ID: 7427373
Filing Date: 2008-09-23
Classification: B29C,B29L

Abstract:
1. A method for forming a closure device for a container comprising: providing a first mold component having a first annular groove, wherein the first annular groove is configured to form a skirt of the closure device; providing a plurality of ejector blades positioned within the first mold component, the blades including a notch thereon for forming a lug on an inner surface of the skirt of the closure device, the lug being back-locked relative to the first mold component; providing a second mold component configured to cooperate with the first mold component to define a mold cavity; introducing a moldable material into the mold cavity to form the closure device; and removing the closure device from the first mold component by moving the blades along a path defined by a plurality of tracks formed in the first mold component that is generally along a vertical axis of the first mold component, wherein the path includes a radially outward component, and the moving of the blades relieves the back-lock of the lug formed on the closure device.