Patent ID: 8079843
Filing Date: 2011-12-20
Classification: B29C,Y10S

Abstract:
1. A self-stripping forming insert comprising in combination: a stationary portion and a movable portion, said stationary portion having a top surface, a bottom surface, an inside surface, a spring mechanism and more than one vacuum passage, said movable portion having a top surface, a bottom surface, an outer edge, and a plurality of openings therethrough, said plurality of openings allowing a vacuum to be activated upon the top surface of the movable portion of the forming insert drawing molten plastic into and over the top surfaces of both the movable portion and the stationary portion of the forming insert to form a plastic component, said spring mechanism being internal to the stationary portion and being attached to the movable portion through the bottom surface of the movable portion, said spring mechanism being vacuum controlled and mechanically activated for moving the movable portion in an up and down motion relative to the bottom surface of the stationary portion, said spring mechanism being capable of being selectively activated to move relative to said stationary component to strip said movable portion from said plastic component.