Patent ID: 6592797
Filing Date: 2003-07-15
Classification: B29C,B29L,Y10S

Abstract:
A method for forming an article of manufacture having interiorly disposed threads comprising the steps of:providing a first mold half having a surface for molding said molded article; providing a second mold half having a surface for molding said molded article wherein said second mold surface is comprised of at least a translationally movable component that is at least partially threaded; engaging said first mold half with said second mold half into a closed-mold configuration whereby a mold cavity is defined between said first mold half surface and said second mold half surface; injecting plastic material into said mold cavity; translationally displacing said movable component of said second mold surface while said first mold half is engaged with said second mold half in a closed-mold configuration; providing means for at least partial rotational disengagement of said movable component of said second mold surface from the molded article after said movable component of said second mold surface has been translationally retracted from engagement with the first mold surface and while said first mold half is engaged with said second mold half in a closed-mold configuration; disengaging said first mold half from said second mold half into an open-mold configuration; and ejecting said molded article from the mold cavity.