Two-step molding of liner components for a closure
AssigneeAlena Closure Systems International
InventorDavid L. Cerny
Life of this patent
Estimating the term…
Abstract
A simulated promotional pocket for a closure and method for manufacture thereof has a cup-shaped simulated promotional pocket molded within the closure to at least partially encapsulate anchor tabs extending from a liner pre-molded to an inside of the top wall of the closure. The anchor tabs are arranged in a target formation of concentric spaced-apart circles and are bent over outwardly during pressure molding of the cup-shaped promotional pocket to provide resistance to separation of the promotional pocket and the liner. The simulated promotional pocket having an open end is configured to be identical in appearance to an actual promotional compartment which holds a promotional item of value thereon, when viewed from outside a container closed by the closure.
Claims7
A method of molding a component inside a closure, comprising the steps of:
- providing within said closure a plurality of tabs extending substantially perpendicularly from an inside facing wall of said closure;
- depositing a pellet of molten plastic onto said tabs;
- compression molding said component from said pellet onto said inside facing wall by exerting pressure on said pellet and simultaneously exerting pressure onto said tabs to bend said tabs over to a non-vertical orientation with respect to said inside facing wall, said component having a portion which at least partially encapsulates said tabs to anchor said component to said inside facing wall.
Dependencies are inferred from the claim text.