Patent ID: 7887731
Filing Date: 2011-02-15
Classification: B29C,B29K,B29L,B65D

Abstract:
1. A method of molding a container closure providing selective fluid communication between an interior of a fluid container and an exterior environment, the method comprising: configuring and closing a mold having a first cavity negatively defining a base of a container closure that includes a spout and a container mount, where said spout and container mount cooperate to define a conduit therethrough in fluid communication with an outlet orifice of said spout; injecting a first material into said first cavity to mold said base; cooling said first material in said mold to impart at least minimal rigidity to said base; reconfiguring at least a portion of said mold to define a second cavity adjacent to said first material, said second cavity negatively defining a cap covering said outlet orifice of said spout; injecting a second material into said second cavity to mold said cap in a closed position over said outlet orifice; providing a sealed fluidic interface between said second material of said cap and said first material of said spout outlet orifice when said cap is in said closed position, when said cap is in said closed position said sealed fluidic interface exhibits an untamper evident indicia visually apparent to the user; cooling said second material in said mold to impart at least minimal rigidity to said cap; removing said base and integrally formed cap from said mold; wherein breaking said sealed fluidic interface and opening said spout outlet orifice by repositioning said cap from said closed position to an open position; and wherein repositioning said cap from said open position to said closed position, when said cap is returned to said closed position after being previously opened said sealed fluidic interface exhibits a tamper evident indicia visually apparent to the user indicating that said sealed fluidic interface has been previously broken.