Resealable closures

摘要

A closure comprising a solid color spout and a transparent overcap is adapted to be sealed to a container neck by means of a double-sided foil. The overcap has a depending valve, which engages with the spout to hold these components together prior to assembly to the container. The spout has a flange adapted to seat on a rim of the container neck and an annular wall that is received within the container neck. The foil is welded to the flange and is also used to weld the closure to a rim of a container neck of standard threaded design. The overcap can screw to an external thread on the container neck. The primary ex-factory seal is provided by welding the assembled closure to the neck. The secondary seal is provided by the engagement of the overcap valve with the spout. The invention discloses an improved method of assembly.

主权项

1. A closure comprising
a spout, an overcap, and a double sided foil, the closure being adapted to be sealed to a container neck by means of the double sided foil, wherein the overcap has a depending valve which sealingly engages with the spout, and wherein the spout comprises: a flange covered by the double sided foil, the double sided foil adapted to seat on a rim of the container neck, and a wall adapted to be received within the container neck, the wall terminating in a flange depending tapered edge, the wall having a free edge forming one side of a slot having the flange at its base and retaining the double sided foil in the slot.