Patent ID: 9550612
Date: 2017-01-24
CPC Classifications: B65D

Claim:
1. A closure for mounting to a container having an opening surrounded by a rim, the closure being of unitary construction and comprising: an external peripheral wall that is connected via an annular land to an internal wall that is inset from and that faces and is surrounded by the external wall to form a channel therebetween for receiving the rim, the land defining an outer upper face of the closure in use and sealing inwardly against an end of the rim when the closure is mounted to the container, and a compartment in which material can be positioned, the compartment comprising a wall that is located within a recess defined in the closure, wherein a periphery of the compartment wall is connected to the internal wall such that the internal wall forms a side wall of the compartment, whereby the compartment and compartment wall are located within the container opening when the closure is mounted thereto, and with the compartment wall comprising a first region that is surrounded by a second bellows-like region adapted to facilitate displacement of the first region from a first position to a second position to cause the material to be released from the compartment into the container.