Patent ID: 8215505

Claim:
A cap assembly that can be associated with a container storing a primary material, the cap assembly comprising: a lid fixed on a top of the container and having an exhausting portion projected upward; a cap main body detachably coupled to the exhausting portion of the lid and having a storage tube extending downward into the exhausting portion to define a storage chamber for storing a secondary material and a side portion which extends, circumferentially around an external surface of the exhausting portion and is releasably sealed thereto, the storage tube extending from an exterior upper portion to an interior rim positioned in the container; an inner cap body detachably coupled to the interior rim of the storage tube to thereby seal the secondary material in the storage chamber; and wherein the exhausting portion tightly contacts an outer surface of the storage tube and further includes a plurality of exhausting pieces formed as part of the lid which extend radially inward and into an exhausting space of the container and include bending portions for selectively separating the inner cap body from the storage tube when the cap main body is detached from the exhausting portion thereby allowing the secondary material to enter the container, wherein the bending portions are perpendicular to the side portion of the storage tube and run coextensively with and abut a lip of the inner cap body to thereby separate the inner cap body from the storage tube when the cap main body is detached.