Patent ID: 6974024

Claim:
A cap device for engagement with a bottle, said cap device comprising: a valve unit closely and removably fitted over a mouth of said bottle; an additive containing unit externally and removably engaging with the valve unit, said additive containing unit defining a cavity therein for containing an additive; wherein the valve unit further comprises a cap body having a lower threaded inner surface and an upper threaded inner surface; said lower threaded surface being removably engaged with said mouth of the bottle; a conical valve part formed at an intermediate portion in the cap body; a funnel part provided at a lower portion of the additive containing unit, said additive containing unit having a threaded lower portion to removably engage with the upper threaded inner surface of the cap body; wherein an opening formed at the lower end of the funnel part is closed by the conical valve part when said additive containing unit is tightened completely onto said cap body; and, wherein said lower end of the funnel separates from said conical valve part when said additive containing unit is being removed from said cap body.