Patent ID: 8672156

Claim:
A cap comprising: a payload cap and a bottle cap, the payload cap and bottle cap defining a payload cavity; wherein said payload cap comprises a tube having an inner surface, an outer surface, and an end, and wherein said bottle cap comprises an upper portion, a lower wall, and support legs, wherein said support legs connect said upper portion to said lower wall; wherein said lower wall comprises a channel having a substantially U-shaped cross-section; wherein said channel comprises an outermost cylinder, an innermost cylinder, and a bottom; and wherein said channel extends along the entire perimeter of said lower wall; wherein said innermost cylinder comprises an upward extending flange; wherein said upward extending flange comprises an inner surface and an outer surface; and wherein the bottle cap is capable of forming a first seal with a bottle; a second seal disposed between the bottle cap and the payload cap; the first and second seal cooperating to prevent the contents of a bottle to which the cap is attached from escaping; a third seal disposed between the bottle cap and the payload cap and sealing the payload cavity; wherein the third seal is formed by inserting the end of the tube of the payload cap into the channel on the lower wall of the bottle cap such that the outer surface of the upward extending flange contacts the inner surface of the tube of the payload cap, and the inner surface of the upward extending flange contacts the contents of the payload cavity; wherein manipulation of the payload cap breaks the third seal such that the payload cavity is in communication with the bottle while maintaining the first and second seals.