Abstract: A dual-chambered drinking vessel includes a vessel body having at least one sidewall, a bottom and an open top defining an interior space, a flapper, and an actuator mechanism. The flapper is disposed within the interior space and is pivotally connected to an inner wall of the vessel body. The flapper is movable between a closed position in which the flapper divides the interior space into an upper chamber and a lower chamber and substantially prevents fluid communication between the upper chamber and the lower chamber, and an open position in which the upper chamber is in fluid communication with the lower chamber. The actuator mechanism is selectively actuatable to move the flapper from the closed position to the open position.

Abstract: A dual-chambered drinking vessel includes a vessel body having at least one sidewall, a bottom and an open top defining an interior space, a flapper, and an actuator mechanism. The flapper is disposed within the interior space and is pivotally connected to an inner wall of the vessel body. The flapper is movable between a closed position in which the flapper divides the interior space into an upper chamber and a lower chamber and substantially prevents fluid communication between the upper chamber and the lower chamber, and an open position in which the upper chamber is in fluid communication with the lower chamber. The actuator mechanism is selectively actuatable to move the flapper from the closed position to the open position.