US Patent 7124907 Sippy straw cup

A closure for a container adapted to house a beverage therein, the closure comprising: (a) a cap having a mating feature adapted to interface with a corresponding feature of a container to secure the cap thereto, the cap also including an orifice therethrough and a channel therewithin, the channel being adapted to receive a sliding member therein; and (b) a flexible conduit adapted to be in fluid communication with a beverage within the container, wherein the sliding member is operative to position the flexible conduit between an open position and a closed position, where the open position enables fluid communication between a drinking end and an interior of the container.