Patent ID: 6866170

Claim:
A liquid flow regulating device for a bottle having a chamber and an aperture communicating with the chamber, comprising: a. cage located in the aperture of the bottle, said cage defining an internal passageway, communicating with the chamber of the bottle, and an exit, said cage further including an open web portion, and a closed wall portion adjacent said open web portion, said exit being located adjacent said closed wall portion; b. a floating element, said floating element being buoyant in the liquid, said floating element further being located within the passageway of said cage to travel therealong, said floating element being formed to be unable to travel though said exit and being capable of obstructing the flow of liquid from said bottle when positioned at said cage exit adjacent the spout passage, said floating element being further capable of floating free of said exit of said passageway when the bottle is oriented in a certain position; and c. a vent located in said closed wall portion for the passage of liquid from the chamber of said bottle.