Patent ID: 9676530
Date: 2017-06-13
CPC Classifications: A47G,B65D

Claim:
1. A storage device comprising: a receptacle comprising an internal surface; and, a movable closure member, the closure member comprising: a seal about a periphery of the closure member sealing the closure member against the internal surface of the receptacle, and a valve within the closure member periphery, wherein the closure member is adapted to move within the receptacle with the closure member periphery substantially continually in contact with the internal surface of the receptacle, and wherein, when in an open position, the valve allows flow of fluid from within the receptacle through the valve, and when in a closed position, the valve prevents flow of liquid from within the receptacle; wherein the receptacle comprises a substantially closed lower end; and, the device being characterized in that the movable closure member comprises an aperture and the valve comprises a blocking member that, in the closed position, is received within the aperture and closes the aperture to the passage of fluid, and in that the blocking member comprises a float that, when the float comes into contact with a liquid contained within the receptacle, floats thereupon and blocks the aperture of the closure member.