| 摘要 |
A storage device comprising a receptacle 12 and a movable closure member 22, the closure member comprising a seal about its periphery, for positioning against the inside of the receptacle and the closure members periphery is substantially continually in contact with the internal surface of the receptacle, and a valve 32, wherein, when in an open position, the valve allows flow of fluid, gas or air, 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 is substantially closed at its lower end, characterized in that the movable closure member comprises an aperture and the valve comprises a blocking member that, in a closed position, is received within the aperture and closes that aperture to the passage of fluid and in that the blocking member comprises a float 38 that, when it comes into contact with liquid contained with the receptacle, floats thereupon and blocks the aperture of the closure member. |
