Patent attributes
A deflation valve for use with a compression bag includes a base member and a lid member attached to the base member. The base member includes a deflation port and an inner cylindrical portion. The lid member includes a valve member and an outer cylindrical portion surrounding the valve member. The outer cylindrical portion includes an air passage portion and is arranged outwardly of the inner cylindrical portion. Suction of the deflation port causes an upward movement of the lid member to open the deflation port, imparting a negative pressure to the compression bag via the air passage portion and the deflation port. Stopping of the suction causes a downward movement of the lid member due to the negative pressure to close the deflation port with the valve member. The air passage portion serves as a finger hooking portion when opening the deflation port.
