EXHAUST PORT STRUCTURE OF LIQUID CONTAINER

摘要

PROBLEM TO BE SOLVED: To surely perform closing action by a ball to approximately completely close with little liquid leakage in an exhaust port of a liquid container equipped with the ball to be closed by outflow action of a liquid in addition to a normal valve. SOLUTION: The liquid container comprises a container body 1, the tubular exhaust port 18 provided on the bottom 16 thereof, a pipe 20 with the valve 21 connected with the port 18 and the ball 4 for closing the port 18 suspended. A gasket 3 having an aperture 31 with a diameter slightly smaller than that of the port 18 is provided at an end of the port 18. The aperture periphery 32 of the gasket 3 is made to overhang radially inward from the peripheral surface of the exhaust port. The ball 4 positioned to suspend in the vicinity of the inner side end of the exhaust port 18 is provided to be capable of closing by coming into contact with the aperture periphery 32 by the outflow action of the liquid. COPYRIGHT: (C)2004,JPO