Patent ID: 6318421
Filing Date: 2001-11-20
Classification: B67D,Y10T

Abstract:
Fill limiter for a liquid storage tank, said limiter being adapted to be at least partially introduced into said storage tank and comprising:a hollow upper body,a drop tube secured to said upper body and having a bottom open end and a chamber formed at least partially inside said drop tube,a valve element mounted in said hollow upper body and capable of being moved between an open position and a closed position,a valve seat formed in said hollow upper body and against which said valve element rests in said closed position,a float which can move vertically in said chamber, said valve element and said drop tube being arranged to permit the liquid fed into said hollow upper body to pass said valve element and be discharged in said storage tank through said bottom end of said drop tube,moving parts forming a piston body located inside a stationary internal tube which is housed in said drop tube and secured to said hollow upper body, said float being secured to said moving parts to be moved therewith by the thrust of the liquid exerted on said moving parts inside said internal tube.