Abstract: A pouring spout for hand-held portable fuel tank incorporates a float valve to automatically shut off fuel flow through the spout when the fuel level in a receiving reservoir reaches a given spatial relationship with the outlet end of the spout. An axially displaceable locking magnet within the spout locks the valve in the closed position. The locking magnet is released from its locking position by an unlatching magnet incorporated in a sealing cap. The unlatching magnet cancels the magnetic force that holds the magnetic valve in the closed position, thereby allowing it to move to its open position only when the closure cap is in position to seal the spout. The locking mechanism includes an axially displaceable magnet of given axial length, that is captured within a sealed container positioned in the pouring spout. The sealed container has an axial length greater than the length of the magnet.

Abstract: A pouring spout for hand-held portable fuel tank incorporates a float valve to automatically shut off fuel flow through the spout when the fuel level in a receiving reservoir reaches a given spatial relationship with the outlet end of the spout. An axially displaceable locking magnet within the spout lock the valve in the closed position. The locking magnet is released from its locking position by an unlatching magnet incorporated in a sealing cap. The unlatching magnet cancels the magnetic force that holds the magnetic valve in the closed position, thereby allowing it to move to its open position only when the closure cap is in position to seal the spout. The locking mechanism includes an axially displaceable magnet of given axial length, that is captured within a sealed container positioned in the pouring spout. The sealed container has an axial length greater than the length of the magnet.