Patent ID: 9561949
Date: 2017-02-07
CPC Classifications: B64D,B65D,B67D,F16K

Claim:
1. A filler device for a fluid tank, the filler device comprising: a filler duct; a first stopper, for preventing overfilling of the tank, and a second stopper for preventing fluid from leaving the tank in unwanted manner; a first float mechanically connected to the first stopper such that placing the first float in a predetermined position places the first stopper in a substantially closed position; and a holder system for holding the second stopper, which system acts to place the second stopper in the closed position, and when a fluid passes along the duct in the filling direction, to place the second stopper in the open position; and wherein each of the stoppers is configured to be placed in an open position to allow fluid to pass along the duct, or in a closed position to plug the duct; wherein the holder system is arranged such that in an operating position of the device, under effect of weight of a heavy element, the holder system tends permanently to maintain the second stopper in its closed position; the heavy element includes a ball or a weight that also constitutes the second stopper; an internal surface of the duct presents a seat portion; the duct is arranged such that in the normal position of the device, under effect of gravity, the ball or weight tends to move onto the seat position and thus to plug the duct; and the seat portion is formed in a filling direction downstream from a bend forming an angle close to 180°.