SECURITY VENTING DEVICE AGAINST THE EXCESS FILLING OF FUEL TANKS

摘要

1. A safety venting device to prevent overfilling of fuel tanks of motor vehicles, of the kind in which the tank is connected to the atmosphere during the non-filling condition by means of a connecting piece (3) which opens out inside the container in an air pocket which prevents the rise of the fuel in the connecting piece, and which comprises a shut-off valve (4) for the said connecting piece (3), characterized in that the said valve (4) is closed by the insertion of the filling nozzle in the filling attachment (2) of the fuel tank.